summaryrefslogtreecommitdiff
path: root/gdb/symtab.c
blob: 58da78976536b7695e9203da3a520bf2c687d778 (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
/* Symbol table lookup for the GNU debugger, GDB.
   Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
             Free Software Foundation, Inc.

This file is part of GDB.

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

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "gdbcore.h"
#include "frame.h"
#include "target.h"
#include "value.h"
#include "symfile.h"
#include "objfiles.h"
#include "gdbcmd.h"
#include "call-cmds.h"
#include "gnu-regex.h"
#include "expression.h"
#include "language.h"
#include "demangle.h"
#include "inferior.h"

#include "obstack.h"

#include <sys/types.h>
#include <fcntl.h>
#include "gdb_string.h"
#include "gdb_stat.h"
#include <ctype.h>

/* Prototype for one function in parser-defs.h,
   instead of including that entire file. */

extern char * find_template_name_end PARAMS ((char *));

/* Prototypes for local functions */

static int find_methods PARAMS ((struct type *, char *, struct symbol **));

static void completion_list_add_name PARAMS ((char *, char *, int, char *, 
                                              char *));

static void build_canonical_line_spec PARAMS ((struct symtab_and_line *, 
                                               char *, char ***));

static struct symtabs_and_lines decode_line_2 PARAMS ((struct symbol *[], 
                                                       int, int, char ***));

static void rbreak_command PARAMS ((char *, int));

static void types_info PARAMS ((char *, int));

static void functions_info PARAMS ((char *, int));

static void variables_info PARAMS ((char *, int));

static void sources_info PARAMS ((char *, int));

static void output_source_filename PARAMS ((char *, int *));

char *operator_chars PARAMS ((char *, char **));

static int find_line_common PARAMS ((struct linetable *, int, int *));

static struct partial_symbol *lookup_partial_symbol PARAMS 
                                  ((struct partial_symtab *, const char *,
			            int, namespace_enum));

static struct partial_symbol *fixup_psymbol_section PARAMS ((struct 
                                        partial_symbol *, struct objfile *));

static struct symtab *lookup_symtab_1 PARAMS ((char *));

static void cplusplus_hint PARAMS ((char *));

static struct symbol *find_active_alias PARAMS ((struct symbol *sym, 
                                                 CORE_ADDR addr));

/* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
/* Signals the presence of objects compiled by HP compilers */
int hp_som_som_object_present = 0;

static void fixup_section PARAMS ((struct general_symbol_info *, 
                                   struct objfile *));

static int file_matches PARAMS ((char *, char **, int));

static void print_symbol_info PARAMS ((namespace_enum, 
                                       struct symtab *, struct symbol *, 
                                       int, char *));

static void print_msymbol_info PARAMS ((struct minimal_symbol *));

static void symtab_symbol_info PARAMS ((char *, namespace_enum, int));

static void overload_list_add_symbol PARAMS ((struct symbol *sym,
					      char *oload_name));

void _initialize_symtab PARAMS ((void));

/* */

/* The single non-language-specific builtin type */
struct type *builtin_type_error;

/* Block in which the most recently searched-for symbol was found.
   Might be better to make this a parameter to lookup_symbol and 
   value_of_this. */

const struct block *block_found;

char no_symtab_msg[] = "No symbol table is loaded.  Use the \"file\" command.";

/* While the C++ support is still in flux, issue a possibly helpful hint on
   using the new command completion feature on single quoted demangled C++
   symbols.  Remove when loose ends are cleaned up.   FIXME -fnf */

static void
cplusplus_hint (name)
     char *name;
{
  while (*name == '\'')
    name++;
  printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name);
  printf_filtered ("(Note leading single quote.)\n");
}

/* Check for a symtab of a specific name; first in symtabs, then in
   psymtabs.  *If* there is no '/' in the name, a match after a '/'
   in the symtab filename will also work.  */

static struct symtab *
lookup_symtab_1 (name)
     char *name;
{
  register struct symtab *s;
  register struct partial_symtab *ps;
  register char *slash;
  register struct objfile *objfile;

 got_symtab:

  /* First, search for an exact match */

  ALL_SYMTABS (objfile, s)
    if (STREQ (name, s->filename))
      return s;

  slash = strchr (name, '/');

  /* Now, search for a matching tail (only if name doesn't have any dirs) */

  if (!slash)
    ALL_SYMTABS (objfile, s)
      {
	char *p = s -> filename;
	char *tail = strrchr (p, '/');

	if (tail)
	  p = tail + 1;

	if (STREQ (p, name))
	  return s;
      }

  /* Same search rules as above apply here, but now we look thru the
     psymtabs.  */

  ps = lookup_partial_symtab (name);
  if (!ps)
    return (NULL);

  if (ps -> readin)
    error ("Internal: readin %s pst for `%s' found when no symtab found.",
	   ps -> filename, name);

  s = PSYMTAB_TO_SYMTAB (ps);

  if (s)
    return s;

  /* At this point, we have located the psymtab for this file, but
     the conversion to a symtab has failed.  This usually happens
     when we are looking up an include file.  In this case,
     PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
     been created.  So, we need to run through the symtabs again in
     order to find the file.
     XXX - This is a crock, and should be fixed inside of the the
     symbol parsing routines. */
  goto got_symtab;
}

/* Lookup the symbol table of a source file named NAME.  Try a couple
   of variations if the first lookup doesn't work.  */

struct symtab *
lookup_symtab (name)
     char *name;
{
  register struct symtab *s;
#if 0
  register char *copy;
#endif

  s = lookup_symtab_1 (name);
  if (s) return s;

#if 0
  /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab
     "tree.c".  */

  /* If name not found as specified, see if adding ".c" helps.  */
  /* Why is this?  Is it just a user convenience?  (If so, it's pretty
     questionable in the presence of C++, FORTRAN, etc.).  It's not in
     the GDB manual.  */

  copy = (char *) alloca (strlen (name) + 3);
  strcpy (copy, name);
  strcat (copy, ".c");
  s = lookup_symtab_1 (copy);
  if (s) return s;
#endif /* 0 */

  /* We didn't find anything; die.  */
  return 0;
}

/* Lookup the partial symbol table of a source file named NAME.
   *If* there is no '/' in the name, a match after a '/'
   in the psymtab filename will also work.  */

struct partial_symtab *
lookup_partial_symtab (name)
char *name;
{
  register struct partial_symtab *pst;
  register struct objfile *objfile;
  
  ALL_PSYMTABS (objfile, pst)
    {
      if (STREQ (name, pst -> filename))
	{
	  return (pst);
	}
    }

  /* Now, search for a matching tail (only if name doesn't have any dirs) */

  if (!strchr (name, '/'))
    ALL_PSYMTABS (objfile, pst)
      {
	char *p = pst -> filename;
	char *tail = strrchr (p, '/');

	if (tail)
	  p = tail + 1;

	if (STREQ (p, name))
	  return (pst);
      }

  return (NULL);
}

/* Mangle a GDB method stub type.  This actually reassembles the pieces of the
   full method name, which consist of the class name (from T), the unadorned
   method name from METHOD_ID, and the signature for the specific overload,
   specified by SIGNATURE_ID.  Note that this function is g++ specific. */

char *
gdb_mangle_name (type, method_id, signature_id)
     struct type *type;
     int method_id, signature_id;
{
  int mangled_name_len;
  char *mangled_name;
  struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id);
  struct fn_field *method = &f[signature_id];
  char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id);
  char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id);
  char *newname = type_name_no_tag (type);

  /* Does the form of physname indicate that it is the full mangled name
     of a constructor (not just the args)?  */
  int is_full_physname_constructor;

  int is_constructor;
  int is_destructor = DESTRUCTOR_PREFIX_P (physname);
  /* Need a new type prefix.  */
  char *const_prefix = method->is_const ? "C" : "";
  char *volatile_prefix = method->is_volatile ? "V" : "";
  char buf[20];
  int len = (newname == NULL ? 0 : strlen (newname));

  is_full_physname_constructor = 
    ((physname[0]=='_' && physname[1]=='_' && 
      (isdigit(physname[2]) || physname[2]=='Q' || physname[2]=='t'))
     || (strncmp(physname, "__ct", 4) == 0));

  is_constructor =
    is_full_physname_constructor || (newname && STREQ(field_name, newname));

  if (!is_destructor)
    is_destructor = (strncmp(physname, "__dt", 4) == 0); 

  if (is_destructor || is_full_physname_constructor)
    {
      mangled_name = (char*) xmalloc(strlen(physname)+1);
      strcpy(mangled_name, physname);
      return mangled_name;
    }

  if (len == 0)
    {
      sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
    }
  else if (physname[0] == 't' || physname[0] == 'Q')
    {
      /* The physname for template and qualified methods already includes
	 the class name.  */
      sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
      newname = NULL;
      len = 0;
    }
  else
    {
      sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len);
    }
  mangled_name_len = ((is_constructor ? 0 : strlen (field_name))
			  + strlen (buf) + len
			  + strlen (physname)
			  + 1);

  /* Only needed for GNU-mangled names.  ANSI-mangled names
     work with the normal mechanisms.  */
  if (OPNAME_PREFIX_P (field_name))
    {
      const char *opname = cplus_mangle_opname (field_name + 3, 0);
      if (opname == NULL)
	error ("No mangling for \"%s\"", field_name);
      mangled_name_len += strlen (opname);
      mangled_name = (char *)xmalloc (mangled_name_len);

      strncpy (mangled_name, field_name, 3);
      mangled_name[3] = '\0';
      strcat (mangled_name, opname);
    }
  else
    {
      mangled_name = (char *)xmalloc (mangled_name_len);
      if (is_constructor)
	mangled_name[0] = '\0';
      else
	strcpy (mangled_name, field_name);
    }
  strcat (mangled_name, buf);
  /* If the class doesn't have a name, i.e. newname NULL, then we just
     mangle it using 0 for the length of the class.  Thus it gets mangled
     as something starting with `::' rather than `classname::'. */ 
  if (newname != NULL)
    strcat (mangled_name, newname);

  strcat (mangled_name, physname);
  return (mangled_name);
}



/* Find which partial symtab on contains PC and SECTION.  Return 0 if none.  */

struct partial_symtab *
find_pc_sect_psymtab (pc, section)
     CORE_ADDR pc;
     asection *section;
{
  register struct partial_symtab *pst;
  register struct objfile *objfile;

  ALL_PSYMTABS (objfile, pst)
    {
#if defined(HPUXHPPA)
      if (pc >= pst->textlow && pc <= pst->texthigh)
#else
      if (pc >= pst->textlow && pc < pst->texthigh)
#endif
	{
	  struct minimal_symbol *msymbol;
	  struct partial_symtab *tpst;

	  /* An objfile that has its functions reordered might have
	     many partial symbol tables containing the PC, but
	     we want the partial symbol table that contains the
	     function containing the PC.  */
	  if (!(objfile->flags & OBJF_REORDERED) &&
	      section == 0)	/* can't validate section this way */
	    return (pst);

	  msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
	  if (msymbol == NULL)
	    return (pst);

	  for (tpst = pst; tpst != NULL; tpst = tpst->next)
	    {
#if defined(HPUXHPPA)
	      if (pc >= tpst->textlow && pc <= tpst->texthigh)
#else
	      if (pc >= tpst->textlow && pc < tpst->texthigh)
#endif
		{
		  struct partial_symbol *p;

		  p = find_pc_sect_psymbol (tpst, pc, section);
		  if (p != NULL
		      && SYMBOL_VALUE_ADDRESS(p)
			 == SYMBOL_VALUE_ADDRESS (msymbol))
		    return (tpst);
		}
	    }
	  return (pst);
	}
    }
  return (NULL);
}

/* Find which partial symtab contains PC.  Return 0 if none. 
   Backward compatibility, no section */

struct partial_symtab *
find_pc_psymtab (pc)
     CORE_ADDR pc;
{
  return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc));
}

/* Find which partial symbol within a psymtab matches PC and SECTION.  
   Return 0 if none.  Check all psymtabs if PSYMTAB is 0.  */

struct partial_symbol *
find_pc_sect_psymbol (psymtab, pc, section)
     struct partial_symtab *psymtab;
     CORE_ADDR pc;
     asection *section;
{
  struct partial_symbol *best = NULL, *p, **pp;
  CORE_ADDR best_pc;
  
  if (!psymtab)
    psymtab = find_pc_sect_psymtab (pc, section);
  if (!psymtab)
    return 0;

  /* Cope with programs that start at address 0 */
  best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0;

  /* Search the global symbols as well as the static symbols, so that
     find_pc_partial_function doesn't use a minimal symbol and thus
     cache a bad endaddr.  */
  for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset;
       (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset)
	< psymtab->n_global_syms);
       pp++)
    {
      p = *pp;
      if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
	  && SYMBOL_CLASS (p) == LOC_BLOCK
	  && pc >= SYMBOL_VALUE_ADDRESS (p)
	  && (SYMBOL_VALUE_ADDRESS (p) > best_pc
	      || (psymtab->textlow == 0
		  && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
	{
	  if (section)	/* match on a specific section */
	    {
	      fixup_psymbol_section (p, psymtab->objfile);
	      if (SYMBOL_BFD_SECTION (p) != section)
		continue;
	    }
	  best_pc = SYMBOL_VALUE_ADDRESS (p);
	  best = p;
	}
    }

  for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset;
       (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset)
	< psymtab->n_static_syms);
       pp++)
    {
      p = *pp;
      if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
	  && SYMBOL_CLASS (p) == LOC_BLOCK
	  && pc >= SYMBOL_VALUE_ADDRESS (p)
	  && (SYMBOL_VALUE_ADDRESS (p) > best_pc
	      || (psymtab->textlow == 0 
		  && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
	{
	  if (section)	/* match on a specific section */
	    {
	      fixup_psymbol_section (p, psymtab->objfile);
	      if (SYMBOL_BFD_SECTION (p) != section)
		continue;
	    }
	  best_pc = SYMBOL_VALUE_ADDRESS (p);
	  best = p;
	}
    }

  return best;
}

/* Find which partial symbol within a psymtab matches PC.  Return 0 if none.  
   Check all psymtabs if PSYMTAB is 0.  Backwards compatibility, no section. */

struct partial_symbol *
find_pc_psymbol (psymtab, pc)
     struct partial_symtab *psymtab;
     CORE_ADDR pc;
{
  return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc));
}

/* Debug symbols usually don't have section information.  We need to dig that
   out of the minimal symbols and stash that in the debug symbol.  */

static void
fixup_section (ginfo, objfile)
     struct general_symbol_info *ginfo;
     struct objfile *objfile;
{
  struct minimal_symbol *msym;
  msym = lookup_minimal_symbol (ginfo->name, NULL, objfile);

  if (msym)
    ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
}

struct symbol *
fixup_symbol_section (sym, objfile)
     struct symbol *sym;
     struct objfile *objfile;
{
  if (!sym)
    return NULL;

  if (SYMBOL_BFD_SECTION (sym))
    return sym;

  fixup_section (&sym->ginfo, objfile);

  return sym;
}

static struct partial_symbol *
fixup_psymbol_section (psym, objfile)
     struct partial_symbol *psym;
     struct objfile *objfile;
{
  if (!psym)
    return NULL;

  if (SYMBOL_BFD_SECTION (psym))
    return psym;

  fixup_section (&psym->ginfo, objfile);

  return psym;
}

/* Find the definition for a specified symbol name NAME
   in namespace NAMESPACE, visible from lexical block BLOCK.
   Returns the struct symbol pointer, or zero if no symbol is found.
   If SYMTAB is non-NULL, store the symbol table in which the
   symbol was found there, or NULL if not found.
   C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
   NAME is a field of the current implied argument `this'.  If so set
   *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. 
   BLOCK_FOUND is set to the block in which NAME is found (in the case of
   a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */

/* This function has a bunch of loops in it and it would seem to be
   attractive to put in some QUIT's (though I'm not really sure
   whether it can run long enough to be really important).  But there
   are a few calls for which it would appear to be bad news to quit
   out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
   nindy_frame_chain_valid in nindy-tdep.c.  (Note that there is C++
   code below which can error(), but that probably doesn't affect
   these calls since they are looking for a known variable and thus
   can probably assume it will never hit the C++ code).  */

struct symbol *
lookup_symbol (name, block, namespace, is_a_field_of_this, symtab)
     const char *name;
     register const struct block *block;
     const namespace_enum namespace;
     int *is_a_field_of_this;
     struct symtab **symtab;
{
  register struct symbol *sym;
  register struct symtab *s = NULL;
  register struct partial_symtab *ps;
  struct blockvector *bv;
  register struct objfile *objfile = NULL;
  register struct block *b;
  register struct minimal_symbol *msymbol;

  /* Search specified block and its superiors.  */

  while (block != 0)
    {
      sym = lookup_block_symbol (block, name, namespace);
      if (sym) 
	{
	  block_found = block;
	  if (symtab != NULL)
	    {
	      /* Search the list of symtabs for one which contains the
		 address of the start of this block.  */
	      ALL_SYMTABS (objfile, s)
		{
		  bv = BLOCKVECTOR (s);
		  b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
		  if (BLOCK_START (b) <= BLOCK_START (block)
		      && BLOCK_END (b) > BLOCK_START (block))
		    goto found;
		}
found:
	      *symtab = s;
	    }

	  return fixup_symbol_section (sym, objfile);
	}
      block = BLOCK_SUPERBLOCK (block);
    }

  /* FIXME: this code is never executed--block is always NULL at this
     point.  What is it trying to do, anyway?  We already should have
     checked the STATIC_BLOCK above (it is the superblock of top-level
     blocks).  Why is VAR_NAMESPACE special-cased?  */
  /* Don't need to mess with the psymtabs; if we have a block,
     that file is read in.  If we don't, then we deal later with
     all the psymtab stuff that needs checking.  */
  /* Note (RT): The following never-executed code looks unnecessary to me also.
   * If we change the code to use the original (passed-in)
   * value of 'block', we could cause it to execute, but then what
   * would it do? The STATIC_BLOCK of the symtab containing the passed-in
   * 'block' was already searched by the above code. And the STATIC_BLOCK's
   * of *other* symtabs (those files not containing 'block' lexically)
   * should not contain 'block' address-wise. So we wouldn't expect this
   * code to find any 'sym''s that were not found above. I vote for 
   * deleting the following paragraph of code.
   */
  if (namespace == VAR_NAMESPACE && block != NULL)
    {
      struct block *b;
      /* Find the right symtab.  */
      ALL_SYMTABS (objfile, s)
	{
	  bv = BLOCKVECTOR (s);
	  b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
	  if (BLOCK_START (b) <= BLOCK_START (block)
	      && BLOCK_END (b) > BLOCK_START (block))
	    {
	      sym = lookup_block_symbol (b, name, VAR_NAMESPACE);
	      if (sym)
		{
		  block_found = b;
		  if (symtab != NULL)
		    *symtab = s;
		  return fixup_symbol_section (sym, objfile);
		}
	    }
	}
    }


  /* C++: If requested to do so by the caller, 
     check to see if NAME is a field of `this'. */
  if (is_a_field_of_this)
    {
      struct value *v = value_of_this (0);
      
      *is_a_field_of_this = 0;
      if (v && check_field (v, name))
	{
	  *is_a_field_of_this = 1;
	  if (symtab != NULL)
	    *symtab = NULL;
	  return NULL;
	}
    }

  /* Now search all global blocks.  Do the symtab's first, then
     check the psymtab's. If a psymtab indicates the existence
     of the desired name as a global, then do psymtab-to-symtab
     conversion on the fly and return the found symbol. */
  
  ALL_SYMTABS (objfile, s)
    {
      bv = BLOCKVECTOR (s);
      block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
      sym = lookup_block_symbol (block, name, namespace);
      if (sym) 
	{
	  block_found = block;
	  if (symtab != NULL)
	    *symtab = s;
	  return fixup_symbol_section (sym, objfile);
	}
    }

#ifndef HPUXHPPA

  /* Check for the possibility of the symbol being a function or
     a mangled variable that is stored in one of the minimal symbol tables.
     Eventually, all global symbols might be resolved in this way.  */
  
  if (namespace == VAR_NAMESPACE)
    {
      msymbol = lookup_minimal_symbol (name, NULL, NULL);
      if (msymbol != NULL)
	{
	  s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol),
				  SYMBOL_BFD_SECTION (msymbol));
	  if (s != NULL)
	    {
	      /* This is a function which has a symtab for its address.  */
	      bv = BLOCKVECTOR (s);
	      block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
	      sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
					 namespace);
              /* We kept static functions in minimal symbol table as well as
		 in static scope. We want to find them in the symbol table. */
		if (!sym) {
		  block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
		  sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
					     namespace);
		}

	      /* sym == 0 if symbol was found in the minimal symbol table
		 but not in the symtab.
		 Return 0 to use the msymbol definition of "foo_".

		 This happens for Fortran  "foo_" symbols,
		 which are "foo" in the symtab.

		 This can also happen if "asm" is used to make a
		 regular symbol but not a debugging symbol, e.g.
		 asm(".globl _main");
		 asm("_main:");
		 */

	      if (symtab != NULL)
		*symtab = s;
	      return fixup_symbol_section (sym, objfile);
	    }
	  else if (MSYMBOL_TYPE (msymbol) != mst_text
		   && MSYMBOL_TYPE (msymbol) != mst_file_text
		   && !STREQ (name, SYMBOL_NAME (msymbol)))
	    {
	      /* This is a mangled variable, look it up by its
		 mangled name.  */
	      return lookup_symbol (SYMBOL_NAME (msymbol), block, 
				    namespace, is_a_field_of_this, symtab);
	    }
	  /* There are no debug symbols for this file, or we are looking
	     for an unmangled variable.
	     Try to find a matching static symbol below. */
	}
    }
      
#endif

  ALL_PSYMTABS (objfile, ps)
    {
      if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace))
	{
	  s = PSYMTAB_TO_SYMTAB(ps);
	  bv = BLOCKVECTOR (s);
	  block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
	  sym = lookup_block_symbol (block, name, namespace);
	  if (!sym)
            {
              /* This shouldn't be necessary, but as a last resort
               * try looking in the statics even though the psymtab
               * claimed the symbol was global. It's possible that
               * the psymtab gets it wrong in some cases.
               */
	      block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
	      sym = lookup_block_symbol (block, name, namespace);
              if (!sym)
	        error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
%s may be an inlined function, or may be a template function\n\
(if a template, try specifying an instantiation: %s<type>).",
                       name, ps->filename, name, name);
            }
	  if (symtab != NULL)
	    *symtab = s;
	  return fixup_symbol_section (sym, objfile);
	}
    }

  /* Now search all static file-level symbols.
     Not strictly correct, but more useful than an error.
     Do the symtabs first, then check the psymtabs.
     If a psymtab indicates the existence
     of the desired name as a file-level static, then do psymtab-to-symtab
     conversion on the fly and return the found symbol. */

  ALL_SYMTABS (objfile, s)
    {
      bv = BLOCKVECTOR (s);
      block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
      sym = lookup_block_symbol (block, name, namespace);
      if (sym) 
	{
	  block_found = block;
	  if (symtab != NULL)
	    *symtab = s;
	  return fixup_symbol_section (sym, objfile);
	}
    }

  ALL_PSYMTABS (objfile, ps)
    {
      if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace))
	{
	  s = PSYMTAB_TO_SYMTAB(ps);
	  bv = BLOCKVECTOR (s);
	  block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
	  sym = lookup_block_symbol (block, name, namespace);
	  if (!sym)
            {
              /* This shouldn't be necessary, but as a last resort
               * try looking in the globals even though the psymtab
               * claimed the symbol was static. It's possible that
               * the psymtab gets it wrong in some cases.
               */
	      block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
	      sym = lookup_block_symbol (block, name, namespace);
              if (!sym)
                error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
%s may be an inlined function, or may be a template function\n\
(if a template, try specifying an instantiation: %s<type>).",
                       name, ps->filename, name, name);
            }
	  if (symtab != NULL)
	    *symtab = s;
	  return fixup_symbol_section (sym, objfile);
	}
    }

#ifdef HPUXHPPA

  /* Check for the possibility of the symbol being a function or
     a global variable that is stored in one of the minimal symbol tables.
     The "minimal symbol table" is built from linker-supplied info.

     RT: I moved this check to last, after the complete search of
     the global (p)symtab's and static (p)symtab's. For HP-generated
     symbol tables, this check was causing a premature exit from
     lookup_symbol with NULL return, and thus messing up symbol lookups
     of things like "c::f". It seems to me a check of the minimal
     symbol table ought to be a last resort in any case. I'm vaguely
     worried about the comment below which talks about FORTRAN routines "foo_"
     though... is it saying we need to do the "minsym" check before
     the static check in this case? 
   */
  
  if (namespace == VAR_NAMESPACE)
    {
      msymbol = lookup_minimal_symbol (name, NULL, NULL);
      if (msymbol != NULL)
	{
          /* OK, we found a minimal symbol in spite of not
           * finding any symbol. There are various possible
           * explanations for this. One possibility is the symbol
           * exists in code not compiled -g. Another possibility
           * is that the 'psymtab' isn't doing its job.
           * A third possibility, related to #2, is that we were confused 
           * by name-mangling. For instance, maybe the psymtab isn't
           * doing its job because it only know about demangled
           * names, but we were given a mangled name...
           */

          /* We first use the address in the msymbol to try to
           * locate the appropriate symtab. Note that find_pc_symtab()
           * has a side-effect of doing psymtab-to-symtab expansion,
           * for the found symtab.
           */
	  s = find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol));
	  if (s != NULL)
	    {
	      bv = BLOCKVECTOR (s);
	      block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
	      sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
					 namespace);
              /* We kept static functions in minimal symbol table as well as
		 in static scope. We want to find them in the symbol table. */
 	      if (!sym) 
                {
		  block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
		  sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
					     namespace);
		}
              /* If we found one, return it */
              if (sym) {
	        if (symtab != NULL)
	          *symtab = s;
	        return sym;
              }

	      /* If we get here with sym == 0, the symbol was 
                 found in the minimal symbol table
		 but not in the symtab.
		 Fall through and return 0 to use the msymbol 
                 definition of "foo_".
                 (Note that outer code generally follows up a call
                  to this routine with a call to lookup_minimal_symbol(),
                  so a 0 return means we'll just flow into that other routine).

		 This happens for Fortran  "foo_" symbols,
		 which are "foo" in the symtab.

		 This can also happen if "asm" is used to make a
		 regular symbol but not a debugging symbol, e.g.
		 asm(".globl _main");
		 asm("_main:");
		 */
	    }

          /* If the lookup-by-address fails, try repeating the
           * entire lookup process with the symbol name from
           * the msymbol (if different from the original symbol name).
           */
	  else if (MSYMBOL_TYPE (msymbol) != mst_text
		   && MSYMBOL_TYPE (msymbol) != mst_file_text
		   && !STREQ (name, SYMBOL_NAME (msymbol)))
	    {
	      return lookup_symbol (SYMBOL_NAME (msymbol), block,
				    namespace, is_a_field_of_this, symtab);
	    }
	}
    }

#endif

  if (symtab != NULL)
    *symtab = NULL;
  return 0;
}

/* Look, in partial_symtab PST, for symbol NAME.  Check the global
   symbols if GLOBAL, the static symbols if not */

static struct partial_symbol *
lookup_partial_symbol (pst, name, global, namespace)
     struct partial_symtab *pst;
     const char *name;
     int global;
     namespace_enum namespace;
{
  struct partial_symbol **start, **psym;
  struct partial_symbol **top, **bottom, **center;
  int length = (global ? pst->n_global_syms : pst->n_static_syms);
  int do_linear_search = 1;

  if (length == 0)
    {
      return (NULL);
    }
  
  start = (global ?
	   pst->objfile->global_psymbols.list + pst->globals_offset :
	   pst->objfile->static_psymbols.list + pst->statics_offset  );

  if (global)		/* This means we can use a binary search. */
    {
      do_linear_search = 0;

      /* Binary search.  This search is guaranteed to end with center
         pointing at the earliest partial symbol with the correct
	 name.  At that point *all* partial symbols with that name
	 will be checked against the correct namespace. */

      bottom = start;
      top = start + length - 1;
      while (top > bottom)
	{
	  center = bottom + (top - bottom) / 2;
	  if (!(center < top))
	    abort ();
	  if (!do_linear_search
	      && (SYMBOL_LANGUAGE (*center) == language_cplus
		  || SYMBOL_LANGUAGE (*center) == language_java
		  ))
	    {
	      do_linear_search = 1;
	    }
	  if (STRCMP (SYMBOL_NAME (*center), name) >= 0)
	    {
	      top = center;
	    }
	  else
	    {
	      bottom = center + 1;
	    }
	}
      if (!(top == bottom))
	abort ();
      while (STREQ (SYMBOL_NAME (*top), name))
	{
	  if (SYMBOL_NAMESPACE (*top) == namespace)
	    {
	      return (*top);
	    }
	  top ++;
	}
    }

  /* Can't use a binary search or else we found during the binary search that
     we should also do a linear search. */

  if (do_linear_search)
    {
      for (psym = start; psym < start + length; psym++)
	{
	  if (namespace == SYMBOL_NAMESPACE (*psym))
	    {
	      if (SYMBOL_MATCHES_NAME (*psym, name))
		{
		  return (*psym);
		}
	    }
	}
    }

  return (NULL);
}

/* Look up a type named NAME in the struct_namespace.  The type returned
   must not be opaque -- i.e., must have at least one field defined

   This code was modelled on lookup_symbol -- the parts not relevant to looking
   up types were just left out.  In particular it's assumed here that types
   are available in struct_namespace and only at file-static or global blocks. */


struct type *
lookup_transparent_type (name)
     const char *name;
{
  register struct symbol *sym;
  register struct symtab *s = NULL;
  register struct partial_symtab *ps;
  struct blockvector *bv;
  register struct objfile *objfile;
  register struct block *block;
  register struct minimal_symbol *msymbol;

  /* Now search all the global symbols.  Do the symtab's first, then
     check the psymtab's. If a psymtab indicates the existence
     of the desired name as a global, then do psymtab-to-symtab
     conversion on the fly and return the found symbol.  */
  
  ALL_SYMTABS (objfile, s)
    {
      bv = BLOCKVECTOR (s);
      block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
      sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
      if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
	{
	  return SYMBOL_TYPE (sym);
	}
    }

  ALL_PSYMTABS (objfile, ps)
    {
      if (!ps->readin && lookup_partial_symbol (ps, name, 1, STRUCT_NAMESPACE))
	{
	  s = PSYMTAB_TO_SYMTAB(ps);
	  bv = BLOCKVECTOR (s);
	  block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
	  sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
	  if (!sym) 
            {
              /* This shouldn't be necessary, but as a last resort
               * try looking in the statics even though the psymtab
               * claimed the symbol was global. It's possible that
               * the psymtab gets it wrong in some cases.
               */
	      block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
	      sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
              if (!sym)
                error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
%s may be an inlined function, or may be a template function\n\
(if a template, try specifying an instantiation: %s<type>).",
                       name, ps->filename, name, name);
            }
          if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
            return SYMBOL_TYPE (sym);
	}
    }

  /* Now search the static file-level symbols.
     Not strictly correct, but more useful than an error.
     Do the symtab's first, then
     check the psymtab's. If a psymtab indicates the existence
     of the desired name as a file-level static, then do psymtab-to-symtab
     conversion on the fly and return the found symbol.
   */

  ALL_SYMTABS (objfile, s)
    {
      bv = BLOCKVECTOR (s);
      block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
      sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
      if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
	{
	  return SYMBOL_TYPE (sym);
	}
    }

  ALL_PSYMTABS (objfile, ps)
    {
      if (!ps->readin && lookup_partial_symbol (ps, name, 0, STRUCT_NAMESPACE))
	{
	  s = PSYMTAB_TO_SYMTAB(ps);
	  bv = BLOCKVECTOR (s);
	  block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
	  sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
	  if (!sym)
            {
              /* This shouldn't be necessary, but as a last resort
               * try looking in the globals even though the psymtab
               * claimed the symbol was static. It's possible that
               * the psymtab gets it wrong in some cases.
               */
	      block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
	      sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
              if (!sym)
	        error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
%s may be an inlined function, or may be a template function\n\
(if a template, try specifying an instantiation: %s<type>).",
                       name, ps->filename, name, name);
            }
          if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
            return SYMBOL_TYPE (sym);
	}
    }
  return (struct type *) 0;
}


/* Find the psymtab containing main(). */
/* FIXME:  What about languages without main() or specially linked
   executables that have no main() ? */

struct partial_symtab *
find_main_psymtab ()
{
  register struct partial_symtab *pst;
  register struct objfile *objfile;

  ALL_PSYMTABS (objfile, pst)
    {
      if (lookup_partial_symbol (pst, "main", 1, VAR_NAMESPACE))
	{
	  return (pst);
	}
    }
  return (NULL);
}

/* Search BLOCK for symbol NAME in NAMESPACE.

   Note that if NAME is the demangled form of a C++ symbol, we will fail
   to find a match during the binary search of the non-encoded names, but
   for now we don't worry about the slight inefficiency of looking for
   a match we'll never find, since it will go pretty quick.  Once the
   binary search terminates, we drop through and do a straight linear
   search on the symbols.  Each symbol which is marked as being a C++
   symbol (language_cplus set) has both the encoded and non-encoded names
   tested for a match. */

struct symbol *
lookup_block_symbol (block, name, namespace)
     register const struct block *block;
     const char *name;
     const namespace_enum namespace;
{
  register int bot, top, inc;
  register struct symbol *sym;
  register struct symbol *sym_found = NULL;
  register int do_linear_search = 1;

  /* If the blocks's symbols were sorted, start with a binary search.  */

  if (BLOCK_SHOULD_SORT (block))
    {
      /* Reset the linear search flag so if the binary search fails, we
	 won't do the linear search once unless we find some reason to
	 do so, such as finding a C++ symbol during the binary search.
	 Note that for C++ modules, ALL the symbols in a block should
	 end up marked as C++ symbols. */

      do_linear_search = 0;
      top = BLOCK_NSYMS (block);
      bot = 0;

      /* Advance BOT to not far before the first symbol whose name is NAME. */

      while (1)
	{
	  inc = (top - bot + 1);
	  /* No need to keep binary searching for the last few bits worth.  */
	  if (inc < 4)
	    {
	      break;
	    }
	  inc = (inc >> 1) + bot;
	  sym = BLOCK_SYM (block, inc);
	  if (!do_linear_search
	      && (SYMBOL_LANGUAGE (sym) == language_cplus
		  || SYMBOL_LANGUAGE (sym) == language_java
		  ))
	    {
	      do_linear_search = 1;
	    }
	  if (SYMBOL_NAME (sym)[0] < name[0])
	    {
	      bot = inc;
	    }
	  else if (SYMBOL_NAME (sym)[0] > name[0])
	    {
	      top = inc;
	    }
	  else if (STRCMP (SYMBOL_NAME (sym), name) < 0)
	    {
	      bot = inc;
	    }
	  else
	    {
	      top = inc;
	    }
	}

      /* Now scan forward until we run out of symbols, find one whose
	 name is greater than NAME, or find one we want.  If there is
	 more than one symbol with the right name and namespace, we
	 return the first one; I believe it is now impossible for us
	 to encounter two symbols with the same name and namespace
	 here, because blocks containing argument symbols are no
	 longer sorted.  */

      top = BLOCK_NSYMS (block);
      while (bot < top)
	{
	  sym = BLOCK_SYM (block, bot);
	  inc = SYMBOL_NAME (sym)[0] - name[0];
	  if (inc == 0)
	    {
	      inc = STRCMP (SYMBOL_NAME (sym), name);
	    }
	  if (inc == 0 && SYMBOL_NAMESPACE (sym) == namespace)
	    {
	      return (sym);
	    }
	  if (inc > 0)
	    {
	      break;
	    }
	  bot++;
	}
    }

  /* Here if block isn't sorted, or we fail to find a match during the
     binary search above.  If during the binary search above, we find a
     symbol which is a C++ symbol, then we have re-enabled the linear
     search flag which was reset when starting the binary search.

     This loop is equivalent to the loop above, but hacked greatly for speed.

     Note that parameter symbols do not always show up last in the
     list; this loop makes sure to take anything else other than
     parameter symbols first; it only uses parameter symbols as a
     last resort.  Note that this only takes up extra computation
     time on a match.  */

  if (do_linear_search)
    {
      top = BLOCK_NSYMS (block);
      bot = 0;
      while (bot < top)
	{
	  sym = BLOCK_SYM (block, bot);
	  if (SYMBOL_NAMESPACE (sym) == namespace &&
	      SYMBOL_MATCHES_NAME (sym, name))
	    {
	      /* If SYM has aliases, then use any alias that is active
		 at the current PC.  If no alias is active at the current
		 PC, then use the main symbol.

		 ?!? Is checking the current pc correct?  Is this routine
		 ever called to look up a symbol from another context?  */
              if (SYMBOL_ALIASES (sym))
                sym = find_active_alias (sym, read_pc ());

	      sym_found = sym;
	      if (SYMBOL_CLASS (sym) != LOC_ARG &&
		  SYMBOL_CLASS (sym) != LOC_LOCAL_ARG &&
		  SYMBOL_CLASS (sym) != LOC_REF_ARG &&
		  SYMBOL_CLASS (sym) != LOC_REGPARM &&
		  SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR &&
		  SYMBOL_CLASS (sym) != LOC_BASEREG_ARG)
		{
		  break;
		}
	    }
	  bot++;
	}
    }
  return (sym_found);		/* Will be NULL if not found. */
}

/* Given a main symbol SYM and ADDR, search through the alias
   list to determine if an alias is active at ADDR and return
   the active alias.

   If no alias is active, then return SYM.  */

static struct symbol *
find_active_alias (sym, addr)
  struct symbol *sym;
  CORE_ADDR addr;
{
  struct range_list *r;
  struct alias_list *aliases;

  /* If we have aliases, check them first.  */
  aliases = SYMBOL_ALIASES (sym);

  while (aliases)
    {
      if (!SYMBOL_RANGES (aliases->sym))
        return aliases->sym;
      for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next)
	{
	  if (r->start <= addr && r->end > addr)
	    return aliases->sym;
	}
      aliases = aliases->next;
    }

  /* Nothing found, return the main symbol.  */
  return sym;
}


/* Return the symbol for the function which contains a specified
   lexical block, described by a struct block BL.  */

struct symbol *
block_function (bl)
     struct block *bl;
{
  while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0)
    bl = BLOCK_SUPERBLOCK (bl);

  return BLOCK_FUNCTION (bl);
}

/* Find the symtab associated with PC and SECTION.  Look through the
   psymtabs and read in another symtab if necessary. */

struct symtab *
find_pc_sect_symtab (pc, section)
     CORE_ADDR pc;
     asection *section;
{
  register struct block *b;
  struct blockvector *bv;
  register struct symtab *s = NULL;
  register struct symtab *best_s = NULL;
  register struct partial_symtab *ps;
  register struct objfile *objfile;
  CORE_ADDR distance = 0;

  /* Search all symtabs for the one whose file contains our address, and which
     is the smallest of all the ones containing the address.  This is designed
     to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
     and symtab b is at 0x2000-0x3000.  So the GLOBAL_BLOCK for a is from
     0x1000-0x4000, but for address 0x2345 we want to return symtab b.

     This happens for native ecoff format, where code from included files
     gets its own symtab. The symtab for the included file should have
     been read in already via the dependency mechanism.
     It might be swifter to create several symtabs with the same name
     like xcoff does (I'm not sure).

     It also happens for objfiles that have their functions reordered.
     For these, the symtab we are looking for is not necessarily read in.  */

  ALL_SYMTABS (objfile, s)
    {
      bv = BLOCKVECTOR (s);
      b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);

      if (BLOCK_START (b) <= pc
#if defined(HPUXHPPA)
	  && BLOCK_END (b) >= pc
#else
	  && BLOCK_END (b) > pc
#endif
	  && (distance == 0
	      || BLOCK_END (b) - BLOCK_START (b) < distance))
	{
	  /* For an objfile that has its functions reordered,
	     find_pc_psymtab will find the proper partial symbol table
	     and we simply return its corresponding symtab.  */
	  /* In order to better support objfiles that contain both
	     stabs and coff debugging info, we continue on if a psymtab
	     can't be found. */
	  if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs)
	    {
	      ps = find_pc_sect_psymtab (pc, section);
	      if (ps)
		return PSYMTAB_TO_SYMTAB (ps);
	    }
	  if (section != 0)
	    {
	      int i;

	      for (i = 0; i < b->nsyms; i++)
		{
		  fixup_symbol_section (b->sym[i], objfile);
		  if (section == SYMBOL_BFD_SECTION (b->sym[i]))
		    break;
		}
	      if (i >= b->nsyms)
		continue;	/* no symbol in this symtab matches section */
	    }
	  distance = BLOCK_END (b) - BLOCK_START (b);
	  best_s = s;
	}
    }

  if (best_s != NULL)
    return(best_s);

  s = NULL;
  ps = find_pc_sect_psymtab (pc, section);
  if (ps)
    {
      if (ps->readin)
	/* Might want to error() here (in case symtab is corrupt and
	   will cause a core dump), but maybe we can successfully
	   continue, so let's not.  */
	/* FIXME-32x64: assumes pc fits in a long */
	warning ("\
(Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n",
	         (unsigned long) pc);
      s = PSYMTAB_TO_SYMTAB (ps);
    }
  return (s);
}

/* Find the symtab associated with PC.  Look through the psymtabs and
   read in another symtab if necessary.  Backward compatibility, no section */

struct symtab *
find_pc_symtab (pc)
     CORE_ADDR pc;
{
  return find_pc_sect_symtab (pc, find_pc_mapped_section (pc));
}


#if 0

/* Find the closest symbol value (of any sort -- function or variable)
   for a given address value.  Slow but complete.  (currently unused,
   mainly because it is too slow.  We could fix it if each symtab and
   psymtab had contained in it the addresses ranges of each of its
   sections, which also would be required to make things like "info
   line *0x2345" cause psymtabs to be converted to symtabs).  */

struct symbol *
find_addr_symbol (addr, symtabp, symaddrp)
     CORE_ADDR addr;
     struct symtab **symtabp;
     CORE_ADDR *symaddrp;
{
  struct symtab *symtab, *best_symtab;
  struct objfile *objfile;
  register int bot, top;
  register struct symbol *sym;
  register CORE_ADDR sym_addr;
  struct block *block;
  int blocknum;

  /* Info on best symbol seen so far */

  register CORE_ADDR best_sym_addr = 0;
  struct symbol *best_sym = 0;

  /* FIXME -- we should pull in all the psymtabs, too!  */
  ALL_SYMTABS (objfile, symtab)
    {
      /* Search the global and static blocks in this symtab for
	 the closest symbol-address to the desired address.  */

      for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++)
	{
	  QUIT;
	  block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum);
	  top = BLOCK_NSYMS (block);
	  for (bot = 0; bot < top; bot++)
	    {
	      sym = BLOCK_SYM (block, bot);
	      switch (SYMBOL_CLASS (sym))
		{
		case LOC_STATIC:	
		case LOC_LABEL:	
		  sym_addr = SYMBOL_VALUE_ADDRESS (sym);
		  break;

                case LOC_INDIRECT:
		  sym_addr = SYMBOL_VALUE_ADDRESS (sym);
                  /* An indirect symbol really lives at *sym_addr,
                   * so an indirection needs to be done.
                   * However, I am leaving this commented out because it's
                   * expensive, and it's possible that symbolization
                   * could be done without an active process (in
                   * case this read_memory will fail). RT
                  sym_addr = read_memory_unsigned_integer
                      (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
                   */
                  break;

		case LOC_BLOCK:
		  sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
		  break;

		default:
		  continue;
		}

		if (sym_addr <= addr)
		  if (sym_addr > best_sym_addr)
		    {
		      /* Quit if we found an exact match.  */
		      best_sym = sym;
		      best_sym_addr = sym_addr;
		      best_symtab = symtab;
		      if (sym_addr == addr)
			goto done;
		    }
	    }
	}
    }

 done:
  if (symtabp)
    *symtabp = best_symtab;
  if (symaddrp)
    *symaddrp = best_sym_addr;
  return best_sym;
}
#endif /* 0 */

/* Find the source file and line number for a given PC value and section.
   Return a structure containing a symtab pointer, a line number,
   and a pc range for the entire source line.
   The value's .pc field is NOT the specified pc.
   NOTCURRENT nonzero means, if specified pc is on a line boundary,
   use the line that ends there.  Otherwise, in that case, the line
   that begins there is used.  */

/* The big complication here is that a line may start in one file, and end just
   before the start of another file.  This usually occurs when you #include
   code in the middle of a subroutine.  To properly find the end of a line's PC
   range, we must search all symtabs associated with this compilation unit, and
   find the one whose first PC is closer than that of the next line in this
   symtab.  */

/* If it's worth the effort, we could be using a binary search.  */

struct symtab_and_line
find_pc_sect_line (pc, section, notcurrent)
     CORE_ADDR pc;
     struct sec *section;
     int notcurrent;
{
  struct symtab *s;
  register struct linetable *l;
  register int len;
  register int i;
  register struct linetable_entry *item;
  struct symtab_and_line val;
  struct blockvector *bv;
  struct minimal_symbol *msymbol;
  struct minimal_symbol *mfunsym;

  /* Info on best line seen so far, and where it starts, and its file.  */

  struct linetable_entry *best = NULL;
  CORE_ADDR best_end = 0;
  struct symtab *best_symtab = 0;

  /* Store here the first line number
     of a file which contains the line at the smallest pc after PC.
     If we don't find a line whose range contains PC,
     we will use a line one less than this,
     with a range from the start of that file to the first line's pc.  */
  struct linetable_entry *alt = NULL;
  struct symtab *alt_symtab = 0;

  /* Info on best line seen in this file.  */

  struct linetable_entry *prev;

  /* If this pc is not from the current frame,
     it is the address of the end of a call instruction.
     Quite likely that is the start of the following statement.
     But what we want is the statement containing the instruction.
     Fudge the pc to make sure we get that.  */

  INIT_SAL (&val);	/* initialize to zeroes */

  if (notcurrent)
    pc -= 1;

 /* elz: added this because this function returned the wrong
     information if the pc belongs to a stub (import/export)
     to call a shlib function. This stub would be anywhere between
     two functions in the target, and the line info was erroneously 
     taken to be the one of the line before the pc. 
  */
  /* RT: Further explanation:
   *
   * We have stubs (trampolines) inserted between procedures.
   *
   * Example: "shr1" exists in a shared library, and a "shr1" stub also
   * exists in the main image.
   *
   * In the minimal symbol table, we have a bunch of symbols
   * sorted by start address. The stubs are marked as "trampoline",
   * the others appear as text. E.g.:
   *
   *  Minimal symbol table for main image 
   *     main:  code for main (text symbol)
   *     shr1: stub  (trampoline symbol)
   *     foo:   code for foo (text symbol)
   *     ...
   *  Minimal symbol table for "shr1" image:
   *     ...
   *     shr1: code for shr1 (text symbol)
   *     ...
   *
   * So the code below is trying to detect if we are in the stub
   * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
   * and if found,  do the symbolization from the real-code address
   * rather than the stub address.
   *
   * Assumptions being made about the minimal symbol table:
   *   1. lookup_minimal_symbol_by_pc() will return a trampoline only
   *      if we're really in the trampoline. If we're beyond it (say
   *      we're in "foo" in the above example), it'll have a closer 
   *      symbol (the "foo" text symbol for example) and will not
   *      return the trampoline.
   *   2. lookup_minimal_symbol_text() will find a real text symbol
   *      corresponding to the trampoline, and whose address will
   *      be different than the trampoline address. I put in a sanity
   *      check for the address being the same, to avoid an
   *      infinite recursion.
   */
  msymbol = lookup_minimal_symbol_by_pc(pc);
  if (msymbol != NULL) 
    if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline)
    {
     mfunsym = lookup_minimal_symbol_text (SYMBOL_NAME (msymbol), NULL, NULL);
     if (mfunsym == NULL) 
        /* I eliminated this warning since it is coming out
         * in the following situation:
         * gdb shmain // test program with shared libraries
         * (gdb) break shr1  // function in shared lib
         * Warning: In stub for ...
         * In the above situation, the shared lib is not loaded yet, 
         * so of course we can't find the real func/line info,
         * but the "break" still works, and the warning is annoying.
         * So I commented out the warning. RT */
        /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */;
        /* fall through */
     else if (SYMBOL_VALUE(mfunsym) == SYMBOL_VALUE(msymbol))
        /* Avoid infinite recursion */
        /* See above comment about why warning is commented out */
        /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */;
        /* fall through */
     else
       return find_pc_line( SYMBOL_VALUE (mfunsym), 0);
    }


  s = find_pc_sect_symtab (pc, section);
  if (!s)
    {
      /* if no symbol information, return previous pc */
      if (notcurrent)
	pc++;
      val.pc = pc;
      return val;
    }

  bv = BLOCKVECTOR (s);

  /* Look at all the symtabs that share this blockvector.
     They all have the same apriori range, that we found was right;
     but they have different line tables.  */

  for (; s && BLOCKVECTOR (s) == bv; s = s->next)
    {
      /* Find the best line in this symtab.  */
      l = LINETABLE (s);
      if (!l)
        continue;
      len = l->nitems;
      if (len <= 0)
	{
	  /* I think len can be zero if the symtab lacks line numbers
	     (e.g. gcc -g1).  (Either that or the LINETABLE is NULL;
	     I'm not sure which, and maybe it depends on the symbol
	     reader).  */
	  continue;
	}

      prev = NULL;
      item = l->item;		/* Get first line info */

      /* Is this file's first line closer than the first lines of other files?
	 If so, record this file, and its first line, as best alternate.  */
      if (item->pc > pc && (!alt || item->pc < alt->pc))
	{
	  alt = item;
	  alt_symtab = s;
	}

      for (i = 0; i < len; i++, item++)
	{
	  /* Leave prev pointing to the linetable entry for the last line
	     that started at or before PC.  */
	  if (item->pc > pc)
	    break;

	  prev = item;
	}

      /* At this point, prev points at the line whose start addr is <= pc, and
	 item points at the next line.  If we ran off the end of the linetable
	 (pc >= start of the last line), then prev == item.  If pc < start of
	 the first line, prev will not be set.  */

      /* Is this file's best line closer than the best in the other files?
	 If so, record this file, and its best line, as best so far.  */

      if (prev && (!best || prev->pc > best->pc))
	{
	  best = prev;
	  best_symtab = s;
	  /* If another line is in the linetable, and its PC is closer
	     than the best_end we currently have, take it as best_end.  */
	  if (i < len && (best_end == 0 || best_end > item->pc))
	    best_end = item->pc;
	}
    }

  if (!best_symtab)
    {
      if (!alt_symtab)
	{			/* If we didn't find any line # info, just
				   return zeros.  */
	  val.pc = pc;
	}
      else
	{
	  val.symtab = alt_symtab;
	  val.line = alt->line - 1;

	  /* Don't return line 0, that means that we didn't find the line.  */
	  if (val.line == 0) ++val.line;

	  val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
	  val.end = alt->pc;
	}
    }
  else
    {
      val.symtab = best_symtab;
      val.line = best->line;
      val.pc = best->pc;
      if (best_end && (!alt || best_end < alt->pc))
	val.end = best_end;
      else if (alt)
	val.end = alt->pc;
      else
	val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
    }
  val.section = section;
  return val;
}

/* Backward compatibility (no section) */

struct symtab_and_line
find_pc_line (pc, notcurrent)
     CORE_ADDR pc;
     int notcurrent;
{
  asection     *section;

  section = find_pc_overlay (pc);
  if (pc_in_unmapped_range (pc, section))
    pc = overlay_mapped_address (pc, section);
  return find_pc_sect_line (pc, section, notcurrent);
}


static struct symtab* find_line_symtab PARAMS ((struct symtab *, int,
						int *, int *));

/* Find line number LINE in any symtab whose name is the same as
   SYMTAB.

   If found, return the symtab that contains the linetable in which it was
   found, set *INDEX to the index in the linetable of the best entry
   found, and set *EXACT_MATCH nonzero if the value returned is an
   exact match.

   If not found, return NULL.  */

static struct symtab*
find_line_symtab (symtab, line, index, exact_match)
     struct symtab *symtab;
     int line;
     int *index;
     int *exact_match;
{
  int exact;

  /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
     so far seen.  */

  int best_index;
  struct linetable *best_linetable;
  struct symtab *best_symtab;

  /* First try looking it up in the given symtab.  */
  best_linetable = LINETABLE (symtab);
  best_symtab = symtab;
  best_index = find_line_common (best_linetable, line, &exact);
  if (best_index < 0 || !exact)
    {
      /* Didn't find an exact match.  So we better keep looking for
	 another symtab with the same name.  In the case of xcoff,
	 multiple csects for one source file (produced by IBM's FORTRAN
	 compiler) produce multiple symtabs (this is unavoidable
	 assuming csects can be at arbitrary places in memory and that
	 the GLOBAL_BLOCK of a symtab has a begin and end address).  */

      /* BEST is the smallest linenumber > LINE so far seen,
	 or 0 if none has been seen so far.
	 BEST_INDEX and BEST_LINETABLE identify the item for it.  */
      int best;

      struct objfile *objfile;
      struct symtab *s;

      if (best_index >= 0)
	best = best_linetable->item[best_index].line;
      else
	best = 0;

      ALL_SYMTABS (objfile, s)
	{
	  struct linetable *l;
	  int ind;

	  if (!STREQ (symtab->filename, s->filename))
	    continue;
	  l = LINETABLE (s);
	  ind = find_line_common (l, line, &exact);
	  if (ind >= 0)
	    {
	      if (exact)
		{
		  best_index = ind;
		  best_linetable = l;
		  best_symtab = s;
		  goto done;
		}
	      if (best == 0 || l->item[ind].line < best)
		{
		  best = l->item[ind].line;
		  best_index = ind;
		  best_linetable = l;
		  best_symtab = s;
		}
	    }
	}
    }
 done:
  if (best_index < 0)
    return NULL;

  if (index)
    *index = best_index;
  if (exact_match)
    *exact_match = exact;

  return best_symtab;
}

/* Set the PC value for a given source file and line number and return true.
   Returns zero for invalid line number (and sets the PC to 0).
   The source file is specified with a struct symtab.  */

int
find_line_pc (symtab, line, pc)
     struct symtab *symtab;
     int line;
     CORE_ADDR *pc;
{
  struct linetable *l;
  int ind;

  *pc = 0;
  if (symtab == 0)
    return 0;

  symtab = find_line_symtab (symtab, line, &ind, NULL);
  if (symtab != NULL)
    {
      l = LINETABLE (symtab);
      *pc = l->item[ind].pc;
      return 1;
    }
  else
    return 0;
}

/* Find the range of pc values in a line.
   Store the starting pc of the line into *STARTPTR
   and the ending pc (start of next line) into *ENDPTR.
   Returns 1 to indicate success.
   Returns 0 if could not find the specified line.  */

int
find_line_pc_range (sal, startptr, endptr)
     struct symtab_and_line sal;
     CORE_ADDR *startptr, *endptr;
{
  CORE_ADDR startaddr;
  struct symtab_and_line found_sal;

  startaddr = sal.pc;
  if (startaddr==0 && !find_line_pc (sal.symtab, sal.line, &startaddr))
    return 0;

  /* This whole function is based on address.  For example, if line 10 has
     two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
     "info line *0x123" should say the line goes from 0x100 to 0x200
     and "info line *0x355" should say the line goes from 0x300 to 0x400.
     This also insures that we never give a range like "starts at 0x134
     and ends at 0x12c".  */

  found_sal = find_pc_sect_line (startaddr, sal.section, 0);
  if (found_sal.line != sal.line)
    {
      /* The specified line (sal) has zero bytes.  */
      *startptr = found_sal.pc;
      *endptr = found_sal.pc;
    }
  else
    {
      *startptr = found_sal.pc;
      *endptr = found_sal.end;
    }
  return 1;
}

/* Given a line table and a line number, return the index into the line
   table for the pc of the nearest line whose number is >= the specified one.
   Return -1 if none is found.  The value is >= 0 if it is an index.

   Set *EXACT_MATCH nonzero if the value returned is an exact match.  */

static int
find_line_common (l, lineno, exact_match)
     register struct linetable *l;
     register int lineno;
     int *exact_match;
{
  register int i;
  register int len;

  /* BEST is the smallest linenumber > LINENO so far seen,
     or 0 if none has been seen so far.
     BEST_INDEX identifies the item for it.  */

  int best_index = -1;
  int best = 0;

  if (lineno <= 0)
    return -1;
  if (l == 0)
    return -1;

  len = l->nitems;
  for (i = 0; i < len; i++)
    {
      register struct linetable_entry *item = &(l->item[i]);

      if (item->line == lineno)
	{
	  /* Return the first (lowest address) entry which matches.  */
	  *exact_match = 1;
	  return i;
	}

      if (item->line > lineno && (best == 0 || item->line < best))
	{
	  best = item->line;
	  best_index = i;
	}
    }

  /* If we got here, we didn't get an exact match.  */

  *exact_match = 0;
  return best_index;
}

int
find_pc_line_pc_range (pc, startptr, endptr)
     CORE_ADDR pc;
     CORE_ADDR *startptr, *endptr;
{
  struct symtab_and_line sal;
  sal = find_pc_line (pc, 0);
  *startptr = sal.pc;
  *endptr = sal.end;
  return sal.symtab != 0;
}

/* Given a function symbol SYM, find the symtab and line for the start
   of the function.
   If the argument FUNFIRSTLINE is nonzero, we want the first line
   of real code inside the function.  */

static struct symtab_and_line
find_function_start_sal PARAMS ((struct symbol *sym, int));

static struct symtab_and_line
find_function_start_sal (sym, funfirstline)
     struct symbol *sym;
     int funfirstline;
{
  CORE_ADDR pc;
  struct symtab_and_line sal;

  pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
  fixup_symbol_section (sym, NULL);
  if (funfirstline)
    { /* skip "first line" of function (which is actually its prologue) */
      asection *section = SYMBOL_BFD_SECTION (sym);
      /* If function is in an unmapped overlay, use its unmapped LMA
	 address, so that SKIP_PROLOGUE has something unique to work on */
      if (section_is_overlay (section) &&
	  !section_is_mapped (section))
	pc = overlay_unmapped_address (pc, section);

      pc += FUNCTION_START_OFFSET;
      pc = SKIP_PROLOGUE (pc);

      /* For overlays, map pc back into its mapped VMA range */
      pc = overlay_mapped_address (pc, section);
    }
  sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);

#ifdef PROLOGUE_FIRSTLINE_OVERLAP
  /* Convex: no need to suppress code on first line, if any */
  sal.pc = pc;
#else
  /* Check if SKIP_PROLOGUE left us in mid-line, and the next
     line is still part of the same function.  */
  if (sal.pc != pc
      && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end
      && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym)))
    {
      /* First pc of next line */
      pc = sal.end;
      /* Recalculate the line number (might not be N+1).  */
      sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
    }
  sal.pc = pc;
#endif

  return sal;
}

/* If P is of the form "operator[ \t]+..." where `...' is
   some legitimate operator text, return a pointer to the
   beginning of the substring of the operator text.
   Otherwise, return "".  */
char *
operator_chars (p, end)
     char *p;
     char **end;
{
  *end = "";
  if (strncmp (p, "operator", 8))
    return *end;
  p += 8;

  /* Don't get faked out by `operator' being part of a longer
     identifier.  */
  if (isalpha(*p) || *p == '_' || *p == '$' || *p == '\0')
    return *end;

  /* Allow some whitespace between `operator' and the operator symbol.  */
  while (*p == ' ' || *p == '\t')
    p++;

  /* Recognize 'operator TYPENAME'. */

  if (isalpha(*p) || *p == '_' || *p == '$')
    {
      register char *q = p+1;
      while (isalnum(*q) || *q == '_' || *q == '$')
	q++;
      *end = q;
      return p;
    }

  switch (*p)
    {
    case '!':
    case '=':
    case '*':
    case '/':
    case '%':
    case '^':
      if (p[1] == '=')
	*end = p+2;
      else
	*end = p+1;
      return p;
    case '<':
    case '>':
    case '+':
    case '-':
    case '&':
    case '|':
      if (p[1] == '=' || p[1] == p[0])
	*end = p+2;
      else
	*end = p+1;
      return p;
    case '~':
    case ',':
      *end = p+1;
      return p;
    case '(':
      if (p[1] != ')')
	error ("`operator ()' must be specified without whitespace in `()'");
      *end = p+2;
      return p;
    case '?':
      if (p[1] != ':')
	error ("`operator ?:' must be specified without whitespace in `?:'");
      *end = p+2;
      return p;
    case '[':
      if (p[1] != ']')
	error ("`operator []' must be specified without whitespace in `[]'");
      *end = p+2;
      return p;
    default:
      error ("`operator %s' not supported", p);
      break;
    }
  *end = "";
  return *end;
}

/* Return the number of methods described for TYPE, including the
   methods from types it derives from. This can't be done in the symbol
   reader because the type of the baseclass might still be stubbed
   when the definition of the derived class is parsed.  */

static int total_number_of_methods PARAMS ((struct type *type));

static int
total_number_of_methods (type)
     struct type *type;
{
  int n;
  int count;

  CHECK_TYPEDEF (type);
  if (TYPE_CPLUS_SPECIFIC (type) == NULL)
    return 0;
  count = TYPE_NFN_FIELDS_TOTAL (type);

  for (n = 0; n < TYPE_N_BASECLASSES (type); n++)
    count += total_number_of_methods (TYPE_BASECLASS (type, n));

  return count;
}

/* Recursive helper function for decode_line_1.
   Look for methods named NAME in type T.
   Return number of matches.
   Put matches in SYM_ARR, which should have been allocated with
   a size of total_number_of_methods (T) * sizeof (struct symbol *).
   Note that this function is g++ specific.  */

static int
find_methods (t, name, sym_arr)
     struct type *t;
     char *name;
     struct symbol **sym_arr;
{
  int i1 = 0;
  int ibase;
  struct symbol *sym_class;
  char *class_name = type_name_no_tag (t);

  /* Ignore this class if it doesn't have a name.  This is ugly, but
     unless we figure out how to get the physname without the name of
     the class, then the loop can't do any good.  */
  if (class_name
      && (sym_class = lookup_symbol (class_name,
				     (struct block *)NULL,
				     STRUCT_NAMESPACE,
				     (int *)NULL,
				     (struct symtab **)NULL)))
    {
      int method_counter;

      /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)?  */
      t = SYMBOL_TYPE (sym_class);

      /* Loop over each method name.  At this level, all overloads of a name
	 are counted as a single name.  There is an inner loop which loops over
	 each overload.  */

      for (method_counter = TYPE_NFN_FIELDS (t) - 1;
	   method_counter >= 0;
	   --method_counter)
	{
	  int field_counter;
	  char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter);
	  char dem_opname[64];

          if (strncmp (method_name, "__", 2) == 0 ||
	      strncmp (method_name, "op", 2) == 0 ||
	      strncmp (method_name, "type", 4) == 0)
            {
	      if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
	        method_name = dem_opname;
	      else if (cplus_demangle_opname (method_name, dem_opname, 0))
	        method_name = dem_opname; 
            }

	  if (STREQ (name, method_name))
	    /* Find all the overloaded methods with that name.  */
	    for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
		 field_counter >= 0;
		 --field_counter)
	      {
		struct fn_field *f;
		char *phys_name;

		f = TYPE_FN_FIELDLIST1 (t, method_counter);

		if (TYPE_FN_FIELD_STUB (f, field_counter))
		  {
		    char *tmp_name;

		    tmp_name = gdb_mangle_name (t,
						 method_counter,
						 field_counter);
		    phys_name = alloca (strlen (tmp_name) + 1);
		    strcpy (phys_name, tmp_name);
		    free (tmp_name);
		  }
		else
		  phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);

		/* Destructor is handled by caller, dont add it to the list */
		if (DESTRUCTOR_PREFIX_P (phys_name))
		  continue;

		sym_arr[i1] = lookup_symbol (phys_name,
					     NULL, VAR_NAMESPACE,
					     (int *) NULL,
					     (struct symtab **) NULL);
		if (sym_arr[i1])
		  i1++;
		else
		  {
		    /* This error message gets printed, but the method
		       still seems to be found
		       fputs_filtered("(Cannot find method ", gdb_stdout);
		       fprintf_symbol_filtered (gdb_stdout, phys_name,
		       language_cplus,
		       DMGL_PARAMS | DMGL_ANSI);
		       fputs_filtered(" - possibly inlined.)\n", gdb_stdout);
		       */
		  }
	      }
	}
    }

  /* Only search baseclasses if there is no match yet, since names in
     derived classes override those in baseclasses.

     FIXME: The above is not true; it is only true of member functions
     if they have the same number of arguments (??? - section 13.1 of the
     ARM says the function members are not in the same scope but doesn't
     really spell out the rules in a way I understand.  In any case, if
     the number of arguments differ this is a case in which we can overload
     rather than hiding without any problem, and gcc 2.4.5 does overload
     rather than hiding in this case).  */

  if (i1 == 0)
    for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
      i1 += find_methods (TYPE_BASECLASS (t, ibase), name, sym_arr + i1);

  return i1;
}

/* Helper function for decode_line_1.
   Build a canonical line spec in CANONICAL if it is non-NULL and if
   the SAL has a symtab.
   If SYMNAME is non-NULL the canonical line spec is `filename:symname'.
   If SYMNAME is NULL the line number from SAL is used and the canonical
   line spec is `filename:linenum'.  */

static void
build_canonical_line_spec (sal, symname, canonical)
     struct symtab_and_line *sal;
     char *symname;
     char ***canonical;
{
  char **canonical_arr;
  char *canonical_name;
  char *filename;
  struct symtab *s = sal->symtab;

  if (s == (struct symtab *)NULL
      || s->filename == (char *)NULL
      || canonical == (char ***)NULL)
    return;
 
  canonical_arr = (char **) xmalloc (sizeof (char *));
  *canonical = canonical_arr;

  filename = s->filename;
  if (symname != NULL)
    {
      canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2);
      sprintf (canonical_name, "%s:%s", filename, symname);
    }
  else
    {
      canonical_name = xmalloc (strlen (filename) + 30);
      sprintf (canonical_name, "%s:%d", filename, sal->line);
    }
  canonical_arr[0] = canonical_name;
}

/* Parse a string that specifies a line number.
   Pass the address of a char * variable; that variable will be
   advanced over the characters actually parsed.

   The string can be:

   LINENUM -- that line number in current file.  PC returned is 0.
   FILE:LINENUM -- that line in that file.  PC returned is 0.
   FUNCTION -- line number of openbrace of that function.
      PC returned is the start of the function.
   VARIABLE -- line number of definition of that variable.
      PC returned is 0.
   FILE:FUNCTION -- likewise, but prefer functions in that file.
   *EXPR -- line in which address EXPR appears.

   This may all be followed by an "if EXPR", which we ignore.

   FUNCTION may be an undebuggable function found in minimal symbol table.

   If the argument FUNFIRSTLINE is nonzero, we want the first line
   of real code inside a function when a function is specified, and it is
   not OK to specify a variable or type to get its line number.

   DEFAULT_SYMTAB specifies the file to use if none is specified.
   It defaults to current_source_symtab.
   DEFAULT_LINE specifies the line number to use for relative
   line numbers (that start with signs).  Defaults to current_source_line.
   If CANONICAL is non-NULL, store an array of strings containing the canonical
   line specs there if necessary. Currently overloaded member functions and
   line numbers or static functions without a filename yield a canonical
   line spec. The array and the line spec strings are allocated on the heap,
   it is the callers responsibility to free them.

   Note that it is possible to return zero for the symtab
   if no file is validly specified.  Callers must check that.
   Also, the line number returned may be invalid.  */

/* We allow single quotes in various places.  This is a hideous
   kludge, which exists because the completer can't yet deal with the
   lack of single quotes.  FIXME: write a linespec_completer which we
   can use as appropriate instead of make_symbol_completion_list.  */

struct symtabs_and_lines
decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
     char **argptr;
     int funfirstline;
     struct symtab *default_symtab;
     int default_line;
     char ***canonical;
{
  struct symtabs_and_lines values;
#ifdef HPPA_COMPILER_BUG
  /* FIXME: The native HP 9000/700 compiler has a bug which appears
     when optimizing this file with target i960-vxworks.  I haven't
     been able to construct a simple test case.  The problem is that
     in the second call to SKIP_PROLOGUE below, the compiler somehow
     does not realize that the statement val = find_pc_line (...) will
     change the values of the fields of val.  It extracts the elements
     into registers at the top of the block, and does not update the
     registers after the call to find_pc_line.  You can check this by
     inserting a printf at the end of find_pc_line to show what values
     it is returning for val.pc and val.end and another printf after
     the call to see what values the function actually got (remember,
     this is compiling with cc -O, with this patch removed).  You can
     also examine the assembly listing: search for the second call to
     skip_prologue; the LDO statement before the next call to
     find_pc_line loads the address of the structure which
     find_pc_line will return; if there is a LDW just before the LDO,
     which fetches an element of the structure, then the compiler
     still has the bug.

     Setting val to volatile avoids the problem.  We must undef
     volatile, because the HPPA native compiler does not define
     __STDC__, although it does understand volatile, and so volatile
     will have been defined away in defs.h.  */
#undef volatile
  volatile struct symtab_and_line val;
#define volatile /*nothing*/
#else
  struct symtab_and_line val;
#endif
  register char *p, *p1;
  char *q, *pp, *ii, *p2;
#if 0
  char *q1;
#endif
  register struct symtab *s;

  register struct symbol *sym;
  /* The symtab that SYM was found in.  */
  struct symtab *sym_symtab;

  register CORE_ADDR pc;
  register struct minimal_symbol *msymbol;
  char *copy;
  struct symbol *sym_class;
  int i1;
  int is_quoted;
  int is_quote_enclosed;
  int has_parens;  
  int has_if = 0;
  int has_comma = 0;
  struct symbol **sym_arr;
  struct type *t;
  char *saved_arg = *argptr;
  extern char *gdb_completer_quote_characters;
  
  INIT_SAL (&val);	/* initialize to zeroes */

  /* Defaults have defaults.  */

  if (default_symtab == 0)
    {
      default_symtab = current_source_symtab;
      default_line = current_source_line;
    }

  /* See if arg is *PC */

  if (**argptr == '*')
    {
      (*argptr)++;
      pc = parse_and_eval_address_1 (argptr);

      values.sals = (struct symtab_and_line *)
	xmalloc (sizeof (struct symtab_and_line));

      values.nelts = 1;
      values.sals[0] = find_pc_line (pc, 0);
      values.sals[0].pc = pc;
      values.sals[0].section = find_pc_overlay (pc);

      return values;
    }

  /* 'has_if' is for the syntax:
   *     (gdb) break foo if (a==b)
   */
  if ((ii = strstr(*argptr, " if ")) != NULL ||
      (ii = strstr(*argptr, "\tif ")) != NULL ||
      (ii = strstr(*argptr, " if\t")) != NULL ||
      (ii = strstr(*argptr, "\tif\t")) != NULL ||
      (ii = strstr(*argptr, " if(")) != NULL ||
      (ii = strstr(*argptr, "\tif( ")) != NULL) 
    has_if = 1;
  /* Temporarily zap out "if (condition)" to not
   * confuse the parenthesis-checking code below.
   * This is undone below. Do not change ii!!
   */
  if (has_if) {
    *ii = '\0';
  }

  /* Set various flags.
   * 'has_parens' is important for overload checking, where
   * we allow things like: 
   *     (gdb) break c::f(int)
   */

  /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */

  is_quoted = (**argptr
	       && strchr (gdb_completer_quote_characters, **argptr) != NULL);

  has_parens = ((pp = strchr (*argptr, '(')) != NULL
		 && (pp = strchr (pp, ')')) != NULL);

  /* Now that we're safely past the has_parens check,
   * put back " if (condition)" so outer layers can see it 
   */
  if (has_if)
    *ii = ' ';

  /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM
     and we must isolate the first half.  Outer layers will call again later
     for the second half */
  if ((ii = strchr(*argptr, ',')) != NULL)
    has_comma = 1;
  /* Temporarily zap out second half to not
   * confuse the code below.
   * This is undone below. Do not change ii!!
   */
  if (has_comma) {
    *ii = '\0';
  }

  /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
  /* May also be CLASS::MEMBER, or NAMESPACE::NAME */
  /* Look for ':', but ignore inside of <> */

  s = NULL;
  p = *argptr;
  if (p[0] == '"')
    {
      is_quote_enclosed = 1;
      p++;
    }
  else
      is_quote_enclosed = 0;
  for ( ; *p; p++)
    {
      if (p[0] == '<') 
	{
          char * temp_end = find_template_name_end (p);
          if (!temp_end)
            error ("malformed template specification in command");
          p = temp_end;
	}
      /* Check for the end of the first half of the linespec.  End of line,
         a tab, a double colon or the last single colon, or a space.  But
         if enclosed in double quotes we do not break on enclosed spaces */
      if (!*p
          || p[0] == '\t'
          || ((p[0] == ':')
              && ((p[1] == ':') || (strchr (p + 1, ':') == NULL)))
          || ((p[0] == ' ') && ! is_quote_enclosed))
        break;
      if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */
	{
	  /* Find the *last* '.', since the others are package qualifiers. */
	  for (p1 = p;  *p1;  p1++)
	    {
	      if (*p1 == '.')
		p = p1;
	    }
	  break;
	}
    }
  while (p[0] == ' ' || p[0] == '\t') p++;
  /* if the closing double quote was left at the end, remove it */
  if (is_quote_enclosed && ((pp = strchr (p, '"')) != NULL))
    if (!*(pp+1))
      *pp = '\0';

  /* Now that we've safely parsed the first half,
   * put back ',' so outer layers can see it 
   */
  if (has_comma)
    *ii = ',';

  if ((p[0] == ':' || p[0] == '.') && !has_parens)
    {
      /*  C++ */
      /*  ... or Java */
      if (is_quoted) *argptr = *argptr+1;
      if (p[0] == '.' || p[1] ==':')
	{
          int ix;
          char * saved_arg2 = *argptr;
          char * temp_end;
          /* First check for "global" namespace specification,
             of the form "::foo". If found, skip over the colons
             and jump to normal symbol processing */
          if ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))
            saved_arg2 += 2;

          /* We have what looks like a class or namespace
             scope specification (A::B), possibly with many
             levels of namespaces or classes (A::B::C::D).

             Some versions of the HP ANSI C++ compiler (as also possibly
             other compilers) generate class/function/member names with
             embedded double-colons if they are inside namespaces. To
             handle this, we loop a few times, considering larger and
             larger prefixes of the string as though they were single
             symbols.  So, if the initially supplied string is
             A::B::C::D::foo, we have to look up "A", then "A::B",
             then "A::B::C", then "A::B::C::D", and finally
             "A::B::C::D::foo" as single, monolithic symbols, because
             A, B, C or D may be namespaces.

             Note that namespaces can nest only inside other
             namespaces, and not inside classes.  So we need only
             consider *prefixes* of the string; there is no need to look up
             "B::C" separately as a symbol in the previous example. */
          
          p2 = p; /* save for restart */
          while (1)
            {
  	     /* Extract the class name.  */
	     p1 = p;
	     while (p != *argptr && p[-1] == ' ') --p;
	     copy = (char *) alloca (p - *argptr + 1);
	     memcpy (copy, *argptr, p - *argptr);
	     copy[p - *argptr] = 0;

	     /* Discard the class name from the arg.  */
	     p = p1 + (p1[0] == ':' ? 2 : 1);
	     while (*p == ' ' || *p == '\t') p++;
	     *argptr = p;

	     sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0, 
				        (struct symtab **)NULL);
       
	     if (sym_class &&
	         (t = check_typedef (SYMBOL_TYPE (sym_class)),
	          (TYPE_CODE (t) == TYPE_CODE_STRUCT
		   || TYPE_CODE (t) == TYPE_CODE_UNION)))
	       {
	         /* Arg token is not digits => try it as a function name
		    Find the next token(everything up to end or next blank). */
	         if (**argptr
		     && strchr (gdb_completer_quote_characters, **argptr) != NULL)
		   {
		     p = skip_quoted(*argptr);
		     *argptr = *argptr + 1;
		   }
	         else
		   {
	             p = *argptr;
	             while (*p && *p!=' ' && *p!='\t' && *p!=',' && *p!=':') p++;
		   }
/*
	      q = operator_chars (*argptr, &q1);
	      if (q1 - q)
		{
		  char *opname;
		  char *tmp = alloca (q1 - q + 1);
		  memcpy (tmp, q, q1 - q);
		  tmp[q1 - q] = '\0';
		  opname = cplus_mangle_opname (tmp, DMGL_ANSI);
		  if (opname == NULL)
		    {
		      error_begin ();
		      printf_filtered ("no mangling for \"%s\"\n", tmp);
		      cplusplus_hint (saved_arg);
		      return_to_top_level (RETURN_ERROR);
		    }
		  copy = (char*) alloca (3 + strlen(opname));
		  sprintf (copy, "__%s", opname);
		  p = q1;
		}
	      else
*/
		   {
		     copy = (char *) alloca (p - *argptr + 1 );
		     memcpy (copy, *argptr, p - *argptr);
		     copy[p - *argptr] = '\0';
		     if (p != *argptr
		         && copy[p - *argptr - 1]
		         && strchr (gdb_completer_quote_characters,
				    copy[p - *argptr - 1]) != NULL)
		       copy[p - *argptr - 1] = '\0';
		   }

	         /* no line number may be specified */
	         while (*p == ' ' || *p == '\t') p++;
	         *argptr = p;

	         sym = 0;
	         i1 = 0;		/*  counter for the symbol array */
	         sym_arr = (struct symbol **) alloca(total_number_of_methods (t)
						     * sizeof(struct symbol *));

	         if (destructor_name_p (copy, t))
		   {
		     /* Destructors are a special case.  */
		     int m_index, f_index;

		     if (get_destructor_fn_field (t, &m_index, &f_index))
		       {
		         struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index);

		         sym_arr[i1] =
			   lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index),
				          NULL, VAR_NAMESPACE, (int *) NULL,
				          (struct symtab **)NULL);
		         if (sym_arr[i1])
			   i1++;
		       }
		   }
	         else
		   i1 = find_methods (t, copy, sym_arr);
	         if (i1 == 1)
		   {
		     /* There is exactly one field with that name.  */
		     sym = sym_arr[0];

		     if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
		       {
		         values.sals = (struct symtab_and_line *)
			   xmalloc (sizeof (struct symtab_and_line));
		         values.nelts = 1;
		         values.sals[0] = find_function_start_sal (sym,
				 				   funfirstline);
		       }
		     else
		       {
		         values.nelts = 0;
		       }
		     return values;
		   }
	         if (i1 > 0)
		   {
		     /* There is more than one field with that name
		        (overloaded).  Ask the user which one to use.  */
		     return decode_line_2 (sym_arr, i1, funfirstline, canonical);
		   }
	         else
		   {
		     char *tmp;

		     if (OPNAME_PREFIX_P (copy))
		       {
		         tmp = (char *)alloca (strlen (copy+3) + 9);
		         strcpy (tmp, "operator ");
		         strcat (tmp, copy+3);
		       }
		     else
		       tmp = copy;
		     error_begin ();
		     if (tmp[0] == '~')
		       printf_filtered
		         ("the class `%s' does not have destructor defined\n",
		          SYMBOL_SOURCE_NAME(sym_class));
		     else
		       printf_filtered
		         ("the class %s does not have any method named %s\n",
		          SYMBOL_SOURCE_NAME(sym_class), tmp);
		     cplusplus_hint (saved_arg);
		     return_to_top_level (RETURN_ERROR);
		   }
	       }

             /* Move pointer up to next possible class/namespace token */
              p = p2 + 1; /* restart with old value +1 */
              /* Move pointer ahead to next double-colon */
              while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\'')) {
                if (p[0] == '<') {
                  temp_end = find_template_name_end (p);
                  if (!temp_end)
                    error ("malformed template specification in command");
                  p = temp_end;
                }
                else if ((p[0] == ':') && (p[1] == ':'))
                  break; /* found double-colon */
                else
                  p++;
              }
              
              if (*p != ':')
                break; /* out of the while (1) */

              p2 = p; /* save restart for next time around */
              *argptr = saved_arg2; /* restore argptr */
            } /* while (1) */

          /* Last chance attempt -- check entire name as a symbol */
          /* Use "copy" in preparation for jumping out of this block,
             to be consistent with usage following the jump target */
          copy = (char *) alloca (p - saved_arg2 + 1);
          memcpy (copy, saved_arg2, p - saved_arg2);
          /* Note: if is_quoted should be true, we snuff out quote here anyway */
          copy[p-saved_arg2] = '\000'; 
          /* Set argptr to skip over the name */
          *argptr = (*p == '\'') ? p + 1 : p;
          /* Look up entire name */
          sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
          s = (struct symtab *) 0;
          /* Prepare to jump: restore the " if (condition)" so outer layers see it */
          /* Symbol was found --> jump to normal symbol processing.
             Code following "symbol_found" expects "copy" to have the
             symbol name, "sym" to have the symbol pointer, "s" to be
             a specified file's symtab, and sym_symtab to be the symbol's
             symtab. */
          /* By jumping there we avoid falling through the FILE:LINE and
             FILE:FUNC processing stuff below */
          if (sym)
            goto symbol_found;

          /* Couldn't find any interpretation as classes/namespaces, so give up */
          error_begin ();
          /* The quotes are important if copy is empty.  */
          printf_filtered
            ("Can't find member of namespace, class, struct, or union named \"%s\"\n", copy);
          cplusplus_hint (saved_arg);
          return_to_top_level (RETURN_ERROR);
        }
      /*  end of C++  */


      /* Extract the file name.  */
      p1 = p;
      while (p != *argptr && p[-1] == ' ') --p;
      if ((*p == '"') && is_quote_enclosed) --p;
      copy = (char *) alloca (p - *argptr + 1);
      if ((**argptr == '"') && is_quote_enclosed)
        {
          memcpy (copy, *argptr + 1, p - *argptr - 1);
          /* It may have the ending quote right after the file name */
          if (copy[p - *argptr - 2] == '"')
            copy[p - *argptr - 2] = 0;
          else
            copy[p - *argptr - 1] = 0;
        }
      else
        {
          memcpy (copy, *argptr, p - *argptr);
          copy[p - *argptr] = 0;
        }

      /* Find that file's data.  */
      s = lookup_symtab (copy);
      if (s == 0)
	{
	  if (!have_full_symbols () && !have_partial_symbols ())
	    error (no_symtab_msg);
	  error ("No source file named %s.", copy);
	}

      /* Discard the file name from the arg.  */
      p = p1 + 1;
      while (*p == ' ' || *p == '\t') p++;
      *argptr = p;
    }
#if 0
  /* No one really seems to know why this was added. It certainly
     breaks the command line, though, whenever the passed
     name is of the form ClassName::Method. This bit of code
     singles out the class name, and if funfirstline is set (for
     example, you are setting a breakpoint at this function),
     you get an error. This did not occur with earlier
     verions, so I am ifdef'ing this out. 3/29/99 */
  else {
    /* Check if what we have till now is a symbol name */

    /* We may be looking at a template instantiation such
       as "foo<int>".  Check here whether we know about it,
       instead of falling through to the code below which
       handles ordinary function names, because that code
       doesn't like seeing '<' and '>' in a name -- the
       skip_quoted call doesn't go past them.  So see if we
       can figure it out right now. */ 

    copy = (char *) alloca (p - *argptr + 1);
    memcpy (copy, *argptr, p - *argptr);
    copy[p - *argptr] = '\000';
    sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
    if (sym) {
      /* Yes, we have a symbol; jump to symbol processing */
      /* Code after symbol_found expects S, SYM_SYMTAB, SYM, 
         and COPY to be set correctly */ 
      *argptr = (*p == '\'') ? p + 1 : p;
      s = (struct symtab *) 0;
      goto symbol_found;
    }
    /* Otherwise fall out from here and go to file/line spec
       processing, etc. */ 
  }
#endif

  /* S is specified file's symtab, or 0 if no file specified.
     arg no longer contains the file name.  */

  /* Check whether arg is all digits (and sign) */

  q = *argptr;
  if (*q == '-' || *q == '+') q++;
  while (*q >= '0' && *q <= '9')
    q++;

  if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ','))
    {
      /* We found a token consisting of all digits -- at least one digit.  */
      enum sign {none, plus, minus} sign = none;

      /* We might need a canonical line spec if no file was specified.  */
      int need_canonical = (s == 0) ? 1 : 0;

      /* This is where we need to make sure that we have good defaults.
	 We must guarantee that this section of code is never executed
	 when we are called with just a function name, since
	 select_source_symtab calls us with such an argument  */

      if (s == 0 && default_symtab == 0)
	{
	  select_source_symtab (0);
	  default_symtab = current_source_symtab;
	  default_line = current_source_line;
	}

      if (**argptr == '+')
	sign = plus, (*argptr)++;
      else if (**argptr == '-')
	sign = minus, (*argptr)++;
      val.line = atoi (*argptr);
      switch (sign)
	{
	case plus:
	  if (q == *argptr)
	    val.line = 5;
	  if (s == 0)
	    val.line = default_line + val.line;
	  break;
	case minus:
	  if (q == *argptr)
	    val.line = 15;
	  if (s == 0)
	    val.line = default_line - val.line;
	  else
	    val.line = 1;
	  break;
	case none:
	  break;	/* No need to adjust val.line.  */
	}

      while (*q == ' ' || *q == '\t') q++;
      *argptr = q;
      if (s == 0)
	s = default_symtab;

      /* It is possible that this source file has more than one symtab, 
	 and that the new line number specification has moved us from the
	 default (in s) to a new one.  */
      val.symtab = find_line_symtab (s, val.line, NULL, NULL);
      if (val.symtab == 0)
	val.symtab = s;
     
      val.pc = 0;
      values.sals = (struct symtab_and_line *)
	xmalloc (sizeof (struct symtab_and_line));
      values.sals[0] = val;
      values.nelts = 1;
      if (need_canonical)
	build_canonical_line_spec (values.sals, NULL, canonical);
      return values;
    }

  /* Arg token is not digits => try it as a variable name
     Find the next token (everything up to end or next whitespace).  */

  if (**argptr == '$')		/* May be a convenience variable */
    p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1));  /* One or two $ chars possible */
  else if (is_quoted)
    {
      p = skip_quoted (*argptr);
      if (p[-1] != '\'')
        error ("Unmatched single quote.");
    }
  else if (has_parens)
    {
      p = pp+1;
    }
  else 
    {
      p = skip_quoted(*argptr);
    }

  copy = (char *) alloca (p - *argptr + 1);
  memcpy (copy, *argptr, p - *argptr);
  copy[p - *argptr] = '\0';
  if (p != *argptr
      && copy[0]
      && copy[0] == copy [p - *argptr - 1]
      && strchr (gdb_completer_quote_characters, copy[0]) != NULL)
    {
      copy [p - *argptr - 1] = '\0';
      copy++;
    }
  while (*p == ' ' || *p == '\t') p++;
  *argptr = p;

  /* If it starts with $: may be a legitimate variable or routine name
     (e.g. HP-UX millicode routines such as $$dyncall), or it may
     be history value, or it may be a convenience variable */ 

  if (*copy == '$')
    {
      value_ptr valx;
      int index = 0;
      int need_canonical = 0;

      p = (copy[1] == '$') ? copy + 2 : copy + 1;
      while (*p >= '0' && *p <= '9')
        p++;
      if (!*p) /* reached end of token without hitting non-digit */
        {
          /* We have a value history reference */
          sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index);
          valx = access_value_history ((copy[1] == '$') ? -index : index);
          if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
            error ("History values used in line specs must have integer values.");
        }
      else 
        {
          /* Not all digits -- may be user variable/function or a
              convenience variable */
          
          /* Look up entire name as a symbol first */
          sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab); 
          s = (struct symtab *) 0;
          need_canonical = 1;
          /* Symbol was found --> jump to normal symbol processing.
             Code following "symbol_found" expects "copy" to have the
             symbol name, "sym" to have the symbol pointer, "s" to be
             a specified file's symtab, and sym_symtab to be the symbol's
             symtab. */
          if (sym)
            goto symbol_found;

          /* If symbol was not found, look in minimal symbol tables */ 
          msymbol = lookup_minimal_symbol (copy, 0, 0);
          /* Min symbol was found --> jump to minsym processing. */ 
          if (msymbol)
            goto minimal_symbol_found;
          
          /* Not a user variable or function -- must be convenience variable */
          need_canonical = (s == 0) ? 1 : 0;
          valx = value_of_internalvar (lookup_internalvar (copy + 1));
          if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
            error ("Convenience variables used in line specs must have integer values.");
        }

      /* Either history value or convenience value from above, in valx */ 
      val.symtab = s ? s : default_symtab;
      val.line = value_as_long (valx);
      val.pc = 0;

      values.sals = (struct symtab_and_line *)xmalloc (sizeof val);
      values.sals[0] = val;
      values.nelts = 1;

      if (need_canonical)
	build_canonical_line_spec (values.sals, NULL, canonical);

      return values;
    }


  /* Look up that token as a variable.
     If file specified, use that file's per-file block to start with.  */

  sym = lookup_symbol (copy,
		       (s ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)
			: get_selected_block ()),
		       VAR_NAMESPACE, 0, &sym_symtab);
  
symbol_found:   /* We also jump here from inside the C++ class/namespace 
                   code on finding a symbol of the form "A::B::C" */

  if (sym != NULL)
    {
      if (SYMBOL_CLASS (sym) == LOC_BLOCK)
	{
	  /* Arg is the name of a function */
	  values.sals = (struct symtab_and_line *)
	    xmalloc (sizeof (struct symtab_and_line));
	  values.sals[0] = find_function_start_sal (sym, funfirstline);
	  values.nelts = 1;

	  /* Don't use the SYMBOL_LINE; if used at all it points to
	     the line containing the parameters or thereabouts, not
	     the first line of code.  */

	  /* We might need a canonical line spec if it is a static
	     function.  */
	  if (s == 0)
	    {
	      struct blockvector *bv = BLOCKVECTOR (sym_symtab);
	      struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
	      if (lookup_block_symbol (b, copy, VAR_NAMESPACE) != NULL)
		build_canonical_line_spec (values.sals, copy, canonical);
	    }
	  return values;
	}
      else
	{
	  if (funfirstline)
	    error ("\"%s\" is not a function", copy);
	  else if (SYMBOL_LINE (sym) != 0)
	    {
	      /* We know its line number.  */
	      values.sals = (struct symtab_and_line *)
		xmalloc (sizeof (struct symtab_and_line));
	      values.nelts = 1;
	      memset (&values.sals[0], 0, sizeof (values.sals[0]));
	      values.sals[0].symtab = sym_symtab;
	      values.sals[0].line = SYMBOL_LINE (sym);
	      return values;
	    }
	  else
	    /* This can happen if it is compiled with a compiler which doesn't
	       put out line numbers for variables.  */
	    /* FIXME: Shouldn't we just set .line and .symtab to zero
	       and return?  For example, "info line foo" could print
	       the address.  */
	    error ("Line number not known for symbol \"%s\"", copy);
	}
    }

  msymbol = lookup_minimal_symbol (copy, NULL, NULL);

minimal_symbol_found: /* We also jump here from the case for variables
                         that begin with '$' */
  
  if (msymbol != NULL)
    {
      values.sals = (struct symtab_and_line *)
	xmalloc (sizeof (struct symtab_and_line));
      values.sals[0] = find_pc_sect_line ( SYMBOL_VALUE_ADDRESS (msymbol), 
					   (struct sec *)0,0 );
      values.sals[0].section = SYMBOL_BFD_SECTION (msymbol);
      if (funfirstline)
	{
	  values.sals[0].pc += FUNCTION_START_OFFSET;
	  values.sals[0].pc = SKIP_PROLOGUE (values.sals[0].pc);
	}
      values.nelts = 1;
      return values;
    }

  if (!have_full_symbols () &&
      !have_partial_symbols () && !have_minimal_symbols ())
    error (no_symtab_msg);

  error ("Function \"%s\" not defined.", copy);
  return values;	/* for lint */
}

struct symtabs_and_lines
decode_line_spec (string, funfirstline)
     char *string;
     int funfirstline;
{
  struct symtabs_and_lines sals;
  if (string == 0)
    error ("Empty line specification.");
  sals = decode_line_1 (&string, funfirstline,
			current_source_symtab, current_source_line,
			(char ***)NULL);
  if (*string)
    error ("Junk at end of line specification: %s", string);
  return sals;
}

/* Given a list of NELTS symbols in SYM_ARR, return a list of lines to
   operate on (ask user if necessary).
   If CANONICAL is non-NULL return a corresponding array of mangled names
   as canonical line specs there.  */

static struct symtabs_and_lines
decode_line_2 (sym_arr, nelts, funfirstline, canonical)
     struct symbol *sym_arr[];
     int nelts;
     int funfirstline;
     char ***canonical;
{
  struct symtabs_and_lines values, return_values;
  char *args, *arg1;
  int i;
  char *prompt;
  char *symname;
  struct cleanup *old_chain;
  char **canonical_arr = (char **)NULL;

  values.sals = (struct symtab_and_line *) 
    alloca (nelts * sizeof(struct symtab_and_line));
  return_values.sals = (struct symtab_and_line *) 
    xmalloc (nelts * sizeof(struct symtab_and_line));
  old_chain = make_cleanup (free, return_values.sals);

  if (canonical)
    {
      canonical_arr = (char **) xmalloc (nelts * sizeof (char *));
      make_cleanup (free, canonical_arr);
      memset (canonical_arr, 0, nelts * sizeof (char *));
      *canonical = canonical_arr;
    }

  i = 0;
  printf_unfiltered("[0] cancel\n[1] all\n");
  while (i < nelts)
    {
      INIT_SAL (&return_values.sals[i]);	/* initialize to zeroes */
      INIT_SAL (&values.sals[i]);
      if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK)
	{
	  values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline);
	  printf_unfiltered ("[%d] %s at %s:%d\n",
			     (i+2),
			     SYMBOL_SOURCE_NAME (sym_arr[i]),
			     values.sals[i].symtab->filename,
			     values.sals[i].line);
	}
      else
	printf_unfiltered ("?HERE\n");
      i++;
    }
  
  if ((prompt = getenv ("PS2")) == NULL)
    {
      prompt = "> ";
    }
  args = command_line_input (prompt, 0, "overload-choice");
  
  if (args == 0 || *args == 0)
    error_no_arg ("one or more choice numbers");

  i = 0;
  while (*args)
    {
      int num;

      arg1 = args;
      while (*arg1 >= '0' && *arg1 <= '9') arg1++;
      if (*arg1 && *arg1 != ' ' && *arg1 != '\t')
	error ("Arguments must be choice numbers.");

      num = atoi (args);

      if (num == 0)
	error ("cancelled");
      else if (num == 1)
	{
	  if (canonical_arr)
	    {
	      for (i = 0; i < nelts; i++)
		{
	          if (canonical_arr[i] == NULL)
		    {
		      symname = SYMBOL_NAME (sym_arr[i]);
	              canonical_arr[i] = savestring (symname, strlen (symname));
		    }
		}
	    }
	  memcpy (return_values.sals, values.sals,
		  (nelts * sizeof(struct symtab_and_line)));
	  return_values.nelts = nelts;
	  discard_cleanups (old_chain);
	  return return_values;
	}

      if (num >= nelts + 2)
	{
	  printf_unfiltered ("No choice number %d.\n", num);
	}
      else
	{
	  num -= 2;
	  if (values.sals[num].pc)
	    {
	      if (canonical_arr)
		{
		  symname = SYMBOL_NAME (sym_arr[num]);
		  make_cleanup (free, symname);
		  canonical_arr[i] = savestring (symname, strlen (symname));
		}
	      return_values.sals[i++] = values.sals[num];
	      values.sals[num].pc = 0;
	    }
	  else
	    {
	      printf_unfiltered ("duplicate request for %d ignored.\n", num);
	    }
	}

      args = arg1;
      while (*args == ' ' || *args == '\t') args++;
    }
  return_values.nelts = i;
  discard_cleanups (old_chain);
  return return_values;
}


/* Slave routine for sources_info.  Force line breaks at ,'s.
   NAME is the name to print and *FIRST is nonzero if this is the first
   name printed.  Set *FIRST to zero.  */
static void
output_source_filename (name, first)
     char *name;
     int *first;
{
  /* Table of files printed so far.  Since a single source file can
     result in several partial symbol tables, we need to avoid printing
     it more than once.  Note: if some of the psymtabs are read in and
     some are not, it gets printed both under "Source files for which
     symbols have been read" and "Source files for which symbols will
     be read in on demand".  I consider this a reasonable way to deal
     with the situation.  I'm not sure whether this can also happen for
     symtabs; it doesn't hurt to check.  */
  static char **tab = NULL;
  /* Allocated size of tab in elements.
     Start with one 256-byte block (when using GNU malloc.c).
     24 is the malloc overhead when range checking is in effect.  */
  static int tab_alloc_size = (256 - 24) / sizeof (char *);
  /* Current size of tab in elements.  */
  static int tab_cur_size;

  char **p;

  if (*first)
    {
      if (tab == NULL)
	tab = (char **) xmalloc (tab_alloc_size * sizeof (*tab));
      tab_cur_size = 0;
    }

  /* Is NAME in tab?  */
  for (p = tab; p < tab + tab_cur_size; p++)
    if (STREQ (*p, name))
      /* Yes; don't print it again.  */
      return;
  /* No; add it to tab.  */
  if (tab_cur_size == tab_alloc_size)
    {
      tab_alloc_size *= 2;
      tab = (char **) xrealloc ((char *) tab, tab_alloc_size * sizeof (*tab));
    }
  tab[tab_cur_size++] = name;

  if (*first)
    {
      *first = 0;
    }
  else
    {
      printf_filtered (", ");
    }

  wrap_here ("");
  fputs_filtered (name, gdb_stdout);
}  

static void
sources_info (ignore, from_tty)
     char *ignore;
     int from_tty;
{
  register struct symtab *s;
  register struct partial_symtab *ps;
  register struct objfile *objfile;
  int first;
  
  if (!have_full_symbols () && !have_partial_symbols ())
    {
      error (no_symtab_msg);
    }
  
  printf_filtered ("Source files for which symbols have been read in:\n\n");

  first = 1;
  ALL_SYMTABS (objfile, s)
    {
      output_source_filename (s -> filename, &first);
    }
  printf_filtered ("\n\n");
  
  printf_filtered ("Source files for which symbols will be read in on demand:\n\n");

  first = 1;
  ALL_PSYMTABS (objfile, ps)
    {
      if (!ps->readin)
	{
	  output_source_filename (ps -> filename, &first);
	}
    }
  printf_filtered ("\n");
}

static int
file_matches (file, files, nfiles)
     char *file;
     char *files[];
     int nfiles;
{
  int i;

  if (file != NULL && nfiles != 0)
    {
      for (i = 0; i < nfiles; i++)
        {
          if (strcmp (files[i], basename (file)) == 0)
            return 1;
        }
    }
  else if (nfiles == 0)
    return 1;
  return 0;
}

/* Free any memory associated with a search. */
void
free_search_symbols (symbols)
     struct symbol_search *symbols;
{
  struct symbol_search *p;
  struct symbol_search *next;

  for (p = symbols; p != NULL; p = next)
    {
      next = p->next;
      free (p);
    }
}

/* Search the symbol table for matches to the regular expression REGEXP,
   returning the results in *MATCHES.

   Only symbols of KIND are searched:
     FUNCTIONS_NAMESPACE - search all functions
     TYPES_NAMESPACE     - search all type names
     METHODS_NAMESPACE   - search all methods NOT IMPLEMENTED
     VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
                         and constants (enums)

   free_search_symbols should be called when *MATCHES is no longer needed.
*/
void
search_symbols (regexp, kind, nfiles, files, matches)
     char *regexp;
     namespace_enum kind;
     int nfiles;
     char *files[];
     struct symbol_search **matches;
     
{
  register struct symtab *s;
  register struct partial_symtab *ps;
  register struct blockvector *bv;
  struct blockvector *prev_bv = 0;
  register struct block *b;
  register int i = 0;
  register int j;
  register struct symbol *sym;
  struct partial_symbol **psym;
  struct objfile *objfile;
  struct minimal_symbol *msymbol;
  char *val;
  int found_misc = 0;
  static enum minimal_symbol_type types[]
    = {mst_data, mst_text, mst_abs, mst_unknown};
  static enum minimal_symbol_type types2[]
    = {mst_bss,  mst_file_text, mst_abs, mst_unknown};
  static enum minimal_symbol_type types3[]
    = {mst_file_data,  mst_solib_trampoline, mst_abs, mst_unknown};
  static enum minimal_symbol_type types4[]
    = {mst_file_bss,   mst_text, mst_abs, mst_unknown};
  enum minimal_symbol_type ourtype;
  enum minimal_symbol_type ourtype2;
  enum minimal_symbol_type ourtype3;
  enum minimal_symbol_type ourtype4;
  struct symbol_search *sr;
  struct symbol_search *psr;
  struct symbol_search *tail;
  struct cleanup *old_chain = NULL;

  if (kind < LABEL_NAMESPACE)
    error ("must search on specific namespace");

  ourtype = types[(int) (kind - LABEL_NAMESPACE)];
  ourtype2 = types2[(int) (kind - LABEL_NAMESPACE)];
  ourtype3 = types3[(int) (kind - LABEL_NAMESPACE)];
  ourtype4 = types4[(int) (kind - LABEL_NAMESPACE)];

  sr = *matches = NULL;
  tail = NULL;

  if (regexp != NULL)
    {
      /* Make sure spacing is right for C++ operators.
         This is just a courtesy to make the matching less sensitive
         to how many spaces the user leaves between 'operator'
         and <TYPENAME> or <OPERATOR>. */
      char *opend;
      char *opname = operator_chars (regexp, &opend);
      if (*opname)
        {
          int fix = -1; /* -1 means ok; otherwise number of spaces needed. */
          if (isalpha(*opname) || *opname == '_' || *opname == '$')
            {
              /* There should 1 space between 'operator' and 'TYPENAME'. */
              if (opname[-1] != ' ' || opname[-2] == ' ')
                fix = 1;
            }
          else
            {
              /* There should 0 spaces between 'operator' and 'OPERATOR'. */
              if (opname[-1] == ' ')
                fix = 0;
            }
          /* If wrong number of spaces, fix it. */
          if (fix >= 0)
            {
              char *tmp = (char*) alloca(opend-opname+10);
              sprintf(tmp, "operator%.*s%s", fix, " ", opname);
              regexp = tmp;
            }
        }
      
      if (0 != (val = re_comp (regexp)))
        error ("Invalid regexp (%s): %s", val, regexp);
    }

  /* Search through the partial symtabs *first* for all symbols
     matching the regexp.  That way we don't have to reproduce all of
     the machinery below. */

  ALL_PSYMTABS (objfile, ps)
    {
      struct partial_symbol **bound, **gbound, **sbound;
      int keep_going = 1;

      if (ps->readin) continue;

      gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms;
      sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms;
      bound = gbound;
      
      /* Go through all of the symbols stored in a partial
         symtab in one loop. */
      psym = objfile->global_psymbols.list + ps->globals_offset;
      while (keep_going)
        {
          if (psym >= bound)
            {
              if (bound == gbound && ps->n_static_syms != 0)
                {
                  psym = objfile->static_psymbols.list + ps->statics_offset;
                  bound = sbound;
                }
              else
                keep_going = 0;
              continue;
            }
          else
            {
              QUIT;

              /* If it would match (logic taken from loop below)
                 load the file and go on to the next one */
              if (file_matches (ps->filename, files, nfiles)
                  && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym))
                      && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF
                           && SYMBOL_CLASS (*psym) != LOC_BLOCK)
                          || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)
                          || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF)
                          || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK))))
                {
                  PSYMTAB_TO_SYMTAB(ps);
                  keep_going = 0;
                }
            }
          psym++;
        }
    }

  /* Here, we search through the minimal symbol tables for functions
     and variables that match, and force their symbols to be read.
     This is in particular necessary for demangled variable names,
     which are no longer put into the partial symbol tables.
     The symbol will then be found during the scan of symtabs below.

     For functions, find_pc_symtab should succeed if we have debug info
     for the function, for variables we have to call lookup_symbol
     to determine if the variable has debug info.
     If the lookup fails, set found_misc so that we will rescan to print
     any matching symbols without debug info.
  */

  if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE))
    {
      ALL_MSYMBOLS (objfile, msymbol)
        {
          if (MSYMBOL_TYPE (msymbol) == ourtype ||
              MSYMBOL_TYPE (msymbol) == ourtype2 ||
              MSYMBOL_TYPE (msymbol) == ourtype3 ||
              MSYMBOL_TYPE (msymbol) == ourtype4)
            {
              if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
                {
                  if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))
                    {
                      if (kind == FUNCTIONS_NAMESPACE
                          || lookup_symbol (SYMBOL_NAME (msymbol), 
                                            (struct block *) NULL,
                                            VAR_NAMESPACE,
                                            0, (struct symtab **) NULL) == NULL)
                        found_misc = 1;
                    }
                }
            }
        }
    }

  ALL_SYMTABS (objfile, s)
    {
      bv = BLOCKVECTOR (s);
      /* Often many files share a blockvector.
         Scan each blockvector only once so that
         we don't get every symbol many times.
         It happens that the first symtab in the list
         for any given blockvector is the main file.  */
      if (bv != prev_bv)
        for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
          {
            b = BLOCKVECTOR_BLOCK (bv, i);
            /* Skip the sort if this block is always sorted.  */
            if (!BLOCK_SHOULD_SORT (b))
              sort_block_syms (b);
            for (j = 0; j < BLOCK_NSYMS (b); j++)
              {
                QUIT;
                sym = BLOCK_SYM (b, j);
                if (file_matches (s->filename, files, nfiles)
                    && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym))
                        && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF
                             && SYMBOL_CLASS (sym) != LOC_BLOCK
                             && SYMBOL_CLASS (sym) != LOC_CONST)
                            || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)
                            || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
                            || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK))))
                  {
                    /* match */
                    psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
                    psr->block = i;
                    psr->symtab = s;
                    psr->symbol = sym;
                    psr->msymbol = NULL;
                    psr->next = NULL;
                    if (tail == NULL)
                      {
                        sr = psr;
                        old_chain = make_cleanup ((make_cleanup_func) 
                                                  free_search_symbols, sr);
                      }
                    else
                      tail->next = psr;
                    tail = psr;
                  }
              }
          }
      prev_bv = bv;
    }

  /* If there are no eyes, avoid all contact.  I mean, if there are
     no debug symbols, then print directly from the msymbol_vector.  */

  if (found_misc || kind != FUNCTIONS_NAMESPACE)
    {
      ALL_MSYMBOLS (objfile, msymbol)
        {
          if (MSYMBOL_TYPE (msymbol) == ourtype ||
              MSYMBOL_TYPE (msymbol) == ourtype2 ||
              MSYMBOL_TYPE (msymbol) == ourtype3 ||
              MSYMBOL_TYPE (msymbol) == ourtype4)
            {
              if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
                {
                  /* Functions:  Look up by address. */
                  if (kind != FUNCTIONS_NAMESPACE ||
                      (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))))
                    {
                      /* Variables/Absolutes:  Look up by name */
                      if (lookup_symbol (SYMBOL_NAME (msymbol), 
                                         (struct block *) NULL, VAR_NAMESPACE,
                                         0, (struct symtab **) NULL) == NULL)
                        {
                          /* match */
                          psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
                          psr->block = i;
                          psr->msymbol = msymbol;
                          psr->symtab  = NULL;
                          psr->symbol  = NULL;
                          psr->next = NULL;
                          if (tail == NULL)
                            {
                              sr = psr;
                              old_chain = make_cleanup ((make_cleanup_func) 
                                                      free_search_symbols, &sr);
                            }
                          else
                            tail->next = psr;
                          tail = psr;
                        }
                    }
                }
            }
        }
    }

  *matches = sr;
  if (sr != NULL)
    discard_cleanups (old_chain);
}

/* Helper function for symtab_symbol_info, this function uses
   the data returned from search_symbols() to print information
   regarding the match to gdb_stdout.
*/
static void
print_symbol_info (kind, s, sym, block, last)
     namespace_enum kind;
     struct symtab *s;
     struct symbol *sym;
     int block;
     char *last;
{
  if (last == NULL || strcmp (last, s->filename) != 0)
    {
      fputs_filtered ("\nFile ", gdb_stdout);
      fputs_filtered (s->filename, gdb_stdout);
      fputs_filtered (":\n", gdb_stdout);
    }

  if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK)
    printf_filtered ("static ");
	    
  /* Typedef that is not a C++ class */
  if (kind == TYPES_NAMESPACE
      && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE)
    c_typedef_print (SYMBOL_TYPE(sym), sym, gdb_stdout);
  /* variable, func, or typedef-that-is-c++-class */
  else if (kind < TYPES_NAMESPACE || 
           (kind == TYPES_NAMESPACE && 
            SYMBOL_NAMESPACE(sym) == STRUCT_NAMESPACE))
    {
      type_print (SYMBOL_TYPE (sym),
                  (SYMBOL_CLASS (sym) == LOC_TYPEDEF
                   ? "" : SYMBOL_SOURCE_NAME (sym)),
                  gdb_stdout, 0);

      printf_filtered (";\n");
    }
  else
    {
# if 0
      /* Tiemann says: "info methods was never implemented."  */
      char *demangled_name;
      c_type_print_base (TYPE_FN_FIELD_TYPE(t, block),
                         gdb_stdout, 0, 0); 
      c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE(t, block),
                                   gdb_stdout, 0); 
      if (TYPE_FN_FIELD_STUB (t, block))
        check_stub_method (TYPE_DOMAIN_TYPE (type), j, block);
      demangled_name =
        cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, block),
                        DMGL_ANSI | DMGL_PARAMS);
      if (demangled_name == NULL)
        fprintf_filtered (stream, "<badly mangled name %s>",
                          TYPE_FN_FIELD_PHYSNAME (t, block));
      else
        {
          fputs_filtered (demangled_name, stream);
          free (demangled_name);
        }
# endif
    }
}

/* This help function for symtab_symbol_info() prints information
   for non-debugging symbols to gdb_stdout.
*/
static void
print_msymbol_info (msymbol)
     struct minimal_symbol *msymbol;
{
  printf_filtered ("	%08lx  %s\n",
                   (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol),
                   SYMBOL_SOURCE_NAME (msymbol));
}

/* This is the guts of the commands "info functions", "info types", and
   "info variables". It calls search_symbols to find all matches and then
   print_[m]symbol_info to print out some useful information about the
   matches.
*/
static void
symtab_symbol_info (regexp, kind, from_tty)
     char *regexp;
     namespace_enum kind;
     int   from_tty;
{
  static char *classnames[]
    = {"variable", "function", "type", "method"};
  struct symbol_search *symbols;
  struct symbol_search *p;
  struct cleanup *old_chain;
  char *last_filename = NULL;
  int first = 1;

  /* must make sure that if we're interrupted, symbols gets freed */
  search_symbols (regexp, kind, 0, (char **) NULL, &symbols);
  old_chain = make_cleanup ((make_cleanup_func) free_search_symbols, symbols);

  printf_filtered (regexp
                   ? "All %ss matching regular expression \"%s\":\n"
                   : "All defined %ss:\n",
                   classnames[(int) (kind - LABEL_NAMESPACE - 1)], regexp);

  for (p = symbols; p != NULL; p = p->next)
    {
      QUIT;

      if (p->msymbol != NULL)
        {
          if (first)
            {
              printf_filtered ("\nNon-debugging symbols:\n");
              first = 0;
            }
          print_msymbol_info (p->msymbol);
        }
      else
        {
          print_symbol_info (kind,
                             p->symtab,
                             p->symbol,
                             p->block,
                             last_filename);
          last_filename = p->symtab->filename;
        }
    }

  do_cleanups (old_chain);
}

static void
variables_info (regexp, from_tty)
     char *regexp;
     int from_tty;
{
  symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty);
}

static void
functions_info (regexp, from_tty)
     char *regexp;
     int from_tty;
{
  symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty);
}

static void
types_info (regexp, from_tty)
     char *regexp;
     int from_tty;
{
  symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty);
}

#if 0
/* Tiemann says: "info methods was never implemented."  */
static void
methods_info (regexp)
     char *regexp;
{
  symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty);
}
#endif /* 0 */

/* Breakpoint all functions matching regular expression. */
static void
rbreak_command (regexp, from_tty)
     char *regexp;
     int from_tty;
{
  struct symbol_search *ss;
  struct symbol_search *p;
  struct cleanup *old_chain;

  search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss);
  old_chain = make_cleanup ((make_cleanup_func) free_search_symbols, ss);

  for (p = ss; p != NULL; p = p->next)
    {
      if (p->msymbol == NULL)
        {
          char *string = (char *) alloca (strlen (p->symtab->filename)
                                          + strlen (SYMBOL_NAME (p->symbol))
                                          + 4);
          strcpy (string, p->symtab->filename);
          strcat (string, ":'");
          strcat (string, SYMBOL_NAME (p->symbol));
          strcat (string, "'");
          break_command (string, from_tty);
          print_symbol_info (FUNCTIONS_NAMESPACE,
                             p->symtab,
                             p->symbol,
                             p->block,
                             p->symtab->filename);
        }
      else
        {
          break_command (SYMBOL_NAME (p->msymbol), from_tty);
          printf_filtered ("<function, no debug info> %s;\n",
                           SYMBOL_SOURCE_NAME (p->msymbol));
        }
    }

  do_cleanups (old_chain);
}


/* Return Nonzero if block a is lexically nested within block b,
   or if a and b have the same pc range.
   Return zero otherwise. */
int
contained_in (a, b)
     struct block *a, *b;
{
  if (!a || !b)
    return 0;
  return BLOCK_START (a) >= BLOCK_START (b)
      && BLOCK_END (a)   <= BLOCK_END (b);
}


/* Helper routine for make_symbol_completion_list.  */

static int return_val_size;
static int return_val_index;
static char **return_val;

#define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
  do { \
    if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
      /* Put only the mangled name on the list.  */ \
      /* Advantage:  "b foo<TAB>" completes to "b foo(int, int)" */ \
      /* Disadvantage:  "b foo__i<TAB>" doesn't complete.  */ \
      completion_list_add_name \
	(SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
    else \
      completion_list_add_name \
	(SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
  } while (0)

/*  Test to see if the symbol specified by SYMNAME (which is already
    demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
    characters.  If so, add it to the current completion list. */

static void
completion_list_add_name (symname, sym_text, sym_text_len, text, word)
     char *symname;
     char *sym_text;
     int sym_text_len;
     char *text;
     char *word;
{
  int newsize;
  int i;

  /* clip symbols that cannot match */

  if (strncmp (symname, sym_text, sym_text_len) != 0)
    {
      return;
    }

  /* Clip any symbol names that we've already considered.  (This is a
     time optimization)  */

  for (i = 0; i < return_val_index; ++i)
    {
      if (STREQ (symname, return_val[i]))
	{
	  return;
	}
    }
  
  /* We have a match for a completion, so add SYMNAME to the current list
     of matches. Note that the name is moved to freshly malloc'd space. */

  {
    char *new;
    if (word == sym_text)
      {
	new = xmalloc (strlen (symname) + 5);
	strcpy (new, symname);
      }
    else if (word > sym_text)
      {
	/* Return some portion of symname.  */
	new = xmalloc (strlen (symname) + 5);
	strcpy (new, symname + (word - sym_text));
      }
    else
      {
	/* Return some of SYM_TEXT plus symname.  */
	new = xmalloc (strlen (symname) + (sym_text - word) + 5);
	strncpy (new, word, sym_text - word);
	new[sym_text - word] = '\0';
	strcat (new, symname);
      }

    /* Recheck for duplicates if we intend to add a modified symbol.  */
    if (word != sym_text)
      {
	for (i = 0; i < return_val_index; ++i)
	  {
	    if (STREQ (new, return_val[i]))
	      {
		free (new);
		return;
	      }
	  }
      }

    if (return_val_index + 3 > return_val_size)
      {
	newsize = (return_val_size *= 2) * sizeof (char *);
	return_val = (char **) xrealloc ((char *) return_val, newsize);
      }
    return_val[return_val_index++] = new;
    return_val[return_val_index] = NULL;
  }
}

/* Return a NULL terminated array of all symbols (regardless of class) which
   begin by matching TEXT.  If the answer is no symbols, then the return value
   is an array which contains only a NULL pointer.

   Problem: All of the symbols have to be copied because readline frees them.
   I'm not going to worry about this; hopefully there won't be that many.  */

char **
make_symbol_completion_list (text, word)
     char *text;
     char *word;
{
  register struct symbol *sym;
  register struct symtab *s;
  register struct partial_symtab *ps;
  register struct minimal_symbol *msymbol;
  register struct objfile *objfile;
  register struct block *b, *surrounding_static_block = 0;
  register int i, j;
  struct partial_symbol **psym;
  /* The symbol we are completing on.  Points in same buffer as text.  */
  char *sym_text;
  /* Length of sym_text.  */
  int sym_text_len;

  /* Now look for the symbol we are supposed to complete on.
     FIXME: This should be language-specific.  */
  {
    char *p;
    char quote_found;
    char *quote_pos = NULL;

    /* First see if this is a quoted string.  */
    quote_found = '\0';
    for (p = text; *p != '\0'; ++p)
      {
	if (quote_found != '\0')
	  {
	    if (*p == quote_found)
	      /* Found close quote.  */
	      quote_found = '\0';
	    else if (*p == '\\' && p[1] == quote_found)
	      /* A backslash followed by the quote character
		 doesn't end the string.  */
	      ++p;
	  }
	else if (*p == '\'' || *p == '"')
	  {
	    quote_found = *p;
	    quote_pos = p;
	  }
      }
    if (quote_found == '\'')
      /* A string within single quotes can be a symbol, so complete on it.  */
      sym_text = quote_pos + 1;
    else if (quote_found == '"')
      /* A double-quoted string is never a symbol, nor does it make sense
	 to complete it any other way.  */
      return NULL;
    else
      {
	/* It is not a quoted string.  Break it based on the characters
	   which are in symbols.  */
	while (p > text)
	  {
	    if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
	      --p;
	    else
	      break;
	  }
	sym_text = p;
      }
  }

  sym_text_len = strlen (sym_text);

  return_val_size = 100;
  return_val_index = 0;
  return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
  return_val[0] = NULL;

  /* Look through the partial symtabs for all symbols which begin
     by matching SYM_TEXT.  Add each one that you find to the list.  */

  ALL_PSYMTABS (objfile, ps)
    {
      /* If the psymtab's been read in we'll get it when we search
	 through the blockvector.  */
      if (ps->readin) continue;
      
      for (psym = objfile->global_psymbols.list + ps->globals_offset;
	   psym < (objfile->global_psymbols.list + ps->globals_offset
		   + ps->n_global_syms);
	   psym++)
	{
	  /* If interrupted, then quit. */
	  QUIT;
	  COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
	}
      
      for (psym = objfile->static_psymbols.list + ps->statics_offset;
	   psym < (objfile->static_psymbols.list + ps->statics_offset
		   + ps->n_static_syms);
	   psym++)
	{
	  QUIT;
	  COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
	}
    }

  /* At this point scan through the misc symbol vectors and add each
     symbol you find to the list.  Eventually we want to ignore
     anything that isn't a text symbol (everything else will be
     handled by the psymtab code above).  */

  ALL_MSYMBOLS (objfile, msymbol)
    {
      QUIT;
      COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word);
    }

  /* Search upwards from currently selected frame (so that we can
     complete on local vars.  */

  for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
    {
      if (!BLOCK_SUPERBLOCK (b))
	{
	  surrounding_static_block = b; 	/* For elmin of dups */
	}
      
      /* Also catch fields of types defined in this places which match our
	 text string.  Only complete on types visible from current context. */

      for (i = 0; i < BLOCK_NSYMS (b); i++)
	{
	  sym = BLOCK_SYM (b, i);
	  COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
	  if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
	    {
	      struct type *t = SYMBOL_TYPE (sym);
	      enum type_code c = TYPE_CODE (t);

	      if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT)
		{
		  for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++)
		    {
		      if (TYPE_FIELD_NAME (t, j))
			{
			  completion_list_add_name (TYPE_FIELD_NAME (t, j),
						      sym_text, sym_text_len, text, word);
			}
		    }
		}
	    }
	}
    }

  /* Go through the symtabs and check the externs and statics for
     symbols which match.  */

  ALL_SYMTABS (objfile, s)
    {
      QUIT;
      b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
      for (i = 0; i < BLOCK_NSYMS (b); i++)
	{
	  sym = BLOCK_SYM (b, i);
	  COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
	}
    }

  ALL_SYMTABS (objfile, s)
    {
      QUIT;
      b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
      /* Don't do this block twice.  */
      if (b == surrounding_static_block) continue;
      for (i = 0; i < BLOCK_NSYMS (b); i++)
	{
	  sym = BLOCK_SYM (b, i);
	  COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
	}
    }

  return (return_val);
}

/* Determine if PC is in the prologue of a function.  The prologue is the area
   between the first instruction of a function, and the first executable line.
   Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.

   If non-zero, func_start is where we think the prologue starts, possibly
   by previous examination of symbol table information.
 */

int
in_prologue (pc, func_start)
     CORE_ADDR pc;
     CORE_ADDR func_start;
{
  struct symtab_and_line sal;
  CORE_ADDR func_addr, func_end;

  if (!find_pc_partial_function (pc, NULL, &func_addr, &func_end))
    goto nosyms;		/* Might be in prologue */

  sal = find_pc_line (func_addr, 0);

  if (sal.line == 0)
    goto nosyms;

  /* sal.end is the address of the first instruction past sal.line. */
  if (sal.end > func_addr
      && sal.end <= func_end)	/* Is prologue in function? */
    return pc < sal.end;	/* Yes, is pc in prologue? */

  /* The line after the prologue seems to be outside the function.  In this
     case, tell the caller to find the prologue the hard way.  */

  return 1;

/* Come here when symtabs don't contain line # info.  In this case, it is
   likely that the user has stepped into a library function w/o symbols, or
   is doing a stepi/nexti through code without symbols.  */

 nosyms:

/* If func_start is zero (meaning unknown) then we don't know whether pc is
   in the prologue or not.  I.E. it might be. */

  if (!func_start) return 1;

/* We need to call the target-specific prologue skipping functions with the
   function's start address because PC may be pointing at an instruction that
   could be mistakenly considered part of the prologue.  */

  func_start = SKIP_PROLOGUE (func_start);

  return pc < func_start;
}


/* Begin overload resolution functions */
/* Helper routine for make_symbol_completion_list.  */

static int sym_return_val_size;
static int sym_return_val_index;
static struct symbol **sym_return_val;

/*  Test to see if the symbol specified by SYMNAME (which is already
    demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
    characters.  If so, add it to the current completion list. */

static void
overload_list_add_symbol (sym, oload_name)
  struct symbol * sym;
  char * oload_name;
{
  int newsize;
  int i;

  /* Get the demangled name without parameters */
  char * sym_name = cplus_demangle (SYMBOL_NAME (sym), DMGL_ARM | DMGL_ANSI);
  if (!sym_name)
    {
      sym_name = (char *) xmalloc (strlen (SYMBOL_NAME (sym)) + 1);
      strcpy (sym_name, SYMBOL_NAME (sym));
    }

  /* skip symbols that cannot match */
  if (strcmp (sym_name, oload_name) != 0)
    return;

  /* If there is no type information, we can't do anything, so skip */
  if (SYMBOL_TYPE (sym) == NULL)
    return;

  /* skip any symbols that we've already considered. */
  for (i = 0; i < sym_return_val_index; ++i)
    if (!strcmp (SYMBOL_NAME (sym), SYMBOL_NAME (sym_return_val[i])))
      return;

  /* We have a match for an overload instance, so add SYM to the current list
   * of overload instances */
  if (sym_return_val_index + 3 > sym_return_val_size)
    {
      newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *);
      sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize);
    }
  sym_return_val[sym_return_val_index++] = sym;
  sym_return_val[sym_return_val_index] = NULL;
  
  free (sym_name);
}

/* Return a null-terminated list of pointers to function symbols that
 * match name of the supplied symbol FSYM.
 * This is used in finding all overloaded instances of a function name.
 * This has been modified from make_symbol_completion_list.  */


struct symbol **
make_symbol_overload_list (fsym)
  struct symbol * fsym;
{
  register struct symbol *sym;
  register struct symtab *s;
  register struct partial_symtab *ps;
  register struct minimal_symbol *msymbol;
  register struct objfile *objfile;
  register struct block *b, *surrounding_static_block = 0;
  register int i, j;
  struct partial_symbol **psym;
  /* The name we are completing on. */
  char *oload_name = NULL;
  /* Length of name.  */
  int oload_name_len = 0;

  /* Look for the symbol we are supposed to complete on.
   * FIXME: This should be language-specific.  */

  oload_name = cplus_demangle (SYMBOL_NAME (fsym), DMGL_ARM | DMGL_ANSI);
  if (!oload_name)
    {
      oload_name = (char *) xmalloc (strlen (SYMBOL_NAME (fsym)) + 1);
      strcpy (oload_name, SYMBOL_NAME (fsym));
    }
  oload_name_len = strlen (oload_name);

  sym_return_val_size = 100;
  sym_return_val_index = 0;
  sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *));
  sym_return_val[0] = NULL;

  /* Comment and #if 0 from Rajiv Mirani <mirani@cup.hp.com>.
     However, leaving #if 0's around is uncool.  We need to figure out
     what this is really trying to do, decide whether we want that,
     and either fix it or delete it.  --- Jim Blandy, Mar 1999 */

  /* ??? RM: What in hell is this? overload_list_add_symbol expects a symbol,
   * not a partial_symbol or a minimal_symbol. And it looks at the type field
   * of the symbol, and we don't know the type of minimal and partial symbols
   */
#if 0
  /* Look through the partial symtabs for all symbols which begin
     by matching OLOAD_NAME.  Add each one that you find to the list.  */

  ALL_PSYMTABS (objfile, ps)
    {
      /* If the psymtab's been read in we'll get it when we search
	 through the blockvector.  */
      if (ps->readin) continue;
      
      for (psym = objfile->global_psymbols.list + ps->globals_offset;
	   psym < (objfile->global_psymbols.list + ps->globals_offset
		   + ps->n_global_syms);
	   psym++)
	{
	  /* If interrupted, then quit. */
	  QUIT;
	  overload_list_add_symbol (*psym, oload_name);
	}
      
      for (psym = objfile->static_psymbols.list + ps->statics_offset;
	   psym < (objfile->static_psymbols.list + ps->statics_offset
		   + ps->n_static_syms);
	   psym++)
	{
	  QUIT;
	  overload_list_add_symbol (*psym, oload_name);
	}
    }

  /* At this point scan through the misc symbol vectors and add each
     symbol you find to the list.  Eventually we want to ignore
     anything that isn't a text symbol (everything else will be
     handled by the psymtab code above).  */

  ALL_MSYMBOLS (objfile, msymbol)
    {
      QUIT;
      overload_list_add_symbol (msymbol, oload_name);
    }
#endif

  /* Search upwards from currently selected frame (so that we can
     complete on local vars.  */

  for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
    {
      if (!BLOCK_SUPERBLOCK (b))
	{
	  surrounding_static_block = b; 	/* For elimination of dups */
	}
      
      /* Also catch fields of types defined in this places which match our
	 text string.  Only complete on types visible from current context. */

      for (i = 0; i < BLOCK_NSYMS (b); i++)
	{
	  sym = BLOCK_SYM (b, i);
	  overload_list_add_symbol (sym, oload_name);
	}
    }

  /* Go through the symtabs and check the externs and statics for
     symbols which match.  */

  ALL_SYMTABS (objfile, s)
    {
      QUIT;
      b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
      for (i = 0; i < BLOCK_NSYMS (b); i++)
	{
	  sym = BLOCK_SYM (b, i);
	  overload_list_add_symbol (sym, oload_name);
	}
    }

  ALL_SYMTABS (objfile, s)
    {
      QUIT;
      b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
      /* Don't do this block twice.  */
      if (b == surrounding_static_block) continue;
      for (i = 0; i < BLOCK_NSYMS (b); i++)
	{
	  sym = BLOCK_SYM (b, i);
	  overload_list_add_symbol (sym, oload_name);
	}
    }

  free (oload_name);

  return (sym_return_val);
}

/* End of overload resolution functions */


void
_initialize_symtab ()
{
  add_info ("variables", variables_info,
	    "All global and static variable names, or those matching REGEXP.");
  if (dbx_commands)
    add_com("whereis", class_info, variables_info, 
	    "All global and static variable names, or those matching REGEXP.");

  add_info ("functions", functions_info,
	    "All function names, or those matching REGEXP.");

  /* FIXME:  This command has at least the following problems:
     1.  It prints builtin types (in a very strange and confusing fashion).
     2.  It doesn't print right, e.g. with
         typedef struct foo *FOO
	 type_print prints "FOO" when we want to make it (in this situation)
	 print "struct foo *".
     I also think "ptype" or "whatis" is more likely to be useful (but if
     there is much disagreement "info types" can be fixed).  */
  add_info ("types", types_info,
	    "All type names, or those matching REGEXP.");

#if 0
  add_info ("methods", methods_info,
	    "All method names, or those matching REGEXP::REGEXP.\n\
If the class qualifier is omitted, it is assumed to be the current scope.\n\
If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
are listed.");
#endif
  add_info ("sources", sources_info,
	    "Source files in the program.");

  add_com ("rbreak", class_breakpoint, rbreak_command,
	    "Set a breakpoint for all functions matching REGEXP.");

  if (xdb_commands)
    {
      add_com ("lf", class_info, sources_info, "Source files in the program");
      add_com ("lg", class_info, variables_info,
	    "All global and static variable names, or those matching REGEXP.");
    }

  /* Initialize the one built-in type that isn't language dependent... */
  builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0,
				  "<unknown type>", (struct objfile *) NULL);
}