summaryrefslogtreecommitdiff
path: root/gcc/dbxout.c
blob: 60ca66479f28b99c166ee1ce47c23de2f53d2f0f (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
/* Output dbx-format symbol table information from GNU compiler.
   Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   1999, 2000, 2001, 2002 Free Software Foundation, Inc.

This file is part of GCC.

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

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


/* Output dbx-format symbol table data.
   This consists of many symbol table entries, each of them
   a .stabs assembler pseudo-op with four operands:
   a "name" which is really a description of one symbol and its type,
   a "code", which is a symbol defined in stab.h whose name starts with N_,
   an unused operand always 0,
   and a "value" which is an address or an offset.
   The name is enclosed in doublequote characters.

   Each function, variable, typedef, and structure tag
   has a symbol table entry to define it.
   The beginning and end of each level of name scoping within
   a function are also marked by special symbol table entries.

   The "name" consists of the symbol name, a colon, a kind-of-symbol letter,
   and a data type number.  The data type number may be followed by
   "=" and a type definition; normally this will happen the first time
   the type number is mentioned.  The type definition may refer to
   other types by number, and those type numbers may be followed
   by "=" and nested definitions.

   This can make the "name" quite long.
   When a name is more than 80 characters, we split the .stabs pseudo-op
   into two .stabs pseudo-ops, both sharing the same "code" and "value".
   The first one is marked as continued with a double-backslash at the
   end of its "name".

   The kind-of-symbol letter distinguished function names from global
   variables from file-scope variables from parameters from auto
   variables in memory from typedef names from register variables.
   See `dbxout_symbol'.

   The "code" is mostly redundant with the kind-of-symbol letter
   that goes in the "name", but not entirely: for symbols located
   in static storage, the "code" says which segment the address is in,
   which controls how it is relocated.

   The "value" for a symbol in static storage
   is the core address of the symbol (actually, the assembler
   label for the symbol).  For a symbol located in a stack slot
   it is the stack offset; for one in a register, the register number.
   For a typedef symbol, it is zero.

   If DEBUG_SYMS_TEXT is defined, all debugging symbols must be
   output while in the text section.

   For more on data type definitions, see `dbxout_type'.  */

#include "config.h"
#include "system.h"

#include "tree.h"
#include "rtl.h"
#include "flags.h"
#include "regs.h"
#include "insn-config.h"
#include "reload.h"
#include "output.h" /* ASM_OUTPUT_SOURCE_LINE may refer to sdb functions.  */
#include "dbxout.h"
#include "toplev.h"
#include "tm_p.h"
#include "ggc.h"
#include "debug.h"
#include "function.h"
#include "target.h"
#include "langhooks.h"

#ifdef XCOFF_DEBUGGING_INFO
#include "xcoffout.h"
#endif

#ifndef ASM_STABS_OP
#define ASM_STABS_OP "\t.stabs\t"
#endif

#ifndef ASM_STABN_OP
#define ASM_STABN_OP "\t.stabn\t"
#endif

#ifndef DBX_TYPE_DECL_STABS_CODE
#define DBX_TYPE_DECL_STABS_CODE N_LSYM
#endif

#ifndef DBX_STATIC_CONST_VAR_CODE
#define DBX_STATIC_CONST_VAR_CODE N_FUN
#endif

#ifndef DBX_REGPARM_STABS_CODE
#define DBX_REGPARM_STABS_CODE N_RSYM
#endif

#ifndef DBX_REGPARM_STABS_LETTER
#define DBX_REGPARM_STABS_LETTER 'P'
#endif

/* This is used for parameters passed by invisible reference in a register.  */
#ifndef GDB_INV_REF_REGPARM_STABS_LETTER
#define GDB_INV_REF_REGPARM_STABS_LETTER 'a'
#endif

#ifndef DBX_MEMPARM_STABS_LETTER
#define DBX_MEMPARM_STABS_LETTER 'p'
#endif

#ifndef FILE_NAME_JOINER
#define FILE_NAME_JOINER "/"
#endif

/* GDB needs to know that the stabs were generated by GCC.  We emit an
   N_OPT stab at the beginning of the source file to indicate this.
   The string is historical, and different on a very few targets.  */
#ifndef STABS_GCC_MARKER
#define STABS_GCC_MARKER "gcc2_compiled."
#endif

/* Typical USG systems don't have stab.h, and they also have
   no use for DBX-format debugging info.  */

#if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)

/* Nonzero if we have actually used any of the GDB extensions
   to the debugging format.  The idea is that we use them for the
   first time only if there's a strong reason, but once we have done that,
   we use them whenever convenient.  */

static int have_used_extensions = 0;

/* Number for the next N_SOL filename stabs label.  The number 0 is reserved
   for the N_SO filename stabs label.  */

#if defined (DBX_DEBUGGING_INFO) && !defined (DBX_OUTPUT_SOURCE_FILENAME)
static int source_label_number = 1;
#endif

#ifdef DEBUG_SYMS_TEXT
#define FORCE_TEXT function_section (current_function_decl);
#else
#define FORCE_TEXT
#endif

#include "gstab.h"

#define STAB_CODE_TYPE enum __stab_debug_code

/* 1 if PARM is passed to this function in memory.  */

#define PARM_PASSED_IN_MEMORY(PARM) \
 (GET_CODE (DECL_INCOMING_RTL (PARM)) == MEM)

/* A C expression for the integer offset value of an automatic variable
   (N_LSYM) having address X (an RTX).  */
#ifndef DEBUGGER_AUTO_OFFSET
#define DEBUGGER_AUTO_OFFSET(X) \
  (GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0)
#endif

/* A C expression for the integer offset value of an argument (N_PSYM)
   having address X (an RTX).  The nominal offset is OFFSET.  */
#ifndef DEBUGGER_ARG_OFFSET
#define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET)
#endif

/* Stream for writing to assembler file.  */

static FILE *asmfile;

/* Last source file name mentioned in a NOTE insn.  */

static const char *lastfile;

/* Current working directory.  */

static const char *cwd;

enum typestatus {TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED};

/* Structure recording information about a C data type.
   The status element says whether we have yet output
   the definition of the type.  TYPE_XREF says we have
   output it as a cross-reference only.
   The file_number and type_number elements are used if DBX_USE_BINCL
   is defined.  */

struct typeinfo
{
  enum typestatus status;
#ifdef DBX_USE_BINCL
  int file_number;
  int type_number;
#endif
};

/* Vector recording information about C data types.
   When we first notice a data type (a tree node),
   we assign it a number using next_type_number.
   That is its index in this vector.  */

struct typeinfo *typevec;

/* Number of elements of space allocated in `typevec'.  */

static int typevec_len;

/* In dbx output, each type gets a unique number.
   This is the number for the next type output.
   The number, once assigned, is in the TYPE_SYMTAB_ADDRESS field.  */

static int next_type_number;

#ifdef DBX_USE_BINCL

/* When using N_BINCL in dbx output, each type number is actually a
   pair of the file number and the type number within the file.
   This is a stack of input files.  */

struct dbx_file
{
  struct dbx_file *next;
  int file_number;
  int next_type_number;
};

/* This is the top of the stack.  */

static struct dbx_file *current_file;

/* This is the next file number to use.  */

static int next_file_number;

#endif /* DBX_USE_BINCL */

/* These variables are for dbxout_symbol to communicate to
   dbxout_finish_symbol.
   current_sym_code is the symbol-type-code, a symbol N_... define in stab.h.
   current_sym_value and current_sym_addr are two ways to address the
   value to store in the symtab entry.
   current_sym_addr if nonzero represents the value as an rtx.
   If that is zero, current_sym_value is used.  This is used
   when the value is an offset (such as for auto variables,
   register variables and parms).  */

static STAB_CODE_TYPE current_sym_code;
static int current_sym_value;
static rtx current_sym_addr;

/* Number of chars of symbol-description generated so far for the
   current symbol.  Used by CHARS and CONTIN.  */

static int current_sym_nchars;

/* Report having output N chars of the current symbol-description.  */

#define CHARS(N) (current_sym_nchars += (N))

/* Break the current symbol-description, generating a continuation,
   if it has become long.  */

#ifndef DBX_CONTIN_LENGTH
#define DBX_CONTIN_LENGTH 80
#endif

#if DBX_CONTIN_LENGTH > 0
#define CONTIN  \
  do {if (current_sym_nchars > DBX_CONTIN_LENGTH) dbxout_continue ();} while (0)
#else
#define CONTIN do { } while (0)
#endif

static void dbxout_init			PARAMS ((const char *));
static void dbxout_finish		PARAMS ((const char *));
static void dbxout_start_source_file	PARAMS ((unsigned, const char *));
static void dbxout_end_source_file	PARAMS ((unsigned));
static void dbxout_typedefs		PARAMS ((tree));
static void dbxout_fptype_value		PARAMS ((tree));
static void dbxout_type_index		PARAMS ((tree));
#if DBX_CONTIN_LENGTH > 0
static void dbxout_continue		PARAMS ((void));
#endif
static void dbxout_args			PARAMS ((tree));
static void dbxout_type_fields		PARAMS ((tree));
static void dbxout_type_method_1	PARAMS ((tree, const char *));
static void dbxout_type_methods		PARAMS ((tree));
static void dbxout_range_type		PARAMS ((tree));
static void dbxout_type			PARAMS ((tree, int));
static void print_int_cst_octal		PARAMS ((tree));
static void print_octal			PARAMS ((unsigned HOST_WIDE_INT, int));
static void print_wide_int		PARAMS ((HOST_WIDE_INT));
static void dbxout_type_name		PARAMS ((tree));
static void dbxout_class_name_qualifiers PARAMS ((tree));
static int dbxout_symbol_location	PARAMS ((tree, tree, const char *, rtx));
static void dbxout_symbol_name		PARAMS ((tree, const char *, int));
static void dbxout_prepare_symbol	PARAMS ((tree));
static void dbxout_finish_symbol	PARAMS ((tree));
static void dbxout_block		PARAMS ((tree, int, tree));
static void dbxout_global_decl		PARAMS ((tree));

/* The debug hooks structure.  */
#if defined (DBX_DEBUGGING_INFO)

static void dbxout_source_line		PARAMS ((unsigned int, const char *));
static void dbxout_source_file		PARAMS ((FILE *, const char *));
static void dbxout_function_end		PARAMS ((void));
static void dbxout_begin_function	PARAMS ((tree));
static void dbxout_begin_block		PARAMS ((unsigned, unsigned));
static void dbxout_end_block		PARAMS ((unsigned, unsigned));
static void dbxout_function_decl	PARAMS ((tree));

const struct gcc_debug_hooks dbx_debug_hooks =
{
  dbxout_init,
  dbxout_finish,
  debug_nothing_int_charstar,
  debug_nothing_int_charstar,
  dbxout_start_source_file,
  dbxout_end_source_file,
  dbxout_begin_block,
  dbxout_end_block,
  debug_true_tree,		/* ignore_block */
  dbxout_source_line,		/* source_line */
  dbxout_source_line,		/* begin_prologue: just output line info */
  debug_nothing_int_charstar,	/* end_prologue */
  debug_nothing_int_charstar,	/* end_epilogue */
#ifdef DBX_FUNCTION_FIRST
  dbxout_begin_function,
#else
  debug_nothing_tree,		/* begin_function */
#endif
  debug_nothing_int,		/* end_function */
  dbxout_function_decl,
  dbxout_global_decl,		/* global_decl */
  debug_nothing_tree,		/* deferred_inline_function */
  debug_nothing_tree,		/* outlining_inline_function */
  debug_nothing_rtx		/* label */
};
#endif /* DBX_DEBUGGING_INFO  */

#if defined (XCOFF_DEBUGGING_INFO)
const struct gcc_debug_hooks xcoff_debug_hooks =
{
  dbxout_init,
  dbxout_finish,
  debug_nothing_int_charstar,
  debug_nothing_int_charstar,
  dbxout_start_source_file,
  dbxout_end_source_file,
  xcoffout_begin_block,
  xcoffout_end_block,
  debug_true_tree,		/* ignore_block */
  xcoffout_source_line,
  xcoffout_begin_prologue,	/* begin_prologue */
  debug_nothing_int_charstar,	/* end_prologue */
  xcoffout_end_epilogue,
  debug_nothing_tree,		/* begin_function */
  xcoffout_end_function,
  debug_nothing_tree,		/* function_decl */
  dbxout_global_decl,		/* global_decl */
  debug_nothing_tree,		/* deferred_inline_function */
  debug_nothing_tree,		/* outlining_inline_function */
  debug_nothing_rtx		/* label */
};
#endif /* XCOFF_DEBUGGING_INFO  */

#if defined (DBX_DEBUGGING_INFO)
static void
dbxout_function_end ()
{
  static int scope_labelno = 0;
  char lscope_label_name[100];
  /* Convert Ltext into the appropriate format for local labels in case
     the system doesn't insert underscores in front of user generated
     labels.  */
  ASM_GENERATE_INTERNAL_LABEL (lscope_label_name, "Lscope", scope_labelno);
  ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Lscope", scope_labelno);
  scope_labelno++;

  /* By convention, GCC will mark the end of a function with an N_FUN
     symbol and an empty string.  */
#ifdef DBX_OUTPUT_NFUN
  DBX_OUTPUT_NFUN (asmfile, lscope_label_name, current_function_decl);
#else
  fprintf (asmfile, "%s\"\",%d,0,0,", ASM_STABS_OP, N_FUN);
  assemble_name (asmfile, lscope_label_name);
  putc ('-', asmfile);
  assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
  fprintf (asmfile, "\n");
#endif
}
#endif /* DBX_DEBUGGING_INFO */

/* At the beginning of compilation, start writing the symbol table.
   Initialize `typevec' and output the standard data types of C.  */

static void
dbxout_init (input_file_name)
     const char *input_file_name;
{
  char ltext_label_name[100];
  tree syms = (*lang_hooks.decls.getdecls) ();

  asmfile = asm_out_file;

  typevec_len = 100;
  typevec = (struct typeinfo *) xcalloc (typevec_len, sizeof typevec[0]);

  /* Convert Ltext into the appropriate format for local labels in case
     the system doesn't insert underscores in front of user generated
     labels.  */
  ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0);

  /* Put the current working directory in an N_SO symbol.  */
#ifndef DBX_WORKING_DIRECTORY /* Only some versions of DBX want this,
				 but GDB always does.  */
  if (use_gnu_debug_info_extensions)
#endif
    {
      if (!cwd && (cwd = getpwd ()) && (!*cwd || cwd[strlen (cwd) - 1] != '/'))
	cwd = concat (cwd, FILE_NAME_JOINER, NULL);
      if (cwd)
	{
#ifdef DBX_OUTPUT_MAIN_SOURCE_DIRECTORY
	  DBX_OUTPUT_MAIN_SOURCE_DIRECTORY (asmfile, cwd);
#else /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
	  fprintf (asmfile, "%s", ASM_STABS_OP);
	  output_quoted_string (asmfile, cwd);
	  fprintf (asmfile, ",%d,0,0,", N_SO);
	  assemble_name (asmfile, ltext_label_name);
	  fputc ('\n', asmfile);
#endif /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
	}
    }

#ifdef DBX_OUTPUT_MAIN_SOURCE_FILENAME
  /* This should NOT be DBX_OUTPUT_SOURCE_FILENAME. That
     would give us an N_SOL, and we want an N_SO.  */
  DBX_OUTPUT_MAIN_SOURCE_FILENAME (asmfile, input_file_name);
#else /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
  /* We include outputting `Ltext:' here,
     because that gives you a way to override it.  */
  /* Used to put `Ltext:' before the reference, but that loses on sun 4.  */
  fprintf (asmfile, "%s", ASM_STABS_OP);
  output_quoted_string (asmfile, input_file_name);
  fprintf (asmfile, ",%d,0,0,", N_SO);
  assemble_name (asmfile, ltext_label_name);
  fputc ('\n', asmfile);
  text_section ();
  ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Ltext", 0);
#endif /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */

#ifdef DBX_OUTPUT_GCC_MARKER
  DBX_OUTPUT_GCC_MARKER (asmfile);
#else
  /* Emit an N_OPT stab to indicate that this file was compiled by GCC.  */
  fprintf (asmfile, "%s\"%s\",%d,0,0,0\n",
	   ASM_STABS_OP, STABS_GCC_MARKER, N_OPT);
#endif

  lastfile = input_file_name;

  next_type_number = 1;

#ifdef DBX_USE_BINCL
  current_file = (struct dbx_file *) xmalloc (sizeof *current_file);
  current_file->next = NULL;
  current_file->file_number = 0;
  current_file->next_type_number = 1;
  next_file_number = 1;
#endif

  /* Make sure that types `int' and `char' have numbers 1 and 2.
     Definitions of other integer types will refer to those numbers.
     (Actually it should no longer matter what their numbers are.
     Also, if any types with tags have been defined, dbxout_symbol
     will output them first, so the numbers won't be 1 and 2.  That
     happens in C++.  So it's a good thing it should no longer matter).  */

#ifdef DBX_OUTPUT_STANDARD_TYPES
  DBX_OUTPUT_STANDARD_TYPES (syms);
#else
  dbxout_symbol (TYPE_NAME (integer_type_node), 0);
  dbxout_symbol (TYPE_NAME (char_type_node), 0);
#endif

  /* Get all permanent types that have typedef names,
     and output them all, except for those already output.  */

  dbxout_typedefs (syms);
}

/* Output any typedef names for types described by TYPE_DECLs in SYMS,
   in the reverse order from that which is found in SYMS.  */

static void
dbxout_typedefs (syms)
     tree syms;
{
  if (syms)
    {
      dbxout_typedefs (TREE_CHAIN (syms));
      if (TREE_CODE (syms) == TYPE_DECL)
	{
	  tree type = TREE_TYPE (syms);
	  if (TYPE_NAME (type)
	      && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
	      && COMPLETE_TYPE_P (type)
	      && ! TREE_ASM_WRITTEN (TYPE_NAME (type)))
	    dbxout_symbol (TYPE_NAME (type), 0);
	}
    }
}

/* Change to reading from a new source file.  Generate a N_BINCL stab.  */

static void
dbxout_start_source_file (line, filename)
     unsigned int line ATTRIBUTE_UNUSED;
     const char *filename ATTRIBUTE_UNUSED;
{
#ifdef DBX_USE_BINCL
  struct dbx_file *n = (struct dbx_file *) xmalloc (sizeof *n);

  n->next = current_file;
  n->file_number = next_file_number++;
  n->next_type_number = 1;
  current_file = n;
  fprintf (asmfile, "%s", ASM_STABS_OP);
  output_quoted_string (asmfile, filename);
  fprintf (asmfile, ",%d,0,0,0\n", N_BINCL);
#endif
}

/* Revert to reading a previous source file.  Generate a N_EINCL stab.  */

static void
dbxout_end_source_file (line)
     unsigned int line ATTRIBUTE_UNUSED;
{
#ifdef DBX_USE_BINCL
  struct dbx_file *next;

  fprintf (asmfile, "%s%d,0,0,0\n", ASM_STABN_OP, N_EINCL);
  next = current_file->next;
  free (current_file);
  current_file = next;
#endif
}

#if defined (DBX_DEBUGGING_INFO)
/* Output debugging info to FILE to switch to sourcefile FILENAME.  */

static void
dbxout_source_file (file, filename)
     FILE *file;
     const char *filename;
{
  if (filename && (lastfile == 0 || strcmp (filename, lastfile)))
    {
#ifdef DBX_OUTPUT_SOURCE_FILENAME
      DBX_OUTPUT_SOURCE_FILENAME (file, filename);
#else
      char ltext_label_name[100];

      ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext",
				   source_label_number);
      fprintf (file, "%s", ASM_STABS_OP);
      output_quoted_string (file, filename);
      fprintf (asmfile, ",%d,0,0,", N_SOL);
      assemble_name (asmfile, ltext_label_name);
      fputc ('\n', asmfile);
      if (current_function_decl != NULL_TREE
	  && DECL_SECTION_NAME (current_function_decl) != NULL_TREE)
	; /* Don't change section amid function.  */
      else
	text_section ();
      ASM_OUTPUT_INTERNAL_LABEL (file, "Ltext", source_label_number);
      source_label_number++;
#endif
      lastfile = filename;
    }
}

/* Output a line number symbol entry for source file FILENAME and line
   number LINENO.  */

static void
dbxout_source_line (lineno, filename)
     unsigned int lineno;
     const char *filename;
{
  dbxout_source_file (asmfile, filename);

#ifdef ASM_OUTPUT_SOURCE_LINE
  ASM_OUTPUT_SOURCE_LINE (asmfile, lineno);
#else
  fprintf (asmfile, "%s%d,0,%d\n", ASM_STABD_OP, N_SLINE, lineno);
#endif
}

/* Describe the beginning of an internal block within a function.  */

static void
dbxout_begin_block (line, n)
     unsigned int line ATTRIBUTE_UNUSED;
     unsigned int n;
{
  ASM_OUTPUT_INTERNAL_LABEL (asmfile, "LBB", n);
}

/* Describe the end line-number of an internal block within a function.  */

static void
dbxout_end_block (line, n)
     unsigned int line ATTRIBUTE_UNUSED;
     unsigned int n;
{
  ASM_OUTPUT_INTERNAL_LABEL (asmfile, "LBE", n);
}

/* Output dbx data for a function definition.
   This includes a definition of the function name itself (a symbol),
   definitions of the parameters (locating them in the parameter list)
   and then output the block that makes up the function's body
   (including all the auto variables of the function).  */

static void
dbxout_function_decl (decl)
     tree decl;
{
#ifndef DBX_FUNCTION_FIRST
  dbxout_begin_function (decl);
#endif
  dbxout_block (DECL_INITIAL (decl), 0, DECL_ARGUMENTS (decl));
#ifdef DBX_OUTPUT_FUNCTION_END
  DBX_OUTPUT_FUNCTION_END (asmfile, decl);
#endif
  if (use_gnu_debug_info_extensions
#if defined(NO_DBX_FUNCTION_END)
      && ! NO_DBX_FUNCTION_END
#endif
      && targetm.have_named_sections)
    dbxout_function_end ();
}

#endif /* DBX_DEBUGGING_INFO  */

/* Debug information for a global DECL.  Called from toplev.c after
   compilation proper has finished.  */
static void
dbxout_global_decl (decl)
     tree decl;
{
  if (TREE_CODE (decl) == VAR_DECL
      && ! DECL_EXTERNAL (decl)
      && DECL_RTL_SET_P (decl))	/* Not necessary?  */
    dbxout_symbol (decl, 0);
}

/* At the end of compilation, finish writing the symbol table.
   Unless you define DBX_OUTPUT_MAIN_SOURCE_FILE_END, the default is
   to do nothing.  */

static void
dbxout_finish (filename)
     const char *filename ATTRIBUTE_UNUSED;
{
#ifdef DBX_OUTPUT_MAIN_SOURCE_FILE_END
  DBX_OUTPUT_MAIN_SOURCE_FILE_END (asmfile, filename);
#endif /* DBX_OUTPUT_MAIN_SOURCE_FILE_END */
}

/* Output floating point type values used by the 'R' stab letter.
   These numbers come from include/aout/stab_gnu.h in binutils/gdb.

   There are only 3 real/complex types defined, and we need 7/6.
   We use NF_SINGLE as a generic float type, and NF_COMPLEX as a generic
   complex type.  Since we have the type size anyways, we don't really need
   to distinguish between different FP types, we only need to distinguish
   between float and complex.  This works fine with gdb.

   We only use this for complex types, to avoid breaking backwards
   compatibility for real types.  complex types aren't in ISO C90, so it is
   OK if old debuggers don't understand the debug info we emit for them.  */

/* ??? These are supposed to be IEEE types, but we don't check for that.
   We could perhaps add additional numbers for non-IEEE types if we need
   them.  */

static void
dbxout_fptype_value (type)
     tree type;
{
  char value = '0';
  enum machine_mode mode = TYPE_MODE (type);

  if (TREE_CODE (type) == REAL_TYPE)
    {
      if (mode == SFmode)
	value = '1';
      else if (mode == DFmode)
	value = '2';
      else if (mode == TFmode || mode == XFmode)
	value = '6';
      else
	/* Use NF_SINGLE as a generic real type for other sizes.  */
	value = '1';
    }
  else if (TREE_CODE (type) == COMPLEX_TYPE)
    {
      if (mode == SCmode)
	value = '3';
      else if (mode == DCmode)
	value = '4';
      else if (mode == TCmode || mode == XCmode)
	value = '5';
      else
	/* Use NF_COMPLEX as a generic complex type for other sizes.  */
	value = '3';
    }
  else
    abort ();

  putc (value, asmfile);
  CHARS (1);
}

/* Output the index of a type.  */

static void
dbxout_type_index (type)
     tree type;
{
#ifndef DBX_USE_BINCL
  fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
  CHARS (3);
#else
  struct typeinfo *t = &typevec[TYPE_SYMTAB_ADDRESS (type)];
  fprintf (asmfile, "(%d,%d)", t->file_number, t->type_number);
  CHARS (9);
#endif
}

#if DBX_CONTIN_LENGTH > 0
/* Continue a symbol-description that gets too big.
   End one symbol table entry with a double-backslash
   and start a new one, eventually producing something like
   .stabs "start......\\",code,0,value
   .stabs "...rest",code,0,value   */

static void
dbxout_continue ()
{
#ifdef DBX_CONTIN_CHAR
  fprintf (asmfile, "%c", DBX_CONTIN_CHAR);
#else
  fprintf (asmfile, "\\\\");
#endif
  dbxout_finish_symbol (NULL_TREE);
  fprintf (asmfile, "%s\"", ASM_STABS_OP);
  current_sym_nchars = 0;
}
#endif /* DBX_CONTIN_LENGTH > 0 */

/* Subroutine of `dbxout_type'.  Output the type fields of TYPE.
   This must be a separate function because anonymous unions require
   recursive calls.  */

static void
dbxout_type_fields (type)
     tree type;
{
  tree tem;

  /* Output the name, type, position (in bits), size (in bits) of each
     field that we can support.  */
  for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
    {
      /* Omit here local type decls until we know how to support them.  */
      if (TREE_CODE (tem) == TYPE_DECL
	  /* Omit fields whose position or size are variable or too large to
	     represent.  */
	  || (TREE_CODE (tem) == FIELD_DECL
	      && (! host_integerp (bit_position (tem), 0)
		  || ! DECL_SIZE (tem)
		  || ! host_integerp (DECL_SIZE (tem), 1)))
	  /* Omit here the nameless fields that are used to skip bits.  */
	   || DECL_IGNORED_P (tem))
	continue;

      else if (TREE_CODE (tem) != CONST_DECL)
	{
	  /* Continue the line if necessary,
	     but not before the first field.  */
	  if (tem != TYPE_FIELDS (type))
	    CONTIN;

	  if (DECL_NAME (tem))
	    {
	      fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (tem)));
	      CHARS (2 + IDENTIFIER_LENGTH (DECL_NAME (tem)));
	    }
	  else
	    {
	      fprintf (asmfile, ":");
	      CHARS (1);
	    }

	  if (use_gnu_debug_info_extensions
	      && (TREE_PRIVATE (tem) || TREE_PROTECTED (tem)
		  || TREE_CODE (tem) != FIELD_DECL))
	    {
	      have_used_extensions = 1;
	      putc ('/', asmfile);
	      putc ((TREE_PRIVATE (tem) ? '0'
		     : TREE_PROTECTED (tem) ? '1' : '2'),
		    asmfile);
	      CHARS (2);
	    }

	  dbxout_type ((TREE_CODE (tem) == FIELD_DECL
			&& DECL_BIT_FIELD_TYPE (tem))
		       ? DECL_BIT_FIELD_TYPE (tem) : TREE_TYPE (tem), 0);

	  if (TREE_CODE (tem) == VAR_DECL)
	    {
	      if (TREE_STATIC (tem) && use_gnu_debug_info_extensions)
		{
		  tree name = DECL_ASSEMBLER_NAME (tem);

		  have_used_extensions = 1;
		  fprintf (asmfile, ":%s;", IDENTIFIER_POINTER (name));
		  CHARS (IDENTIFIER_LENGTH (name) + 2);
		}
	      else
		{
		  /* If TEM is non-static, GDB won't understand it.  */
		  fprintf (asmfile, ",0,0;");
		  CHARS (5);
		}
	    }
	  else
	    {
	      putc (',', asmfile);
	      print_wide_int (int_bit_position (tem));
	      putc (',', asmfile);
	      print_wide_int (tree_low_cst (DECL_SIZE (tem), 1));
	      putc (';', asmfile);
	      CHARS (3);
	    }
	}
    }
}

/* Subroutine of `dbxout_type_methods'.  Output debug info about the
   method described DECL.  DEBUG_NAME is an encoding of the method's
   type signature.  ??? We may be able to do without DEBUG_NAME altogether
   now.  */

static void
dbxout_type_method_1 (decl, debug_name)
     tree decl;
     const char *debug_name;
{
  char c1 = 'A', c2;

  if (TREE_CODE (TREE_TYPE (decl)) == FUNCTION_TYPE)
    c2 = '?';
  else /* it's a METHOD_TYPE.  */
    {
      tree firstarg = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl)));
      /* A for normal functions.
	 B for `const' member functions.
	 C for `volatile' member functions.
	 D for `const volatile' member functions.  */
      if (TYPE_READONLY (TREE_TYPE (firstarg)))
	c1 += 1;
      if (TYPE_VOLATILE (TREE_TYPE (firstarg)))
	c1 += 2;

      if (DECL_VINDEX (decl))
	c2 = '*';
      else
	c2 = '.';
    }

  fprintf (asmfile, ":%s;%c%c%c", debug_name,
	   TREE_PRIVATE (decl) ? '0'
	   : TREE_PROTECTED (decl) ? '1' : '2', c1, c2);
  CHARS (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (decl)) + 6
	 - (debug_name - IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))));

  if (DECL_VINDEX (decl) && host_integerp (DECL_VINDEX (decl), 0))
    {
      print_wide_int (tree_low_cst (DECL_VINDEX (decl), 0));
      putc (';', asmfile);
      CHARS (1);
      dbxout_type (DECL_CONTEXT (decl), 0);
      fprintf (asmfile, ";");
      CHARS (1);
    }
}

/* Subroutine of `dbxout_type'.  Output debug info about the methods defined
   in TYPE.  */

static void
dbxout_type_methods (type)
     tree type;
{
  /* C++: put out the method names and their parameter lists */
  tree methods = TYPE_METHODS (type);
  tree type_encoding;
  tree fndecl;
  tree last;
  char formatted_type_identifier_length[16];
  int type_identifier_length;

  if (methods == NULL_TREE)
    return;

  type_encoding = DECL_NAME (TYPE_NAME (type));

#if 0
  /* C++: Template classes break some assumptions made by this code about
     the class names, constructor names, and encodings for assembler
     label names.  For now, disable output of dbx info for them.  */
  {
    const char *ptr = IDENTIFIER_POINTER (type_encoding);
    /* This should use index.  (mrs) */
    while (*ptr && *ptr != '<') ptr++;
    if (*ptr != 0)
      {
	static int warned;
	if (!warned)
	    warned = 1;
	return;
      }
  }
#endif

  type_identifier_length = IDENTIFIER_LENGTH (type_encoding);

  sprintf (formatted_type_identifier_length, "%d", type_identifier_length);

  if (TREE_CODE (methods) != TREE_VEC)
    fndecl = methods;
  else if (TREE_VEC_ELT (methods, 0) != NULL_TREE)
    fndecl = TREE_VEC_ELT (methods, 0);
  else
    fndecl = TREE_VEC_ELT (methods, 1);

  while (fndecl)
    {
      int need_prefix = 1;

      /* Group together all the methods for the same operation.
	 These differ in the types of the arguments.  */
      for (last = NULL_TREE;
	   fndecl && (last == NULL_TREE || DECL_NAME (fndecl) == DECL_NAME (last));
	   fndecl = TREE_CHAIN (fndecl))
	/* Output the name of the field (after overloading), as
	   well as the name of the field before overloading, along
	   with its parameter list */
	{
	  /* This is the "mangled" name of the method.
	     It encodes the argument types.  */
	  const char *debug_name;

	  /* Skip methods that aren't FUNCTION_DECLs.  (In C++, these
	     include TEMPLATE_DECLs.)  The debugger doesn't know what
	     to do with such entities anyhow.  */
	  if (TREE_CODE (fndecl) != FUNCTION_DECL)
	    continue;

	  debug_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl));

	  CONTIN;

	  last = fndecl;

	  /* Also ignore abstract methods; those are only interesting to
	     the DWARF backends.  */
	  if (DECL_IGNORED_P (fndecl) || DECL_ABSTRACT (fndecl))
	    continue;

	  /* Redundantly output the plain name, since that's what gdb
	     expects.  */
	  if (need_prefix)
	    {
	      tree name = DECL_NAME (fndecl);
	      fprintf (asmfile, "%s::", IDENTIFIER_POINTER (name));
	      CHARS (IDENTIFIER_LENGTH (name) + 2);
	      need_prefix = 0;
	    }

	  dbxout_type (TREE_TYPE (fndecl), 0);

	  dbxout_type_method_1 (fndecl, debug_name);
	}
      if (!need_prefix)
	{
	  putc (';', asmfile);
	  CHARS (1);
	}
    }
}

/* Emit a "range" type specification, which has the form:
   "r<index type>;<lower bound>;<upper bound>;".
   TYPE is an INTEGER_TYPE.  */

static void
dbxout_range_type (type)
     tree type;
{
  fprintf (asmfile, "r");
  if (TREE_TYPE (type))
    dbxout_type (TREE_TYPE (type), 0);
  else if (TREE_CODE (type) != INTEGER_TYPE)
    dbxout_type (type, 0); /* E.g. Pascal's ARRAY [BOOLEAN] of INTEGER */
  else
    {
      /* Traditionally, we made sure 'int' was type 1, and builtin types
	 were defined to be sub-ranges of int.  Unfortunately, this
	 does not allow us to distinguish true sub-ranges from integer
	 types.  So, instead we define integer (non-sub-range) types as
	 sub-ranges of themselves.  This matters for Chill.  If this isn't
	 a subrange type, then we want to define it in terms of itself.
	 However, in C, this may be an anonymous integer type, and we don't
	 want to emit debug info referring to it.  Just calling
	 dbxout_type_index won't work anyways, because the type hasn't been
	 defined yet.  We make this work for both cases by checked to see
	 whether this is a defined type, referring to it if it is, and using
	 'int' otherwise.  */
      if (TYPE_SYMTAB_ADDRESS (type) != 0)
	dbxout_type_index (type);
      else
	dbxout_type_index (integer_type_node);
    }

  if (TYPE_MIN_VALUE (type) != 0
      && host_integerp (TYPE_MIN_VALUE (type), 0))
    {
      putc (';', asmfile);
      CHARS (1);
      print_wide_int (tree_low_cst (TYPE_MIN_VALUE (type), 0));
    }
  else
    {
      fprintf (asmfile, ";0");
      CHARS (2);
    }

  if (TYPE_MAX_VALUE (type) != 0
      && host_integerp (TYPE_MAX_VALUE (type), 0))
    {
      putc (';', asmfile);
      CHARS (1);
      print_wide_int (tree_low_cst (TYPE_MAX_VALUE (type), 0));
      putc (';', asmfile);
      CHARS (1);
    }
  else
    {
      fprintf (asmfile, ";-1;");
      CHARS (4);
    }
}

/* Output a reference to a type.  If the type has not yet been
   described in the dbx output, output its definition now.
   For a type already defined, just refer to its definition
   using the type number.

   If FULL is nonzero, and the type has been described only with
   a forward-reference, output the definition now.
   If FULL is zero in this case, just refer to the forward-reference
   using the number previously allocated.  */

static void
dbxout_type (type, full)
     tree type;
     int full;
{
  tree tem;
  tree main_variant;
  static int anonymous_type_number = 0;

  if (TREE_CODE (type) == VECTOR_TYPE)
    /* The frontend feeds us a representation for the vector as a struct
       containing an array.  Pull out the array type.  */
    type = TREE_TYPE (TYPE_FIELDS (TYPE_DEBUG_REPRESENTATION_TYPE (type)));

  /* If there was an input error and we don't really have a type,
     avoid crashing and write something that is at least valid
     by assuming `int'.  */
  if (type == error_mark_node)
    type = integer_type_node;
  else
    {
      if (TYPE_NAME (type)
	  && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
	  && TYPE_DECL_SUPPRESS_DEBUG (TYPE_NAME (type)))
	full = 0;
    }

  /* Try to find the "main variant" with the same name.  */
  if (TYPE_NAME (type) && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
      && DECL_ORIGINAL_TYPE (TYPE_NAME (type)))
    main_variant = TREE_TYPE (TYPE_NAME (type));
  else
    main_variant = TYPE_MAIN_VARIANT (type);

  /* If we are not using extensions, stabs does not distinguish const and
     volatile, so there is no need to make them separate types.  */
  if (!use_gnu_debug_info_extensions)
    type = main_variant;

  if (TYPE_SYMTAB_ADDRESS (type) == 0)
    {
      /* Type has no dbx number assigned.  Assign next available number.  */
      TYPE_SYMTAB_ADDRESS (type) = next_type_number++;

      /* Make sure type vector is long enough to record about this type.  */

      if (next_type_number == typevec_len)
	{
	  typevec
	    = (struct typeinfo *) xrealloc (typevec,
					    typevec_len * 2 * sizeof typevec[0]);
	  memset ((char *) (typevec + typevec_len), 0,
		 typevec_len * sizeof typevec[0]);
	  typevec_len *= 2;
	}

#ifdef DBX_USE_BINCL
      typevec[TYPE_SYMTAB_ADDRESS (type)].file_number
	= current_file->file_number;
      typevec[TYPE_SYMTAB_ADDRESS (type)].type_number
	= current_file->next_type_number++;
#endif
    }

  /* Output the number of this type, to refer to it.  */
  dbxout_type_index (type);

#ifdef DBX_TYPE_DEFINED
  if (DBX_TYPE_DEFINED (type))
    return;
#endif

  /* If this type's definition has been output or is now being output,
     that is all.  */

  switch (typevec[TYPE_SYMTAB_ADDRESS (type)].status)
    {
    case TYPE_UNSEEN:
      break;
    case TYPE_XREF:
      /* If we have already had a cross reference,
	 and either that's all we want or that's the best we could do,
	 don't repeat the cross reference.
	 Sun dbx crashes if we do.  */
      if (! full || !COMPLETE_TYPE_P (type)
	  /* No way in DBX fmt to describe a variable size.  */
	  || ! host_integerp (TYPE_SIZE (type), 1))
	return;
      break;
    case TYPE_DEFINED:
      return;
    }

#ifdef DBX_NO_XREFS
  /* For systems where dbx output does not allow the `=xsNAME:' syntax,
     leave the type-number completely undefined rather than output
     a cross-reference.  If we have already used GNU debug info extensions,
     then it is OK to output a cross reference.  This is necessary to get
     proper C++ debug output.  */
  if ((TREE_CODE (type) == RECORD_TYPE || TREE_CODE (type) == UNION_TYPE
       || TREE_CODE (type) == QUAL_UNION_TYPE
       || TREE_CODE (type) == ENUMERAL_TYPE)
      && ! use_gnu_debug_info_extensions)
    /* We must use the same test here as we use twice below when deciding
       whether to emit a cross-reference.  */
    if ((TYPE_NAME (type) != 0
	 && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
	       && DECL_IGNORED_P (TYPE_NAME (type)))
	 && !full)
	|| !COMPLETE_TYPE_P (type)
	/* No way in DBX fmt to describe a variable size.  */
	|| ! host_integerp (TYPE_SIZE (type), 1))
      {
	typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_XREF;
	return;
      }
#endif

  /* Output a definition now.  */

  fprintf (asmfile, "=");
  CHARS (1);

  /* Mark it as defined, so that if it is self-referent
     we will not get into an infinite recursion of definitions.  */

  typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_DEFINED;

  /* If this type is a variant of some other, hand off.  Types with
     different names are usefully distinguished.  We only distinguish
     cv-qualified types if we're using extensions.  */
  if (TYPE_READONLY (type) > TYPE_READONLY (main_variant))
    {
      putc ('k', asmfile);
      CHARS (1);
      dbxout_type (build_type_variant (type, 0, TYPE_VOLATILE (type)), 0);
      return;
    }
  else if (TYPE_VOLATILE (type) > TYPE_VOLATILE (main_variant))
    {
      putc ('B', asmfile);
      CHARS (1);
      dbxout_type (build_type_variant (type, TYPE_READONLY (type), 0), 0);
      return;
    }
  else if (main_variant != TYPE_MAIN_VARIANT (type))
    {
      /* 'type' is a typedef; output the type it refers to.  */
      dbxout_type (DECL_ORIGINAL_TYPE (TYPE_NAME (type)), 0);
      return;
    }
  /* else continue.  */

  switch (TREE_CODE (type))
    {
    case VOID_TYPE:
    case LANG_TYPE:
      /* For a void type, just define it as itself; ie, "5=5".
	 This makes us consider it defined
	 without saying what it is.  The debugger will make it
	 a void type when the reference is seen, and nothing will
	 ever override that default.  */
      dbxout_type_index (type);
      break;

    case INTEGER_TYPE:
      if (type == char_type_node && ! TREE_UNSIGNED (type))
	{
	  /* Output the type `char' as a subrange of itself!
	     I don't understand this definition, just copied it
	     from the output of pcc.
	     This used to use `r2' explicitly and we used to
	     take care to make sure that `char' was type number 2.  */
	  fprintf (asmfile, "r");
	  CHARS (1);
	  dbxout_type_index (type);
	  fprintf (asmfile, ";0;127;");
	  CHARS (7);
	}

      /* If this is a subtype of another integer type, always prefer to
	 write it as a subtype.  */
      else if (TREE_TYPE (type) != 0
	       && TREE_CODE (TREE_TYPE (type)) == INTEGER_TYPE)
	{
	  /* If the size is non-standard, say what it is if we can use
	     GDB extensions.  */

	  if (use_gnu_debug_info_extensions
	      && TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node))
	    {
	      have_used_extensions = 1;
	      fprintf (asmfile, "@s%d;", TYPE_PRECISION (type));
	      CHARS (5);
	    }

	  dbxout_range_type (type);
	}

      else
	{
	  /* If the size is non-standard, say what it is if we can use
	     GDB extensions.  */

	  if (use_gnu_debug_info_extensions
	      && TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node))
	    {
	      have_used_extensions = 1;
	      fprintf (asmfile, "@s%d;", TYPE_PRECISION (type));
	      CHARS (5);
	    }

	  /* If we can use GDB extensions and the size is wider than a
	     long (the size used by GDB to read them) or we may have
	     trouble writing the bounds the usual way, write them in
	     octal.  Note the test is for the *target's* size of "long",
	     not that of the host.  The host test is just to make sure we
	     can write it out in case the host wide int is narrower than the
	     target "long".  */

	  /* For unsigned types, we use octal if they are the same size or
	     larger.  This is because we print the bounds as signed decimal,
	     and hence they can't span same size unsigned types.  */

	  if (use_gnu_debug_info_extensions
	      && TYPE_MIN_VALUE (type) != 0
	      && TREE_CODE (TYPE_MIN_VALUE (type)) == INTEGER_CST
	      && TYPE_MAX_VALUE (type) != 0
	      && TREE_CODE (TYPE_MAX_VALUE (type)) == INTEGER_CST
	      && (TYPE_PRECISION (type) > TYPE_PRECISION (integer_type_node)
		  || ((TYPE_PRECISION (type)
		       == TYPE_PRECISION (integer_type_node))
		      && TREE_UNSIGNED (type))
		  || TYPE_PRECISION (type) > HOST_BITS_PER_WIDE_INT
		  || (TYPE_PRECISION (type) == HOST_BITS_PER_WIDE_INT
		      && TREE_UNSIGNED (type))))
	    {
	      fprintf (asmfile, "r");
	      CHARS (1);
	      dbxout_type_index (type);
	      fprintf (asmfile, ";");
	      CHARS (1);
	      print_int_cst_octal (TYPE_MIN_VALUE (type));
	      fprintf (asmfile, ";");
	      CHARS (1);
	      print_int_cst_octal (TYPE_MAX_VALUE (type));
	      fprintf (asmfile, ";");
	      CHARS (1);
	    }

	  else
	    /* Output other integer types as subranges of `int'.  */
	    dbxout_range_type (type);
	}

      break;

    case REAL_TYPE:
      /* This used to say `r1' and we used to take care
	 to make sure that `int' was type number 1.  */
      fprintf (asmfile, "r");
      CHARS (1);
      dbxout_type_index (integer_type_node);
      putc (';', asmfile);
      CHARS (1);
      print_wide_int (int_size_in_bytes (type));
      fputs (";0;", asmfile);
      CHARS (3);
      break;

    case CHAR_TYPE:
      if (use_gnu_debug_info_extensions)
	{
	  have_used_extensions = 1;
	  fputs ("@s", asmfile);
	  CHARS (2);
	  print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type));
	  fputs (";-20;", asmfile);
	  CHARS (4);
	}
      else
	{
	  /* Output the type `char' as a subrange of itself.
	     That is what pcc seems to do.  */
	  fprintf (asmfile, "r");
	  CHARS (1);
	  dbxout_type_index (char_type_node);
	  fprintf (asmfile, ";0;%d;", TREE_UNSIGNED (type) ? 255 : 127);
	  CHARS (7);
	}
      break;

    case BOOLEAN_TYPE:
      if (use_gnu_debug_info_extensions)
	{
	  have_used_extensions = 1;
	  fputs ("@s", asmfile);
	  CHARS (2);
	  print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type));
	  fputs (";-16;", asmfile);
	  CHARS (4);
	}
      else /* Define as enumeral type (False, True) */
	{
	  fprintf (asmfile, "eFalse:0,True:1,;");
	  CHARS (17);
	}
      break;

    case FILE_TYPE:
      putc ('d', asmfile);
      CHARS (1);
      dbxout_type (TREE_TYPE (type), 0);
      break;

    case COMPLEX_TYPE:
      /* Differs from the REAL_TYPE by its new data type number */

      if (TREE_CODE (TREE_TYPE (type)) == REAL_TYPE)
	{
	  putc ('R', asmfile);
	  CHARS (1);
	  dbxout_fptype_value (type);
	  putc (';', asmfile);
	  CHARS (1);
	  print_wide_int (2 * int_size_in_bytes (TREE_TYPE (type)));
	  fputs (";0;", asmfile);
	  CHARS (3);
	}
      else
	{
	  /* Output a complex integer type as a structure,
	     pending some other way to do it.  */
	  putc ('s', asmfile);
	  CHARS (1);
	  print_wide_int (int_size_in_bytes (type));
	  fprintf (asmfile, "real:");
	  CHARS (5);

	  dbxout_type (TREE_TYPE (type), 0);
	  fprintf (asmfile, ",0,%d;", TYPE_PRECISION (TREE_TYPE (type)));
	  CHARS (7);
	  fprintf (asmfile, "imag:");
	  CHARS (5);
	  dbxout_type (TREE_TYPE (type), 0);
	  fprintf (asmfile, ",%d,%d;;", TYPE_PRECISION (TREE_TYPE (type)),
		   TYPE_PRECISION (TREE_TYPE (type)));
	  CHARS (10);
	}
      break;

    case SET_TYPE:
      if (use_gnu_debug_info_extensions)
	{
	  have_used_extensions = 1;
	  fputs ("@s", asmfile);
	  CHARS (2);
	  print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type));
	  putc (';', asmfile);
	  CHARS (1);

	  /* Check if a bitstring type, which in Chill is
	     different from a [power]set.  */
	  if (TYPE_STRING_FLAG (type))
	    {
	      fprintf (asmfile, "@S;");
	      CHARS (3);
	    }
	}
      putc ('S', asmfile);
      CHARS (1);
      dbxout_type (TYPE_DOMAIN (type), 0);
      break;

    case ARRAY_TYPE:
      /* Make arrays of packed bits look like bitstrings for chill.  */
      if (TYPE_PACKED (type) && use_gnu_debug_info_extensions)
	{
	  have_used_extensions = 1;
	  fputs ("@s", asmfile);
	  CHARS (2);
	  print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type));
	  fprintf (asmfile, ";@S;S");
	  CHARS (5);
	  dbxout_type (TYPE_DOMAIN (type), 0);
	  break;
	}

      /* Output "a" followed by a range type definition
	 for the index type of the array
	 followed by a reference to the target-type.
	 ar1;0;N;M for a C array of type M and size N+1.  */
      /* Check if a character string type, which in Chill is
	 different from an array of characters.  */
      if (TYPE_STRING_FLAG (type) && use_gnu_debug_info_extensions)
	{
	  have_used_extensions = 1;
	  fprintf (asmfile, "@S;");
	  CHARS (3);
	}
      tem = TYPE_DOMAIN (type);
      if (tem == NULL)
	{
	  fprintf (asmfile, "ar");
	  CHARS (2);
	  dbxout_type_index (integer_type_node);
	  fprintf (asmfile, ";0;-1;");
	  CHARS (6);
	}
      else
	{
	  fprintf (asmfile, "a");
	  CHARS (1);
	  dbxout_range_type (tem);
	}

      dbxout_type (TREE_TYPE (type), 0);
      break;

    case RECORD_TYPE:
    case UNION_TYPE:
    case QUAL_UNION_TYPE:
      {
	int i, n_baseclasses = 0;

	if (TYPE_BINFO (type) != 0
	    && TREE_CODE (TYPE_BINFO (type)) == TREE_VEC
	    && TYPE_BINFO_BASETYPES (type) != 0)
	  n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type));

	/* Output a structure type.  We must use the same test here as we
	   use in the DBX_NO_XREFS case above.  */
	if ((TYPE_NAME (type) != 0
	     && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
		   && DECL_IGNORED_P (TYPE_NAME (type)))
	     && !full)
	    || !COMPLETE_TYPE_P (type)
	    /* No way in DBX fmt to describe a variable size.  */
	    || ! host_integerp (TYPE_SIZE (type), 1))
	  {
	    /* If the type is just a cross reference, output one
	       and mark the type as partially described.
	       If it later becomes defined, we will output
	       its real definition.
	       If the type has a name, don't nest its definition within
	       another type's definition; instead, output an xref
	       and let the definition come when the name is defined.  */
	    fputs ((TREE_CODE (type) == RECORD_TYPE) ? "xs" : "xu", asmfile);
	    CHARS (2);
#if 0 /* This assertion is legitimately false in C++.  */
	    /* We shouldn't be outputting a reference to a type before its
	       definition unless the type has a tag name.
	       A typedef name without a tag name should be impossible.  */
	    if (TREE_CODE (TYPE_NAME (type)) != IDENTIFIER_NODE)
	      abort ();
#endif
	    if (TYPE_NAME (type) != 0)
	      dbxout_type_name (type);
	    else
	      {
		fprintf (asmfile, "$$%d", anonymous_type_number++);
		CHARS (5);
	      }

	    fprintf (asmfile, ":");
	    CHARS (1);
	    typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_XREF;
	    break;
	  }

	/* Identify record or union, and print its size.  */
	putc (((TREE_CODE (type) == RECORD_TYPE) ? 's' : 'u'), asmfile);
	CHARS (1);
	print_wide_int (int_size_in_bytes (type));

	if (use_gnu_debug_info_extensions)
	  {
	    if (n_baseclasses)
	      {
		have_used_extensions = 1;
		fprintf (asmfile, "!%d,", n_baseclasses);
		CHARS (8);
	      }
	  }
	for (i = 0; i < n_baseclasses; i++)
	  {
	    tree child = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (type)), i);

	    if (use_gnu_debug_info_extensions)
	      {
		have_used_extensions = 1;
		putc (TREE_VIA_VIRTUAL (child) ? '1' : '0', asmfile);
		putc (TREE_VIA_PUBLIC (child) ? '2' : '0', asmfile);
		CHARS (2);
		if (TREE_VIA_VIRTUAL (child) && strcmp (lang_hooks.name, "GNU C++") == 0)
		  /* For a virtual base, print the (negative) offset within
		     the vtable where we must look to find the necessary
		     adjustment.  */
		  print_wide_int (tree_low_cst (BINFO_VPTR_FIELD (child), 0)
				  * BITS_PER_UNIT);
		else
		  print_wide_int (tree_low_cst (BINFO_OFFSET (child), 0)
				  * BITS_PER_UNIT);
		putc (',', asmfile);
		CHARS (1);
		dbxout_type (BINFO_TYPE (child), 0);
		putc (';', asmfile);
		CHARS (1);
	      }
	    else
	      {
		/* Print out the base class information with fields
		   which have the same names at the types they hold.  */
		dbxout_type_name (BINFO_TYPE (child));
		putc (':', asmfile);
		CHARS (1);
		dbxout_type (BINFO_TYPE (child), full);
		putc (',', asmfile);
		CHARS (1);
		print_wide_int (tree_low_cst (BINFO_OFFSET (child), 0)
				* BITS_PER_UNIT);
		putc (',', asmfile);
		CHARS (1);
		print_wide_int (tree_low_cst (DECL_SIZE
					      (TYPE_NAME
					       (BINFO_TYPE (child))),
					      0)
				* BITS_PER_UNIT);
		putc (';', asmfile);
		CHARS (1);
	      }
	  }
      }

      /* Write out the field declarations.  */
      dbxout_type_fields (type);
      if (use_gnu_debug_info_extensions && TYPE_METHODS (type) != NULL_TREE)
	{
	  have_used_extensions = 1;
	  dbxout_type_methods (type);
	}

      putc (';', asmfile);
      CHARS (1);

      if (use_gnu_debug_info_extensions && TREE_CODE (type) == RECORD_TYPE
	  /* Avoid the ~ if we don't really need it--it confuses dbx.  */
	  && TYPE_VFIELD (type))
	{
	  have_used_extensions = 1;

	  /* Tell GDB+ that it may keep reading.  */
	  putc ('~', asmfile);
	  CHARS (1);

	  /* We need to write out info about what field this class
	     uses as its "main" vtable pointer field, because if this
	     field is inherited from a base class, GDB cannot necessarily
	     figure out which field it's using in time.  */
	  if (TYPE_VFIELD (type))
	    {
	      putc ('%', asmfile);
	      CHARS (1);
	      dbxout_type (DECL_FCONTEXT (TYPE_VFIELD (type)), 0);
	    }

	  putc (';', asmfile);
	  CHARS (1);
	}
      break;

    case ENUMERAL_TYPE:
      /* We must use the same test here as we use in the DBX_NO_XREFS case
	 above.  We simplify it a bit since an enum will never have a variable
	 size.  */
      if ((TYPE_NAME (type) != 0
	   && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
		 && DECL_IGNORED_P (TYPE_NAME (type)))
	   && !full)
	  || !COMPLETE_TYPE_P (type))
	{
	  fprintf (asmfile, "xe");
	  CHARS (2);
	  dbxout_type_name (type);
	  typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_XREF;
	  putc (':', asmfile);
	  CHARS (1);
	  return;
	}
#ifdef DBX_OUTPUT_ENUM
      DBX_OUTPUT_ENUM (asmfile, type);
#else
      if (use_gnu_debug_info_extensions
	  && TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node))
	{
	  fprintf (asmfile, "@s%d;", TYPE_PRECISION (type));
	  CHARS (5);
	}

      putc ('e', asmfile);
      CHARS (1);
      for (tem = TYPE_VALUES (type); tem; tem = TREE_CHAIN (tem))
	{
	  fprintf (asmfile, "%s:", IDENTIFIER_POINTER (TREE_PURPOSE (tem)));
	  CHARS (IDENTIFIER_LENGTH (TREE_PURPOSE (tem)) + 1);
	  if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == 0)
	    print_wide_int (TREE_INT_CST_LOW (TREE_VALUE (tem)));
	  else if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == -1
		   && (HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_VALUE (tem)) < 0)
	    print_wide_int (TREE_INT_CST_LOW (TREE_VALUE (tem)));
	  else
	    print_int_cst_octal (TREE_VALUE (tem));

	  putc (',', asmfile);
	  CHARS (1);
	  if (TREE_CHAIN (tem) != 0)
	    CONTIN;
	}

      putc (';', asmfile);
      CHARS (1);
#endif
      break;

    case POINTER_TYPE:
      putc ('*', asmfile);
      CHARS (1);
      dbxout_type (TREE_TYPE (type), 0);
      break;

    case METHOD_TYPE:
      if (use_gnu_debug_info_extensions)
	{
	  have_used_extensions = 1;
	  putc ('#', asmfile);
	  CHARS (1);

	  /* Write the argument types out longhand.  */
	  dbxout_type (TYPE_METHOD_BASETYPE (type), 0);
	  putc (',', asmfile);
	  CHARS (1);
	  dbxout_type (TREE_TYPE (type), 0);
	  dbxout_args (TYPE_ARG_TYPES (type));
	  putc (';', asmfile);
	  CHARS (1);
	}
      else
	/* Treat it as a function type.  */
	dbxout_type (TREE_TYPE (type), 0);
      break;

    case OFFSET_TYPE:
      if (use_gnu_debug_info_extensions)
	{
	  have_used_extensions = 1;
	  putc ('@', asmfile);
	  CHARS (1);
	  dbxout_type (TYPE_OFFSET_BASETYPE (type), 0);
	  putc (',', asmfile);
	  CHARS (1);
	  dbxout_type (TREE_TYPE (type), 0);
	}
      else
	/* Should print as an int, because it is really just an offset.  */
	dbxout_type (integer_type_node, 0);
      break;

    case REFERENCE_TYPE:
      if (use_gnu_debug_info_extensions)
	have_used_extensions = 1;
      putc (use_gnu_debug_info_extensions ? '&' : '*', asmfile);
      CHARS (1);
      dbxout_type (TREE_TYPE (type), 0);
      break;

    case FUNCTION_TYPE:
      putc ('f', asmfile);
      CHARS (1);
      dbxout_type (TREE_TYPE (type), 0);
      break;

    default:
      abort ();
    }
}

/* Print the value of integer constant C, in octal,
   handling double precision.  */

static void
print_int_cst_octal (c)
     tree c;
{
  unsigned HOST_WIDE_INT high = TREE_INT_CST_HIGH (c);
  unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (c);
  int excess = (3 - (HOST_BITS_PER_WIDE_INT % 3));
  unsigned int width = TYPE_PRECISION (TREE_TYPE (c));

  /* GDB wants constants with no extra leading "1" bits, so
     we need to remove any sign-extension that might be
     present.  */
  if (width == HOST_BITS_PER_WIDE_INT * 2)
    ;
  else if (width > HOST_BITS_PER_WIDE_INT)
    high &= (((HOST_WIDE_INT) 1 << (width - HOST_BITS_PER_WIDE_INT)) - 1);
  else if (width == HOST_BITS_PER_WIDE_INT)
    high = 0;
  else
    high = 0, low &= (((HOST_WIDE_INT) 1 << width) - 1);

  fprintf (asmfile, "0");
  CHARS (1);

  if (excess == 3)
    {
      print_octal (high, HOST_BITS_PER_WIDE_INT / 3);
      print_octal (low, HOST_BITS_PER_WIDE_INT / 3);
    }
  else
    {
      unsigned HOST_WIDE_INT beg = high >> excess;
      unsigned HOST_WIDE_INT middle
	= ((high & (((HOST_WIDE_INT) 1 << excess) - 1)) << (3 - excess)
	   | (low >> (HOST_BITS_PER_WIDE_INT / 3 * 3)));
      unsigned HOST_WIDE_INT end
	= low & (((unsigned HOST_WIDE_INT) 1
		  << (HOST_BITS_PER_WIDE_INT / 3 * 3))
		 - 1);

      fprintf (asmfile, "%o%01o", (int) beg, (int) middle);
      CHARS (2);
      print_octal (end, HOST_BITS_PER_WIDE_INT / 3);
    }
}

static void
print_octal (value, digits)
     unsigned HOST_WIDE_INT value;
     int digits;
{
  int i;

  for (i = digits - 1; i >= 0; i--)
    fprintf (asmfile, "%01o", (int) ((value >> (3 * i)) & 7));

  CHARS (digits);
}

/* Output C in decimal while adjusting the number of digits written.  */

static void
print_wide_int (c)
     HOST_WIDE_INT c;
{
  int digs = 0;

  fprintf (asmfile, HOST_WIDE_INT_PRINT_DEC, c);

  if (c < 0)
    digs++, c = -c;

  while (c > 0)
    c /= 10; digs++;

  CHARS (digs);
}

/* Output the name of type TYPE, with no punctuation.
   Such names can be set up either by typedef declarations
   or by struct, enum and union tags.  */

static void
dbxout_type_name (type)
     tree type;
{
  tree t;
  if (TYPE_NAME (type) == 0)
    abort ();
  if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
    {
      t = TYPE_NAME (type);
    }
  else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL)
    {
      t = DECL_NAME (TYPE_NAME (type));
    }
  else
    abort ();

  fprintf (asmfile, "%s", IDENTIFIER_POINTER (t));
  CHARS (IDENTIFIER_LENGTH (t));
}

/* Output leading leading struct or class names needed for qualifying
   type whose scope is limited to a struct or class.  */

static void
dbxout_class_name_qualifiers (decl)
     tree decl;
{
  tree context = decl_type_context (decl);

  if (context != NULL_TREE 
      && TREE_CODE(context) == RECORD_TYPE
      && TYPE_NAME (context) != 0 
      && (TREE_CODE (TYPE_NAME (context)) == IDENTIFIER_NODE
          || (DECL_NAME (TYPE_NAME (context)) != 0)))
    {
      tree name = TYPE_NAME (context);

      if (TREE_CODE (name) == TYPE_DECL)
	{
	  dbxout_class_name_qualifiers (name);
	  name = DECL_NAME (name);
	}
      fprintf (asmfile, "%s::", IDENTIFIER_POINTER (name));
      CHARS (IDENTIFIER_LENGTH (name) + 2);
    }
}

/* Output a .stabs for the symbol defined by DECL,
   which must be a ..._DECL node in the normal namespace.
   It may be a CONST_DECL, a FUNCTION_DECL, a PARM_DECL or a VAR_DECL.
   LOCAL is nonzero if the scope is less than the entire file.
   Return 1 if a stabs might have been emitted.  */

int
dbxout_symbol (decl, local)
     tree decl;
     int local ATTRIBUTE_UNUSED;
{
  tree type = TREE_TYPE (decl);
  tree context = NULL_TREE;
  int result = 0;

  /* Cast avoids warning in old compilers.  */
  current_sym_code = (STAB_CODE_TYPE) 0;
  current_sym_value = 0;
  current_sym_addr = 0;

  /* Ignore nameless syms, but don't ignore type tags.  */

  if ((DECL_NAME (decl) == 0 && TREE_CODE (decl) != TYPE_DECL)
      || DECL_IGNORED_P (decl))
    return 0;

  dbxout_prepare_symbol (decl);

  /* The output will always start with the symbol name,
     so always count that in the length-output-so-far.  */

  if (DECL_NAME (decl) != 0)
    current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (decl));

  switch (TREE_CODE (decl))
    {
    case CONST_DECL:
      /* Enum values are defined by defining the enum type.  */
      break;

    case FUNCTION_DECL:
      if (DECL_RTL (decl) == 0)
	return 0;
      if (DECL_EXTERNAL (decl))
	break;
      /* Don't mention a nested function under its parent.  */
      context = decl_function_context (decl);
      if (context == current_function_decl)
	break;
      if (GET_CODE (DECL_RTL (decl)) != MEM
	  || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF)
	break;
      FORCE_TEXT;

      fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP,
	       IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)),
	       TREE_PUBLIC (decl) ? 'F' : 'f');
      result = 1;

      current_sym_code = N_FUN;
      current_sym_addr = XEXP (DECL_RTL (decl), 0);

      if (TREE_TYPE (type))
	dbxout_type (TREE_TYPE (type), 0);
      else
	dbxout_type (void_type_node, 0);

      /* For a nested function, when that function is compiled,
	 mention the containing function name
	 as well as (since dbx wants it) our own assembler-name.  */
      if (context != 0)
	fprintf (asmfile, ",%s,%s",
		 IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)),
		 IDENTIFIER_POINTER (DECL_NAME (context)));

      dbxout_finish_symbol (decl);
      break;

    case TYPE_DECL:
#if 0
      /* This seems all wrong.  Outputting most kinds of types gives no name
	 at all.  A true definition gives no name; a cross-ref for a
	 structure can give the tag name, but not a type name.
	 It seems that no typedef name is defined by outputting a type.  */

      /* If this typedef name was defined by outputting the type,
	 don't duplicate it.  */
      if (typevec[TYPE_SYMTAB_ADDRESS (type)].status == TYPE_DEFINED
	  && TYPE_NAME (TREE_TYPE (decl)) == decl)
	return 0;
#endif
      /* Don't output the same typedef twice.
         And don't output what language-specific stuff doesn't want output.  */
      if (TREE_ASM_WRITTEN (decl) || TYPE_DECL_SUPPRESS_DEBUG (decl))
	return 0;

      FORCE_TEXT;
      result = 1;
      {
	int tag_needed = 1;
	int did_output = 0;

	if (DECL_NAME (decl))
	  {
	    /* Nonzero means we must output a tag as well as a typedef.  */
	    tag_needed = 0;

	    /* Handle the case of a C++ structure or union
	       where the TYPE_NAME is a TYPE_DECL
	       which gives both a typedef name and a tag.  */
	    /* dbx requires the tag first and the typedef second.  */
	    if ((TREE_CODE (type) == RECORD_TYPE
		 || TREE_CODE (type) == UNION_TYPE
		 || TREE_CODE (type) == QUAL_UNION_TYPE)
		&& TYPE_NAME (type) == decl
		&& !(use_gnu_debug_info_extensions && have_used_extensions)
		&& !TREE_ASM_WRITTEN (TYPE_NAME (type))
		/* Distinguish the implicit typedefs of C++
		   from explicit ones that might be found in C.  */
		&& DECL_ARTIFICIAL (decl)
		/* Do not generate a tag for records of variable size,
		   since this type can not be properly described in the
		   DBX format, and it confuses some tools such as objdump.  */
		&& host_integerp (TYPE_SIZE (type), 1))
	      {
		tree name = TYPE_NAME (type);
		if (TREE_CODE (name) == TYPE_DECL)
		  name = DECL_NAME (name);

		current_sym_code = DBX_TYPE_DECL_STABS_CODE;
		current_sym_value = 0;
		current_sym_addr = 0;
		current_sym_nchars = 2 + IDENTIFIER_LENGTH (name);

		fprintf (asmfile, "%s\"%s:T", ASM_STABS_OP,
			 IDENTIFIER_POINTER (name));
		dbxout_type (type, 1);
		dbxout_finish_symbol (NULL_TREE);
	      }

	    /* Output .stabs (or whatever) and leading double quote.  */
	    fprintf (asmfile, "%s\"", ASM_STABS_OP);

	    if (use_gnu_debug_info_extensions)
	      {
		/* Output leading class/struct qualifiers.  */
		dbxout_class_name_qualifiers (decl);
	      }

	    /* Output typedef name.  */
	    fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (decl)));

	    /* Short cut way to output a tag also.  */
	    if ((TREE_CODE (type) == RECORD_TYPE
		 || TREE_CODE (type) == UNION_TYPE
		 || TREE_CODE (type) == QUAL_UNION_TYPE)
		&& TYPE_NAME (type) == decl
		/* Distinguish the implicit typedefs of C++
		   from explicit ones that might be found in C.  */
		&& DECL_ARTIFICIAL (decl))
	      {
		if (use_gnu_debug_info_extensions && have_used_extensions)
		  {
		    putc ('T', asmfile);
		    TREE_ASM_WRITTEN (TYPE_NAME (type)) = 1;
		  }
#if 0 /* Now we generate the tag for this case up above.  */
		else
		  tag_needed = 1;
#endif
	      }

	    putc ('t', asmfile);
	    current_sym_code = DBX_TYPE_DECL_STABS_CODE;

	    dbxout_type (type, 1);
	    dbxout_finish_symbol (decl);
	    did_output = 1;
	  }

	/* Don't output a tag if this is an incomplete type.  This prevents
	   the sun4 Sun OS 4.x dbx from crashing.  */

	if (tag_needed && TYPE_NAME (type) != 0
	    && (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE
		|| (DECL_NAME (TYPE_NAME (type)) != 0))
	    && COMPLETE_TYPE_P (type)
	    && !TREE_ASM_WRITTEN (TYPE_NAME (type)))
	  {
	    /* For a TYPE_DECL with no name, but the type has a name,
	       output a tag.
	       This is what represents `struct foo' with no typedef.  */
	    /* In C++, the name of a type is the corresponding typedef.
	       In C, it is an IDENTIFIER_NODE.  */
	    tree name = TYPE_NAME (type);
	    if (TREE_CODE (name) == TYPE_DECL)
	      name = DECL_NAME (name);

	    current_sym_code = DBX_TYPE_DECL_STABS_CODE;
	    current_sym_value = 0;
	    current_sym_addr = 0;
	    current_sym_nchars = 2 + IDENTIFIER_LENGTH (name);

	    fprintf (asmfile, "%s\"%s:T", ASM_STABS_OP,
		     IDENTIFIER_POINTER (name));
	    dbxout_type (type, 1);
	    dbxout_finish_symbol (NULL_TREE);
	    did_output = 1;
	  }

	/* If an enum type has no name, it cannot be referred to,
	   but we must output it anyway, since the enumeration constants
	   can be referred to.  */
	if (!did_output && TREE_CODE (type) == ENUMERAL_TYPE)
	  {
	    current_sym_code = DBX_TYPE_DECL_STABS_CODE;
	    current_sym_value = 0;
	    current_sym_addr = 0;
	    current_sym_nchars = 2;

	    /* Some debuggers fail when given NULL names, so give this a
	       harmless name of ` '.  */
	    fprintf (asmfile, "%s\" :T", ASM_STABS_OP);
	    dbxout_type (type, 1);
	    dbxout_finish_symbol (NULL_TREE);
	  }

	/* Prevent duplicate output of a typedef.  */
	TREE_ASM_WRITTEN (decl) = 1;
	break;
      }

    case PARM_DECL:
      /* Parm decls go in their own separate chains
	 and are output by dbxout_reg_parms and dbxout_parms.  */
      abort ();

    case RESULT_DECL:
      /* Named return value, treat like a VAR_DECL.  */
    case VAR_DECL:
      if (! DECL_RTL_SET_P (decl))
	return 0;
      /* Don't mention a variable that is external.
	 Let the file that defines it describe it.  */
      if (DECL_EXTERNAL (decl))
	break;

      /* If the variable is really a constant
	 and not written in memory, inform the debugger.  */
      if (TREE_STATIC (decl) && TREE_READONLY (decl)
	  && DECL_INITIAL (decl) != 0
	  && host_integerp (DECL_INITIAL (decl), 0)
	  && ! TREE_ASM_WRITTEN (decl)
	  && (DECL_CONTEXT (decl) == NULL_TREE
	      || TREE_CODE (DECL_CONTEXT (decl)) == BLOCK))
	{
	  if (TREE_PUBLIC (decl) == 0)
	    {
	      /* The sun4 assembler does not grok this.  */
	      const char *name = IDENTIFIER_POINTER (DECL_NAME (decl));

	      if (TREE_CODE (TREE_TYPE (decl)) == INTEGER_TYPE
		  || TREE_CODE (TREE_TYPE (decl)) == ENUMERAL_TYPE)
		{
		  HOST_WIDE_INT ival = tree_low_cst (DECL_INITIAL (decl), 0);
#ifdef DBX_OUTPUT_CONSTANT_SYMBOL
		  DBX_OUTPUT_CONSTANT_SYMBOL (asmfile, name, ival);
#else
		  fprintf (asmfile, "%s\"%s:c=i", ASM_STABS_OP, name);

		  fprintf (asmfile, HOST_WIDE_INT_PRINT_DEC, ival);
		  fprintf (asmfile, "\",0x%x,0,0,0\n", N_LSYM);
#endif
		  return 1;
		}
	      else if (TREE_CODE (TREE_TYPE (decl)) == REAL_TYPE)
		{
		  /* don't know how to do this yet.  */
		}
	      break;
	    }
	  /* else it is something we handle like a normal variable.  */
	}

      SET_DECL_RTL (decl, eliminate_regs (DECL_RTL (decl), 0, NULL_RTX));
#ifdef LEAF_REG_REMAP
      if (current_function_uses_only_leaf_regs)
	leaf_renumber_regs_insn (DECL_RTL (decl));
#endif

      result = dbxout_symbol_location (decl, type, 0, DECL_RTL (decl));
      break;

    default:
      break;
    }
  return result;
}

/* Output the stab for DECL, a VAR_DECL, RESULT_DECL or PARM_DECL.
   Add SUFFIX to its name, if SUFFIX is not 0.
   Describe the variable as residing in HOME
   (usually HOME is DECL_RTL (DECL), but not always).
   Returns 1 if the stab was really emitted.  */

static int
dbxout_symbol_location (decl, type, suffix, home)
     tree decl, type;
     const char *suffix;
     rtx home;
{
  int letter = 0;
  int regno = -1;

  /* Don't mention a variable at all
     if it was completely optimized into nothingness.

     If the decl was from an inline function, then its rtl
     is not identically the rtl that was used in this
     particular compilation.  */
  if (GET_CODE (home) == SUBREG)
    {
      rtx value = home;

      while (GET_CODE (value) == SUBREG)
	value = SUBREG_REG (value);
      if (GET_CODE (value) == REG)
	{
	  if (REGNO (value) >= FIRST_PSEUDO_REGISTER)
	    return 0;
	}
      home = alter_subreg (&home);
    }
  if (GET_CODE (home) == REG)
    {
      regno = REGNO (home);
      if (regno >= FIRST_PSEUDO_REGISTER)
	return 0;
    }

  /* The kind-of-variable letter depends on where
     the variable is and on the scope of its name:
     G and N_GSYM for static storage and global scope,
     S for static storage and file scope,
     V for static storage and local scope,
     for those two, use N_LCSYM if data is in bss segment,
     N_STSYM if in data segment, N_FUN otherwise.
     (We used N_FUN originally, then changed to N_STSYM
     to please GDB.  However, it seems that confused ld.
     Now GDB has been fixed to like N_FUN, says Kingdon.)
     no letter at all, and N_LSYM, for auto variable,
     r and N_RSYM for register variable.  */

  if (GET_CODE (home) == MEM
      && GET_CODE (XEXP (home, 0)) == SYMBOL_REF)
    {
      if (TREE_PUBLIC (decl))
	{
	  letter = 'G';
	  current_sym_code = N_GSYM;
	}
      else
	{
	  current_sym_addr = XEXP (home, 0);

	  letter = decl_function_context (decl) ? 'V' : 'S';

	  /* This should be the same condition as in assemble_variable, but
	     we don't have access to dont_output_data here.  So, instead,
	     we rely on the fact that error_mark_node initializers always
	     end up in bss for C++ and never end up in bss for C.  */
	  if (DECL_INITIAL (decl) == 0
	      || (!strcmp (lang_hooks.name, "GNU C++")
		  && DECL_INITIAL (decl) == error_mark_node))
	    current_sym_code = N_LCSYM;
	  else if (DECL_IN_TEXT_SECTION (decl))
	    /* This is not quite right, but it's the closest
	       of all the codes that Unix defines.  */
	    current_sym_code = DBX_STATIC_CONST_VAR_CODE;
	  else
	    {
	      /* Some ports can transform a symbol ref into a label ref,
		 because the symbol ref is too far away and has to be
		 dumped into a constant pool.  Alternatively, the symbol
		 in the constant pool might be referenced by a different
		 symbol.  */
	      if (GET_CODE (current_sym_addr) == SYMBOL_REF
		  && CONSTANT_POOL_ADDRESS_P (current_sym_addr))
		{
		  rtx tmp = get_pool_constant (current_sym_addr);

		  if (GET_CODE (tmp) == SYMBOL_REF
		      || GET_CODE (tmp) == LABEL_REF)
		    current_sym_addr = tmp;
		}

	      /* Ultrix `as' seems to need this.  */
#ifdef DBX_STATIC_STAB_DATA_SECTION
	      data_section ();
#endif
	      current_sym_code = N_STSYM;
	    }
	}
    }
  else if (regno >= 0)
    {
      letter = 'r';
      current_sym_code = N_RSYM;
      current_sym_value = DBX_REGISTER_NUMBER (regno);
    }
  else if (GET_CODE (home) == MEM
	   && (GET_CODE (XEXP (home, 0)) == MEM
	       || (GET_CODE (XEXP (home, 0)) == REG
		   && REGNO (XEXP (home, 0)) != HARD_FRAME_POINTER_REGNUM
		   && REGNO (XEXP (home, 0)) != STACK_POINTER_REGNUM
#if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
		   && REGNO (XEXP (home, 0)) != ARG_POINTER_REGNUM
#endif
		   )))
    /* If the value is indirect by memory or by a register
       that isn't the frame pointer
       then it means the object is variable-sized and address through
       that register or stack slot.  DBX has no way to represent this
       so all we can do is output the variable as a pointer.
       If it's not a parameter, ignore it.
       (VAR_DECLs like this can be made by integrate.c.)  */
    {
      if (GET_CODE (XEXP (home, 0)) == REG)
	{
	  letter = 'r';
	  current_sym_code = N_RSYM;
	  if (REGNO (XEXP (home, 0)) >= FIRST_PSEUDO_REGISTER)
	    return 0;
	  current_sym_value = DBX_REGISTER_NUMBER (REGNO (XEXP (home, 0)));
	}
      else
	{
	  current_sym_code = N_LSYM;
	  /* RTL looks like (MEM (MEM (PLUS (REG...) (CONST_INT...)))).
	     We want the value of that CONST_INT.  */
	  current_sym_value
	    = DEBUGGER_AUTO_OFFSET (XEXP (XEXP (home, 0), 0));
	}

      /* Effectively do build_pointer_type, but don't cache this type,
	 since it might be temporary whereas the type it points to
	 might have been saved for inlining.  */
      /* Don't use REFERENCE_TYPE because dbx can't handle that.  */
      type = make_node (POINTER_TYPE);
      TREE_TYPE (type) = TREE_TYPE (decl);
    }
  else if (GET_CODE (home) == MEM
	   && GET_CODE (XEXP (home, 0)) == REG)
    {
      current_sym_code = N_LSYM;
      current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0));
    }
  else if (GET_CODE (home) == MEM
	   && GET_CODE (XEXP (home, 0)) == PLUS
	   && GET_CODE (XEXP (XEXP (home, 0), 1)) == CONST_INT)
    {
      current_sym_code = N_LSYM;
      /* RTL looks like (MEM (PLUS (REG...) (CONST_INT...)))
	 We want the value of that CONST_INT.  */
      current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0));
    }
  else if (GET_CODE (home) == MEM
	   && GET_CODE (XEXP (home, 0)) == CONST)
    {
      /* Handle an obscure case which can arise when optimizing and
	 when there are few available registers.  (This is *always*
	 the case for i386/i486 targets).  The RTL looks like
	 (MEM (CONST ...)) even though this variable is a local `auto'
	 or a local `register' variable.  In effect, what has happened
	 is that the reload pass has seen that all assignments and
	 references for one such a local variable can be replaced by
	 equivalent assignments and references to some static storage
	 variable, thereby avoiding the need for a register.  In such
	 cases we're forced to lie to debuggers and tell them that
	 this variable was itself `static'.  */
      current_sym_code = N_LCSYM;
      letter = 'V';
      current_sym_addr = XEXP (XEXP (home, 0), 0);
    }
  else if (GET_CODE (home) == CONCAT)
    {
      tree subtype;

      /* If TYPE is not a COMPLEX_TYPE (it might be a RECORD_TYPE,
	 for example), then there is no easy way to figure out
	 what SUBTYPE should be.  So, we give up.  */
      if (TREE_CODE (type) != COMPLEX_TYPE)
	return 0;

      subtype = TREE_TYPE (type);

      /* If the variable's storage is in two parts,
	 output each as a separate stab with a modified name.  */
      if (WORDS_BIG_ENDIAN)
	dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 0));
      else
	dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 0));

      /* Cast avoids warning in old compilers.  */
      current_sym_code = (STAB_CODE_TYPE) 0;
      current_sym_value = 0;
      current_sym_addr = 0;
      dbxout_prepare_symbol (decl);

      if (WORDS_BIG_ENDIAN)
	dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 1));
      else
	dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 1));
      return 1;
    }
  else
    /* Address might be a MEM, when DECL is a variable-sized object.
       Or it might be const0_rtx, meaning previous passes
       want us to ignore this variable.  */
    return 0;

  /* Ok, start a symtab entry and output the variable name.  */
  FORCE_TEXT;

#ifdef DBX_STATIC_BLOCK_START
  DBX_STATIC_BLOCK_START (asmfile, current_sym_code);
#endif

  dbxout_symbol_name (decl, suffix, letter);
  dbxout_type (type, 0);
  dbxout_finish_symbol (decl);

#ifdef DBX_STATIC_BLOCK_END
  DBX_STATIC_BLOCK_END (asmfile, current_sym_code);
#endif
  return 1;
}

/* Output the symbol name of DECL for a stabs, with suffix SUFFIX.
   Then output LETTER to indicate the kind of location the symbol has.  */

static void
dbxout_symbol_name (decl, suffix, letter)
     tree decl;
     const char *suffix;
     int letter;
{
  const char *name;

  if (DECL_CONTEXT (decl) && TYPE_P (DECL_CONTEXT (decl)))
    /* One slight hitch: if this is a VAR_DECL which is a static
       class member, we must put out the mangled name instead of the
       DECL_NAME.  Note also that static member (variable) names DO NOT begin
       with underscores in .stabs directives.  */
    name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
  else
    /* ...but if we're function-local, we don't want to include the junk
       added by ASM_FORMAT_PRIVATE_NAME.  */
    name = IDENTIFIER_POINTER (DECL_NAME (decl));

  if (name == 0)
    name = "(anon)";
  fprintf (asmfile, "%s\"%s%s:", ASM_STABS_OP, name,
	   (suffix ? suffix : ""));

  if (letter)
    putc (letter, asmfile);
}

static void
dbxout_prepare_symbol (decl)
     tree decl ATTRIBUTE_UNUSED;
{
#ifdef WINNING_GDB
  const char *filename = DECL_SOURCE_FILE (decl);

  dbxout_source_file (asmfile, filename);
#endif
}

static void
dbxout_finish_symbol (sym)
     tree sym;
{
#ifdef DBX_FINISH_SYMBOL
  DBX_FINISH_SYMBOL (sym);
#else
  int line = 0;
  if (use_gnu_debug_info_extensions && sym != 0)
    line = DECL_SOURCE_LINE (sym);

  fprintf (asmfile, "\",%d,0,%d,", current_sym_code, line);
  if (current_sym_addr)
    output_addr_const (asmfile, current_sym_addr);
  else
    fprintf (asmfile, "%d", current_sym_value);
  putc ('\n', asmfile);
#endif
}

/* Output definitions of all the decls in a chain. Return nonzero if
   anything was output */

int
dbxout_syms (syms)
     tree syms;
{
  int result = 0;
  while (syms)
    {
      result += dbxout_symbol (syms, 1);
      syms = TREE_CHAIN (syms);
    }
  return result;
}

/* The following two functions output definitions of function parameters.
   Each parameter gets a definition locating it in the parameter list.
   Each parameter that is a register variable gets a second definition
   locating it in the register.

   Printing or argument lists in gdb uses the definitions that
   locate in the parameter list.  But reference to the variable in
   expressions uses preferentially the definition as a register.  */

/* Output definitions, referring to storage in the parmlist,
   of all the parms in PARMS, which is a chain of PARM_DECL nodes.  */

void
dbxout_parms (parms)
     tree parms;
{
  for (; parms; parms = TREE_CHAIN (parms))
    if (DECL_NAME (parms) && TREE_TYPE (parms) != error_mark_node)
      {
	dbxout_prepare_symbol (parms);

	/* Perform any necessary register eliminations on the parameter's rtl,
	   so that the debugging output will be accurate.  */
	DECL_INCOMING_RTL (parms)
	  = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX);
	SET_DECL_RTL (parms, eliminate_regs (DECL_RTL (parms), 0, NULL_RTX));
#ifdef LEAF_REG_REMAP
	if (current_function_uses_only_leaf_regs)
	  {
	    leaf_renumber_regs_insn (DECL_INCOMING_RTL (parms));
	    leaf_renumber_regs_insn (DECL_RTL (parms));
	  }
#endif

	if (PARM_PASSED_IN_MEMORY (parms))
	  {
	    rtx addr = XEXP (DECL_INCOMING_RTL (parms), 0);

	    /* ??? Here we assume that the parm address is indexed
	       off the frame pointer or arg pointer.
	       If that is not true, we produce meaningless results,
	       but do not crash.  */
	    if (GET_CODE (addr) == PLUS
		&& GET_CODE (XEXP (addr, 1)) == CONST_INT)
	      current_sym_value = INTVAL (XEXP (addr, 1));
	    else
	      current_sym_value = 0;

	    current_sym_code = N_PSYM;
	    current_sym_addr = 0;

	    FORCE_TEXT;
	    if (DECL_NAME (parms))
	      {
		current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));

		fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP,
			 IDENTIFIER_POINTER (DECL_NAME (parms)),
			 DBX_MEMPARM_STABS_LETTER);
	      }
	    else
	      {
		current_sym_nchars = 8;
		fprintf (asmfile, "%s\"(anon):%c", ASM_STABS_OP,
			 DBX_MEMPARM_STABS_LETTER);
	      }

	    /* It is quite tempting to use:

	           dbxout_type (TREE_TYPE (parms), 0);

	       as the next statement, rather than using DECL_ARG_TYPE(), so
	       that gcc reports the actual type of the parameter, rather
	       than the promoted type.  This certainly makes GDB's life
	       easier, at least for some ports.  The change is a bad idea
	       however, since GDB expects to be able access the type without
	       performing any conversions.  So for example, if we were
	       passing a float to an unprototyped function, gcc will store a
	       double on the stack, but if we emit a stab saying the type is a
	       float, then gdb will only read in a single value, and this will
	       produce an erroneous value.  */
	    dbxout_type (DECL_ARG_TYPE (parms), 0);
	    current_sym_value = DEBUGGER_ARG_OFFSET (current_sym_value, addr);
	    dbxout_finish_symbol (parms);
	  }
	else if (GET_CODE (DECL_RTL (parms)) == REG)
	  {
	    rtx best_rtl;
	    char regparm_letter;
	    tree parm_type;
	    /* Parm passed in registers and lives in registers or nowhere.  */

	    current_sym_code = DBX_REGPARM_STABS_CODE;
	    regparm_letter = DBX_REGPARM_STABS_LETTER;
	    current_sym_addr = 0;

	    /* If parm lives in a register, use that register;
	       pretend the parm was passed there.  It would be more consistent
	       to describe the register where the parm was passed,
	       but in practice that register usually holds something else.

	       If we use DECL_RTL, then we must use the declared type of
	       the variable, not the type that it arrived in.  */
	    if (REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
	      {
		best_rtl = DECL_RTL (parms);
		parm_type = TREE_TYPE (parms);
	      }
	    /* If the parm lives nowhere, use the register where it was
	       passed.  It is also better to use the declared type here.  */
	    else
	      {
		best_rtl = DECL_INCOMING_RTL (parms);
		parm_type = TREE_TYPE (parms);
	      }
	    current_sym_value = DBX_REGISTER_NUMBER (REGNO (best_rtl));

	    FORCE_TEXT;
	    if (DECL_NAME (parms))
	      {
		current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
		fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP,
			 IDENTIFIER_POINTER (DECL_NAME (parms)),
			 regparm_letter);
	      }
	    else
	      {
		current_sym_nchars = 8;
		fprintf (asmfile, "%s\"(anon):%c", ASM_STABS_OP,
			 regparm_letter);
	      }

	    dbxout_type (parm_type, 0);
	    dbxout_finish_symbol (parms);
	  }
	else if (GET_CODE (DECL_RTL (parms)) == MEM
		 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
		 && REGNO (XEXP (DECL_RTL (parms), 0)) != HARD_FRAME_POINTER_REGNUM
		 && REGNO (XEXP (DECL_RTL (parms), 0)) != STACK_POINTER_REGNUM
#if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
		 && REGNO (XEXP (DECL_RTL (parms), 0)) != ARG_POINTER_REGNUM
#endif
		 )
	  {
	    /* Parm was passed via invisible reference.
	       That is, its address was passed in a register.
	       Output it as if it lived in that register.
	       The debugger will know from the type
	       that it was actually passed by invisible reference.  */

	    char regparm_letter;
	    /* Parm passed in registers and lives in registers or nowhere.  */

	    current_sym_code = DBX_REGPARM_STABS_CODE;
	    if (use_gnu_debug_info_extensions)
	      regparm_letter = GDB_INV_REF_REGPARM_STABS_LETTER;
	    else
	      regparm_letter = DBX_REGPARM_STABS_LETTER;

	    /* DECL_RTL looks like (MEM (REG...).  Get the register number.
	       If it is an unallocated pseudo-reg, then use the register where
	       it was passed instead.  */
	    if (REGNO (XEXP (DECL_RTL (parms), 0)) < FIRST_PSEUDO_REGISTER)
	      current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
	    else
	      current_sym_value = REGNO (DECL_INCOMING_RTL (parms));

	    current_sym_addr = 0;

	    FORCE_TEXT;
	    if (DECL_NAME (parms))
	      {
		current_sym_nchars
		  = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));

		fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP,
			 IDENTIFIER_POINTER (DECL_NAME (parms)),
			 regparm_letter);
	      }
	    else
	      {
		current_sym_nchars = 8;
		fprintf (asmfile, "%s\"(anon):%c", ASM_STABS_OP,
			 regparm_letter);
	      }

	    dbxout_type (TREE_TYPE (parms), 0);
	    dbxout_finish_symbol (parms);
	  }
	else if (GET_CODE (DECL_RTL (parms)) == MEM
		 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM)
	  {
	    /* Parm was passed via invisible reference, with the reference
	       living on the stack.  DECL_RTL looks like
	       (MEM (MEM (PLUS (REG ...) (CONST_INT ...)))) or it
	       could look like (MEM (MEM (REG))).  */
	    const char *const decl_name = (DECL_NAME (parms)
				     ? IDENTIFIER_POINTER (DECL_NAME (parms))
				     : "(anon)");
	    if (GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 0)) == REG)
	      current_sym_value = 0;
	    else
	      current_sym_value
	        = INTVAL (XEXP (XEXP (XEXP (DECL_RTL (parms), 0), 0), 1));
	    current_sym_addr = 0;
	    current_sym_code = N_PSYM;

	    FORCE_TEXT;
	    fprintf (asmfile, "%s\"%s:v", ASM_STABS_OP, decl_name);

	    current_sym_value
	      = DEBUGGER_ARG_OFFSET (current_sym_value,
				     XEXP (XEXP (DECL_RTL (parms), 0), 0));
	    dbxout_type (TREE_TYPE (parms), 0);
	    dbxout_finish_symbol (parms);
	  }
	else if (GET_CODE (DECL_RTL (parms)) == MEM
		 && XEXP (DECL_RTL (parms), 0) != const0_rtx
		 /* ??? A constant address for a parm can happen
		    when the reg it lives in is equiv to a constant in memory.
		    Should make this not happen, after 2.4.  */
		 && ! CONSTANT_P (XEXP (DECL_RTL (parms), 0)))
	  {
	    /* Parm was passed in registers but lives on the stack.  */

	    current_sym_code = N_PSYM;
	    /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))),
	       in which case we want the value of that CONST_INT,
	       or (MEM (REG ...)),
	       in which case we use a value of zero.  */
	    if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG)
	      current_sym_value = 0;
	    else
		current_sym_value
		  = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1));

	    current_sym_addr = 0;

	    /* Make a big endian correction if the mode of the type of the
	       parameter is not the same as the mode of the rtl.  */
	    if (BYTES_BIG_ENDIAN
		&& TYPE_MODE (TREE_TYPE (parms)) != GET_MODE (DECL_RTL (parms))
		&& GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (parms))) < UNITS_PER_WORD)
	      {
		current_sym_value +=
		    GET_MODE_SIZE (GET_MODE (DECL_RTL (parms)))
		    - GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (parms)));
	      }

	    FORCE_TEXT;
	    if (DECL_NAME (parms))
	      {
		current_sym_nchars
		  = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));

		fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP,
			 IDENTIFIER_POINTER (DECL_NAME (parms)),
			 DBX_MEMPARM_STABS_LETTER);
	      }
	    else
	      {
		current_sym_nchars = 8;
		fprintf (asmfile, "%s\"(anon):%c", ASM_STABS_OP,
		DBX_MEMPARM_STABS_LETTER);
	      }

	    current_sym_value
	      = DEBUGGER_ARG_OFFSET (current_sym_value,
				     XEXP (DECL_RTL (parms), 0));
	    dbxout_type (TREE_TYPE (parms), 0);
	    dbxout_finish_symbol (parms);
	  }
      }
}

/* Output definitions for the places where parms live during the function,
   when different from where they were passed, when the parms were passed
   in memory.

   It is not useful to do this for parms passed in registers
   that live during the function in different registers, because it is
   impossible to look in the passed register for the passed value,
   so we use the within-the-function register to begin with.

   PARMS is a chain of PARM_DECL nodes.  */

void
dbxout_reg_parms (parms)
     tree parms;
{
  for (; parms; parms = TREE_CHAIN (parms))
    if (DECL_NAME (parms) && PARM_PASSED_IN_MEMORY (parms))
      {
	dbxout_prepare_symbol (parms);

	/* Report parms that live in registers during the function
	   but were passed in memory.  */
	if (GET_CODE (DECL_RTL (parms)) == REG
	    && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
	  dbxout_symbol_location (parms, TREE_TYPE (parms),
				  0, DECL_RTL (parms));
	else if (GET_CODE (DECL_RTL (parms)) == CONCAT)
	  dbxout_symbol_location (parms, TREE_TYPE (parms),
				  0, DECL_RTL (parms));
	/* Report parms that live in memory but not where they were passed.  */
	else if (GET_CODE (DECL_RTL (parms)) == MEM
		 && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
	  dbxout_symbol_location (parms, TREE_TYPE (parms),
				  0, DECL_RTL (parms));
      }
}

/* Given a chain of ..._TYPE nodes (as come in a parameter list),
   output definitions of those names, in raw form */

static void
dbxout_args (args)
     tree args;
{
  while (args)
    {
      putc (',', asmfile);
      dbxout_type (TREE_VALUE (args), 0);
      CHARS (1);
      args = TREE_CHAIN (args);
    }
}

/* Output everything about a symbol block (a BLOCK node
   that represents a scope level),
   including recursive output of contained blocks.

   BLOCK is the BLOCK node.
   DEPTH is its depth within containing symbol blocks.
   ARGS is usually zero; but for the outermost block of the
   body of a function, it is a chain of PARM_DECLs for the function parameters.
   We output definitions of all the register parms
   as if they were local variables of that block.

   If -g1 was used, we count blocks just the same, but output nothing
   except for the outermost block.

   Actually, BLOCK may be several blocks chained together.
   We handle them all in sequence.  */

static void
dbxout_block (block, depth, args)
     tree block;
     int depth;
     tree args;
{
  int blocknum = -1;

#if DBX_BLOCKS_FUNCTION_RELATIVE
  const char *begin_label;
  if (current_function_func_begin_label != NULL_TREE)
    begin_label = IDENTIFIER_POINTER (current_function_func_begin_label);
  else
    begin_label = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0);
#endif

  while (block)
    {
      /* Ignore blocks never expanded or otherwise marked as real.  */
      if (TREE_USED (block) && TREE_ASM_WRITTEN (block))
	{
	  int did_output;

#ifdef DBX_LBRAC_FIRST
	  did_output = 1;
#else
	  /* In dbx format, the syms of a block come before the N_LBRAC.
	     If nothing is output, we don't need the N_LBRAC, either.  */
	  did_output = 0;
	  if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
	    did_output = dbxout_syms (BLOCK_VARS (block));
	  if (args)
	    dbxout_reg_parms (args);
#endif

	  /* Now output an N_LBRAC symbol to represent the beginning of
	     the block.  Use the block's tree-walk order to generate
	     the assembler symbols LBBn and LBEn
	     that final will define around the code in this block.  */
	  if (depth > 0 && did_output)
	    {
	      char buf[20];
	      blocknum = BLOCK_NUMBER (block);
	      ASM_GENERATE_INTERNAL_LABEL (buf, "LBB", blocknum);

	      if (BLOCK_HANDLER_BLOCK (block))
		{
		  /* A catch block.  Must precede N_LBRAC.  */
		  tree decl = BLOCK_VARS (block);
		  while (decl)
		    {
#ifdef DBX_OUTPUT_CATCH
		      DBX_OUTPUT_CATCH (asmfile, decl, buf);
#else
		      fprintf (asmfile, "%s\"%s:C1\",%d,0,0,", ASM_STABS_OP,
			       IDENTIFIER_POINTER (DECL_NAME (decl)), N_CATCH);
		      assemble_name (asmfile, buf);
		      fprintf (asmfile, "\n");
#endif
		      decl = TREE_CHAIN (decl);
		    }
		}

#ifdef DBX_OUTPUT_LBRAC
	      DBX_OUTPUT_LBRAC (asmfile, buf);
#else
	      fprintf (asmfile, "%s%d,0,0,", ASM_STABN_OP, N_LBRAC);
	      assemble_name (asmfile, buf);
#if DBX_BLOCKS_FUNCTION_RELATIVE
	      putc ('-', asmfile);
	      assemble_name (asmfile, begin_label);
#endif
	      fprintf (asmfile, "\n");
#endif
	    }

#ifdef DBX_LBRAC_FIRST
	  /* On some weird machines, the syms of a block
	     come after the N_LBRAC.  */
	  if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
	    dbxout_syms (BLOCK_VARS (block));
	  if (args)
	    dbxout_reg_parms (args);
#endif

	  /* Output the subblocks.  */
	  dbxout_block (BLOCK_SUBBLOCKS (block), depth + 1, NULL_TREE);

	  /* Refer to the marker for the end of the block.  */
	  if (depth > 0 && did_output)
	    {
	      char buf[20];
	      ASM_GENERATE_INTERNAL_LABEL (buf, "LBE", blocknum);
#ifdef DBX_OUTPUT_RBRAC
	      DBX_OUTPUT_RBRAC (asmfile, buf);
#else
	      fprintf (asmfile, "%s%d,0,0,", ASM_STABN_OP, N_RBRAC);
	      assemble_name (asmfile, buf);
#if DBX_BLOCKS_FUNCTION_RELATIVE
	      putc ('-', asmfile);
	      assemble_name (asmfile, begin_label);
#endif
	      fprintf (asmfile, "\n");
#endif
	    }
	}
      block = BLOCK_CHAIN (block);
    }
}

/* Output the information about a function and its arguments and result.
   Usually this follows the function's code,
   but on some systems, it comes before.  */

#if defined (DBX_DEBUGGING_INFO)
static void
dbxout_begin_function (decl)
     tree decl;
{
  dbxout_symbol (decl, 0);
  dbxout_parms (DECL_ARGUMENTS (decl));
  if (DECL_NAME (DECL_RESULT (decl)) != 0)
    dbxout_symbol (DECL_RESULT (decl), 1);
}
#endif /* DBX_DEBUGGING_INFO */

#endif /* DBX_DEBUGGING_INFO || XCOFF_DEBUGGING_INFO */