aboutsummaryrefslogtreecommitdiff
path: root/gdb/mdebugread.c
blob: 14d2c0f753ebf76441579a5ed25a33a407252551 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
/* Read a symbol table in ECOFF format (Third-Eye).
   Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
   1997, 1998, 1999, 2000, 2001, 2002
   Free Software Foundation, Inc.
   Original version contributed by Alessandro Forin (af@cs.cmu.edu) at
   CMU.  Major work by Per Bothner, John Gilmore and Ian Lance Taylor
   at Cygnus Support.

   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.  */

/* This module provides the function mdebug_build_psymtabs.  It reads
   ECOFF debugging information into partial symbol tables.  The
   debugging information is read from two structures.  A struct
   ecoff_debug_swap includes the sizes of each ECOFF structure and
   swapping routines; these are fixed for a particular target.  A
   struct ecoff_debug_info points to the debugging information for a
   particular object file.

   ECOFF symbol tables are mostly written in the byte order of the
   target machine.  However, one section of the table (the auxiliary
   symbol information) is written in the host byte order.  There is a
   bit in the other symbol info which describes which host byte order
   was used.  ECOFF thereby takes the trophy from Intel `b.out' for
   the most brain-dead adaptation of a file format to byte order.

   This module can read all four of the known byte-order combinations,
   on any type of host.  */

#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "gdbcore.h"
#include "symfile.h"
#include "objfiles.h"
#include "obstack.h"
#include "buildsym.h"
#include "stabsread.h"
#include "complaints.h"
#include "demangle.h"

/* These are needed if the tm.h file does not contain the necessary
   mips specific definitions.  */

#ifndef MIPS_EFI_SYMBOL_NAME
#define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
extern void ecoff_relocate_efi (struct symbol *, CORE_ADDR);
#include "coff/sym.h"
#include "coff/symconst.h"
typedef struct mips_extra_func_info
  {
    long numargs;
    PDR pdr;
  }
 *mips_extra_func_info_t;
#ifndef RA_REGNUM
#define RA_REGNUM 0
#endif
#endif

#ifdef USG
#include <sys/types.h>
#endif

#include "gdb_stat.h"
#include "gdb_string.h"

#include "bfd.h"

#include "coff/ecoff.h"		/* COFF-like aspects of ecoff files */

#include "libaout.h"		/* Private BFD a.out information.  */
#include "aout/aout64.h"
#include "aout/stab_gnu.h"	/* STABS information */

#include "expression.h"
#include "language.h"		/* For local_hex_string() */

extern void _initialize_mdebugread (void);

/* Provide a way to test if we have both ECOFF and ELF symbol tables.  
   We use this define in order to know whether we should override a 
   symbol's ECOFF section with its ELF section.  This is necessary in 
   case the symbol's ELF section could not be represented in ECOFF.  */
#define ECOFF_IN_ELF(bfd) (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
			   && bfd_get_section_by_name (bfd, ".mdebug") != NULL)


/* We put a pointer to this structure in the read_symtab_private field
   of the psymtab.  */

struct symloc
  {
    /* Our running best guess as to the range of text addresses for
       this psymtab.  After we've read everything in, we use this to
       build pst->text_addrs.  */
    CORE_ADDR textlow, texthigh;

    /* Index of the FDR that this psymtab represents.  */
    int fdr_idx;
    /* The BFD that the psymtab was created from.  */
    bfd *cur_bfd;
    const struct ecoff_debug_swap *debug_swap;
    struct ecoff_debug_info *debug_info;
    struct mdebug_pending **pending_list;
    /* Pointer to external symbols for this file.  */
    EXTR *extern_tab;
    /* Size of extern_tab.  */
    int extern_count;
    enum language pst_language;
  };

#define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private)
#define TEXTLOW(p) (PST_PRIVATE(p)->textlow)
#define TEXTHIGH(p) (PST_PRIVATE(p)->texthigh)
#define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx)
#define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd)
#define DEBUG_SWAP(p) (PST_PRIVATE(p)->debug_swap)
#define DEBUG_INFO(p) (PST_PRIVATE(p)->debug_info)
#define PENDING_LIST(p) (PST_PRIVATE(p)->pending_list)

#define SC_IS_TEXT(sc) ((sc) == scText \
		   || (sc) == scRConst \
          	   || (sc) == scInit \
          	   || (sc) == scFini)
#define SC_IS_DATA(sc) ((sc) == scData \
		   || (sc) == scSData \
		   || (sc) == scRData \
		   || (sc) == scPData \
		   || (sc) == scXData)
#define SC_IS_COMMON(sc) ((sc) == scCommon || (sc) == scSCommon)
#define SC_IS_BSS(sc) ((sc) == scBss)
#define SC_IS_SBSS(sc) ((sc) == scSBss)
#define SC_IS_UNDEF(sc) ((sc) == scUndefined || (sc) == scSUndefined)

/* Various complaints about symbol reading that don't abort the process */

static struct complaint bad_file_number_complaint =
{"bad file number %d", 0, 0};

static struct complaint index_complaint =
{"bad aux index at symbol %s", 0, 0};

static struct complaint aux_index_complaint =
{"bad proc end in aux found from symbol %s", 0, 0};

static struct complaint block_index_complaint =
{"bad aux index at block symbol %s", 0, 0};

static struct complaint unknown_ext_complaint =
{"unknown external symbol %s", 0, 0};

static struct complaint unknown_sym_complaint =
{"unknown local symbol %s", 0, 0};

static struct complaint unknown_st_complaint =
{"with type %d", 0, 0};

static struct complaint block_overflow_complaint =
{"block containing %s overfilled", 0, 0};

static struct complaint basic_type_complaint =
{"cannot map ECOFF basic type 0x%x for %s", 0, 0};

static struct complaint unknown_type_qual_complaint =
{"unknown type qualifier 0x%x", 0, 0};

static struct complaint array_index_type_complaint =
{"illegal array index type for %s, assuming int", 0, 0};

static struct complaint bad_tag_guess_complaint =
{"guessed tag type of %s incorrectly", 0, 0};

static struct complaint block_member_complaint =
{"declaration block contains unhandled symbol type %d", 0, 0};

static struct complaint stEnd_complaint =
{"stEnd with storage class %d not handled", 0, 0};

static struct complaint unknown_mdebug_symtype_complaint =
{"unknown symbol type 0x%x", 0, 0};

static struct complaint stab_unknown_complaint =
{"unknown stabs symbol %s", 0, 0};

static struct complaint pdr_for_nonsymbol_complaint =
{"PDR for %s, but no symbol", 0, 0};

static struct complaint pdr_static_symbol_complaint =
{"can't handle PDR for static proc at 0x%lx", 0, 0};

static struct complaint bad_setjmp_pdr_complaint =
{"fixing bad setjmp PDR from libc", 0, 0};

static struct complaint bad_fbitfield_complaint =
{"can't handle TIR fBitfield for %s", 0, 0};

static struct complaint bad_continued_complaint =
{"illegal TIR continued for %s", 0, 0};

static struct complaint bad_rfd_entry_complaint =
{"bad rfd entry for %s: file %d, index %d", 0, 0};

static struct complaint unexpected_type_code_complaint =
{"unexpected type code for %s", 0, 0};

static struct complaint unable_to_cross_ref_complaint =
{"unable to cross ref btTypedef for %s", 0, 0};

static struct complaint bad_indirect_xref_complaint =
{"unable to cross ref btIndirect for %s", 0, 0};

static struct complaint illegal_forward_tq0_complaint =
{"illegal tq0 in forward typedef for %s", 0, 0};

static struct complaint illegal_forward_bt_complaint =
{"illegal bt %d in forward typedef for %s", 0, 0};

static struct complaint bad_linetable_guess_complaint =
{"guessed size of linetable for %s incorrectly", 0, 0};

static struct complaint bad_ext_ifd_complaint =
{"bad ifd for external symbol: %d (max %d)", 0, 0};

static struct complaint bad_ext_iss_complaint =
{"bad iss for external symbol: %ld (max %ld)", 0, 0};

/* Macros and extra defs */

/* Puns: hard to find whether -g was used and how */

#define MIN_GLEVEL GLEVEL_0
#define compare_glevel(a,b)					\
	(((a) == GLEVEL_3) ? ((b) < GLEVEL_3) :			\
	 ((b) == GLEVEL_3) ? -1 : (int)((b) - (a)))

/* Things that really are local to this module */

/* Remember what we deduced to be the source language of this psymtab. */

static enum language psymtab_language = language_unknown;

/* Current BFD.  */

static bfd *cur_bfd;

/* How to parse debugging information for CUR_BFD.  */

static const struct ecoff_debug_swap *debug_swap;

/* Pointers to debugging information for CUR_BFD.  */

static struct ecoff_debug_info *debug_info;

/* Pointer to current file decriptor record, and its index */

static FDR *cur_fdr;
static int cur_fd;

/* Index of current symbol */

static int cur_sdx;

/* Note how much "debuggable" this image is.  We would like
   to see at least one FDR with full symbols */

static int max_gdbinfo;
static int max_glevel;

/* When examining .o files, report on undefined symbols */

static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs;

/* Pseudo symbol to use when putting stabs into the symbol table.  */

static char stabs_symbol[] = STABS_SYMBOL;

/* Types corresponding to mdebug format bt* basic types.  */

static struct type *mdebug_type_void;
static struct type *mdebug_type_char;
static struct type *mdebug_type_short;
static struct type *mdebug_type_int_32;
#define mdebug_type_int mdebug_type_int_32
static struct type *mdebug_type_int_64;
static struct type *mdebug_type_long_32;
static struct type *mdebug_type_long_64;
static struct type *mdebug_type_long_long_64;
static struct type *mdebug_type_unsigned_char;
static struct type *mdebug_type_unsigned_short;
static struct type *mdebug_type_unsigned_int_32;
static struct type *mdebug_type_unsigned_int_64;
static struct type *mdebug_type_unsigned_long_32;
static struct type *mdebug_type_unsigned_long_64;
static struct type *mdebug_type_unsigned_long_long_64;
static struct type *mdebug_type_adr_32;
static struct type *mdebug_type_adr_64;
static struct type *mdebug_type_float;
static struct type *mdebug_type_double;
static struct type *mdebug_type_complex;
static struct type *mdebug_type_double_complex;
static struct type *mdebug_type_fixed_dec;
static struct type *mdebug_type_float_dec;
static struct type *mdebug_type_string;

/* Types for symbols from files compiled without debugging info.  */

static struct type *nodebug_func_symbol_type;
static struct type *nodebug_var_symbol_type;

/* Nonzero if we have seen ecoff debugging info for a file.  */

static int found_ecoff_debugging_info;

/* Forward declarations */

static int upgrade_type (int, struct type **, int, union aux_ext *,
			 int, char *);

static void parse_partial_symbols (struct objfile *);

static int has_opaque_xref (FDR *, SYMR *);

static int cross_ref (int, union aux_ext *, struct type **, enum type_code,
		      char **, int, char *);

static struct symbol *new_symbol (char *);

static struct type *new_type (char *);

static struct block *new_block (int);

static struct symtab *new_symtab (char *, int, int, struct objfile *);

static struct linetable *new_linetable (int);

static struct blockvector *new_bvect (int);

static struct type *parse_type (int, union aux_ext *, unsigned int, int *,
				int, char *);

static struct symbol *mylookup_symbol (char *, struct block *, namespace_enum,
				       enum address_class);

static struct block *shrink_block (struct block *, struct symtab *);

static void sort_blocks (struct symtab *);

static struct partial_symtab *new_psymtab (char *, struct objfile *);

static void psymtab_to_symtab_1 (struct partial_symtab *, char *);

static void add_block (struct block *, struct symtab *);

static void add_symbol (struct symbol *, struct block *);

static int add_line (struct linetable *, int, CORE_ADDR, int);

static struct linetable *shrink_linetable (struct linetable *);

static void handle_psymbol_enumerators (struct objfile *, FDR *, int,
					CORE_ADDR);

static char *mdebug_next_symbol_text (struct objfile *);

/* Address bounds for the signal trampoline in inferior, if any */

CORE_ADDR sigtramp_address, sigtramp_end;

/* Allocate zeroed memory */

static void *
xzalloc (unsigned int size)
{
  void *p = xmalloc (size);

  memset (p, 0, size);
  return p;
}

/* Exported procedure: Builds a symtab from the PST partial one.
   Restores the environment in effect when PST was created, delegates
   most of the work to an ancillary procedure, and sorts
   and reorders the symtab list at the end */

static void
mdebug_psymtab_to_symtab (struct partial_symtab *pst)
{

  if (!pst)
    return;

  if (info_verbose)
    {
      printf_filtered ("Reading in symbols for %s...", pst->filename);
      gdb_flush (gdb_stdout);
    }

  next_symbol_text_func = mdebug_next_symbol_text;

  psymtab_to_symtab_1 (pst, pst->filename);

  /* Match with global symbols.  This only needs to be done once,
     after all of the symtabs and dependencies have been read in.   */
  scan_file_globals (pst->objfile);

  if (info_verbose)
    printf_filtered ("done.\n");
}

/* File-level interface functions */

/* Find a file descriptor given its index RF relative to a file CF */

static FDR *
get_rfd (int cf, int rf)
{
  FDR *fdrs;
  register FDR *f;
  RFDT rfd;

  fdrs = debug_info->fdr;
  f = fdrs + cf;
  /* Object files do not have the RFD table, all refs are absolute */
  if (f->rfdBase == 0)
    return fdrs + rf;
  (*debug_swap->swap_rfd_in) (cur_bfd,
			      ((char *) debug_info->external_rfd
			       + ((f->rfdBase + rf)
				  * debug_swap->external_rfd_size)),
			      &rfd);
  return fdrs + rfd;
}

/* Return a safer print NAME for a file descriptor */

static char *
fdr_name (FDR *f)
{
  if (f->rss == -1)
    return "<stripped file>";
  if (f->rss == 0)
    return "<NFY>";
  return debug_info->ss + f->issBase + f->rss;
}


/* Read in and parse the symtab of the file OBJFILE.  Symbols from
   different sections are relocated via the SECTION_OFFSETS.  */

void
mdebug_build_psymtabs (struct objfile *objfile,
		       const struct ecoff_debug_swap *swap,
		       struct ecoff_debug_info *info)
{
  cur_bfd = objfile->obfd;
  debug_swap = swap;
  debug_info = info;

  stabsread_new_init ();
  buildsym_new_init ();
  free_header_files ();
  init_header_files ();
        
  /* Make sure all the FDR information is swapped in.  */
  if (info->fdr == (FDR *) NULL)
    {
      char *fdr_src;
      char *fdr_end;
      FDR *fdr_ptr;

      info->fdr = (FDR *) obstack_alloc (&objfile->psymbol_obstack,
					 (info->symbolic_header.ifdMax
					  * sizeof (FDR)));
      fdr_src = info->external_fdr;
      fdr_end = (fdr_src
		 + info->symbolic_header.ifdMax * swap->external_fdr_size);
      fdr_ptr = info->fdr;
      for (; fdr_src < fdr_end; fdr_src += swap->external_fdr_size, fdr_ptr++)
	(*swap->swap_fdr_in) (objfile->obfd, fdr_src, fdr_ptr);
    }

  parse_partial_symbols (objfile);

  /* Take the text ranges the partial symbol scanner computed for each
     of the psymtabs and convert it into the canonical form for
     psymtabs.  */
  {
    struct partial_symtab *p;

    ALL_OBJFILE_PSYMTABS (objfile, p)
      {
        p->textlow = TEXTLOW (p);
        p->texthigh = TEXTHIGH (p);
      }
  }

#if 0
  /* Check to make sure file was compiled with -g.  If not, warn the
     user of this limitation.  */
  if (compare_glevel (max_glevel, GLEVEL_2) < 0)
    {
      if (max_gdbinfo == 0)
	printf_unfiltered ("\n%s not compiled with -g, debugging support is limited.\n",
			   objfile->name);
      printf_unfiltered ("You should compile with -g2 or -g3 for best debugging support.\n");
      gdb_flush (gdb_stdout);
    }
#endif
}

/* Local utilities */

/* Map of FDR indexes to partial symtabs */

struct pst_map
{
  struct partial_symtab *pst;	/* the psymtab proper */
  long n_globals;		/* exported globals (external symbols) */
  long globals_offset;		/* cumulative */
};


/* Utility stack, used to nest procedures and blocks properly.
   It is a doubly linked list, to avoid too many alloc/free.
   Since we might need it quite a few times it is NOT deallocated
   after use. */

static struct parse_stack
  {
    struct parse_stack *next, *prev;
    struct symtab *cur_st;	/* Current symtab. */
    struct block *cur_block;	/* Block in it. */

    /* What are we parsing.  stFile, or stBlock are for files and
       blocks.  stProc or stStaticProc means we have seen the start of a
       procedure, but not the start of the block within in.  When we see
       the start of that block, we change it to stNil, without pushing a
       new block, i.e. stNil means both a procedure and a block.  */

    int blocktype;

    int maxsyms;		/* Max symbols in this block. */
    struct type *cur_type;	/* Type we parse fields for. */
    int cur_field;		/* Field number in cur_type. */
    CORE_ADDR procadr;		/* Start addres of this procedure */
    int numargs;		/* Its argument count */
  }

 *top_stack;			/* Top stack ptr */


/* Enter a new lexical context */

static void
push_parse_stack (void)
{
  struct parse_stack *new;

  /* Reuse frames if possible */
  if (top_stack && top_stack->prev)
    new = top_stack->prev;
  else
    new = (struct parse_stack *) xzalloc (sizeof (struct parse_stack));
  /* Initialize new frame with previous content */
  if (top_stack)
    {
      register struct parse_stack *prev = new->prev;

      *new = *top_stack;
      top_stack->prev = new;
      new->prev = prev;
      new->next = top_stack;
    }
  top_stack = new;
}

/* Exit a lexical context */

static void
pop_parse_stack (void)
{
  if (!top_stack)
    return;
  if (top_stack->next)
    top_stack = top_stack->next;
}


/* Cross-references might be to things we haven't looked at
   yet, e.g. type references.  To avoid too many type
   duplications we keep a quick fixup table, an array
   of lists of references indexed by file descriptor */

struct mdebug_pending
{
  struct mdebug_pending *next;	/* link */
  char *s;			/* the unswapped symbol */
  struct type *t;		/* its partial type descriptor */
};


/* The pending information is kept for an entire object file, and used
   to be in the sym_private field.  I took it out when I split
   mdebugread from mipsread, because this might not be the only type
   of symbols read from an object file.  Instead, we allocate the
   pending information table when we create the partial symbols, and
   we store a pointer to the single table in each psymtab.  */

static struct mdebug_pending **pending_list;

/* Check whether we already saw symbol SH in file FH */

static struct mdebug_pending *
is_pending_symbol (FDR *fh, char *sh)
{
  int f_idx = fh - debug_info->fdr;
  register struct mdebug_pending *p;

  /* Linear search is ok, list is typically no more than 10 deep */
  for (p = pending_list[f_idx]; p; p = p->next)
    if (p->s == sh)
      break;
  return p;
}

/* Add a new symbol SH of type T */

static void
add_pending (FDR *fh, char *sh, struct type *t)
{
  int f_idx = fh - debug_info->fdr;
  struct mdebug_pending *p = is_pending_symbol (fh, sh);

  /* Make sure we do not make duplicates */
  if (!p)
    {
      p = ((struct mdebug_pending *)
	   obstack_alloc (&current_objfile->psymbol_obstack,
			  sizeof (struct mdebug_pending)));
      p->s = sh;
      p->t = t;
      p->next = pending_list[f_idx];
      pending_list[f_idx] = p;
    }
}


/* Parsing Routines proper. */

/* Parse a single symbol. Mostly just make up a GDB symbol for it.
   For blocks, procedures and types we open a new lexical context.
   This is basically just a big switch on the symbol's type.  Argument
   AX is the base pointer of aux symbols for this file (fh->iauxBase).
   EXT_SH points to the unswapped symbol, which is needed for struct,
   union, etc., types; it is NULL for an EXTR.  BIGEND says whether
   aux symbols are big-endian or little-endian.  Return count of
   SYMR's handled (normally one).  */

static int
parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend,
	      struct section_offsets *section_offsets, struct objfile *objfile)
{
  const bfd_size_type external_sym_size = debug_swap->external_sym_size;
  void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in;
  char *name;
  struct symbol *s;
  struct block *b;
  struct mdebug_pending *pend;
  struct type *t;
  struct field *f;
  int count = 1;
  enum address_class class;
  TIR tir;
  long svalue = sh->value;
  int bitsize;

  if (ext_sh == (char *) NULL)
    name = debug_info->ssext + sh->iss;
  else
    name = debug_info->ss + cur_fdr->issBase + sh->iss;

  switch (sh->sc)
    {
    case scText:
    case scRConst:
      /* Do not relocate relative values.
         The value of a stEnd symbol is the displacement from the
         corresponding start symbol value.
         The value of a stBlock symbol is the displacement from the
         procedure address.  */
      if (sh->st != stEnd && sh->st != stBlock)
	sh->value += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
      break;
    case scData:
    case scSData:
    case scRData:
    case scPData:
    case scXData:
      sh->value += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile));
      break;
    case scBss:
    case scSBss:
      sh->value += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile));
      break;
    }

  switch (sh->st)
    {
    case stNil:
      break;

    case stGlobal:		/* external symbol, goes into global block */
      class = LOC_STATIC;
      b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st),
			     GLOBAL_BLOCK);
      s = new_symbol (name);
      SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
      goto data;

    case stStatic:		/* static data, goes into current block. */
      class = LOC_STATIC;
      b = top_stack->cur_block;
      s = new_symbol (name);
      if (SC_IS_COMMON (sh->sc))
	{
	  /* It is a FORTRAN common block.  At least for SGI Fortran the
	     address is not in the symbol; we need to fix it later in
	     scan_file_globals.  */
	  int bucket = hashname (SYMBOL_NAME (s));
	  SYMBOL_VALUE_CHAIN (s) = global_sym_chain[bucket];
	  global_sym_chain[bucket] = s;
	}
      else
	SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
      goto data;

    case stLocal:		/* local variable, goes into current block */
      if (sh->sc == scRegister)
	{
	  class = LOC_REGISTER;
	  svalue = ECOFF_REG_TO_REGNUM (svalue);
	}
      else
	class = LOC_LOCAL;
      b = top_stack->cur_block;
      s = new_symbol (name);
      SYMBOL_VALUE (s) = svalue;

    data:			/* Common code for symbols describing data */
      SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
      SYMBOL_CLASS (s) = class;
      add_symbol (s, b);

      /* Type could be missing if file is compiled without debugging info.  */
      if (SC_IS_UNDEF (sh->sc)
	  || sh->sc == scNil || sh->index == indexNil)
	SYMBOL_TYPE (s) = nodebug_var_symbol_type;
      else
	SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name);
      /* Value of a data symbol is its memory address */
      break;

    case stParam:		/* arg to procedure, goes into current block */
      max_gdbinfo++;
      found_ecoff_debugging_info = 1;
      top_stack->numargs++;

      /* Special GNU C++ name.  */
      if (is_cplus_marker (name[0]) && name[1] == 't' && name[2] == 0)
	name = "this";		/* FIXME, not alloc'd in obstack */
      s = new_symbol (name);

      SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
      switch (sh->sc)
	{
	case scRegister:
	  /* Pass by value in register.  */
	  SYMBOL_CLASS (s) = LOC_REGPARM;
	  svalue = ECOFF_REG_TO_REGNUM (svalue);
	  break;
	case scVar:
	  /* Pass by reference on stack.  */
	  SYMBOL_CLASS (s) = LOC_REF_ARG;
	  break;
	case scVarRegister:
	  /* Pass by reference in register.  */
	  SYMBOL_CLASS (s) = LOC_REGPARM_ADDR;
	  svalue = ECOFF_REG_TO_REGNUM (svalue);
	  break;
	default:
	  /* Pass by value on stack.  */
	  SYMBOL_CLASS (s) = LOC_ARG;
	  break;
	}
      SYMBOL_VALUE (s) = svalue;
      SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name);
      add_symbol (s, top_stack->cur_block);
      break;

    case stLabel:		/* label, goes into current block */
      s = new_symbol (name);
      SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;	/* so that it can be used */
      SYMBOL_CLASS (s) = LOC_LABEL;	/* but not misused */
      SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
      SYMBOL_TYPE (s) = mdebug_type_int;
      add_symbol (s, top_stack->cur_block);
      break;

    case stProc:		/* Procedure, usually goes into global block */
    case stStaticProc:		/* Static procedure, goes into current block */
      s = new_symbol (name);
      SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
      SYMBOL_CLASS (s) = LOC_BLOCK;
      /* Type of the return value */
      if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil)
	t = mdebug_type_int;
      else
	{
	  t = parse_type (cur_fd, ax, sh->index + 1, 0, bigend, name);
	  if (STREQ (name, "malloc") && TYPE_CODE (t) == TYPE_CODE_VOID)
	    {
	      /* I don't know why, but, at least under Alpha GNU/Linux,
	         when linking against a malloc without debugging
	         symbols, its read as a function returning void---this
	         is bad because it means we cannot call functions with
	         string arguments interactively; i.e., "call
	         printf("howdy\n")" would fail with the error message
	         "program has no memory available".  To avoid this, we
	         patch up the type and make it void*
	         instead. (davidm@azstarnet.com)
	       */
	      t = make_pointer_type (t, NULL);
	    }
	}
      b = top_stack->cur_block;
      if (sh->st == stProc)
	{
	  struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st);
	  /* The next test should normally be true, but provides a
	     hook for nested functions (which we don't want to make
	     global). */
	  if (b == BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK))
	    b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
	  /* Irix 5 sometimes has duplicate names for the same
	     function.  We want to add such names up at the global
	     level, not as a nested function.  */
	  else if (sh->value == top_stack->procadr)
	    b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
	}
      add_symbol (s, b);

      /* Make a type for the procedure itself */
      SYMBOL_TYPE (s) = lookup_function_type (t);

      /* Create and enter a new lexical context */
      b = new_block (top_stack->maxsyms);
      SYMBOL_BLOCK_VALUE (s) = b;
      BLOCK_FUNCTION (b) = s;
      BLOCK_START (b) = BLOCK_END (b) = sh->value;
      BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
      add_block (b, top_stack->cur_st);

      /* Not if we only have partial info */
      if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil)
	break;

      push_parse_stack ();
      top_stack->cur_block = b;
      top_stack->blocktype = sh->st;
      top_stack->cur_type = SYMBOL_TYPE (s);
      top_stack->cur_field = -1;
      top_stack->procadr = sh->value;
      top_stack->numargs = 0;
      break;

      /* Beginning of code for structure, union, and enum definitions.
         They all share a common set of local variables, defined here.  */
      {
	enum type_code type_code;
	char *ext_tsym;
	int nfields;
	long max_value;
	struct field *f;

    case stStruct:		/* Start a block defining a struct type */
	type_code = TYPE_CODE_STRUCT;
	goto structured_common;

    case stUnion:		/* Start a block defining a union type */
	type_code = TYPE_CODE_UNION;
	goto structured_common;

    case stEnum:		/* Start a block defining an enum type */
	type_code = TYPE_CODE_ENUM;
	goto structured_common;

    case stBlock:		/* Either a lexical block, or some type */
	if (sh->sc != scInfo && !SC_IS_COMMON (sh->sc))
	  goto case_stBlock_code;	/* Lexical block */

	type_code = TYPE_CODE_UNDEF;	/* We have a type.  */

	/* Common code for handling struct, union, enum, and/or as-yet-
	   unknown-type blocks of info about structured data.  `type_code'
	   has been set to the proper TYPE_CODE, if we know it.  */
      structured_common:
	found_ecoff_debugging_info = 1;
	push_parse_stack ();
	top_stack->blocktype = stBlock;

	/* First count the number of fields and the highest value. */
	nfields = 0;
	max_value = 0;
	for (ext_tsym = ext_sh + external_sym_size;
	     ;
	     ext_tsym += external_sym_size)
	  {
	    SYMR tsym;

	    (*swap_sym_in) (cur_bfd, ext_tsym, &tsym);

	    switch (tsym.st)
	      {
	      case stEnd:
		goto end_of_fields;

	      case stMember:
		if (nfields == 0 && type_code == TYPE_CODE_UNDEF)
		  {
		    /* If the type of the member is Nil (or Void),
		       without qualifiers, assume the tag is an
		       enumeration.
		       Alpha cc -migrate enums are recognized by a zero
		       index and a zero symbol value.
		       DU 4.0 cc enums are recognized by a member type of
		       btEnum without qualifiers and a zero symbol value.  */
		    if (tsym.index == indexNil
			|| (tsym.index == 0 && sh->value == 0))
		      type_code = TYPE_CODE_ENUM;
		    else
		      {
			(*debug_swap->swap_tir_in) (bigend,
						    &ax[tsym.index].a_ti,
						    &tir);
			if ((tir.bt == btNil || tir.bt == btVoid
			     || (tir.bt == btEnum && sh->value == 0))
			    && tir.tq0 == tqNil)
			  type_code = TYPE_CODE_ENUM;
		      }
		  }
		nfields++;
		if (tsym.value > max_value)
		  max_value = tsym.value;
		break;

	      case stBlock:
	      case stUnion:
	      case stEnum:
	      case stStruct:
		{
#if 0
		  /* This is a no-op; is it trying to tell us something
		     we should be checking?  */
		  if (tsym.sc == scVariant);	/*UNIMPLEMENTED */
#endif
		  if (tsym.index != 0)
		    {
		      /* This is something like a struct within a
		         struct.  Skip over the fields of the inner
		         struct.  The -1 is because the for loop will
		         increment ext_tsym.  */
		      ext_tsym = ((char *) debug_info->external_sym
				  + ((cur_fdr->isymBase + tsym.index - 1)
				     * external_sym_size));
		    }
		}
		break;

	      case stTypedef:
		/* mips cc puts out a typedef for struct x if it is not yet
		   defined when it encounters
		   struct y { struct x *xp; };
		   Just ignore it. */
		break;

	      case stIndirect:
		/* Irix5 cc puts out a stIndirect for struct x if it is not
		   yet defined when it encounters
		   struct y { struct x *xp; };
		   Just ignore it. */
		break;

	      default:
		complain (&block_member_complaint, tsym.st);
	      }
	  }
      end_of_fields:;

	/* In an stBlock, there is no way to distinguish structs,
	   unions, and enums at this point.  This is a bug in the
	   original design (that has been fixed with the recent
	   addition of the stStruct, stUnion, and stEnum symbol
	   types.)  The way you can tell is if/when you see a variable
	   or field of that type.  In that case the variable's type
	   (in the AUX table) says if the type is struct, union, or
	   enum, and points back to the stBlock here.  So you can
	   patch the tag kind up later - but only if there actually is
	   a variable or field of that type.

	   So until we know for sure, we will guess at this point.
	   The heuristic is:
	   If the first member has index==indexNil or a void type,
	   assume we have an enumeration.
	   Otherwise, if there is more than one member, and all
	   the members have offset 0, assume we have a union.
	   Otherwise, assume we have a struct.

	   The heuristic could guess wrong in the case of of an
	   enumeration with no members or a union with one (or zero)
	   members, or when all except the last field of a struct have
	   width zero.  These are uncommon and/or illegal situations,
	   and in any case guessing wrong probably doesn't matter
	   much.

	   But if we later do find out we were wrong, we fixup the tag
	   kind.  Members of an enumeration must be handled
	   differently from struct/union fields, and that is harder to
	   patch up, but luckily we shouldn't need to.  (If there are
	   any enumeration members, we can tell for sure it's an enum
	   here.) */

	if (type_code == TYPE_CODE_UNDEF)
	  {
	    if (nfields > 1 && max_value == 0)
	      type_code = TYPE_CODE_UNION;
	    else
	      type_code = TYPE_CODE_STRUCT;
	  }

	/* Create a new type or use the pending type.  */
	pend = is_pending_symbol (cur_fdr, ext_sh);
	if (pend == (struct mdebug_pending *) NULL)
	  {
	    t = new_type (NULL);
	    add_pending (cur_fdr, ext_sh, t);
	  }
	else
	  t = pend->t;

	/* Do not set the tag name if it is a compiler generated tag name
	   (.Fxx or .xxfake or empty) for unnamed struct/union/enums.
	   Alpha cc puts out an sh->iss of zero for those.  */
	if (sh->iss == 0 || name[0] == '.' || name[0] == '\0')
	  TYPE_TAG_NAME (t) = NULL;
	else
	  TYPE_TAG_NAME (t) = obconcat (&current_objfile->symbol_obstack,
					"", "", name);

	TYPE_CODE (t) = type_code;
	TYPE_LENGTH (t) = sh->value;
	TYPE_NFIELDS (t) = nfields;
	TYPE_FIELDS (t) = f = ((struct field *)
			       TYPE_ALLOC (t,
					   nfields * sizeof (struct field)));

	if (type_code == TYPE_CODE_ENUM)
	  {
	    int unsigned_enum = 1;

	    /* This is a non-empty enum. */

	    /* DEC c89 has the number of enumerators in the sh.value field,
	       not the type length, so we have to compensate for that
	       incompatibility quirk.
	       This might do the wrong thing for an enum with one or two
	       enumerators and gcc -gcoff -fshort-enums, but these cases
	       are hopefully rare enough.
	       Alpha cc -migrate has a sh.value field of zero, we adjust
	       that too.  */
	    if (TYPE_LENGTH (t) == TYPE_NFIELDS (t)
		|| TYPE_LENGTH (t) == 0)
	      TYPE_LENGTH (t) = TARGET_INT_BIT / HOST_CHAR_BIT;
	    for (ext_tsym = ext_sh + external_sym_size;
		 ;
		 ext_tsym += external_sym_size)
	      {
		SYMR tsym;
		struct symbol *enum_sym;

		(*swap_sym_in) (cur_bfd, ext_tsym, &tsym);

		if (tsym.st != stMember)
		  break;

		FIELD_BITPOS (*f) = tsym.value;
		FIELD_TYPE (*f) = t;
		FIELD_NAME (*f) = debug_info->ss + cur_fdr->issBase + tsym.iss;
		FIELD_BITSIZE (*f) = 0;

		enum_sym = ((struct symbol *)
			    obstack_alloc (&current_objfile->symbol_obstack,
					   sizeof (struct symbol)));
		memset (enum_sym, 0, sizeof (struct symbol));
		SYMBOL_NAME (enum_sym) =
		  obsavestring (f->name, strlen (f->name),
				&current_objfile->symbol_obstack);
		SYMBOL_CLASS (enum_sym) = LOC_CONST;
		SYMBOL_TYPE (enum_sym) = t;
		SYMBOL_NAMESPACE (enum_sym) = VAR_NAMESPACE;
		SYMBOL_VALUE (enum_sym) = tsym.value;
		if (SYMBOL_VALUE (enum_sym) < 0)
		  unsigned_enum = 0;
		add_symbol (enum_sym, top_stack->cur_block);

		/* Skip the stMembers that we've handled. */
		count++;
		f++;
	      }
	    if (unsigned_enum)
	      TYPE_FLAGS (t) |= TYPE_FLAG_UNSIGNED;
	  }
	/* make this the current type */
	top_stack->cur_type = t;
	top_stack->cur_field = 0;

	/* Do not create a symbol for alpha cc unnamed structs.  */
	if (sh->iss == 0)
	  break;

	/* gcc puts out an empty struct for an opaque struct definitions,
	   do not create a symbol for it either.  */
	if (TYPE_NFIELDS (t) == 0)
	  {
	    TYPE_FLAGS (t) |= TYPE_FLAG_STUB;
	    break;
	  }

	s = new_symbol (name);
	SYMBOL_NAMESPACE (s) = STRUCT_NAMESPACE;
	SYMBOL_CLASS (s) = LOC_TYPEDEF;
	SYMBOL_VALUE (s) = 0;
	SYMBOL_TYPE (s) = t;
	add_symbol (s, top_stack->cur_block);
	break;

	/* End of local variables shared by struct, union, enum, and
	   block (as yet unknown struct/union/enum) processing.  */
      }

    case_stBlock_code:
      found_ecoff_debugging_info = 1;
      /* beginnning of (code) block. Value of symbol
         is the displacement from procedure start */
      push_parse_stack ();

      /* Do not start a new block if this is the outermost block of a
         procedure.  This allows the LOC_BLOCK symbol to point to the
         block with the local variables, so funcname::var works.  */
      if (top_stack->blocktype == stProc
	  || top_stack->blocktype == stStaticProc)
	{
	  top_stack->blocktype = stNil;
	  break;
	}

      top_stack->blocktype = stBlock;
      b = new_block (top_stack->maxsyms);
      BLOCK_START (b) = sh->value + top_stack->procadr;
      BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
      top_stack->cur_block = b;
      add_block (b, top_stack->cur_st);
      break;

    case stEnd:		/* end (of anything) */
      if (sh->sc == scInfo || SC_IS_COMMON (sh->sc))
	{
	  /* Finished with type */
	  top_stack->cur_type = 0;
	}
      else if (sh->sc == scText &&
	       (top_stack->blocktype == stProc ||
		top_stack->blocktype == stStaticProc))
	{
	  /* Finished with procedure */
	  struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st);
	  struct mips_extra_func_info *e;
	  struct block *b;
	  struct type *ftype = top_stack->cur_type;
	  int i;

	  BLOCK_END (top_stack->cur_block) += sh->value;	/* size */

	  /* Make up special symbol to contain procedure specific info */
	  s = new_symbol (MIPS_EFI_SYMBOL_NAME);
	  SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE;
	  SYMBOL_CLASS (s) = LOC_CONST;
	  SYMBOL_TYPE (s) = mdebug_type_void;
	  e = ((struct mips_extra_func_info *)
	       obstack_alloc (&current_objfile->symbol_obstack,
			      sizeof (struct mips_extra_func_info)));
	  memset (e, 0, sizeof (struct mips_extra_func_info));
	  SYMBOL_VALUE (s) = (long) e;
	  e->numargs = top_stack->numargs;
	  e->pdr.framereg = -1;
	  add_symbol (s, top_stack->cur_block);

	  /* Reallocate symbols, saving memory */
	  b = shrink_block (top_stack->cur_block, top_stack->cur_st);

	  /* f77 emits proc-level with address bounds==[0,0],
	     So look for such child blocks, and patch them.  */
	  for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++)
	    {
	      struct block *b_bad = BLOCKVECTOR_BLOCK (bv, i);
	      if (BLOCK_SUPERBLOCK (b_bad) == b
		  && BLOCK_START (b_bad) == top_stack->procadr
		  && BLOCK_END (b_bad) == top_stack->procadr)
		{
		  BLOCK_START (b_bad) = BLOCK_START (b);
		  BLOCK_END (b_bad) = BLOCK_END (b);
		}
	    }

	  if (TYPE_NFIELDS (ftype) <= 0)
	    {
	      /* No parameter type information is recorded with the function's
	         type.  Set that from the type of the parameter symbols. */
	      int nparams = top_stack->numargs;
	      int iparams;
	      struct symbol *sym;

	      if (nparams > 0)
		{
		  TYPE_NFIELDS (ftype) = nparams;
		  TYPE_FIELDS (ftype) = (struct field *)
		    TYPE_ALLOC (ftype, nparams * sizeof (struct field));

		  for (i = iparams = 0; iparams < nparams; i++)
		    {
		      sym = BLOCK_SYM (b, i);
		      switch (SYMBOL_CLASS (sym))
			{
			case LOC_ARG:
			case LOC_REF_ARG:
			case LOC_REGPARM:
			case LOC_REGPARM_ADDR:
			  TYPE_FIELD_TYPE (ftype, iparams) = SYMBOL_TYPE (sym);
			  TYPE_FIELD_ARTIFICIAL (ftype, iparams) = 0;
			  iparams++;
			  break;
			default:
			  break;
			}
		    }
		}
	    }
	}
      else if (sh->sc == scText && top_stack->blocktype == stBlock)
	{
	  /* End of (code) block. The value of the symbol is the
	     displacement from the procedure`s start address of the
	     end of this block. */
	  BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr;
	  shrink_block (top_stack->cur_block, top_stack->cur_st);
	}
      else if (sh->sc == scText && top_stack->blocktype == stNil)
	{
	  /* End of outermost block.  Pop parse stack and ignore.  The
	     following stEnd of stProc will take care of the block.  */
	  ;
	}
      else if (sh->sc == scText && top_stack->blocktype == stFile)
	{
	  /* End of file.  Pop parse stack and ignore.  Higher
	     level code deals with this.  */
	  ;
	}
      else
	complain (&stEnd_complaint, sh->sc);

      pop_parse_stack ();	/* restore previous lexical context */
      break;

    case stMember:		/* member of struct or union */
      f = &TYPE_FIELDS (top_stack->cur_type)[top_stack->cur_field++];
      FIELD_NAME (*f) = name;
      FIELD_BITPOS (*f) = sh->value;
      bitsize = 0;
      FIELD_TYPE (*f) = parse_type (cur_fd, ax, sh->index, &bitsize, bigend, name);
      FIELD_BITSIZE (*f) = bitsize;
      break;

    case stIndirect:		/* forward declaration on Irix5 */
      /* Forward declarations from Irix5 cc are handled by cross_ref,
         skip them.  */
      break;

    case stTypedef:		/* type definition */
      found_ecoff_debugging_info = 1;

      /* Typedefs for forward declarations and opaque structs from alpha cc
         are handled by cross_ref, skip them.  */
      if (sh->iss == 0)
	break;

      /* Parse the type or use the pending type.  */
      pend = is_pending_symbol (cur_fdr, ext_sh);
      if (pend == (struct mdebug_pending *) NULL)
	{
	  t = parse_type (cur_fd, ax, sh->index, (int *) NULL, bigend, name);
	  add_pending (cur_fdr, ext_sh, t);
	}
      else
	t = pend->t;

      /* mips cc puts out a typedef with the name of the struct for forward
         declarations. These should not go into the symbol table and
         TYPE_NAME should not be set for them.
         They can't be distinguished from an intentional typedef to
         the same name however:
         x.h:
         struct x { int ix; int jx; };
         struct xx;
         x.c:
         typedef struct x x;
         struct xx {int ixx; int jxx; };
         generates a cross referencing stTypedef for x and xx.
         The user visible effect of this is that the type of a pointer
         to struct foo sometimes is given as `foo *' instead of `struct foo *'.
         The problem is fixed with alpha cc and Irix5 cc.  */

      /* However if the typedef cross references to an opaque aggregate, it
         is safe to omit it from the symbol table.  */

      if (has_opaque_xref (cur_fdr, sh))
	break;
      s = new_symbol (name);
      SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
      SYMBOL_CLASS (s) = LOC_TYPEDEF;
      SYMBOL_BLOCK_VALUE (s) = top_stack->cur_block;
      SYMBOL_TYPE (s) = t;
      add_symbol (s, top_stack->cur_block);

      /* Incomplete definitions of structs should not get a name.  */
      if (TYPE_NAME (SYMBOL_TYPE (s)) == NULL
	  && (TYPE_NFIELDS (SYMBOL_TYPE (s)) != 0
	      || (TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_STRUCT
		  && TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_UNION)))
	{
	  if (TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_PTR
	      || TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_FUNC)
	    {
	      /* If we are giving a name to a type such as "pointer to
	         foo" or "function returning foo", we better not set
	         the TYPE_NAME.  If the program contains "typedef char
	         *caddr_t;", we don't want all variables of type char
	         * to print as caddr_t.  This is not just a
	         consequence of GDB's type management; CC and GCC (at
	         least through version 2.4) both output variables of
	         either type char * or caddr_t with the type
	         refering to the stTypedef symbol for caddr_t.  If a future
	         compiler cleans this up it GDB is not ready for it
	         yet, but if it becomes ready we somehow need to
	         disable this check (without breaking the PCC/GCC2.4
	         case).

	         Sigh.

	         Fortunately, this check seems not to be necessary
	         for anything except pointers or functions.  */
	    }
	  else
	    TYPE_NAME (SYMBOL_TYPE (s)) = SYMBOL_NAME (s);
	}
      break;

    case stFile:		/* file name */
      push_parse_stack ();
      top_stack->blocktype = sh->st;
      break;

      /* I`ve never seen these for C */
    case stRegReloc:
      break;			/* register relocation */
    case stForward:
      break;			/* forwarding address */
    case stConstant:
      break;			/* constant */
    default:
      complain (&unknown_mdebug_symtype_complaint, sh->st);
      break;
    }

  return count;
}

/* Parse the type information provided in the raw AX entries for
   the symbol SH. Return the bitfield size in BS, in case.
   We must byte-swap the AX entries before we use them; BIGEND says whether
   they are big-endian or little-endian (from fh->fBigendian).  */

static struct type *
parse_type (int fd, union aux_ext *ax, unsigned int aux_index, int *bs,
	    int bigend, char *sym_name)
{
  /* Null entries in this map are treated specially */
  static struct type **map_bt[] =
  {
    &mdebug_type_void,		/* btNil */
    &mdebug_type_adr_32,	/* btAdr */
    &mdebug_type_char,		/* btChar */
    &mdebug_type_unsigned_char,	/* btUChar */
    &mdebug_type_short,		/* btShort */
    &mdebug_type_unsigned_short,	/* btUShort */
    &mdebug_type_int_32,	/* btInt */
    &mdebug_type_unsigned_int_32,	/* btUInt */
    &mdebug_type_long_32,	/* btLong */
    &mdebug_type_unsigned_long_32,	/* btULong */
    &mdebug_type_float,		/* btFloat */
    &mdebug_type_double,	/* btDouble */
    0,				/* btStruct */
    0,				/* btUnion */
    0,				/* btEnum */
    0,				/* btTypedef */
    0,				/* btRange */
    0,				/* btSet */
    &mdebug_type_complex,	/* btComplex */
    &mdebug_type_double_complex,	/* btDComplex */
    0,				/* btIndirect */
    &mdebug_type_fixed_dec,	/* btFixedDec */
    &mdebug_type_float_dec,	/* btFloatDec */
    &mdebug_type_string,	/* btString */
    0,				/* btBit */
    0,				/* btPicture */
    &mdebug_type_void,		/* btVoid */
    0,				/* DEC C++:  Pointer to member */
    0,				/* DEC C++:  Virtual function table */
    0,				/* DEC C++:  Class (Record) */
    &mdebug_type_long_64,	/* btLong64  */
    &mdebug_type_unsigned_long_64,	/* btULong64 */
    &mdebug_type_long_long_64,	/* btLongLong64  */
    &mdebug_type_unsigned_long_long_64,		/* btULongLong64 */
    &mdebug_type_adr_64,	/* btAdr64 */
    &mdebug_type_int_64,	/* btInt64  */
    &mdebug_type_unsigned_int_64,	/* btUInt64 */
  };

  TIR t[1];
  struct type *tp = 0;
  enum type_code type_code = TYPE_CODE_UNDEF;

  /* Handle undefined types, they have indexNil. */
  if (aux_index == indexNil)
    return mdebug_type_int;

  /* Handle corrupt aux indices.  */
  if (aux_index >= (debug_info->fdr + fd)->caux)
    {
      complain (&index_complaint, sym_name);
      return mdebug_type_int;
    }
  ax += aux_index;

  /* Use aux as a type information record, map its basic type.  */
  (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t);
  if (t->bt >= (sizeof (map_bt) / sizeof (*map_bt)))
    {
      complain (&basic_type_complaint, t->bt, sym_name);
      return mdebug_type_int;
    }
  if (map_bt[t->bt])
    {
      tp = *map_bt[t->bt];
    }
  else
    {
      tp = NULL;
      /* Cannot use builtin types -- build our own */
      switch (t->bt)
	{
	case btStruct:
	  type_code = TYPE_CODE_STRUCT;
	  break;
	case btUnion:
	  type_code = TYPE_CODE_UNION;
	  break;
	case btEnum:
	  type_code = TYPE_CODE_ENUM;
	  break;
	case btRange:
	  type_code = TYPE_CODE_RANGE;
	  break;
	case btSet:
	  type_code = TYPE_CODE_SET;
	  break;
	case btIndirect:
	  /* alpha cc -migrate uses this for typedefs. The true type will
	     be obtained by crossreferencing below.  */
	  type_code = TYPE_CODE_ERROR;
	  break;
	case btTypedef:
	  /* alpha cc uses this for typedefs. The true type will be
	     obtained by crossreferencing below.  */
	  type_code = TYPE_CODE_ERROR;
	  break;
	default:
	  complain (&basic_type_complaint, t->bt, sym_name);
	  return mdebug_type_int;
	}
    }

  /* Move on to next aux */
  ax++;

  if (t->fBitfield)
    {
      int width = AUX_GET_WIDTH (bigend, ax);

      /* Inhibit core dumps with some cfront generated objects that
         corrupt the TIR.  */
      if (bs == (int *) NULL)
	{
	  /* Alpha cc -migrate encodes char and unsigned char types
	     as short and unsigned short types with a field width of 8.
	     Enum types also have a field width which we ignore for now.  */
	  if (t->bt == btShort && width == 8)
	    tp = mdebug_type_char;
	  else if (t->bt == btUShort && width == 8)
	    tp = mdebug_type_unsigned_char;
	  else if (t->bt == btEnum)
	    ;
	  else
	    complain (&bad_fbitfield_complaint, sym_name);
	}
      else
	*bs = width;
      ax++;
    }

  /* A btIndirect entry cross references to an aux entry containing
     the type.  */
  if (t->bt == btIndirect)
    {
      RNDXR rn[1];
      int rf;
      FDR *xref_fh;
      int xref_fd;

      (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn);
      ax++;
      if (rn->rfd == 0xfff)
	{
	  rf = AUX_GET_ISYM (bigend, ax);
	  ax++;
	}
      else
	rf = rn->rfd;

      if (rf == -1)
	{
	  complain (&bad_indirect_xref_complaint, sym_name);
	  return mdebug_type_int;
	}
      xref_fh = get_rfd (fd, rf);
      xref_fd = xref_fh - debug_info->fdr;
      tp = parse_type (xref_fd, debug_info->external_aux + xref_fh->iauxBase,
		    rn->index, (int *) NULL, xref_fh->fBigendian, sym_name);
    }

  /* All these types really point to some (common) MIPS type
     definition, and only the type-qualifiers fully identify
     them.  We'll make the same effort at sharing. */
  if (t->bt == btStruct ||
      t->bt == btUnion ||
      t->bt == btEnum ||

  /* btSet (I think) implies that the name is a tag name, not a typedef
     name.  This apparently is a MIPS extension for C sets.  */
      t->bt == btSet)
    {
      char *name;

      /* Try to cross reference this type, build new type on failure.  */
      ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name);
      if (tp == (struct type *) NULL)
	tp = init_type (type_code, 0, 0, (char *) NULL, current_objfile);

      /* DEC c89 produces cross references to qualified aggregate types,
         dereference them.  */
      while (TYPE_CODE (tp) == TYPE_CODE_PTR
	     || TYPE_CODE (tp) == TYPE_CODE_ARRAY)
	tp = TYPE_TARGET_TYPE (tp);

      /* Make sure that TYPE_CODE(tp) has an expected type code.
         Any type may be returned from cross_ref if file indirect entries
         are corrupted.  */
      if (TYPE_CODE (tp) != TYPE_CODE_STRUCT
	  && TYPE_CODE (tp) != TYPE_CODE_UNION
	  && TYPE_CODE (tp) != TYPE_CODE_ENUM)
	{
	  complain (&unexpected_type_code_complaint, sym_name);
	}
      else
	{

	  /* Usually, TYPE_CODE(tp) is already type_code.  The main
	     exception is if we guessed wrong re struct/union/enum.
	     But for struct vs. union a wrong guess is harmless, so
	     don't complain().  */
	  if ((TYPE_CODE (tp) == TYPE_CODE_ENUM
	       && type_code != TYPE_CODE_ENUM)
	      || (TYPE_CODE (tp) != TYPE_CODE_ENUM
		  && type_code == TYPE_CODE_ENUM))
	    {
	      complain (&bad_tag_guess_complaint, sym_name);
	    }

	  if (TYPE_CODE (tp) != type_code)
	    {
	      TYPE_CODE (tp) = type_code;
	    }

	  /* Do not set the tag name if it is a compiler generated tag name
	     (.Fxx or .xxfake or empty) for unnamed struct/union/enums.  */
	  if (name[0] == '.' || name[0] == '\0')
	    TYPE_TAG_NAME (tp) = NULL;
	  else if (TYPE_TAG_NAME (tp) == NULL
		   || !STREQ (TYPE_TAG_NAME (tp), name))
	    TYPE_TAG_NAME (tp) = obsavestring (name, strlen (name),
					    &current_objfile->type_obstack);
	}
    }

  /* All these types really point to some (common) MIPS type
     definition, and only the type-qualifiers fully identify
     them.  We'll make the same effort at sharing.
     FIXME: We are not doing any guessing on range types.  */
  if (t->bt == btRange)
    {
      char *name;

      /* Try to cross reference this type, build new type on failure.  */
      ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name);
      if (tp == (struct type *) NULL)
	tp = init_type (type_code, 0, 0, (char *) NULL, current_objfile);

      /* Make sure that TYPE_CODE(tp) has an expected type code.
         Any type may be returned from cross_ref if file indirect entries
         are corrupted.  */
      if (TYPE_CODE (tp) != TYPE_CODE_RANGE)
	{
	  complain (&unexpected_type_code_complaint, sym_name);
	}
      else
	{
	  /* Usually, TYPE_CODE(tp) is already type_code.  The main
	     exception is if we guessed wrong re struct/union/enum. */
	  if (TYPE_CODE (tp) != type_code)
	    {
	      complain (&bad_tag_guess_complaint, sym_name);
	      TYPE_CODE (tp) = type_code;
	    }
	  if (TYPE_NAME (tp) == NULL || !STREQ (TYPE_NAME (tp), name))
	    TYPE_NAME (tp) = obsavestring (name, strlen (name),
					   &current_objfile->type_obstack);
	}
    }
  if (t->bt == btTypedef)
    {
      char *name;

      /* Try to cross reference this type, it should succeed.  */
      ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name);
      if (tp == (struct type *) NULL)
	{
	  complain (&unable_to_cross_ref_complaint, sym_name);
	  tp = mdebug_type_int;
	}
    }

  /* Deal with range types */
  if (t->bt == btRange)
    {
      TYPE_NFIELDS (tp) = 2;
      TYPE_FIELDS (tp) = ((struct field *)
			  TYPE_ALLOC (tp, 2 * sizeof (struct field)));
      TYPE_FIELD_NAME (tp, 0) = obsavestring ("Low", strlen ("Low"),
					    &current_objfile->type_obstack);
      TYPE_FIELD_BITPOS (tp, 0) = AUX_GET_DNLOW (bigend, ax);
      ax++;
      TYPE_FIELD_NAME (tp, 1) = obsavestring ("High", strlen ("High"),
					    &current_objfile->type_obstack);
      TYPE_FIELD_BITPOS (tp, 1) = AUX_GET_DNHIGH (bigend, ax);
      ax++;
    }

  /* Parse all the type qualifiers now. If there are more
     than 6 the game will continue in the next aux */

  while (1)
    {
#define PARSE_TQ(tq) \
      if (t->tq != tqNil) \
	ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \
      else \
	break;

      PARSE_TQ (tq0);
      PARSE_TQ (tq1);
      PARSE_TQ (tq2);
      PARSE_TQ (tq3);
      PARSE_TQ (tq4);
      PARSE_TQ (tq5);
#undef	PARSE_TQ

      /* mips cc 2.x and gcc never put out continued aux entries.  */
      if (!t->continued)
	break;

      (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t);
      ax++;
    }

  /* Complain for illegal continuations due to corrupt aux entries.  */
  if (t->continued)
    complain (&bad_continued_complaint, sym_name);

  return tp;
}

/* Make up a complex type from a basic one.  Type is passed by
   reference in TPP and side-effected as necessary. The type
   qualifier TQ says how to handle the aux symbols at AX for
   the symbol SX we are currently analyzing.  BIGEND says whether
   aux symbols are big-endian or little-endian.
   Returns the number of aux symbols we parsed. */

static int
upgrade_type (int fd, struct type **tpp, int tq, union aux_ext *ax, int bigend,
	      char *sym_name)
{
  int off;
  struct type *t;

  /* Used in array processing */
  int rf, id;
  FDR *fh;
  struct type *range;
  struct type *indx;
  int lower, upper;
  RNDXR rndx;

  switch (tq)
    {
    case tqPtr:
      t = lookup_pointer_type (*tpp);
      *tpp = t;
      return 0;

    case tqProc:
      t = lookup_function_type (*tpp);
      *tpp = t;
      return 0;

    case tqArray:
      off = 0;

      /* Determine and record the domain type (type of index) */
      (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, &rndx);
      id = rndx.index;
      rf = rndx.rfd;
      if (rf == 0xfff)
	{
	  ax++;
	  rf = AUX_GET_ISYM (bigend, ax);
	  off++;
	}
      fh = get_rfd (fd, rf);

      indx = parse_type (fh - debug_info->fdr,
			 debug_info->external_aux + fh->iauxBase,
			 id, (int *) NULL, bigend, sym_name);

      /* The bounds type should be an integer type, but might be anything
         else due to corrupt aux entries.  */
      if (TYPE_CODE (indx) != TYPE_CODE_INT)
	{
	  complain (&array_index_type_complaint, sym_name);
	  indx = mdebug_type_int;
	}

      /* Get the bounds, and create the array type.  */
      ax++;
      lower = AUX_GET_DNLOW (bigend, ax);
      ax++;
      upper = AUX_GET_DNHIGH (bigend, ax);
      ax++;
      rf = AUX_GET_WIDTH (bigend, ax);	/* bit size of array element */

      range = create_range_type ((struct type *) NULL, indx,
				 lower, upper);

      t = create_array_type ((struct type *) NULL, *tpp, range);

      /* We used to fill in the supplied array element bitsize
         here if the TYPE_LENGTH of the target type was zero.
         This happens for a `pointer to an array of anonymous structs',
         but in this case the array element bitsize is also zero,
         so nothing is gained.
         And we used to check the TYPE_LENGTH of the target type against
         the supplied array element bitsize.
         gcc causes a mismatch for `pointer to array of object',
         since the sdb directives it uses do not have a way of
         specifying the bitsize, but it does no harm (the
         TYPE_LENGTH should be correct) and we should be able to
         ignore the erroneous bitsize from the auxiliary entry safely.
         dbx seems to ignore it too.  */

      /* TYPE_FLAG_TARGET_STUB now takes care of the zero TYPE_LENGTH
         problem.  */
      if (TYPE_LENGTH (*tpp) == 0)
	{
	  TYPE_FLAGS (t) |= TYPE_FLAG_TARGET_STUB;
	}

      *tpp = t;
      return 4 + off;

    case tqVol:
      /* Volatile -- currently ignored */
      return 0;

    case tqConst:
      /* Const -- currently ignored */
      return 0;

    default:
      complain (&unknown_type_qual_complaint, tq);
      return 0;
    }
}


/* Parse a procedure descriptor record PR.  Note that the procedure is
   parsed _after_ the local symbols, now we just insert the extra
   information we need into a MIPS_EFI_SYMBOL_NAME symbol that has
   already been placed in the procedure's main block.  Note also that
   images that have been partially stripped (ld -x) have been deprived
   of local symbols, and we have to cope with them here.  FIRST_OFF is
   the offset of the first procedure for this FDR; we adjust the
   address by this amount, but I don't know why.  SEARCH_SYMTAB is the symtab
   to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol
   in question, or NULL to use top_stack->cur_block.  */

static void parse_procedure (PDR *, struct symtab *, struct partial_symtab *);

static void
parse_procedure (PDR *pr, struct symtab *search_symtab,
		 struct partial_symtab *pst)
{
  struct symbol *s, *i;
  struct block *b;
  struct mips_extra_func_info *e;
  char *sh_name;

  /* Simple rule to find files linked "-x" */
  if (cur_fdr->rss == -1)
    {
      if (pr->isym == -1)
	{
	  /* Static procedure at address pr->adr.  Sigh. */
	  /* FIXME-32x64.  assuming pr->adr fits in long.  */
	  complain (&pdr_static_symbol_complaint, (unsigned long) pr->adr);
	  return;
	}
      else
	{
	  /* external */
	  EXTR she;

	  (*debug_swap->swap_ext_in) (cur_bfd,
				      ((char *) debug_info->external_ext
				       + (pr->isym
					  * debug_swap->external_ext_size)),
				      &she);
	  sh_name = debug_info->ssext + she.asym.iss;
	}
    }
  else
    {
      /* Full symbols */
      SYMR sh;

      (*debug_swap->swap_sym_in) (cur_bfd,
				  ((char *) debug_info->external_sym
				   + ((cur_fdr->isymBase + pr->isym)
				      * debug_swap->external_sym_size)),
				  &sh);
      sh_name = debug_info->ss + cur_fdr->issBase + sh.iss;
    }

  if (search_symtab != NULL)
    {
#if 0
      /* This loses both in the case mentioned (want a static, find a global),
         but also if we are looking up a non-mangled name which happens to
         match the name of a mangled function.  */
      /* We have to save the cur_fdr across the call to lookup_symbol.
         If the pdr is for a static function and if a global function with
         the same name exists, lookup_symbol will eventually read in the symtab
         for the global function and clobber cur_fdr.  */
      FDR *save_cur_fdr = cur_fdr;
      s = lookup_symbol (sh_name, NULL, VAR_NAMESPACE, 0, NULL);
      cur_fdr = save_cur_fdr;
#else
      s = mylookup_symbol
	(sh_name,
	 BLOCKVECTOR_BLOCK (BLOCKVECTOR (search_symtab), STATIC_BLOCK),
	 VAR_NAMESPACE,
	 LOC_BLOCK);
#endif
    }
  else
    s = mylookup_symbol (sh_name, top_stack->cur_block,
			 VAR_NAMESPACE, LOC_BLOCK);

  if (s != 0)
    {
      b = SYMBOL_BLOCK_VALUE (s);
    }
  else
    {
      complain (&pdr_for_nonsymbol_complaint, sh_name);
#if 1
      return;
#else
/* FIXME -- delete.  We can't do symbol allocation now; it's all done.  */
      s = new_symbol (sh_name);
      SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
      SYMBOL_CLASS (s) = LOC_BLOCK;
      /* Donno its type, hope int is ok */
      SYMBOL_TYPE (s) = lookup_function_type (mdebug_type_int);
      add_symbol (s, top_stack->cur_block);
      /* Wont have symbols for this one */
      b = new_block (2);
      SYMBOL_BLOCK_VALUE (s) = b;
      BLOCK_FUNCTION (b) = s;
      BLOCK_START (b) = pr->adr;
      /* BOUND used to be the end of procedure's text, but the
         argument is no longer passed in.  */
      BLOCK_END (b) = bound;
      BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
      add_block (b, top_stack->cur_st);
#endif
    }

  i = mylookup_symbol (MIPS_EFI_SYMBOL_NAME, b, LABEL_NAMESPACE, LOC_CONST);

  if (i)
    {
      e = (struct mips_extra_func_info *) SYMBOL_VALUE (i);
      e->pdr = *pr;
      e->pdr.isym = (long) s;

      /* GDB expects the absolute function start address for the
         procedure descriptor in e->pdr.adr.
         As the address in the procedure descriptor is usually relative,
         we would have to relocate e->pdr.adr with cur_fdr->adr and
         ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile)).
         Unfortunately cur_fdr->adr and e->pdr.adr are both absolute
         in shared libraries on some systems, and on other systems
         e->pdr.adr is sometimes offset by a bogus value.
         To work around these problems, we replace e->pdr.adr with
         the start address of the function.  */
      e->pdr.adr = BLOCK_START (b);

      /* Correct incorrect setjmp procedure descriptor from the library
         to make backtrace through setjmp work.  */
      if (e->pdr.pcreg == 0 && STREQ (sh_name, "setjmp"))
	{
	  complain (&bad_setjmp_pdr_complaint, 0);
	  e->pdr.pcreg = RA_REGNUM;
	  e->pdr.regmask = 0x80000000;
	  e->pdr.regoffset = -4;
	}
    }

  /* It would be reasonable that functions that have been compiled
     without debugging info have a btNil type for their return value,
     and functions that are void and are compiled with debugging info
     have btVoid.
     gcc and DEC f77 put out btNil types for both cases, so btNil is mapped
     to TYPE_CODE_VOID in parse_type to get the `compiled with debugging info'
     case right.
     The glevel field in cur_fdr could be used to determine the presence
     of debugging info, but GCC doesn't always pass the -g switch settings
     to the assembler and GAS doesn't set the glevel field from the -g switch
     settings.
     To work around these problems, the return value type of a TYPE_CODE_VOID
     function is adjusted accordingly if no debugging info was found in the
     compilation unit.  */

  if (processing_gcc_compilation == 0
      && found_ecoff_debugging_info == 0
      && TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (s))) == TYPE_CODE_VOID)
    SYMBOL_TYPE (s) = nodebug_func_symbol_type;
}

/* Relocate the extra function info pointed to by the symbol table.  */

void
ecoff_relocate_efi (struct symbol *sym, CORE_ADDR delta)
{
  struct mips_extra_func_info *e;

  e = (struct mips_extra_func_info *) SYMBOL_VALUE (sym);

  e->pdr.adr += delta;
}

/* Parse the external symbol ES. Just call parse_symbol() after
   making sure we know where the aux are for it.
   BIGEND says whether aux entries are big-endian or little-endian.

   This routine clobbers top_stack->cur_block and ->cur_st. */

static void parse_external (EXTR *, int, struct section_offsets *,
			    struct objfile *);

static void
parse_external (EXTR *es, int bigend, struct section_offsets *section_offsets,
		struct objfile *objfile)
{
  union aux_ext *ax;

  if (es->ifd != ifdNil)
    {
      cur_fd = es->ifd;
      cur_fdr = debug_info->fdr + cur_fd;
      ax = debug_info->external_aux + cur_fdr->iauxBase;
    }
  else
    {
      cur_fdr = debug_info->fdr;
      ax = 0;
    }

  /* Reading .o files */
  if (SC_IS_UNDEF (es->asym.sc) || es->asym.sc == scNil)
    {
      char *what;
      switch (es->asym.st)
	{
	case stNil:
	  /* These are generated for static symbols in .o files,
	     ignore them.  */
	  return;
	case stStaticProc:
	case stProc:
	  what = "procedure";
	  n_undef_procs++;
	  break;
	case stGlobal:
	  what = "variable";
	  n_undef_vars++;
	  break;
	case stLabel:
	  what = "label";
	  n_undef_labels++;
	  break;
	default:
	  what = "symbol";
	  break;
	}
      n_undef_symbols++;
      /* FIXME:  Turn this into a complaint? */
      if (info_verbose)
	printf_filtered ("Warning: %s `%s' is undefined (in %s)\n",
			 what, debug_info->ssext + es->asym.iss,
			 fdr_name (cur_fdr));
      return;
    }

  switch (es->asym.st)
    {
    case stProc:
    case stStaticProc:
      /* There is no need to parse the external procedure symbols.
         If they are from objects compiled without -g, their index will
         be indexNil, and the symbol definition from the minimal symbol
         is preferrable (yielding a function returning int instead of int).
         If the index points to a local procedure symbol, the local
         symbol already provides the correct type.
         Note that the index of the external procedure symbol points
         to the local procedure symbol in the local symbol table, and
         _not_ to the auxiliary symbol info.  */
      break;
    case stGlobal:
    case stLabel:
      /* Global common symbols are resolved by the runtime loader,
         ignore them.  */
      if (SC_IS_COMMON (es->asym.sc))
	break;

      /* Note that the case of a symbol with indexNil must be handled
         anyways by parse_symbol().  */
      parse_symbol (&es->asym, ax, (char *) NULL, bigend, section_offsets, objfile);
      break;
    default:
      break;
    }
}

/* Parse the line number info for file descriptor FH into
   GDB's linetable LT.  MIPS' encoding requires a little bit
   of magic to get things out.  Note also that MIPS' line
   numbers can go back and forth, apparently we can live
   with that and do not need to reorder our linetables */

static void parse_lines (FDR *, PDR *, struct linetable *, int,
			 struct partial_symtab *, CORE_ADDR);

static void
parse_lines (FDR *fh, PDR *pr, struct linetable *lt, int maxlines,
	     struct partial_symtab *pst, CORE_ADDR lowest_pdr_addr)
{
  unsigned char *base;
  int j, k;
  int delta, count, lineno = 0;

  if (fh->cbLine == 0)
    return;

  /* Scan by procedure descriptors */
  k = 0;
  for (j = 0; j < fh->cpd; j++, pr++)
    {
      CORE_ADDR l;
      CORE_ADDR adr;
      unsigned char *halt;

      /* No code for this one */
      if (pr->iline == ilineNil ||
	  pr->lnLow == -1 || pr->lnHigh == -1)
	continue;

      /* Determine start and end address of compressed line bytes for
         this procedure.  */
      base = debug_info->line + fh->cbLineOffset;
      if (j != (fh->cpd - 1))
	halt = base + pr[1].cbLineOffset;
      else
	halt = base + fh->cbLine;
      base += pr->cbLineOffset;

      adr = TEXTLOW (pst) + pr->adr - lowest_pdr_addr;

      l = adr >> 2;		/* in words */
      for (lineno = pr->lnLow; base < halt;)
	{
	  count = *base & 0x0f;
	  delta = *base++ >> 4;
	  if (delta >= 8)
	    delta -= 16;
	  if (delta == -8)
	    {
	      delta = (base[0] << 8) | base[1];
	      if (delta >= 0x8000)
		delta -= 0x10000;
	      base += 2;
	    }
	  lineno += delta;	/* first delta is 0 */

	  /* Complain if the line table overflows. Could happen
	     with corrupt binaries.  */
	  if (lt->nitems >= maxlines)
	    {
	      complain (&bad_linetable_guess_complaint, fdr_name (fh));
	      break;
	    }
	  k = add_line (lt, lineno, l, k);
	  l += count + 1;
	}
    }
}

/* Master parsing procedure for first-pass reading of file symbols
   into a partial_symtab.  */

static void
parse_partial_symbols (struct objfile *objfile)
{
  const bfd_size_type external_sym_size = debug_swap->external_sym_size;
  const bfd_size_type external_rfd_size = debug_swap->external_rfd_size;
  const bfd_size_type external_ext_size = debug_swap->external_ext_size;
  void (*const swap_ext_in) (bfd *, void *, EXTR *) = debug_swap->swap_ext_in;
  void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in;
  void (*const swap_rfd_in) (bfd *, void *, RFDT *) = debug_swap->swap_rfd_in;
  int f_idx, s_idx;
  HDRR *hdr = &debug_info->symbolic_header;
  /* Running pointers */
  FDR *fh;
  char *ext_out;
  char *ext_out_end;
  EXTR *ext_block;
  register EXTR *ext_in;
  EXTR *ext_in_end;
  SYMR sh;
  struct partial_symtab *pst;
  int textlow_not_set = 1;
  int past_first_source_file = 0;

  /* List of current psymtab's include files */
  char **psymtab_include_list;
  int includes_allocated;
  int includes_used;
  EXTR *extern_tab;
  struct pst_map *fdr_to_pst;
  /* Index within current psymtab dependency list */
  struct partial_symtab **dependency_list;
  int dependencies_used, dependencies_allocated;
  struct cleanup *old_chain;
  char *name;
  enum language prev_language;
  asection *text_sect;
  int relocatable = 0;

  /* Irix 5.2 shared libraries have a fh->adr field of zero, but
     the shared libraries are prelinked at a high memory address.
     We have to adjust the start address of the object file for this case,
     by setting it to the start address of the first procedure in the file.
     But we should do no adjustments if we are debugging a .o file, where
     the text section (and fh->adr) really starts at zero.  */
  text_sect = bfd_get_section_by_name (cur_bfd, ".text");
  if (text_sect != NULL
      && (bfd_get_section_flags (cur_bfd, text_sect) & SEC_RELOC))
    relocatable = 1;

  extern_tab = (EXTR *) obstack_alloc (&objfile->psymbol_obstack,
				       sizeof (EXTR) * hdr->iextMax);

  includes_allocated = 30;
  includes_used = 0;
  psymtab_include_list = (char **) alloca (includes_allocated *
					   sizeof (char *));
  next_symbol_text_func = mdebug_next_symbol_text;

  dependencies_allocated = 30;
  dependencies_used = 0;
  dependency_list =
    (struct partial_symtab **) alloca (dependencies_allocated *
				       sizeof (struct partial_symtab *));

  last_source_file = NULL;

  /*
   * Big plan:
   *
   * Only parse the Local and External symbols, and the Relative FDR.
   * Fixup enough of the loader symtab to be able to use it.
   * Allocate space only for the file's portions we need to
   * look at. (XXX)
   */

  max_gdbinfo = 0;
  max_glevel = MIN_GLEVEL;

  /* Allocate the map FDR -> PST.
     Minor hack: -O3 images might claim some global data belongs
     to FDR -1. We`ll go along with that */
  fdr_to_pst = (struct pst_map *) xzalloc ((hdr->ifdMax + 1) * sizeof *fdr_to_pst);
  old_chain = make_cleanup (xfree, fdr_to_pst);
  fdr_to_pst++;
  {
    struct partial_symtab *pst = new_psymtab ("", objfile);
    fdr_to_pst[-1].pst = pst;
    FDR_IDX (pst) = -1;
  }

  /* Allocate the global pending list.  */
  pending_list =
    ((struct mdebug_pending **)
     obstack_alloc (&objfile->psymbol_obstack,
		    hdr->ifdMax * sizeof (struct mdebug_pending *)));
  memset (pending_list, 0,
	  hdr->ifdMax * sizeof (struct mdebug_pending *));

  /* Pass 0 over external syms: swap them in.  */
  ext_block = (EXTR *) xmalloc (hdr->iextMax * sizeof (EXTR));
  make_cleanup (xfree, ext_block);

  ext_out = (char *) debug_info->external_ext;
  ext_out_end = ext_out + hdr->iextMax * external_ext_size;
  ext_in = ext_block;
  for (; ext_out < ext_out_end; ext_out += external_ext_size, ext_in++)
    (*swap_ext_in) (cur_bfd, ext_out, ext_in);

  /* Pass 1 over external syms: Presize and partition the list */
  ext_in = ext_block;
  ext_in_end = ext_in + hdr->iextMax;
  for (; ext_in < ext_in_end; ext_in++)
    {
      /* See calls to complain below.  */
      if (ext_in->ifd >= -1
	  && ext_in->ifd < hdr->ifdMax
	  && ext_in->asym.iss >= 0
	  && ext_in->asym.iss < hdr->issExtMax)
	fdr_to_pst[ext_in->ifd].n_globals++;
    }

  /* Pass 1.5 over files:  partition out global symbol space */
  s_idx = 0;
  for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++)
    {
      fdr_to_pst[f_idx].globals_offset = s_idx;
      s_idx += fdr_to_pst[f_idx].n_globals;
      fdr_to_pst[f_idx].n_globals = 0;
    }

  /* ECOFF in ELF:

     For ECOFF in ELF, we skip the creation of the minimal symbols.
     The ECOFF symbols should be a subset of the Elf symbols, and the 
     section information of the elf symbols will be more accurate.
     FIXME!  What about Irix 5's native linker?

     By default, Elf sections which don't exist in ECOFF 
     get put in ECOFF's absolute section by the gnu linker.
     Since absolute sections don't get relocated, we 
     end up calculating an address different from that of 
     the symbol's minimal symbol (created earlier from the
     Elf symtab).  

     To fix this, either :
     1) don't create the duplicate symbol
     (assumes ECOFF symtab is a subset of the ELF symtab;
     assumes no side-effects result from ignoring ECOFF symbol)
     2) create it, only if lookup for existing symbol in ELF's minimal 
     symbols fails
     (inefficient; 
     assumes no side-effects result from ignoring ECOFF symbol)
     3) create it, but lookup ELF's minimal symbol and use it's section
     during relocation, then modify "uniqify" phase to merge and 
     eliminate the duplicate symbol
     (highly inefficient)

     I've implemented #1 here...
     Skip the creation of the minimal symbols based on the ECOFF 
     symbol table. */

  /* Pass 2 over external syms: fill in external symbols */
  ext_in = ext_block;
  ext_in_end = ext_in + hdr->iextMax;
  for (; ext_in < ext_in_end; ext_in++)
    {
      enum minimal_symbol_type ms_type = mst_text;
      CORE_ADDR svalue = ext_in->asym.value;

      /* The Irix 5 native tools seem to sometimes generate bogus
         external symbols.  */
      if (ext_in->ifd < -1 || ext_in->ifd >= hdr->ifdMax)
	{
	  complain (&bad_ext_ifd_complaint, ext_in->ifd, hdr->ifdMax);
	  continue;
	}
      if (ext_in->asym.iss < 0 || ext_in->asym.iss >= hdr->issExtMax)
	{
	  complain (&bad_ext_iss_complaint, ext_in->asym.iss,
		    hdr->issExtMax);
	  continue;
	}

      extern_tab[fdr_to_pst[ext_in->ifd].globals_offset
		 + fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in;


      if (SC_IS_UNDEF (ext_in->asym.sc) || ext_in->asym.sc == scNil)
	continue;


      /* Pass 3 over files, over local syms: fill in static symbols */
      name = debug_info->ssext + ext_in->asym.iss;

      /* Process ECOFF Symbol Types and Storage Classes */
      switch (ext_in->asym.st)
	{
	case stProc:
	  /* Beginnning of Procedure */
	  svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
	  break;
	case stStaticProc:
	  /* Load time only static procs */
	  ms_type = mst_file_text;
	  svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
	  break;
	case stGlobal:
	  /* External symbol */
	  if (SC_IS_COMMON (ext_in->asym.sc))
	    {
	      /* The value of a common symbol is its size, not its address.
	         Ignore it.  */
	      continue;
	    }
	  else if (SC_IS_DATA (ext_in->asym.sc))
	    {
	      ms_type = mst_data;
	      svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
	    }
	  else if (SC_IS_BSS (ext_in->asym.sc))
	    {
	      ms_type = mst_bss;
	      svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
	    }
          else if (SC_IS_SBSS (ext_in->asym.sc))
            {
              ms_type = mst_bss;
              svalue += ANOFFSET (objfile->section_offsets, 
                                  get_section_index (objfile, ".sbss"));
            }
	  else
	    ms_type = mst_abs;
	  break;
	case stLabel:
	  /* Label */

          /* On certain platforms, some extra label symbols can be
             generated by the linker. One possible usage for this kind
             of symbols is to represent the address of the begining of a
             given section. For instance, on Tru64 5.1, the address of
             the _ftext label is the start address of the .text section.

             The storage class of these symbols is usually directly
             related to the section to which the symbol refers. For
             instance, on Tru64 5.1, the storage class for the _fdata
             label is scData, refering to the .data section.

             It is actually possible that the section associated to the
             storage class of the label does not exist. On True64 5.1
             for instance, the libm.so shared library does not contain
             any .data section, although it contains a _fpdata label
             which storage class is scData... Since these symbols are
             usually useless for the debugger user anyway, we just
             discard these symbols.
           */
          
	  if (SC_IS_TEXT (ext_in->asym.sc))
	    {
              if (objfile->sect_index_text == -1)
                continue;
                
	      ms_type = mst_file_text;
	      svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
	    }
	  else if (SC_IS_DATA (ext_in->asym.sc))
	    {
              if (objfile->sect_index_data == -1)
                continue;

	      ms_type = mst_file_data;
	      svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
	    }
	  else if (SC_IS_BSS (ext_in->asym.sc))
	    {
              if (objfile->sect_index_bss == -1)
                continue;

	      ms_type = mst_file_bss;
	      svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
	    }
          else if (SC_IS_SBSS (ext_in->asym.sc))
            {
              const int sbss_sect_index = get_section_index (objfile, ".sbss");

              if (sbss_sect_index == -1)
                continue;

              ms_type = mst_file_bss;
              svalue += ANOFFSET (objfile->section_offsets, sbss_sect_index);
            }
	  else
	    ms_type = mst_abs;
	  break;
	case stLocal:
	case stNil:
	  /* The alpha has the section start addresses in stLocal symbols
	     whose name starts with a `.'. Skip those but complain for all
	     other stLocal symbols.
	     Irix6 puts the section start addresses in stNil symbols, skip
	     those too. */
	  if (name[0] == '.')
	    continue;
	  /* Fall through.  */
	default:
	  ms_type = mst_unknown;
	  complain (&unknown_ext_complaint, name);
	}
      if (!ECOFF_IN_ELF (cur_bfd))
	prim_record_minimal_symbol (name, svalue, ms_type, objfile);
    }

  /* Pass 3 over files, over local syms: fill in static symbols */
  for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++)
    {
      struct partial_symtab *save_pst;
      EXTR *ext_ptr;
      CORE_ADDR textlow;

      cur_fdr = fh = debug_info->fdr + f_idx;

      if (fh->csym == 0)
	{
	  fdr_to_pst[f_idx].pst = NULL;
	  continue;
	}

      /* Determine the start address for this object file from the
         file header and relocate it, except for Irix 5.2 zero fh->adr.  */
      if (fh->cpd)
	{
	  textlow = fh->adr;
	  if (relocatable || textlow != 0)
	    textlow += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
	}
      else
	textlow = 0;
      pst = start_psymtab_common (objfile, objfile->section_offsets,
				  fdr_name (fh),
				  textlow,
				  objfile->global_psymbols.next,
				  objfile->static_psymbols.next);
      pst->read_symtab_private = ((char *)
				  obstack_alloc (&objfile->psymbol_obstack,
						 sizeof (struct symloc)));
      memset (pst->read_symtab_private, 0, sizeof (struct symloc));

      save_pst = pst;
      TEXTLOW (pst) = pst->textlow;
      TEXTHIGH (pst) = pst->texthigh;
      FDR_IDX (pst) = f_idx;
      CUR_BFD (pst) = cur_bfd;
      DEBUG_SWAP (pst) = debug_swap;
      DEBUG_INFO (pst) = debug_info;
      PENDING_LIST (pst) = pending_list;

      /* The way to turn this into a symtab is to call... */
      pst->read_symtab = mdebug_psymtab_to_symtab;

      /* Set up language for the pst.
         The language from the FDR is used if it is unambigious (e.g. cfront
         with native cc and g++ will set the language to C).
         Otherwise we have to deduce the language from the filename.
         Native ecoff has every header file in a separate FDR, so
         deduce_language_from_filename will return language_unknown for
         a header file, which is not what we want.
         But the FDRs for the header files are after the FDR for the source
         file, so we can assign the language of the source file to the
         following header files. Then we save the language in the private
         pst data so that we can reuse it when building symtabs.  */
      prev_language = psymtab_language;

      switch (fh->lang)
	{
	case langCplusplusV2:
	  psymtab_language = language_cplus;
	  break;
	default:
	  psymtab_language = deduce_language_from_filename (fdr_name (fh));
	  break;
	}
      if (psymtab_language == language_unknown)
	psymtab_language = prev_language;
      PST_PRIVATE (pst)->pst_language = psymtab_language;

      TEXTHIGH (pst) = TEXTLOW (pst);

      /* For stabs-in-ecoff files, the second symbol must be @stab.
         This symbol is emitted by mips-tfile to signal that the
         current object file uses encapsulated stabs instead of mips
         ecoff for local symbols.  (It is the second symbol because
         the first symbol is the stFile used to signal the start of a
         file). */
      processing_gcc_compilation = 0;
      if (fh->csym >= 2)
	{
	  (*swap_sym_in) (cur_bfd,
			  ((char *) debug_info->external_sym
			   + (fh->isymBase + 1) * external_sym_size),
			  &sh);
	  if (STREQ (debug_info->ss + fh->issBase + sh.iss, stabs_symbol))
	    processing_gcc_compilation = 2;
	}

      if (processing_gcc_compilation != 0)
	{
	  for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++)
	    {
	      int type_code;
	      char *namestring;

	      (*swap_sym_in) (cur_bfd,
			      (((char *) debug_info->external_sym)
			    + (fh->isymBase + cur_sdx) * external_sym_size),
			      &sh);
	      type_code = ECOFF_UNMARK_STAB (sh.index);
	      if (!ECOFF_IS_STAB (&sh))
		{
		  if (sh.st == stProc || sh.st == stStaticProc)
		    {
		      CORE_ADDR procaddr;
		      long isym;

		      sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
		      if (sh.st == stStaticProc)
			{
			  namestring = debug_info->ss + fh->issBase + sh.iss;
			  prim_record_minimal_symbol_and_info (namestring,
							       sh.value,
							       mst_file_text,
							       NULL,
							       SECT_OFF_TEXT (objfile),
							       NULL,
							       objfile);
			}
		      procaddr = sh.value;

		      isym = AUX_GET_ISYM (fh->fBigendian,
					   (debug_info->external_aux
					    + fh->iauxBase
					    + sh.index));
		      (*swap_sym_in) (cur_bfd,
				      ((char *) debug_info->external_sym
				       + ((fh->isymBase + isym - 1)
					  * external_sym_size)),
				      &sh);
		      if (sh.st == stEnd)
			{
			  CORE_ADDR high = procaddr + sh.value;

			  /* Kludge for Irix 5.2 zero fh->adr.  */
			  if (!relocatable
			  && (TEXTLOW (pst) == 0 || procaddr < TEXTLOW (pst)))
			    TEXTLOW (pst) = procaddr;
			  if (high > TEXTHIGH (pst))
			    TEXTHIGH (pst) = high;
			}
		    }
		  else if (sh.st == stStatic)
		    {
		      switch (sh.sc)
			{
			case scUndefined:
			case scSUndefined:
			case scNil:
			case scAbs:
			  break;

			case scData:
			case scSData:
			case scRData:
			case scPData:
			case scXData:
			  namestring = debug_info->ss + fh->issBase + sh.iss;
			  sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
			  prim_record_minimal_symbol_and_info (namestring,
							       sh.value,
							       mst_file_data,
							       NULL,
							       SECT_OFF_DATA (objfile),
							       NULL,
							       objfile);
			  break;

			default:
			  /* FIXME!  Shouldn't this use cases for bss, 
			     then have the default be abs? */
			  namestring = debug_info->ss + fh->issBase + sh.iss;
			  sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
			  prim_record_minimal_symbol_and_info (namestring,
							       sh.value,
							       mst_file_bss,
							       NULL,
							       SECT_OFF_BSS (objfile),
							       NULL,
							       objfile);
			  break;
			}
		    }
		  continue;
		}
	      /* Handle stabs continuation */
	      {
		char *stabstring = debug_info->ss + fh->issBase + sh.iss;
		int len = strlen (stabstring);
		while (stabstring[len - 1] == '\\')
		  {
		    SYMR sh2;
		    char *stabstring1 = stabstring;
		    char *stabstring2;
		    int len2;

		    /* Ignore continuation char from 1st string */
		    len--;

		    /* Read next stabstring */
		    cur_sdx++;
		    (*swap_sym_in) (cur_bfd,
				    (((char *) debug_info->external_sym)
				     + (fh->isymBase + cur_sdx)
				     * external_sym_size),
				    &sh2);
		    stabstring2 = debug_info->ss + fh->issBase + sh2.iss;
		    len2 = strlen (stabstring2);

		    /* Concatinate stabstring2 with stabstring1 */
		    if (stabstring
		     && stabstring != debug_info->ss + fh->issBase + sh.iss)
		      stabstring = xrealloc (stabstring, len + len2 + 1);
		    else
		      {
			stabstring = xmalloc (len + len2 + 1);
			strcpy (stabstring, stabstring1);
		      }
		    strcpy (stabstring + len, stabstring2);
		    len += len2;
		  }

		switch (type_code)
		  {
		    static struct complaint function_outside_compilation_unit = {
		      "function `%s' appears to be defined outside of all compilation units", 0, 0
		    };
		    char *p;
		    /*
		     * Standard, external, non-debugger, symbols
		     */

		  case N_TEXT | N_EXT:
		  case N_NBTEXT | N_EXT:
		    sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
		    goto record_it;

		  case N_DATA | N_EXT:
		  case N_NBDATA | N_EXT:
		    sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
		    goto record_it;

		  case N_BSS:
		  case N_BSS | N_EXT:
		  case N_NBBSS | N_EXT:
		  case N_SETV | N_EXT:		/* FIXME, is this in BSS? */
		    sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
		    goto record_it;

		  case N_ABS | N_EXT:
		  record_it:
		  continue;

		  /* Standard, local, non-debugger, symbols */

		  case N_NBTEXT:

		    /* We need to be able to deal with both N_FN or N_TEXT,
		       because we have no way of knowing whether the sys-supplied ld
		       or GNU ld was used to make the executable.  Sequents throw
		       in another wrinkle -- they renumbered N_FN.  */

		  case N_FN:
		  case N_FN_SEQ:
		  case N_TEXT:
		    continue;

		  case N_DATA:
		    sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
		    goto record_it;

		  case N_UNDF | N_EXT:
		    continue;			/* Just undefined, not COMMON */

		  case N_UNDF:
		    continue;

		    /* Lots of symbol types we can just ignore.  */

		  case N_ABS:
		  case N_NBDATA:
		  case N_NBBSS:
		    continue;

		    /* Keep going . . . */

		    /*
		     * Special symbol types for GNU
		     */
		  case N_INDR:
		  case N_INDR | N_EXT:
		  case N_SETA:
		  case N_SETA | N_EXT:
		  case N_SETT:
		  case N_SETT | N_EXT:
		  case N_SETD:
		  case N_SETD | N_EXT:
		  case N_SETB:
		  case N_SETB | N_EXT:
		  case N_SETV:
		    continue;

		    /*
		     * Debugger symbols
		     */

		  case N_SO:
		    {
		      CORE_ADDR valu;
		      static int prev_so_symnum = -10;
		      static int first_so_symnum;
		      char *p;
		      int prev_textlow_not_set;

		      valu = sh.value + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));

		      prev_textlow_not_set = textlow_not_set;

#ifdef SOFUN_ADDRESS_MAYBE_MISSING
		      /* A zero value is probably an indication for the SunPRO 3.0
			 compiler. end_psymtab explicitly tests for zero, so
			 don't relocate it.  */

		      if (sh.value == 0)
			{
			  textlow_not_set = 1;
			  valu = 0;
			}
		      else
			textlow_not_set = 0;
#else
		      textlow_not_set = 0;
#endif
		      past_first_source_file = 1;

		      if (prev_so_symnum != symnum - 1)
			{			/* Here if prev stab wasn't N_SO */
			  first_so_symnum = symnum;

			  if (pst)
			    {
			      pst = (struct partial_symtab *) 0;
			      includes_used = 0;
			      dependencies_used = 0;
			    }
			}

		      prev_so_symnum = symnum;

		      /* End the current partial symtab and start a new one */

		      /* SET_NAMESTRING ();*/
		      namestring = stabstring;

		      /* Null name means end of .o file.  Don't start a new one. */
		      if (*namestring == '\000')
			continue;

		      /* Some compilers (including gcc) emit a pair of initial N_SOs.
			 The first one is a directory name; the second the file name.
			 If pst exists, is empty, and has a filename ending in '/',
			 we assume the previous N_SO was a directory name. */

		      p = strrchr (namestring, '/');
		      if (p && *(p + 1) == '\000')
			continue;		/* Simply ignore directory name SOs */

		      /* Some other compilers (C++ ones in particular) emit useless
			 SOs for non-existant .c files.  We ignore all subsequent SOs that
			 immediately follow the first.  */

		      if (!pst)
			pst = save_pst;
		      continue;
		    }

		  case N_BINCL:
		    continue;

		  case N_SOL:
		    {
		      enum language tmp_language;
		      /* Mark down an include file in the current psymtab */

		      /* SET_NAMESTRING ();*/
		      namestring = stabstring;

		      tmp_language = deduce_language_from_filename (namestring);

		      /* Only change the psymtab's language if we've learned
			 something useful (eg. tmp_language is not language_unknown).
			 In addition, to match what start_subfile does, never change
			 from C++ to C.  */
		      if (tmp_language != language_unknown
			  && (tmp_language != language_c
			      || psymtab_language != language_cplus))
			psymtab_language = tmp_language;

		      /* In C++, one may expect the same filename to come round many
			 times, when code is coming alternately from the main file
			 and from inline functions in other files. So I check to see
			 if this is a file we've seen before -- either the main
			 source file, or a previously included file.

			 This seems to be a lot of time to be spending on N_SOL, but
			 things like "break c-exp.y:435" need to work (I
			 suppose the psymtab_include_list could be hashed or put
			 in a binary tree, if profiling shows this is a major hog).  */
		      if (pst && STREQ (namestring, pst->filename))
			continue;
		      {
			register int i;
			for (i = 0; i < includes_used; i++)
			  if (STREQ (namestring, psymtab_include_list[i]))
			    {
			      i = -1;
			      break;
			    }
			if (i == -1)
			  continue;
		      }

		      psymtab_include_list[includes_used++] = namestring;
		      if (includes_used >= includes_allocated)
			{
			  char **orig = psymtab_include_list;

			  psymtab_include_list = (char **)
			    alloca ((includes_allocated *= 2) *
				    sizeof (char *));
			  memcpy ((PTR) psymtab_include_list, (PTR) orig,
				  includes_used * sizeof (char *));
			}
		      continue;
		    }
		  case N_LSYM:			/* Typedef or automatic variable. */
		  case N_STSYM:		/* Data seg var -- static  */
		  case N_LCSYM:		/* BSS      "  */
		  case N_ROSYM:		/* Read-only data seg var -- static.  */
		  case N_NBSTS:		/* Gould nobase.  */
		  case N_NBLCS:		/* symbols.  */
		  case N_FUN:
		  case N_GSYM:			/* Global (extern) variable; can be
						   data or bss (sigh FIXME).  */

		    /* Following may probably be ignored; I'll leave them here
		       for now (until I do Pascal and Modula 2 extensions).  */

		  case N_PC:			/* I may or may not need this; I
						   suspect not.  */
		  case N_M2C:			/* I suspect that I can ignore this here. */
		  case N_SCOPE:		/* Same.   */

		    /*    SET_NAMESTRING ();*/
		    namestring = stabstring;
		    p = (char *) strchr (namestring, ':');
		    if (!p)
		      continue;			/* Not a debugging symbol.   */



		    /* Main processing section for debugging symbols which
		       the initial read through the symbol tables needs to worry
		       about.  If we reach this point, the symbol which we are
		       considering is definitely one we are interested in.
		       p must also contain the (valid) index into the namestring
		       which indicates the debugging type symbol.  */

		    switch (p[1])
		      {
		      case 'S':
			sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
#ifdef STATIC_TRANSFORM_NAME
			namestring = STATIC_TRANSFORM_NAME (namestring);
#endif
			add_psymbol_to_list (namestring, p - namestring,
					     VAR_NAMESPACE, LOC_STATIC,
					     &objfile->static_psymbols,
					     0, sh.value,
					     psymtab_language, objfile);
			continue;
		      case 'G':
			sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
			/* The addresses in these entries are reported to be
			   wrong.  See the code that reads 'G's for symtabs. */
			add_psymbol_to_list (namestring, p - namestring,
					     VAR_NAMESPACE, LOC_STATIC,
					     &objfile->global_psymbols,
					     0, sh.value,
					     psymtab_language, objfile);
			continue;

		      case 'T':
			/* When a 'T' entry is defining an anonymous enum, it
			   may have a name which is the empty string, or a
			   single space.  Since they're not really defining a
			   symbol, those shouldn't go in the partial symbol
			   table.  We do pick up the elements of such enums at
			   'check_enum:', below.  */
			if (p >= namestring + 2
			    || (p == namestring + 1
				&& namestring[0] != ' '))
			  {
			    add_psymbol_to_list (namestring, p - namestring,
						 STRUCT_NAMESPACE, LOC_TYPEDEF,
						 &objfile->static_psymbols,
						 sh.value, 0,
						 psymtab_language, objfile);
			    if (p[2] == 't')
			      {
				/* Also a typedef with the same name.  */
				add_psymbol_to_list (namestring, p - namestring,
						     VAR_NAMESPACE, LOC_TYPEDEF,
						     &objfile->static_psymbols,
						     sh.value, 0,
						     psymtab_language, objfile);
				p += 1;
			      }
			    /* The semantics of C++ state that "struct foo { ... }"
			       also defines a typedef for "foo".  Unfortuantely, cfront
			       never makes the typedef when translating from C++ to C.
			       We make the typedef here so that "ptype foo" works as
			       expected for cfront translated code.  */
			    else if (psymtab_language == language_cplus)
			      {
				/* Also a typedef with the same name.  */
				add_psymbol_to_list (namestring, p - namestring,
						     VAR_NAMESPACE, LOC_TYPEDEF,
						     &objfile->static_psymbols,
						     sh.value, 0,
						     psymtab_language, objfile);
			      }
			  }
			goto check_enum;
		      case 't':
			if (p != namestring)	/* a name is there, not just :T... */
			  {
			    add_psymbol_to_list (namestring, p - namestring,
						 VAR_NAMESPACE, LOC_TYPEDEF,
						 &objfile->static_psymbols,
						 sh.value, 0,
						 psymtab_language, objfile);
			  }
		      check_enum:
			/* If this is an enumerated type, we need to
			   add all the enum constants to the partial symbol
			   table.  This does not cover enums without names, e.g.
			   "enum {a, b} c;" in C, but fortunately those are
			   rare.  There is no way for GDB to find those from the
			   enum type without spending too much time on it.  Thus
			   to solve this problem, the compiler needs to put out the
			   enum in a nameless type.  GCC2 does this.  */

			/* We are looking for something of the form
			   <name> ":" ("t" | "T") [<number> "="] "e"
			   {<constant> ":" <value> ","} ";".  */

			/* Skip over the colon and the 't' or 'T'.  */
			p += 2;
			/* This type may be given a number.  Also, numbers can come
			   in pairs like (0,26).  Skip over it.  */
			while ((*p >= '0' && *p <= '9')
			       || *p == '(' || *p == ',' || *p == ')'
			       || *p == '=')
			  p++;

			if (*p++ == 'e')
			  {
			    /* The aix4 compiler emits extra crud before the members.  */
			    if (*p == '-')
			      {
				/* Skip over the type (?).  */
				while (*p != ':')
				  p++;

				/* Skip over the colon.  */
				p++;
			      }

			    /* We have found an enumerated type.  */
			    /* According to comments in read_enum_type
			       a comma could end it instead of a semicolon.
			       I don't know where that happens.
			       Accept either.  */
			    while (*p && *p != ';' && *p != ',')
			      {
				char *q;

				/* Check for and handle cretinous dbx symbol name
				   continuation!  */
				if (*p == '\\' || (*p == '?' && p[1] == '\0'))
				  p = next_symbol_text (objfile);

				/* Point to the character after the name
				   of the enum constant.  */
				for (q = p; *q && *q != ':'; q++)
				  ;
				/* Note that the value doesn't matter for
				   enum constants in psymtabs, just in symtabs.  */
				add_psymbol_to_list (p, q - p,
						     VAR_NAMESPACE, LOC_CONST,
						     &objfile->static_psymbols, 0,
						     0, psymtab_language, objfile);
				/* Point past the name.  */
				p = q;
				/* Skip over the value.  */
				while (*p && *p != ',')
				  p++;
				/* Advance past the comma.  */
				if (*p)
				  p++;
			      }
			  }
			continue;
		      case 'c':
			/* Constant, e.g. from "const" in Pascal.  */
			add_psymbol_to_list (namestring, p - namestring,
					     VAR_NAMESPACE, LOC_CONST,
					     &objfile->static_psymbols, sh.value,
					     0, psymtab_language, objfile);
			continue;

		      case 'f':
			if (! pst)
			  {
			    int name_len = p - namestring;
			    char *name = xmalloc (name_len + 1);
			    memcpy (name, namestring, name_len);
			    name[name_len] = '\0';
			    complain (&function_outside_compilation_unit, name);
			    xfree (name);
			  }
			sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
			add_psymbol_to_list (namestring, p - namestring,
					     VAR_NAMESPACE, LOC_BLOCK,
					     &objfile->static_psymbols,
					     0, sh.value,
					     psymtab_language, objfile);
			continue;

			/* Global functions were ignored here, but now they
			   are put into the global psymtab like one would expect.
			   They're also in the minimal symbol table.  */
		      case 'F':
			if (! pst)
			  {
			    int name_len = p - namestring;
			    char *name = xmalloc (name_len + 1);
			    memcpy (name, namestring, name_len);
			    name[name_len] = '\0';
			    complain (&function_outside_compilation_unit, name);
			    xfree (name);
			  }
			sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
			add_psymbol_to_list (namestring, p - namestring,
					     VAR_NAMESPACE, LOC_BLOCK,
					     &objfile->global_psymbols,
					     0, sh.value,
					     psymtab_language, objfile);
			continue;

			/* Two things show up here (hopefully); static symbols of
			   local scope (static used inside braces) or extensions
			   of structure symbols.  We can ignore both.  */
		      case 'V':
		      case '(':
		      case '0':
		      case '1':
		      case '2':
		      case '3':
		      case '4':
		      case '5':
		      case '6':
		      case '7':
		      case '8':
		      case '9':
		      case '-':
		      case '#':		/* for symbol identification (used in live ranges) */
			/* added to support cfront stabs strings */
		      case 'Z':		/* for definition continuations */
		      case 'P':		/* for prototypes */
			continue;

		      case ':':
			/* It is a C++ nested symbol.  We don't need to record it
			   (I don't think); if we try to look up foo::bar::baz,
			   then symbols for the symtab containing foo should get
			   read in, I think.  */
			/* Someone says sun cc puts out symbols like
			   /foo/baz/maclib::/usr/local/bin/maclib,
			   which would get here with a symbol type of ':'.  */
			continue;

		      default:
			/* Unexpected symbol descriptor.  The second and subsequent stabs
			   of a continued stab can show up here.  The question is
			   whether they ever can mimic a normal stab--it would be
			   nice if not, since we certainly don't want to spend the
			   time searching to the end of every string looking for
			   a backslash.  */

			complain (&unknown_symchar_complaint, p[1]);

			/* Ignore it; perhaps it is an extension that we don't
			   know about.  */
			continue;
		      }

		  case N_EXCL:
		    continue;

		  case N_ENDM:
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
		    /* Solaris 2 end of module, finish current partial symbol table.
		       END_PSYMTAB will set TEXTHIGH (pst) to the proper value, which
		       is necessary if a module compiled without debugging info
		       follows this module.  */
		    if (pst)
		      {
			pst = (struct partial_symtab *) 0;
			includes_used = 0;
			dependencies_used = 0;
		      }
#endif
		    continue;

		  case N_RBRAC:
		    if (sh.value > TEXTHIGH (save_pst))
		      TEXTHIGH (save_pst) = sh.value;
		    continue;
		  case N_EINCL:
		  case N_DSLINE:
		  case N_BSLINE:
		  case N_SSYM:			/* Claim: Structure or union element.
						   Hopefully, I can ignore this.  */
		  case N_ENTRY:		/* Alternate entry point; can ignore. */
		  case N_MAIN:			/* Can definitely ignore this.   */
		  case N_CATCH:		/* These are GNU C++ extensions */
		  case N_EHDECL:		/* that can safely be ignored here. */
		  case N_LENG:
		  case N_BCOMM:
		  case N_ECOMM:
		  case N_ECOML:
		  case N_FNAME:
		  case N_SLINE:
		  case N_RSYM:
		  case N_PSYM:
		  case N_LBRAC:
		  case N_NSYMS:		/* Ultrix 4.0: symbol count */
		  case N_DEFD:			/* GNU Modula-2 */
		  case N_ALIAS:		/* SunPro F77: alias name, ignore for now.  */

		  case N_OBJ:			/* useless types from Solaris */
		  case N_OPT:
		    /* These symbols aren't interesting; don't worry about them */

		    continue;

		  default:
		    /* If we haven't found it yet, ignore it.  It's probably some
		       new type we don't know about yet.  */
		    complain (&unknown_symtype_complaint,
			      local_hex_string (type_code)); /*CUR_SYMBOL_TYPE*/
		    continue;
		  }
		if (stabstring
		    && stabstring != debug_info->ss + fh->issBase + sh.iss)
		  xfree (stabstring);
	      }
	      /* end - Handle continuation */
	    }
	}
      else
	{
	  for (cur_sdx = 0; cur_sdx < fh->csym;)
	    {
	      char *name;
	      enum address_class class;

	      (*swap_sym_in) (cur_bfd,
			      ((char *) debug_info->external_sym
			       + ((fh->isymBase + cur_sdx)
				  * external_sym_size)),
			      &sh);

	      if (ECOFF_IS_STAB (&sh))
		{
		  cur_sdx++;
		  continue;
		}

	      /* Non absolute static symbols go into the minimal table.  */
	      if (SC_IS_UNDEF (sh.sc) || sh.sc == scNil
		  || (sh.index == indexNil
		      && (sh.st != stStatic || sh.sc == scAbs)))
		{
		  /* FIXME, premature? */
		  cur_sdx++;
		  continue;
		}

	      name = debug_info->ss + fh->issBase + sh.iss;

	      switch (sh.sc)
		{
		case scText:
		case scRConst:
		  /* The value of a stEnd symbol is the displacement from the
		     corresponding start symbol value, do not relocate it.  */
		  if (sh.st != stEnd)
		    sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
		  break;
		case scData:
		case scSData:
		case scRData:
		case scPData:
		case scXData:
		  sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
		  break;
		case scBss:
		case scSBss:
		  sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
		  break;
		}

	      switch (sh.st)
		{
		  CORE_ADDR high;
		  CORE_ADDR procaddr;
		  int new_sdx;

		case stStaticProc:
		  prim_record_minimal_symbol_and_info (name, sh.value,
						       mst_file_text, NULL,
						       SECT_OFF_TEXT (objfile), NULL,
						       objfile);

		  /* FALLTHROUGH */

		case stProc:
		  /* Usually there is a local and a global stProc symbol
		     for a function. This means that the function name
		     has already been entered into the mimimal symbol table
		     while processing the global symbols in pass 2 above.
		     One notable exception is the PROGRAM name from
		     f77 compiled executables, it is only put out as
		     local stProc symbol, and a global MAIN__ stProc symbol
		     points to it.  It doesn't matter though, as gdb is
		     still able to find the PROGRAM name via the partial
		     symbol table, and the MAIN__ symbol via the minimal
		     symbol table.  */
		  if (sh.st == stProc)
		    add_psymbol_to_list (name, strlen (name),
					 VAR_NAMESPACE, LOC_BLOCK,
					 &objfile->global_psymbols,
				    0, sh.value, psymtab_language, objfile);
		  else
		    add_psymbol_to_list (name, strlen (name),
					 VAR_NAMESPACE, LOC_BLOCK,
					 &objfile->static_psymbols,
				    0, sh.value, psymtab_language, objfile);

		  /* Skip over procedure to next one. */
		  if (sh.index >= hdr->iauxMax)
		    {
		      /* Should not happen, but does when cross-compiling
		         with the MIPS compiler.  FIXME -- pull later.  */
		      complain (&index_complaint, name);
		      new_sdx = cur_sdx + 1;	/* Don't skip at all */
		    }
		  else
		    new_sdx = AUX_GET_ISYM (fh->fBigendian,
					    (debug_info->external_aux
					     + fh->iauxBase
					     + sh.index));
		  procaddr = sh.value;

		  if (new_sdx <= cur_sdx)
		    {
		      /* This should not happen either... FIXME.  */
		      complain (&aux_index_complaint, name);
		      new_sdx = cur_sdx + 1;	/* Don't skip backward */
		    }

		  cur_sdx = new_sdx;
		  (*swap_sym_in) (cur_bfd,
				  ((char *) debug_info->external_sym
				   + ((fh->isymBase + cur_sdx - 1)
				      * external_sym_size)),
				  &sh);
		  if (sh.st != stEnd)
		    continue;

		  /* Kludge for Irix 5.2 zero fh->adr.  */
		  if (!relocatable
		      && (TEXTLOW (pst) == 0 || procaddr < TEXTLOW (pst)))
		    TEXTLOW (pst) = procaddr;

		  high = procaddr + sh.value;
		  if (high > TEXTHIGH (pst))
		    TEXTHIGH (pst) = high;
		  continue;

		case stStatic:	/* Variable */
		  if (SC_IS_DATA (sh.sc))
		    prim_record_minimal_symbol_and_info (name, sh.value,
							 mst_file_data, NULL,
							 SECT_OFF_DATA (objfile),
							 NULL,
							 objfile);
		  else
		    prim_record_minimal_symbol_and_info (name, sh.value,
							 mst_file_bss, NULL,
							 SECT_OFF_BSS (objfile),
							 NULL,
							 objfile);
		  class = LOC_STATIC;
		  break;

		case stIndirect:	/* Irix5 forward declaration */
		  /* Skip forward declarations from Irix5 cc */
		  goto skip;

		case stTypedef:	/* Typedef */
		  /* Skip typedefs for forward declarations and opaque
		     structs from alpha and mips cc.  */
		  if (sh.iss == 0 || has_opaque_xref (fh, &sh))
		    goto skip;
		  class = LOC_TYPEDEF;
		  break;

		case stConstant:	/* Constant decl */
		  class = LOC_CONST;
		  break;

		case stUnion:
		case stStruct:
		case stEnum:
		case stBlock:	/* { }, str, un, enum */
		  /* Do not create a partial symbol for cc unnamed aggregates
		     and gcc empty aggregates. */
		  if ((sh.sc == scInfo
		       || SC_IS_COMMON (sh.sc))
		      && sh.iss != 0
		      && sh.index != cur_sdx + 2)
		    {
		      add_psymbol_to_list (name, strlen (name),
					   STRUCT_NAMESPACE, LOC_TYPEDEF,
					   &objfile->static_psymbols,
					   0, (CORE_ADDR) 0,
					   psymtab_language, objfile);
		    }
		  handle_psymbol_enumerators (objfile, fh, sh.st, sh.value);

		  /* Skip over the block */
		  new_sdx = sh.index;
		  if (new_sdx <= cur_sdx)
		    {
		      /* This happens with the Ultrix kernel. */
		      complain (&block_index_complaint, name);
		      new_sdx = cur_sdx + 1;	/* Don't skip backward */
		    }
		  cur_sdx = new_sdx;
		  continue;

		case stFile:	/* File headers */
		case stLabel:	/* Labels */
		case stEnd:	/* Ends of files */
		  goto skip;

		case stLocal:	/* Local variables */
		  /* Normally these are skipped because we skip over
		     all blocks we see.  However, these can occur
		     as visible symbols in a .h file that contains code. */
		  goto skip;

		default:
		  /* Both complaints are valid:  one gives symbol name,
		     the other the offending symbol type.  */
		  complain (&unknown_sym_complaint, name);
		  complain (&unknown_st_complaint, sh.st);
		  cur_sdx++;
		  continue;
		}
	      /* Use this gdb symbol */
	      add_psymbol_to_list (name, strlen (name),
				   VAR_NAMESPACE, class,
				   &objfile->static_psymbols,
				   0, sh.value, psymtab_language, objfile);
	    skip:
	      cur_sdx++;	/* Go to next file symbol */
	    }

	  /* Now do enter the external symbols. */
	  ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset];
	  cur_sdx = fdr_to_pst[f_idx].n_globals;
	  PST_PRIVATE (save_pst)->extern_count = cur_sdx;
	  PST_PRIVATE (save_pst)->extern_tab = ext_ptr;
	  for (; --cur_sdx >= 0; ext_ptr++)
	    {
	      enum address_class class;
	      SYMR *psh;
	      char *name;
	      CORE_ADDR svalue;

	      if (ext_ptr->ifd != f_idx)
		internal_error (__FILE__, __LINE__, "failed internal consistency check");
	      psh = &ext_ptr->asym;

	      /* Do not add undefined symbols to the partial symbol table.  */
	      if (SC_IS_UNDEF (psh->sc) || psh->sc == scNil)
		continue;

	      svalue = psh->value;
	      switch (psh->sc)
		{
		case scText:
		case scRConst:
		  svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
		  break;
		case scData:
		case scSData:
		case scRData:
		case scPData:
		case scXData:
		  svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
		  break;
		case scBss:
		case scSBss:
		  svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
		  break;
		}

	      switch (psh->st)
		{
		case stNil:
		  /* These are generated for static symbols in .o files,
		     ignore them.  */
		  continue;
		case stProc:
		case stStaticProc:
		  /* External procedure symbols have been entered
		     into the minimal symbol table in pass 2 above.
		     Ignore them, as parse_external will ignore them too.  */
		  continue;
		case stLabel:
		  class = LOC_LABEL;
		  break;
		default:
		  complain (&unknown_ext_complaint,
			    debug_info->ssext + psh->iss);
		  /* Fall through, pretend it's global.  */
		case stGlobal:
		  /* Global common symbols are resolved by the runtime loader,
		     ignore them.  */
		  if (SC_IS_COMMON (psh->sc))
		    continue;

		  class = LOC_STATIC;
		  break;
		}
	      name = debug_info->ssext + psh->iss;
	      add_psymbol_to_list (name, strlen (name),
				   VAR_NAMESPACE, class,
				   &objfile->global_psymbols,
				   0, svalue,
				   psymtab_language, objfile);
	    }
	}

      /* Link pst to FDR. end_psymtab returns NULL if the psymtab was
         empty and put on the free list.  */
      fdr_to_pst[f_idx].pst = end_psymtab (save_pst,
					psymtab_include_list, includes_used,
					   -1, TEXTHIGH (save_pst),
		       dependency_list, dependencies_used, textlow_not_set);
      includes_used = 0;
      dependencies_used = 0;

      if (objfile->ei.entry_point >= TEXTLOW (save_pst) &&
	  objfile->ei.entry_point < TEXTHIGH (save_pst))
	{
	  objfile->ei.entry_file_lowpc = TEXTLOW (save_pst);
	  objfile->ei.entry_file_highpc = TEXTHIGH (save_pst);
	}

      /* The objfile has its functions reordered if this partial symbol
         table overlaps any other partial symbol table.
         We cannot assume a reordered objfile if a partial symbol table
         is contained within another partial symbol table, as partial symbol
         tables for include files with executable code are contained
         within the partial symbol table for the including source file,
         and we do not want to flag the objfile reordered for these cases.

         This strategy works well for Irix-5.2 shared libraries, but we
         might have to use a more elaborate (and slower) algorithm for
         other cases.  */
      save_pst = fdr_to_pst[f_idx].pst;
      if (save_pst != NULL
	  && TEXTLOW (save_pst) != 0
	  && !(objfile->flags & OBJF_REORDERED))
	{
	  ALL_OBJFILE_PSYMTABS (objfile, pst)
	  {
	    if (save_pst != pst
		&& TEXTLOW (save_pst) >= TEXTLOW (pst)
		&& TEXTLOW (save_pst) < TEXTHIGH (pst)
		&& TEXTHIGH (save_pst) > TEXTHIGH (pst))
	      {
		objfile->flags |= OBJF_REORDERED;
		break;
	      }
	  }
	}
    }

  /* Now scan the FDRs for dependencies */
  for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++)
    {
      fh = f_idx + debug_info->fdr;
      pst = fdr_to_pst[f_idx].pst;

      if (pst == (struct partial_symtab *) NULL)
	continue;

      /* This should catch stabs-in-ecoff. */
      if (fh->crfd <= 1)
	continue;

      /* Skip the first file indirect entry as it is a self dependency
         for source files or a reverse .h -> .c dependency for header files.  */
      pst->number_of_dependencies = 0;
      pst->dependencies =
	((struct partial_symtab **)
	 obstack_alloc (&objfile->psymbol_obstack,
			((fh->crfd - 1)
			 * sizeof (struct partial_symtab *))));
      for (s_idx = 1; s_idx < fh->crfd; s_idx++)
	{
	  RFDT rh;

	  (*swap_rfd_in) (cur_bfd,
			  ((char *) debug_info->external_rfd
			   + (fh->rfdBase + s_idx) * external_rfd_size),
			  &rh);
	  if (rh < 0 || rh >= hdr->ifdMax)
	    {
	      complain (&bad_file_number_complaint, rh);
	      continue;
	    }

	  /* Skip self dependencies of header files.  */
	  if (rh == f_idx)
	    continue;

	  /* Do not add to dependeny list if psymtab was empty.  */
	  if (fdr_to_pst[rh].pst == (struct partial_symtab *) NULL)
	    continue;
	  pst->dependencies[pst->number_of_dependencies++] = fdr_to_pst[rh].pst;
	}
    }

  /* Remove the dummy psymtab created for -O3 images above, if it is
     still empty, to enable the detection of stripped executables.  */
  if (objfile->psymtabs->next == NULL
      && objfile->psymtabs->number_of_dependencies == 0
      && objfile->psymtabs->n_global_syms == 0
      && objfile->psymtabs->n_static_syms == 0)
    objfile->psymtabs = NULL;
  do_cleanups (old_chain);
}

/* If the current psymbol has an enumerated type, we need to add
   all the the enum constants to the partial symbol table.  */

static void
handle_psymbol_enumerators (struct objfile *objfile, FDR *fh, int stype,
			    CORE_ADDR svalue)
{
  const bfd_size_type external_sym_size = debug_swap->external_sym_size;
  void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in;
  char *ext_sym = ((char *) debug_info->external_sym
		   + ((fh->isymBase + cur_sdx + 1) * external_sym_size));
  SYMR sh;
  TIR tir;

  switch (stype)
    {
    case stEnum:
      break;

    case stBlock:
      /* It is an enumerated type if the next symbol entry is a stMember
         and its auxiliary index is indexNil or its auxiliary entry
         is a plain btNil or btVoid.
         Alpha cc -migrate enums are recognized by a zero index and
         a zero symbol value.
         DU 4.0 cc enums are recognized by a member type of btEnum without
         qualifiers and a zero symbol value.  */
      (*swap_sym_in) (cur_bfd, ext_sym, &sh);
      if (sh.st != stMember)
	return;

      if (sh.index == indexNil
	  || (sh.index == 0 && svalue == 0))
	break;
      (*debug_swap->swap_tir_in) (fh->fBigendian,
				  &(debug_info->external_aux
				    + fh->iauxBase + sh.index)->a_ti,
				  &tir);
      if ((tir.bt != btNil
	   && tir.bt != btVoid
	   && (tir.bt != btEnum || svalue != 0))
	  || tir.tq0 != tqNil)
	return;
      break;

    default:
      return;
    }

  for (;;)
    {
      char *name;

      (*swap_sym_in) (cur_bfd, ext_sym, &sh);
      if (sh.st != stMember)
	break;
      name = debug_info->ss + cur_fdr->issBase + sh.iss;

      /* Note that the value doesn't matter for enum constants
         in psymtabs, just in symtabs.  */
      add_psymbol_to_list (name, strlen (name),
			   VAR_NAMESPACE, LOC_CONST,
			   &objfile->static_psymbols, 0,
			   (CORE_ADDR) 0, psymtab_language, objfile);
      ext_sym += external_sym_size;
    }
}

/* Get the next symbol.  OBJFILE is unused. */

static char *
mdebug_next_symbol_text (struct objfile *objfile)
{
  SYMR sh;

  cur_sdx++;
  (*debug_swap->swap_sym_in) (cur_bfd,
			      ((char *) debug_info->external_sym
			       + ((cur_fdr->isymBase + cur_sdx)
				  * debug_swap->external_sym_size)),
			      &sh);
  return debug_info->ss + cur_fdr->issBase + sh.iss;
}

/* Ancillary function to psymtab_to_symtab().  Does all the work
   for turning the partial symtab PST into a symtab, recurring
   first on all dependent psymtabs.  The argument FILENAME is
   only passed so we can see in debug stack traces what file
   is being read.

   This function has a split personality, based on whether the
   symbol table contains ordinary ecoff symbols, or stabs-in-ecoff.
   The flow of control and even the memory allocation differs.  FIXME.  */

static void
psymtab_to_symtab_1 (struct partial_symtab *pst, char *filename)
{
  bfd_size_type external_sym_size;
  bfd_size_type external_pdr_size;
  void (*swap_sym_in) (bfd *, void *, SYMR *);
  void (*swap_pdr_in) (bfd *, void *, PDR *);
  int i;
  struct symtab *st = NULL;
  FDR *fh;
  struct linetable *lines;
  CORE_ADDR lowest_pdr_addr = 0;
  int last_symtab_ended = 0;

  if (pst->readin)
    return;
  pst->readin = 1;

  /* Read in all partial symbtabs on which this one is dependent.
     NOTE that we do have circular dependencies, sigh.  We solved
     that by setting pst->readin before this point.  */

  for (i = 0; i < pst->number_of_dependencies; i++)
    if (!pst->dependencies[i]->readin)
      {
	/* Inform about additional files to be read in.  */
	if (info_verbose)
	  {
	    fputs_filtered (" ", gdb_stdout);
	    wrap_here ("");
	    fputs_filtered ("and ", gdb_stdout);
	    wrap_here ("");
	    printf_filtered ("%s...",
			     pst->dependencies[i]->filename);
	    wrap_here ("");	/* Flush output */
	    gdb_flush (gdb_stdout);
	  }
	/* We only pass the filename for debug purposes */
	psymtab_to_symtab_1 (pst->dependencies[i],
			     pst->dependencies[i]->filename);
      }

  /* Do nothing if this is a dummy psymtab.  */

  if (pst->n_global_syms == 0 && pst->n_static_syms == 0
      && TEXTLOW (pst) == 0 && TEXTHIGH (pst) == 0)
    return;

  /* Now read the symbols for this symtab */

  cur_bfd = CUR_BFD (pst);
  debug_swap = DEBUG_SWAP (pst);
  debug_info = DEBUG_INFO (pst);
  pending_list = PENDING_LIST (pst);
  external_sym_size = debug_swap->external_sym_size;
  external_pdr_size = debug_swap->external_pdr_size;
  swap_sym_in = debug_swap->swap_sym_in;
  swap_pdr_in = debug_swap->swap_pdr_in;
  current_objfile = pst->objfile;
  cur_fd = FDR_IDX (pst);
  fh = ((cur_fd == -1)
	? (FDR *) NULL
	: debug_info->fdr + cur_fd);
  cur_fdr = fh;

  /* See comment in parse_partial_symbols about the @stabs sentinel. */
  processing_gcc_compilation = 0;
  if (fh != (FDR *) NULL && fh->csym >= 2)
    {
      SYMR sh;

      (*swap_sym_in) (cur_bfd,
		      ((char *) debug_info->external_sym
		       + (fh->isymBase + 1) * external_sym_size),
		      &sh);
      if (STREQ (debug_info->ss + fh->issBase + sh.iss,
		 stabs_symbol))
	{
	  /* We indicate that this is a GCC compilation so that certain
	     features will be enabled in stabsread/dbxread.  */
	  processing_gcc_compilation = 2;
	}
    }

  if (processing_gcc_compilation != 0)
    {

      /* This symbol table contains stabs-in-ecoff entries.  */

      /* Parse local symbols first */

      if (fh->csym <= 2)	/* FIXME, this blows psymtab->symtab ptr */
	{
	  current_objfile = NULL;
	  return;
	}
      for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++)
	{
	  SYMR sh;
	  char *name;
	  CORE_ADDR valu;

	  (*swap_sym_in) (cur_bfd,
			  (((char *) debug_info->external_sym)
			   + (fh->isymBase + cur_sdx) * external_sym_size),
			  &sh);
	  name = debug_info->ss + fh->issBase + sh.iss;
	  valu = sh.value;
	  /* XXX This is a hack.  It will go away!  */
	  if (ECOFF_IS_STAB (&sh) || (name[0] == '#'))
	    {
	      int type_code = ECOFF_UNMARK_STAB (sh.index);

	      /* We should never get non N_STAB symbols here, but they
	         should be harmless, so keep process_one_symbol from
	         complaining about them.  */
	      if (type_code & N_STAB)
		{
		  /* If we found a trailing N_SO with no name, process
                     it here instead of in process_one_symbol, so we
                     can keep a handle to its symtab.  The symtab
                     would otherwise be ended twice, once in
                     process_one_symbol, and once after this loop. */
		  if (type_code == N_SO
		      && last_source_file
		      && previous_stab_code != (unsigned char) N_SO
		      && *name == '\000')
		    {
		      valu += ANOFFSET (pst->section_offsets,
					SECT_OFF_TEXT (pst->objfile));
		      previous_stab_code = N_SO;
		      st = end_symtab (valu, pst->objfile,
				       SECT_OFF_TEXT (pst->objfile));
		      end_stabs ();
		      last_symtab_ended = 1;
		    }
		  else
		    {
		      last_symtab_ended = 0;
		      process_one_symbol (type_code, 0, valu, name,
					  pst->section_offsets, pst->objfile);
		    }
		}
	      /* Similarly a hack.  */
	      else if (name[0] == '#')
		{
		  process_one_symbol (N_SLINE, 0, valu, name,
				      pst->section_offsets, pst->objfile);
		}
	      if (type_code == N_FUN)
		{
		  /* Make up special symbol to contain
		     procedure specific info */
		  struct mips_extra_func_info *e =
		  ((struct mips_extra_func_info *)
		   obstack_alloc (&current_objfile->symbol_obstack,
				  sizeof (struct mips_extra_func_info)));
		  struct symbol *s = new_symbol (MIPS_EFI_SYMBOL_NAME);

		  memset (e, 0, sizeof (struct mips_extra_func_info));
		  SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE;
		  SYMBOL_CLASS (s) = LOC_CONST;
		  SYMBOL_TYPE (s) = mdebug_type_void;
		  SYMBOL_VALUE (s) = (long) e;
		  e->pdr.framereg = -1;
		  add_symbol_to_list (s, &local_symbols);
		}
	    }
	  else if (sh.st == stLabel)
	    {
	      if (sh.index == indexNil)
		{
		  /* This is what the gcc2_compiled and __gnu_compiled_*
		     show up as.  So don't complain.  */
		  ;
		}
	      else
		{
		  /* Handle encoded stab line number. */
		  valu += ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile));
		  record_line (current_subfile, sh.index, valu);
		}
	    }
	  else if (sh.st == stProc || sh.st == stStaticProc
		   || sh.st == stStatic || sh.st == stEnd)
	    /* These are generated by gcc-2.x, do not complain */
	    ;
	  else
	    complain (&stab_unknown_complaint, name);
	}

      if (! last_symtab_ended)
	{
	  st = end_symtab (TEXTHIGH (pst), pst->objfile, SECT_OFF_TEXT (pst->objfile));
	  end_stabs ();
	}

      /* Sort the symbol table now, we are done adding symbols to it.
         We must do this before parse_procedure calls lookup_symbol.  */
      sort_symtab_syms (st);

      /* There used to be a call to sort_blocks here, but this should not
         be necessary for stabs symtabs.  And as sort_blocks modifies the
         start address of the GLOBAL_BLOCK to the FIRST_LOCAL_BLOCK,
         it did the wrong thing if the first procedure in a file was
         generated via asm statements.  */

      /* Fill in procedure info next.  */
      if (fh->cpd > 0)
	{
	  PDR *pr_block;
	  struct cleanup *old_chain;
	  char *pdr_ptr;
	  char *pdr_end;
	  PDR *pdr_in;
	  PDR *pdr_in_end;

	  pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR));
	  old_chain = make_cleanup (xfree, pr_block);

	  pdr_ptr = ((char *) debug_info->external_pdr
		     + fh->ipdFirst * external_pdr_size);
	  pdr_end = pdr_ptr + fh->cpd * external_pdr_size;
	  pdr_in = pr_block;
	  for (;
	       pdr_ptr < pdr_end;
	       pdr_ptr += external_pdr_size, pdr_in++)
	    {
	      (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);

	      /* Determine lowest PDR address, the PDRs are not always
	         sorted.  */
	      if (pdr_in == pr_block)
		lowest_pdr_addr = pdr_in->adr;
	      else if (pdr_in->adr < lowest_pdr_addr)
		lowest_pdr_addr = pdr_in->adr;
	    }

	  pdr_in = pr_block;
	  pdr_in_end = pdr_in + fh->cpd;
	  for (; pdr_in < pdr_in_end; pdr_in++)
	    parse_procedure (pdr_in, st, pst);

	  do_cleanups (old_chain);
	}
    }
  else
    {
      /* This symbol table contains ordinary ecoff entries.  */

      int f_max;
      int maxlines;
      EXTR *ext_ptr;

      /* How many symbols will we need */
      /* FIXME, this does not count enum values. */
      f_max = pst->n_global_syms + pst->n_static_syms;
      if (fh == 0)
	{
	  maxlines = 0;
	  st = new_symtab ("unknown", f_max, 0, pst->objfile);
	}
      else
	{
	  f_max += fh->csym + fh->cpd;
	  maxlines = 2 * fh->cline;
	  st = new_symtab (pst->filename, 2 * f_max, maxlines, pst->objfile);

	  /* The proper language was already determined when building
	     the psymtab, use it.  */
	  st->language = PST_PRIVATE (pst)->pst_language;
	}

      psymtab_language = st->language;

      lines = LINETABLE (st);

      /* Get a new lexical context */

      push_parse_stack ();
      top_stack->cur_st = st;
      top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (st),
						STATIC_BLOCK);
      BLOCK_START (top_stack->cur_block) = TEXTLOW (pst);
      BLOCK_END (top_stack->cur_block) = 0;
      top_stack->blocktype = stFile;
      top_stack->maxsyms = 2 * f_max;
      top_stack->cur_type = 0;
      top_stack->procadr = 0;
      top_stack->numargs = 0;
      found_ecoff_debugging_info = 0;

      if (fh)
	{
	  char *sym_ptr;
	  char *sym_end;

	  /* Parse local symbols first */
	  sym_ptr = ((char *) debug_info->external_sym
		     + fh->isymBase * external_sym_size);
	  sym_end = sym_ptr + fh->csym * external_sym_size;
	  while (sym_ptr < sym_end)
	    {
	      SYMR sh;
	      int c;

	      (*swap_sym_in) (cur_bfd, sym_ptr, &sh);
	      c = parse_symbol (&sh,
				debug_info->external_aux + fh->iauxBase,
				sym_ptr, fh->fBigendian, pst->section_offsets, pst->objfile);
	      sym_ptr += c * external_sym_size;
	    }

	  /* Linenumbers.  At the end, check if we can save memory.
	     parse_lines has to look ahead an arbitrary number of PDR
	     structures, so we swap them all first.  */
	  if (fh->cpd > 0)
	    {
	      PDR *pr_block;
	      struct cleanup *old_chain;
	      char *pdr_ptr;
	      char *pdr_end;
	      PDR *pdr_in;
	      PDR *pdr_in_end;

	      pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR));

	      old_chain = make_cleanup (xfree, pr_block);

	      pdr_ptr = ((char *) debug_info->external_pdr
			 + fh->ipdFirst * external_pdr_size);
	      pdr_end = pdr_ptr + fh->cpd * external_pdr_size;
	      pdr_in = pr_block;
	      for (;
		   pdr_ptr < pdr_end;
		   pdr_ptr += external_pdr_size, pdr_in++)
		{
		  (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);

		  /* Determine lowest PDR address, the PDRs are not always
		     sorted.  */
		  if (pdr_in == pr_block)
		    lowest_pdr_addr = pdr_in->adr;
		  else if (pdr_in->adr < lowest_pdr_addr)
		    lowest_pdr_addr = pdr_in->adr;
		}

	      parse_lines (fh, pr_block, lines, maxlines, pst, lowest_pdr_addr);
	      if (lines->nitems < fh->cline)
		lines = shrink_linetable (lines);

	      /* Fill in procedure info next.  */
	      pdr_in = pr_block;
	      pdr_in_end = pdr_in + fh->cpd;
	      for (; pdr_in < pdr_in_end; pdr_in++)
		parse_procedure (pdr_in, 0, pst);

	      do_cleanups (old_chain);
	    }
	}

      LINETABLE (st) = lines;

      /* .. and our share of externals.
         XXX use the global list to speed up things here. how?
         FIXME, Maybe quit once we have found the right number of ext's? */
      top_stack->cur_st = st;
      top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st),
						GLOBAL_BLOCK);
      top_stack->blocktype = stFile;
      top_stack->maxsyms
	= (debug_info->symbolic_header.isymMax
	   + debug_info->symbolic_header.ipdMax
	   + debug_info->symbolic_header.iextMax);

      ext_ptr = PST_PRIVATE (pst)->extern_tab;
      for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++)
	parse_external (ext_ptr, fh->fBigendian, pst->section_offsets, pst->objfile);

      /* If there are undefined symbols, tell the user.
         The alpha has an undefined symbol for every symbol that is
         from a shared library, so tell the user only if verbose is on.  */
      if (info_verbose && n_undef_symbols)
	{
	  printf_filtered ("File %s contains %d unresolved references:",
			   st->filename, n_undef_symbols);
	  printf_filtered ("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n",
			   n_undef_vars, n_undef_procs, n_undef_labels);
	  n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0;

	}
      pop_parse_stack ();

      st->primary = 1;

      /* Sort the symbol table now, we are done adding symbols to it. */
      sort_symtab_syms (st);

      sort_blocks (st);
    }

  /* Now link the psymtab and the symtab.  */
  pst->symtab = st;

  current_objfile = NULL;
}

/* Ancillary parsing procedures. */

/* Return 1 if the symbol pointed to by SH has a cross reference
   to an opaque aggregate type, else 0.  */

static int
has_opaque_xref (FDR *fh, SYMR *sh)
{
  TIR tir;
  union aux_ext *ax;
  RNDXR rn[1];
  unsigned int rf;

  if (sh->index == indexNil)
    return 0;

  ax = debug_info->external_aux + fh->iauxBase + sh->index;
  (*debug_swap->swap_tir_in) (fh->fBigendian, &ax->a_ti, &tir);
  if (tir.bt != btStruct && tir.bt != btUnion && tir.bt != btEnum)
    return 0;

  ax++;
  (*debug_swap->swap_rndx_in) (fh->fBigendian, &ax->a_rndx, rn);
  if (rn->rfd == 0xfff)
    rf = AUX_GET_ISYM (fh->fBigendian, ax + 1);
  else
    rf = rn->rfd;
  if (rf != -1)
    return 0;
  return 1;
}

/* Lookup the type at relative index RN.  Return it in TPP
   if found and in any event come up with its name PNAME.
   BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian).
   Return value says how many aux symbols we ate. */

static int
cross_ref (int fd, union aux_ext *ax, struct type **tpp, enum type_code type_code,	/* Use to alloc new type if none is found. */
	   char **pname, int bigend, char *sym_name)
{
  RNDXR rn[1];
  unsigned int rf;
  int result = 1;
  FDR *fh;
  char *esh;
  SYMR sh;
  int xref_fd;
  struct mdebug_pending *pend;

  *tpp = (struct type *) NULL;

  (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn);

  /* Escape index means 'the next one' */
  if (rn->rfd == 0xfff)
    {
      result++;
      rf = AUX_GET_ISYM (bigend, ax + 1);
    }
  else
    {
      rf = rn->rfd;
    }

  /* mips cc uses a rf of -1 for opaque struct definitions.
     Set TYPE_FLAG_STUB for these types so that check_typedef will
     resolve them if the struct gets defined in another compilation unit.  */
  if (rf == -1)
    {
      *pname = "<undefined>";
      *tpp = init_type (type_code, 0, TYPE_FLAG_STUB, (char *) NULL, current_objfile);
      return result;
    }

  /* mips cc uses an escaped rn->index of 0 for struct return types
     of procedures that were compiled without -g. These will always remain
     undefined.  */
  if (rn->rfd == 0xfff && rn->index == 0)
    {
      *pname = "<undefined>";
      return result;
    }

  /* Find the relative file descriptor and the symbol in it.  */
  fh = get_rfd (fd, rf);
  xref_fd = fh - debug_info->fdr;

  if (rn->index >= fh->csym)
    {
      /* File indirect entry is corrupt.  */
      *pname = "<illegal>";
      complain (&bad_rfd_entry_complaint,
		sym_name, xref_fd, rn->index);
      return result;
    }

  /* If we have processed this symbol then we left a forwarding
     pointer to the type in the pending list.  If not, we`ll put
     it in a list of pending types, to be processed later when
     the file will be.  In any event, we collect the name for the
     type here.  */

  esh = ((char *) debug_info->external_sym
	 + ((fh->isymBase + rn->index)
	    * debug_swap->external_sym_size));
  (*debug_swap->swap_sym_in) (cur_bfd, esh, &sh);

  /* Make sure that this type of cross reference can be handled.  */
  if ((sh.sc != scInfo
       || (sh.st != stBlock && sh.st != stTypedef && sh.st != stIndirect
	   && sh.st != stStruct && sh.st != stUnion
	   && sh.st != stEnum))
      && (sh.st != stBlock || !SC_IS_COMMON (sh.sc)))
    {
      /* File indirect entry is corrupt.  */
      *pname = "<illegal>";
      complain (&bad_rfd_entry_complaint,
		sym_name, xref_fd, rn->index);
      return result;
    }

  *pname = debug_info->ss + fh->issBase + sh.iss;

  pend = is_pending_symbol (fh, esh);
  if (pend)
    *tpp = pend->t;
  else
    {
      /* We have not yet seen this type.  */

      if ((sh.iss == 0 && sh.st == stTypedef) || sh.st == stIndirect)
	{
	  TIR tir;

	  /* alpha cc puts out a stTypedef with a sh.iss of zero for
	     two cases:
	     a) forward declarations of structs/unions/enums which are not
	     defined in this compilation unit.
	     For these the type will be void. This is a bad design decision
	     as cross referencing across compilation units is impossible
	     due to the missing name.
	     b) forward declarations of structs/unions/enums/typedefs which
	     are defined later in this file or in another file in the same
	     compilation unit. Irix5 cc uses a stIndirect symbol for this.
	     Simply cross reference those again to get the true type.
	     The forward references are not entered in the pending list and
	     in the symbol table.  */

	  (*debug_swap->swap_tir_in) (bigend,
				      &(debug_info->external_aux
					+ fh->iauxBase + sh.index)->a_ti,
				      &tir);
	  if (tir.tq0 != tqNil)
	    complain (&illegal_forward_tq0_complaint, sym_name);
	  switch (tir.bt)
	    {
	    case btVoid:
	      *tpp = init_type (type_code, 0, 0, (char *) NULL,
				current_objfile);
	      *pname = "<undefined>";
	      break;

	    case btStruct:
	    case btUnion:
	    case btEnum:
	      cross_ref (xref_fd,
			 (debug_info->external_aux
			  + fh->iauxBase + sh.index + 1),
			 tpp, type_code, pname,
			 fh->fBigendian, sym_name);
	      break;

	    case btTypedef:
	      /* Follow a forward typedef. This might recursively
	         call cross_ref till we get a non typedef'ed type.
	         FIXME: This is not correct behaviour, but gdb currently
	         cannot handle typedefs without type copying. Type
	         copying is impossible as we might have mutual forward
	         references between two files and the copied type would not
	         get filled in when we later parse its definition.  */
	      *tpp = parse_type (xref_fd,
				 debug_info->external_aux + fh->iauxBase,
				 sh.index,
				 (int *) NULL,
				 fh->fBigendian,
				 debug_info->ss + fh->issBase + sh.iss);
	      add_pending (fh, esh, *tpp);
	      break;

	    default:
	      complain (&illegal_forward_bt_complaint, tir.bt, sym_name);
	      *tpp = init_type (type_code, 0, 0, (char *) NULL,
				current_objfile);
	      break;
	    }
	  return result;
	}
      else if (sh.st == stTypedef)
	{
	  /* Parse the type for a normal typedef. This might recursively call
	     cross_ref till we get a non typedef'ed type.
	     FIXME: This is not correct behaviour, but gdb currently
	     cannot handle typedefs without type copying. But type copying is
	     impossible as we might have mutual forward references between
	     two files and the copied type would not get filled in when
	     we later parse its definition.   */
	  *tpp = parse_type (xref_fd,
			     debug_info->external_aux + fh->iauxBase,
			     sh.index,
			     (int *) NULL,
			     fh->fBigendian,
			     debug_info->ss + fh->issBase + sh.iss);
	}
      else
	{
	  /* Cross reference to a struct/union/enum which is defined
	     in another file in the same compilation unit but that file
	     has not been parsed yet.
	     Initialize the type only, it will be filled in when
	     it's definition is parsed.  */
	  *tpp = init_type (type_code, 0, 0, (char *) NULL, current_objfile);
	}
      add_pending (fh, esh, *tpp);
    }

  /* We used one auxent normally, two if we got a "next one" rf. */
  return result;
}


/* Quick&dirty lookup procedure, to avoid the MI ones that require
   keeping the symtab sorted */

static struct symbol *
mylookup_symbol (char *name, register struct block *block,
		 namespace_enum namespace, enum address_class class)
{
  int i, inc;
  struct symbol *sym;

  inc = name[0];
  ALL_BLOCK_SYMBOLS (block, i, sym)
    {
      if (SYMBOL_NAME (sym)[0] == inc
	  && SYMBOL_NAMESPACE (sym) == namespace
	  && SYMBOL_CLASS (sym) == class
	  && strcmp (SYMBOL_NAME (sym), name) == 0)
	return sym;
    }

  block = BLOCK_SUPERBLOCK (block);
  if (block)
    return mylookup_symbol (name, block, namespace, class);
  return 0;
}


/* Add a new symbol S to a block B.
   Infrequently, we will need to reallocate the block to make it bigger.
   We only detect this case when adding to top_stack->cur_block, since
   that's the only time we know how big the block is.  FIXME.  */

static void
add_symbol (struct symbol *s, struct block *b)
{
  int nsyms = BLOCK_NSYMS (b)++;
  struct block *origb;
  struct parse_stack *stackp;

  if (b == top_stack->cur_block &&
      nsyms >= top_stack->maxsyms)
    {
      complain (&block_overflow_complaint, SYMBOL_NAME (s));
      /* In this case shrink_block is actually grow_block, since
         BLOCK_NSYMS(b) is larger than its current size.  */
      origb = b;
      b = shrink_block (top_stack->cur_block, top_stack->cur_st);

      /* Now run through the stack replacing pointers to the
         original block.  shrink_block has already done this
         for the blockvector and BLOCK_FUNCTION.  */
      for (stackp = top_stack; stackp; stackp = stackp->next)
	{
	  if (stackp->cur_block == origb)
	    {
	      stackp->cur_block = b;
	      stackp->maxsyms = BLOCK_NSYMS (b);
	    }
	}
    }
  BLOCK_SYM (b, nsyms) = s;
}

/* Add a new block B to a symtab S */

static void
add_block (struct block *b, struct symtab *s)
{
  struct blockvector *bv = BLOCKVECTOR (s);

  bv = (struct blockvector *) xrealloc ((void *) bv,
					(sizeof (struct blockvector)
					 + BLOCKVECTOR_NBLOCKS (bv)
					 * sizeof (bv->block)));
  if (bv != BLOCKVECTOR (s))
    BLOCKVECTOR (s) = bv;

  BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b;
}

/* Add a new linenumber entry (LINENO,ADR) to a linevector LT.
   MIPS' linenumber encoding might need more than one byte
   to describe it, LAST is used to detect these continuation lines.

   Combining lines with the same line number seems like a bad idea.
   E.g: There could be a line number entry with the same line number after the
   prologue and GDB should not ignore it (this is a better way to find
   a prologue than mips_skip_prologue).
   But due to the compressed line table format there are line number entries
   for the same line which are needed to bridge the gap to the next
   line number entry. These entries have a bogus address info with them
   and we are unable to tell them from intended duplicate line number
   entries.
   This is another reason why -ggdb debugging format is preferable.  */

static int
add_line (struct linetable *lt, int lineno, CORE_ADDR adr, int last)
{
  /* DEC c89 sometimes produces zero linenos which confuse gdb.
     Change them to something sensible. */
  if (lineno == 0)
    lineno = 1;
  if (last == 0)
    last = -2;			/* make sure we record first line */

  if (last == lineno)		/* skip continuation lines */
    return lineno;

  lt->item[lt->nitems].line = lineno;
  lt->item[lt->nitems++].pc = adr << 2;
  return lineno;
}

/* Sorting and reordering procedures */

/* Blocks with a smaller low bound should come first */

static int
compare_blocks (const void *arg1, const void *arg2)
{
  register int addr_diff;
  struct block **b1 = (struct block **) arg1;
  struct block **b2 = (struct block **) arg2;

  addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2)));
  if (addr_diff == 0)
    return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1)));
  return addr_diff;
}

/* Sort the blocks of a symtab S.
   Reorder the blocks in the blockvector by code-address,
   as required by some MI search routines */

static void
sort_blocks (struct symtab *s)
{
  struct blockvector *bv = BLOCKVECTOR (s);

  if (BLOCKVECTOR_NBLOCKS (bv) <= 2)
    {
      /* Cosmetic */
      if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0)
	BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0;
      if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0)
	BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0;
      return;
    }
  /*
   * This is very unfortunate: normally all functions are compiled in
   * the order they are found, but if the file is compiled -O3 things
   * are very different.  It would be nice to find a reliable test
   * to detect -O3 images in advance.
   */
  if (BLOCKVECTOR_NBLOCKS (bv) > 3)
    qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK),
	   BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK,
	   sizeof (struct block *),
	   compare_blocks);

  {
    register CORE_ADDR high = 0;
    register int i, j = BLOCKVECTOR_NBLOCKS (bv);

    for (i = FIRST_LOCAL_BLOCK; i < j; i++)
      if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)))
	high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i));
    BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high;
  }

  BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) =
    BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK));

  BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) =
    BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
  BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) =
    BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
}


/* Constructor/restructor/destructor procedures */

/* Allocate a new symtab for NAME.  Needs an estimate of how many symbols
   MAXSYMS and linenumbers MAXLINES we'll put in it */

static struct symtab *
new_symtab (char *name, int maxsyms, int maxlines, struct objfile *objfile)
{
  struct symtab *s = allocate_symtab (name, objfile);

  LINETABLE (s) = new_linetable (maxlines);

  /* All symtabs must have at least two blocks */
  BLOCKVECTOR (s) = new_bvect (2);
  BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK) = new_block (maxsyms);
  BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) = new_block (maxsyms);
  BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)) =
    BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);

  s->free_code = free_linetable;
  s->debugformat = obsavestring ("ECOFF", 5,
				 &objfile->symbol_obstack);
  return (s);
}

/* Allocate a new partial_symtab NAME */

static struct partial_symtab *
new_psymtab (char *name, struct objfile *objfile)
{
  struct partial_symtab *psymtab;

  psymtab = allocate_psymtab (name, objfile);
  psymtab->section_offsets = objfile->section_offsets;

  /* Keep a backpointer to the file's symbols */

  psymtab->read_symtab_private = ((char *)
				  obstack_alloc (&objfile->psymbol_obstack,
						 sizeof (struct symloc)));
  memset (psymtab->read_symtab_private, 0, sizeof (struct symloc));
  CUR_BFD (psymtab) = cur_bfd;
  DEBUG_SWAP (psymtab) = debug_swap;
  DEBUG_INFO (psymtab) = debug_info;
  PENDING_LIST (psymtab) = pending_list;

  /* The way to turn this into a symtab is to call... */
  psymtab->read_symtab = mdebug_psymtab_to_symtab;
  return (psymtab);
}


/* Allocate a linetable array of the given SIZE.  Since the struct
   already includes one item, we subtract one when calculating the
   proper size to allocate.  */

static struct linetable *
new_linetable (int size)
{
  struct linetable *l;

  size = (size - 1) * sizeof (l->item) + sizeof (struct linetable);
  l = (struct linetable *) xmalloc (size);
  l->nitems = 0;
  return l;
}

/* Oops, too big. Shrink it.  This was important with the 2.4 linetables,
   I am not so sure about the 3.4 ones.

   Since the struct linetable already includes one item, we subtract one when
   calculating the proper size to allocate.  */

static struct linetable *
shrink_linetable (struct linetable *lt)
{

  return (struct linetable *) xrealloc ((void *) lt,
					(sizeof (struct linetable)
					 + ((lt->nitems - 1)
					    * sizeof (lt->item))));
}

/* Allocate and zero a new blockvector of NBLOCKS blocks. */

static struct blockvector *
new_bvect (int nblocks)
{
  struct blockvector *bv;
  int size;

  size = sizeof (struct blockvector) + nblocks * sizeof (struct block *);
  bv = (struct blockvector *) xzalloc (size);

  BLOCKVECTOR_NBLOCKS (bv) = nblocks;

  return bv;
}

/* Allocate and zero a new block of MAXSYMS symbols */

static struct block *
new_block (int maxsyms)
{
  int size = sizeof (struct block) + (maxsyms - 1) * sizeof (struct symbol *);

  return (struct block *) xzalloc (size);
}

/* Ooops, too big. Shrink block B in symtab S to its minimal size.
   Shrink_block can also be used by add_symbol to grow a block.  */

static struct block *
shrink_block (struct block *b, struct symtab *s)
{
  struct block *new;
  struct blockvector *bv = BLOCKVECTOR (s);
  int i;

  /* Just reallocate it and fix references to the old one */

  new = (struct block *) xrealloc ((void *) b,
				   (sizeof (struct block)
				    + ((BLOCK_NSYMS (b) - 1)
				       * sizeof (struct symbol *))));

  /* Should chase pointers to old one.  Fortunately, that`s just
     the block`s function and inferior blocks */
  if (BLOCK_FUNCTION (new) && SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) == b)
    SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) = new;
  for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++)
    if (BLOCKVECTOR_BLOCK (bv, i) == b)
      BLOCKVECTOR_BLOCK (bv, i) = new;
    else if (BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) == b)
      BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) = new;
  return new;
}

/* Create a new symbol with printname NAME */

static struct symbol *
new_symbol (char *name)
{
  struct symbol *s = ((struct symbol *)
		      obstack_alloc (&current_objfile->symbol_obstack,
				     sizeof (struct symbol)));

  memset (s, 0, sizeof (*s));
  SYMBOL_NAME (s) = obsavestring (name, strlen (name),
				  &current_objfile->symbol_obstack);
  SYMBOL_LANGUAGE (s) = psymtab_language;
  SYMBOL_INIT_DEMANGLED_NAME (s, &current_objfile->symbol_obstack);
  return s;
}

/* Create a new type with printname NAME */

static struct type *
new_type (char *name)
{
  struct type *t;

  t = alloc_type (current_objfile);
  TYPE_NAME (t) = name;
  TYPE_CPLUS_SPECIFIC (t) = (struct cplus_struct_type *) &cplus_struct_default;
  return t;
}

/* Read ECOFF debugging information from a BFD section.  This is
   called from elfread.c.  It parses the section into a
   ecoff_debug_info struct, and then lets the rest of the file handle
   it as normal.  */

void
elfmdebug_build_psymtabs (struct objfile *objfile,
			  const struct ecoff_debug_swap *swap, asection *sec)
{
  bfd *abfd = objfile->obfd;
  struct ecoff_debug_info *info;

  info = ((struct ecoff_debug_info *)
	  obstack_alloc (&objfile->psymbol_obstack,
			 sizeof (struct ecoff_debug_info)));

  if (!(*swap->read_debug_info) (abfd, sec, info))
    error ("Error reading ECOFF debugging information: %s",
	   bfd_errmsg (bfd_get_error ()));

  mdebug_build_psymtabs (objfile, swap, info);
}


/* Things used for calling functions in the inferior.
   These functions are exported to our companion
   mips-tdep.c file and are here because they play
   with the symbol-table explicitly. */

/* Sigtramp: make sure we have all the necessary information
   about the signal trampoline code. Since the official code
   from MIPS does not do so, we make up that information ourselves.
   If they fix the library (unlikely) this code will neutralize itself. */

/* FIXME: This function is called only by mips-tdep.c.  It needs to be
   here because it calls functions defined in this file, but perhaps
   this could be handled in a better way.  Only compile it in when
   tm-mips.h is included. */

#ifdef TM_MIPS_H

void
fixup_sigtramp (void)
{
  struct symbol *s;
  struct symtab *st;
  struct block *b, *b0 = NULL;

  sigtramp_address = -1;

  /* We have to handle the following cases here:
     a) The Mips library has a sigtramp label within sigvec.
     b) Irix has a _sigtramp which we want to use, but it also has sigvec.  */
  s = lookup_symbol ("sigvec", 0, VAR_NAMESPACE, 0, NULL);
  if (s != 0)
    {
      b0 = SYMBOL_BLOCK_VALUE (s);
      s = lookup_symbol ("sigtramp", b0, VAR_NAMESPACE, 0, NULL);
    }
  if (s == 0)
    {
      /* No sigvec or no sigtramp inside sigvec, try _sigtramp.  */
      s = lookup_symbol ("_sigtramp", 0, VAR_NAMESPACE, 0, NULL);
    }

  /* But maybe this program uses its own version of sigvec */
  if (s == 0)
    return;

  /* Did we or MIPSco fix the library ? */
  if (SYMBOL_CLASS (s) == LOC_BLOCK)
    {
      sigtramp_address = BLOCK_START (SYMBOL_BLOCK_VALUE (s));
      sigtramp_end = BLOCK_END (SYMBOL_BLOCK_VALUE (s));
      return;
    }

  sigtramp_address = SYMBOL_VALUE (s);
  sigtramp_end = sigtramp_address + 0x88;	/* black magic */

  /* But what symtab does it live in ? */
  st = find_pc_symtab (SYMBOL_VALUE (s));

  /*
   * Ok, there goes the fix: turn it into a procedure, with all the
   * needed info.  Note we make it a nested procedure of sigvec,
   * which is the way the (assembly) code is actually written.
   */
  SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
  SYMBOL_CLASS (s) = LOC_BLOCK;
  SYMBOL_TYPE (s) = init_type (TYPE_CODE_FUNC, 4, 0, (char *) NULL,
			       st->objfile);
  TYPE_TARGET_TYPE (SYMBOL_TYPE (s)) = mdebug_type_void;

  /* Need a block to allocate MIPS_EFI_SYMBOL_NAME in */
  b = new_block (1);
  SYMBOL_BLOCK_VALUE (s) = b;
  BLOCK_START (b) = sigtramp_address;
  BLOCK_END (b) = sigtramp_end;
  BLOCK_FUNCTION (b) = s;
  BLOCK_SUPERBLOCK (b) = BLOCK_SUPERBLOCK (b0);
  add_block (b, st);
  sort_blocks (st);

  /* Make a MIPS_EFI_SYMBOL_NAME entry for it */
  {
    struct mips_extra_func_info *e =
    ((struct mips_extra_func_info *)
     xzalloc (sizeof (struct mips_extra_func_info)));

    e->numargs = 0;		/* the kernel thinks otherwise */
    e->pdr.frameoffset = 32;
    e->pdr.framereg = SP_REGNUM;
    /* Note that setting pcreg is no longer strictly necessary as
       mips_frame_saved_pc is now aware of signal handler frames.  */
    e->pdr.pcreg = PC_REGNUM;
    e->pdr.regmask = -2;
    /* Offset to saved r31, in the sigtramp case the saved registers
       are above the frame in the sigcontext.
       We have 4 alignment bytes, 12 bytes for onstack, mask and pc,
       32 * 4 bytes for the general registers, 12 bytes for mdhi, mdlo, ownedfp
       and 32 * 4 bytes for the floating point registers.  */
    e->pdr.regoffset = 4 + 12 + 31 * 4;
    e->pdr.fregmask = -1;
    /* Offset to saved f30 (first saved *double* register).  */
    e->pdr.fregoffset = 4 + 12 + 32 * 4 + 12 + 30 * 4;
    e->pdr.isym = (long) s;
    e->pdr.adr = sigtramp_address;

    current_objfile = st->objfile;	/* Keep new_symbol happy */
    s = new_symbol (MIPS_EFI_SYMBOL_NAME);
    SYMBOL_VALUE (s) = (long) e;
    SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE;
    SYMBOL_CLASS (s) = LOC_CONST;
    SYMBOL_TYPE (s) = mdebug_type_void;
    current_objfile = NULL;
  }

  BLOCK_SYM (b, BLOCK_NSYMS (b)++) = s;
}

#endif /* TM_MIPS_H */

void
_initialize_mdebugread (void)
{
  mdebug_type_void =
    init_type (TYPE_CODE_VOID, 1,
	       0,
	       "void", (struct objfile *) NULL);
  mdebug_type_char =
    init_type (TYPE_CODE_INT, 1,
	       0,
	       "char", (struct objfile *) NULL);
  mdebug_type_unsigned_char =
    init_type (TYPE_CODE_INT, 1,
	       TYPE_FLAG_UNSIGNED,
	       "unsigned char", (struct objfile *) NULL);
  mdebug_type_short =
    init_type (TYPE_CODE_INT, 2,
	       0,
	       "short", (struct objfile *) NULL);
  mdebug_type_unsigned_short =
    init_type (TYPE_CODE_INT, 2,
	       TYPE_FLAG_UNSIGNED,
	       "unsigned short", (struct objfile *) NULL);
  mdebug_type_int_32 =
    init_type (TYPE_CODE_INT, 4,
	       0,
	       "int", (struct objfile *) NULL);
  mdebug_type_unsigned_int_32 =
    init_type (TYPE_CODE_INT, 4,
	       TYPE_FLAG_UNSIGNED,
	       "unsigned int", (struct objfile *) NULL);
  mdebug_type_int_64 =
    init_type (TYPE_CODE_INT, 8,
	       0,
	       "int", (struct objfile *) NULL);
  mdebug_type_unsigned_int_64 =
    init_type (TYPE_CODE_INT, 8,
	       TYPE_FLAG_UNSIGNED,
	       "unsigned int", (struct objfile *) NULL);
  mdebug_type_long_32 =
    init_type (TYPE_CODE_INT, 4,
	       0,
	       "long", (struct objfile *) NULL);
  mdebug_type_unsigned_long_32 =
    init_type (TYPE_CODE_INT, 4,
	       TYPE_FLAG_UNSIGNED,
	       "unsigned long", (struct objfile *) NULL);
  mdebug_type_long_64 =
    init_type (TYPE_CODE_INT, 8,
	       0,
	       "long", (struct objfile *) NULL);
  mdebug_type_unsigned_long_64 =
    init_type (TYPE_CODE_INT, 8,
	       TYPE_FLAG_UNSIGNED,
	       "unsigned long", (struct objfile *) NULL);
  mdebug_type_long_long_64 =
    init_type (TYPE_CODE_INT, 8,
	       0,
	       "long long", (struct objfile *) NULL);
  mdebug_type_unsigned_long_long_64 =
    init_type (TYPE_CODE_INT, 8,
	       TYPE_FLAG_UNSIGNED,
	       "unsigned long long", (struct objfile *) NULL);
  mdebug_type_adr_32 =
    init_type (TYPE_CODE_PTR, 4,
	       TYPE_FLAG_UNSIGNED,
	       "adr_32", (struct objfile *) NULL);
  TYPE_TARGET_TYPE (mdebug_type_adr_32) = mdebug_type_void;
  mdebug_type_adr_64 =
    init_type (TYPE_CODE_PTR, 8,
	       TYPE_FLAG_UNSIGNED,
	       "adr_64", (struct objfile *) NULL);
  TYPE_TARGET_TYPE (mdebug_type_adr_64) = mdebug_type_void;
  mdebug_type_float =
    init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
	       0,
	       "float", (struct objfile *) NULL);
  mdebug_type_double =
    init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
	       0,
	       "double", (struct objfile *) NULL);
  mdebug_type_complex =
    init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
	       0,
	       "complex", (struct objfile *) NULL);
  TYPE_TARGET_TYPE (mdebug_type_complex) = mdebug_type_float;
  mdebug_type_double_complex =
    init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
	       0,
	       "double complex", (struct objfile *) NULL);
  TYPE_TARGET_TYPE (mdebug_type_double_complex) = mdebug_type_double;

  /* Is a "string" the way btString means it the same as TYPE_CODE_STRING?
     FIXME.  */
  mdebug_type_string =
    init_type (TYPE_CODE_STRING,
	       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
	       0, "string",
	       (struct objfile *) NULL);

  /* We use TYPE_CODE_INT to print these as integers.  Does this do any
     good?  Would we be better off with TYPE_CODE_ERROR?  Should
     TYPE_CODE_ERROR print things in hex if it knows the size?  */
  mdebug_type_fixed_dec =
    init_type (TYPE_CODE_INT,
	       TARGET_INT_BIT / TARGET_CHAR_BIT,
	       0, "fixed decimal",
	       (struct objfile *) NULL);

  mdebug_type_float_dec =
    init_type (TYPE_CODE_ERROR,
	       TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
	       0, "floating decimal",
	       (struct objfile *) NULL);

  nodebug_func_symbol_type = init_type (TYPE_CODE_FUNC, 1, 0,
					"<function, no debug info>", NULL);
  TYPE_TARGET_TYPE (nodebug_func_symbol_type) = mdebug_type_int;
  nodebug_var_symbol_type =
    init_type (TYPE_CODE_INT, TARGET_INT_BIT / HOST_CHAR_BIT, 0,
	       "<variable, no debug info>", NULL);
}