aboutsummaryrefslogtreecommitdiff
path: root/ld/ldlang.c
blob: d43140f06b2fa4970b3833e848110fb1dd2df06f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
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
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
/* Linker command language support.
   Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000
   Free Software Foundation, Inc.

This file is part of GLD, the Gnu Linker.

GLD is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GLD 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 GLD; see the file COPYING.  If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.  */

#include "bfd.h"
#include "sysdep.h"
#include "libiberty.h"
#include "obstack.h"
#include "bfdlink.h"

#include "ld.h"
#include "ldmain.h"
#include "ldgram.h"
#include "ldexp.h"
#include "ldlang.h"
#include "ldemul.h"
#include "ldlex.h"
#include "ldmisc.h"
#include "ldctor.h"
#include "ldfile.h"
#include "fnmatch.h"
#include "demangle.h"

#include <ctype.h>

/* FORWARDS */
static lang_statement_union_type *new_statement PARAMS ((enum statement_enum,
							 size_t,
							 lang_statement_list_type*));


/* LOCALS */
static struct obstack stat_obstack;

#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
static CONST char *startup_file;
static lang_statement_list_type input_file_chain;
static boolean placed_commons = false;
static lang_output_section_statement_type *default_common_section;
static boolean map_option_f;
static bfd_vma print_dot;
static lang_input_statement_type *first_file;
static CONST char *current_target;
static CONST char *output_target;
static lang_statement_list_type statement_list;
static struct lang_phdr *lang_phdr_list;

static void lang_for_each_statement_worker
  PARAMS ((void (*func) (lang_statement_union_type *),
	   lang_statement_union_type *s));
static lang_input_statement_type *new_afile
  PARAMS ((const char *name, lang_input_file_enum_type file_type,
	   const char *target, boolean add_to_list));
static void init_os PARAMS ((lang_output_section_statement_type *s));
static void exp_init_os PARAMS ((etree_type *));
static void section_already_linked PARAMS ((bfd *, asection *, PTR));
static struct bfd_hash_entry *already_linked_newfunc
  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
	   const char *string));
static void already_linked_table_init PARAMS ((void));
static void already_linked_table_free PARAMS ((void));
static boolean wildcardp PARAMS ((const char *));
static lang_statement_union_type *wild_sort
  PARAMS ((lang_wild_statement_type *, lang_input_statement_type *,
	   asection *));
static lang_input_statement_type *lookup_name PARAMS ((const char *name));
static void load_symbols PARAMS ((lang_input_statement_type *entry,
				  lang_statement_list_type *));
static void wild PARAMS ((lang_wild_statement_type *s,
			  const char *section, const char *file,
			  const char *target,
			  lang_output_section_statement_type *output));
static bfd *open_output PARAMS ((const char *name));
static void ldlang_open_output PARAMS ((lang_statement_union_type *statement));
static void open_input_bfds
  PARAMS ((lang_statement_union_type *statement, boolean));
static void lang_reasonable_defaults PARAMS ((void));
static void lang_place_undefineds PARAMS ((void));
static void map_input_to_output_sections
  PARAMS ((lang_statement_union_type *s,
	   const char *target,
	   lang_output_section_statement_type *output_section_statement));
static void print_output_section_statement
  PARAMS ((lang_output_section_statement_type *output_section_statement));
static void print_assignment
  PARAMS ((lang_assignment_statement_type *assignment,
	   lang_output_section_statement_type *output_section));
static void print_input_statement PARAMS ((lang_input_statement_type *statm));
static boolean print_one_symbol PARAMS ((struct bfd_link_hash_entry *, PTR));
static void print_input_section PARAMS ((lang_input_section_type *in));
static void print_fill_statement PARAMS ((lang_fill_statement_type *fill));
static void print_data_statement PARAMS ((lang_data_statement_type *data));
static void print_address_statement PARAMS ((lang_address_statement_type *));
static void print_reloc_statement PARAMS ((lang_reloc_statement_type *reloc));
static void print_padding_statement PARAMS ((lang_padding_statement_type *s));
static void print_wild_statement
  PARAMS ((lang_wild_statement_type *w,
	   lang_output_section_statement_type *os));
static void print_group
  PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *));
static void print_statement PARAMS ((lang_statement_union_type *s,
				     lang_output_section_statement_type *os));
static void print_statement_list PARAMS ((lang_statement_union_type *s,
					  lang_output_section_statement_type *os));
static void print_statements PARAMS ((void));
static bfd_vma insert_pad PARAMS ((lang_statement_union_type **this_ptr,
				   fill_type fill, unsigned int power,
				   asection *output_section_statement,
				   bfd_vma dot));
static bfd_vma size_input_section
  PARAMS ((lang_statement_union_type **this_ptr,
	   lang_output_section_statement_type *output_section_statement,
	   fill_type fill, bfd_vma dot, boolean relax));
static void lang_finish PARAMS ((void));
static void ignore_bfd_errors PARAMS ((const char *, ...));
static void lang_check PARAMS ((void));
static void lang_common PARAMS ((void));
static boolean lang_one_common PARAMS ((struct bfd_link_hash_entry *, PTR));
static void lang_place_orphans PARAMS ((void));
static int topower PARAMS ((int));
static void lang_set_startof PARAMS ((void));
static void reset_memory_regions PARAMS ((void));
static void lang_record_phdrs PARAMS ((void));
static void lang_gc_wild
  PARAMS ((lang_wild_statement_type *, const char *, const char *));
static void lang_gc_sections_1 PARAMS ((lang_statement_union_type *));
static void lang_gc_sections PARAMS ((void));
static void lang_do_version_exports_section PARAMS ((void));
static void lang_check_section_addresses PARAMS ((void));

typedef void (*callback_t) PARAMS ((lang_wild_statement_type *,
				    asection *, lang_input_statement_type *,
				    void *));
static void walk_wild_section
  PARAMS ((lang_wild_statement_type *, const char *,
	   lang_input_statement_type *, callback_t, void *));
static void walk_wild_file
  PARAMS ((lang_wild_statement_type *, const char *,
	   lang_input_statement_type *, callback_t, void *));

static int    get_target PARAMS ((const bfd_target *, void *));
static void   stricpy PARAMS ((char *, char *));
static void   strcut PARAMS ((char *, char *));
static int    name_compare PARAMS ((char *, char *));
static int    closest_target_match PARAMS ((const bfd_target *, void *));
static char * get_first_input_target PARAMS ((void));
					
/* EXPORTS */
lang_output_section_statement_type *abs_output_section;
lang_statement_list_type lang_output_section_statement;
lang_statement_list_type *stat_ptr = &statement_list;
lang_statement_list_type file_chain = { NULL, NULL };
const char *entry_symbol = NULL;
boolean entry_from_cmdline;
boolean lang_has_input_file = false;
boolean had_output_filename = false;
boolean lang_float_flag = false;
boolean delete_output_file_on_failure = false;
struct lang_nocrossrefs *nocrossref_list;

etree_type *base; /* Relocation base - or null */


#if defined(__STDC__) || defined(ALMOST_STDC)
#define cat(a,b) a##b
#else
#define cat(a,b) a/**/b
#endif

#define new_stat(x,y) (cat(x,_type)*) new_statement(cat(x,_enum), sizeof(cat(x,_type)),y)

#define outside_section_address(q) ( (q)->output_offset + (q)->output_section->vma)

#define outside_symbol_address(q) ((q)->value +   outside_section_address(q->section))

#define SECTION_NAME_MAP_LENGTH (16)

PTR
stat_alloc (size)
     size_t size;
{
  return obstack_alloc (&stat_obstack, size);
}

/*----------------------------------------------------------------------
  Generic traversal routines for finding matching sections.
*/

static void
walk_wild_section (ptr, section, file, callback, data)
     lang_wild_statement_type *ptr;
     const char *section;
     lang_input_statement_type *file;
     callback_t callback;
     void *data;
{
  /* Don't process sections from files which were excluded. */
  if (ptr->exclude_filename_list != NULL)
    {
      struct name_list *list_tmp;
      for (list_tmp = ptr->exclude_filename_list; list_tmp; list_tmp = list_tmp->next)
        {
	  boolean match;

	  if (wildcardp (list_tmp->name))
	    match = fnmatch (list_tmp->name, file->filename, 0) == 0 ? true : false;
	  else
	    match = strcmp (list_tmp->name, file->filename) == 0 ? true : false;

	  if (match)
	    return;
	}
    }

  if (file->just_syms_flag == false)
    {
      register asection *s;
      boolean wildcard;

      if (section == NULL)
	wildcard = false;
      else
	wildcard = wildcardp (section);

      for (s = file->the_bfd->sections; s != NULL; s = s->next)
	{
	  boolean match;

	  if (section == NULL)
	    match = true;
	  else
	    {
	      const char *name;

	      name = bfd_get_section_name (file->the_bfd, s);
	      if (wildcard)
		match = fnmatch (section, name, 0) == 0 ? true : false;
	      else
		match = strcmp (section, name) == 0 ? true : false;
	    }

	  if (match)
	    (*callback) (ptr, s, file, data);
	}
    }
}

/* Handle a wild statement for a single file F.  */

static void
walk_wild_file (s, section, f, callback, data)
     lang_wild_statement_type *s;
     const char *section;
     lang_input_statement_type *f;
     callback_t callback;
     void *data;
{
  if (f->the_bfd == NULL
      || ! bfd_check_format (f->the_bfd, bfd_archive))
    walk_wild_section (s, section, f, callback, data);
  else
    {
      bfd *member;

      /* This is an archive file.  We must map each member of the
	 archive separately.  */
      member = bfd_openr_next_archived_file (f->the_bfd, (bfd *) NULL);
      while (member != NULL)
	{
	  /* When lookup_name is called, it will call the add_symbols
	     entry point for the archive.  For each element of the
	     archive which is included, BFD will call ldlang_add_file,
	     which will set the usrdata field of the member to the
	     lang_input_statement.  */
	  if (member->usrdata != NULL)
	    {
	      walk_wild_section (s, section,
				 (lang_input_statement_type *) member->usrdata,
				 callback, data);
	    }

	  member = bfd_openr_next_archived_file (f->the_bfd, member);
	}
    }
}

static void
walk_wild (s, section, file, callback, data)
     lang_wild_statement_type *s;
     const char *section;
     const char *file;
     callback_t callback;
     void *data;
{
  if (file == (char *) NULL)
    {
      /* Perform the iteration over all files in the list.  */
      LANG_FOR_EACH_INPUT_STATEMENT (f)
	{
	  walk_wild_file (s, section, f, callback, data);
	}
    }
  else if (wildcardp (file))
    {
      LANG_FOR_EACH_INPUT_STATEMENT (f)
	{
	  if (fnmatch (file, f->filename, FNM_FILE_NAME) == 0)
	    walk_wild_file (s, section, f, callback, data);
	}
    }
  else
    {
      lang_input_statement_type *f;

      /* Perform the iteration over a single file.  */
      f = lookup_name (file);
      walk_wild_file (s, section, f, callback, data);
    }
}  
     
/*----------------------------------------------------------------------
  lang_for_each_statement walks the parse tree and calls the provided
  function for each node
*/

static void
lang_for_each_statement_worker (func, s)
     void (*func) PARAMS ((lang_statement_union_type *));
     lang_statement_union_type *s;
{
  for (; s != (lang_statement_union_type *) NULL; s = s->next)
    {
      func (s);

      switch (s->header.type)
	{
	case lang_constructors_statement_enum:
	  lang_for_each_statement_worker (func, constructor_list.head);
	  break;
	case lang_output_section_statement_enum:
	  lang_for_each_statement_worker
	    (func,
	     s->output_section_statement.children.head);
	  break;
	case lang_wild_statement_enum:
	  lang_for_each_statement_worker
	    (func,
	     s->wild_statement.children.head);
	  break;
	case lang_group_statement_enum:
	  lang_for_each_statement_worker (func,
					  s->group_statement.children.head);
	  break;
	case lang_data_statement_enum:
	case lang_reloc_statement_enum:
	case lang_object_symbols_statement_enum:
	case lang_output_statement_enum:
	case lang_target_statement_enum:
	case lang_input_section_enum:
	case lang_input_statement_enum:
	case lang_assignment_statement_enum:
	case lang_padding_statement_enum:
	case lang_address_statement_enum:
	case lang_fill_statement_enum:
	  break;
	default:
	  FAIL ();
	  break;
	}
    }
}

void
lang_for_each_statement (func)
     void (*func) PARAMS ((lang_statement_union_type *));
{
  lang_for_each_statement_worker (func,
				  statement_list.head);
}

/*----------------------------------------------------------------------*/
void
lang_list_init (list)
     lang_statement_list_type *list;
{
  list->head = (lang_statement_union_type *) NULL;
  list->tail = &list->head;
}

/*----------------------------------------------------------------------

  build a new statement node for the parse tree

 */

static
lang_statement_union_type *
new_statement (type, size, list)
     enum statement_enum type;
     size_t size;
     lang_statement_list_type * list;
{
  lang_statement_union_type *new = (lang_statement_union_type *)
  stat_alloc (size);

  new->header.type = type;
  new->header.next = (lang_statement_union_type *) NULL;
  lang_statement_append (list, new, &new->header.next);
  return new;
}

/*
  Build a new input file node for the language. There are several ways
  in which we treat an input file, eg, we only look at symbols, or
  prefix it with a -l etc.

  We can be supplied with requests for input files more than once;
  they may, for example be split over serveral lines like foo.o(.text)
  foo.o(.data) etc, so when asked for a file we check that we havn't
  got it already so we don't duplicate the bfd.

 */
static lang_input_statement_type *
new_afile (name, file_type, target, add_to_list)
     CONST char *name;
     lang_input_file_enum_type file_type;
     CONST char *target;
     boolean add_to_list;
{
  lang_input_statement_type *p;

  if (add_to_list)
    p = new_stat (lang_input_statement, stat_ptr);
  else
    {
      p = ((lang_input_statement_type *)
	   stat_alloc (sizeof (lang_input_statement_type)));
      p->header.next = NULL;
    }

  lang_has_input_file = true;
  p->target = target;
  switch (file_type)
    {
    case lang_input_file_is_symbols_only_enum:
      p->filename = name;
      p->is_archive = false;
      p->real = true;
      p->local_sym_name = name;
      p->just_syms_flag = true;
      p->search_dirs_flag = false;
      break;
    case lang_input_file_is_fake_enum:
      p->filename = name;
      p->is_archive = false;
      p->real = false;
      p->local_sym_name = name;
      p->just_syms_flag = false;
      p->search_dirs_flag = false;
      break;
    case lang_input_file_is_l_enum:
      p->is_archive = true;
      p->filename = name;
      p->real = true;
      p->local_sym_name = concat ("-l", name, (const char *) NULL);
      p->just_syms_flag = false;
      p->search_dirs_flag = true;
      break;
    case lang_input_file_is_marker_enum:
      p->filename = name;
      p->is_archive = false;
      p->real = false;
      p->local_sym_name = name;
      p->just_syms_flag = false;
      p->search_dirs_flag = true;
      break;
    case lang_input_file_is_search_file_enum:
      p->filename = name;
      p->is_archive = false;
      p->real = true;
      p->local_sym_name = name;
      p->just_syms_flag = false;
      p->search_dirs_flag = true;
      break;
    case lang_input_file_is_file_enum:
      p->filename = name;
      p->is_archive = false;
      p->real = true;
      p->local_sym_name = name;
      p->just_syms_flag = false;
      p->search_dirs_flag = false;
      break;
    default:
      FAIL ();
    }
  p->the_bfd = (bfd *) NULL;
  p->asymbols = (asymbol **) NULL;
  p->next_real_file = (lang_statement_union_type *) NULL;
  p->next = (lang_statement_union_type *) NULL;
  p->symbol_count = 0;
  p->dynamic = config.dynamic_link;
  p->whole_archive = whole_archive;
  p->loaded = false;
  lang_statement_append (&input_file_chain,
			 (lang_statement_union_type *) p,
			 &p->next_real_file);
  return p;
}

lang_input_statement_type *
lang_add_input_file (name, file_type, target)
     CONST char *name;
     lang_input_file_enum_type file_type;
     CONST char *target;
{
  lang_has_input_file = true;
  return new_afile (name, file_type, target, true);
}

/* Build enough state so that the parser can build its tree */
void
lang_init ()
{
  obstack_begin (&stat_obstack, 1000);

  stat_ptr = &statement_list;

  lang_list_init (stat_ptr);

  lang_list_init (&input_file_chain);
  lang_list_init (&lang_output_section_statement);
  lang_list_init (&file_chain);
  first_file = lang_add_input_file ((char *) NULL,
				    lang_input_file_is_marker_enum,
				    (char *) NULL);
  abs_output_section = lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME);

  abs_output_section->bfd_section = bfd_abs_section_ptr;

}

/*----------------------------------------------------------------------
 A region is an area of memory declared with the
 MEMORY {  name:org=exp, len=exp ... }
 syntax.

 We maintain a list of all the regions here

 If no regions are specified in the script, then the default is used
 which is created when looked up to be the entire data space
*/

static lang_memory_region_type *lang_memory_region_list;
static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list;

lang_memory_region_type *
lang_memory_region_lookup (name)
     CONST char *CONST name;
{
  lang_memory_region_type *p;

  for (p = lang_memory_region_list;
       p != (lang_memory_region_type *) NULL;
       p = p->next)
    {
      if (strcmp (p->name, name) == 0)
	{
	  return p;
	}
    }

#if 0
  /* This code used to always use the first region in the list as the
     default region.  I changed it to instead use a region
     encompassing all of memory as the default region.  This permits
     NOLOAD sections to work reasonably without requiring a region.
     People should specify what region they mean, if they really want
     a region.  */
  if (strcmp (name, "*default*") == 0)
    {
      if (lang_memory_region_list != (lang_memory_region_type *) NULL)
	{
	  return lang_memory_region_list;
	}
    }
#endif

  {
    lang_memory_region_type *new =
    (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type));

    new->name = buystring (name);
    new->next = (lang_memory_region_type *) NULL;

    *lang_memory_region_list_tail = new;
    lang_memory_region_list_tail = &new->next;
    new->origin = 0;
    new->flags = 0;
    new->not_flags = 0;
    new->length = ~(bfd_size_type)0;
    new->current = 0;
    new->had_full_message = false;

    return new;
  }
}


lang_memory_region_type *
lang_memory_default (section)
     asection *section;
{
  lang_memory_region_type *p;

  flagword sec_flags = section->flags;

  /* Override SEC_DATA to mean a writable section.  */
  if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC)
    sec_flags |= SEC_DATA;

  for (p = lang_memory_region_list;
       p != (lang_memory_region_type *) NULL;
       p = p->next)
    {
      if ((p->flags & sec_flags) != 0
	  && (p->not_flags & sec_flags) == 0)
	{
	  return p;
	}
    }
  return lang_memory_region_lookup ("*default*");
}

lang_output_section_statement_type *
lang_output_section_find (name)
     CONST char *CONST name;
{
  lang_statement_union_type *u;
  lang_output_section_statement_type *lookup;

  for (u = lang_output_section_statement.head;
       u != (lang_statement_union_type *) NULL;
       u = lookup->next)
    {
      lookup = &u->output_section_statement;
      if (strcmp (name, lookup->name) == 0)
	{
	  return lookup;
	}
    }
  return (lang_output_section_statement_type *) NULL;
}

lang_output_section_statement_type *
lang_output_section_statement_lookup (name)
     CONST char *CONST name;
{
  lang_output_section_statement_type *lookup;

  lookup = lang_output_section_find (name);
  if (lookup == (lang_output_section_statement_type *) NULL)
    {

      lookup = (lang_output_section_statement_type *)
	new_stat (lang_output_section_statement, stat_ptr);
      lookup->region = (lang_memory_region_type *) NULL;
      lookup->lma_region = (lang_memory_region_type *) NULL;
      lookup->fill = 0;
      lookup->block_value = 1;
      lookup->name = name;

      lookup->next = (lang_statement_union_type *) NULL;
      lookup->bfd_section = (asection *) NULL;
      lookup->processed = false;
      lookup->sectype = normal_section;
      lookup->addr_tree = (etree_type *) NULL;
      lang_list_init (&lookup->children);

      lookup->memspec = (CONST char *) NULL;
      lookup->flags = 0;
      lookup->subsection_alignment = -1;
      lookup->section_alignment = -1;
      lookup->load_base = (union etree_union *) NULL;
      lookup->phdrs = NULL;

      lang_statement_append (&lang_output_section_statement,
			     (lang_statement_union_type *) lookup,
			     &lookup->next);
    }
  return lookup;
}

static void
lang_map_flags (flag)
     flagword flag;
{
  if (flag & SEC_ALLOC)
    minfo ("a");

  if (flag & SEC_CODE)
    minfo ("x");

  if (flag & SEC_READONLY)
    minfo ("r");

  if (flag & SEC_DATA)
    minfo ("w");

  if (flag & SEC_LOAD)
    minfo ("l");
}

void
lang_map ()
{
  lang_memory_region_type *m;

  minfo (_("\nMemory Configuration\n\n"));
  fprintf (config.map_file, "%-16s %-18s %-18s %s\n",
	   _("Name"), _("Origin"), _("Length"), _("Attributes"));

  for (m = lang_memory_region_list;
       m != (lang_memory_region_type *) NULL;
       m = m->next)
    {
      char buf[100];
      int len;

      fprintf (config.map_file, "%-16s ", m->name);

      sprintf_vma (buf, m->origin);
      minfo ("0x%s ", buf);
      len = strlen (buf);
      while (len < 16)
	{
	  print_space ();
	  ++len;
	}

      minfo ("0x%V", m->length);
      if (m->flags || m->not_flags)
	{
#ifndef BFD64
	  minfo ("        ");
#endif
	  if (m->flags)
	    {
	      print_space ();
	      lang_map_flags (m->flags);
	    }

	  if (m->not_flags)
	    {
	      minfo (" !");
	      lang_map_flags (m->not_flags);
	    }
	}

      print_nl ();
    }

  fprintf (config.map_file, _("\nLinker script and memory map\n\n"));

  print_statements ();
}

/* Initialize an output section.  */

static void
init_os (s)
     lang_output_section_statement_type *s;
{
  section_userdata_type *new;

  if (s->bfd_section != NULL)
    return;

  if (strcmp (s->name, DISCARD_SECTION_NAME) == 0)
    einfo (_("%P%F: Illegal use of `%s' section"), DISCARD_SECTION_NAME);

  new = ((section_userdata_type *)
	 stat_alloc (sizeof (section_userdata_type)));

  s->bfd_section = bfd_get_section_by_name (output_bfd, s->name);
  if (s->bfd_section == (asection *) NULL)
    s->bfd_section = bfd_make_section (output_bfd, s->name);
  if (s->bfd_section == (asection *) NULL)
    {
      einfo (_("%P%F: output format %s cannot represent section called %s\n"),
	     output_bfd->xvec->name, s->name);
    }
  s->bfd_section->output_section = s->bfd_section;

  /* We initialize an output sections output offset to minus its own */
  /* vma to allow us to output a section through itself */
  s->bfd_section->output_offset = 0;
  get_userdata (s->bfd_section) = (PTR) new;

  /* If there is a base address, make sure that any sections it might
     mention are initialized.  */
  if (s->addr_tree != NULL)
    exp_init_os (s->addr_tree);
}

/* Make sure that all output sections mentioned in an expression are
   initialized.  */

static void
exp_init_os (exp)
     etree_type *exp;
{
  switch (exp->type.node_class)
    {
    case etree_assign:
      exp_init_os (exp->assign.src);
      break;

    case etree_binary:
      exp_init_os (exp->binary.lhs);
      exp_init_os (exp->binary.rhs);
      break;

    case etree_trinary:
      exp_init_os (exp->trinary.cond);
      exp_init_os (exp->trinary.lhs);
      exp_init_os (exp->trinary.rhs);
      break;

    case etree_unary:
      exp_init_os (exp->unary.child);
      break;

    case etree_name:
      switch (exp->type.node_code)
	{
	case ADDR:
	case LOADADDR:
	case SIZEOF:
	  {
	    lang_output_section_statement_type *os;

	    os = lang_output_section_find (exp->name.name);
	    if (os != NULL && os->bfd_section == NULL)
	      init_os (os);
	  }
	}
      break;

    default:
      break;
    }
}

/* Sections marked with the SEC_LINK_ONCE flag should only be linked
   once into the output.  This routine checks each section, and
   arrange to discard it if a section of the same name has already
   been linked.  If the section has COMDAT information, then it uses
   that to decide whether the section should be included.  This code
   assumes that all relevant sections have the SEC_LINK_ONCE flag set;
   that is, it does not depend solely upon the section name.
   section_already_linked is called via bfd_map_over_sections.  */

/* This is the shape of the elements inside the already_linked hash
   table. It maps a name onto a list of already_linked elements with
   the same name.  It's possible to get more than one element in a
   list if the COMDAT sections have different names.  */

struct already_linked_hash_entry 
{
  struct bfd_hash_entry root;
  struct already_linked *entry;
};

struct already_linked 
{
  struct already_linked *next;
  asection *sec;
};

/* The hash table.  */

static struct bfd_hash_table already_linked_table;

/*ARGSUSED*/
static void
section_already_linked (abfd, sec, data)
     bfd *abfd;
     asection *sec;
     PTR data;
{
  lang_input_statement_type *entry = (lang_input_statement_type *) data;
  flagword flags;
  const char *name;
  struct already_linked *l;
  struct already_linked_hash_entry *already_linked_list;

  /* If we are only reading symbols from this object, then we want to
     discard all sections.  */
  if (entry->just_syms_flag)
    {
      sec->output_section = bfd_abs_section_ptr;
      sec->output_offset = sec->vma;
      return;
    }

  flags = bfd_get_section_flags (abfd, sec);

  if ((flags & SEC_LINK_ONCE) == 0)
    return;

  /* FIXME: When doing a relocateable link, we may have trouble
     copying relocations in other sections that refer to local symbols
     in the section being discarded.  Those relocations will have to
     be converted somehow; as of this writing I'm not sure that any of
     the backends handle that correctly.

     It is tempting to instead not discard link once sections when
     doing a relocateable link (technically, they should be discarded
     whenever we are building constructors).  However, that fails,
     because the linker winds up combining all the link once sections
     into a single large link once section, which defeats the purpose
     of having link once sections in the first place.

     Also, not merging link once sections in a relocateable link
     causes trouble for MIPS ELF, which relies in link once semantics
     to handle the .reginfo section correctly.  */

  name = bfd_get_section_name (abfd, sec);

  already_linked_list = 
    ((struct already_linked_hash_entry *)
     bfd_hash_lookup (&already_linked_table, name, true, false));

  for (l = already_linked_list->entry;  l != NULL; l = l->next)
    {
      if (sec->comdat == NULL
	  || l->sec->comdat == NULL
	  || strcmp (sec->comdat->name, l->sec->comdat->name) == 0)
	{
	  /* The section has already been linked.  See if we should
             issue a warning.  */
	  switch (flags & SEC_LINK_DUPLICATES)
	    {
	    default:
	      abort ();

	    case SEC_LINK_DUPLICATES_DISCARD:
	      break;

	    case SEC_LINK_DUPLICATES_ONE_ONLY:
	      if (sec->comdat == NULL)
		einfo (_("%P: %B: warning: ignoring duplicate section `%s'\n"),
		       abfd, name);
	      else
		einfo (_("%P: %B: warning: ignoring duplicate `%s' section symbol `%s'\n"),
		       abfd, name, sec->comdat->name);
	      break;

	    case SEC_LINK_DUPLICATES_SAME_CONTENTS:
	      /* FIXME: We should really dig out the contents of both
                 sections and memcmp them.  The COFF/PE spec says that
                 the Microsoft linker does not implement this
                 correctly, so I'm not going to bother doing it
                 either.  */
	      /* Fall through.  */
	    case SEC_LINK_DUPLICATES_SAME_SIZE:
	      if (bfd_section_size (abfd, sec)
		  != bfd_section_size (l->sec->owner, l->sec))
		einfo (_("%P: %B: warning: duplicate section `%s' has different size\n"),
		       abfd, name);
	      break;
	    }

	  /* Set the output_section field so that wild_doit does not
	     create a lang_input_section structure for this section.
	     Since there might be a symbol in the section being
	     discarded, we must retain a pointer to the section which
	     we are really going to use.  */
	  sec->output_section = bfd_abs_section_ptr;
	  if (sec->comdat != NULL)
	    sec->comdat->sec = l->sec;

	  return;
	}
    }

  /* This is the first section with this name.  Record it.  Allocate
     the memory from the same obstack as the hash table is kept in.  */

  l = ((struct already_linked *) 
       bfd_hash_allocate (&already_linked_table, sizeof *l));

  l->sec = sec;
  l->next = already_linked_list->entry;
  already_linked_list->entry = l;
}

/* Support routines for the hash table used by section_already_linked,
   initialize the table, fill in an entry and remove the table.  */

static struct bfd_hash_entry *
already_linked_newfunc (entry, table, string)
     struct bfd_hash_entry *entry ATTRIBUTE_UNUSED;
     struct bfd_hash_table *table;
     const char *string ATTRIBUTE_UNUSED;
{
  struct already_linked_hash_entry *ret = 
    bfd_hash_allocate (table, sizeof (struct already_linked_hash_entry));

  ret->entry = NULL;

  return (struct bfd_hash_entry *) ret;
}

static void
already_linked_table_init ()
{
  if (! bfd_hash_table_init_n (&already_linked_table,
			       already_linked_newfunc,
			       42))
    einfo (_("%P%F: Failed to create hash table\n"));
}

static void
already_linked_table_free ()
{
  bfd_hash_table_free (&already_linked_table);
}

/* The wild routines.

   These expand statements like *(.text) and foo.o to a list of
   explicit actions, like foo.o(.text), bar.o(.text) and
   foo.o(.text, .data).  */

/* Return true if the PATTERN argument is a wildcard pattern.
   Although backslashes are treated specially if a pattern contains
   wildcards, we do not consider the mere presence of a backslash to
   be enough to cause the the pattern to be treated as a wildcard.
   That lets us handle DOS filenames more naturally.  */

static boolean
wildcardp (pattern)
     const char *pattern;
{
  const char *s;

  for (s = pattern; *s != '\0'; ++s)
    if (*s == '?'
	|| *s == '*'
	|| *s == '[')
      return true;
  return false;
}

/* Add SECTION to the output section OUTPUT.  Do this by creating a
   lang_input_section statement which is placed at PTR.  FILE is the
   input file which holds SECTION.  */

void
wild_doit (ptr, section, output, file)
     lang_statement_list_type *ptr;
     asection *section;
     lang_output_section_statement_type *output;
     lang_input_statement_type *file;
{
  flagword flags;
  boolean discard;

  flags = bfd_get_section_flags (section->owner, section);

  discard = false;

  /* If we are doing a final link, discard sections marked with
     SEC_EXCLUDE.  */
  if (! link_info.relocateable
      && (flags & SEC_EXCLUDE) != 0)
    discard = true;

  /* Discard input sections which are assigned to a section named
     DISCARD_SECTION_NAME.  */
  if (strcmp (output->name, DISCARD_SECTION_NAME) == 0)
    discard = true;

  /* Discard debugging sections if we are stripping debugging
     information.  */
  if ((link_info.strip == strip_debugger || link_info.strip == strip_all)
      && (flags & SEC_DEBUGGING) != 0)
    discard = true;

  if (discard)
    {
      if (section->output_section == NULL)
	{
	  /* This prevents future calls from assigning this section.  */
	  section->output_section = bfd_abs_section_ptr;
	}
      return;
    }

  if (section->output_section == NULL)
    {
      boolean first;
      lang_input_section_type *new;
      flagword flags;

      if (output->bfd_section == NULL)
	{
	  init_os (output);
	  first = true;
	}
      else
	first = false;

      /* Add a section reference to the list */
      new = new_stat (lang_input_section, ptr);

      new->section = section;
      new->ifile = file;
      section->output_section = output->bfd_section;

      flags = section->flags;

      /* We don't copy the SEC_NEVER_LOAD flag from an input section
	 to an output section, because we want to be able to include a
	 SEC_NEVER_LOAD section in the middle of an otherwise loaded
	 section (I don't know why we want to do this, but we do).
	 build_link_order in ldwrite.c handles this case by turning
	 the embedded SEC_NEVER_LOAD section into a fill.  */

      flags &= ~ SEC_NEVER_LOAD;

      /* If final link, don't copy the SEC_LINK_ONCE flags, they've
	 already been processed.  One reason to do this is that on pe
	 format targets, .text$foo sections go into .text and it's odd
	 to see .text with SEC_LINK_ONCE set.  */

      if (! link_info.relocateable)
	flags &= ~ (SEC_LINK_ONCE | SEC_LINK_DUPLICATES);

      /* If this is not the first input section, and the SEC_READONLY
         flag is not currently set, then don't set it just because the
         input section has it set.  */

      if (! first && (section->output_section->flags & SEC_READONLY) == 0)
	flags &= ~ SEC_READONLY;

      section->output_section->flags |= flags;

      /* If SEC_READONLY is not set in the input section, then clear
         it from the output section.  */
      if ((section->flags & SEC_READONLY) == 0)
	section->output_section->flags &= ~SEC_READONLY;

      switch (output->sectype)
	{
	case normal_section:
	  break;
	case dsect_section:
	case copy_section:
	case info_section:
	case overlay_section:
	  output->bfd_section->flags &= ~SEC_ALLOC;
	  break;
	case noload_section:
	  output->bfd_section->flags &= ~SEC_LOAD;
	  output->bfd_section->flags |= SEC_NEVER_LOAD;
	  break;
	}

      /* Copy over SEC_SMALL_DATA.  */
      if (section->flags & SEC_SMALL_DATA)
	section->output_section->flags |= SEC_SMALL_DATA;

      if (section->alignment_power > output->bfd_section->alignment_power)
	output->bfd_section->alignment_power = section->alignment_power;

      /* If supplied an aligment, then force it.  */
      if (output->section_alignment != -1)
	output->bfd_section->alignment_power = output->section_alignment;
    }
}

/* Handle wildcard sorting.  This returns the lang_input_section which
   should follow the one we are going to create for SECTION and FILE,
   based on the sorting requirements of WILD.  It returns NULL if the
   new section should just go at the end of the current list.  */

static lang_statement_union_type *
wild_sort (wild, file, section)
     lang_wild_statement_type *wild;
     lang_input_statement_type *file;
     asection *section;
{
  const char *section_name;
  lang_statement_union_type *l;

  if (! wild->filenames_sorted && ! wild->sections_sorted)
    return NULL;

  section_name = bfd_get_section_name (file->the_bfd, section);
  for (l = wild->children.head; l != NULL; l = l->next)
    {
      lang_input_section_type *ls;

      if (l->header.type != lang_input_section_enum)
	continue;
      ls = &l->input_section;

      /* Sorting by filename takes precedence over sorting by section
         name.  */

      if (wild->filenames_sorted)
	{
	  const char *fn, *ln;
	  boolean fa, la;
	  int i;

	  /* The PE support for the .idata section as generated by
             dlltool assumes that files will be sorted by the name of
             the archive and then the name of the file within the
             archive.  */

	  if (file->the_bfd != NULL
	      && bfd_my_archive (file->the_bfd) != NULL)
	    {
	      fn = bfd_get_filename (bfd_my_archive (file->the_bfd));
	      fa = true;
	    }
	  else
	    {
	      fn = file->filename;
	      fa = false;
	    }

	  if (ls->ifile->the_bfd != NULL
	      && bfd_my_archive (ls->ifile->the_bfd) != NULL)
	    {
	      ln = bfd_get_filename (bfd_my_archive (ls->ifile->the_bfd));
	      la = true;
	    }
	  else
	    {
	      ln = ls->ifile->filename;
	      la = false;
	    }

	  i = strcmp (fn, ln);
	  if (i > 0)
	    continue;
	  else if (i < 0)
	    break;

	  if (fa || la)
	    {
	      if (fa)
		fn = file->filename;
	      if (la)
		ln = ls->ifile->filename;

	      i = strcmp (fn, ln);
	      if (i > 0)
		continue;
	      else if (i < 0)
		break;
	    }
	}

      /* Here either the files are not sorted by name, or we are
         looking at the sections for this file.  */

      if (wild->sections_sorted)
	{
	  if (strcmp (section_name,
		      bfd_get_section_name (ls->ifile->the_bfd,
					    ls->section))
	      < 0)
	    break;
	}
    }

  return l;
}

/* Expand a wild statement for a particular FILE.  SECTION may be
   NULL, in which case it is a wild card.  */

static void
output_section_callback (ptr, section, file, output)
     lang_wild_statement_type *ptr;
     asection *section;
     lang_input_statement_type *file;
     void *output;
{
  lang_statement_union_type *before;
  
  /* If the wild pattern was marked KEEP, the member sections
     should be as well.  */
  if (ptr->keep_sections)
    section->flags |= SEC_KEEP;
  
  before = wild_sort (ptr, file, section);
  
  /* Here BEFORE points to the lang_input_section which
     should follow the one we are about to add.  If BEFORE
     is NULL, then the section should just go at the end
     of the current list.  */
  
  if (before == NULL)
    wild_doit (&ptr->children, section, 
	       (lang_output_section_statement_type *) output, 
	       file);
  else
    {
      lang_statement_list_type list;
      lang_statement_union_type **pp;
      
      lang_list_init (&list);
      wild_doit (&list, section, 
		 (lang_output_section_statement_type *) output, 
		 file);
      
      /* If we are discarding the section, LIST.HEAD will
	 be NULL.  */
      if (list.head != NULL)
	{
	  ASSERT (list.head->next == NULL);
	  
	  for (pp = &ptr->children.head;
	       *pp != before;
	       pp = &(*pp)->next)
	    ASSERT (*pp != NULL);
	  
	  list.head->next = *pp;
	  *pp = list.head;
	}
    }
}

/* This is passed a file name which must have been seen already and
   added to the statement tree.  We will see if it has been opened
   already and had its symbols read.  If not then we'll read it.  */

static lang_input_statement_type *
lookup_name (name)
     const char *name;
{
  lang_input_statement_type *search;

  for (search = (lang_input_statement_type *) input_file_chain.head;
       search != (lang_input_statement_type *) NULL;
       search = (lang_input_statement_type *) search->next_real_file)
    {
      if (search->filename == (char *) NULL && name == (char *) NULL)
	return search;
      if (search->filename != (char *) NULL
	  && name != (char *) NULL
	  && strcmp (search->filename, name) == 0)
	break;
    }

  if (search == (lang_input_statement_type *) NULL)
    search = new_afile (name, lang_input_file_is_file_enum, default_target,
			false);

  /* If we have already added this file, or this file is not real
     (FIXME: can that ever actually happen?) or the name is NULL
     (FIXME: can that ever actually happen?) don't add this file.  */
  if (search->loaded
      || ! search->real
      || search->filename == (const char *) NULL)
    return search;

  load_symbols (search, (lang_statement_list_type *) NULL);

  return search;
}

/* Get the symbols for an input file.  */

static void
load_symbols (entry, place)
     lang_input_statement_type *entry;
     lang_statement_list_type *place;
{
  char **matching;

  if (entry->loaded)
    return;

  ldfile_open_file (entry);

  if (! bfd_check_format (entry->the_bfd, bfd_archive)
      && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching))
    {
      bfd_error_type err;
      lang_statement_list_type *hold;

      err = bfd_get_error ();
      if (err == bfd_error_file_ambiguously_recognized)
	{
	  char **p;

	  einfo (_("%B: file not recognized: %E\n"), entry->the_bfd);
	  einfo (_("%B: matching formats:"), entry->the_bfd);
	  for (p = matching; *p != NULL; p++)
	    einfo (" %s", *p);
	  einfo ("%F\n");
	}
      else if (err != bfd_error_file_not_recognized
	       || place == NULL)
	einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd);

      bfd_close (entry->the_bfd);
      entry->the_bfd = NULL;

      /* See if the emulation has some special knowledge.  */

      if (ldemul_unrecognized_file (entry))
	return;

      /* Try to interpret the file as a linker script.  */

      ldfile_open_command_file (entry->filename);

      hold = stat_ptr;
      stat_ptr = place;

      ldfile_assumed_script = true;
      parser_input = input_script;
      yyparse ();
      ldfile_assumed_script = false;

      stat_ptr = hold;

      return;
    }

  if (ldemul_recognized_file (entry))
    return;

  /* We don't call ldlang_add_file for an archive.  Instead, the
     add_symbols entry point will call ldlang_add_file, via the
     add_archive_element callback, for each element of the archive
     which is used.  */
  switch (bfd_get_format (entry->the_bfd))
    {
    default:
      break;

    case bfd_object:
      ldlang_add_file (entry);
      if (trace_files || trace_file_tries)
	info_msg ("%I\n", entry);
      break;

    case bfd_archive:
      if (entry->whole_archive)
	{
	  bfd *member = bfd_openr_next_archived_file (entry->the_bfd,
						      (bfd *) NULL);
	  while (member != NULL)
	    {
	      if (! bfd_check_format (member, bfd_object))
		einfo (_("%F%B: object %B in archive is not object\n"),
		       entry->the_bfd, member);
	      if (! ((*link_info.callbacks->add_archive_element)
		     (&link_info, member, "--whole-archive")))
		abort ();
	      if (! bfd_link_add_symbols (member, &link_info))
		einfo (_("%F%B: could not read symbols: %E\n"), member);
	      member = bfd_openr_next_archived_file (entry->the_bfd,
						     member);
	    }

	  entry->loaded = true;

	  return;
	}
    }

  if (! bfd_link_add_symbols (entry->the_bfd, &link_info))
    einfo (_("%F%B: could not read symbols: %E\n"), entry->the_bfd);

  entry->loaded = true;
}

     

/* Handle a wild statement.  SECTION or FILE or both may be NULL,
   indicating that it is a wildcard.  Separate lang_input_section
   statements are created for each part of the expansion; they are
   added after the wild statement S.  OUTPUT is the output section.  */

static void
wild (s, section, file, target, output)
     lang_wild_statement_type *s;
     const char *section;
     const char *file;
     const char *target ATTRIBUTE_UNUSED;
     lang_output_section_statement_type *output;
{
  walk_wild (s, section, file, output_section_callback, (void *) output);

  if (section != (char *) NULL
      && strcmp (section, "COMMON") == 0
      && default_common_section == NULL)
    {
      /* Remember the section that common is going to in case we later
         get something which doesn't know where to put it.  */
      default_common_section = output;
    }
}

/* Return true iff target is the sought target.  */
static int
get_target (target, data)
     const bfd_target * target;
     void * data;
{
  const char * sought = (const char *) data;
  
  return strcmp (target->name, sought) == 0;
}

/* Like strcpy() but convert to lower case as well.  */
static void
stricpy (dest, src)
     char * dest;
     char * src;
{
  char c;
  
  while ((c = * src ++) != 0)
    {
      if (isupper ((unsigned char) c))
	c = tolower (c);

      * dest ++ = c;
    }

  * dest = 0;
}

/* Remove the first occurance of needle (if any) in haystack
   from haystack.  */
static void
strcut (haystack, needle)
     char * haystack;
     char * needle;
{
  haystack = strstr (haystack, needle);
  
  if (haystack)
    {
      char * src;

      for (src = haystack + strlen (needle); * src;)
	* haystack ++ = * src ++;
      
      * haystack = 0;
    }
}

/* Compare two target format name strings.
   Return a value indicating how "similar" they are.  */
static int
name_compare (first, second)
     char * first;
     char * second;
{
  char * copy1;
  char * copy2;
  int    result;
  
  copy1 = xmalloc (strlen (first) + 1);
  copy2 = xmalloc (strlen (second) + 1);

  /* Convert the names to lower case.  */
  stricpy (copy1, first);
  stricpy (copy2, second);

  /* Remove and endian strings from the name.  */
  strcut (copy1, "big");
  strcut (copy1, "little");
  strcut (copy2, "big");
  strcut (copy2, "little");

  /* Return a value based on how many characters match,
     starting from the beginning.   If both strings are
     the same then return 10 * their length.  */
  for (result = 0; copy1 [result] == copy2 [result]; result ++)
    if (copy1 [result] == 0)
      {
	result *= 10;
	break;
      }
  
  free (copy1);
  free (copy2);

  return result;
}

/* Set by closest_target_match() below.  */
static const bfd_target * winner;

/* Scan all the valid bfd targets looking for one that has the endianness
   requirement that was specified on the command line, and is the nearest
   match to the original output target.  */
static int
closest_target_match (target, data)
     const bfd_target * target;
     void * data;
{
  const bfd_target * original = (const bfd_target *) data;
  
  if (command_line.endian == ENDIAN_BIG && target->byteorder != BFD_ENDIAN_BIG)
    return 0;
  
  if (command_line.endian == ENDIAN_LITTLE && target->byteorder != BFD_ENDIAN_LITTLE)
    return 0;

  /* Must be the same flavour.  */
  if (target->flavour != original->flavour)
    return 0;

  /* If we have not found a potential winner yet, then record this one.  */
  if (winner == NULL)
    {
      winner = target;
      return 0;
    }

  /* Oh dear, we now have two potential candidates for a successful match.
     Compare their names and choose the better one. */
  if (name_compare (target->name, original->name) > name_compare (winner->name, original->name))
    winner = target;

  /* Keep on searching until wqe have checked them all.  */
  return 0;
}

/* Return the BFD target format of the first input file.  */
static char *
get_first_input_target ()
{
  char * target = NULL;

  LANG_FOR_EACH_INPUT_STATEMENT (s)
    {
      if (s->header.type == lang_input_statement_enum
	  && s->real)
	{
	  ldfile_open_file (s);
	  
	  if (s->the_bfd != NULL
	      && bfd_check_format (s->the_bfd, bfd_object))
	    {
	      target = bfd_get_target (s->the_bfd);
	  
	      if (target != NULL)
		break;
	    }
	}
    }
  
  return target;
}

/* Open the output file.  */

static bfd *
open_output (name)
     const char * name;
{
  bfd * output;

  /* Has the user told us which output format to use ?  */
  if (output_target == (char *) NULL)
    {
      /* No - has the current target been set to something other than the default ?  */
      if (current_target != default_target)
	output_target = current_target;

      /* No - can we determine the format of the first input file ? */
      else
	{
	  output_target = get_first_input_target ();

	  /* Failed - use the default output target.  */
	  if (output_target == NULL)
	    output_target = default_target;
	}
    }
  
  /* Has the user requested a particular endianness on the command line ?  */
  if (command_line.endian != ENDIAN_UNSET)
    {
      const bfd_target * target;
      enum bfd_endian desired_endian;

      /* Get the chosen target.  */
      target = bfd_search_for_target (get_target, (void *) output_target);

      if (command_line.endian == ENDIAN_BIG)
	desired_endian = BFD_ENDIAN_BIG;
      else
	desired_endian = BFD_ENDIAN_LITTLE;
      
      /* See if the target has the wrong endianness.  This should not happen
	 if the linker script has provided big and little endian alternatives,
	 but some scrips don't do this.  */
      if (target->byteorder != desired_endian)
	{
	  /* If it does, then see if the target provides
	     an alternative with the correct endianness.  */
	  if (target->alternative_target != NULL
	      && (target->alternative_target->byteorder == desired_endian))
	    output_target = target->alternative_target->name;
	  else
	    {
	      /* Try to find a target as similar as possible to the default
		 target, but which has the desired endian characteristic.  */
	      (void) bfd_search_for_target (closest_target_match, (void *) target);
	      
	      /* Oh dear - we could not find any targets that satisfy our requirements.  */
	      if (winner == NULL)
		einfo (_("%P: warning: could not find any targets that match endianness requirement\n"));
	      else
		output_target = winner->name;
	    }
	}
    }
      
  output = bfd_openw (name, output_target);

  if (output == (bfd *) NULL)
    {
      if (bfd_get_error () == bfd_error_invalid_target)
	einfo (_("%P%F: target %s not found\n"), output_target);

      einfo (_("%P%F: cannot open output file %s: %E\n"), name);
    }

  delete_output_file_on_failure = true;

  /*  output->flags |= D_PAGED;*/

  if (! bfd_set_format (output, bfd_object))
    einfo (_("%P%F:%s: can not make object file: %E\n"), name);
  if (! bfd_set_arch_mach (output,
			   ldfile_output_architecture,
			   ldfile_output_machine))
    einfo (_("%P%F:%s: can not set architecture: %E\n"), name);

  link_info.hash = bfd_link_hash_table_create (output);
  if (link_info.hash == (struct bfd_link_hash_table *) NULL)
    einfo (_("%P%F: can not create link hash table: %E\n"));

  bfd_set_gp_size (output, g_switch_value);
  return output;
}

static void
ldlang_open_output (statement)
     lang_statement_union_type * statement;
{
  switch (statement->header.type)
    {
    case lang_output_statement_enum:
      ASSERT (output_bfd == (bfd *) NULL);
      output_bfd = open_output (statement->output_statement.name);
      ldemul_set_output_arch ();
      if (config.magic_demand_paged && !link_info.relocateable)
	output_bfd->flags |= D_PAGED;
      else
	output_bfd->flags &= ~D_PAGED;
      if (config.text_read_only)
	output_bfd->flags |= WP_TEXT;
      else
	output_bfd->flags &= ~WP_TEXT;
      if (link_info.traditional_format)
	output_bfd->flags |= BFD_TRADITIONAL_FORMAT;
      else
	output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT;
      break;

    case lang_target_statement_enum:
      current_target = statement->target_statement.target;
      break;
    default:
      break;
    }
}

/* Open all the input files.  */

static void
open_input_bfds (s, force)
     lang_statement_union_type *s;
     boolean force;
{
  for (; s != (lang_statement_union_type *) NULL; s = s->next)
    {
      switch (s->header.type)
	{
	case lang_constructors_statement_enum:
	  open_input_bfds (constructor_list.head, force);
	  break;
	case lang_output_section_statement_enum:
	  open_input_bfds (s->output_section_statement.children.head, force);
	  break;
	case lang_wild_statement_enum:
	  /* Maybe we should load the file's symbols */
	  if (s->wild_statement.filename
	      && ! wildcardp (s->wild_statement.filename))
	    (void) lookup_name (s->wild_statement.filename);
	  open_input_bfds (s->wild_statement.children.head, force);
	  break;
	case lang_group_statement_enum:
	  {
	    struct bfd_link_hash_entry *undefs;

	    /* We must continually search the entries in the group
               until no new symbols are added to the list of undefined
               symbols.  */

	    do
	      {
		undefs = link_info.hash->undefs_tail;
		open_input_bfds (s->group_statement.children.head, true);
	      }
	    while (undefs != link_info.hash->undefs_tail);
	  }
	  break;
	case lang_target_statement_enum:
	  current_target = s->target_statement.target;
	  break;
	case lang_input_statement_enum:
	  if (s->input_statement.real)
	    {
	      lang_statement_list_type add;

	      s->input_statement.target = current_target;

	      /* If we are being called from within a group, and this
                 is an archive which has already been searched, then
                 force it to be researched unless the whole archive
		 has been loaded already.  */
	      if (force
		  && !s->input_statement.whole_archive
		  && s->input_statement.loaded
		  && bfd_check_format (s->input_statement.the_bfd,
				       bfd_archive))
		s->input_statement.loaded = false;

	      lang_list_init (&add);

	      load_symbols (&s->input_statement, &add);

	      if (add.head != NULL)
		{
		  *add.tail = s->next;
		  s->next = add.head;
		}
	    }
	  break;
	default:
	  break;
	}
    }
}

/* If there are [COMMONS] statements, put a wild one into the bss section */

static void
lang_reasonable_defaults ()
{
#if 0
  lang_output_section_statement_lookup (".text");
  lang_output_section_statement_lookup (".data");

  default_common_section =
    lang_output_section_statement_lookup (".bss");


  if (placed_commons == false)
    {
      lang_wild_statement_type *new =
      new_stat (lang_wild_statement,
		&default_common_section->children);

      new->section_name = "COMMON";
      new->filename = (char *) NULL;
      lang_list_init (&new->children);
    }
#endif

}

/*
 Add the supplied name to the symbol table as an undefined reference.
 Remove items from the chain as we open input bfds
 */
typedef struct ldlang_undef_chain_list
{
  struct ldlang_undef_chain_list *next;
  char *name;
}                       ldlang_undef_chain_list_type;

static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head;

void
ldlang_add_undef (name)
     CONST char *CONST name;
{
  ldlang_undef_chain_list_type *new =
    ((ldlang_undef_chain_list_type *)
     stat_alloc (sizeof (ldlang_undef_chain_list_type)));

  new->next = ldlang_undef_chain_list_head;
  ldlang_undef_chain_list_head = new;

  new->name = buystring (name);
}

/* Run through the list of undefineds created above and place them
   into the linker hash table as undefined symbols belonging to the
   script file.
*/
static void
lang_place_undefineds ()
{
  ldlang_undef_chain_list_type *ptr;

  for (ptr = ldlang_undef_chain_list_head;
       ptr != (ldlang_undef_chain_list_type *) NULL;
       ptr = ptr->next)
    {
      struct bfd_link_hash_entry *h;

      h = bfd_link_hash_lookup (link_info.hash, ptr->name, true, false, true);
      if (h == (struct bfd_link_hash_entry *) NULL)
	einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
      if (h->type == bfd_link_hash_new)
	{
	  h->type = bfd_link_hash_undefined;
	  h->u.undef.abfd = NULL;
	  bfd_link_add_undef (link_info.hash, h);
	}
    }
}

/* Open input files and attatch to output sections */
static void
map_input_to_output_sections (s, target, output_section_statement)
     lang_statement_union_type * s;
     CONST char *target;
     lang_output_section_statement_type * output_section_statement;
{
  for (; s != (lang_statement_union_type *) NULL; s = s->next)
    {
      switch (s->header.type)
	{


	case lang_wild_statement_enum:
	  wild (&s->wild_statement, s->wild_statement.section_name,
		s->wild_statement.filename, target,
		output_section_statement);

	  break;
	case lang_constructors_statement_enum:
	  map_input_to_output_sections (constructor_list.head,
					target,
					output_section_statement);
	  break;
	case lang_output_section_statement_enum:
	  map_input_to_output_sections (s->output_section_statement.children.head,
					target,
					&s->output_section_statement);
	  break;
	case lang_output_statement_enum:
	  break;
	case lang_target_statement_enum:
	  target = s->target_statement.target;
	  break;
	case lang_group_statement_enum:
	  map_input_to_output_sections (s->group_statement.children.head,
					target,
					output_section_statement);
	  break;
	case lang_fill_statement_enum:
	case lang_input_section_enum:
	case lang_object_symbols_statement_enum:
	case lang_data_statement_enum:
	case lang_reloc_statement_enum:
	case lang_padding_statement_enum:
	case lang_input_statement_enum:
	  if (output_section_statement != NULL
	      && output_section_statement->bfd_section == NULL)
	    init_os (output_section_statement);
	  break;
	case lang_assignment_statement_enum:
	  if (output_section_statement != NULL
	      && output_section_statement->bfd_section == NULL)
	    init_os (output_section_statement);

	  /* Make sure that any sections mentioned in the assignment
             are initialized.  */
	  exp_init_os (s->assignment_statement.exp);
	  break;
	case lang_afile_asection_pair_statement_enum:
	  FAIL ();
	  break;
	case lang_address_statement_enum:
	  /* Mark the specified section with the supplied address */
	  {
	    lang_output_section_statement_type *os =
	      lang_output_section_statement_lookup
		(s->address_statement.section_name);

	    if (os->bfd_section == NULL)
	      init_os (os);
	    os->addr_tree = s->address_statement.address;
	  }
	  break;
	}
    }
}

static void
print_output_section_statement (output_section_statement)
     lang_output_section_statement_type * output_section_statement;
{
  asection *section = output_section_statement->bfd_section;
  int len;

  if (output_section_statement != abs_output_section)
    {
      minfo ("\n%s", output_section_statement->name);

      if (section != NULL)
	{
	  print_dot = section->vma;

	  len = strlen (output_section_statement->name);
	  if (len >= SECTION_NAME_MAP_LENGTH - 1)
	    {
	      print_nl ();
	      len = 0;
	    }
	  while (len < SECTION_NAME_MAP_LENGTH)
	    {
	      print_space ();
	      ++len;
	    }

	  minfo ("0x%V %W", section->vma, section->_raw_size);

	  if (output_section_statement->load_base != NULL)
	    {
	      bfd_vma addr;

	      addr = exp_get_abs_int (output_section_statement->load_base, 0,
				      "load base", lang_final_phase_enum);
	      minfo (_(" load address 0x%V"), addr);
	    }
	}

      print_nl ();
    }

  print_statement_list (output_section_statement->children.head,
			output_section_statement);
}

static void
print_assignment (assignment, output_section)
     lang_assignment_statement_type * assignment;
     lang_output_section_statement_type * output_section;
{
  int i;
  etree_value_type result;

  for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
    print_space ();

  result = exp_fold_tree (assignment->exp->assign.src, output_section,
			  lang_final_phase_enum, print_dot, &print_dot);
  if (result.valid_p)
    minfo ("0x%V", result.value + result.section->bfd_section->vma);
  else
    {
      minfo ("*undef*   ");
#ifdef BFD64
      minfo ("        ");
#endif
    }

  minfo ("                ");

  exp_print_tree (assignment->exp);

  print_nl ();
}

static void
print_input_statement (statm)
     lang_input_statement_type * statm;
{
  if (statm->filename != (char *) NULL)
    {
      fprintf (config.map_file, "LOAD %s\n", statm->filename);
    }
}

/* Print all symbols defined in a particular section.  This is called
   via bfd_link_hash_traverse.  */

static boolean 
print_one_symbol (hash_entry, ptr)
     struct bfd_link_hash_entry *hash_entry;
     PTR ptr;
{
  asection *sec = (asection *) ptr;

  if ((hash_entry->type == bfd_link_hash_defined
       || hash_entry->type == bfd_link_hash_defweak)
      && sec == hash_entry->u.def.section)
    {
      int i;

      for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
	print_space ();
      minfo ("0x%V   ",
	     (hash_entry->u.def.value
	      + hash_entry->u.def.section->output_offset
	      + hash_entry->u.def.section->output_section->vma));

      minfo ("             %T\n", hash_entry->root.string);
    }

  return true;
}

/* Print information about an input section to the map file.  */

static void
print_input_section (in)
     lang_input_section_type * in;
{
  asection *i = in->section;
  bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size;
  unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
						ldfile_output_machine);
  if (size != 0)
    {
      print_space ();

      minfo ("%s", i->name);

      if (i->output_section != NULL)
	{
	  int len;

	  len = 1 + strlen (i->name);
	  if (len >= SECTION_NAME_MAP_LENGTH - 1)
	    {
	      print_nl ();
	      len = 0;
	    }
	  while (len < SECTION_NAME_MAP_LENGTH)
	    {
	      print_space ();
	      ++len;
	    }

	  minfo ("0x%V %W %B\n",
		 i->output_section->vma + i->output_offset, size / opb,
		 i->owner);

	  if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size)
	    {
	      len = SECTION_NAME_MAP_LENGTH + 3;
#ifdef BFD64
	      len += 16;
#else
	      len += 8;
#endif
	      while (len > 0)
		{
		  print_space ();
		  --len;
		}

	      minfo (_("%W (size before relaxing)\n"), i->_raw_size);
	    }

	  bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i);

	  print_dot = i->output_section->vma + i->output_offset + size / opb;
	}
    }
}

static void
print_fill_statement (fill)
     lang_fill_statement_type * fill;
{
  fprintf (config.map_file, " FILL mask 0x%x\n", fill->fill);
}

static void
print_data_statement (data)
     lang_data_statement_type * data;
{
  int i;
  bfd_vma addr;
  bfd_size_type size;
  const char *name;
  unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
						ldfile_output_machine);

  for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
    print_space ();

  addr = data->output_vma;
  if (data->output_section != NULL)
    addr += data->output_section->vma;

  switch (data->type)
    {
    default:
      abort ();
    case BYTE:
      size = BYTE_SIZE;
      name = "BYTE";
      break;
    case SHORT:
      size = SHORT_SIZE;
      name = "SHORT";
      break;
    case LONG:
      size = LONG_SIZE;
      name = "LONG";
      break;
    case QUAD:
      size = QUAD_SIZE;
      name = "QUAD";
      break;
    case SQUAD:
      size = QUAD_SIZE;
      name = "SQUAD";
      break;
    }

  minfo ("0x%V %W %s 0x%v", addr, size, name, data->value);

  if (data->exp->type.node_class != etree_value)
    {
      print_space ();
      exp_print_tree (data->exp);
    }

  print_nl ();

  print_dot = addr + size / opb;

}

/* Print an address statement.  These are generated by options like
   -Ttext.  */

static void
print_address_statement (address)
     lang_address_statement_type *address;
{
  minfo (_("Address of section %s set to "), address->section_name);
  exp_print_tree (address->address);
  print_nl ();
}

/* Print a reloc statement.  */

static void
print_reloc_statement (reloc)
     lang_reloc_statement_type *reloc;
{
  int i;
  bfd_vma addr;
  bfd_size_type size;
  unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
						ldfile_output_machine); 

  for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
    print_space ();

  addr = reloc->output_vma;
  if (reloc->output_section != NULL)
    addr += reloc->output_section->vma;

  size = bfd_get_reloc_size (reloc->howto);

  minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name);

  if (reloc->name != NULL)
    minfo ("%s+", reloc->name);
  else
    minfo ("%s+", reloc->section->name);

  exp_print_tree (reloc->addend_exp);

  print_nl ();

  print_dot = addr + size / opb;
}  

static void
print_padding_statement (s)
     lang_padding_statement_type *s;
{
  int len;
  bfd_vma addr;
  unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
						ldfile_output_machine); 

  minfo (" *fill*");

  len = sizeof " *fill*" - 1;
  while (len < SECTION_NAME_MAP_LENGTH)
    {
      print_space ();
      ++len;
    }

  addr = s->output_offset;
  if (s->output_section != NULL)
    addr += s->output_section->vma;
  minfo ("0x%V %W", addr, s->size);

  if (s->fill != 0)
    minfo (" %u", s->fill);

  print_nl ();

  print_dot = addr + s->size / opb;
}

static void
print_wild_statement (w, os)
     lang_wild_statement_type * w;
     lang_output_section_statement_type * os;
{
  print_space ();

  if (w->filenames_sorted)
    minfo ("SORT(");
  if (w->exclude_filename_list != NULL)
    {
      name_list *tmp;
      minfo ("EXCLUDE_FILE ( %s", w->exclude_filename_list->name);
      for (tmp=w->exclude_filename_list->next; tmp; tmp = tmp->next)
        minfo (", %s", tmp->name);
      minfo (")");
     }
   if (w->filename != NULL)
    minfo ("%s", w->filename);
  else
    minfo ("*");
  if (w->filenames_sorted)
    minfo (")");

  minfo ("(");
  if (w->sections_sorted)
    minfo ("SORT(");
  if (w->section_name != NULL)
    minfo ("%s", w->section_name);
  else
    minfo ("*");
  if (w->sections_sorted)
    minfo (")");
  minfo (")");

  print_nl ();

  print_statement_list (w->children.head, os);
}

/* Print a group statement.  */

static void
print_group (s, os)
     lang_group_statement_type *s;
     lang_output_section_statement_type *os;
{
  fprintf (config.map_file, "START GROUP\n");
  print_statement_list (s->children.head, os);
  fprintf (config.map_file, "END GROUP\n");
}

/* Print the list of statements in S.
   This can be called for any statement type.  */

static void
print_statement_list (s, os)
     lang_statement_union_type *s;
     lang_output_section_statement_type *os;
{
  while (s != NULL)
    {
      print_statement (s, os);
      s = s->next;
    }
}

/* Print the first statement in statement list S.
   This can be called for any statement type.  */

static void
print_statement (s, os)
     lang_statement_union_type *s;
     lang_output_section_statement_type *os;
{
  switch (s->header.type)
    {
    default:
      fprintf (config.map_file, _("Fail with %d\n"), s->header.type);
      FAIL ();
      break;
    case lang_constructors_statement_enum:
      if (constructor_list.head != NULL)
	{
	  if (constructors_sorted)
	    minfo (" SORT (CONSTRUCTORS)\n");
	  else
	    minfo (" CONSTRUCTORS\n");
	  print_statement_list (constructor_list.head, os);
	}
      break;
    case lang_wild_statement_enum:
      print_wild_statement (&s->wild_statement, os);
      break;
    case lang_address_statement_enum:
      print_address_statement (&s->address_statement);
      break;
    case lang_object_symbols_statement_enum:
      minfo (" CREATE_OBJECT_SYMBOLS\n");
      break;
    case lang_fill_statement_enum:
      print_fill_statement (&s->fill_statement);
      break;
    case lang_data_statement_enum:
      print_data_statement (&s->data_statement);
      break;
    case lang_reloc_statement_enum:
      print_reloc_statement (&s->reloc_statement);
      break;
    case lang_input_section_enum:
      print_input_section (&s->input_section);
      break;
    case lang_padding_statement_enum:
      print_padding_statement (&s->padding_statement);
      break;
    case lang_output_section_statement_enum:
      print_output_section_statement (&s->output_section_statement);
      break;
    case lang_assignment_statement_enum:
      print_assignment (&s->assignment_statement, os);
      break;
    case lang_target_statement_enum:
      fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target);
      break;
    case lang_output_statement_enum:
      minfo ("OUTPUT(%s", s->output_statement.name);
      if (output_target != NULL)
	minfo (" %s", output_target);
      minfo (")\n");
      break;
    case lang_input_statement_enum:
      print_input_statement (&s->input_statement);
      break;
    case lang_group_statement_enum:
      print_group (&s->group_statement, os);
      break;
    case lang_afile_asection_pair_statement_enum:
      FAIL ();
      break;
    }
}

static void
print_statements ()
{
  print_statement_list (statement_list.head, abs_output_section);
}

/* Print the first N statements in statement list S to STDERR.
   If N == 0, nothing is printed.
   If N < 0, the entire list is printed.
   Intended to be called from GDB.  */

void
dprint_statement (s, n)
     lang_statement_union_type * s;
     int n;
{
  FILE *map_save = config.map_file;

  config.map_file = stderr;

  if (n < 0)
    print_statement_list (s, abs_output_section);
  else
    {
      while (s && --n >= 0)
	{
	  print_statement (s, abs_output_section);
	  s = s->next;
	}
    }

  config.map_file = map_save;
}

static bfd_vma
insert_pad (this_ptr, fill, power, output_section_statement, dot)
     lang_statement_union_type ** this_ptr;
     fill_type fill;
     unsigned int power;
     asection * output_section_statement;
     bfd_vma dot;
{
  /* Align this section first to the
     input sections requirement, then
     to the output section's requirement.
     If this alignment is > than any seen before,
     then record it too. Perform the alignment by
     inserting a magic 'padding' statement.
     */

  unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
						ldfile_output_machine); 
  unsigned int alignment_needed = align_power (dot, power) - dot;

  if (alignment_needed != 0)
    {
      lang_statement_union_type *new =
	((lang_statement_union_type *)
	 stat_alloc (sizeof (lang_padding_statement_type)));

      /* Link into existing chain */
      new->header.next = *this_ptr;
      *this_ptr = new;
      new->header.type = lang_padding_statement_enum;
      new->padding_statement.output_section = output_section_statement;
      new->padding_statement.output_offset =
	dot - output_section_statement->vma;
      new->padding_statement.fill = fill;
      new->padding_statement.size = alignment_needed * opb;
    }


  /* Remember the most restrictive alignment */
  if (power > output_section_statement->alignment_power)
    {
      output_section_statement->alignment_power = power;
    }
  output_section_statement->_raw_size += alignment_needed * opb;

  return dot + alignment_needed;
}

/* Work out how much this section will move the dot point */
static bfd_vma
size_input_section (this_ptr, output_section_statement, fill, dot, relax)
     lang_statement_union_type ** this_ptr;
     lang_output_section_statement_type * output_section_statement;
     fill_type fill;
     bfd_vma dot;
     boolean relax ATTRIBUTE_UNUSED;
{
  lang_input_section_type *is = &((*this_ptr)->input_section);
  asection *i = is->section;
  unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
						ldfile_output_machine); 

  if (is->ifile->just_syms_flag == false)
    {
      if (output_section_statement->subsection_alignment != -1)
       i->alignment_power =
	output_section_statement->subsection_alignment;

      dot = insert_pad (this_ptr, fill, i->alignment_power,
			output_section_statement->bfd_section, dot);

      /* Remember where in the output section this input section goes */

      i->output_offset = dot - output_section_statement->bfd_section->vma;

      /* Mark how big the output section must be to contain this now
	 */
      if (i->_cooked_size != 0)
	dot += i->_cooked_size / opb;
      else
	dot += i->_raw_size / opb;
      output_section_statement->bfd_section->_raw_size = 
        (dot - output_section_statement->bfd_section->vma) * opb;
    }
  else
    {
      i->output_offset = i->vma - output_section_statement->bfd_section->vma;
    }

  return dot;
}

#define IGNORE_SECTION(bfd, s) \
  (((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_LOAD)) != (SEC_ALLOC | SEC_LOAD)) \
   || bfd_section_size (bfd, s) == 0)

/* Check to see if any allocated sections overlap with other allocated
   sections.  This can happen when the linker script specifically specifies
   the output section addresses of the two sections.  */
static void
lang_check_section_addresses ()
{
  asection * s;
  unsigned opb = bfd_octets_per_byte (output_bfd);

  /* Scan all sections in the output list.  */
  for (s = output_bfd->sections; s != NULL; s = s->next)
    {
      asection * os;
      
      /* Ignore sections which are not loaded or which have no contents.  */
      if (IGNORE_SECTION (output_bfd, s))
	continue;
      
      /* Once we reach section 's' stop our seach.  This prevents two
	 warning messages from being produced, one for 'section A overlaps
	 section B' and one for 'section B overlaps section A'.  */
      for (os = output_bfd->sections; os != s; os = os->next)
	{
	  bfd_vma s_start;
	  bfd_vma s_end;
	  bfd_vma os_start;
	  bfd_vma os_end;
	  
	  /* Only consider loadable sections with real contents.  */
	  if (IGNORE_SECTION (output_bfd, os))
	    continue;

	  /* We must check the sections' LMA addresses not their
	     VMA addresses because overlay sections can have
	     overlapping VMAs but they must have distinct LMAs.  */
	  s_start  = bfd_section_lma (output_bfd, s);
	  os_start = bfd_section_lma (output_bfd, os);
	  s_end    = s_start  + bfd_section_size (output_bfd, s) / opb - 1;
	  os_end   = os_start + bfd_section_size (output_bfd, os) / opb - 1;
	  
	  /* Look for an overlap.  */
	  if ((s_end < os_start) || (s_start > os_end))
	    continue;
	  
	  einfo (
_("%X%P: section %s [%V -> %V] overlaps section %s [%V -> %V]\n"),
		 s->name, s_start, s_end, os->name, os_start, os_end);
	  
	  /* Once we have found one overlap for this section,
	     stop looking for others.  */
	  break;
	}
    }
}

/* This variable indicates whether bfd_relax_section should be called
   again.  */

static boolean relax_again;

/* Make sure the new address is within the region.  We explicitly permit the
   current address to be at the exact end of the region when the address is
   non-zero, in case the region is at the end of addressable memory and the
   calculation wraps around.  */ 

static void
os_region_check (os, region, tree, base)
  lang_output_section_statement_type *os;
  struct memory_region_struct *region;
  etree_type *tree;
  bfd_vma base;
{
  if ((region->current < region->origin
       || (region->current - region->origin > region->length))
      && ((region->current != region->origin + region->length)
           || base == 0))
    {
      if (tree != (etree_type *) NULL)
        {
          einfo (_("%X%P: address 0x%v of %B section %s is not within region %s\n"),
                 region->current,
                 os->bfd_section->owner,
                 os->bfd_section->name,
                 region->name);
        }
      else
        {
          einfo (_("%X%P: region %s is full (%B section %s)\n"),
                 region->name,
                 os->bfd_section->owner,
                 os->bfd_section->name);
        }
      /* Reset the region pointer.  */
      region->current = region->origin;
    }
}

/* Set the sizes for all the output sections.  */

bfd_vma
lang_size_sections (s, output_section_statement, prev, fill, dot, relax)
     lang_statement_union_type * s;
     lang_output_section_statement_type * output_section_statement;
     lang_statement_union_type ** prev;
     fill_type fill;
     bfd_vma dot;
     boolean relax;
{
  unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
						ldfile_output_machine);

  /* Size up the sections from their constituent parts.  */
  for (; s != (lang_statement_union_type *) NULL; s = s->next)
    {
      switch (s->header.type)
	{
	case lang_output_section_statement_enum:
	  {
	    bfd_vma after;
	    lang_output_section_statement_type *os = &s->output_section_statement;

	    if (os->bfd_section == NULL)
	      /* This section was never actually created.  */
	      break;

	    /* If this is a COFF shared library section, use the size and
	       address from the input section.  FIXME: This is COFF
	       specific; it would be cleaner if there were some other way
	       to do this, but nothing simple comes to mind.  */
	    if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0)
	      {
		asection * input;

		if (os->children.head == NULL
		    || os->children.head->next != NULL
		    || os->children.head->header.type != lang_input_section_enum)
		  einfo (_("%P%X: Internal error on COFF shared library section %s\n"),
			 os->name);

		input = os->children.head->input_section.section;
		bfd_set_section_vma (os->bfd_section->owner,
				     os->bfd_section,
				     bfd_section_vma (input->owner, input));
		os->bfd_section->_raw_size = input->_raw_size;
		break;
	      }

	    if (bfd_is_abs_section (os->bfd_section))
	      {
		/* No matter what happens, an abs section starts at zero.  */
		ASSERT (os->bfd_section->vma == 0);
	      }
	    else
	      {
		if (os->addr_tree == (etree_type *) NULL)
		  {
		    /* No address specified for this section, get one
		       from the region specification.  */
		    if (os->region == (lang_memory_region_type *) NULL
			|| (((bfd_get_section_flags (output_bfd, os->bfd_section)
			      & (SEC_ALLOC | SEC_LOAD)) != 0)
			    && os->region->name[0] == '*'
			    && strcmp (os->region->name, "*default*") == 0))
		      {
			os->region = lang_memory_default (os->bfd_section);
		      }

		    /* If a loadable section is using the default memory
		       region, and some non default memory regions were
		       defined, issue a warning.  */
		    if ((bfd_get_section_flags (output_bfd, os->bfd_section)
			 & (SEC_ALLOC | SEC_LOAD)) != 0
			&& ! link_info.relocateable
			&& strcmp (os->region->name, "*default*") == 0
			&& lang_memory_region_list != NULL
			&& (strcmp (lang_memory_region_list->name, "*default*") != 0
			    || lang_memory_region_list->next != NULL))
		      einfo (_("%P: warning: no memory region specified for section `%s'\n"),
			     bfd_get_section_name (output_bfd, os->bfd_section));

		    dot = os->region->current;
 
		    if (os->section_alignment == -1)
		      {
			bfd_vma olddot;

			olddot = dot;
			dot = align_power (dot, os->bfd_section->alignment_power);

			if (dot != olddot && config.warn_section_align)
			  einfo (_("%P: warning: changing start of section %s by %u bytes\n"),
				 os->name, (unsigned int) (dot - olddot));
		      }
		  }
		else
		  {
		    etree_value_type r;

		    r = exp_fold_tree (os->addr_tree,
				       abs_output_section,
				       lang_allocating_phase_enum,
				       dot, &dot);
		    if (r.valid_p == false)
		      {
			einfo (_("%F%S: non constant address expression for section %s\n"),
			       os->name);
		      }
		    dot = r.value + r.section->bfd_section->vma;
		  }
		
		/* The section starts here.
		   First, align to what the section needs.  */

		if (os->section_alignment != -1)
		  dot = align_power (dot, os->section_alignment);

		bfd_set_section_vma (0, os->bfd_section, dot);
		
		os->bfd_section->output_offset = 0;
	      }

	    (void) lang_size_sections (os->children.head, os, &os->children.head,
				       os->fill, dot, relax);
	    
            /* put the section within the requested block size, or align at
               the block boundary */
	    after = ALIGN_N (os->bfd_section->vma
			     + os->bfd_section->_raw_size / opb,
			     /* The coercion here is important, see ld.h.  */
			     (bfd_vma) os->block_value);

	    if (bfd_is_abs_section (os->bfd_section))
	      ASSERT (after == os->bfd_section->vma);
	    else
	      os->bfd_section->_raw_size = 
                (after - os->bfd_section->vma) * opb;
	    dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb;
	    os->processed = true;

	    /* Update dot in the region ?
	       We only do this if the section is going to be allocated,
	       since unallocated sections do not contribute to the region's
	       overall size in memory.
	       
	       If the SEC_NEVER_LOAD bit is not set, it will affect the
	       addresses of sections after it. We have to update
	       dot.  */
	    if (os->region != (lang_memory_region_type *) NULL
		&& ((bfd_get_section_flags (output_bfd, os->bfd_section)
		     & SEC_NEVER_LOAD) == 0
		    || (bfd_get_section_flags (output_bfd, os->bfd_section)
			& (SEC_ALLOC | SEC_LOAD))))
	      {
		os->region->current = dot;
		
		/* Make sure the new address is within the region.  */
                os_region_check (os, os->region, os->addr_tree, 
                                 os->bfd_section->vma);

                /* if there's no load address specified, use the run region as
                   the load region */
                if (os->lma_region == NULL && os->load_base == NULL)
                    os->lma_region = os->region;

                if (os->lma_region != NULL)
                  {
                    if (os->load_base != NULL)
                      {
                        einfo (_("%X%P: use an absolute load address or a load memory region, not both\n"));
                      }
                    else
                      {
                        /* don't allocate twice */
                        if (os->lma_region != os->region)
                          {
                            /* set load_base, which will be handled later */
                            os->load_base = exp_intop (os->lma_region->current);
                            os->lma_region->current += 
                              os->bfd_section->_raw_size / opb;
                            os_region_check (os, os->lma_region, NULL,
                                             os->bfd_section->lma);
                          }
                      }
                  }
	      }
	  }
	  break;

	case lang_constructors_statement_enum:
	  dot = lang_size_sections (constructor_list.head,
				    output_section_statement,
				    &s->wild_statement.children.head,
				    fill,
				    dot, relax);
	  break;

	case lang_data_statement_enum:
	  {
	    unsigned int size = 0;

	    s->data_statement.output_vma = dot - output_section_statement->bfd_section->vma;
	    s->data_statement.output_section =
	      output_section_statement->bfd_section;

	    switch (s->data_statement.type)
	      {
              default:
                abort();
	      case QUAD:
	      case SQUAD:
		size = QUAD_SIZE;
		break;
	      case LONG:
		size = LONG_SIZE;
		break;
	      case SHORT:
		size = SHORT_SIZE;
		break;
	      case BYTE:
		size = BYTE_SIZE;
		break;
	      }
            if (size < opb)
              size = opb;
	    dot += size / opb;
	    output_section_statement->bfd_section->_raw_size += size;
	    /* The output section gets contents, and then we inspect for
	       any flags set in the input script which override any ALLOC.  */
	    output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS;
	    if (!(output_section_statement->flags & SEC_NEVER_LOAD)) {
	      output_section_statement->bfd_section->flags |= SEC_ALLOC | SEC_LOAD;
	    }
	  }
	  break;

	case lang_reloc_statement_enum:
	  {
	    int size;

	    s->reloc_statement.output_vma =
	      dot - output_section_statement->bfd_section->vma;
	    s->reloc_statement.output_section =
	      output_section_statement->bfd_section;
	    size = bfd_get_reloc_size (s->reloc_statement.howto);
	    dot += size / opb;
	    output_section_statement->bfd_section->_raw_size += size;
	  }
	  break;
     
	case lang_wild_statement_enum:

	  dot = lang_size_sections (s->wild_statement.children.head,
				    output_section_statement,
				    &s->wild_statement.children.head,

				    fill, dot, relax);

	  break;

	case lang_object_symbols_statement_enum:
	  link_info.create_object_symbols_section =
	    output_section_statement->bfd_section;
	  break;
	case lang_output_statement_enum:
	case lang_target_statement_enum:
	  break;
	case lang_input_section_enum:
	  {
	    asection *i;

	    i = (*prev)->input_section.section;
	    if (! relax)
	      {
		if (i->_cooked_size == 0)
		  i->_cooked_size = i->_raw_size;
	      }
	    else
	      {
		boolean again;

		if (! bfd_relax_section (i->owner, i, &link_info, &again))
		  einfo (_("%P%F: can't relax section: %E\n"));
		if (again)
		  relax_again = true;
	      }
	    dot = size_input_section (prev,
				      output_section_statement,
				      output_section_statement->fill,
				      dot, relax);
	  }
	  break;
	case lang_input_statement_enum:
	  break;
	case lang_fill_statement_enum:
	  s->fill_statement.output_section = output_section_statement->bfd_section;

	  fill = s->fill_statement.fill;
	  break;
	case lang_assignment_statement_enum:
	  {
	    bfd_vma newdot = dot;

	    exp_fold_tree (s->assignment_statement.exp,
			   output_section_statement,
			   lang_allocating_phase_enum,
			   dot,
			   &newdot);

	    if (newdot != dot)
	      {
		/* The assignment changed dot.  Insert a pad.  */
		if (output_section_statement == abs_output_section)
		  {
		    /* If we don't have an output section, then just adjust
		       the default memory address.  */
		    lang_memory_region_lookup ("*default*")->current = newdot;
		  }
		else if (!relax)
		  {
		    lang_statement_union_type *new =
		      ((lang_statement_union_type *)
		       stat_alloc (sizeof (lang_padding_statement_type)));

		    /* Link into existing chain.  */
		    new->header.next = *prev;
		    *prev = new;
		    new->header.type = lang_padding_statement_enum;
		    new->padding_statement.output_section =
		      output_section_statement->bfd_section;
		    new->padding_statement.output_offset =
		      dot - output_section_statement->bfd_section->vma;
		    new->padding_statement.fill = fill;
		    new->padding_statement.size = (newdot - dot) * opb;
		    output_section_statement->bfd_section->_raw_size +=
		      new->padding_statement.size;
		  }

		dot = newdot;
	      }
	  }
	  break;

	case lang_padding_statement_enum:
	  /* If we are relaxing, and this is not the first pass, some
	     padding statements may have been inserted during previous
	     passes.  We may have to move the padding statement to a new
	     location if dot has a different value at this point in this
	     pass than it did at this point in the previous pass.  */
	  s->padding_statement.output_offset =
	    dot - output_section_statement->bfd_section->vma;
	  dot += s->padding_statement.size / opb;
	  output_section_statement->bfd_section->_raw_size +=
	    s->padding_statement.size;
	  break;

	case lang_group_statement_enum:
	  dot = lang_size_sections (s->group_statement.children.head,
				    output_section_statement,
				    &s->group_statement.children.head,
				    fill, dot, relax);
	  break;

	default:
	  FAIL ();
	  break;

	  /* This can only get here when relaxing is turned on.  */

	case lang_address_statement_enum:
	  break;
	}
      prev = &s->header.next;
    }
  return dot;
}

bfd_vma
lang_do_assignments (s, output_section_statement, fill, dot)
     lang_statement_union_type * s;
     lang_output_section_statement_type * output_section_statement;
     fill_type fill;
     bfd_vma dot;
{
  unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
						ldfile_output_machine); 

  for (; s != (lang_statement_union_type *) NULL; s = s->next)
    {
      switch (s->header.type)
	{
	case lang_constructors_statement_enum:
	  dot = lang_do_assignments (constructor_list.head,
				     output_section_statement,
				     fill,
				     dot);
	  break;

	case lang_output_section_statement_enum:
	  {
	    lang_output_section_statement_type *os =
	      &(s->output_section_statement);

	    if (os->bfd_section != NULL)
	      {
		dot = os->bfd_section->vma;
		(void) lang_do_assignments (os->children.head, os,
					    os->fill, dot);
		dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb;

	      }
	    if (os->load_base) 
	      {
		/* If nothing has been placed into the output section then
		   it won't have a bfd_section. */
		if (os->bfd_section) 
		  {
		    os->bfd_section->lma 
		      = exp_get_abs_int(os->load_base, 0,"load base", lang_final_phase_enum);
		  }
	      }
	  }
	  break;
	case lang_wild_statement_enum:

	  dot = lang_do_assignments (s->wild_statement.children.head,
				     output_section_statement,
				     fill, dot);

	  break;

	case lang_object_symbols_statement_enum:
	case lang_output_statement_enum:
	case lang_target_statement_enum:
#if 0
	case lang_common_statement_enum:
#endif
	  break;
	case lang_data_statement_enum:
	  {
	    etree_value_type value;

	    value = exp_fold_tree (s->data_statement.exp,
				   abs_output_section,
				   lang_final_phase_enum, dot, &dot);
	    s->data_statement.value = value.value;
	    if (value.valid_p == false)
	      einfo (_("%F%P: invalid data statement\n"));
	  }
          {
            unsigned int size;
            switch (s->data_statement.type)
              {
              default:
                abort();
              case QUAD:
              case SQUAD:
                size = QUAD_SIZE;
                break;
              case LONG:
                size = LONG_SIZE;
                break;
              case SHORT:
                size = SHORT_SIZE;
                break;
              case BYTE:
                size = BYTE_SIZE;
                break;
              }
            if (size < opb)
              size = opb;
            dot += size / opb;
          }
	  break;

	case lang_reloc_statement_enum:
	  {
	    etree_value_type value;

	    value = exp_fold_tree (s->reloc_statement.addend_exp,
				   abs_output_section,
				   lang_final_phase_enum, dot, &dot);
	    s->reloc_statement.addend_value = value.value;
	    if (value.valid_p == false)
	      einfo (_("%F%P: invalid reloc statement\n"));
	  }
	  dot += bfd_get_reloc_size (s->reloc_statement.howto) / opb;
	  break;

	case lang_input_section_enum:
	  {
	    asection *in = s->input_section.section;

	    if (in->_cooked_size != 0)
	      dot += in->_cooked_size / opb;
	    else
	      dot += in->_raw_size / opb;
	  }
	  break;

	case lang_input_statement_enum:
	  break;
	case lang_fill_statement_enum:
	  fill = s->fill_statement.fill;
	  break;
	case lang_assignment_statement_enum:
	  {
	    exp_fold_tree (s->assignment_statement.exp,
			   output_section_statement,
			   lang_final_phase_enum,
			   dot,
			   &dot);
	  }

	  break;
	case lang_padding_statement_enum:
	  dot += s->padding_statement.size / opb;
	  break;

	case lang_group_statement_enum:
	  dot = lang_do_assignments (s->group_statement.children.head,
				     output_section_statement,
				     fill, dot);

	  break;

	default:
	  FAIL ();
	  break;
	case lang_address_statement_enum:
	  break;
	}

    }
  return dot;
}

/* Fix any .startof. or .sizeof. symbols.  When the assemblers see the
   operator .startof. (section_name), it produces an undefined symbol
   .startof.section_name.  Similarly, when it sees
   .sizeof. (section_name), it produces an undefined symbol
   .sizeof.section_name.  For all the output sections, we look for
   such symbols, and set them to the correct value.  */

static void
lang_set_startof ()
{
  asection *s;

  if (link_info.relocateable)
    return;

  for (s = output_bfd->sections; s != NULL; s = s->next)
    {
      const char *secname;
      char *buf;
      struct bfd_link_hash_entry *h;

      secname = bfd_get_section_name (output_bfd, s);
      buf = xmalloc (10 + strlen (secname));

      sprintf (buf, ".startof.%s", secname);
      h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true);
      if (h != NULL && h->type == bfd_link_hash_undefined)
	{
	  h->type = bfd_link_hash_defined;
	  h->u.def.value = bfd_get_section_vma (output_bfd, s);
	  h->u.def.section = bfd_abs_section_ptr;
	}

      sprintf (buf, ".sizeof.%s", secname);
      h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true);
      if (h != NULL && h->type == bfd_link_hash_undefined)
	{
          unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
							ldfile_output_machine);
	  h->type = bfd_link_hash_defined;
	  if (s->_cooked_size != 0)
	    h->u.def.value = s->_cooked_size / opb;
	  else
	    h->u.def.value = s->_raw_size / opb;
	  h->u.def.section = bfd_abs_section_ptr;
	}

      free (buf);
    }
}

static void
lang_finish ()
{
  struct bfd_link_hash_entry *h;
  boolean warn;

  if (link_info.relocateable || link_info.shared)
    warn = false;
  else
    warn = true;

  if (entry_symbol == (char *) NULL)
    {
      /* No entry has been specified.  Look for start, but don't warn
	 if we don't find it.  */
      entry_symbol = "start";
      warn = false;
    }

  h = bfd_link_hash_lookup (link_info.hash, entry_symbol, false, false, true);
  if (h != (struct bfd_link_hash_entry *) NULL
      && (h->type == bfd_link_hash_defined
	  || h->type == bfd_link_hash_defweak)
      && h->u.def.section->output_section != NULL)
    {
      bfd_vma val;

      val = (h->u.def.value
	     + bfd_get_section_vma (output_bfd,
				    h->u.def.section->output_section)
	     + h->u.def.section->output_offset);
      if (! bfd_set_start_address (output_bfd, val))
	einfo (_("%P%F:%s: can't set start address\n"), entry_symbol);
    }
  else
    {
      bfd_vma val;
      CONST char *send;

      /* We couldn't find the entry symbol.  Try parsing it as a
         number.  */
      val = bfd_scan_vma (entry_symbol, &send, 0);
      if (*send == '\0')
	{
	  if (! bfd_set_start_address (output_bfd, val))
	    einfo (_("%P%F: can't set start address\n"));
	}
      else
	{
	  asection *ts;

	  /* Can't find the entry symbol, and it's not a number.  Use
	     the first address in the text section.  */
	  ts = bfd_get_section_by_name (output_bfd, ".text");
	  if (ts != (asection *) NULL)
	    {
	      if (warn)
		einfo (_("%P: warning: cannot find entry symbol %s; defaulting to %V\n"),
		       entry_symbol, bfd_get_section_vma (output_bfd, ts));
	      if (! bfd_set_start_address (output_bfd,
					   bfd_get_section_vma (output_bfd,
								ts)))
		einfo (_("%P%F: can't set start address\n"));
	    }
	  else
	    {
	      if (warn)
		einfo (_("%P: warning: cannot find entry symbol %s; not setting start address\n"),
		       entry_symbol);
	    }
	}
    }
}

/* This is a small function used when we want to ignore errors from
   BFD.  */

static void
#ifdef ANSI_PROTOTYPES
ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED, ...)
#else
ignore_bfd_errors (s)
     const char *s ATTRIBUTE_UNUSED;
#endif
{
  /* Don't do anything.  */
}

/* Check that the architecture of all the input files is compatible
   with the output file.  Also call the backend to let it do any
   other checking that is needed.  */

static void
lang_check ()
{
  lang_statement_union_type *file;
  bfd *input_bfd;
  CONST bfd_arch_info_type *compatible;

  for (file = file_chain.head;
       file != (lang_statement_union_type *) NULL;
       file = file->input_statement.next)
    {
      input_bfd = file->input_statement.the_bfd;
      compatible = bfd_arch_get_compatible (input_bfd,
					    output_bfd);
      if (compatible == NULL)
	{
	  if (command_line.warn_mismatch)
	    einfo (_("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n"),
		   bfd_printable_name (input_bfd), input_bfd,
		   bfd_printable_name (output_bfd));
	}
      else
	{
	  bfd_error_handler_type pfn = NULL;

	  /* If we aren't supposed to warn about mismatched input
             files, temporarily set the BFD error handler to a
             function which will do nothing.  We still want to call
             bfd_merge_private_bfd_data, since it may set up
             information which is needed in the output file.  */
	  if (! command_line.warn_mismatch)
	    pfn = bfd_set_error_handler (ignore_bfd_errors);
	  if (! bfd_merge_private_bfd_data (input_bfd, output_bfd))
	    {
	      if (command_line.warn_mismatch)
		einfo (_("%E%X: failed to merge target specific data of file %B\n"),
		       input_bfd);
	    }
	  if (! command_line.warn_mismatch)
	    bfd_set_error_handler (pfn);
	}
    }
}

/* Look through all the global common symbols and attach them to the
   correct section.  The -sort-common command line switch may be used
   to roughly sort the entries by size.  */

static void
lang_common ()
{
  if (link_info.relocateable
      && ! command_line.force_common_definition)
    return;

  if (! config.sort_common)
    bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL);
  else
    {
      int power;

      for (power = 4; power >= 0; power--)
	bfd_link_hash_traverse (link_info.hash, lang_one_common,
				(PTR) &power);
    }
}

/* Place one common symbol in the correct section.  */

static boolean
lang_one_common (h, info)
     struct bfd_link_hash_entry *h;
     PTR info;
{
  unsigned int power_of_two;
  bfd_vma size;
  asection *section;
  unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, 
						ldfile_output_machine); 

  if (h->type != bfd_link_hash_common)
    return true;

  size = h->u.c.size;
  power_of_two = h->u.c.p->alignment_power;

  if (config.sort_common
      && power_of_two < (unsigned int) *(int *) info)
    return true;

  section = h->u.c.p->section;

  /* Increase the size of the section.  */
  section->_cooked_size = ALIGN_N ((section->_cooked_size + opb - 1) / opb,
				   (bfd_size_type) (1 << power_of_two)) * opb;

  /* Adjust the alignment if necessary.  */
  if (power_of_two > section->alignment_power)
    section->alignment_power = power_of_two;

  /* Change the symbol from common to defined.  */
  h->type = bfd_link_hash_defined;
  h->u.def.section = section;
  h->u.def.value = section->_cooked_size;

  /* Increase the size of the section.  */
  section->_cooked_size += size;

  /* Make sure the section is allocated in memory, and make sure that
     it is no longer a common section.  */
  section->flags |= SEC_ALLOC;
  section->flags &= ~ SEC_IS_COMMON;

  if (config.map_file != NULL)
    {
      static boolean header_printed;
      int len;
      char *name;
      char buf[50];

      if (! header_printed)
	{
	  minfo (_("\nAllocating common symbols\n"));
	  minfo (_("Common symbol       size              file\n\n"));
	  header_printed = true;
	}

      name = demangle (h->root.string);
      minfo ("%s", name);
      len = strlen (name);
      free (name);

      if (len >= 19)
	{
	  print_nl ();
	  len = 0;
	}
      while (len < 20)
	{
	  print_space ();
	  ++len;
	}

      minfo ("0x");
      if (size <= 0xffffffff)
	sprintf (buf, "%lx", (unsigned long) size);
      else
	sprintf_vma (buf, size);
      minfo ("%s", buf);
      len = strlen (buf);

      while (len < 16)
	{
	  print_space ();
	  ++len;
	}

      minfo ("%B\n", section->owner);
    }

  return true;
}

/*
run through the input files and ensure that every input
section has somewhere to go. If one is found without
a destination then create an input request and place it
into the statement tree.
*/

static void
lang_place_orphans ()
{
  LANG_FOR_EACH_INPUT_STATEMENT (file)
    {
      asection *s;

      for (s = file->the_bfd->sections;
	   s != (asection *) NULL;
	   s = s->next)
	{
	  if (s->output_section == (asection *) NULL)
	    {
	      /* This section of the file is not attatched, root
	         around for a sensible place for it to go */

	      if (file->just_syms_flag)
		{
		  /* We are only retrieving symbol values from this
                     file.  We want the symbols to act as though the
                     values in the file are absolute.  */
		  s->output_section = bfd_abs_section_ptr;
		  s->output_offset = s->vma;
		}
	      else if (strcmp (s->name, "COMMON") == 0)
		{
		  /* This is a lonely common section which must have
		     come from an archive.  We attach to the section
		     with the wildcard.  */
		  if (! link_info.relocateable
		      || command_line.force_common_definition)
		    {
		      if (default_common_section == NULL)
			{
#if 0
			  /* This message happens when using the
                             svr3.ifile linker script, so I have
                             disabled it.  */
			  info_msg (_("%P: no [COMMON] command, defaulting to .bss\n"));
#endif
			  default_common_section =
			    lang_output_section_statement_lookup (".bss");

			}
		      wild_doit (&default_common_section->children, s,
				 default_common_section, file);
		    }
		}
	      else if (ldemul_place_orphan (file, s))
		;
	      else
		{
		  lang_output_section_statement_type *os =
		  lang_output_section_statement_lookup (s->name);

		  wild_doit (&os->children, s, os, file);
		}
	    }
	}
    }
}


void
lang_set_flags (ptr, flags, invert)
     lang_memory_region_type *ptr;
     CONST char *flags;
     int invert;
{
  flagword *ptr_flags;

  ptr_flags = invert ? &ptr->not_flags : &ptr->flags;
  while (*flags)
    {
      switch (*flags)
	{
	case 'A': case 'a':
	  *ptr_flags |= SEC_ALLOC;
	  break;

	case 'R': case 'r':
	  *ptr_flags |= SEC_READONLY;
	  break;

	case 'W': case 'w':
	  *ptr_flags |= SEC_DATA;
	  break;

	case 'X': case 'x':
	  *ptr_flags |= SEC_CODE;
	  break;

	case 'L': case 'l':
	case 'I': case 'i':
	  *ptr_flags |= SEC_LOAD;
	  break;

	default:
	  einfo (_("%P%F: invalid syntax in flags\n"));
	  break;
	}
      flags++;
    }
}

/* Call a function on each input file.  This function will be called
   on an archive, but not on the elements.  */

void
lang_for_each_input_file (func)
     void (*func) PARAMS ((lang_input_statement_type *));
{
  lang_input_statement_type *f;

  for (f = (lang_input_statement_type *) input_file_chain.head;
       f != NULL;
       f = (lang_input_statement_type *) f->next_real_file)
    func (f);
}

/* Call a function on each file.  The function will be called on all
   the elements of an archive which are included in the link, but will
   not be called on the archive file itself.  */

void
lang_for_each_file (func)
     void (*func) PARAMS ((lang_input_statement_type *));
{
  LANG_FOR_EACH_INPUT_STATEMENT (f)
    {
      func (f);
    }
}

#if 0

/* Not used.  */

void
lang_for_each_input_section (func)
     void (*func) PARAMS ((bfd * ab, asection * as));
{
  LANG_FOR_EACH_INPUT_STATEMENT (f)
    {
      asection * s;

      for (s = f->the_bfd->sections;
	   s != (asection *) NULL;
	   s = s->next)
	{
	  func (f->the_bfd, s);
	}
    }
}

#endif

void
ldlang_add_file (entry)
     lang_input_statement_type * entry;
{
  bfd **pp;

  lang_statement_append (&file_chain,
			 (lang_statement_union_type *) entry,
			 &entry->next);

  /* The BFD linker needs to have a list of all input BFDs involved in
     a link.  */
  ASSERT (entry->the_bfd->link_next == (bfd *) NULL);
  ASSERT (entry->the_bfd != output_bfd);
  for (pp = &link_info.input_bfds;
       *pp != (bfd *) NULL;
       pp = &(*pp)->link_next)
    ;
  *pp = entry->the_bfd;
  entry->the_bfd->usrdata = (PTR) entry;
  bfd_set_gp_size (entry->the_bfd, g_switch_value);

  /* Look through the sections and check for any which should not be
     included in the link.  We need to do this now, so that we can
     notice when the backend linker tries to report multiple
     definition errors for symbols which are in sections we aren't
     going to link.  FIXME: It might be better to entirely ignore
     symbols which are defined in sections which are going to be
     discarded.  This would require modifying the backend linker for
     each backend which might set the SEC_LINK_ONCE flag.  If we do
     this, we should probably handle SEC_EXCLUDE in the same way.  */

  bfd_map_over_sections (entry->the_bfd, section_already_linked, (PTR) entry);
}

void
lang_add_output (name, from_script)
     CONST char *name;
     int from_script;
{
  /* Make -o on command line override OUTPUT in script.  */
  if (had_output_filename == false || !from_script)
    {
      output_filename = name;
      had_output_filename = true;
    }
}


static lang_output_section_statement_type *current_section;

static int
topower (x)
     int x;
{
  unsigned int i = 1;
  int l;

  if (x < 0)
    return -1;

  for (l = 0; l < 32; l++) 
    {
      if (i >= (unsigned int) x)
	return l;
      i <<= 1;
    }

  return 0;
}

lang_output_section_statement_type *
lang_enter_output_section_statement (output_section_statement_name,
				     address_exp, sectype, block_value,
				     align, subalign, ebase)
     const char *output_section_statement_name;
     etree_type * address_exp;
     enum section_type sectype;
     bfd_vma block_value;
     etree_type *align;
     etree_type *subalign;
     etree_type *ebase;
{
  lang_output_section_statement_type *os;

  current_section =
   os =
    lang_output_section_statement_lookup (output_section_statement_name);



  /* Add this statement to tree */
  /*  add_statement(lang_output_section_statement_enum,
      output_section_statement);*/
  /* Make next things chain into subchain of this */

  if (os->addr_tree ==
      (etree_type *) NULL)
  {
    os->addr_tree =
     address_exp;
  }
  os->sectype = sectype;
  if (sectype != noload_section)
    os->flags = SEC_NO_FLAGS;
  else
    os->flags = SEC_NEVER_LOAD;
  os->block_value = block_value ? block_value : 1;
  stat_ptr = &os->children;

  os->subsection_alignment = topower(
   exp_get_value_int(subalign, -1,
		     "subsection alignment",
		     0));
  os->section_alignment = topower(
   exp_get_value_int(align, -1,
		     "section alignment", 0));

  os->load_base = ebase;
  return os;
}


void
lang_final ()
{
  lang_output_statement_type *new =
    new_stat (lang_output_statement, stat_ptr);

  new->name = output_filename;
}

/* Reset the current counters in the regions */
static void
reset_memory_regions ()
{
  lang_memory_region_type *p = lang_memory_region_list;

  for (p = lang_memory_region_list;
       p != (lang_memory_region_type *) NULL;
       p = p->next)
    {
      p->old_length = (bfd_size_type) (p->current - p->origin);
      p->current = p->origin;
    }
}

/* Expand a wild statement for a particular FILE, marking its sections KEEP
   as needed.  SECTION may be NULL, in which case it is a wild card.  */

static void
gc_section_callback (ptr, section, file, data)
     lang_wild_statement_type *ptr;
     asection *section;
     lang_input_statement_type *file ATTRIBUTE_UNUSED;
     void *data ATTRIBUTE_UNUSED;
{
  /* If the wild pattern was marked KEEP, the member sections
     should be as well.  */
  if (ptr->keep_sections)
    section->flags |= SEC_KEEP;
}

/* Handle a wild statement, marking it against GC.  SECTION or FILE or both
   may be NULL, indicating that it is a wildcard.  */

static void
lang_gc_wild (s, section, file)
     lang_wild_statement_type *s;
     const char *section;
     const char *file;
{
  walk_wild (s, section, file, gc_section_callback, NULL);
}

/* Iterate over sections marking them against GC.  */

static void
lang_gc_sections_1 (s)
     lang_statement_union_type * s;
{
  for (; s != (lang_statement_union_type *) NULL; s = s->next)
    {
      switch (s->header.type)
	{
	case lang_wild_statement_enum:
	  lang_gc_wild (&s->wild_statement,
			s->wild_statement.section_name,
			s->wild_statement.filename);
	  break;
	case lang_constructors_statement_enum:
	  lang_gc_sections_1 (constructor_list.head);
	  break;
	case lang_output_section_statement_enum:
	  lang_gc_sections_1 (s->output_section_statement.children.head);
	  break;
	case lang_group_statement_enum:
	  lang_gc_sections_1 (s->group_statement.children.head);
	  break;
	default:
	  break;
	}
    }
}

static void
lang_gc_sections ()
{
  struct bfd_link_hash_entry *h;
  ldlang_undef_chain_list_type *ulist, fake_list_start;

  /* Keep all sections so marked in the link script.  */

  lang_gc_sections_1 (statement_list.head);

  /* Keep all sections containing symbols undefined on the command-line.
     Handle the entry symbol at the same time.  */
  
  if (entry_symbol != NULL)
    {
      fake_list_start.next = ldlang_undef_chain_list_head;
      fake_list_start.name = (char *) entry_symbol;
      ulist = &fake_list_start;
    }
  else
    ulist = ldlang_undef_chain_list_head;

  for (; ulist; ulist = ulist->next)
    {
      h = bfd_link_hash_lookup (link_info.hash, ulist->name, 
				false, false, false);

      if (h != (struct bfd_link_hash_entry *) NULL
          && (h->type == bfd_link_hash_defined
              || h->type == bfd_link_hash_defweak)
	  && ! bfd_is_abs_section (h->u.def.section))
	{
	  h->u.def.section->flags |= SEC_KEEP;
	}
    }

  bfd_gc_sections (output_bfd, &link_info);
}

void
lang_process ()
{
  lang_reasonable_defaults ();
  current_target = default_target;

  lang_for_each_statement (ldlang_open_output);	/* Open the output file */

  ldemul_create_output_section_statements ();

  /* Add to the hash table all undefineds on the command line */
  lang_place_undefineds ();

  already_linked_table_init ();

  /* Create a bfd for each input file */
  current_target = default_target;
  open_input_bfds (statement_list.head, false);

  ldemul_after_open ();

  already_linked_table_free ();

  /* Make sure that we're not mixing architectures.  We call this
     after all the input files have been opened, but before we do any
     other processing, so that any operations merge_private_bfd_data
     does on the output file will be known during the rest of the
     link.  */
  lang_check ();

  /* Handle .exports instead of a version script if we're told to do so.  */
  if (command_line.version_exports_section)
    lang_do_version_exports_section ();

  /* Build all sets based on the information gathered from the input
     files.  */
  ldctor_build_sets ();

  /* Remove unreferenced sections if asked to.  */
  if (command_line.gc_sections)
    lang_gc_sections ();

  /* Size up the common data */
  lang_common ();

  /* Run through the contours of the script and attach input sections
     to the correct output sections
     */
  map_input_to_output_sections (statement_list.head, (char *) NULL,
				(lang_output_section_statement_type *) NULL);


  /* Find any sections not attached explicitly and handle them */
  lang_place_orphans ();

  ldemul_before_allocation ();

  /* We must record the program headers before we try to fix the
     section positions, since they will affect SIZEOF_HEADERS.  */
  lang_record_phdrs ();

  /* Now run around and relax if we can */
  if (command_line.relax)
    {
      /* First time round is a trial run to get the 'worst case'
	 addresses of the objects if there was no relaxing.  */
      lang_size_sections (statement_list.head,
			  abs_output_section,
			  &(statement_list.head), 0, (bfd_vma) 0, false);

      /* Keep relaxing until bfd_relax_section gives up.  */
      do
	{
	  reset_memory_regions ();

	  relax_again = false;

	  /* Note: pe-dll.c does something like this also.  If you find
	     you need to change this code, you probably need to change
	     pe-dll.c also.  DJ */

	  /* Do all the assignments with our current guesses as to
	     section sizes.  */
	  lang_do_assignments (statement_list.head,
			       abs_output_section,
			       (fill_type) 0, (bfd_vma) 0);

	  /* Perform another relax pass - this time we know where the
	     globals are, so can make better guess.  */
	  lang_size_sections (statement_list.head,
			      abs_output_section,
			      &(statement_list.head), 0, (bfd_vma) 0, true);
	}
      while (relax_again);
    }
  else
    {
      /* Size up the sections.  */
      lang_size_sections (statement_list.head,
			  abs_output_section,
			  &(statement_list.head), 0, (bfd_vma) 0, false);
    }

  /* See if anything special should be done now we know how big
     everything is.  */
  ldemul_after_allocation ();

  /* Fix any .startof. or .sizeof. symbols.  */
  lang_set_startof ();

  /* Do all the assignments, now that we know the final restingplaces
     of all the symbols */

  lang_do_assignments (statement_list.head,
		       abs_output_section,
		       (fill_type) 0, (bfd_vma) 0);

  /* Make sure that the section addresses make sense.  */
  if (! link_info.relocateable
      && command_line.check_section_addresses)
    lang_check_section_addresses ();
  
  /* Final stuffs */

  ldemul_finish ();
  lang_finish ();
}

/* EXPORTED TO YACC */

void
lang_add_wild (section_name, sections_sorted, filename, filenames_sorted,
	       keep_sections, exclude_filename_list)
     const char *const section_name;
     boolean sections_sorted;
     const char *const filename;
     boolean filenames_sorted;
     boolean keep_sections;
     struct name_list *exclude_filename_list;
{
  lang_wild_statement_type *new = new_stat (lang_wild_statement,
					    stat_ptr);

  if (section_name != (char *) NULL && strcmp (section_name, "COMMON") == 0)
    {
      placed_commons = true;
    }
  if (filename != NULL && ! wildcardp (filename))
    {
      lang_has_input_file = true;
    }
  new->section_name = section_name;
  new->sections_sorted = sections_sorted;
  new->filename = filename;
  new->filenames_sorted = filenames_sorted;
  new->keep_sections = keep_sections;
  new->exclude_filename_list = exclude_filename_list;
  lang_list_init (&new->children);
}

void
lang_section_start (name, address)
     CONST char *name;
     etree_type * address;
{
  lang_address_statement_type *ad = new_stat (lang_address_statement, stat_ptr);

  ad->section_name = name;
  ad->address = address;
}

/* Set the start symbol to NAME.  CMDLINE is nonzero if this is called
   because of a -e argument on the command line, or zero if this is
   called by ENTRY in a linker script.  Command line arguments take
   precedence.  */

void
lang_add_entry (name, cmdline)
     CONST char *name;
     boolean cmdline;
{
  if (entry_symbol == NULL
      || cmdline
      || ! entry_from_cmdline)
    {
      entry_symbol = name;
      entry_from_cmdline = cmdline;
    }
}

void
lang_add_target (name)
     CONST char *name;
{
  lang_target_statement_type *new = new_stat (lang_target_statement,
					      stat_ptr);

  new->target = name;

}

void
lang_add_map (name)
     CONST char *name;
{
  while (*name)
    {
      switch (*name)
	{
	  case 'F':
	  map_option_f = true;
	  break;
	}
      name++;
    }
}

void
lang_add_fill (exp)
     int exp;
{
  lang_fill_statement_type *new = new_stat (lang_fill_statement,
					    stat_ptr);

  new->fill = exp;
}

void
lang_add_data (type, exp)
     int type;
     union etree_union *exp;
{

  lang_data_statement_type *new = new_stat (lang_data_statement,
					    stat_ptr);

  new->exp = exp;
  new->type = type;

}

/* Create a new reloc statement.  RELOC is the BFD relocation type to
   generate.  HOWTO is the corresponding howto structure (we could
   look this up, but the caller has already done so).  SECTION is the
   section to generate a reloc against, or NAME is the name of the
   symbol to generate a reloc against.  Exactly one of SECTION and
   NAME must be NULL.  ADDEND is an expression for the addend.  */

void
lang_add_reloc (reloc, howto, section, name, addend)
     bfd_reloc_code_real_type reloc;
     reloc_howto_type *howto;
     asection *section;
     const char *name;
     union etree_union *addend;
{
  lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr);
  
  p->reloc = reloc;
  p->howto = howto;
  p->section = section;
  p->name = name;
  p->addend_exp = addend;

  p->addend_value = 0;
  p->output_section = NULL;
  p->output_vma = 0;
}

lang_assignment_statement_type *
lang_add_assignment (exp)
     etree_type * exp;
{
  lang_assignment_statement_type *new = new_stat (lang_assignment_statement,
						  stat_ptr);

  new->exp = exp;
  return new;
}

void
lang_add_attribute (attribute)
     enum statement_enum attribute;
{
  new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr);
}

void
lang_startup (name)
     CONST char *name;
{
  if (startup_file != (char *) NULL)
    {
      einfo (_("%P%Fmultiple STARTUP files\n"));
    }
  first_file->filename = name;
  first_file->local_sym_name = name;
  first_file->real = true;

  startup_file = name;
}

void
lang_float (maybe)
     boolean maybe;
{
  lang_float_flag = maybe;
}

void
lang_leave_output_section_statement (fill, memspec, phdrs, lma_memspec)
     bfd_vma fill;
     const char *memspec;
     struct lang_output_section_phdr_list *phdrs;
     const char *lma_memspec;
{
  current_section->fill = fill;
  current_section->region = lang_memory_region_lookup (memspec);
  if (strcmp (lma_memspec, "*default*") != 0)
    {
      current_section->lma_region = lang_memory_region_lookup (lma_memspec);
      /* if no runtime region has been given, but the load region has been,
         use the load region */
      if (strcmp (memspec, "*default*") == 0)
        current_section->region = lang_memory_region_lookup (lma_memspec);
    }
  current_section->phdrs = phdrs;
  stat_ptr = &statement_list;
}

/*
 Create an absolute symbol with the given name with the value of the
 address of first byte of the section named.

 If the symbol already exists, then do nothing.
*/
void
lang_abs_symbol_at_beginning_of (secname, name)
     const char *secname;
     const char *name;
{
  struct bfd_link_hash_entry *h;

  h = bfd_link_hash_lookup (link_info.hash, name, true, true, true);
  if (h == (struct bfd_link_hash_entry *) NULL)
    einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));

  if (h->type == bfd_link_hash_new
      || h->type == bfd_link_hash_undefined)
    {
      asection *sec;

      h->type = bfd_link_hash_defined;

      sec = bfd_get_section_by_name (output_bfd, secname);
      if (sec == (asection *) NULL)
	h->u.def.value = 0;
      else
	h->u.def.value = bfd_get_section_vma (output_bfd, sec);

      h->u.def.section = bfd_abs_section_ptr;
    }
}

/*
 Create an absolute symbol with the given name with the value of the
 address of the first byte after the end of the section named.

 If the symbol already exists, then do nothing.
*/
void
lang_abs_symbol_at_end_of (secname, name)
     const char *secname;
     const char *name;
{
  struct bfd_link_hash_entry *h;

  h = bfd_link_hash_lookup (link_info.hash, name, true, true, true);
  if (h == (struct bfd_link_hash_entry *) NULL)
    einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));

  if (h->type == bfd_link_hash_new
      || h->type == bfd_link_hash_undefined)
    {
      asection *sec;

      h->type = bfd_link_hash_defined;

      sec = bfd_get_section_by_name (output_bfd, secname);
      if (sec == (asection *) NULL)
	h->u.def.value = 0;
      else
	h->u.def.value = (bfd_get_section_vma (output_bfd, sec)
			  + bfd_section_size (output_bfd, sec) /
                          bfd_octets_per_byte (output_bfd));

      h->u.def.section = bfd_abs_section_ptr;
    }
}

void
lang_statement_append (list, element, field)
     lang_statement_list_type * list;
     lang_statement_union_type * element;
     lang_statement_union_type ** field;
{
  *(list->tail) = element;
  list->tail = field;
}

/* Set the output format type.  -oformat overrides scripts.  */

void
lang_add_output_format (format, big, little, from_script)
     const char *format;
     const char *big;
     const char *little;
     int from_script;
{
  if (output_target == NULL || !from_script)
    {
      if (command_line.endian == ENDIAN_BIG
	  && big != NULL)
	format = big;
      else if (command_line.endian == ENDIAN_LITTLE
	       && little != NULL)
	format = little;

      output_target = format;
    }
}

/* Enter a group.  This creates a new lang_group_statement, and sets
   stat_ptr to build new statements within the group.  */

void
lang_enter_group ()
{
  lang_group_statement_type *g;

  g = new_stat (lang_group_statement, stat_ptr);
  lang_list_init (&g->children);
  stat_ptr = &g->children;
}

/* Leave a group.  This just resets stat_ptr to start writing to the
   regular list of statements again.  Note that this will not work if
   groups can occur inside anything else which can adjust stat_ptr,
   but currently they can't.  */

void
lang_leave_group ()
{
  stat_ptr = &statement_list;
}

/* Add a new program header.  This is called for each entry in a PHDRS
   command in a linker script.  */

void
lang_new_phdr (name, type, filehdr, phdrs, at, flags)
     const char *name;
     etree_type *type;
     boolean filehdr;
     boolean phdrs;
     etree_type *at;
     etree_type *flags;
{
  struct lang_phdr *n, **pp;

  n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr));
  n->next = NULL;
  n->name = name;
  n->type = exp_get_value_int (type, 0, "program header type",
			       lang_final_phase_enum);
  n->filehdr = filehdr;
  n->phdrs = phdrs;
  n->at = at;
  n->flags = flags;

  for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next)
    ;
  *pp = n;
}

/* Record the program header information in the output BFD.  FIXME: We
   should not be calling an ELF specific function here.  */

static void
lang_record_phdrs ()
{
  unsigned int alc;
  asection **secs;
  struct lang_output_section_phdr_list *last;
  struct lang_phdr *l;
  lang_statement_union_type *u;

  alc = 10;
  secs = (asection **) xmalloc (alc * sizeof (asection *));
  last = NULL;
  for (l = lang_phdr_list; l != NULL; l = l->next)
    {
      unsigned int c;
      flagword flags;
      bfd_vma at;

      c = 0;
      for (u = lang_output_section_statement.head;
	   u != NULL;
	   u = u->output_section_statement.next)
	{
	  lang_output_section_statement_type *os;
	  struct lang_output_section_phdr_list *pl;

	  os = &u->output_section_statement;

	  pl = os->phdrs;
	  if (pl != NULL)
	    last = pl;
	  else
	    {
	      if (os->sectype == noload_section
		  || os->bfd_section == NULL
		  || (os->bfd_section->flags & SEC_ALLOC) == 0)
		continue;
	      pl = last;
	    }

	  if (os->bfd_section == NULL)
	    continue;

	  for (; pl != NULL; pl = pl->next)
	    {
	      if (strcmp (pl->name, l->name) == 0)
		{
		  if (c >= alc)
		    {
		      alc *= 2;
		      secs = ((asection **)
			      xrealloc (secs, alc * sizeof (asection *)));
		    }
		  secs[c] = os->bfd_section;
		  ++c;
		  pl->used = true;
		}
	    }
	}

      if (l->flags == NULL)
	flags = 0;
      else
	flags = exp_get_vma (l->flags, 0, "phdr flags",
			     lang_final_phase_enum);

      if (l->at == NULL)
	at = 0;
      else
	at = exp_get_vma (l->at, 0, "phdr load address",
			  lang_final_phase_enum);

      if (! bfd_record_phdr (output_bfd, l->type,
			     l->flags == NULL ? false : true,
			     flags,
			     l->at == NULL ? false : true,
			     at, l->filehdr, l->phdrs, c, secs))
	einfo (_("%F%P: bfd_record_phdr failed: %E\n"));
    }

  free (secs);

  /* Make sure all the phdr assignments succeeded.  */
  for (u = lang_output_section_statement.head;
       u != NULL;
       u = u->output_section_statement.next)
    {
      struct lang_output_section_phdr_list *pl;

      if (u->output_section_statement.bfd_section == NULL)
	continue;

      for (pl = u->output_section_statement.phdrs;
	   pl != NULL;
	   pl = pl->next)
	if (! pl->used && strcmp (pl->name, "NONE") != 0)
	  einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n"),
		 u->output_section_statement.name, pl->name);
    }
}

/* Record a list of sections which may not be cross referenced.  */

void
lang_add_nocrossref (l)
     struct lang_nocrossref *l;
{
  struct lang_nocrossrefs *n;

  n = (struct lang_nocrossrefs *) xmalloc (sizeof *n);
  n->next = nocrossref_list;
  n->list = l;
  nocrossref_list = n;

  /* Set notice_all so that we get informed about all symbols.  */
  link_info.notice_all = true;
}

/* Overlay handling.  We handle overlays with some static variables.  */

/* The overlay virtual address.  */
static etree_type *overlay_vma;

/* The overlay load address.  */
static etree_type *overlay_lma;

/* Whether nocrossrefs is set for this overlay.  */
static int overlay_nocrossrefs;

/* An expression for the maximum section size seen so far.  */
static etree_type *overlay_max;

/* A list of all the sections in this overlay.  */

struct overlay_list
{
  struct overlay_list *next;
  lang_output_section_statement_type *os;
};

static struct overlay_list *overlay_list;

/* Start handling an overlay.  */

void
lang_enter_overlay (vma_expr, lma_expr, nocrossrefs)
     etree_type *vma_expr;
     etree_type *lma_expr;
     int nocrossrefs;
{
  /* The grammar should prevent nested overlays from occurring.  */
  ASSERT (overlay_vma == NULL
	  && overlay_lma == NULL
	  && overlay_list == NULL
	  && overlay_max == NULL);

  overlay_vma = vma_expr;
  overlay_lma = lma_expr;
  overlay_nocrossrefs = nocrossrefs;
}

/* Start a section in an overlay.  We handle this by calling
   lang_enter_output_section_statement with the correct VMA and LMA.  */

void
lang_enter_overlay_section (name)
     const char *name;
{
  struct overlay_list *n;
  etree_type *size;

  lang_enter_output_section_statement (name, overlay_vma, normal_section,
				       0, 0, 0, overlay_lma);

  /* If this is the first section, then base the VMA and LMA of future
     sections on this one.  This will work correctly even if `.' is
     used in the addresses.  */
  if (overlay_list == NULL)
    {
      overlay_vma = exp_nameop (ADDR, name);
      overlay_lma = exp_nameop (LOADADDR, name);
    }

  /* Remember the section.  */
  n = (struct overlay_list *) xmalloc (sizeof *n);
  n->os = current_section;
  n->next = overlay_list;
  overlay_list = n;

  size = exp_nameop (SIZEOF, name);

  /* Adjust the LMA for the next section.  */
  overlay_lma = exp_binop ('+', overlay_lma, size);

  /* Arrange to work out the maximum section end address.  */
  if (overlay_max == NULL)
    overlay_max = size;
  else
    overlay_max = exp_binop (MAX_K, overlay_max, size);
}

/* Finish a section in an overlay.  There isn't any special to do
   here.  */

void
lang_leave_overlay_section (fill, phdrs)
     bfd_vma fill;
     struct lang_output_section_phdr_list *phdrs;
{
  const char *name;
  char *clean, *s2;
  const char *s1;
  char *buf;

  name = current_section->name;

  lang_leave_output_section_statement (fill, "*default*", 
                                       phdrs, "*default*");

  /* Define the magic symbols.  */

  clean = xmalloc (strlen (name) + 1);
  s2 = clean;
  for (s1 = name; *s1 != '\0'; s1++)
    if (isalnum ((unsigned char) *s1) || *s1 == '_')
      *s2++ = *s1;
  *s2 = '\0';

  buf = xmalloc (strlen (clean) + sizeof "__load_start_");
  sprintf (buf, "__load_start_%s", clean);
  lang_add_assignment (exp_assop ('=', buf,
				  exp_nameop (LOADADDR, name)));

  buf = xmalloc (strlen (clean) + sizeof "__load_stop_");
  sprintf (buf, "__load_stop_%s", clean);
  lang_add_assignment (exp_assop ('=', buf,
				  exp_binop ('+',
					     exp_nameop (LOADADDR, name),
					     exp_nameop (SIZEOF, name))));

  free (clean);
}

/* Finish an overlay.  If there are any overlay wide settings, this
   looks through all the sections in the overlay and sets them.  */

void
lang_leave_overlay (fill, memspec, phdrs, lma_memspec)
     bfd_vma fill;
     const char *memspec;
     struct lang_output_section_phdr_list *phdrs;
     const char *lma_memspec;
{
  lang_memory_region_type *region;
  lang_memory_region_type *lma_region;
  struct overlay_list *l;
  struct lang_nocrossref *nocrossref;

  if (memspec == NULL)
    region = NULL;
  else
    region = lang_memory_region_lookup (memspec);

  if (lma_memspec == NULL)
    lma_region = NULL;
  else
    lma_region = lang_memory_region_lookup (lma_memspec);

  nocrossref = NULL;

  l = overlay_list;
  while (l != NULL)
    {
      struct overlay_list *next;

      if (fill != 0 && l->os->fill == 0)
	l->os->fill = fill;
      if (region != NULL && l->os->region == NULL)
	l->os->region = region;
      if (lma_region != NULL && l->os->lma_region == NULL)
        l->os->lma_region = lma_region;
      if (phdrs != NULL && l->os->phdrs == NULL)
	l->os->phdrs = phdrs;

      if (overlay_nocrossrefs)
	{
	  struct lang_nocrossref *nc;

	  nc = (struct lang_nocrossref *) xmalloc (sizeof *nc);
	  nc->name = l->os->name;
	  nc->next = nocrossref;
	  nocrossref = nc;
	}

      next = l->next;
      free (l);
      l = next;
    }

  if (nocrossref != NULL)
    lang_add_nocrossref (nocrossref);

  /* Update . for the end of the overlay.  */
  lang_add_assignment (exp_assop ('=', ".",
				  exp_binop ('+', overlay_vma, overlay_max)));

  overlay_vma = NULL;
  overlay_lma = NULL;
  overlay_nocrossrefs = 0;
  overlay_list = NULL;
  overlay_max = NULL;
}

/* Version handling.  This is only useful for ELF.  */

/* This global variable holds the version tree that we build.  */

struct bfd_elf_version_tree *lang_elf_version_info;

static int
lang_vers_match_lang_c (expr, sym)
     struct bfd_elf_version_expr *expr;
     const char *sym;
{
  if (expr->pattern[0] == '*' && expr->pattern[1] == '\0')
    return 1;
  return fnmatch (expr->pattern, sym, 0) == 0;
}

static int
lang_vers_match_lang_cplusplus (expr, sym)
     struct bfd_elf_version_expr *expr;
     const char *sym;
{
  char *alt_sym;
  int result;

  if (expr->pattern[0] == '*' && expr->pattern[1] == '\0')
    return 1;

  alt_sym = cplus_demangle(sym, /* DMGL_NO_TPARAMS */ 0);
  if (!alt_sym)
    {
      /* cplus_demangle (also) returns NULL when it is not a C++ symbol.
	 Should we early out false in this case?  */
      result = fnmatch (expr->pattern, sym, 0) == 0;
    }
  else
    {
      result = fnmatch (expr->pattern, alt_sym, 0) == 0;
      free (alt_sym);
    }

  return result;
}

static int
lang_vers_match_lang_java (expr, sym)
     struct bfd_elf_version_expr *expr;
     const char *sym;
{
  char *alt_sym;
  int result;

  if (expr->pattern[0] == '*' && expr->pattern[1] == '\0')
    return 1;

  alt_sym = cplus_demangle(sym, DMGL_JAVA);
  if (!alt_sym)
    {
      /* cplus_demangle (also) returns NULL when it is not a Java symbol.
	 Should we early out false in this case?  */
      result = fnmatch (expr->pattern, sym, 0) == 0;
    }
  else
    {
      result = fnmatch (expr->pattern, alt_sym, 0) == 0;
      free (alt_sym);
    }

  return result;
}

/* This is called for each variable name or match expression.  */

struct bfd_elf_version_expr *
lang_new_vers_regex (orig, new, lang)
     struct bfd_elf_version_expr *orig;
     const char *new;
     const char *lang;
{
  struct bfd_elf_version_expr *ret;

  ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret);
  ret->next = orig;
  ret->pattern = new;

  if (lang == NULL || strcasecmp (lang, "C") == 0)
    ret->match = lang_vers_match_lang_c;
  else if (strcasecmp (lang, "C++") == 0)
    ret->match = lang_vers_match_lang_cplusplus;
  else if (strcasecmp (lang, "Java") == 0)
    ret->match = lang_vers_match_lang_java;
  else
    {
      einfo (_("%X%P: unknown language `%s' in version information\n"),
	     lang);
      ret->match = lang_vers_match_lang_c;
    }

  return ret;
}

/* This is called for each set of variable names and match
   expressions.  */

struct bfd_elf_version_tree *
lang_new_vers_node (globals, locals)
     struct bfd_elf_version_expr *globals;
     struct bfd_elf_version_expr *locals;
{
  struct bfd_elf_version_tree *ret;

  ret = (struct bfd_elf_version_tree *) xmalloc (sizeof *ret);
  ret->next = NULL;
  ret->name = NULL;
  ret->vernum = 0;
  ret->globals = globals;
  ret->locals = locals;
  ret->deps = NULL;
  ret->name_indx = (unsigned int) -1;
  ret->used = 0;
  return ret;
}

/* This static variable keeps track of version indices.  */

static int version_index;

/* This is called when we know the name and dependencies of the
   version.  */

void
lang_register_vers_node (name, version, deps)
     const char *name;
     struct bfd_elf_version_tree *version;
     struct bfd_elf_version_deps *deps;
{
  struct bfd_elf_version_tree *t, **pp;
  struct bfd_elf_version_expr *e1;

  /* Make sure this node has a unique name.  */
  for (t = lang_elf_version_info; t != NULL; t = t->next)
    if (strcmp (t->name, name) == 0)
      einfo (_("%X%P: duplicate version tag `%s'\n"), name);

  /* Check the global and local match names, and make sure there
     aren't any duplicates.  */

  for (e1 = version->globals; e1 != NULL; e1 = e1->next)
    {
      for (t = lang_elf_version_info; t != NULL; t = t->next)
	{
	  struct bfd_elf_version_expr *e2;

	  for (e2 = t->locals; e2 != NULL; e2 = e2->next)
	    if (strcmp (e1->pattern, e2->pattern) == 0)
	      einfo (_("%X%P: duplicate expression `%s' in version information\n"),
		     e1->pattern);
	}
    }

  for (e1 = version->locals; e1 != NULL; e1 = e1->next)
    {
      for (t = lang_elf_version_info; t != NULL; t = t->next)
	{
	  struct bfd_elf_version_expr *e2;

	  for (e2 = t->globals; e2 != NULL; e2 = e2->next)
	    if (strcmp (e1->pattern, e2->pattern) == 0)
	      einfo (_("%X%P: duplicate expression `%s' in version information\n"),
		     e1->pattern);
	}
    }

  version->deps = deps;
  version->name = name;
  ++version_index;
  version->vernum = version_index;

  for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next)
    ;
  *pp = version;
}

/* This is called when we see a version dependency.  */

struct bfd_elf_version_deps *
lang_add_vers_depend (list, name)
     struct bfd_elf_version_deps *list;
     const char *name;
{
  struct bfd_elf_version_deps *ret;
  struct bfd_elf_version_tree *t;

  ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret);
  ret->next = list;

  for (t = lang_elf_version_info; t != NULL; t = t->next)
    {
      if (strcmp (t->name, name) == 0)
	{
	  ret->version_needed = t;
	  return ret;
	}
    }

  einfo (_("%X%P: unable to find version dependency `%s'\n"), name);

  return ret;
}

static void
lang_do_version_exports_section ()
{
  struct bfd_elf_version_expr *greg = NULL, *lreg;

  LANG_FOR_EACH_INPUT_STATEMENT (is)
    {
      asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports");
      char *contents, *p;
      bfd_size_type len;

      if (sec == NULL)
        continue;

      len = bfd_section_size (is->the_bfd, sec);
      contents = xmalloc (len);
      if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len))
	einfo (_("%X%P: unable to read .exports section contents"), sec);

      p = contents;
      while (p < contents+len)
	{
	  greg = lang_new_vers_regex (greg, p, NULL);
	  p = strchr (p, '\0') + 1;
	}

      /* Do not free the contents, as we used them creating the regex.  */

      /* Do not include this section in the link.  */
      bfd_set_section_flags (is->the_bfd, sec,
	bfd_get_section_flags (is->the_bfd, sec) | SEC_EXCLUDE);
    }

  lreg = lang_new_vers_regex (NULL, "*", NULL);
  lang_register_vers_node (command_line.version_exports_section,
			   lang_new_vers_node (greg, lreg), NULL);
}