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
|
/* Support for printing C and C++ types for GDB, the GNU debugger.
Copyright (C) 1986-2023 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdbsupport/gdb_obstack.h"
#include "bfd.h" /* Binary File Description. */
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "value.h"
#include "gdbcore.h"
#include "target.h"
#include "language.h"
#include "demangle.h"
#include "c-lang.h"
#include "cli/cli-style.h"
#include "typeprint.h"
#include "cp-abi.h"
#include "cp-support.h"
/* A list of access specifiers used for printing. */
enum access_specifier
{
s_none,
s_public,
s_private,
s_protected
};
static void c_type_print_varspec_suffix (struct type *, struct ui_file *, int,
int, int,
enum language,
const struct type_print_options *);
static void c_type_print_varspec_prefix (struct type *,
struct ui_file *,
int, int, int,
enum language,
const struct type_print_options *,
struct print_offset_data *);
/* Print "const", "volatile", or address space modifiers. */
static void c_type_print_modifier (struct type *,
struct ui_file *,
int, int, enum language);
static void c_type_print_base_1 (struct type *type, struct ui_file *stream,
int show, int level, enum language language,
const struct type_print_options *flags,
struct print_offset_data *podata);
/* A callback function for cp_canonicalize_string_full that uses
typedef_hash_table::find_typedef. */
static const char *
find_typedef_for_canonicalize (struct type *t, void *data)
{
return typedef_hash_table::find_typedef
((const struct type_print_options *) data, t);
}
/* Print NAME on STREAM. If the 'raw' field of FLAGS is not set,
canonicalize NAME using the local typedefs first. */
static void
print_name_maybe_canonical (const char *name,
const struct type_print_options *flags,
struct ui_file *stream)
{
gdb::unique_xmalloc_ptr<char> s;
if (!flags->raw)
s = cp_canonicalize_string_full (name,
find_typedef_for_canonicalize,
(void *) flags);
gdb_puts (s != nullptr ? s.get () : name, stream);
}
/* Helper function for c_print_type. */
static void
c_print_type_1 (struct type *type,
const char *varstring,
struct ui_file *stream,
int show, int level,
enum language language,
const struct type_print_options *flags,
struct print_offset_data *podata)
{
enum type_code code;
int demangled_args;
int need_post_space;
const char *local_name;
if (show > 0)
type = check_typedef (type);
local_name = typedef_hash_table::find_typedef (flags, type);
code = type->code ();
if (local_name != NULL)
{
c_type_print_modifier (type, stream, 0, 1, language);
gdb_puts (local_name, stream);
if (varstring != NULL && *varstring != '\0')
gdb_puts (" ", stream);
}
else
{
c_type_print_base_1 (type, stream, show, level, language, flags, podata);
if ((varstring != NULL && *varstring != '\0')
/* Need a space if going to print stars or brackets;
but not if we will print just a type name. */
|| ((show > 0 || type->name () == 0)
&& (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC
|| code == TYPE_CODE_METHOD
|| (code == TYPE_CODE_ARRAY
&& !type->is_vector ())
|| code == TYPE_CODE_MEMBERPTR
|| code == TYPE_CODE_METHODPTR
|| TYPE_IS_REFERENCE (type))))
gdb_puts (" ", stream);
need_post_space = (varstring != NULL && strcmp (varstring, "") != 0);
c_type_print_varspec_prefix (type, stream, show, 0, need_post_space,
language, flags, podata);
}
if (varstring != NULL)
{
if (code == TYPE_CODE_FUNC || code == TYPE_CODE_METHOD)
fputs_styled (varstring, function_name_style.style (), stream);
else
fputs_styled (varstring, variable_name_style.style (), stream);
/* For demangled function names, we have the arglist as part of
the name, so don't print an additional pair of ()'s. */
if (local_name == NULL)
{
demangled_args = strchr (varstring, '(') != NULL;
c_type_print_varspec_suffix (type, stream, show,
0, demangled_args,
language, flags);
}
}
}
/* See c-lang.h. */
void
c_print_type (struct type *type,
const char *varstring,
struct ui_file *stream,
int show, int level,
enum language language,
const struct type_print_options *flags)
{
struct print_offset_data podata (flags);
c_print_type_1 (type, varstring, stream, show, level, language, flags,
&podata);
}
/* Print a typedef using C syntax. TYPE is the underlying type.
NEW_SYMBOL is the symbol naming the type. STREAM is the stream on
which to print. */
void
c_print_typedef (struct type *type,
struct symbol *new_symbol,
struct ui_file *stream)
{
type = check_typedef (type);
gdb_printf (stream, "typedef ");
type_print (type, "", stream, -1);
if ((new_symbol->type ())->name () == 0
|| strcmp ((new_symbol->type ())->name (),
new_symbol->linkage_name ()) != 0
|| new_symbol->type ()->code () == TYPE_CODE_TYPEDEF)
gdb_printf (stream, " %s", new_symbol->print_name ());
gdb_printf (stream, ";");
}
/* If TYPE is a derived type, then print out derivation information.
Print only the actual base classes of this type, not the base
classes of the base classes. I.e. for the derivation hierarchy:
class A { int a; };
class B : public A {int b; };
class C : public B {int c; };
Print the type of class C as:
class C : public B {
int c;
}
Not as the following (like gdb used to), which is not legal C++
syntax for derived types and may be confused with the multiple
inheritance form:
class C : public B : public A {
int c;
}
In general, gdb should try to print the types as closely as
possible to the form that they appear in the source code. */
static void
cp_type_print_derivation_info (struct ui_file *stream,
struct type *type,
const struct type_print_options *flags)
{
const char *name;
int i;
for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
{
stream->wrap_here (8);
gdb_puts (i == 0 ? ": " : ", ", stream);
gdb_printf (stream, "%s%s ",
BASETYPE_VIA_PUBLIC (type, i)
? "public" : (TYPE_FIELD_PROTECTED (type, i)
? "protected" : "private"),
BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
name = TYPE_BASECLASS (type, i)->name ();
if (name)
print_name_maybe_canonical (name, flags, stream);
else
gdb_printf (stream, "(null)");
}
if (i > 0)
{
gdb_puts (" ", stream);
}
}
/* Print the C++ method arguments ARGS to the file STREAM. */
static void
cp_type_print_method_args (struct type *mtype, const char *prefix,
const char *varstring, int staticp,
struct ui_file *stream,
enum language language,
const struct type_print_options *flags)
{
struct field *args = mtype->fields ();
int nargs = mtype->num_fields ();
int varargs = mtype->has_varargs ();
int i;
fprintf_symbol (stream, prefix,
language_cplus, DMGL_ANSI);
fprintf_symbol (stream, varstring,
language_cplus, DMGL_ANSI);
gdb_puts ("(", stream);
int printed_args = 0;
for (i = 0; i < nargs; ++i)
{
if (i == 0 && !staticp)
{
/* Skip the class variable. We keep this here to accommodate older
compilers and debug formats which may not support artificial
parameters. */
continue;
}
struct field arg = args[i];
/* Skip any artificial arguments. */
if (FIELD_ARTIFICIAL (arg))
continue;
if (printed_args > 0)
{
gdb_printf (stream, ", ");
stream->wrap_here (8);
}
c_print_type (arg.type (), "", stream, 0, 0, language, flags);
printed_args++;
}
if (varargs)
{
if (printed_args == 0)
gdb_printf (stream, "...");
else
gdb_printf (stream, ", ...");
}
else if (printed_args == 0)
{
if (language == language_cplus)
gdb_printf (stream, "void");
}
gdb_printf (stream, ")");
/* For non-static methods, read qualifiers from the type of
THIS. */
if (!staticp)
{
struct type *domain;
gdb_assert (nargs > 0);
gdb_assert (args[0].type ()->code () == TYPE_CODE_PTR);
domain = args[0].type ()->target_type ();
if (TYPE_CONST (domain))
gdb_printf (stream, " const");
if (TYPE_VOLATILE (domain))
gdb_printf (stream, " volatile");
if (TYPE_RESTRICT (domain))
gdb_printf (stream, (language == language_cplus
? " __restrict__"
: " restrict"));
if (TYPE_ATOMIC (domain))
gdb_printf (stream, " _Atomic");
}
}
/* Print any asterisks or open-parentheses needed before the
variable name (to describe its type).
On outermost call, pass 0 for PASSED_A_PTR.
On outermost call, SHOW > 0 means should ignore
any typename for TYPE and show its details.
SHOW is always zero on recursive calls.
NEED_POST_SPACE is non-zero when a space will be be needed
between a trailing qualifier and a field, variable, or function
name. */
static void
c_type_print_varspec_prefix (struct type *type,
struct ui_file *stream,
int show, int passed_a_ptr,
int need_post_space,
enum language language,
const struct type_print_options *flags,
struct print_offset_data *podata)
{
const char *name;
if (type == 0)
return;
if (type->name () && show <= 0)
return;
QUIT;
switch (type->code ())
{
case TYPE_CODE_PTR:
c_type_print_varspec_prefix (type->target_type (),
stream, show, 1, 1, language, flags,
podata);
gdb_printf (stream, "*");
c_type_print_modifier (type, stream, 1, need_post_space, language);
break;
case TYPE_CODE_MEMBERPTR:
c_type_print_varspec_prefix (type->target_type (),
stream, show, 0, 0, language, flags, podata);
name = TYPE_SELF_TYPE (type)->name ();
if (name)
print_name_maybe_canonical (name, flags, stream);
else
c_type_print_base_1 (TYPE_SELF_TYPE (type),
stream, -1, passed_a_ptr, language, flags,
podata);
gdb_printf (stream, "::*");
break;
case TYPE_CODE_METHODPTR:
c_type_print_varspec_prefix (type->target_type (),
stream, show, 0, 0, language, flags,
podata);
gdb_printf (stream, "(");
name = TYPE_SELF_TYPE (type)->name ();
if (name)
print_name_maybe_canonical (name, flags, stream);
else
c_type_print_base_1 (TYPE_SELF_TYPE (type),
stream, -1, passed_a_ptr, language, flags,
podata);
gdb_printf (stream, "::*");
break;
case TYPE_CODE_REF:
case TYPE_CODE_RVALUE_REF:
c_type_print_varspec_prefix (type->target_type (),
stream, show, 1, 0, language, flags,
podata);
gdb_printf (stream, type->code () == TYPE_CODE_REF ? "&" : "&&");
c_type_print_modifier (type, stream, 1, need_post_space, language);
break;
case TYPE_CODE_METHOD:
case TYPE_CODE_FUNC:
c_type_print_varspec_prefix (type->target_type (),
stream, show, 0, 0, language, flags,
podata);
if (passed_a_ptr)
gdb_printf (stream, "(");
break;
case TYPE_CODE_ARRAY:
c_type_print_varspec_prefix (type->target_type (),
stream, show, 0, need_post_space,
language, flags, podata);
if (passed_a_ptr)
gdb_printf (stream, "(");
break;
case TYPE_CODE_TYPEDEF:
c_type_print_varspec_prefix (type->target_type (),
stream, show, passed_a_ptr, 0,
language, flags, podata);
break;
}
}
/* Print out "const" and "volatile" attributes,
and address space id if present.
TYPE is a pointer to the type being printed out.
STREAM is the output destination.
NEED_PRE_SPACE = 1 indicates an initial white space is needed.
NEED_POST_SPACE = 1 indicates a final white space is needed. */
static void
c_type_print_modifier (struct type *type, struct ui_file *stream,
int need_pre_space, int need_post_space,
enum language language)
{
int did_print_modifier = 0;
const char *address_space_id;
/* We don't print `const' qualifiers for references --- since all
operators affect the thing referenced, not the reference itself,
every reference is `const'. */
if (TYPE_CONST (type) && !TYPE_IS_REFERENCE (type))
{
if (need_pre_space)
gdb_printf (stream, " ");
gdb_printf (stream, "const");
did_print_modifier = 1;
}
if (TYPE_VOLATILE (type))
{
if (did_print_modifier || need_pre_space)
gdb_printf (stream, " ");
gdb_printf (stream, "volatile");
did_print_modifier = 1;
}
if (TYPE_RESTRICT (type))
{
if (did_print_modifier || need_pre_space)
gdb_printf (stream, " ");
gdb_printf (stream, (language == language_cplus
? "__restrict__"
: "restrict"));
did_print_modifier = 1;
}
if (TYPE_ATOMIC (type))
{
if (did_print_modifier || need_pre_space)
gdb_printf (stream, " ");
gdb_printf (stream, "_Atomic");
did_print_modifier = 1;
}
address_space_id
= address_space_type_instance_flags_to_name (type->arch (),
type->instance_flags ());
if (address_space_id)
{
if (did_print_modifier || need_pre_space)
gdb_printf (stream, " ");
gdb_printf (stream, "@%s", address_space_id);
did_print_modifier = 1;
}
if (did_print_modifier && need_post_space)
gdb_printf (stream, " ");
}
/* Print out the arguments of TYPE, which should have TYPE_CODE_METHOD
or TYPE_CODE_FUNC, to STREAM. Artificial arguments, such as "this"
in non-static methods, are displayed if LINKAGE_NAME is zero. If
LINKAGE_NAME is non-zero and LANGUAGE is language_cplus the topmost
parameter types get removed their possible const and volatile qualifiers to
match demangled linkage name parameters part of such function type.
LANGUAGE is the language in which TYPE was defined. This is a necessary
evil since this code is used by the C and C++. */
void
c_type_print_args (struct type *type, struct ui_file *stream,
int linkage_name, enum language language,
const struct type_print_options *flags)
{
int i;
int printed_any = 0;
gdb_printf (stream, "(");
for (i = 0; i < type->num_fields (); i++)
{
struct type *param_type;
if (TYPE_FIELD_ARTIFICIAL (type, i) && linkage_name)
continue;
if (printed_any)
{
gdb_printf (stream, ", ");
stream->wrap_here (4);
}
param_type = type->field (i).type ();
if (language == language_cplus && linkage_name)
{
/* C++ standard, 13.1 Overloadable declarations, point 3, item:
- Parameter declarations that differ only in the presence or
absence of const and/or volatile are equivalent.
And the const/volatile qualifiers are not present in the mangled
names as produced by GCC. */
param_type = make_cv_type (0, 0, param_type, NULL);
}
c_print_type (param_type, "", stream, -1, 0, language, flags);
printed_any = 1;
}
if (printed_any && type->has_varargs ())
{
/* Print out a trailing ellipsis for varargs functions. Ignore
TYPE_VARARGS if the function has no named arguments; that
represents unprototyped (K&R style) C functions. */
if (printed_any && type->has_varargs ())
{
gdb_printf (stream, ", ");
stream->wrap_here (4);
gdb_printf (stream, "...");
}
}
else if (!printed_any
&& (type->is_prototyped () || language == language_cplus))
gdb_printf (stream, "void");
gdb_printf (stream, ")");
}
/* Return true iff the j'th overloading of the i'th method of TYPE
is a type conversion operator, like `operator int () { ... }'.
When listing a class's methods, we don't print the return type of
such operators. */
static int
is_type_conversion_operator (struct type *type, int i, int j)
{
/* I think the whole idea of recognizing type conversion operators
by their name is pretty terrible. But I don't think our present
data structure gives us any other way to tell. If you know of
some other way, feel free to rewrite this function. */
const char *name = TYPE_FN_FIELDLIST_NAME (type, i);
if (!startswith (name, CP_OPERATOR_STR))
return 0;
name += 8;
if (! strchr (" \t\f\n\r", *name))
return 0;
while (strchr (" \t\f\n\r", *name))
name++;
if (!('a' <= *name && *name <= 'z')
&& !('A' <= *name && *name <= 'Z')
&& *name != '_')
/* If this doesn't look like the start of an identifier, then it
isn't a type conversion operator. */
return 0;
else if (startswith (name, "new"))
name += 3;
else if (startswith (name, "delete"))
name += 6;
else
/* If it doesn't look like new or delete, it's a type conversion
operator. */
return 1;
/* Is that really the end of the name? */
if (('a' <= *name && *name <= 'z')
|| ('A' <= *name && *name <= 'Z')
|| ('0' <= *name && *name <= '9')
|| *name == '_')
/* No, so the identifier following "operator" must be a type name,
and this is a type conversion operator. */
return 1;
/* That was indeed the end of the name, so it was `operator new' or
`operator delete', neither of which are type conversion
operators. */
return 0;
}
/* Given a C++ qualified identifier QID, strip off the qualifiers,
yielding the unqualified name. The return value is a pointer into
the original string.
It's a pity we don't have this information in some more structured
form. Even the author of this function feels that writing little
parsers like this everywhere is stupid. */
static const char *
remove_qualifiers (const char *qid)
{
int quoted = 0; /* Zero if we're not in quotes;
'"' if we're in a double-quoted string;
'\'' if we're in a single-quoted string. */
int depth = 0; /* Number of unclosed parens we've seen. */
char *parenstack = (char *) alloca (strlen (qid));
const char *scan;
const char *last = 0; /* The character after the rightmost
`::' token we've seen so far. */
for (scan = qid; *scan; scan++)
{
if (quoted)
{
if (*scan == quoted)
quoted = 0;
else if (*scan == '\\' && *(scan + 1))
scan++;
}
else if (scan[0] == ':' && scan[1] == ':')
{
/* If we're inside parenthesis (i.e., an argument list) or
angle brackets (i.e., a list of template arguments), then
we don't record the position of this :: token, since it's
not relevant to the top-level structure we're trying to
operate on. */
if (depth == 0)
{
last = scan + 2;
scan++;
}
}
else if (*scan == '"' || *scan == '\'')
quoted = *scan;
else if (*scan == '(')
parenstack[depth++] = ')';
else if (*scan == '[')
parenstack[depth++] = ']';
/* We're going to treat <> as a pair of matching characters,
since we're more likely to see those in template id's than
real less-than characters. What a crock. */
else if (*scan == '<')
parenstack[depth++] = '>';
else if (*scan == ')' || *scan == ']' || *scan == '>')
{
if (depth > 0 && parenstack[depth - 1] == *scan)
depth--;
else
{
/* We're going to do a little error recovery here. If
we don't find a match for *scan on the paren stack,
but there is something lower on the stack that does
match, we pop the stack to that point. */
int i;
for (i = depth - 1; i >= 0; i--)
if (parenstack[i] == *scan)
{
depth = i;
break;
}
}
}
}
if (last)
return last;
else
/* We didn't find any :: tokens at the top level, so declare the
whole thing an unqualified identifier. */
return qid;
}
/* Print any array sizes, function arguments or close parentheses
needed after the variable name (to describe its type).
Args work like c_type_print_varspec_prefix. */
static void
c_type_print_varspec_suffix (struct type *type,
struct ui_file *stream,
int show, int passed_a_ptr,
int demangled_args,
enum language language,
const struct type_print_options *flags)
{
if (type == 0)
return;
if (type->name () && show <= 0)
return;
QUIT;
switch (type->code ())
{
case TYPE_CODE_ARRAY:
{
LONGEST low_bound, high_bound;
int is_vector = type->is_vector ();
if (passed_a_ptr)
gdb_printf (stream, ")");
gdb_printf (stream, (is_vector ?
" __attribute__ ((vector_size(" : "["));
/* Bounds are not yet resolved, print a bounds placeholder instead. */
if (type->bounds ()->high.kind () == PROP_LOCEXPR
|| type->bounds ()->high.kind () == PROP_LOCLIST)
gdb_printf (stream, "variable length");
else if (get_array_bounds (type, &low_bound, &high_bound))
gdb_printf (stream, "%s",
plongest (high_bound - low_bound + 1));
gdb_printf (stream, (is_vector ? ")))" : "]"));
c_type_print_varspec_suffix (type->target_type (), stream,
show, 0, 0, language, flags);
}
break;
case TYPE_CODE_MEMBERPTR:
c_type_print_varspec_suffix (type->target_type (), stream,
show, 0, 0, language, flags);
break;
case TYPE_CODE_METHODPTR:
gdb_printf (stream, ")");
c_type_print_varspec_suffix (type->target_type (), stream,
show, 0, 0, language, flags);
break;
case TYPE_CODE_PTR:
case TYPE_CODE_REF:
case TYPE_CODE_RVALUE_REF:
c_type_print_varspec_suffix (type->target_type (), stream,
show, 1, 0, language, flags);
break;
case TYPE_CODE_METHOD:
case TYPE_CODE_FUNC:
if (passed_a_ptr)
gdb_printf (stream, ")");
if (!demangled_args)
c_type_print_args (type, stream, 0, language, flags);
c_type_print_varspec_suffix (type->target_type (), stream,
show, passed_a_ptr, 0, language, flags);
break;
case TYPE_CODE_TYPEDEF:
c_type_print_varspec_suffix (type->target_type (), stream,
show, passed_a_ptr, 0, language, flags);
break;
}
}
/* A helper for c_type_print_base that displays template
parameters and their bindings, if needed.
TABLE is the local bindings table to use. If NULL, no printing is
done. Note that, at this point, TABLE won't have any useful
information in it -- but it is also used as a flag to
print_name_maybe_canonical to activate searching the global typedef
table.
TYPE is the type whose template arguments are being displayed.
STREAM is the stream on which to print. */
static void
c_type_print_template_args (const struct type_print_options *flags,
struct type *type, struct ui_file *stream,
enum language language)
{
int first = 1, i;
if (flags->raw)
return;
for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (type); ++i)
{
struct symbol *sym = TYPE_TEMPLATE_ARGUMENT (type, i);
if (sym->aclass () != LOC_TYPEDEF)
continue;
if (first)
{
stream->wrap_here (4);
gdb_printf (stream, _("[with %s = "), sym->linkage_name ());
first = 0;
}
else
{
gdb_puts (", ", stream);
stream->wrap_here (9);
gdb_printf (stream, "%s = ", sym->linkage_name ());
}
c_print_type (sym->type (), "", stream, -1, 0, language, flags);
}
if (!first)
gdb_puts (_("] "), stream);
}
/* Use 'print_spaces', but take into consideration the
type_print_options FLAGS in order to determine how many whitespaces
will be printed. */
static void
print_spaces_filtered_with_print_options
(int level, struct ui_file *stream, const struct type_print_options *flags)
{
if (!flags->print_offsets)
print_spaces (level, stream);
else
print_spaces (level + print_offset_data::indentation, stream);
}
/* Output an access specifier to STREAM, if needed. LAST_ACCESS is the
last access specifier output (typically returned by this function). */
static enum access_specifier
output_access_specifier (struct ui_file *stream,
enum access_specifier last_access,
int level, bool is_protected, bool is_private,
const struct type_print_options *flags)
{
if (is_protected)
{
if (last_access != s_protected)
{
last_access = s_protected;
print_spaces_filtered_with_print_options (level + 2, stream, flags);
gdb_printf (stream, "protected:\n");
}
}
else if (is_private)
{
if (last_access != s_private)
{
last_access = s_private;
print_spaces_filtered_with_print_options (level + 2, stream, flags);
gdb_printf (stream, "private:\n");
}
}
else
{
if (last_access != s_public)
{
last_access = s_public;
print_spaces_filtered_with_print_options (level + 2, stream, flags);
gdb_printf (stream, "public:\n");
}
}
return last_access;
}
/* Return true if an access label (i.e., "public:", "private:",
"protected:") needs to be printed for TYPE. */
static bool
need_access_label_p (struct type *type)
{
if (type->is_declared_class ())
{
QUIT;
for (int i = TYPE_N_BASECLASSES (type); i < type->num_fields (); i++)
if (!TYPE_FIELD_PRIVATE (type, i))
return true;
QUIT;
for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
j), i))
return true;
QUIT;
for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
if (!TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
return true;
}
else
{
QUIT;
for (int i = TYPE_N_BASECLASSES (type); i < type->num_fields (); i++)
if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i))
return true;
QUIT;
for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
{
QUIT;
for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
if (TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type,
j), i)
|| TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
j),
i))
return true;
}
QUIT;
for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)
|| TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
return true;
}
return false;
}
/* Helper function that temporarily disables FLAGS->PRINT_OFFSETS,
calls 'c_print_type_1', and then reenables FLAGS->PRINT_OFFSETS if
applicable. */
static void
c_print_type_no_offsets (struct type *type,
const char *varstring,
struct ui_file *stream,
int show, int level,
enum language language,
struct type_print_options *flags,
struct print_offset_data *podata)
{
unsigned int old_po = flags->print_offsets;
/* Temporarily disable print_offsets, because it would mess with
indentation. */
flags->print_offsets = 0;
c_print_type_1 (type, varstring, stream, show, level, language, flags,
podata);
flags->print_offsets = old_po;
}
/* Helper for 'c_type_print_base' that handles structs and unions.
For a description of the arguments, see 'c_type_print_base'. */
static void
c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
int show, int level,
enum language language,
const struct type_print_options *flags,
struct print_offset_data *podata)
{
struct type_print_options local_flags = *flags;
local_flags.local_typedefs = NULL;
std::unique_ptr<typedef_hash_table> hash_holder;
if (!flags->raw)
{
if (flags->local_typedefs)
local_flags.local_typedefs
= new typedef_hash_table (*flags->local_typedefs);
else
local_flags.local_typedefs = new typedef_hash_table ();
hash_holder.reset (local_flags.local_typedefs);
}
c_type_print_modifier (type, stream, 0, 1, language);
if (type->code () == TYPE_CODE_UNION)
gdb_printf (stream, "union ");
else if (type->is_declared_class ())
gdb_printf (stream, "class ");
else
gdb_printf (stream, "struct ");
/* Print the tag if it exists. The HP aCC compiler emits a
spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed
enum}" tag for unnamed struct/union/enum's, which we don't
want to print. */
if (type->name () != NULL
&& !startswith (type->name (), "{unnamed"))
{
/* When printing the tag name, we are still effectively
printing in the outer context, hence the use of FLAGS
here. */
print_name_maybe_canonical (type->name (), flags, stream);
if (show > 0)
gdb_puts (" ", stream);
}
if (show < 0)
{
/* If we just printed a tag name, no need to print anything
else. */
if (type->name () == NULL)
gdb_printf (stream, "{...}");
}
else if (show > 0 || type->name () == NULL)
{
struct type *basetype;
int vptr_fieldno;
c_type_print_template_args (&local_flags, type, stream, language);
/* Add in template parameters when printing derivation info. */
if (local_flags.local_typedefs != NULL)
local_flags.local_typedefs->add_template_parameters (type);
cp_type_print_derivation_info (stream, type, &local_flags);
/* This holds just the global typedefs and the template
parameters. */
struct type_print_options semi_local_flags = *flags;
semi_local_flags.local_typedefs = NULL;
std::unique_ptr<typedef_hash_table> semi_holder;
if (local_flags.local_typedefs != nullptr)
{
semi_local_flags.local_typedefs
= new typedef_hash_table (*local_flags.local_typedefs);
semi_holder.reset (semi_local_flags.local_typedefs);
/* Now add in the local typedefs. */
local_flags.local_typedefs->recursively_update (type);
}
gdb_printf (stream, "{\n");
if (type->num_fields () == 0 && TYPE_NFN_FIELDS (type) == 0
&& TYPE_TYPEDEF_FIELD_COUNT (type) == 0)
{
print_spaces_filtered_with_print_options (level + 4, stream, flags);
if (type->is_stub ())
gdb_printf (stream, _("%p[<incomplete type>%p]\n"),
metadata_style.style ().ptr (), nullptr);
else
gdb_printf (stream, _("%p[<no data fields>%p]\n"),
metadata_style.style ().ptr (), nullptr);
}
/* Start off with no specific section type, so we can print
one for the first field we find, and use that section type
thereafter until we find another type. */
enum access_specifier section_type = s_none;
/* For a class, if all members are private, there's no need
for a "private:" label; similarly, for a struct or union
masquerading as a class, if all members are public, there's
no need for a "public:" label. */
bool need_access_label = need_access_label_p (type);
/* If there is a base class for this type,
do not print the field that it occupies. */
int len = type->num_fields ();
vptr_fieldno = get_vptr_fieldno (type, &basetype);
struct print_offset_data local_podata (flags);
for (int i = TYPE_N_BASECLASSES (type); i < len; i++)
{
QUIT;
/* If we have a virtual table pointer, omit it. Even if
virtual table pointers are not specifically marked in
the debug info, they should be artificial. */
if ((i == vptr_fieldno && type == basetype)
|| TYPE_FIELD_ARTIFICIAL (type, i))
continue;
if (need_access_label)
{
section_type = output_access_specifier
(stream, section_type, level,
TYPE_FIELD_PROTECTED (type, i),
TYPE_FIELD_PRIVATE (type, i), flags);
}
bool is_static = type->field (i).is_static ();
if (flags->print_offsets)
podata->update (type, i, stream);
print_spaces (level + 4, stream);
if (is_static)
gdb_printf (stream, "static ");
int newshow = show - 1;
if (!is_static && flags->print_offsets
&& (type->field (i).type ()->code () == TYPE_CODE_STRUCT
|| type->field (i).type ()->code () == TYPE_CODE_UNION))
{
/* If we're printing offsets and this field's type is
either a struct or an union, then we're interested in
expanding it. */
++newshow;
/* Make sure we carry our offset when we expand the
struct/union. */
local_podata.offset_bitpos
= podata->offset_bitpos + type->field (i).loc_bitpos ();
/* We're entering a struct/union. Right now,
PODATA->END_BITPOS points right *after* the
struct/union. However, when printing the first field
of this inner struct/union, the end_bitpos we're
expecting is exactly at the beginning of the
struct/union. Therefore, we subtract the length of
the whole struct/union. */
local_podata.end_bitpos
= podata->end_bitpos
- type->field (i).type ()->length () * TARGET_CHAR_BIT;
}
c_print_type_1 (type->field (i).type (),
type->field (i).name (),
stream, newshow, level + 4,
language, &local_flags, &local_podata);
if (!is_static && TYPE_FIELD_PACKED (type, i))
{
/* It is a bitfield. This code does not attempt
to look at the bitpos and reconstruct filler,
unnamed fields. This would lead to misleading
results if the compiler does not put out fields
for such things (I don't know what it does). */
gdb_printf (stream, " : %d",
TYPE_FIELD_BITSIZE (type, i));
}
gdb_printf (stream, ";\n");
}
/* If there are both fields and methods, put a blank line
between them. Make sure to count only method that we
will display; artificial methods will be hidden. */
len = TYPE_NFN_FIELDS (type);
if (!flags->print_methods)
len = 0;
int real_len = 0;
for (int i = 0; i < len; i++)
{
struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
int j;
for (j = 0; j < len2; j++)
if (!TYPE_FN_FIELD_ARTIFICIAL (f, j))
real_len++;
}
if (real_len > 0 && section_type != s_none)
gdb_printf (stream, "\n");
/* C++: print out the methods. */
for (int i = 0; i < len; i++)
{
struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
const char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
const char *name = type->name ();
int is_constructor = name && strcmp (method_name,
name) == 0;
for (j = 0; j < len2; j++)
{
const char *mangled_name;
gdb::unique_xmalloc_ptr<char> mangled_name_holder;
const char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
int is_full_physname_constructor =
TYPE_FN_FIELD_CONSTRUCTOR (f, j)
|| is_constructor_name (physname)
|| is_destructor_name (physname)
|| method_name[0] == '~';
/* Do not print out artificial methods. */
if (TYPE_FN_FIELD_ARTIFICIAL (f, j))
continue;
QUIT;
section_type = output_access_specifier
(stream, section_type, level,
TYPE_FN_FIELD_PROTECTED (f, j),
TYPE_FN_FIELD_PRIVATE (f, j), flags);
print_spaces_filtered_with_print_options (level + 4, stream,
flags);
if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
gdb_printf (stream, "virtual ");
else if (TYPE_FN_FIELD_STATIC_P (f, j))
gdb_printf (stream, "static ");
if (TYPE_FN_FIELD_TYPE (f, j)->target_type () == 0)
{
/* Keep GDB from crashing here. */
gdb_printf (stream,
_("%p[<undefined type>%p] %s;\n"),
metadata_style.style ().ptr (), nullptr,
TYPE_FN_FIELD_PHYSNAME (f, j));
break;
}
else if (!is_constructor /* Constructors don't
have declared
types. */
&& !is_full_physname_constructor /* " " */
&& !is_type_conversion_operator (type, i, j))
{
c_print_type_no_offsets
(TYPE_FN_FIELD_TYPE (f, j)->target_type (),
"", stream, -1, 0, language, &local_flags, podata);
gdb_puts (" ", stream);
}
if (TYPE_FN_FIELD_STUB (f, j))
{
/* Build something we can demangle. */
mangled_name_holder.reset (gdb_mangle_name (type, i, j));
mangled_name = mangled_name_holder.get ();
}
else
mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
gdb::unique_xmalloc_ptr<char> demangled_name
= gdb_demangle (mangled_name,
DMGL_ANSI | DMGL_PARAMS);
if (demangled_name == NULL)
{
/* In some cases (for instance with the HP
demangling), if a function has more than 10
arguments, the demangling will fail.
Let's try to reconstruct the function
signature from the symbol information. */
if (!TYPE_FN_FIELD_STUB (f, j))
{
int staticp = TYPE_FN_FIELD_STATIC_P (f, j);
struct type *mtype = TYPE_FN_FIELD_TYPE (f, j);
cp_type_print_method_args (mtype,
"",
method_name,
staticp,
stream, language,
&local_flags);
}
else
fprintf_styled (stream, metadata_style.style (),
_("<badly mangled name '%s'>"),
mangled_name);
}
else
{
const char *p;
const char *demangled_no_class
= remove_qualifiers (demangled_name.get ());
/* Get rid of the `static' appended by the
demangler. */
p = strstr (demangled_no_class, " static");
if (p != NULL)
{
int length = p - demangled_no_class;
std::string demangled_no_static (demangled_no_class,
length);
gdb_puts (demangled_no_static.c_str (), stream);
}
else
gdb_puts (demangled_no_class, stream);
}
gdb_printf (stream, ";\n");
}
}
/* Print out nested types. */
if (TYPE_NESTED_TYPES_COUNT (type) != 0
&& semi_local_flags.print_nested_type_limit != 0)
{
if (semi_local_flags.print_nested_type_limit > 0)
--semi_local_flags.print_nested_type_limit;
if (type->num_fields () != 0 || TYPE_NFN_FIELDS (type) != 0)
gdb_printf (stream, "\n");
for (int i = 0; i < TYPE_NESTED_TYPES_COUNT (type); ++i)
{
print_spaces_filtered_with_print_options (level + 4, stream,
flags);
c_print_type_no_offsets (TYPE_NESTED_TYPES_FIELD_TYPE (type, i),
"", stream, show, level + 4,
language, &semi_local_flags, podata);
gdb_printf (stream, ";\n");
}
}
/* Print typedefs defined in this class. */
if (TYPE_TYPEDEF_FIELD_COUNT (type) != 0 && flags->print_typedefs)
{
if (type->num_fields () != 0 || TYPE_NFN_FIELDS (type) != 0
|| TYPE_NESTED_TYPES_COUNT (type) != 0)
gdb_printf (stream, "\n");
for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); i++)
{
struct type *target = TYPE_TYPEDEF_FIELD_TYPE (type, i);
/* Dereference the typedef declaration itself. */
gdb_assert (target->code () == TYPE_CODE_TYPEDEF);
target = target->target_type ();
if (need_access_label)
{
section_type = output_access_specifier
(stream, section_type, level,
TYPE_TYPEDEF_FIELD_PROTECTED (type, i),
TYPE_TYPEDEF_FIELD_PRIVATE (type, i), flags);
}
print_spaces_filtered_with_print_options (level + 4, stream,
flags);
gdb_printf (stream, "typedef ");
/* We want to print typedefs with substitutions
from the template parameters or globally-known
typedefs but not local typedefs. */
c_print_type_no_offsets (target,
TYPE_TYPEDEF_FIELD_NAME (type, i),
stream, show - 1, level + 4,
language, &semi_local_flags, podata);
gdb_printf (stream, ";\n");
}
}
if (flags->print_offsets)
{
if (show > 0)
podata->finish (type, level, stream);
print_spaces (print_offset_data::indentation, stream);
if (level == 0)
print_spaces (2, stream);
}
gdb_printf (stream, "%*s}", level, "");
}
}
/* Print the name of the type (or the ultimate pointer target,
function value or array element), or the description of a structure
or union.
SHOW positive means print details about the type (e.g. enum
values), and print structure elements passing SHOW - 1 for show.
SHOW negative means just print the type name or struct tag if there
is one. If there is no name, print something sensible but concise
like "struct {...}".
SHOW zero means just print the type name or struct tag if there is
one. If there is no name, print something sensible but not as
concise like "struct {int x; int y;}".
LEVEL is the number of spaces to indent by.
We increase it for some recursive calls. */
static void
c_type_print_base_1 (struct type *type, struct ui_file *stream,
int show, int level,
enum language language,
const struct type_print_options *flags,
struct print_offset_data *podata)
{
int i;
int len;
QUIT;
if (type == NULL)
{
fputs_styled (_("<type unknown>"), metadata_style.style (), stream);
return;
}
/* When SHOW is zero or less, and there is a valid type name, then
always just print the type name directly from the type. */
if (show <= 0
&& type->name () != NULL)
{
c_type_print_modifier (type, stream, 0, 1, language);
/* If we have "typedef struct foo {. . .} bar;" do we want to
print it as "struct foo" or as "bar"? Pick the latter for
C++, because C++ folk tend to expect things like "class5
*foo" rather than "struct class5 *foo". We rather
arbitrarily choose to make language_minimal work in a C-like
way. */
if (language == language_c || language == language_minimal)
{
if (type->code () == TYPE_CODE_UNION)
gdb_printf (stream, "union ");
else if (type->code () == TYPE_CODE_STRUCT)
{
if (type->is_declared_class ())
gdb_printf (stream, "class ");
else
gdb_printf (stream, "struct ");
}
else if (type->code () == TYPE_CODE_ENUM)
gdb_printf (stream, "enum ");
}
print_name_maybe_canonical (type->name (), flags, stream);
return;
}
type = check_typedef (type);
switch (type->code ())
{
case TYPE_CODE_TYPEDEF:
/* If we get here, the typedef doesn't have a name, and we
couldn't resolve type::target_type. Not much we can do. */
gdb_assert (type->name () == NULL);
gdb_assert (type->target_type () == NULL);
fprintf_styled (stream, metadata_style.style (),
_("<unnamed typedef>"));
break;
case TYPE_CODE_FUNC:
case TYPE_CODE_METHOD:
if (type->target_type () == NULL)
type_print_unknown_return_type (stream);
else
c_type_print_base_1 (type->target_type (),
stream, show, level, language, flags, podata);
break;
case TYPE_CODE_ARRAY:
case TYPE_CODE_PTR:
case TYPE_CODE_MEMBERPTR:
case TYPE_CODE_REF:
case TYPE_CODE_RVALUE_REF:
case TYPE_CODE_METHODPTR:
c_type_print_base_1 (type->target_type (),
stream, show, level, language, flags, podata);
break;
case TYPE_CODE_STRUCT:
case TYPE_CODE_UNION:
c_type_print_base_struct_union (type, stream, show, level,
language, flags, podata);
break;
case TYPE_CODE_ENUM:
c_type_print_modifier (type, stream, 0, 1, language);
gdb_printf (stream, "enum ");
if (type->is_declared_class ())
gdb_printf (stream, "class ");
/* Print the tag name if it exists.
The aCC compiler emits a spurious
"{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
tag for unnamed struct/union/enum's, which we don't
want to print. */
if (type->name () != NULL
&& !startswith (type->name (), "{unnamed"))
{
print_name_maybe_canonical (type->name (), flags, stream);
if (show > 0)
gdb_puts (" ", stream);
}
stream->wrap_here (4);
if (show < 0)
{
/* If we just printed a tag name, no need to print anything
else. */
if (type->name () == NULL)
gdb_printf (stream, "{...}");
}
else if (show > 0 || type->name () == NULL)
{
LONGEST lastval = 0;
/* We can't handle this case perfectly, as DWARF does not
tell us whether or not the underlying type was specified
in the source (and other debug formats don't provide this
at all). We choose to print the underlying type, if it
has a name, when in C++ on the theory that it's better to
print too much than too little; but conversely not to
print something egregiously outside the current
language's syntax. */
if (language == language_cplus && type->target_type () != NULL)
{
struct type *underlying = check_typedef (type->target_type ());
if (underlying->name () != NULL)
gdb_printf (stream, ": %s ", underlying->name ());
}
gdb_printf (stream, "{");
len = type->num_fields ();
for (i = 0; i < len; i++)
{
QUIT;
if (i)
gdb_printf (stream, ", ");
stream->wrap_here (4);
fputs_styled (type->field (i).name (),
variable_name_style.style (), stream);
if (lastval != type->field (i).loc_enumval ())
{
gdb_printf (stream, " = %s",
plongest (type->field (i).loc_enumval ()));
lastval = type->field (i).loc_enumval ();
}
lastval++;
}
gdb_printf (stream, "}");
}
break;
case TYPE_CODE_FLAGS:
{
struct type_print_options local_flags = *flags;
local_flags.local_typedefs = NULL;
c_type_print_modifier (type, stream, 0, 1, language);
gdb_printf (stream, "flag ");
print_name_maybe_canonical (type->name (), flags, stream);
if (show > 0)
{
gdb_puts (" ", stream);
gdb_printf (stream, "{\n");
if (type->num_fields () == 0)
{
if (type->is_stub ())
gdb_printf (stream,
_("%*s%p[<incomplete type>%p]\n"),
level + 4, "",
metadata_style.style ().ptr (), nullptr);
else
gdb_printf (stream,
_("%*s%p[<no data fields>%p]\n"),
level + 4, "",
metadata_style.style ().ptr (), nullptr);
}
len = type->num_fields ();
for (i = 0; i < len; i++)
{
QUIT;
print_spaces (level + 4, stream);
/* We pass "show" here and not "show - 1" to get enum types
printed. There's no other way to see them. */
c_print_type_1 (type->field (i).type (),
type->field (i).name (),
stream, show, level + 4,
language, &local_flags, podata);
gdb_printf (stream, " @%s",
plongest (type->field (i).loc_bitpos ()));
if (TYPE_FIELD_BITSIZE (type, i) > 1)
{
gdb_printf (stream, "-%s",
plongest (type->field (i).loc_bitpos ()
+ TYPE_FIELD_BITSIZE (type, i)
- 1));
}
gdb_printf (stream, ";\n");
}
gdb_printf (stream, "%*s}", level, "");
}
}
break;
case TYPE_CODE_VOID:
gdb_printf (stream, "void");
break;
case TYPE_CODE_UNDEF:
gdb_printf (stream, _("struct <unknown>"));
break;
case TYPE_CODE_ERROR:
gdb_printf (stream, "%s", TYPE_ERROR_NAME (type));
break;
case TYPE_CODE_RANGE:
/* This should not occur. */
fprintf_styled (stream, metadata_style.style (), _("<range type>"));
break;
case TYPE_CODE_FIXED_POINT:
print_type_fixed_point (type, stream);
break;
case TYPE_CODE_NAMESPACE:
gdb_puts ("namespace ", stream);
gdb_puts (type->name (), stream);
break;
default:
/* Handle types not explicitly handled by the other cases, such
as fundamental types. For these, just print whatever the
type name is, as recorded in the type itself. If there is no
type name, then complain. */
if (type->name () != NULL)
{
c_type_print_modifier (type, stream, 0, 1, language);
print_name_maybe_canonical (type->name (), flags, stream);
}
else
{
/* At least for dump_symtab, it is important that this not
be an error (). */
fprintf_styled (stream, metadata_style.style (),
_("<invalid type code %d>"), type->code ());
}
break;
}
}
/* See c_type_print_base_1. */
void
c_type_print_base (struct type *type, struct ui_file *stream,
int show, int level,
const struct type_print_options *flags)
{
struct print_offset_data podata (flags);
c_type_print_base_1 (type, stream, show, level,
current_language->la_language, flags, &podata);
}
|