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
|
/* Output dbx-format symbol table information from GNU compiler.
Copyright (C) 1987, 1988, 1992, 1993, 1994 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC 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.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, 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 these first, because they may define MIN and MAX. */
#include <stdio.h>
#include <errno.h>
#include "config.h"
#include "tree.h"
#include "rtl.h"
#include "flags.h"
#include "regs.h"
#include "insn-config.h"
#include "reload.h"
#include "defaults.h"
#include "output.h" /* ASM_OUTPUT_SOURCE_LINE may refer to sdb functions. */
#ifndef errno
extern int errno;
#endif
#ifdef XCOFF_DEBUGGING_INFO
#include "xcoffout.h"
#endif
#ifndef ASM_STABS_OP
#define ASM_STABS_OP ".stabs"
#endif
#ifndef ASM_STABN_OP
#define ASM_STABN_OP ".stabn"
#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
#ifndef DBX_MEMPARM_STABS_LETTER
#define DBX_MEMPARM_STABS_LETTER 'p'
#endif
#ifndef FILE_NAME_JOINER
#define FILE_NAME_JOINER "/"
#endif
/* Nonzero means if the type has methods, only output debugging
information if methods are actually written to the asm file. */
static int flag_minimal_debug = 1;
/* 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. */
static int source_label_number = 1;
char *getpwd ();
/* 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)
#ifdef DEBUG_SYMS_TEXT
#define FORCE_TEXT text_section ();
#else
#define FORCE_TEXT
#endif
#if defined (USG) || defined (NO_STAB_H)
#include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
#else
#include <stab.h> /* On BSD, use the system's stab.h. */
/* This is a GNU extension we need to reference in this file. */
#ifndef N_CATCH
#define N_CATCH 0x54
#endif
#endif /* not USG */
#ifdef __GNU_STAB__
#define STAB_CODE_TYPE enum __stab_debug_code
#else
#define STAB_CODE_TYPE int
#endif
/* 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 char *lastfile;
/* Current working directory. */
static char *cwd;
enum typestatus {TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED};
/* Vector recording the status of describing 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.
The vector element says whether we have yet output
the definition of the type. TYPE_XREF says we have
output it as a cross-reference only. */
enum typestatus *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;
/* In dbx output, we must assign symbol-blocks id numbers
in the order in which their beginnings are encountered.
We output debugging info that refers to the beginning and
end of the ranges of code in each block
with assembler labels LBBn and LBEn, where n is the block number.
The labels are generated in final, which assigns numbers to the
blocks in the same way. */
static int next_block_number;
/* 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
#endif
void dbxout_types ();
void dbxout_args ();
void dbxout_symbol ();
static void dbxout_type_name ();
static void dbxout_type ();
static void dbxout_typedefs ();
static void dbxout_symbol_name ();
static void dbxout_symbol_location ();
static void dbxout_prepare_symbol ();
static void dbxout_finish_symbol ();
static void dbxout_continue ();
static void print_int_cst_octal ();
static void print_octal ();
#if 0 /* Not clear we will actually need this. */
/* Return the absolutized filename for the given relative
filename. Note that if that filename is already absolute, it may
still be returned in a modified form because this routine also
eliminates redundant slashes and single dots and eliminates double
dots to get a shortest possible filename from the given input
filename. The absolutization of relative filenames is made by
assuming that the given filename is to be taken as relative to
the first argument (cwd) or to the current directory if cwd is
NULL. */
static char *
abspath (rel_filename)
char *rel_filename;
{
/* Setup the current working directory as needed. */
char *abs_buffer
= (char *) alloca (strlen (cwd) + strlen (rel_filename) + 1);
char *endp = abs_buffer;
char *outp, *inp;
char *value;
/* Copy the filename (possibly preceded by the current working
directory name) into the absolutization buffer. */
{
char *src_p;
if (rel_filename[0] != '/')
{
src_p = cwd;
while (*endp++ = *src_p++)
continue;
*(endp-1) = '/'; /* overwrite null */
}
src_p = rel_filename;
while (*endp++ = *src_p++)
continue;
if (endp[-1] == '/')
*endp = '\0';
/* Now make a copy of abs_buffer into abs_buffer, shortening the
filename (by taking out slashes and dots) as we go. */
outp = inp = abs_buffer;
*outp++ = *inp++; /* copy first slash */
for (;;)
{
if (!inp[0])
break;
else if (inp[0] == '/' && outp[-1] == '/')
{
inp++;
continue;
}
else if (inp[0] == '.' && outp[-1] == '/')
{
if (!inp[1])
break;
else if (inp[1] == '/')
{
inp += 2;
continue;
}
else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/'))
{
inp += (inp[2] == '/') ? 3 : 2;
outp -= 2;
while (outp >= abs_buffer && *outp != '/')
outp--;
if (outp < abs_buffer)
{
/* Catch cases like /.. where we try to backup to a
point above the absolute root of the logical file
system. */
fprintf (stderr, "%s: invalid file name: %s\n",
pname, rel_filename);
exit (1);
}
*++outp = '\0';
continue;
}
}
*outp++ = *inp++;
}
/* On exit, make sure that there is a trailing null, and make sure that
the last character of the returned string is *not* a slash. */
*outp = '\0';
if (outp[-1] == '/')
*--outp = '\0';
/* Make a copy (in the heap) of the stuff left in the absolutization
buffer and return a pointer to the copy. */
value = (char *) oballoc (strlen (abs_buffer) + 1);
strcpy (value, abs_buffer);
return value;
}
#endif /* 0 */
/* At the beginning of compilation, start writing the symbol table.
Initialize `typevec' and output the standard data types of C. */
void
dbxout_init (asm_file, input_file_name, syms)
FILE *asm_file;
char *input_file_name;
tree syms;
{
char ltext_label_name[100];
asmfile = asm_file;
typevec_len = 100;
typevec = (enum typestatus *) xmalloc (typevec_len * sizeof typevec[0]);
bzero ((char *) typevec, 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] != '/'))
{
char *wdslash = xmalloc (strlen (cwd) + sizeof (FILE_NAME_JOINER));
sprintf (wdslash, "%s%s", cwd, FILE_NAME_JOINER);
cwd = wdslash;
}
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,%s\n", N_SO, <ext_label_name[1]);
#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,%s\n",
N_SO, <ext_label_name[1]);
text_section ();
ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Ltext", 0);
#endif /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
/* Possibly output something to inform GDB that this compilation was by
GCC. It's easier for GDB to parse it when after the N_SO's. This
is used in Solaris 2. */
#ifdef ASM_IDENTIFY_GCC_AFTER_SOURCE
ASM_IDENTIFY_GCC_AFTER_SOURCE (asmfile);
#endif
lastfile = input_file_name;
next_type_number = 1;
next_block_number = 2;
/* 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
&& ! TREE_ASM_WRITTEN (TYPE_NAME (type)))
dbxout_symbol (TYPE_NAME (type), 0);
}
}
}
/* Output debugging info to FILE to switch to sourcefile FILENAME. */
void
dbxout_source_file (file, filename)
FILE *file;
char *filename;
{
char ltext_label_name[100];
if (filename && (lastfile == 0 || strcmp (filename, lastfile)))
{
#ifdef DBX_OUTPUT_SOURCE_FILENAME
DBX_OUTPUT_SOURCE_FILENAME (file, filename);
#else
ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext",
source_label_number);
fprintf (file, "%s ", ASM_STABS_OP);
output_quoted_string (file, filename);
fprintf (file, ",%d,0,0,%s\n", N_SOL, <ext_label_name[1]);
text_section ();
ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Ltext", source_label_number);
source_label_number++;
#endif
lastfile = filename;
}
}
/* Output a line number symbol entry into output stream FILE,
for source file FILENAME and line number LINENO. */
void
dbxout_source_line (file, filename, lineno)
FILE *file;
char *filename;
int lineno;
{
dbxout_source_file (file, filename);
#ifdef ASM_OUTPUT_SOURCE_LINE
ASM_OUTPUT_SOURCE_LINE (file, lineno);
#else
fprintf (file, "\t%s %d,0,%d\n", ASM_STABD_OP, N_SLINE, lineno);
#endif
}
/* 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. */
void
dbxout_finish (file, filename)
FILE *file;
char *filename;
{
#ifdef DBX_OUTPUT_MAIN_SOURCE_FILE_END
DBX_OUTPUT_MAIN_SOURCE_FILE_END (file, filename);
#endif /* DBX_OUTPUT_MAIN_SOURCE_FILE_END */
}
/* 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;
}
/* 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. */
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)
continue;
/* Omit fields whose position or size are variable. */
else if (TREE_CODE (tem) == FIELD_DECL
&& (TREE_CODE (DECL_FIELD_BITPOS (tem)) != INTEGER_CST
|| TREE_CODE (DECL_SIZE (tem)) != INTEGER_CST))
continue;
/* Omit here the nameless fields that are used to skip bits. */
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 (use_gnu_debug_info_extensions
&& flag_minimal_debug
&& TREE_CODE (tem) == FIELD_DECL
&& DECL_VIRTUAL_P (tem)
&& DECL_ASSEMBLER_NAME (tem))
{
have_used_extensions = 1;
CHARS (3 + IDENTIFIER_LENGTH (DECL_NAME (TYPE_NAME (DECL_FCONTEXT (tem)))));
fputs (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem)), asmfile);
dbxout_type (DECL_FCONTEXT (tem), 0, 0);
fprintf (asmfile, ":");
dbxout_type (TREE_TYPE (tem), 0, 0);
fprintf (asmfile, ",%d;",
TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)));
continue;
}
if (DECL_NAME (tem))
{
fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (tem)));
CHARS (2 + IDENTIFIER_LENGTH (DECL_NAME (tem)));
}
else
{
fprintf (asmfile, ":");
CHARS (2);
}
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, 0);
if (TREE_CODE (tem) == VAR_DECL)
{
if (TREE_STATIC (tem) && use_gnu_debug_info_extensions)
{
char *name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem));
have_used_extensions = 1;
fprintf (asmfile, ":%s;", name);
CHARS (strlen (name));
}
else
{
/* If TEM is non-static, GDB won't understand it. */
fprintf (asmfile, ",0,0;");
}
}
else if (TREE_CODE (DECL_FIELD_BITPOS (tem)) == INTEGER_CST)
{
fprintf (asmfile, ",%d,%d;",
TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)),
TREE_INT_CST_LOW (DECL_SIZE (tem)));
}
CHARS (23);
}
}
}
/* 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;
char *debug_name;
{
tree firstarg = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl)));
char c1 = 'A', c2;
if (TREE_CODE (TREE_TYPE (decl)) == FUNCTION_TYPE)
c2 = '?';
else /* it's a METHOD_TYPE. */
{
/* 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))
{
fprintf (asmfile, "%d;",
TREE_INT_CST_LOW (DECL_VINDEX (decl)));
dbxout_type (DECL_CONTEXT (decl), 0, 0);
fprintf (asmfile, ";");
CHARS (8);
}
}
/* Subroutine of `dbxout_type'. Output debug info about the methods defined
in TYPE. */
static void
dbxout_type_methods (type)
register tree type;
{
/* C++: put out the method names and their parameter lists */
tree methods = TYPE_METHODS (type);
tree type_encoding;
register tree fndecl;
register tree last;
char formatted_type_identifier_length[16];
register 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. */
{
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;
#ifdef HAVE_TEMPLATES
if (warn_template_debugging)
warning ("dbx info for template class methods not yet supported");
#endif
}
return;
}
}
#endif
type_identifier_length = IDENTIFIER_LENGTH (type_encoding);
sprintf(formatted_type_identifier_length, "%d", type_identifier_length);
if (TREE_CODE (methods) == FUNCTION_DECL)
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)
{
tree name = DECL_NAME (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. */
char *debug_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl));
int destructor = 0;
CONTIN;
last = fndecl;
if (DECL_IGNORED_P (fndecl))
continue;
if (flag_minimal_debug)
{
/* Detect ordinary methods because their mangled names
start with the operation name. */
if (!strncmp (IDENTIFIER_POINTER (name), debug_name,
IDENTIFIER_LENGTH (name)))
{
debug_name += IDENTIFIER_LENGTH (name);
if (debug_name[0] == '_' && debug_name[1] == '_')
{
char *method_name = debug_name + 2;
char *length_ptr = formatted_type_identifier_length;
/* Get past const and volatile qualifiers. */
while (*method_name == 'C' || *method_name == 'V')
method_name++;
/* Skip digits for length of type_encoding. */
while (*method_name == *length_ptr && *length_ptr)
length_ptr++, method_name++;
if (! strncmp (method_name,
IDENTIFIER_POINTER (type_encoding),
type_identifier_length))
method_name += type_identifier_length;
debug_name = method_name;
}
}
/* Detect constructors by their style of name mangling. */
else if (debug_name[0] == '_' && debug_name[1] == '_')
{
char *ctor_name = debug_name + 2;
char *length_ptr = formatted_type_identifier_length;
while (*ctor_name == 'C' || *ctor_name == 'V')
ctor_name++;
/* Skip digits for length of type_encoding. */
while (*ctor_name == *length_ptr && *length_ptr)
length_ptr++, ctor_name++;
if (!strncmp (IDENTIFIER_POINTER (type_encoding), ctor_name,
type_identifier_length))
debug_name = ctor_name + type_identifier_length;
}
/* The other alternative is a destructor. */
else
destructor = 1;
/* Output the operation name just once, for the first method
that we output. */
if (need_prefix)
{
fprintf (asmfile, "%s::", IDENTIFIER_POINTER (name));
CHARS (IDENTIFIER_LENGTH (name) + 2);
need_prefix = 0;
}
}
dbxout_type (TREE_TYPE (fndecl), 0, destructor);
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, 0);
else if (TREE_CODE (type) != INTEGER_TYPE)
dbxout_type (type, 0, 0); /* E.g. Pascal's ARRAY [BOOLEAN] of INTEGER */
else
{
/* This used to say `r1' and we used to take care
to make sure that `int' was type number 1. */
fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (integer_type_node));
}
if (TREE_CODE (TYPE_MIN_VALUE (type)) == INTEGER_CST)
fprintf (asmfile, ";%d",
TREE_INT_CST_LOW (TYPE_MIN_VALUE (type)));
else
fprintf (asmfile, ";0");
if (TREE_CODE (TYPE_MAX_VALUE (type)) == INTEGER_CST)
fprintf (asmfile, ";%d;",
TREE_INT_CST_LOW (TYPE_MAX_VALUE (type)));
else
fprintf (asmfile, ";-1;");
}
/* 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.
If SHOW_ARG_TYPES is nonzero, we output a description of the argument
types for a METHOD_TYPE. */
static void
dbxout_type (type, full, show_arg_types)
tree type;
int full;
int show_arg_types;
{
register tree tem;
static int anonymous_type_number = 0;
/* 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
{
type = TYPE_MAIN_VARIANT (type);
if (TYPE_NAME (type)
&& TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
&& TYPE_DECL_SUPPRESS_DEBUG (TYPE_NAME (type)))
full = 0;
}
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 =
(enum typestatus *) xrealloc (typevec,
typevec_len * 2 * sizeof typevec[0]);
bzero ((char *) (typevec + typevec_len),
typevec_len * sizeof typevec[0]);
typevec_len *= 2;
}
}
/* Output the number of this type, to refer to it. */
fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
CHARS (3);
#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)])
{
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 || TYPE_SIZE (type) == 0
/* No way in DBX fmt to describe a variable size. */
|| TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
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)
|| TYPE_SIZE (type) == 0
/* No way in DBX fmt to describe a variable size. */
|| TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
{
typevec[TYPE_SYMTAB_ADDRESS (type)] = 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)] = TYPE_DEFINED;
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. */
fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
CHARS (3);
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%d;0;127;", TYPE_SYMTAB_ADDRESS (type));
else if (use_gnu_debug_info_extensions
&& (TYPE_PRECISION (type) > TYPE_PRECISION (integer_type_node)
|| TYPE_PRECISION (type) > HOST_BITS_PER_WIDE_INT))
{
/* This used to say `r1' and we used to take care
to make sure that `int' was type number 1. */
fprintf (asmfile, "r%d;", TYPE_SYMTAB_ADDRESS (integer_type_node));
print_int_cst_octal (TYPE_MIN_VALUE (type));
fprintf (asmfile, ";");
print_int_cst_octal (TYPE_MAX_VALUE (type));
fprintf (asmfile, ";");
}
else /* Output other integer types as subranges of `int'. */
dbxout_range_type (type);
CHARS (25);
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%d;%d;0;", TYPE_SYMTAB_ADDRESS (integer_type_node),
int_size_in_bytes (type));
CHARS (16);
break;
case CHAR_TYPE:
if (use_gnu_debug_info_extensions)
fprintf (asmfile, "@s%d;-20;",
BITS_PER_UNIT * int_size_in_bytes (type));
else
/* Output the type `char' as a subrange of itself.
That is what pcc seems to do. */
fprintf (asmfile, "r%d;0;%d;", TYPE_SYMTAB_ADDRESS (char_type_node),
TREE_UNSIGNED (type) ? 255 : 127);
CHARS (9);
break;
case BOOLEAN_TYPE:
if (use_gnu_debug_info_extensions)
fprintf (asmfile, "@s%d;-16;",
BITS_PER_UNIT * int_size_in_bytes (type));
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, 0);
break;
case COMPLEX_TYPE:
/* Differs from the REAL_TYPE by its new data type number */
if (TREE_CODE (TREE_TYPE (type)) == REAL_TYPE)
{
fprintf (asmfile, "r%d;%d;0;",
TYPE_SYMTAB_ADDRESS (type),
int_size_in_bytes (TREE_TYPE (type)));
CHARS (15); /* The number is probably incorrect here. */
}
else
{
/* Output a complex integer type as a structure,
pending some other way to do it. */
fprintf (asmfile, "s%d", int_size_in_bytes (type));
fprintf (asmfile, "real:");
CHARS (10);
dbxout_type (TREE_TYPE (type), 0, 0);
fprintf (asmfile, ",%d,%d;",
0, TYPE_PRECISION (TREE_TYPE (type)));
CHARS (8);
fprintf (asmfile, "imag:");
CHARS (5);
dbxout_type (TREE_TYPE (type), 0, 0);
fprintf (asmfile, ",%d,%d;;",
TYPE_PRECISION (TREE_TYPE (type)),
TYPE_PRECISION (TREE_TYPE (type)));
CHARS (9);
}
break;
case SET_TYPE:
if (use_gnu_debug_info_extensions)
{
have_used_extensions = 1;
fprintf (asmfile, "@s%d;",
BITS_PER_UNIT * int_size_in_bytes (type));
/* Check if a bitstring type, which in Chill is
different from a [power]set. */
if (TYPE_STRING_FLAG (type))
fprintf (asmfile, "@S;");
}
putc ('S', asmfile);
CHARS (1);
dbxout_type (TYPE_DOMAIN (type), 0, 0);
break;
case ARRAY_TYPE:
/* 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;");
}
tem = TYPE_DOMAIN (type);
if (tem == NULL)
fprintf (asmfile, "ar%d;0;-1;",
TYPE_SYMTAB_ADDRESS (integer_type_node));
else
{
fprintf (asmfile, "a");
dbxout_range_type (tem);
}
CHARS (17);
dbxout_type (TREE_TYPE (type), 0, 0);
break;
case RECORD_TYPE:
case UNION_TYPE:
case QUAL_UNION_TYPE:
{
int i, n_baseclasses = 0;
if (TYPE_BINFO (type) != 0 && 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)
|| TYPE_SIZE (type) == 0
/* No way in DBX fmt to describe a variable size. */
|| TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
{
/* 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. */
fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "xs" : "xu");
CHARS (3);
#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++);
fprintf (asmfile, ":");
typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
break;
}
/* Identify record or union, and print its size. */
fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "s%d" : "u%d",
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);
fprintf (asmfile, "%d,",
TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT);
CHARS (15);
dbxout_type (BINFO_TYPE (child), 0, 0);
putc (';', asmfile);
}
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);
dbxout_type (BINFO_TYPE (child), full, 0);
fprintf (asmfile, ",%d,%d;",
TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT,
TREE_INT_CST_LOW (DECL_SIZE (TYPE_NAME (BINFO_TYPE (child)))) * BITS_PER_UNIT);
CHARS (20);
}
}
}
CHARS (11);
/* 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);
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);
/* 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);
dbxout_type (DECL_FCONTEXT (TYPE_VFIELD (type)), 0, 0);
}
putc (';', asmfile);
CHARS (3);
}
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)
|| TYPE_SIZE (type) == 0)
{
fprintf (asmfile, "xe");
CHARS (3);
dbxout_type_name (type);
typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
fprintf (asmfile, ":");
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));
putc ('e', asmfile);
CHARS (1);
for (tem = TYPE_VALUES (type); tem; tem = TREE_CHAIN (tem))
{
fprintf (asmfile, "%s:", IDENTIFIER_POINTER (TREE_PURPOSE (tem)));
if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == 0)
fprintf (asmfile, "%lu",
(unsigned long) TREE_INT_CST_LOW (TREE_VALUE (tem)));
else if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == -1
&& TREE_INT_CST_LOW (TREE_VALUE (tem)) < 0)
fprintf (asmfile, "%ld",
(long) TREE_INT_CST_LOW (TREE_VALUE (tem)));
else
print_int_cst_octal (TREE_VALUE (tem));
fprintf (asmfile, ",");
CHARS (20 + IDENTIFIER_LENGTH (TREE_PURPOSE (tem)));
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, 0);
break;
case METHOD_TYPE:
if (use_gnu_debug_info_extensions)
{
have_used_extensions = 1;
putc ('#', asmfile);
CHARS (1);
if (flag_minimal_debug && !show_arg_types)
{
/* Normally, just output the return type.
The argument types are encoded in the method name. */
putc ('#', asmfile);
dbxout_type (TREE_TYPE (type), 0, 0);
putc (';', asmfile);
CHARS (1);
}
else
{
/* When outputting destructors, we need to write
the argument types out longhand. */
dbxout_type (TYPE_METHOD_BASETYPE (type), 0, 0);
putc (',', asmfile);
CHARS (1);
dbxout_type (TREE_TYPE (type), 0, 0);
dbxout_args (TYPE_ARG_TYPES (type));
putc (';', asmfile);
CHARS (1);
}
}
else
{
/* Treat it as a function type. */
dbxout_type (TREE_TYPE (type), 0, 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, 0);
putc (',', asmfile);
CHARS (1);
dbxout_type (TREE_TYPE (type), 0, 0);
}
else
{
/* Should print as an int, because it is really
just an offset. */
dbxout_type (integer_type_node, 0, 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, 0);
break;
case FUNCTION_TYPE:
putc ('f', asmfile);
CHARS (1);
dbxout_type (TREE_TYPE (type), 0, 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));
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");
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", beg, middle);
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", ((value >> (3 * i)) & 7));
}
/* 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)
register 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 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. */
void
dbxout_symbol (decl, local)
tree decl;
int local;
{
tree type = TREE_TYPE (decl);
tree context = NULL_TREE;
/* 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;
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;
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');
current_sym_code = N_FUN;
current_sym_addr = XEXP (DECL_RTL (decl), 0);
if (TREE_TYPE (type))
dbxout_type (TREE_TYPE (type), 0, 0);
else
dbxout_type (void_type_node, 0, 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)] == TYPE_DEFINED
&& TYPE_NAME (TREE_TYPE (decl)) == decl)
return;
#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;
FORCE_TEXT;
{
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. */
&& (!strcmp (lang_identify (), "cplusplus")
/* The following line maybe unnecessary;
in 2.6, try removing it. */
|| DECL_SOURCE_LINE (decl) == 0))
{
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, 0);
dbxout_finish_symbol (NULL_TREE);
}
/* Output typedef name. */
fprintf (asmfile, "%s \"%s:", ASM_STABS_OP,
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)
{
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, 0);
dbxout_finish_symbol (decl);
did_output = 1;
}
/* Don't output a tag if this is an incomplete type (TYPE_SIZE is
zero). This prevents the sun4 Sun OS 4.x dbx from crashing. */
if (tag_needed && TYPE_NAME (type) != 0 && TYPE_SIZE (type) != 0
&& !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, 0);
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, 0);
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 (decl) == 0)
return;
/* 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
&& ! TREE_ASM_WRITTEN (decl)
&& (DECL_FIELD_CONTEXT (decl) == NULL_TREE
|| TREE_CODE (DECL_FIELD_CONTEXT (decl)) == BLOCK))
{
if (TREE_PUBLIC (decl) == 0)
{
/* The sun4 assembler does not grok this. */
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_INT_CST_LOW (DECL_INITIAL (decl));
#ifdef DBX_OUTPUT_CONSTANT_SYMBOL
DBX_OUTPUT_CONSTANT_SYMBOL (asmfile, name, ival);
#else
fprintf (asmfile, "%s \"%s:c=i%d\",0x%x,0,0,0\n",
ASM_STABS_OP, name, ival, N_LSYM);
#endif
return;
}
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. */
}
DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, NULL_RTX);
#ifdef LEAF_REG_REMAP
if (leaf_function)
leaf_renumber_regs_insn (DECL_RTL (decl));
#endif
dbxout_symbol_location (decl, type, 0, DECL_RTL (decl));
}
}
/* 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). */
static void
dbxout_symbol_location (decl, type, suffix, home)
tree decl, type;
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 it's rtl
is not identically the rtl that was used in this
particular compilation. */
if (GET_CODE (home) == REG)
{
regno = REGNO (home);
if (regno >= FIRST_PSEUDO_REGISTER)
return;
}
else if (GET_CODE (home) == SUBREG)
{
rtx value = home;
int offset = 0;
while (GET_CODE (value) == SUBREG)
{
offset += SUBREG_WORD (value);
value = SUBREG_REG (value);
}
if (GET_CODE (value) == REG)
{
regno = REGNO (value);
if (regno >= FIRST_PSEUDO_REGISTER)
return;
regno += offset;
}
alter_subreg (home);
}
/* 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';
if (!DECL_INITIAL (decl))
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
{
/* 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)))
/* 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;
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 = 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;
}
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;
/* 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, 0);
dbxout_finish_symbol (decl);
#ifdef DBX_STATIC_BLOCK_END
DBX_STATIC_BLOCK_END (asmfile, current_sym_code);
#endif
}
/* 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;
char *suffix;
int letter;
{
/* 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. */
char *name;
/* Note also that static member (variable) names DO NOT begin
with underscores in .stabs directives. */
if (DECL_LANG_SPECIFIC (decl))
name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
else
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;
{
#ifdef WINNING_GDB
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. */
void
dbxout_syms (syms)
tree syms;
{
while (syms)
{
dbxout_symbol (syms, 1);
syms = TREE_CHAIN (syms);
}
}
/* 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);
DECL_RTL (parms) = eliminate_regs (DECL_RTL (parms), 0, NULL_RTX);
#ifdef LEAF_REG_REMAP
if (leaf_function)
{
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);
}
if (GET_CODE (DECL_RTL (parms)) == REG
&& REGNO (DECL_RTL (parms)) >= 0
&& REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
else
{
int original_value = current_sym_value;
/* This is the case where the parm is passed as an int or double
and it is converted to a char, short or float and stored back
in the parmlist. In this case, describe the parm
with the variable's declared type, and adjust the address
if the least significant bytes (which we are using) are not
the first ones. */
#if BYTES_BIG_ENDIAN
if (TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
current_sym_value += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
- GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
#endif
if (GET_CODE (DECL_RTL (parms)) == MEM
&& GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
&& GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
&& INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == current_sym_value)
dbxout_type (TREE_TYPE (parms), 0, 0);
else
{
current_sym_value = original_value;
dbxout_type (DECL_ARG_TYPE (parms), 0, 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)) >= 0
&& 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, 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;
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)) >= 0
&& 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)),
DBX_REGPARM_STABS_LETTER);
}
else
{
current_sym_nchars = 8;
fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
DBX_REGPARM_STABS_LETTER);
}
dbxout_type (TREE_TYPE (parms), 0, 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 ...)) or (MEM (MEM ...)),
in which case we use a value of zero. */
if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
|| GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM)
current_sym_value = 0;
else
current_sym_value = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1));
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)),
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, 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))
{
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)) >= 0
&& REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER
&& PARM_PASSED_IN_MEMORY (parms))
dbxout_symbol_location (parms, TREE_TYPE (parms),
0, DECL_RTL (parms));
else if (GET_CODE (DECL_RTL (parms)) == CONCAT
&& PARM_PASSED_IN_MEMORY (parms))
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
&& GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
&& GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
&& PARM_PASSED_IN_MEMORY (parms)
&& ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
{
#if 0 /* ??? It is not clear yet what should replace this. */
int offset = DECL_OFFSET (parms) / BITS_PER_UNIT;
/* A parm declared char is really passed as an int,
so it occupies the least significant bytes.
On a big-endian machine those are not the low-numbered ones. */
#if BYTES_BIG_ENDIAN
if (offset != -1 && TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
offset += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
- GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
#endif
if (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) != offset) {...}
#endif
dbxout_symbol_location (parms, TREE_TYPE (parms),
0, DECL_RTL (parms));
}
#if 0
else if (GET_CODE (DECL_RTL (parms)) == MEM
&& GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG)
{
/* 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. */
current_sym_code = N_RSYM;
/* DECL_RTL looks like (MEM (REG...). Get the register number. */
current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
current_sym_addr = 0;
FORCE_TEXT;
if (DECL_NAME (parms))
{
current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
fprintf (asmfile, "%s \"%s:r", ASM_STABS_OP,
IDENTIFIER_POINTER (DECL_NAME (parms)));
}
else
{
current_sym_nchars = 8;
fprintf (asmfile, "%s \"(anon):r", ASM_STABS_OP);
}
dbxout_type (TREE_TYPE (parms), 0, 0);
dbxout_finish_symbol (parms);
}
#endif
}
}
/* Given a chain of ..._TYPE nodes (as come in a parameter list),
output definitions of those names, in raw form */
void
dbxout_args (args)
tree args;
{
while (args)
{
putc (',', asmfile);
dbxout_type (TREE_VALUE (args), 0, 0);
CHARS (1);
args = TREE_CHAIN (args);
}
}
/* Given a chain of ..._TYPE nodes,
find those which have typedef names and output those names.
This is to ensure those types get output. */
void
dbxout_types (types)
register tree types;
{
while (types)
{
if (TYPE_NAME (types)
&& TREE_CODE (TYPE_NAME (types)) == TYPE_DECL
&& ! TREE_ASM_WRITTEN (TYPE_NAME (types)))
dbxout_symbol (TYPE_NAME (types), 1);
types = TREE_CHAIN (types);
}
}
/* 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)
register tree block;
int depth;
tree args;
{
int blocknum;
while (block)
{
/* Ignore blocks never expanded or otherwise marked as real. */
if (TREE_USED (block))
{
#ifndef DBX_LBRAC_FIRST
/* In dbx format, the syms of a block come before the N_LBRAC. */
if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
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 && debug_info_level != DINFO_LEVEL_TERSE)
{
char buf[20];
blocknum = next_block_number++;
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
fputc ('-', asmfile);
assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
#endif
fprintf (asmfile, "\n");
#endif
}
else if (depth > 0)
/* Count blocks the same way regardless of debug_info_level. */
next_block_number++;
#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 && debug_info_level != DINFO_LEVEL_TERSE)
{
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
fputc ('-', asmfile);
assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
#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. */
static void
dbxout_really_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);
}
/* Called at beginning of output of function definition. */
void
dbxout_begin_function (decl)
tree decl;
{
#ifdef DBX_FUNCTION_FIRST
dbxout_really_begin_function (decl);
#endif
}
/* 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). */
void
dbxout_function (decl)
tree decl;
{
#ifndef DBX_FUNCTION_FIRST
dbxout_really_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
}
#endif /* DBX_DEBUGGING_INFO */
|