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c906108c | 1 | /* Support for printing C values for GDB, the GNU debugger. |
1bac305b | 2 | |
42a4f53d | 3 | Copyright (C) 1986-2019 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
4de283e4 | 21 | #include "symtab.h" |
d55e5aa6 | 22 | #include "gdbtypes.h" |
4de283e4 TT |
23 | #include "expression.h" |
24 | #include "value.h" | |
25 | #include "valprint.h" | |
d55e5aa6 | 26 | #include "language.h" |
4de283e4 TT |
27 | #include "c-lang.h" |
28 | #include "cp-abi.h" | |
d55e5aa6 | 29 | #include "target.h" |
4de283e4 | 30 | #include "objfiles.h" |
c906108c | 31 | \f |
c5aa993b | 32 | |
96c07c5b | 33 | /* A helper for c_textual_element_type. This checks the name of the |
6c7a06a3 TT |
34 | typedef. This is bogus but it isn't apparent that the compiler |
35 | provides us the help we may need. */ | |
36 | ||
37 | static int | |
38 | textual_name (const char *name) | |
39 | { | |
40 | return (!strcmp (name, "wchar_t") | |
41 | || !strcmp (name, "char16_t") | |
42 | || !strcmp (name, "char32_t")); | |
43 | } | |
44 | ||
ea37ba09 DJ |
45 | /* Apply a heuristic to decide whether an array of TYPE or a pointer |
46 | to TYPE should be printed as a textual string. Return non-zero if | |
47 | it should, or zero if it should be treated as an array of integers | |
aff410f1 MS |
48 | or pointer to integers. FORMAT is the current format letter, or 0 |
49 | if none. | |
ea37ba09 DJ |
50 | |
51 | We guess that "char" is a character. Explicitly signed and | |
52 | unsigned character types are also characters. Integer data from | |
53 | vector types is not. The user can override this by using the /s | |
54 | format letter. */ | |
55 | ||
96c07c5b TT |
56 | int |
57 | c_textual_element_type (struct type *type, char format) | |
ea37ba09 | 58 | { |
85e306ed | 59 | struct type *true_type, *iter_type; |
ea37ba09 DJ |
60 | |
61 | if (format != 0 && format != 's') | |
62 | return 0; | |
63 | ||
85e306ed TT |
64 | /* We also rely on this for its side effect of setting up all the |
65 | typedef pointers. */ | |
66 | true_type = check_typedef (type); | |
67 | ||
ea37ba09 DJ |
68 | /* TYPE_CODE_CHAR is always textual. */ |
69 | if (TYPE_CODE (true_type) == TYPE_CODE_CHAR) | |
70 | return 1; | |
85e306ed | 71 | |
6c7a06a3 TT |
72 | /* Any other character-like types must be integral. */ |
73 | if (TYPE_CODE (true_type) != TYPE_CODE_INT) | |
74 | return 0; | |
75 | ||
85e306ed TT |
76 | /* We peel typedefs one by one, looking for a match. */ |
77 | iter_type = type; | |
78 | while (iter_type) | |
79 | { | |
80 | /* Check the name of the type. */ | |
81 | if (TYPE_NAME (iter_type) && textual_name (TYPE_NAME (iter_type))) | |
82 | return 1; | |
83 | ||
84 | if (TYPE_CODE (iter_type) != TYPE_CODE_TYPEDEF) | |
85 | break; | |
86 | ||
87 | /* Peel a single typedef. If the typedef doesn't have a target | |
88 | type, we use check_typedef and hope the result is ok -- it | |
89 | might be for C++, where wchar_t is a built-in type. */ | |
90 | if (TYPE_TARGET_TYPE (iter_type)) | |
91 | iter_type = TYPE_TARGET_TYPE (iter_type); | |
92 | else | |
93 | iter_type = check_typedef (iter_type); | |
94 | } | |
ea37ba09 DJ |
95 | |
96 | if (format == 's') | |
97 | { | |
aff410f1 MS |
98 | /* Print this as a string if we can manage it. For now, no wide |
99 | character support. */ | |
ea37ba09 DJ |
100 | if (TYPE_CODE (true_type) == TYPE_CODE_INT |
101 | && TYPE_LENGTH (true_type) == 1) | |
102 | return 1; | |
103 | } | |
104 | else | |
105 | { | |
106 | /* If a one-byte TYPE_CODE_INT is missing the not-a-character | |
107 | flag, then we treat it as text; otherwise, we assume it's | |
108 | being used as data. */ | |
109 | if (TYPE_CODE (true_type) == TYPE_CODE_INT | |
110 | && TYPE_LENGTH (true_type) == 1 | |
111 | && !TYPE_NOTTEXT (true_type)) | |
112 | return 1; | |
113 | } | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
e88acd96 TT |
118 | /* Decorations for C. */ |
119 | ||
120 | static const struct generic_val_print_decorations c_decorations = | |
121 | { | |
122 | "", | |
123 | " + ", | |
124 | " * I", | |
125 | "true", | |
126 | "false", | |
00272ec4 TT |
127 | "void", |
128 | "{", | |
129 | "}" | |
e88acd96 TT |
130 | }; |
131 | ||
1033c33c SM |
132 | /* Print a pointer based on the type of its target. |
133 | ||
134 | Arguments to this functions are roughly the same as those in c_val_print. | |
135 | A difference is that ADDRESS is the address to print, with embedded_offset | |
136 | already added. UNRESOLVED_ELTTYPE and ELTTYPE represent the pointed type, | |
137 | respectively before and after check_typedef. */ | |
138 | ||
139 | static void | |
140 | print_unpacked_pointer (struct type *type, struct type *elttype, | |
141 | struct type *unresolved_elttype, | |
142 | const gdb_byte *valaddr, int embedded_offset, | |
143 | CORE_ADDR address, struct ui_file *stream, int recurse, | |
144 | const struct value_print_options *options) | |
145 | { | |
146 | int want_space = 0; | |
147 | struct gdbarch *gdbarch = get_type_arch (type); | |
148 | ||
149 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
150 | { | |
151 | /* Try to print what function it points to. */ | |
152 | print_function_pointer_address (options, gdbarch, address, stream); | |
153 | return; | |
154 | } | |
155 | ||
156 | if (options->symbol_print) | |
157 | want_space = print_address_demangle (options, gdbarch, address, stream, | |
158 | demangle); | |
159 | else if (options->addressprint) | |
160 | { | |
161 | fputs_filtered (paddress (gdbarch, address), stream); | |
162 | want_space = 1; | |
163 | } | |
164 | ||
165 | /* For a pointer to a textual type, also print the string | |
166 | pointed to, unless pointer is null. */ | |
167 | ||
168 | if (c_textual_element_type (unresolved_elttype, options->format) | |
169 | && address != 0) | |
170 | { | |
171 | if (want_space) | |
172 | fputs_filtered (" ", stream); | |
173 | val_print_string (unresolved_elttype, NULL, address, -1, stream, options); | |
174 | } | |
175 | else if (cp_is_vtbl_member (type)) | |
176 | { | |
177 | /* Print vtbl's nicely. */ | |
178 | CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset); | |
179 | struct bound_minimal_symbol msymbol = | |
180 | lookup_minimal_symbol_by_pc (vt_address); | |
181 | ||
182 | /* If 'symbol_print' is set, we did the work above. */ | |
183 | if (!options->symbol_print | |
184 | && (msymbol.minsym != NULL) | |
185 | && (vt_address == BMSYMBOL_VALUE_ADDRESS (msymbol))) | |
186 | { | |
187 | if (want_space) | |
188 | fputs_filtered (" ", stream); | |
189 | fputs_filtered (" <", stream); | |
190 | fputs_filtered (MSYMBOL_PRINT_NAME (msymbol.minsym), stream); | |
191 | fputs_filtered (">", stream); | |
192 | want_space = 1; | |
193 | } | |
194 | ||
195 | if (vt_address && options->vtblprint) | |
196 | { | |
197 | struct value *vt_val; | |
be903358 | 198 | struct symbol *wsym = NULL; |
1033c33c | 199 | struct type *wtype; |
1033c33c SM |
200 | |
201 | if (want_space) | |
202 | fputs_filtered (" ", stream); | |
203 | ||
204 | if (msymbol.minsym != NULL) | |
de63c46b PA |
205 | { |
206 | const char *search_name | |
207 | = MSYMBOL_SEARCH_NAME (msymbol.minsym); | |
582942f4 | 208 | wsym = lookup_symbol_search_name (search_name, NULL, |
de63c46b PA |
209 | VAR_DOMAIN).symbol; |
210 | } | |
1033c33c SM |
211 | |
212 | if (wsym) | |
213 | { | |
214 | wtype = SYMBOL_TYPE (wsym); | |
215 | } | |
216 | else | |
217 | { | |
218 | wtype = unresolved_elttype; | |
219 | } | |
220 | vt_val = value_at (wtype, vt_address); | |
221 | common_val_print (vt_val, stream, recurse + 1, options, | |
222 | current_language); | |
223 | if (options->prettyformat) | |
224 | { | |
225 | fprintf_filtered (stream, "\n"); | |
226 | print_spaces_filtered (2 + 2 * recurse, stream); | |
227 | } | |
228 | } | |
229 | } | |
230 | } | |
231 | ||
0b6ef777 | 232 | /* c_val_print helper for TYPE_CODE_ARRAY. */ |
c906108c | 233 | |
0b6ef777 SM |
234 | static void |
235 | c_val_print_array (struct type *type, const gdb_byte *valaddr, | |
236 | int embedded_offset, CORE_ADDR address, | |
237 | struct ui_file *stream, int recurse, | |
e8b24d9f | 238 | struct value *original_value, |
0b6ef777 | 239 | const struct value_print_options *options) |
c906108c | 240 | { |
0b6ef777 SM |
241 | struct type *unresolved_elttype = TYPE_TARGET_TYPE (type); |
242 | struct type *elttype = check_typedef (unresolved_elttype); | |
3ae385af SM |
243 | struct gdbarch *arch = get_type_arch (type); |
244 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
c906108c | 245 | |
0b6ef777 | 246 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0) |
c906108c | 247 | { |
0b6ef777 SM |
248 | LONGEST low_bound, high_bound; |
249 | int eltlen, len; | |
34877895 | 250 | enum bfd_endian byte_order = type_byte_order (type); |
0b6ef777 SM |
251 | unsigned int i = 0; /* Number of characters printed. */ |
252 | ||
253 | if (!get_array_bounds (type, &low_bound, &high_bound)) | |
254 | error (_("Could not determine the array high bound")); | |
255 | ||
256 | eltlen = TYPE_LENGTH (elttype); | |
257 | len = high_bound - low_bound + 1; | |
258 | if (options->prettyformat_arrays) | |
c906108c | 259 | { |
0b6ef777 SM |
260 | print_spaces_filtered (2 + 2 * recurse, stream); |
261 | } | |
dbc98a8b | 262 | |
0b6ef777 SM |
263 | /* Print arrays of textual chars with a string syntax, as |
264 | long as the entire array is valid. */ | |
265 | if (c_textual_element_type (unresolved_elttype, | |
266 | options->format) | |
267 | && value_bytes_available (original_value, embedded_offset, | |
268 | TYPE_LENGTH (type)) | |
269 | && !value_bits_any_optimized_out (original_value, | |
270 | TARGET_CHAR_BIT * embedded_offset, | |
271 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
272 | { | |
273 | int force_ellipses = 0; | |
ea37ba09 | 274 | |
0b6ef777 SM |
275 | /* If requested, look for the first null char and only |
276 | print elements up to it. */ | |
277 | if (options->stop_print_at_null) | |
c906108c | 278 | { |
0b6ef777 SM |
279 | unsigned int temp_len; |
280 | ||
281 | for (temp_len = 0; | |
282 | (temp_len < len | |
283 | && temp_len < options->print_max | |
3ae385af SM |
284 | && extract_unsigned_integer (valaddr |
285 | + embedded_offset * unit_size | |
0b6ef777 SM |
286 | + temp_len * eltlen, |
287 | eltlen, byte_order) != 0); | |
288 | ++temp_len) | |
289 | ; | |
290 | ||
291 | /* Force LA_PRINT_STRING to print ellipses if | |
292 | we've printed the maximum characters and | |
293 | the next character is not \000. */ | |
294 | if (temp_len == options->print_max && temp_len < len) | |
c906108c | 295 | { |
0b6ef777 | 296 | ULONGEST val |
3ae385af SM |
297 | = extract_unsigned_integer (valaddr |
298 | + embedded_offset * unit_size | |
0b6ef777 SM |
299 | + temp_len * eltlen, |
300 | eltlen, byte_order); | |
301 | if (val != 0) | |
302 | force_ellipses = 1; | |
c906108c | 303 | } |
c5aa993b | 304 | |
0b6ef777 SM |
305 | len = temp_len; |
306 | } | |
307 | ||
308 | LA_PRINT_STRING (stream, unresolved_elttype, | |
3ae385af | 309 | valaddr + embedded_offset * unit_size, len, |
0b6ef777 SM |
310 | NULL, force_ellipses, options); |
311 | i = len; | |
312 | } | |
313 | else | |
314 | { | |
315 | fprintf_filtered (stream, "{"); | |
316 | /* If this is a virtual function table, print the 0th | |
317 | entry specially, and the rest of the members | |
318 | normally. */ | |
319 | if (cp_is_vtbl_ptr_type (elttype)) | |
320 | { | |
321 | i = 1; | |
322 | fprintf_filtered (stream, _("%d vtable entries"), | |
323 | len - 1); | |
c906108c SS |
324 | } |
325 | else | |
326 | { | |
0b6ef777 | 327 | i = 0; |
c906108c | 328 | } |
e8b24d9f | 329 | val_print_array_elements (type, embedded_offset, |
0b6ef777 SM |
330 | address, stream, |
331 | recurse, original_value, options, i); | |
332 | fprintf_filtered (stream, "}"); | |
c906108c | 333 | } |
0b6ef777 SM |
334 | } |
335 | else | |
336 | { | |
1033c33c SM |
337 | /* Array of unspecified length: treat like pointer to first elt. */ |
338 | print_unpacked_pointer (type, elttype, unresolved_elttype, valaddr, | |
339 | embedded_offset, address + embedded_offset, | |
340 | stream, recurse, options); | |
0b6ef777 SM |
341 | } |
342 | } | |
343 | ||
1c67f032 SM |
344 | /* c_val_print helper for TYPE_CODE_PTR. */ |
345 | ||
346 | static void | |
347 | c_val_print_ptr (struct type *type, const gdb_byte *valaddr, | |
348 | int embedded_offset, struct ui_file *stream, int recurse, | |
e8b24d9f | 349 | struct value *original_value, |
1c67f032 SM |
350 | const struct value_print_options *options) |
351 | { | |
3ae385af SM |
352 | struct gdbarch *arch = get_type_arch (type); |
353 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
354 | ||
1c67f032 SM |
355 | if (options->format && options->format != 's') |
356 | { | |
e8b24d9f | 357 | val_print_scalar_formatted (type, embedded_offset, |
1c67f032 SM |
358 | original_value, options, 0, stream); |
359 | } | |
360 | else if (options->vtblprint && cp_is_vtbl_ptr_type (type)) | |
361 | { | |
362 | /* Print the unmangled name if desired. */ | |
363 | /* Print vtable entry - we only get here if we ARE using | |
364 | -fvtable_thunks. (Otherwise, look under | |
365 | TYPE_CODE_STRUCT.) */ | |
366 | CORE_ADDR addr | |
367 | = extract_typed_address (valaddr + embedded_offset, type); | |
368 | struct gdbarch *gdbarch = get_type_arch (type); | |
369 | ||
370 | print_function_pointer_address (options, gdbarch, addr, stream); | |
371 | } | |
372 | else | |
373 | { | |
374 | struct type *unresolved_elttype = TYPE_TARGET_TYPE (type); | |
375 | struct type *elttype = check_typedef (unresolved_elttype); | |
3ae385af SM |
376 | CORE_ADDR addr = unpack_pointer (type, |
377 | valaddr + embedded_offset * unit_size); | |
1c67f032 SM |
378 | |
379 | print_unpacked_pointer (type, elttype, unresolved_elttype, valaddr, | |
380 | embedded_offset, addr, stream, recurse, options); | |
381 | } | |
382 | } | |
383 | ||
9e4f353c SM |
384 | /* c_val_print helper for TYPE_CODE_STRUCT. */ |
385 | ||
386 | static void | |
387 | c_val_print_struct (struct type *type, const gdb_byte *valaddr, | |
388 | int embedded_offset, CORE_ADDR address, | |
389 | struct ui_file *stream, int recurse, | |
e8b24d9f | 390 | struct value *original_value, |
9e4f353c SM |
391 | const struct value_print_options *options) |
392 | { | |
393 | if (options->vtblprint && cp_is_vtbl_ptr_type (type)) | |
394 | { | |
395 | /* Print the unmangled name if desired. */ | |
396 | /* Print vtable entry - we only get here if NOT using | |
397 | -fvtable_thunks. (Otherwise, look under | |
398 | TYPE_CODE_PTR.) */ | |
399 | struct gdbarch *gdbarch = get_type_arch (type); | |
400 | int offset = (embedded_offset | |
401 | + TYPE_FIELD_BITPOS (type, | |
402 | VTBL_FNADDR_OFFSET) / 8); | |
403 | struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET); | |
404 | CORE_ADDR addr = extract_typed_address (valaddr + offset, field_type); | |
405 | ||
406 | print_function_pointer_address (options, gdbarch, addr, stream); | |
407 | } | |
408 | else | |
409 | cp_print_value_fields_rtti (type, valaddr, | |
410 | embedded_offset, address, | |
411 | stream, recurse, | |
412 | original_value, options, | |
413 | NULL, 0); | |
414 | } | |
415 | ||
416 | /* c_val_print helper for TYPE_CODE_UNION. */ | |
417 | ||
418 | static void | |
419 | c_val_print_union (struct type *type, const gdb_byte *valaddr, | |
420 | int embedded_offset, CORE_ADDR address, | |
421 | struct ui_file *stream, int recurse, | |
e8b24d9f | 422 | struct value *original_value, |
9e4f353c SM |
423 | const struct value_print_options *options) |
424 | { | |
425 | if (recurse && !options->unionprint) | |
426 | { | |
427 | fprintf_filtered (stream, "{...}"); | |
428 | } | |
429 | else | |
430 | { | |
431 | c_val_print_struct (type, valaddr, embedded_offset, address, stream, | |
432 | recurse, original_value, options); | |
433 | } | |
434 | } | |
435 | ||
49f7fe28 SM |
436 | /* c_val_print helper for TYPE_CODE_INT. */ |
437 | ||
438 | static void | |
439 | c_val_print_int (struct type *type, struct type *unresolved_type, | |
440 | const gdb_byte *valaddr, int embedded_offset, | |
e8b24d9f | 441 | struct ui_file *stream, struct value *original_value, |
49f7fe28 SM |
442 | const struct value_print_options *options) |
443 | { | |
3ae385af SM |
444 | struct gdbarch *arch = get_type_arch (type); |
445 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
446 | ||
49f7fe28 SM |
447 | if (options->format || options->output_format) |
448 | { | |
449 | struct value_print_options opts = *options; | |
450 | ||
451 | opts.format = (options->format ? options->format | |
452 | : options->output_format); | |
e8b24d9f | 453 | val_print_scalar_formatted (type, embedded_offset, |
49f7fe28 SM |
454 | original_value, &opts, 0, stream); |
455 | } | |
456 | else | |
457 | { | |
f12f6bad TT |
458 | val_print_scalar_formatted (type, embedded_offset, |
459 | original_value, options, 0, stream); | |
49f7fe28 SM |
460 | /* C and C++ has no single byte int type, char is used |
461 | instead. Since we don't know whether the value is really | |
462 | intended to be used as an integer or a character, print | |
463 | the character equivalent as well. */ | |
464 | if (c_textual_element_type (unresolved_type, options->format)) | |
465 | { | |
466 | fputs_filtered (" ", stream); | |
3ae385af SM |
467 | LA_PRINT_CHAR (unpack_long (type, |
468 | valaddr + embedded_offset * unit_size), | |
49f7fe28 SM |
469 | unresolved_type, stream); |
470 | } | |
471 | } | |
472 | } | |
473 | ||
938c69a1 SM |
474 | /* c_val_print helper for TYPE_CODE_MEMBERPTR. */ |
475 | ||
476 | static void | |
477 | c_val_print_memberptr (struct type *type, const gdb_byte *valaddr, | |
478 | int embedded_offset, CORE_ADDR address, | |
479 | struct ui_file *stream, int recurse, | |
e8b24d9f | 480 | struct value *original_value, |
938c69a1 SM |
481 | const struct value_print_options *options) |
482 | { | |
483 | if (!options->format) | |
484 | { | |
485 | cp_print_class_member (valaddr + embedded_offset, type, stream, "&"); | |
486 | } | |
487 | else | |
488 | { | |
e8b24d9f | 489 | generic_val_print (type, embedded_offset, address, stream, |
938c69a1 SM |
490 | recurse, original_value, options, &c_decorations); |
491 | } | |
492 | } | |
493 | ||
0b6ef777 SM |
494 | /* See val_print for a description of the various parameters of this |
495 | function; they are identical. */ | |
496 | ||
497 | void | |
e8b24d9f | 498 | c_val_print (struct type *type, |
0b6ef777 SM |
499 | int embedded_offset, CORE_ADDR address, |
500 | struct ui_file *stream, int recurse, | |
e8b24d9f | 501 | struct value *original_value, |
0b6ef777 SM |
502 | const struct value_print_options *options) |
503 | { | |
0b6ef777 | 504 | struct type *unresolved_type = type; |
e8b24d9f | 505 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
0b6ef777 | 506 | |
f168693b | 507 | type = check_typedef (type); |
0b6ef777 SM |
508 | switch (TYPE_CODE (type)) |
509 | { | |
510 | case TYPE_CODE_ARRAY: | |
511 | c_val_print_array (type, valaddr, embedded_offset, address, stream, | |
512 | recurse, original_value, options); | |
1033c33c | 513 | break; |
c906108c | 514 | |
0d5de010 DJ |
515 | case TYPE_CODE_METHODPTR: |
516 | cplus_print_method_ptr (valaddr + embedded_offset, type, stream); | |
517 | break; | |
518 | ||
c906108c | 519 | case TYPE_CODE_PTR: |
1c67f032 SM |
520 | c_val_print_ptr (type, valaddr, embedded_offset, stream, recurse, |
521 | original_value, options); | |
c906108c SS |
522 | break; |
523 | ||
c906108c | 524 | case TYPE_CODE_UNION: |
9e4f353c SM |
525 | c_val_print_union (type, valaddr, embedded_offset, address, stream, |
526 | recurse, original_value, options); | |
527 | break; | |
528 | ||
c906108c | 529 | case TYPE_CODE_STRUCT: |
9e4f353c SM |
530 | c_val_print_struct (type, valaddr, embedded_offset, address, stream, |
531 | recurse, original_value, options); | |
c906108c SS |
532 | break; |
533 | ||
c906108c | 534 | case TYPE_CODE_INT: |
49f7fe28 SM |
535 | c_val_print_int (type, unresolved_type, valaddr, embedded_offset, stream, |
536 | original_value, options); | |
c906108c SS |
537 | break; |
538 | ||
e88acd96 | 539 | case TYPE_CODE_MEMBERPTR: |
938c69a1 SM |
540 | c_val_print_memberptr (type, valaddr, embedded_offset, address, stream, |
541 | recurse, original_value, options); | |
542 | break; | |
c906108c | 543 | |
e88acd96 | 544 | case TYPE_CODE_REF: |
e1cb3213 | 545 | case TYPE_CODE_RVALUE_REF: |
e88acd96 TT |
546 | case TYPE_CODE_ENUM: |
547 | case TYPE_CODE_FLAGS: | |
548 | case TYPE_CODE_FUNC: | |
549 | case TYPE_CODE_METHOD: | |
550 | case TYPE_CODE_BOOL: | |
551 | case TYPE_CODE_RANGE: | |
c906108c | 552 | case TYPE_CODE_FLT: |
7678ef8f | 553 | case TYPE_CODE_DECFLOAT: |
c906108c | 554 | case TYPE_CODE_VOID: |
c906108c | 555 | case TYPE_CODE_ERROR: |
c906108c | 556 | case TYPE_CODE_UNDEF: |
fca9e603 | 557 | case TYPE_CODE_COMPLEX: |
e88acd96 | 558 | case TYPE_CODE_CHAR: |
c906108c | 559 | default: |
e8b24d9f | 560 | generic_val_print (type, embedded_offset, address, |
e88acd96 TT |
561 | stream, recurse, original_value, options, |
562 | &c_decorations); | |
563 | break; | |
c906108c | 564 | } |
c906108c SS |
565 | } |
566 | \f | |
8e069a98 | 567 | void |
79a45b7d TT |
568 | c_value_print (struct value *val, struct ui_file *stream, |
569 | const struct value_print_options *options) | |
c906108c | 570 | { |
6c7a06a3 | 571 | struct type *type, *real_type, *val_type; |
6b850546 DT |
572 | int full, using_enc; |
573 | LONGEST top; | |
79a45b7d TT |
574 | struct value_print_options opts = *options; |
575 | ||
576 | opts.deref_ref = 1; | |
c5aa993b | 577 | |
c906108c SS |
578 | /* If it is a pointer, indicate what it points to. |
579 | ||
580 | Print type also if it is a reference. | |
581 | ||
582 | C++: if it is a member pointer, we will take care | |
583 | of that when we print it. */ | |
88750304 | 584 | |
6c7a06a3 TT |
585 | /* Preserve the original type before stripping typedefs. We prefer |
586 | to pass down the original type when possible, but for local | |
587 | checks it is better to look past the typedefs. */ | |
588 | val_type = value_type (val); | |
589 | type = check_typedef (val_type); | |
88750304 | 590 | |
e1cb3213 | 591 | if (TYPE_CODE (type) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (type)) |
c906108c SS |
592 | { |
593 | /* Hack: remove (char *) for char strings. Their | |
ea37ba09 | 594 | type is indicated by the quoted string anyway. |
96c07c5b | 595 | (Don't use c_textual_element_type here; quoted strings |
6c7a06a3 TT |
596 | are always exactly (char *), (wchar_t *), or the like. */ |
597 | if (TYPE_CODE (val_type) == TYPE_CODE_PTR | |
598 | && TYPE_NAME (val_type) == NULL | |
599 | && TYPE_NAME (TYPE_TARGET_TYPE (val_type)) != NULL | |
aff410f1 MS |
600 | && (strcmp (TYPE_NAME (TYPE_TARGET_TYPE (val_type)), |
601 | "char") == 0 | |
6c7a06a3 | 602 | || textual_name (TYPE_NAME (TYPE_TARGET_TYPE (val_type))))) |
c906108c | 603 | { |
aff410f1 | 604 | /* Print nothing. */ |
c906108c | 605 | } |
79a45b7d | 606 | else if (options->objectprint |
4753d33b | 607 | && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT)) |
c5aa993b | 608 | { |
a65cfae5 AV |
609 | int is_ref = TYPE_IS_REFERENCE (type); |
610 | enum type_code refcode = TYPE_CODE_UNDEF; | |
5f2e6b00 TT |
611 | |
612 | if (is_ref) | |
a65cfae5 AV |
613 | { |
614 | val = value_addr (val); | |
615 | refcode = TYPE_CODE (type); | |
616 | } | |
070ad9f0 | 617 | |
aff410f1 | 618 | /* Pointer to class, check real type of object. */ |
c906108c | 619 | fprintf_filtered (stream, "("); |
ec0a52e1 PA |
620 | |
621 | if (value_entirely_available (val)) | |
476350ba | 622 | { |
dfcee124 AG |
623 | real_type = value_rtti_indirect_type (val, &full, &top, |
624 | &using_enc); | |
ec0a52e1 PA |
625 | if (real_type) |
626 | { | |
627 | /* RTTI entry found. */ | |
dfcee124 AG |
628 | type = real_type; |
629 | ||
ec0a52e1 | 630 | /* Need to adjust pointer value. */ |
5f2e6b00 TT |
631 | val = value_from_pointer (real_type, |
632 | value_as_address (val) - top); | |
633 | ||
ec0a52e1 PA |
634 | /* Note: When we look up RTTI entries, we don't get |
635 | any information on const or volatile | |
636 | attributes. */ | |
637 | } | |
638 | } | |
476350ba MG |
639 | |
640 | if (is_ref) | |
641 | { | |
a65cfae5 | 642 | val = value_ref (value_ind (val), refcode); |
476350ba MG |
643 | type = value_type (val); |
644 | } | |
645 | ||
646 | type_print (type, "", stream, -1); | |
c906108c | 647 | fprintf_filtered (stream, ") "); |
6c7a06a3 | 648 | val_type = type; |
c5aa993b | 649 | } |
c906108c SS |
650 | else |
651 | { | |
c5aa993b | 652 | /* normal case */ |
c906108c | 653 | fprintf_filtered (stream, "("); |
88750304 | 654 | type_print (value_type (val), "", stream, -1); |
c906108c SS |
655 | fprintf_filtered (stream, ") "); |
656 | } | |
657 | } | |
88750304 | 658 | |
42be36b3 CT |
659 | if (!value_initialized (val)) |
660 | fprintf_filtered (stream, " [uninitialized] "); | |
661 | ||
4753d33b | 662 | if (options->objectprint && (TYPE_CODE (type) == TYPE_CODE_STRUCT)) |
c906108c | 663 | { |
aff410f1 | 664 | /* Attempt to determine real type of object. */ |
c906108c | 665 | real_type = value_rtti_type (val, &full, &top, &using_enc); |
c5aa993b JM |
666 | if (real_type) |
667 | { | |
aff410f1 MS |
668 | /* We have RTTI information, so use it. */ |
669 | val = value_full_object (val, real_type, | |
670 | full, top, using_enc); | |
c5aa993b JM |
671 | fprintf_filtered (stream, "(%s%s) ", |
672 | TYPE_NAME (real_type), | |
3d263c1d | 673 | full ? "" : _(" [incomplete object]")); |
aff410f1 MS |
674 | /* Print out object: enclosing type is same as real_type if |
675 | full. */ | |
8e069a98 | 676 | val_print (value_enclosing_type (val), |
e8b24d9f | 677 | 0, |
8e069a98 TT |
678 | value_address (val), stream, 0, |
679 | val, &opts, current_language); | |
680 | return; | |
aff410f1 MS |
681 | /* Note: When we look up RTTI entries, we don't get any |
682 | information on const or volatile attributes. */ | |
c5aa993b | 683 | } |
88750304 | 684 | else if (type != check_typedef (value_enclosing_type (val))) |
c5aa993b | 685 | { |
aff410f1 | 686 | /* No RTTI information, so let's do our best. */ |
c5aa993b | 687 | fprintf_filtered (stream, "(%s ?) ", |
4754a64e | 688 | TYPE_NAME (value_enclosing_type (val))); |
8e069a98 | 689 | val_print (value_enclosing_type (val), |
e8b24d9f | 690 | 0, |
8e069a98 TT |
691 | value_address (val), stream, 0, |
692 | val, &opts, current_language); | |
693 | return; | |
c5aa993b | 694 | } |
aff410f1 | 695 | /* Otherwise, we end up at the return outside this "if". */ |
c906108c | 696 | } |
c5aa993b | 697 | |
e8b24d9f | 698 | val_print (val_type, |
8e069a98 TT |
699 | value_embedded_offset (val), |
700 | value_address (val), | |
701 | stream, 0, | |
702 | val, &opts, current_language); | |
c906108c | 703 | } |