]> Git Repo - binutils.git/blame - gdb/c-typeprint.c
Automatic date update in version.in
[binutils.git] / gdb / c-typeprint.c
CommitLineData
c906108c 1/* Support for printing C and C++ types for GDB, the GNU debugger.
4a94e368 2 Copyright (C) 1986-2022 Free Software Foundation, Inc.
c906108c 3
c5aa993b 4 This file is part of GDB.
c906108c 5
c5aa993b
JM
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
a9762ec7 8 the Free Software Foundation; either version 3 of the License, or
c5aa993b 9 (at your option) any later version.
c906108c 10
c5aa993b
JM
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
c906108c 15
c5aa993b 16 You should have received a copy of the GNU General Public License
a9762ec7 17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
c906108c
SS
18
19#include "defs.h"
bf31fd38 20#include "gdbsupport/gdb_obstack.h"
4de283e4 21#include "bfd.h" /* Binary File Description. */
d55e5aa6 22#include "symtab.h"
4de283e4
TT
23#include "gdbtypes.h"
24#include "expression.h"
25#include "value.h"
26#include "gdbcore.h"
d55e5aa6 27#include "target.h"
4de283e4
TT
28#include "language.h"
29#include "demangle.h"
30#include "c-lang.h"
31#include "cli/cli-style.h"
d55e5aa6 32#include "typeprint.h"
4de283e4
TT
33#include "cp-abi.h"
34#include "cp-support.h"
c906108c 35
c191a687
KS
36/* A list of access specifiers used for printing. */
37
38enum access_specifier
39{
40 s_none,
41 s_public,
42 s_private,
43 s_protected
44};
45
bc8453a7
TT
46static void c_type_print_varspec_suffix (struct type *, struct ui_file *, int,
47 int, int,
c1ec8cea 48 enum language,
bc8453a7
TT
49 const struct type_print_options *);
50
aff410f1
MS
51static void c_type_print_varspec_prefix (struct type *,
52 struct ui_file *,
79d43c61 53 int, int, int,
c1ec8cea 54 enum language,
7c161838
SDJ
55 const struct type_print_options *,
56 struct print_offset_data *);
c906108c 57
aff410f1
MS
58/* Print "const", "volatile", or address space modifiers. */
59static void c_type_print_modifier (struct type *,
60 struct ui_file *,
3293bbaf 61 int, int, enum language);
7c161838
SDJ
62
63static void c_type_print_base_1 (struct type *type, struct ui_file *stream,
c1ec8cea 64 int show, int level, enum language language,
7c161838
SDJ
65 const struct type_print_options *flags,
66 struct print_offset_data *podata);
c5aa993b 67\f
bd69fc68
TT
68
69/* A callback function for cp_canonicalize_string_full that uses
c819b2c0 70 typedef_hash_table::find_typedef. */
bd69fc68
TT
71
72static const char *
73find_typedef_for_canonicalize (struct type *t, void *data)
74{
c819b2c0
TT
75 return typedef_hash_table::find_typedef
76 ((const struct type_print_options *) data, t);
bd69fc68
TT
77}
78
79/* Print NAME on STREAM. If the 'raw' field of FLAGS is not set,
80 canonicalize NAME using the local typedefs first. */
81
82static void
83print_name_maybe_canonical (const char *name,
84 const struct type_print_options *flags,
85 struct ui_file *stream)
86{
596dc4ad 87 gdb::unique_xmalloc_ptr<char> s;
bd69fc68
TT
88
89 if (!flags->raw)
90 s = cp_canonicalize_string_full (name,
91 find_typedef_for_canonicalize,
92 (void *) flags);
93
0426ad51 94 gdb_puts (s != nullptr ? s.get () : name, stream);
bd69fc68
TT
95}
96
97\f
98
7c161838 99/* Helper function for c_print_type. */
c906108c 100
7c161838
SDJ
101static void
102c_print_type_1 (struct type *type,
103 const char *varstring,
104 struct ui_file *stream,
105 int show, int level,
c1ec8cea 106 enum language language,
7c161838
SDJ
107 const struct type_print_options *flags,
108 struct print_offset_data *podata)
c906108c 109{
52f0bd74 110 enum type_code code;
c906108c 111 int demangled_args;
9750e763 112 int need_post_space;
bd69fc68 113 const char *local_name;
c906108c
SS
114
115 if (show > 0)
f168693b 116 type = check_typedef (type);
c906108c 117
c819b2c0 118 local_name = typedef_hash_table::find_typedef (flags, type);
78134374 119 code = type->code ();
bd69fc68
TT
120 if (local_name != NULL)
121 {
999a4952 122 c_type_print_modifier (type, stream, 0, 1, language);
0426ad51 123 gdb_puts (local_name, stream);
bd69fc68 124 if (varstring != NULL && *varstring != '\0')
0426ad51 125 gdb_puts (" ", stream);
bd69fc68
TT
126 }
127 else
128 {
c1ec8cea 129 c_type_print_base_1 (type, stream, show, level, language, flags, podata);
bd69fc68
TT
130 if ((varstring != NULL && *varstring != '\0')
131 /* Need a space if going to print stars or brackets;
132 but not if we will print just a type name. */
7d93a1e0 133 || ((show > 0 || type->name () == 0)
bd69fc68
TT
134 && (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC
135 || code == TYPE_CODE_METHOD
136 || (code == TYPE_CODE_ARRAY
bd63c870 137 && !type->is_vector ())
bd69fc68
TT
138 || code == TYPE_CODE_MEMBERPTR
139 || code == TYPE_CODE_METHODPTR
e1cb3213 140 || TYPE_IS_REFERENCE (type))))
0426ad51 141 gdb_puts (" ", stream);
bd69fc68
TT
142 need_post_space = (varstring != NULL && strcmp (varstring, "") != 0);
143 c_type_print_varspec_prefix (type, stream, show, 0, need_post_space,
c1ec8cea 144 language, flags, podata);
bd69fc68 145 }
c906108c
SS
146
147 if (varstring != NULL)
148 {
ac8c53cc
PW
149 if (code == TYPE_CODE_FUNC || code == TYPE_CODE_METHOD)
150 fputs_styled (varstring, function_name_style.style (), stream);
151 else
3f0cbb04 152 fputs_styled (varstring, variable_name_style.style (), stream);
c906108c 153
aff410f1 154 /* For demangled function names, we have the arglist as part of
dda83cd7 155 the name, so don't print an additional pair of ()'s. */
bd69fc68
TT
156 if (local_name == NULL)
157 {
158 demangled_args = strchr (varstring, '(') != NULL;
159 c_type_print_varspec_suffix (type, stream, show,
160 0, demangled_args,
c1ec8cea 161 language, flags);
bd69fc68 162 }
c906108c
SS
163 }
164}
c5aa993b 165
c1ec8cea
TT
166/* See c-lang.h. */
167
168void
169c_print_type (struct type *type,
170 const char *varstring,
171 struct ui_file *stream,
172 int show, int level,
173 enum language language,
174 const struct type_print_options *flags)
175{
fbb46296 176 struct print_offset_data podata (flags);
c1ec8cea
TT
177
178 c_print_type_1 (type, varstring, stream, show, level, language, flags,
179 &podata);
7c161838
SDJ
180}
181
5c6ce71d
TT
182/* Print a typedef using C syntax. TYPE is the underlying type.
183 NEW_SYMBOL is the symbol naming the type. STREAM is the stream on
184 which to print. */
185
186void
aff410f1
MS
187c_print_typedef (struct type *type,
188 struct symbol *new_symbol,
5c6ce71d
TT
189 struct ui_file *stream)
190{
f168693b 191 type = check_typedef (type);
6cb06a8c 192 gdb_printf (stream, "typedef ");
a8e9d247 193 type_print (type, "", stream, -1);
5f9c5a63
SM
194 if ((new_symbol->type ())->name () == 0
195 || strcmp ((new_symbol->type ())->name (),
987012b8 196 new_symbol->linkage_name ()) != 0
5f9c5a63 197 || new_symbol->type ()->code () == TYPE_CODE_TYPEDEF)
6cb06a8c
TT
198 gdb_printf (stream, " %s", new_symbol->print_name ());
199 gdb_printf (stream, ";");
5c6ce71d
TT
200}
201
c906108c 202/* If TYPE is a derived type, then print out derivation information.
aff410f1
MS
203 Print only the actual base classes of this type, not the base
204 classes of the base classes. I.e. for the derivation hierarchy:
c906108c 205
c5aa993b
JM
206 class A { int a; };
207 class B : public A {int b; };
208 class C : public B {int c; };
c906108c
SS
209
210 Print the type of class C as:
211
c5aa993b
JM
212 class C : public B {
213 int c;
214 }
c906108c 215
aff410f1
MS
216 Not as the following (like gdb used to), which is not legal C++
217 syntax for derived types and may be confused with the multiple
218 inheritance form:
c906108c 219
c5aa993b
JM
220 class C : public B : public A {
221 int c;
222 }
c906108c 223
aff410f1 224 In general, gdb should try to print the types as closely as
62a49610 225 possible to the form that they appear in the source code. */
c906108c
SS
226
227static void
aff410f1 228cp_type_print_derivation_info (struct ui_file *stream,
bd69fc68
TT
229 struct type *type,
230 const struct type_print_options *flags)
c906108c 231{
0d5cff50 232 const char *name;
c906108c
SS
233 int i;
234
235 for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
236 {
1285ce86 237 stream->wrap_here (8);
0426ad51 238 gdb_puts (i == 0 ? ": " : ", ", stream);
6cb06a8c
TT
239 gdb_printf (stream, "%s%s ",
240 BASETYPE_VIA_PUBLIC (type, i)
241 ? "public" : (TYPE_FIELD_PROTECTED (type, i)
242 ? "protected" : "private"),
243 BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
7d93a1e0 244 name = TYPE_BASECLASS (type, i)->name ();
bd69fc68
TT
245 if (name)
246 print_name_maybe_canonical (name, flags, stream);
247 else
6cb06a8c 248 gdb_printf (stream, "(null)");
c906108c
SS
249 }
250 if (i > 0)
251 {
0426ad51 252 gdb_puts (" ", stream);
c906108c
SS
253 }
254}
ad2f7632 255
c906108c 256/* Print the C++ method arguments ARGS to the file STREAM. */
c5aa993b 257
392a587b 258static void
0d5cff50
DE
259cp_type_print_method_args (struct type *mtype, const char *prefix,
260 const char *varstring, int staticp,
6c8702eb 261 struct ui_file *stream,
c1ec8cea 262 enum language language,
6c8702eb 263 const struct type_print_options *flags)
c906108c 264{
80fc5e77 265 struct field *args = mtype->fields ();
1f704f76 266 int nargs = mtype->num_fields ();
a409645d 267 int varargs = mtype->has_varargs ();
c906108c 268 int i;
c5aa993b 269
bed009b9
TT
270 fprintf_symbol (stream, prefix,
271 language_cplus, DMGL_ANSI);
272 fprintf_symbol (stream, varstring,
273 language_cplus, DMGL_ANSI);
0426ad51 274 gdb_puts ("(", stream);
ad2f7632 275
137c886e
TV
276 int printed_args = 0;
277 for (i = 0; i < nargs; ++i)
c906108c 278 {
137c886e 279 if (i == 0 && !staticp)
c5aa993b 280 {
137c886e
TV
281 /* Skip the class variable. We keep this here to accommodate older
282 compilers and debug formats which may not support artificial
283 parameters. */
284 continue;
285 }
5f4d1085 286
137c886e
TV
287 struct field arg = args[i];
288 /* Skip any artificial arguments. */
289 if (FIELD_ARTIFICIAL (arg))
290 continue;
ad2f7632 291
137c886e
TV
292 if (printed_args > 0)
293 {
294 gdb_printf (stream, ", ");
295 stream->wrap_here (8);
c5aa993b 296 }
137c886e
TV
297
298 c_print_type (arg.type (), "", stream, 0, 0, language, flags);
299 printed_args++;
300 }
301
302 if (varargs)
303 {
304 if (printed_args == 0)
305 gdb_printf (stream, "...");
306 else
307 gdb_printf (stream, ", ...");
308 }
309 else if (printed_args == 0)
310 {
311 if (language == language_cplus)
312 gdb_printf (stream, "void");
c906108c 313 }
c5aa993b 314
6cb06a8c 315 gdb_printf (stream, ")");
94af9270
KS
316
317 /* For non-static methods, read qualifiers from the type of
318 THIS. */
319 if (!staticp)
320 {
321 struct type *domain;
322
323 gdb_assert (nargs > 0);
5d14b6e5 324 gdb_assert (args[0].type ()->code () == TYPE_CODE_PTR);
27710edb 325 domain = args[0].type ()->target_type ();
94af9270
KS
326
327 if (TYPE_CONST (domain))
6cb06a8c 328 gdb_printf (stream, " const");
94af9270
KS
329
330 if (TYPE_VOLATILE (domain))
6cb06a8c 331 gdb_printf (stream, " volatile");
06d66ee9
TT
332
333 if (TYPE_RESTRICT (domain))
6cb06a8c
TT
334 gdb_printf (stream, (language == language_cplus
335 ? " __restrict__"
336 : " restrict"));
a2c2acaf
MW
337
338 if (TYPE_ATOMIC (domain))
6cb06a8c 339 gdb_printf (stream, " _Atomic");
94af9270 340 }
c906108c
SS
341}
342
343
344/* Print any asterisks or open-parentheses needed before the
345 variable name (to describe its type).
346
347 On outermost call, pass 0 for PASSED_A_PTR.
348 On outermost call, SHOW > 0 means should ignore
349 any typename for TYPE and show its details.
9750e763
KB
350 SHOW is always zero on recursive calls.
351
352 NEED_POST_SPACE is non-zero when a space will be be needed
353 between a trailing qualifier and a field, variable, or function
354 name. */
c906108c 355
a737a51b 356static void
aff410f1
MS
357c_type_print_varspec_prefix (struct type *type,
358 struct ui_file *stream,
359 int show, int passed_a_ptr,
79d43c61 360 int need_post_space,
c1ec8cea 361 enum language language,
7c161838
SDJ
362 const struct type_print_options *flags,
363 struct print_offset_data *podata)
c906108c 364{
0d5cff50 365 const char *name;
c5504eaf 366
c906108c
SS
367 if (type == 0)
368 return;
369
7d93a1e0 370 if (type->name () && show <= 0)
c906108c
SS
371 return;
372
373 QUIT;
374
78134374 375 switch (type->code ())
c906108c
SS
376 {
377 case TYPE_CODE_PTR:
27710edb 378 c_type_print_varspec_prefix (type->target_type (),
c1ec8cea
TT
379 stream, show, 1, 1, language, flags,
380 podata);
6cb06a8c 381 gdb_printf (stream, "*");
3293bbaf 382 c_type_print_modifier (type, stream, 1, need_post_space, language);
c906108c
SS
383 break;
384
0d5de010 385 case TYPE_CODE_MEMBERPTR:
27710edb 386 c_type_print_varspec_prefix (type->target_type (),
a737d952 387 stream, show, 0, 0, language, flags, podata);
7d93a1e0 388 name = TYPE_SELF_TYPE (type)->name ();
c906108c 389 if (name)
bd69fc68 390 print_name_maybe_canonical (name, flags, stream);
c906108c 391 else
7c161838 392 c_type_print_base_1 (TYPE_SELF_TYPE (type),
c1ec8cea
TT
393 stream, -1, passed_a_ptr, language, flags,
394 podata);
6cb06a8c 395 gdb_printf (stream, "::*");
c906108c
SS
396 break;
397
0d5de010 398 case TYPE_CODE_METHODPTR:
27710edb 399 c_type_print_varspec_prefix (type->target_type (),
c1ec8cea
TT
400 stream, show, 0, 0, language, flags,
401 podata);
6cb06a8c 402 gdb_printf (stream, "(");
7d93a1e0 403 name = TYPE_SELF_TYPE (type)->name ();
0d5de010 404 if (name)
bd69fc68 405 print_name_maybe_canonical (name, flags, stream);
0d5de010 406 else
7c161838 407 c_type_print_base_1 (TYPE_SELF_TYPE (type),
c1ec8cea
TT
408 stream, -1, passed_a_ptr, language, flags,
409 podata);
6cb06a8c 410 gdb_printf (stream, "::*");
c906108c
SS
411 break;
412
413 case TYPE_CODE_REF:
e1cb3213 414 case TYPE_CODE_RVALUE_REF:
27710edb 415 c_type_print_varspec_prefix (type->target_type (),
c1ec8cea
TT
416 stream, show, 1, 0, language, flags,
417 podata);
6cb06a8c 418 gdb_printf (stream, type->code () == TYPE_CODE_REF ? "&" : "&&");
3293bbaf 419 c_type_print_modifier (type, stream, 1, need_post_space, language);
c906108c
SS
420 break;
421
0d5de010 422 case TYPE_CODE_METHOD:
c906108c 423 case TYPE_CODE_FUNC:
27710edb 424 c_type_print_varspec_prefix (type->target_type (),
c1ec8cea
TT
425 stream, show, 0, 0, language, flags,
426 podata);
c906108c 427 if (passed_a_ptr)
6cb06a8c 428 gdb_printf (stream, "(");
c906108c
SS
429 break;
430
431 case TYPE_CODE_ARRAY:
27710edb 432 c_type_print_varspec_prefix (type->target_type (),
77791f9c
AB
433 stream, show, 0, need_post_space,
434 language, flags, podata);
c906108c 435 if (passed_a_ptr)
6cb06a8c 436 gdb_printf (stream, "(");
c906108c
SS
437 break;
438
248f8055 439 case TYPE_CODE_TYPEDEF:
27710edb 440 c_type_print_varspec_prefix (type->target_type (),
c1ec8cea
TT
441 stream, show, passed_a_ptr, 0,
442 language, flags, podata);
248f8055
DJ
443 break;
444
c906108c
SS
445 case TYPE_CODE_UNDEF:
446 case TYPE_CODE_STRUCT:
447 case TYPE_CODE_UNION:
448 case TYPE_CODE_ENUM:
81516450 449 case TYPE_CODE_FLAGS:
c906108c
SS
450 case TYPE_CODE_INT:
451 case TYPE_CODE_FLT:
452 case TYPE_CODE_VOID:
453 case TYPE_CODE_ERROR:
454 case TYPE_CODE_CHAR:
455 case TYPE_CODE_BOOL:
456 case TYPE_CODE_SET:
457 case TYPE_CODE_RANGE:
458 case TYPE_CODE_STRING:
c906108c 459 case TYPE_CODE_COMPLEX:
5c4e30ca 460 case TYPE_CODE_NAMESPACE:
7678ef8f 461 case TYPE_CODE_DECFLOAT:
0c9150e4 462 case TYPE_CODE_FIXED_POINT:
c906108c 463 /* These types need no prefix. They are listed here so that
dda83cd7 464 gcc -Wall will reveal any types that haven't been handled. */
c906108c 465 break;
c4093a6a 466 default:
3d263c1d 467 error (_("type not handled in c_type_print_varspec_prefix()"));
c4093a6a 468 break;
c906108c
SS
469 }
470}
471
64b00020
DE
472/* Print out "const" and "volatile" attributes,
473 and address space id if present.
c906108c
SS
474 TYPE is a pointer to the type being printed out.
475 STREAM is the output destination.
a737a51b
DE
476 NEED_PRE_SPACE = 1 indicates an initial white space is needed.
477 NEED_POST_SPACE = 1 indicates a final white space is needed. */
c906108c
SS
478
479static void
47663de5 480c_type_print_modifier (struct type *type, struct ui_file *stream,
3293bbaf
TT
481 int need_pre_space, int need_post_space,
482 enum language language)
c906108c 483{
47663de5 484 int did_print_modifier = 0;
321432c0 485 const char *address_space_id;
c5aa993b 486
7f0b5c30
JB
487 /* We don't print `const' qualifiers for references --- since all
488 operators affect the thing referenced, not the reference itself,
489 every reference is `const'. */
e1cb3213 490 if (TYPE_CONST (type) && !TYPE_IS_REFERENCE (type))
c906108c
SS
491 {
492 if (need_pre_space)
6cb06a8c
TT
493 gdb_printf (stream, " ");
494 gdb_printf (stream, "const");
47663de5 495 did_print_modifier = 1;
c906108c 496 }
c5aa993b 497
c906108c
SS
498 if (TYPE_VOLATILE (type))
499 {
47663de5 500 if (did_print_modifier || need_pre_space)
6cb06a8c
TT
501 gdb_printf (stream, " ");
502 gdb_printf (stream, "volatile");
47663de5 503 did_print_modifier = 1;
c906108c
SS
504 }
505
06d66ee9
TT
506 if (TYPE_RESTRICT (type))
507 {
508 if (did_print_modifier || need_pre_space)
6cb06a8c
TT
509 gdb_printf (stream, " ");
510 gdb_printf (stream, (language == language_cplus
511 ? "__restrict__"
512 : "restrict"));
06d66ee9
TT
513 did_print_modifier = 1;
514 }
515
a2c2acaf
MW
516 if (TYPE_ATOMIC (type))
517 {
518 if (did_print_modifier || need_pre_space)
6cb06a8c
TT
519 gdb_printf (stream, " ");
520 gdb_printf (stream, "_Atomic");
a2c2acaf
MW
521 did_print_modifier = 1;
522 }
523
69896a2c 524 address_space_id
8ee511af 525 = address_space_type_instance_flags_to_name (type->arch (),
10242f36 526 type->instance_flags ());
47663de5
MS
527 if (address_space_id)
528 {
529 if (did_print_modifier || need_pre_space)
6cb06a8c
TT
530 gdb_printf (stream, " ");
531 gdb_printf (stream, "@%s", address_space_id);
47663de5
MS
532 did_print_modifier = 1;
533 }
534
535 if (did_print_modifier && need_post_space)
6cb06a8c 536 gdb_printf (stream, " ");
c906108c
SS
537}
538
539
0d5de010
DJ
540/* Print out the arguments of TYPE, which should have TYPE_CODE_METHOD
541 or TYPE_CODE_FUNC, to STREAM. Artificial arguments, such as "this"
3167638f
JK
542 in non-static methods, are displayed if LINKAGE_NAME is zero. If
543 LINKAGE_NAME is non-zero and LANGUAGE is language_cplus the topmost
544 parameter types get removed their possible const and volatile qualifiers to
545 match demangled linkage name parameters part of such function type.
546 LANGUAGE is the language in which TYPE was defined. This is a necessary
9c37b5ae 547 evil since this code is used by the C and C++. */
c906108c 548
94af9270
KS
549void
550c_type_print_args (struct type *type, struct ui_file *stream,
79d43c61
TT
551 int linkage_name, enum language language,
552 const struct type_print_options *flags)
c906108c 553{
df54f8eb 554 int i;
0d5de010 555 int printed_any = 0;
c906108c 556
6cb06a8c 557 gdb_printf (stream, "(");
ad2f7632 558
1f704f76 559 for (i = 0; i < type->num_fields (); i++)
0d5de010 560 {
bc9a5551
JK
561 struct type *param_type;
562
3167638f 563 if (TYPE_FIELD_ARTIFICIAL (type, i) && linkage_name)
94af9270
KS
564 continue;
565
0d5de010 566 if (printed_any)
c906108c 567 {
6cb06a8c 568 gdb_printf (stream, ", ");
1285ce86 569 stream->wrap_here (4);
c906108c 570 }
0d5de010 571
940da03e 572 param_type = type->field (i).type ();
bc9a5551 573
3167638f 574 if (language == language_cplus && linkage_name)
bc9a5551
JK
575 {
576 /* C++ standard, 13.1 Overloadable declarations, point 3, item:
577 - Parameter declarations that differ only in the presence or
578 absence of const and/or volatile are equivalent.
579
580 And the const/volatile qualifiers are not present in the mangled
581 names as produced by GCC. */
582
583 param_type = make_cv_type (0, 0, param_type, NULL);
584 }
585
c1ec8cea 586 c_print_type (param_type, "", stream, -1, 0, language, flags);
0d5de010 587 printed_any = 1;
c906108c 588 }
0d5de010 589
a409645d 590 if (printed_any && type->has_varargs ())
c906108c 591 {
0d5de010
DJ
592 /* Print out a trailing ellipsis for varargs functions. Ignore
593 TYPE_VARARGS if the function has no named arguments; that
594 represents unprototyped (K&R style) C functions. */
a409645d 595 if (printed_any && type->has_varargs ())
0d5de010 596 {
6cb06a8c 597 gdb_printf (stream, ", ");
1285ce86 598 stream->wrap_here (4);
6cb06a8c 599 gdb_printf (stream, "...");
0d5de010 600 }
c906108c 601 }
0d5de010 602 else if (!printed_any
7f9f399b 603 && (type->is_prototyped () || language == language_cplus))
6cb06a8c 604 gdb_printf (stream, "void");
c5aa993b 605
6cb06a8c 606 gdb_printf (stream, ")");
c906108c
SS
607}
608
dfcd3bfb
JM
609/* Return true iff the j'th overloading of the i'th method of TYPE
610 is a type conversion operator, like `operator int () { ... }'.
611 When listing a class's methods, we don't print the return type of
612 such operators. */
a737a51b 613
dfcd3bfb
JM
614static int
615is_type_conversion_operator (struct type *type, int i, int j)
616{
617 /* I think the whole idea of recognizing type conversion operators
618 by their name is pretty terrible. But I don't think our present
619 data structure gives us any other way to tell. If you know of
620 some other way, feel free to rewrite this function. */
0d5cff50 621 const char *name = TYPE_FN_FIELDLIST_NAME (type, i);
dfcd3bfb 622
8090b426 623 if (!startswith (name, CP_OPERATOR_STR))
dfcd3bfb
JM
624 return 0;
625
626 name += 8;
627 if (! strchr (" \t\f\n\r", *name))
628 return 0;
629
630 while (strchr (" \t\f\n\r", *name))
631 name++;
632
b0129042
DJ
633 if (!('a' <= *name && *name <= 'z')
634 && !('A' <= *name && *name <= 'Z')
635 && *name != '_')
636 /* If this doesn't look like the start of an identifier, then it
637 isn't a type conversion operator. */
638 return 0;
61012eef 639 else if (startswith (name, "new"))
dfcd3bfb 640 name += 3;
61012eef 641 else if (startswith (name, "delete"))
dfcd3bfb
JM
642 name += 6;
643 else
39c22d1a
JM
644 /* If it doesn't look like new or delete, it's a type conversion
645 operator. */
646 return 1;
dfcd3bfb
JM
647
648 /* Is that really the end of the name? */
649 if (('a' <= *name && *name <= 'z')
650 || ('A' <= *name && *name <= 'Z')
651 || ('0' <= *name && *name <= '9')
652 || *name == '_')
653 /* No, so the identifier following "operator" must be a type name,
654 and this is a type conversion operator. */
655 return 1;
656
657 /* That was indeed the end of the name, so it was `operator new' or
aff410f1
MS
658 `operator delete', neither of which are type conversion
659 operators. */
dfcd3bfb
JM
660 return 0;
661}
662
dfcd3bfb
JM
663/* Given a C++ qualified identifier QID, strip off the qualifiers,
664 yielding the unqualified name. The return value is a pointer into
665 the original string.
666
667 It's a pity we don't have this information in some more structured
668 form. Even the author of this function feels that writing little
669 parsers like this everywhere is stupid. */
a737a51b 670
3456e70c
TT
671static const char *
672remove_qualifiers (const char *qid)
dfcd3bfb 673{
0963b4bd 674 int quoted = 0; /* Zero if we're not in quotes;
aff410f1
MS
675 '"' if we're in a double-quoted string;
676 '\'' if we're in a single-quoted string. */
0963b4bd 677 int depth = 0; /* Number of unclosed parens we've seen. */
dfcd3bfb 678 char *parenstack = (char *) alloca (strlen (qid));
3456e70c
TT
679 const char *scan;
680 const char *last = 0; /* The character after the rightmost
aff410f1 681 `::' token we've seen so far. */
dfcd3bfb
JM
682
683 for (scan = qid; *scan; scan++)
684 {
685 if (quoted)
686 {
687 if (*scan == quoted)
688 quoted = 0;
689 else if (*scan == '\\' && *(scan + 1))
690 scan++;
691 }
692 else if (scan[0] == ':' && scan[1] == ':')
693 {
694 /* If we're inside parenthesis (i.e., an argument list) or
695 angle brackets (i.e., a list of template arguments), then
696 we don't record the position of this :: token, since it's
aff410f1
MS
697 not relevant to the top-level structure we're trying to
698 operate on. */
dfcd3bfb
JM
699 if (depth == 0)
700 {
701 last = scan + 2;
702 scan++;
703 }
704 }
705 else if (*scan == '"' || *scan == '\'')
706 quoted = *scan;
707 else if (*scan == '(')
708 parenstack[depth++] = ')';
709 else if (*scan == '[')
710 parenstack[depth++] = ']';
711 /* We're going to treat <> as a pair of matching characters,
712 since we're more likely to see those in template id's than
713 real less-than characters. What a crock. */
714 else if (*scan == '<')
715 parenstack[depth++] = '>';
716 else if (*scan == ')' || *scan == ']' || *scan == '>')
717 {
718 if (depth > 0 && parenstack[depth - 1] == *scan)
719 depth--;
720 else
721 {
aff410f1
MS
722 /* We're going to do a little error recovery here. If
723 we don't find a match for *scan on the paren stack,
724 but there is something lower on the stack that does
725 match, we pop the stack to that point. */
dfcd3bfb
JM
726 int i;
727
728 for (i = depth - 1; i >= 0; i--)
729 if (parenstack[i] == *scan)
730 {
731 depth = i;
732 break;
733 }
734 }
735 }
736 }
737
738 if (last)
739 return last;
740 else
741 /* We didn't find any :: tokens at the top level, so declare the
742 whole thing an unqualified identifier. */
743 return qid;
744}
745
c906108c
SS
746/* Print any array sizes, function arguments or close parentheses
747 needed after the variable name (to describe its type).
748 Args work like c_type_print_varspec_prefix. */
749
bc8453a7 750static void
aff410f1
MS
751c_type_print_varspec_suffix (struct type *type,
752 struct ui_file *stream,
753 int show, int passed_a_ptr,
79d43c61 754 int demangled_args,
c1ec8cea 755 enum language language,
79d43c61 756 const struct type_print_options *flags)
c906108c
SS
757{
758 if (type == 0)
759 return;
760
7d93a1e0 761 if (type->name () && show <= 0)
c906108c
SS
762 return;
763
764 QUIT;
765
78134374 766 switch (type->code ())
c906108c
SS
767 {
768 case TYPE_CODE_ARRAY:
dbc98a8b
KW
769 {
770 LONGEST low_bound, high_bound;
bd63c870 771 int is_vector = type->is_vector ();
c5aa993b 772
dbc98a8b 773 if (passed_a_ptr)
6cb06a8c 774 gdb_printf (stream, ")");
c5aa993b 775
6cb06a8c
TT
776 gdb_printf (stream, (is_vector ?
777 " __attribute__ ((vector_size(" : "["));
1d42e4c4 778 /* Bounds are not yet resolved, print a bounds placeholder instead. */
cf88be68
SM
779 if (type->bounds ()->high.kind () == PROP_LOCEXPR
780 || type->bounds ()->high.kind () == PROP_LOCLIST)
6cb06a8c 781 gdb_printf (stream, "variable length");
1d42e4c4 782 else if (get_array_bounds (type, &low_bound, &high_bound))
6cb06a8c
TT
783 gdb_printf (stream, "%s",
784 plongest (high_bound - low_bound + 1));
785 gdb_printf (stream, (is_vector ? ")))" : "]"));
dbc98a8b 786
27710edb 787 c_type_print_varspec_suffix (type->target_type (), stream,
c1ec8cea 788 show, 0, 0, language, flags);
dbc98a8b 789 }
c906108c
SS
790 break;
791
0d5de010 792 case TYPE_CODE_MEMBERPTR:
27710edb 793 c_type_print_varspec_suffix (type->target_type (), stream,
c1ec8cea 794 show, 0, 0, language, flags);
c906108c
SS
795 break;
796
0d5de010 797 case TYPE_CODE_METHODPTR:
6cb06a8c 798 gdb_printf (stream, ")");
27710edb 799 c_type_print_varspec_suffix (type->target_type (), stream,
c1ec8cea 800 show, 0, 0, language, flags);
c906108c
SS
801 break;
802
803 case TYPE_CODE_PTR:
804 case TYPE_CODE_REF:
e1cb3213 805 case TYPE_CODE_RVALUE_REF:
27710edb 806 c_type_print_varspec_suffix (type->target_type (), stream,
c1ec8cea 807 show, 1, 0, language, flags);
c906108c
SS
808 break;
809
0d5de010 810 case TYPE_CODE_METHOD:
c906108c
SS
811 case TYPE_CODE_FUNC:
812 if (passed_a_ptr)
6cb06a8c 813 gdb_printf (stream, ")");
c906108c 814 if (!demangled_args)
c1ec8cea 815 c_type_print_args (type, stream, 0, language, flags);
27710edb 816 c_type_print_varspec_suffix (type->target_type (), stream,
c1ec8cea 817 show, passed_a_ptr, 0, language, flags);
248f8055
DJ
818 break;
819
820 case TYPE_CODE_TYPEDEF:
27710edb 821 c_type_print_varspec_suffix (type->target_type (), stream,
c1ec8cea 822 show, passed_a_ptr, 0, language, flags);
c906108c
SS
823 break;
824
825 case TYPE_CODE_UNDEF:
826 case TYPE_CODE_STRUCT:
827 case TYPE_CODE_UNION:
81516450 828 case TYPE_CODE_FLAGS:
c906108c
SS
829 case TYPE_CODE_ENUM:
830 case TYPE_CODE_INT:
831 case TYPE_CODE_FLT:
832 case TYPE_CODE_VOID:
833 case TYPE_CODE_ERROR:
834 case TYPE_CODE_CHAR:
835 case TYPE_CODE_BOOL:
836 case TYPE_CODE_SET:
837 case TYPE_CODE_RANGE:
838 case TYPE_CODE_STRING:
c906108c 839 case TYPE_CODE_COMPLEX:
5c4e30ca 840 case TYPE_CODE_NAMESPACE:
7678ef8f 841 case TYPE_CODE_DECFLOAT:
0c9150e4 842 case TYPE_CODE_FIXED_POINT:
c906108c 843 /* These types do not need a suffix. They are listed so that
dda83cd7
SM
844 gcc -Wall will report types that may not have been
845 considered. */
c906108c 846 break;
c4093a6a 847 default:
3d263c1d 848 error (_("type not handled in c_type_print_varspec_suffix()"));
c4093a6a 849 break;
c906108c
SS
850 }
851}
852
bd69fc68
TT
853/* A helper for c_type_print_base that displays template
854 parameters and their bindings, if needed.
855
856 TABLE is the local bindings table to use. If NULL, no printing is
857 done. Note that, at this point, TABLE won't have any useful
858 information in it -- but it is also used as a flag to
859 print_name_maybe_canonical to activate searching the global typedef
860 table.
861
862 TYPE is the type whose template arguments are being displayed.
863
864 STREAM is the stream on which to print. */
865
866static void
867c_type_print_template_args (const struct type_print_options *flags,
1c6fbf42
PA
868 struct type *type, struct ui_file *stream,
869 enum language language)
bd69fc68
TT
870{
871 int first = 1, i;
872
873 if (flags->raw)
874 return;
875
876 for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (type); ++i)
877 {
878 struct symbol *sym = TYPE_TEMPLATE_ARGUMENT (type, i);
879
66d7f48f 880 if (sym->aclass () != LOC_TYPEDEF)
bd69fc68
TT
881 continue;
882
883 if (first)
884 {
1285ce86 885 stream->wrap_here (4);
6cb06a8c 886 gdb_printf (stream, _("[with %s = "), sym->linkage_name ());
bd69fc68
TT
887 first = 0;
888 }
889 else
890 {
0426ad51 891 gdb_puts (", ", stream);
1285ce86 892 stream->wrap_here (9);
6cb06a8c 893 gdb_printf (stream, "%s = ", sym->linkage_name ());
bd69fc68
TT
894 }
895
1c6fbf42 896 c_print_type (sym->type (), "", stream, -1, 0, language, flags);
bd69fc68
TT
897 }
898
899 if (!first)
0426ad51 900 gdb_puts (_("] "), stream);
bd69fc68
TT
901}
902
d0b1020b 903/* Use 'print_spaces', but take into consideration the
7c161838
SDJ
904 type_print_options FLAGS in order to determine how many whitespaces
905 will be printed. */
906
907static void
908print_spaces_filtered_with_print_options
909 (int level, struct ui_file *stream, const struct type_print_options *flags)
910{
911 if (!flags->print_offsets)
d0b1020b 912 print_spaces (level, stream);
7c161838 913 else
d0b1020b 914 print_spaces (level + print_offset_data::indentation, stream);
7c161838
SDJ
915}
916
c191a687
KS
917/* Output an access specifier to STREAM, if needed. LAST_ACCESS is the
918 last access specifier output (typically returned by this function). */
919
920static enum access_specifier
921output_access_specifier (struct ui_file *stream,
922 enum access_specifier last_access,
7c161838
SDJ
923 int level, bool is_protected, bool is_private,
924 const struct type_print_options *flags)
c191a687
KS
925{
926 if (is_protected)
927 {
928 if (last_access != s_protected)
929 {
930 last_access = s_protected;
7c161838 931 print_spaces_filtered_with_print_options (level + 2, stream, flags);
6cb06a8c 932 gdb_printf (stream, "protected:\n");
c191a687
KS
933 }
934 }
935 else if (is_private)
936 {
937 if (last_access != s_private)
938 {
939 last_access = s_private;
7c161838 940 print_spaces_filtered_with_print_options (level + 2, stream, flags);
6cb06a8c 941 gdb_printf (stream, "private:\n");
c191a687
KS
942 }
943 }
944 else
945 {
946 if (last_access != s_public)
947 {
948 last_access = s_public;
7c161838 949 print_spaces_filtered_with_print_options (level + 2, stream, flags);
6cb06a8c 950 gdb_printf (stream, "public:\n");
c191a687
KS
951 }
952 }
953
954 return last_access;
955}
956
7c161838 957/* Return true if an access label (i.e., "public:", "private:",
a27ed7d6
SDJ
958 "protected:") needs to be printed for TYPE. */
959
960static bool
961need_access_label_p (struct type *type)
962{
3bc440a2 963 if (type->is_declared_class ())
a27ed7d6
SDJ
964 {
965 QUIT;
1f704f76 966 for (int i = TYPE_N_BASECLASSES (type); i < type->num_fields (); i++)
a27ed7d6
SDJ
967 if (!TYPE_FIELD_PRIVATE (type, i))
968 return true;
969 QUIT;
970 for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
971 for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
972 if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
973 j), i))
974 return true;
975 QUIT;
976 for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
977 if (!TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
978 return true;
979 }
980 else
981 {
982 QUIT;
1f704f76 983 for (int i = TYPE_N_BASECLASSES (type); i < type->num_fields (); i++)
a27ed7d6
SDJ
984 if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i))
985 return true;
986 QUIT;
987 for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
988 {
989 QUIT;
990 for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
991 if (TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type,
992 j), i)
993 || TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
994 j),
995 i))
996 return true;
997 }
998 QUIT;
999 for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
1000 if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)
1001 || TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
1002 return true;
1003 }
1004
1005 return false;
1006}
1007
7c161838
SDJ
1008/* Helper function that temporarily disables FLAGS->PRINT_OFFSETS,
1009 calls 'c_print_type_1', and then reenables FLAGS->PRINT_OFFSETS if
1010 applicable. */
1011
1012static void
1013c_print_type_no_offsets (struct type *type,
1014 const char *varstring,
1015 struct ui_file *stream,
1016 int show, int level,
c1ec8cea 1017 enum language language,
7c161838
SDJ
1018 struct type_print_options *flags,
1019 struct print_offset_data *podata)
1020{
1021 unsigned int old_po = flags->print_offsets;
1022
1023 /* Temporarily disable print_offsets, because it would mess with
1024 indentation. */
1025 flags->print_offsets = 0;
c1ec8cea
TT
1026 c_print_type_1 (type, varstring, stream, show, level, language, flags,
1027 podata);
7c161838
SDJ
1028 flags->print_offsets = old_po;
1029}
1030
a27ed7d6
SDJ
1031/* Helper for 'c_type_print_base' that handles structs and unions.
1032 For a description of the arguments, see 'c_type_print_base'. */
1033
1034static void
1035c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
1036 int show, int level,
c1ec8cea 1037 enum language language,
7c161838
SDJ
1038 const struct type_print_options *flags,
1039 struct print_offset_data *podata)
a27ed7d6
SDJ
1040{
1041 struct type_print_options local_flags = *flags;
a27ed7d6 1042 local_flags.local_typedefs = NULL;
a27ed7d6 1043
c819b2c0 1044 std::unique_ptr<typedef_hash_table> hash_holder;
a27ed7d6
SDJ
1045 if (!flags->raw)
1046 {
1047 if (flags->local_typedefs)
1048 local_flags.local_typedefs
c819b2c0 1049 = new typedef_hash_table (*flags->local_typedefs);
a27ed7d6 1050 else
c819b2c0 1051 local_flags.local_typedefs = new typedef_hash_table ();
a27ed7d6 1052
c819b2c0 1053 hash_holder.reset (local_flags.local_typedefs);
a27ed7d6
SDJ
1054 }
1055
3293bbaf 1056 c_type_print_modifier (type, stream, 0, 1, language);
78134374 1057 if (type->code () == TYPE_CODE_UNION)
6cb06a8c 1058 gdb_printf (stream, "union ");
3bc440a2 1059 else if (type->is_declared_class ())
6cb06a8c 1060 gdb_printf (stream, "class ");
a27ed7d6 1061 else
6cb06a8c 1062 gdb_printf (stream, "struct ");
a27ed7d6
SDJ
1063
1064 /* Print the tag if it exists. The HP aCC compiler emits a
1065 spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed
1066 enum}" tag for unnamed struct/union/enum's, which we don't
1067 want to print. */
7d93a1e0
SM
1068 if (type->name () != NULL
1069 && !startswith (type->name (), "{unnamed"))
a27ed7d6
SDJ
1070 {
1071 /* When printing the tag name, we are still effectively
1072 printing in the outer context, hence the use of FLAGS
1073 here. */
7d93a1e0 1074 print_name_maybe_canonical (type->name (), flags, stream);
a27ed7d6 1075 if (show > 0)
0426ad51 1076 gdb_puts (" ", stream);
a27ed7d6
SDJ
1077 }
1078
1079 if (show < 0)
1080 {
1081 /* If we just printed a tag name, no need to print anything
1082 else. */
7d93a1e0 1083 if (type->name () == NULL)
6cb06a8c 1084 gdb_printf (stream, "{...}");
a27ed7d6 1085 }
7d93a1e0 1086 else if (show > 0 || type->name () == NULL)
a27ed7d6
SDJ
1087 {
1088 struct type *basetype;
1089 int vptr_fieldno;
1090
1c6fbf42 1091 c_type_print_template_args (&local_flags, type, stream, language);
a27ed7d6
SDJ
1092
1093 /* Add in template parameters when printing derivation info. */
c819b2c0
TT
1094 if (local_flags.local_typedefs != NULL)
1095 local_flags.local_typedefs->add_template_parameters (type);
a27ed7d6
SDJ
1096 cp_type_print_derivation_info (stream, type, &local_flags);
1097
1098 /* This holds just the global typedefs and the template
1099 parameters. */
c819b2c0
TT
1100 struct type_print_options semi_local_flags = *flags;
1101 semi_local_flags.local_typedefs = NULL;
a27ed7d6 1102
c819b2c0
TT
1103 std::unique_ptr<typedef_hash_table> semi_holder;
1104 if (local_flags.local_typedefs != nullptr)
1105 {
1106 semi_local_flags.local_typedefs
1107 = new typedef_hash_table (*local_flags.local_typedefs);
1108 semi_holder.reset (semi_local_flags.local_typedefs);
1109
1110 /* Now add in the local typedefs. */
1111 local_flags.local_typedefs->recursively_update (type);
1112 }
a27ed7d6 1113
6cb06a8c 1114 gdb_printf (stream, "{\n");
7c161838 1115
1f704f76 1116 if (type->num_fields () == 0 && TYPE_NFN_FIELDS (type) == 0
a27ed7d6
SDJ
1117 && TYPE_TYPEDEF_FIELD_COUNT (type) == 0)
1118 {
432ce4cf 1119 print_spaces_filtered_with_print_options (level + 4, stream, flags);
e46d3488 1120 if (type->is_stub ())
6cb06a8c
TT
1121 gdb_printf (stream, _("%p[<incomplete type>%p]\n"),
1122 metadata_style.style ().ptr (), nullptr);
a27ed7d6 1123 else
6cb06a8c
TT
1124 gdb_printf (stream, _("%p[<no data fields>%p]\n"),
1125 metadata_style.style ().ptr (), nullptr);
a27ed7d6
SDJ
1126 }
1127
1128 /* Start off with no specific section type, so we can print
1129 one for the first field we find, and use that section type
1130 thereafter until we find another type. */
1131
1132 enum access_specifier section_type = s_none;
1133
1134 /* For a class, if all members are private, there's no need
1135 for a "private:" label; similarly, for a struct or union
1136 masquerading as a class, if all members are public, there's
1137 no need for a "public:" label. */
1138 bool need_access_label = need_access_label_p (type);
1139
1140 /* If there is a base class for this type,
1141 do not print the field that it occupies. */
1142
1f704f76 1143 int len = type->num_fields ();
a27ed7d6 1144 vptr_fieldno = get_vptr_fieldno (type, &basetype);
7c161838 1145
fbb46296 1146 struct print_offset_data local_podata (flags);
7c161838 1147
a27ed7d6
SDJ
1148 for (int i = TYPE_N_BASECLASSES (type); i < len; i++)
1149 {
1150 QUIT;
1151
1152 /* If we have a virtual table pointer, omit it. Even if
1153 virtual table pointers are not specifically marked in
1154 the debug info, they should be artificial. */
1155 if ((i == vptr_fieldno && type == basetype)
1156 || TYPE_FIELD_ARTIFICIAL (type, i))
1157 continue;
1158
1159 if (need_access_label)
1160 {
1161 section_type = output_access_specifier
1162 (stream, section_type, level,
1163 TYPE_FIELD_PROTECTED (type, i),
7c161838
SDJ
1164 TYPE_FIELD_PRIVATE (type, i), flags);
1165 }
1166
ceacbf6e 1167 bool is_static = field_is_static (&type->field (i));
7c161838
SDJ
1168
1169 if (flags->print_offsets)
e0c547d1 1170 podata->update (type, i, stream);
a27ed7d6 1171
d0b1020b 1172 print_spaces (level + 4, stream);
7c161838 1173 if (is_static)
6cb06a8c 1174 gdb_printf (stream, "static ");
7c161838
SDJ
1175
1176 int newshow = show - 1;
1177
16ff70dd 1178 if (!is_static && flags->print_offsets
940da03e
SM
1179 && (type->field (i).type ()->code () == TYPE_CODE_STRUCT
1180 || type->field (i).type ()->code () == TYPE_CODE_UNION))
7c161838
SDJ
1181 {
1182 /* If we're printing offsets and this field's type is
1183 either a struct or an union, then we're interested in
1184 expanding it. */
1185 ++newshow;
1186
1187 /* Make sure we carry our offset when we expand the
1188 struct/union. */
1189 local_podata.offset_bitpos
b610c045 1190 = podata->offset_bitpos + type->field (i).loc_bitpos ();
7c161838
SDJ
1191 /* We're entering a struct/union. Right now,
1192 PODATA->END_BITPOS points right *after* the
1193 struct/union. However, when printing the first field
1194 of this inner struct/union, the end_bitpos we're
1195 expecting is exactly at the beginning of the
1196 struct/union. Therefore, we subtract the length of
1197 the whole struct/union. */
1198 local_podata.end_bitpos
1199 = podata->end_bitpos
df86565b 1200 - type->field (i).type ()->length () * TARGET_CHAR_BIT;
7c161838
SDJ
1201 }
1202
940da03e 1203 c_print_type_1 (type->field (i).type (),
33d16dd9 1204 type->field (i).name (),
7c161838 1205 stream, newshow, level + 4,
c1ec8cea 1206 language, &local_flags, &local_podata);
7c161838
SDJ
1207
1208 if (!is_static && TYPE_FIELD_PACKED (type, i))
a27ed7d6
SDJ
1209 {
1210 /* It is a bitfield. This code does not attempt
1211 to look at the bitpos and reconstruct filler,
1212 unnamed fields. This would lead to misleading
1213 results if the compiler does not put out fields
1214 for such things (I don't know what it does). */
6cb06a8c
TT
1215 gdb_printf (stream, " : %d",
1216 TYPE_FIELD_BITSIZE (type, i));
a27ed7d6 1217 }
6cb06a8c 1218 gdb_printf (stream, ";\n");
a27ed7d6
SDJ
1219 }
1220
1221 /* If there are both fields and methods, put a blank line
1222 between them. Make sure to count only method that we
1223 will display; artificial methods will be hidden. */
1224 len = TYPE_NFN_FIELDS (type);
1225 if (!flags->print_methods)
1226 len = 0;
1227 int real_len = 0;
1228 for (int i = 0; i < len; i++)
1229 {
1230 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
1231 int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
1232 int j;
1233
1234 for (j = 0; j < len2; j++)
1235 if (!TYPE_FN_FIELD_ARTIFICIAL (f, j))
1236 real_len++;
1237 }
1238 if (real_len > 0 && section_type != s_none)
6cb06a8c 1239 gdb_printf (stream, "\n");
a27ed7d6
SDJ
1240
1241 /* C++: print out the methods. */
1242 for (int i = 0; i < len; i++)
1243 {
1244 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
1245 int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
1246 const char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
7d93a1e0 1247 const char *name = type->name ();
a27ed7d6
SDJ
1248 int is_constructor = name && strcmp (method_name,
1249 name) == 0;
1250
1251 for (j = 0; j < len2; j++)
1252 {
1253 const char *mangled_name;
1254 gdb::unique_xmalloc_ptr<char> mangled_name_holder;
a27ed7d6
SDJ
1255 const char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
1256 int is_full_physname_constructor =
1257 TYPE_FN_FIELD_CONSTRUCTOR (f, j)
1258 || is_constructor_name (physname)
1259 || is_destructor_name (physname)
1260 || method_name[0] == '~';
1261
1262 /* Do not print out artificial methods. */
1263 if (TYPE_FN_FIELD_ARTIFICIAL (f, j))
1264 continue;
1265
1266 QUIT;
1267 section_type = output_access_specifier
1268 (stream, section_type, level,
1269 TYPE_FN_FIELD_PROTECTED (f, j),
7c161838 1270 TYPE_FN_FIELD_PRIVATE (f, j), flags);
a27ed7d6 1271
7c161838
SDJ
1272 print_spaces_filtered_with_print_options (level + 4, stream,
1273 flags);
a27ed7d6 1274 if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
6cb06a8c 1275 gdb_printf (stream, "virtual ");
a27ed7d6 1276 else if (TYPE_FN_FIELD_STATIC_P (f, j))
6cb06a8c 1277 gdb_printf (stream, "static ");
27710edb 1278 if (TYPE_FN_FIELD_TYPE (f, j)->target_type () == 0)
a27ed7d6
SDJ
1279 {
1280 /* Keep GDB from crashing here. */
6cb06a8c
TT
1281 gdb_printf (stream,
1282 _("%p[<undefined type>%p] %s;\n"),
1283 metadata_style.style ().ptr (), nullptr,
1284 TYPE_FN_FIELD_PHYSNAME (f, j));
a27ed7d6
SDJ
1285 break;
1286 }
1287 else if (!is_constructor /* Constructors don't
1288 have declared
1289 types. */
1290 && !is_full_physname_constructor /* " " */
1291 && !is_type_conversion_operator (type, i, j))
1292 {
7c161838 1293 c_print_type_no_offsets
27710edb 1294 (TYPE_FN_FIELD_TYPE (f, j)->target_type (),
c1ec8cea 1295 "", stream, -1, 0, language, &local_flags, podata);
7c161838 1296
0426ad51 1297 gdb_puts (" ", stream);
a27ed7d6
SDJ
1298 }
1299 if (TYPE_FN_FIELD_STUB (f, j))
1300 {
1301 /* Build something we can demangle. */
1302 mangled_name_holder.reset (gdb_mangle_name (type, i, j));
1303 mangled_name = mangled_name_holder.get ();
1304 }
1305 else
1306 mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
1307
3456e70c
TT
1308 gdb::unique_xmalloc_ptr<char> demangled_name
1309 = gdb_demangle (mangled_name,
1310 DMGL_ANSI | DMGL_PARAMS);
a27ed7d6
SDJ
1311 if (demangled_name == NULL)
1312 {
1313 /* In some cases (for instance with the HP
1314 demangling), if a function has more than 10
1315 arguments, the demangling will fail.
1316 Let's try to reconstruct the function
1317 signature from the symbol information. */
1318 if (!TYPE_FN_FIELD_STUB (f, j))
1319 {
1320 int staticp = TYPE_FN_FIELD_STATIC_P (f, j);
1321 struct type *mtype = TYPE_FN_FIELD_TYPE (f, j);
1322
1323 cp_type_print_method_args (mtype,
1324 "",
1325 method_name,
1326 staticp,
c1ec8cea
TT
1327 stream, language,
1328 &local_flags);
a27ed7d6
SDJ
1329 }
1330 else
7f6aba03
TT
1331 fprintf_styled (stream, metadata_style.style (),
1332 _("<badly mangled name '%s'>"),
1333 mangled_name);
a27ed7d6
SDJ
1334 }
1335 else
1336 {
3456e70c
TT
1337 const char *p;
1338 const char *demangled_no_class
1339 = remove_qualifiers (demangled_name.get ());
a27ed7d6
SDJ
1340
1341 /* Get rid of the `static' appended by the
1342 demangler. */
1343 p = strstr (demangled_no_class, " static");
1344 if (p != NULL)
1345 {
1346 int length = p - demangled_no_class;
3456e70c
TT
1347 std::string demangled_no_static (demangled_no_class,
1348 length);
0426ad51 1349 gdb_puts (demangled_no_static.c_str (), stream);
a27ed7d6
SDJ
1350 }
1351 else
0426ad51 1352 gdb_puts (demangled_no_class, stream);
a27ed7d6
SDJ
1353 }
1354
6cb06a8c 1355 gdb_printf (stream, ";\n");
a27ed7d6
SDJ
1356 }
1357 }
1358
1359 /* Print out nested types. */
1360 if (TYPE_NESTED_TYPES_COUNT (type) != 0
1361 && semi_local_flags.print_nested_type_limit != 0)
1362 {
1363 if (semi_local_flags.print_nested_type_limit > 0)
1364 --semi_local_flags.print_nested_type_limit;
1365
1f704f76 1366 if (type->num_fields () != 0 || TYPE_NFN_FIELDS (type) != 0)
6cb06a8c 1367 gdb_printf (stream, "\n");
a27ed7d6
SDJ
1368
1369 for (int i = 0; i < TYPE_NESTED_TYPES_COUNT (type); ++i)
1370 {
7c161838
SDJ
1371 print_spaces_filtered_with_print_options (level + 4, stream,
1372 flags);
1373 c_print_type_no_offsets (TYPE_NESTED_TYPES_FIELD_TYPE (type, i),
1374 "", stream, show, level + 4,
c1ec8cea 1375 language, &semi_local_flags, podata);
6cb06a8c 1376 gdb_printf (stream, ";\n");
a27ed7d6
SDJ
1377 }
1378 }
1379
1380 /* Print typedefs defined in this class. */
1381
1382 if (TYPE_TYPEDEF_FIELD_COUNT (type) != 0 && flags->print_typedefs)
1383 {
1f704f76 1384 if (type->num_fields () != 0 || TYPE_NFN_FIELDS (type) != 0
a27ed7d6 1385 || TYPE_NESTED_TYPES_COUNT (type) != 0)
6cb06a8c 1386 gdb_printf (stream, "\n");
a27ed7d6
SDJ
1387
1388 for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); i++)
1389 {
1390 struct type *target = TYPE_TYPEDEF_FIELD_TYPE (type, i);
1391
1392 /* Dereference the typedef declaration itself. */
78134374 1393 gdb_assert (target->code () == TYPE_CODE_TYPEDEF);
27710edb 1394 target = target->target_type ();
a27ed7d6
SDJ
1395
1396 if (need_access_label)
1397 {
1398 section_type = output_access_specifier
1399 (stream, section_type, level,
1400 TYPE_TYPEDEF_FIELD_PROTECTED (type, i),
7c161838 1401 TYPE_TYPEDEF_FIELD_PRIVATE (type, i), flags);
a27ed7d6 1402 }
7c161838
SDJ
1403 print_spaces_filtered_with_print_options (level + 4, stream,
1404 flags);
6cb06a8c 1405 gdb_printf (stream, "typedef ");
a27ed7d6
SDJ
1406
1407 /* We want to print typedefs with substitutions
1408 from the template parameters or globally-known
1409 typedefs but not local typedefs. */
7c161838
SDJ
1410 c_print_type_no_offsets (target,
1411 TYPE_TYPEDEF_FIELD_NAME (type, i),
1412 stream, show - 1, level + 4,
c1ec8cea 1413 language, &semi_local_flags, podata);
6cb06a8c 1414 gdb_printf (stream, ";\n");
a27ed7d6
SDJ
1415 }
1416 }
1417
7c161838
SDJ
1418 if (flags->print_offsets)
1419 {
1420 if (show > 0)
e0c547d1 1421 podata->finish (type, level, stream);
7c161838 1422
d0b1020b 1423 print_spaces (print_offset_data::indentation, stream);
7c161838 1424 if (level == 0)
d0b1020b 1425 print_spaces (2, stream);
7c161838
SDJ
1426 }
1427
6cb06a8c 1428 gdb_printf (stream, "%*s}", level, "");
a27ed7d6 1429 }
a27ed7d6
SDJ
1430}
1431
c906108c 1432/* Print the name of the type (or the ultimate pointer target,
aff410f1
MS
1433 function value or array element), or the description of a structure
1434 or union.
1435
1436 SHOW positive means print details about the type (e.g. enum
1437 values), and print structure elements passing SHOW - 1 for show.
1438
1439 SHOW negative means just print the type name or struct tag if there
1440 is one. If there is no name, print something sensible but concise
1441 like "struct {...}".
1442
1443 SHOW zero means just print the type name or struct tag if there is
1444 one. If there is no name, print something sensible but not as
1445 concise like "struct {int x; int y;}".
c906108c
SS
1446
1447 LEVEL is the number of spaces to indent by.
1448 We increase it for some recursive calls. */
1449
7c161838
SDJ
1450static void
1451c_type_print_base_1 (struct type *type, struct ui_file *stream,
1452 int show, int level,
c1ec8cea 1453 enum language language,
7c161838
SDJ
1454 const struct type_print_options *flags,
1455 struct print_offset_data *podata)
c906108c 1456{
b02dede2 1457 int i;
a27ed7d6 1458 int len;
c906108c
SS
1459
1460 QUIT;
1461
c906108c
SS
1462 if (type == NULL)
1463 {
7f6aba03 1464 fputs_styled (_("<type unknown>"), metadata_style.style (), stream);
c906108c
SS
1465 return;
1466 }
1467
aff410f1
MS
1468 /* When SHOW is zero or less, and there is a valid type name, then
1469 always just print the type name directly from the type. */
c906108c
SS
1470
1471 if (show <= 0
7d93a1e0 1472 && type->name () != NULL)
c906108c 1473 {
3293bbaf 1474 c_type_print_modifier (type, stream, 0, 1, language);
e86ca25f
TT
1475
1476 /* If we have "typedef struct foo {. . .} bar;" do we want to
1477 print it as "struct foo" or as "bar"? Pick the latter for
1478 C++, because C++ folk tend to expect things like "class5
1479 *foo" rather than "struct class5 *foo". We rather
1480 arbitrarily choose to make language_minimal work in a C-like
1481 way. */
1482 if (language == language_c || language == language_minimal)
1483 {
78134374 1484 if (type->code () == TYPE_CODE_UNION)
6cb06a8c 1485 gdb_printf (stream, "union ");
78134374 1486 else if (type->code () == TYPE_CODE_STRUCT)
e86ca25f 1487 {
3bc440a2 1488 if (type->is_declared_class ())
6cb06a8c 1489 gdb_printf (stream, "class ");
e86ca25f 1490 else
6cb06a8c 1491 gdb_printf (stream, "struct ");
e86ca25f 1492 }
78134374 1493 else if (type->code () == TYPE_CODE_ENUM)
6cb06a8c 1494 gdb_printf (stream, "enum ");
e86ca25f
TT
1495 }
1496
7d93a1e0 1497 print_name_maybe_canonical (type->name (), flags, stream);
c906108c
SS
1498 return;
1499 }
1500
f168693b 1501 type = check_typedef (type);
c5aa993b 1502
78134374 1503 switch (type->code ())
c906108c
SS
1504 {
1505 case TYPE_CODE_TYPEDEF:
aff410f1 1506 /* If we get here, the typedef doesn't have a name, and we
27710edb 1507 couldn't resolve type::target_type. Not much we can do. */
7d93a1e0 1508 gdb_assert (type->name () == NULL);
27710edb 1509 gdb_assert (type->target_type () == NULL);
7f6aba03
TT
1510 fprintf_styled (stream, metadata_style.style (),
1511 _("<unnamed typedef>"));
8c540a24
DE
1512 break;
1513
7022349d
PA
1514 case TYPE_CODE_FUNC:
1515 case TYPE_CODE_METHOD:
27710edb 1516 if (type->target_type () == NULL)
7022349d
PA
1517 type_print_unknown_return_type (stream);
1518 else
27710edb 1519 c_type_print_base_1 (type->target_type (),
c1ec8cea 1520 stream, show, level, language, flags, podata);
7022349d 1521 break;
c906108c
SS
1522 case TYPE_CODE_ARRAY:
1523 case TYPE_CODE_PTR:
0d5de010 1524 case TYPE_CODE_MEMBERPTR:
c906108c 1525 case TYPE_CODE_REF:
e1cb3213 1526 case TYPE_CODE_RVALUE_REF:
0d5de010 1527 case TYPE_CODE_METHODPTR:
27710edb 1528 c_type_print_base_1 (type->target_type (),
c1ec8cea 1529 stream, show, level, language, flags, podata);
c906108c
SS
1530 break;
1531
1532 case TYPE_CODE_STRUCT:
1c5b7826 1533 case TYPE_CODE_UNION:
c1ec8cea
TT
1534 c_type_print_base_struct_union (type, stream, show, level,
1535 language, flags, podata);
c906108c
SS
1536 break;
1537
1538 case TYPE_CODE_ENUM:
3293bbaf 1539 c_type_print_modifier (type, stream, 0, 1, language);
6cb06a8c 1540 gdb_printf (stream, "enum ");
3bc440a2 1541 if (type->is_declared_class ())
6cb06a8c 1542 gdb_printf (stream, "class ");
c906108c 1543 /* Print the tag name if it exists.
dda83cd7
SM
1544 The aCC compiler emits a spurious
1545 "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
1546 tag for unnamed struct/union/enum's, which we don't
1547 want to print. */
7d93a1e0
SM
1548 if (type->name () != NULL
1549 && !startswith (type->name (), "{unnamed"))
c906108c 1550 {
7d93a1e0 1551 print_name_maybe_canonical (type->name (), flags, stream);
c906108c 1552 if (show > 0)
0426ad51 1553 gdb_puts (" ", stream);
c906108c
SS
1554 }
1555
1285ce86 1556 stream->wrap_here (4);
c906108c
SS
1557 if (show < 0)
1558 {
aff410f1
MS
1559 /* If we just printed a tag name, no need to print anything
1560 else. */
7d93a1e0 1561 if (type->name () == NULL)
6cb06a8c 1562 gdb_printf (stream, "{...}");
c906108c 1563 }
7d93a1e0 1564 else if (show > 0 || type->name () == NULL)
c906108c 1565 {
14e75d8e
JK
1566 LONGEST lastval = 0;
1567
3d567982
TT
1568 /* We can't handle this case perfectly, as DWARF does not
1569 tell us whether or not the underlying type was specified
1570 in the source (and other debug formats don't provide this
1571 at all). We choose to print the underlying type, if it
1572 has a name, when in C++ on the theory that it's better to
1573 print too much than too little; but conversely not to
1574 print something egregiously outside the current
1575 language's syntax. */
27710edb 1576 if (language == language_cplus && type->target_type () != NULL)
3d567982 1577 {
27710edb 1578 struct type *underlying = check_typedef (type->target_type ());
3d567982 1579
7d93a1e0 1580 if (underlying->name () != NULL)
6cb06a8c 1581 gdb_printf (stream, ": %s ", underlying->name ());
3d567982
TT
1582 }
1583
6cb06a8c 1584 gdb_printf (stream, "{");
1f704f76 1585 len = type->num_fields ();
c906108c
SS
1586 for (i = 0; i < len; i++)
1587 {
1588 QUIT;
c5aa993b 1589 if (i)
6cb06a8c 1590 gdb_printf (stream, ", ");
1285ce86 1591 stream->wrap_here (4);
33d16dd9 1592 fputs_styled (type->field (i).name (),
3f0cbb04 1593 variable_name_style.style (), stream);
970db518 1594 if (lastval != type->field (i).loc_enumval ())
c906108c 1595 {
6cb06a8c
TT
1596 gdb_printf (stream, " = %s",
1597 plongest (type->field (i).loc_enumval ()));
970db518 1598 lastval = type->field (i).loc_enumval ();
c906108c
SS
1599 }
1600 lastval++;
1601 }
6cb06a8c 1602 gdb_printf (stream, "}");
c906108c
SS
1603 }
1604 break;
1605
81516450
DE
1606 case TYPE_CODE_FLAGS:
1607 {
1608 struct type_print_options local_flags = *flags;
1609
1610 local_flags.local_typedefs = NULL;
1611
3293bbaf 1612 c_type_print_modifier (type, stream, 0, 1, language);
6cb06a8c 1613 gdb_printf (stream, "flag ");
7d93a1e0 1614 print_name_maybe_canonical (type->name (), flags, stream);
81516450
DE
1615 if (show > 0)
1616 {
0426ad51 1617 gdb_puts (" ", stream);
6cb06a8c 1618 gdb_printf (stream, "{\n");
1f704f76 1619 if (type->num_fields () == 0)
81516450 1620 {
e46d3488 1621 if (type->is_stub ())
6cb06a8c
TT
1622 gdb_printf (stream,
1623 _("%*s%p[<incomplete type>%p]\n"),
1624 level + 4, "",
1625 metadata_style.style ().ptr (), nullptr);
81516450 1626 else
6cb06a8c
TT
1627 gdb_printf (stream,
1628 _("%*s%p[<no data fields>%p]\n"),
1629 level + 4, "",
1630 metadata_style.style ().ptr (), nullptr);
81516450 1631 }
1f704f76 1632 len = type->num_fields ();
81516450
DE
1633 for (i = 0; i < len; i++)
1634 {
1635 QUIT;
d0b1020b 1636 print_spaces (level + 4, stream);
81516450
DE
1637 /* We pass "show" here and not "show - 1" to get enum types
1638 printed. There's no other way to see them. */
940da03e 1639 c_print_type_1 (type->field (i).type (),
33d16dd9 1640 type->field (i).name (),
7c161838 1641 stream, show, level + 4,
c1ec8cea 1642 language, &local_flags, podata);
6cb06a8c
TT
1643 gdb_printf (stream, " @%s",
1644 plongest (type->field (i).loc_bitpos ()));
81516450
DE
1645 if (TYPE_FIELD_BITSIZE (type, i) > 1)
1646 {
6cb06a8c
TT
1647 gdb_printf (stream, "-%s",
1648 plongest (type->field (i).loc_bitpos ()
1649 + TYPE_FIELD_BITSIZE (type, i)
1650 - 1));
81516450 1651 }
6cb06a8c 1652 gdb_printf (stream, ";\n");
81516450 1653 }
6cb06a8c 1654 gdb_printf (stream, "%*s}", level, "");
81516450
DE
1655 }
1656 }
1657 break;
1658
c906108c 1659 case TYPE_CODE_VOID:
6cb06a8c 1660 gdb_printf (stream, "void");
c906108c
SS
1661 break;
1662
1663 case TYPE_CODE_UNDEF:
6cb06a8c 1664 gdb_printf (stream, _("struct <unknown>"));
c906108c
SS
1665 break;
1666
1667 case TYPE_CODE_ERROR:
6cb06a8c 1668 gdb_printf (stream, "%s", TYPE_ERROR_NAME (type));
c906108c
SS
1669 break;
1670
1671 case TYPE_CODE_RANGE:
0963b4bd 1672 /* This should not occur. */
7f6aba03 1673 fprintf_styled (stream, metadata_style.style (), _("<range type>"));
c906108c
SS
1674 break;
1675
0c9150e4
JB
1676 case TYPE_CODE_FIXED_POINT:
1677 print_type_fixed_point (type, stream);
1678 break;
1679
5c4e30ca 1680 case TYPE_CODE_NAMESPACE:
0426ad51
TT
1681 gdb_puts ("namespace ", stream);
1682 gdb_puts (type->name (), stream);
5c4e30ca
DC
1683 break;
1684
c906108c 1685 default:
aff410f1 1686 /* Handle types not explicitly handled by the other cases, such
dda83cd7
SM
1687 as fundamental types. For these, just print whatever the
1688 type name is, as recorded in the type itself. If there is no
1689 type name, then complain. */
7d93a1e0 1690 if (type->name () != NULL)
c906108c 1691 {
3293bbaf 1692 c_type_print_modifier (type, stream, 0, 1, language);
7d93a1e0 1693 print_name_maybe_canonical (type->name (), flags, stream);
c906108c
SS
1694 }
1695 else
1696 {
aff410f1
MS
1697 /* At least for dump_symtab, it is important that this not
1698 be an error (). */
7f6aba03 1699 fprintf_styled (stream, metadata_style.style (),
78134374 1700 _("<invalid type code %d>"), type->code ());
c906108c
SS
1701 }
1702 break;
1703 }
1704}
7c161838
SDJ
1705
1706/* See c_type_print_base_1. */
1707
1708void
1709c_type_print_base (struct type *type, struct ui_file *stream,
1710 int show, int level,
1711 const struct type_print_options *flags)
1712{
fbb46296 1713 struct print_offset_data podata (flags);
7c161838 1714
c1ec8cea
TT
1715 c_type_print_base_1 (type, stream, show, level,
1716 current_language->la_language, flags, &podata);
7c161838 1717}
This page took 3.462901 seconds and 5 git commands to generate.