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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" | |
d55e5aa6 TT |
21 | |
22 | /* Local non-gdb includes. */ | |
c906108c | 23 | #include "c-lang.h" |
015a42b4 | 24 | #include "cp-abi.h" |
d55e5aa6 TT |
25 | #include "expression.h" |
26 | #include "gdbtypes.h" | |
27 | #include "language.h" | |
77e371c0 | 28 | #include "objfiles.h" |
d55e5aa6 TT |
29 | #include "symtab.h" |
30 | #include "target.h" | |
31 | #include "valprint.h" | |
32 | #include "value.h" | |
33 | ||
c906108c | 34 | \f |
c5aa993b | 35 | |
96c07c5b | 36 | /* A helper for c_textual_element_type. This checks the name of the |
6c7a06a3 TT |
37 | typedef. This is bogus but it isn't apparent that the compiler |
38 | provides us the help we may need. */ | |
39 | ||
40 | static int | |
41 | textual_name (const char *name) | |
42 | { | |
43 | return (!strcmp (name, "wchar_t") | |
44 | || !strcmp (name, "char16_t") | |
45 | || !strcmp (name, "char32_t")); | |
46 | } | |
47 | ||
ea37ba09 DJ |
48 | /* Apply a heuristic to decide whether an array of TYPE or a pointer |
49 | to TYPE should be printed as a textual string. Return non-zero if | |
50 | it should, or zero if it should be treated as an array of integers | |
aff410f1 MS |
51 | or pointer to integers. FORMAT is the current format letter, or 0 |
52 | if none. | |
ea37ba09 DJ |
53 | |
54 | We guess that "char" is a character. Explicitly signed and | |
55 | unsigned character types are also characters. Integer data from | |
56 | vector types is not. The user can override this by using the /s | |
57 | format letter. */ | |
58 | ||
96c07c5b TT |
59 | int |
60 | c_textual_element_type (struct type *type, char format) | |
ea37ba09 | 61 | { |
85e306ed | 62 | struct type *true_type, *iter_type; |
ea37ba09 DJ |
63 | |
64 | if (format != 0 && format != 's') | |
65 | return 0; | |
66 | ||
85e306ed TT |
67 | /* We also rely on this for its side effect of setting up all the |
68 | typedef pointers. */ | |
69 | true_type = check_typedef (type); | |
70 | ||
ea37ba09 DJ |
71 | /* TYPE_CODE_CHAR is always textual. */ |
72 | if (TYPE_CODE (true_type) == TYPE_CODE_CHAR) | |
73 | return 1; | |
85e306ed | 74 | |
6c7a06a3 TT |
75 | /* Any other character-like types must be integral. */ |
76 | if (TYPE_CODE (true_type) != TYPE_CODE_INT) | |
77 | return 0; | |
78 | ||
85e306ed TT |
79 | /* We peel typedefs one by one, looking for a match. */ |
80 | iter_type = type; | |
81 | while (iter_type) | |
82 | { | |
83 | /* Check the name of the type. */ | |
84 | if (TYPE_NAME (iter_type) && textual_name (TYPE_NAME (iter_type))) | |
85 | return 1; | |
86 | ||
87 | if (TYPE_CODE (iter_type) != TYPE_CODE_TYPEDEF) | |
88 | break; | |
89 | ||
90 | /* Peel a single typedef. If the typedef doesn't have a target | |
91 | type, we use check_typedef and hope the result is ok -- it | |
92 | might be for C++, where wchar_t is a built-in type. */ | |
93 | if (TYPE_TARGET_TYPE (iter_type)) | |
94 | iter_type = TYPE_TARGET_TYPE (iter_type); | |
95 | else | |
96 | iter_type = check_typedef (iter_type); | |
97 | } | |
ea37ba09 DJ |
98 | |
99 | if (format == 's') | |
100 | { | |
aff410f1 MS |
101 | /* Print this as a string if we can manage it. For now, no wide |
102 | character support. */ | |
ea37ba09 DJ |
103 | if (TYPE_CODE (true_type) == TYPE_CODE_INT |
104 | && TYPE_LENGTH (true_type) == 1) | |
105 | return 1; | |
106 | } | |
107 | else | |
108 | { | |
109 | /* If a one-byte TYPE_CODE_INT is missing the not-a-character | |
110 | flag, then we treat it as text; otherwise, we assume it's | |
111 | being used as data. */ | |
112 | if (TYPE_CODE (true_type) == TYPE_CODE_INT | |
113 | && TYPE_LENGTH (true_type) == 1 | |
114 | && !TYPE_NOTTEXT (true_type)) | |
115 | return 1; | |
116 | } | |
117 | ||
118 | return 0; | |
119 | } | |
120 | ||
e88acd96 TT |
121 | /* Decorations for C. */ |
122 | ||
123 | static const struct generic_val_print_decorations c_decorations = | |
124 | { | |
125 | "", | |
126 | " + ", | |
127 | " * I", | |
128 | "true", | |
129 | "false", | |
00272ec4 TT |
130 | "void", |
131 | "{", | |
132 | "}" | |
e88acd96 TT |
133 | }; |
134 | ||
1033c33c SM |
135 | /* Print a pointer based on the type of its target. |
136 | ||
137 | Arguments to this functions are roughly the same as those in c_val_print. | |
138 | A difference is that ADDRESS is the address to print, with embedded_offset | |
139 | already added. UNRESOLVED_ELTTYPE and ELTTYPE represent the pointed type, | |
140 | respectively before and after check_typedef. */ | |
141 | ||
142 | static void | |
143 | print_unpacked_pointer (struct type *type, struct type *elttype, | |
144 | struct type *unresolved_elttype, | |
145 | const gdb_byte *valaddr, int embedded_offset, | |
146 | CORE_ADDR address, struct ui_file *stream, int recurse, | |
147 | const struct value_print_options *options) | |
148 | { | |
149 | int want_space = 0; | |
150 | struct gdbarch *gdbarch = get_type_arch (type); | |
151 | ||
152 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
153 | { | |
154 | /* Try to print what function it points to. */ | |
155 | print_function_pointer_address (options, gdbarch, address, stream); | |
156 | return; | |
157 | } | |
158 | ||
159 | if (options->symbol_print) | |
160 | want_space = print_address_demangle (options, gdbarch, address, stream, | |
161 | demangle); | |
162 | else if (options->addressprint) | |
163 | { | |
164 | fputs_filtered (paddress (gdbarch, address), stream); | |
165 | want_space = 1; | |
166 | } | |
167 | ||
168 | /* For a pointer to a textual type, also print the string | |
169 | pointed to, unless pointer is null. */ | |
170 | ||
171 | if (c_textual_element_type (unresolved_elttype, options->format) | |
172 | && address != 0) | |
173 | { | |
174 | if (want_space) | |
175 | fputs_filtered (" ", stream); | |
176 | val_print_string (unresolved_elttype, NULL, address, -1, stream, options); | |
177 | } | |
178 | else if (cp_is_vtbl_member (type)) | |
179 | { | |
180 | /* Print vtbl's nicely. */ | |
181 | CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset); | |
182 | struct bound_minimal_symbol msymbol = | |
183 | lookup_minimal_symbol_by_pc (vt_address); | |
184 | ||
185 | /* If 'symbol_print' is set, we did the work above. */ | |
186 | if (!options->symbol_print | |
187 | && (msymbol.minsym != NULL) | |
188 | && (vt_address == BMSYMBOL_VALUE_ADDRESS (msymbol))) | |
189 | { | |
190 | if (want_space) | |
191 | fputs_filtered (" ", stream); | |
192 | fputs_filtered (" <", stream); | |
193 | fputs_filtered (MSYMBOL_PRINT_NAME (msymbol.minsym), stream); | |
194 | fputs_filtered (">", stream); | |
195 | want_space = 1; | |
196 | } | |
197 | ||
198 | if (vt_address && options->vtblprint) | |
199 | { | |
200 | struct value *vt_val; | |
be903358 | 201 | struct symbol *wsym = NULL; |
1033c33c | 202 | struct type *wtype; |
1033c33c SM |
203 | |
204 | if (want_space) | |
205 | fputs_filtered (" ", stream); | |
206 | ||
207 | if (msymbol.minsym != NULL) | |
de63c46b PA |
208 | { |
209 | const char *search_name | |
210 | = MSYMBOL_SEARCH_NAME (msymbol.minsym); | |
582942f4 | 211 | wsym = lookup_symbol_search_name (search_name, NULL, |
de63c46b PA |
212 | VAR_DOMAIN).symbol; |
213 | } | |
1033c33c SM |
214 | |
215 | if (wsym) | |
216 | { | |
217 | wtype = SYMBOL_TYPE (wsym); | |
218 | } | |
219 | else | |
220 | { | |
221 | wtype = unresolved_elttype; | |
222 | } | |
223 | vt_val = value_at (wtype, vt_address); | |
224 | common_val_print (vt_val, stream, recurse + 1, options, | |
225 | current_language); | |
226 | if (options->prettyformat) | |
227 | { | |
228 | fprintf_filtered (stream, "\n"); | |
229 | print_spaces_filtered (2 + 2 * recurse, stream); | |
230 | } | |
231 | } | |
232 | } | |
233 | } | |
234 | ||
0b6ef777 | 235 | /* c_val_print helper for TYPE_CODE_ARRAY. */ |
c906108c | 236 | |
0b6ef777 SM |
237 | static void |
238 | c_val_print_array (struct type *type, const gdb_byte *valaddr, | |
239 | int embedded_offset, CORE_ADDR address, | |
240 | struct ui_file *stream, int recurse, | |
e8b24d9f | 241 | struct value *original_value, |
0b6ef777 | 242 | const struct value_print_options *options) |
c906108c | 243 | { |
0b6ef777 SM |
244 | struct type *unresolved_elttype = TYPE_TARGET_TYPE (type); |
245 | struct type *elttype = check_typedef (unresolved_elttype); | |
3ae385af SM |
246 | struct gdbarch *arch = get_type_arch (type); |
247 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
c906108c | 248 | |
0b6ef777 | 249 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0) |
c906108c | 250 | { |
0b6ef777 SM |
251 | LONGEST low_bound, high_bound; |
252 | int eltlen, len; | |
253 | struct gdbarch *gdbarch = get_type_arch (type); | |
254 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
255 | unsigned int i = 0; /* Number of characters printed. */ | |
256 | ||
257 | if (!get_array_bounds (type, &low_bound, &high_bound)) | |
258 | error (_("Could not determine the array high bound")); | |
259 | ||
260 | eltlen = TYPE_LENGTH (elttype); | |
261 | len = high_bound - low_bound + 1; | |
262 | if (options->prettyformat_arrays) | |
c906108c | 263 | { |
0b6ef777 SM |
264 | print_spaces_filtered (2 + 2 * recurse, stream); |
265 | } | |
dbc98a8b | 266 | |
0b6ef777 SM |
267 | /* Print arrays of textual chars with a string syntax, as |
268 | long as the entire array is valid. */ | |
269 | if (c_textual_element_type (unresolved_elttype, | |
270 | options->format) | |
271 | && value_bytes_available (original_value, embedded_offset, | |
272 | TYPE_LENGTH (type)) | |
273 | && !value_bits_any_optimized_out (original_value, | |
274 | TARGET_CHAR_BIT * embedded_offset, | |
275 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
276 | { | |
277 | int force_ellipses = 0; | |
ea37ba09 | 278 | |
0b6ef777 SM |
279 | /* If requested, look for the first null char and only |
280 | print elements up to it. */ | |
281 | if (options->stop_print_at_null) | |
c906108c | 282 | { |
0b6ef777 SM |
283 | unsigned int temp_len; |
284 | ||
285 | for (temp_len = 0; | |
286 | (temp_len < len | |
287 | && temp_len < options->print_max | |
3ae385af SM |
288 | && extract_unsigned_integer (valaddr |
289 | + embedded_offset * unit_size | |
0b6ef777 SM |
290 | + temp_len * eltlen, |
291 | eltlen, byte_order) != 0); | |
292 | ++temp_len) | |
293 | ; | |
294 | ||
295 | /* Force LA_PRINT_STRING to print ellipses if | |
296 | we've printed the maximum characters and | |
297 | the next character is not \000. */ | |
298 | if (temp_len == options->print_max && temp_len < len) | |
c906108c | 299 | { |
0b6ef777 | 300 | ULONGEST val |
3ae385af SM |
301 | = extract_unsigned_integer (valaddr |
302 | + embedded_offset * unit_size | |
0b6ef777 SM |
303 | + temp_len * eltlen, |
304 | eltlen, byte_order); | |
305 | if (val != 0) | |
306 | force_ellipses = 1; | |
c906108c | 307 | } |
c5aa993b | 308 | |
0b6ef777 SM |
309 | len = temp_len; |
310 | } | |
311 | ||
312 | LA_PRINT_STRING (stream, unresolved_elttype, | |
3ae385af | 313 | valaddr + embedded_offset * unit_size, len, |
0b6ef777 SM |
314 | NULL, force_ellipses, options); |
315 | i = len; | |
316 | } | |
317 | else | |
318 | { | |
319 | fprintf_filtered (stream, "{"); | |
320 | /* If this is a virtual function table, print the 0th | |
321 | entry specially, and the rest of the members | |
322 | normally. */ | |
323 | if (cp_is_vtbl_ptr_type (elttype)) | |
324 | { | |
325 | i = 1; | |
326 | fprintf_filtered (stream, _("%d vtable entries"), | |
327 | len - 1); | |
c906108c SS |
328 | } |
329 | else | |
330 | { | |
0b6ef777 | 331 | i = 0; |
c906108c | 332 | } |
e8b24d9f | 333 | val_print_array_elements (type, embedded_offset, |
0b6ef777 SM |
334 | address, stream, |
335 | recurse, original_value, options, i); | |
336 | fprintf_filtered (stream, "}"); | |
c906108c | 337 | } |
0b6ef777 SM |
338 | } |
339 | else | |
340 | { | |
1033c33c SM |
341 | /* Array of unspecified length: treat like pointer to first elt. */ |
342 | print_unpacked_pointer (type, elttype, unresolved_elttype, valaddr, | |
343 | embedded_offset, address + embedded_offset, | |
344 | stream, recurse, options); | |
0b6ef777 SM |
345 | } |
346 | } | |
347 | ||
1c67f032 SM |
348 | /* c_val_print helper for TYPE_CODE_PTR. */ |
349 | ||
350 | static void | |
351 | c_val_print_ptr (struct type *type, const gdb_byte *valaddr, | |
352 | int embedded_offset, struct ui_file *stream, int recurse, | |
e8b24d9f | 353 | struct value *original_value, |
1c67f032 SM |
354 | const struct value_print_options *options) |
355 | { | |
3ae385af SM |
356 | struct gdbarch *arch = get_type_arch (type); |
357 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
358 | ||
1c67f032 SM |
359 | if (options->format && options->format != 's') |
360 | { | |
e8b24d9f | 361 | val_print_scalar_formatted (type, embedded_offset, |
1c67f032 SM |
362 | original_value, options, 0, stream); |
363 | } | |
364 | else if (options->vtblprint && cp_is_vtbl_ptr_type (type)) | |
365 | { | |
366 | /* Print the unmangled name if desired. */ | |
367 | /* Print vtable entry - we only get here if we ARE using | |
368 | -fvtable_thunks. (Otherwise, look under | |
369 | TYPE_CODE_STRUCT.) */ | |
370 | CORE_ADDR addr | |
371 | = extract_typed_address (valaddr + embedded_offset, type); | |
372 | struct gdbarch *gdbarch = get_type_arch (type); | |
373 | ||
374 | print_function_pointer_address (options, gdbarch, addr, stream); | |
375 | } | |
376 | else | |
377 | { | |
378 | struct type *unresolved_elttype = TYPE_TARGET_TYPE (type); | |
379 | struct type *elttype = check_typedef (unresolved_elttype); | |
3ae385af SM |
380 | CORE_ADDR addr = unpack_pointer (type, |
381 | valaddr + embedded_offset * unit_size); | |
1c67f032 SM |
382 | |
383 | print_unpacked_pointer (type, elttype, unresolved_elttype, valaddr, | |
384 | embedded_offset, addr, stream, recurse, options); | |
385 | } | |
386 | } | |
387 | ||
9e4f353c SM |
388 | /* c_val_print helper for TYPE_CODE_STRUCT. */ |
389 | ||
390 | static void | |
391 | c_val_print_struct (struct type *type, const gdb_byte *valaddr, | |
392 | int embedded_offset, CORE_ADDR address, | |
393 | struct ui_file *stream, int recurse, | |
e8b24d9f | 394 | struct value *original_value, |
9e4f353c SM |
395 | const struct value_print_options *options) |
396 | { | |
397 | if (options->vtblprint && cp_is_vtbl_ptr_type (type)) | |
398 | { | |
399 | /* Print the unmangled name if desired. */ | |
400 | /* Print vtable entry - we only get here if NOT using | |
401 | -fvtable_thunks. (Otherwise, look under | |
402 | TYPE_CODE_PTR.) */ | |
403 | struct gdbarch *gdbarch = get_type_arch (type); | |
404 | int offset = (embedded_offset | |
405 | + TYPE_FIELD_BITPOS (type, | |
406 | VTBL_FNADDR_OFFSET) / 8); | |
407 | struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET); | |
408 | CORE_ADDR addr = extract_typed_address (valaddr + offset, field_type); | |
409 | ||
410 | print_function_pointer_address (options, gdbarch, addr, stream); | |
411 | } | |
412 | else | |
413 | cp_print_value_fields_rtti (type, valaddr, | |
414 | embedded_offset, address, | |
415 | stream, recurse, | |
416 | original_value, options, | |
417 | NULL, 0); | |
418 | } | |
419 | ||
420 | /* c_val_print helper for TYPE_CODE_UNION. */ | |
421 | ||
422 | static void | |
423 | c_val_print_union (struct type *type, const gdb_byte *valaddr, | |
424 | int embedded_offset, CORE_ADDR address, | |
425 | struct ui_file *stream, int recurse, | |
e8b24d9f | 426 | struct value *original_value, |
9e4f353c SM |
427 | const struct value_print_options *options) |
428 | { | |
429 | if (recurse && !options->unionprint) | |
430 | { | |
431 | fprintf_filtered (stream, "{...}"); | |
432 | } | |
433 | else | |
434 | { | |
435 | c_val_print_struct (type, valaddr, embedded_offset, address, stream, | |
436 | recurse, original_value, options); | |
437 | } | |
438 | } | |
439 | ||
49f7fe28 SM |
440 | /* c_val_print helper for TYPE_CODE_INT. */ |
441 | ||
442 | static void | |
443 | c_val_print_int (struct type *type, struct type *unresolved_type, | |
444 | const gdb_byte *valaddr, int embedded_offset, | |
e8b24d9f | 445 | struct ui_file *stream, struct value *original_value, |
49f7fe28 SM |
446 | const struct value_print_options *options) |
447 | { | |
3ae385af SM |
448 | struct gdbarch *arch = get_type_arch (type); |
449 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
450 | ||
49f7fe28 SM |
451 | if (options->format || options->output_format) |
452 | { | |
453 | struct value_print_options opts = *options; | |
454 | ||
455 | opts.format = (options->format ? options->format | |
456 | : options->output_format); | |
e8b24d9f | 457 | val_print_scalar_formatted (type, embedded_offset, |
49f7fe28 SM |
458 | original_value, &opts, 0, stream); |
459 | } | |
460 | else | |
461 | { | |
f12f6bad TT |
462 | val_print_scalar_formatted (type, embedded_offset, |
463 | original_value, options, 0, stream); | |
49f7fe28 SM |
464 | /* C and C++ has no single byte int type, char is used |
465 | instead. Since we don't know whether the value is really | |
466 | intended to be used as an integer or a character, print | |
467 | the character equivalent as well. */ | |
468 | if (c_textual_element_type (unresolved_type, options->format)) | |
469 | { | |
470 | fputs_filtered (" ", stream); | |
3ae385af SM |
471 | LA_PRINT_CHAR (unpack_long (type, |
472 | valaddr + embedded_offset * unit_size), | |
49f7fe28 SM |
473 | unresolved_type, stream); |
474 | } | |
475 | } | |
476 | } | |
477 | ||
938c69a1 SM |
478 | /* c_val_print helper for TYPE_CODE_MEMBERPTR. */ |
479 | ||
480 | static void | |
481 | c_val_print_memberptr (struct type *type, const gdb_byte *valaddr, | |
482 | int embedded_offset, CORE_ADDR address, | |
483 | struct ui_file *stream, int recurse, | |
e8b24d9f | 484 | struct value *original_value, |
938c69a1 SM |
485 | const struct value_print_options *options) |
486 | { | |
487 | if (!options->format) | |
488 | { | |
489 | cp_print_class_member (valaddr + embedded_offset, type, stream, "&"); | |
490 | } | |
491 | else | |
492 | { | |
e8b24d9f | 493 | generic_val_print (type, embedded_offset, address, stream, |
938c69a1 SM |
494 | recurse, original_value, options, &c_decorations); |
495 | } | |
496 | } | |
497 | ||
0b6ef777 SM |
498 | /* See val_print for a description of the various parameters of this |
499 | function; they are identical. */ | |
500 | ||
501 | void | |
e8b24d9f | 502 | c_val_print (struct type *type, |
0b6ef777 SM |
503 | int embedded_offset, CORE_ADDR address, |
504 | struct ui_file *stream, int recurse, | |
e8b24d9f | 505 | struct value *original_value, |
0b6ef777 SM |
506 | const struct value_print_options *options) |
507 | { | |
0b6ef777 | 508 | struct type *unresolved_type = type; |
e8b24d9f | 509 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
0b6ef777 | 510 | |
f168693b | 511 | type = check_typedef (type); |
0b6ef777 SM |
512 | switch (TYPE_CODE (type)) |
513 | { | |
514 | case TYPE_CODE_ARRAY: | |
515 | c_val_print_array (type, valaddr, embedded_offset, address, stream, | |
516 | recurse, original_value, options); | |
1033c33c | 517 | break; |
c906108c | 518 | |
0d5de010 DJ |
519 | case TYPE_CODE_METHODPTR: |
520 | cplus_print_method_ptr (valaddr + embedded_offset, type, stream); | |
521 | break; | |
522 | ||
c906108c | 523 | case TYPE_CODE_PTR: |
1c67f032 SM |
524 | c_val_print_ptr (type, valaddr, embedded_offset, stream, recurse, |
525 | original_value, options); | |
c906108c SS |
526 | break; |
527 | ||
c906108c | 528 | case TYPE_CODE_UNION: |
9e4f353c SM |
529 | c_val_print_union (type, valaddr, embedded_offset, address, stream, |
530 | recurse, original_value, options); | |
531 | break; | |
532 | ||
c906108c | 533 | case TYPE_CODE_STRUCT: |
9e4f353c SM |
534 | c_val_print_struct (type, valaddr, embedded_offset, address, stream, |
535 | recurse, original_value, options); | |
c906108c SS |
536 | break; |
537 | ||
c906108c | 538 | case TYPE_CODE_INT: |
49f7fe28 SM |
539 | c_val_print_int (type, unresolved_type, valaddr, embedded_offset, stream, |
540 | original_value, options); | |
c906108c SS |
541 | break; |
542 | ||
e88acd96 | 543 | case TYPE_CODE_MEMBERPTR: |
938c69a1 SM |
544 | c_val_print_memberptr (type, valaddr, embedded_offset, address, stream, |
545 | recurse, original_value, options); | |
546 | break; | |
c906108c | 547 | |
e88acd96 | 548 | case TYPE_CODE_REF: |
e1cb3213 | 549 | case TYPE_CODE_RVALUE_REF: |
e88acd96 TT |
550 | case TYPE_CODE_ENUM: |
551 | case TYPE_CODE_FLAGS: | |
552 | case TYPE_CODE_FUNC: | |
553 | case TYPE_CODE_METHOD: | |
554 | case TYPE_CODE_BOOL: | |
555 | case TYPE_CODE_RANGE: | |
c906108c | 556 | case TYPE_CODE_FLT: |
7678ef8f | 557 | case TYPE_CODE_DECFLOAT: |
c906108c | 558 | case TYPE_CODE_VOID: |
c906108c | 559 | case TYPE_CODE_ERROR: |
c906108c | 560 | case TYPE_CODE_UNDEF: |
fca9e603 | 561 | case TYPE_CODE_COMPLEX: |
e88acd96 | 562 | case TYPE_CODE_CHAR: |
c906108c | 563 | default: |
e8b24d9f | 564 | generic_val_print (type, embedded_offset, address, |
e88acd96 TT |
565 | stream, recurse, original_value, options, |
566 | &c_decorations); | |
567 | break; | |
c906108c | 568 | } |
c906108c SS |
569 | } |
570 | \f | |
8e069a98 | 571 | void |
79a45b7d TT |
572 | c_value_print (struct value *val, struct ui_file *stream, |
573 | const struct value_print_options *options) | |
c906108c | 574 | { |
6c7a06a3 | 575 | struct type *type, *real_type, *val_type; |
6b850546 DT |
576 | int full, using_enc; |
577 | LONGEST top; | |
79a45b7d TT |
578 | struct value_print_options opts = *options; |
579 | ||
580 | opts.deref_ref = 1; | |
c5aa993b | 581 | |
c906108c SS |
582 | /* If it is a pointer, indicate what it points to. |
583 | ||
584 | Print type also if it is a reference. | |
585 | ||
586 | C++: if it is a member pointer, we will take care | |
587 | of that when we print it. */ | |
88750304 | 588 | |
6c7a06a3 TT |
589 | /* Preserve the original type before stripping typedefs. We prefer |
590 | to pass down the original type when possible, but for local | |
591 | checks it is better to look past the typedefs. */ | |
592 | val_type = value_type (val); | |
593 | type = check_typedef (val_type); | |
88750304 | 594 | |
e1cb3213 | 595 | if (TYPE_CODE (type) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (type)) |
c906108c SS |
596 | { |
597 | /* Hack: remove (char *) for char strings. Their | |
ea37ba09 | 598 | type is indicated by the quoted string anyway. |
96c07c5b | 599 | (Don't use c_textual_element_type here; quoted strings |
6c7a06a3 TT |
600 | are always exactly (char *), (wchar_t *), or the like. */ |
601 | if (TYPE_CODE (val_type) == TYPE_CODE_PTR | |
602 | && TYPE_NAME (val_type) == NULL | |
603 | && TYPE_NAME (TYPE_TARGET_TYPE (val_type)) != NULL | |
aff410f1 MS |
604 | && (strcmp (TYPE_NAME (TYPE_TARGET_TYPE (val_type)), |
605 | "char") == 0 | |
6c7a06a3 | 606 | || textual_name (TYPE_NAME (TYPE_TARGET_TYPE (val_type))))) |
c906108c | 607 | { |
aff410f1 | 608 | /* Print nothing. */ |
c906108c | 609 | } |
79a45b7d | 610 | else if (options->objectprint |
4753d33b | 611 | && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT)) |
c5aa993b | 612 | { |
a65cfae5 AV |
613 | int is_ref = TYPE_IS_REFERENCE (type); |
614 | enum type_code refcode = TYPE_CODE_UNDEF; | |
5f2e6b00 TT |
615 | |
616 | if (is_ref) | |
a65cfae5 AV |
617 | { |
618 | val = value_addr (val); | |
619 | refcode = TYPE_CODE (type); | |
620 | } | |
070ad9f0 | 621 | |
aff410f1 | 622 | /* Pointer to class, check real type of object. */ |
c906108c | 623 | fprintf_filtered (stream, "("); |
ec0a52e1 PA |
624 | |
625 | if (value_entirely_available (val)) | |
476350ba | 626 | { |
dfcee124 AG |
627 | real_type = value_rtti_indirect_type (val, &full, &top, |
628 | &using_enc); | |
ec0a52e1 PA |
629 | if (real_type) |
630 | { | |
631 | /* RTTI entry found. */ | |
dfcee124 AG |
632 | type = real_type; |
633 | ||
ec0a52e1 | 634 | /* Need to adjust pointer value. */ |
5f2e6b00 TT |
635 | val = value_from_pointer (real_type, |
636 | value_as_address (val) - top); | |
637 | ||
ec0a52e1 PA |
638 | /* Note: When we look up RTTI entries, we don't get |
639 | any information on const or volatile | |
640 | attributes. */ | |
641 | } | |
642 | } | |
476350ba MG |
643 | |
644 | if (is_ref) | |
645 | { | |
a65cfae5 | 646 | val = value_ref (value_ind (val), refcode); |
476350ba MG |
647 | type = value_type (val); |
648 | } | |
649 | ||
650 | type_print (type, "", stream, -1); | |
c906108c | 651 | fprintf_filtered (stream, ") "); |
6c7a06a3 | 652 | val_type = type; |
c5aa993b | 653 | } |
c906108c SS |
654 | else |
655 | { | |
c5aa993b | 656 | /* normal case */ |
c906108c | 657 | fprintf_filtered (stream, "("); |
88750304 | 658 | type_print (value_type (val), "", stream, -1); |
c906108c SS |
659 | fprintf_filtered (stream, ") "); |
660 | } | |
661 | } | |
88750304 | 662 | |
42be36b3 CT |
663 | if (!value_initialized (val)) |
664 | fprintf_filtered (stream, " [uninitialized] "); | |
665 | ||
4753d33b | 666 | if (options->objectprint && (TYPE_CODE (type) == TYPE_CODE_STRUCT)) |
c906108c | 667 | { |
aff410f1 | 668 | /* Attempt to determine real type of object. */ |
c906108c | 669 | real_type = value_rtti_type (val, &full, &top, &using_enc); |
c5aa993b JM |
670 | if (real_type) |
671 | { | |
aff410f1 MS |
672 | /* We have RTTI information, so use it. */ |
673 | val = value_full_object (val, real_type, | |
674 | full, top, using_enc); | |
c5aa993b JM |
675 | fprintf_filtered (stream, "(%s%s) ", |
676 | TYPE_NAME (real_type), | |
3d263c1d | 677 | full ? "" : _(" [incomplete object]")); |
aff410f1 MS |
678 | /* Print out object: enclosing type is same as real_type if |
679 | full. */ | |
8e069a98 | 680 | val_print (value_enclosing_type (val), |
e8b24d9f | 681 | 0, |
8e069a98 TT |
682 | value_address (val), stream, 0, |
683 | val, &opts, current_language); | |
684 | return; | |
aff410f1 MS |
685 | /* Note: When we look up RTTI entries, we don't get any |
686 | information on const or volatile attributes. */ | |
c5aa993b | 687 | } |
88750304 | 688 | else if (type != check_typedef (value_enclosing_type (val))) |
c5aa993b | 689 | { |
aff410f1 | 690 | /* No RTTI information, so let's do our best. */ |
c5aa993b | 691 | fprintf_filtered (stream, "(%s ?) ", |
4754a64e | 692 | TYPE_NAME (value_enclosing_type (val))); |
8e069a98 | 693 | val_print (value_enclosing_type (val), |
e8b24d9f | 694 | 0, |
8e069a98 TT |
695 | value_address (val), stream, 0, |
696 | val, &opts, current_language); | |
697 | return; | |
c5aa993b | 698 | } |
aff410f1 | 699 | /* Otherwise, we end up at the return outside this "if". */ |
c906108c | 700 | } |
c5aa993b | 701 | |
e8b24d9f | 702 | val_print (val_type, |
8e069a98 TT |
703 | value_embedded_offset (val), |
704 | value_address (val), | |
705 | stream, 0, | |
706 | val, &opts, current_language); | |
c906108c | 707 | } |