Commit | Line | Data |
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c906108c | 1 | /* Support for printing C values for GDB, the GNU debugger. |
1bac305b | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, |
7b6bb8da | 4 | 1998, 1999, 2000, 2001, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
4f2aea11 | 5 | Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
309367d4 | 23 | #include "gdb_string.h" |
c906108c SS |
24 | #include "symtab.h" |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "value.h" | |
c906108c SS |
28 | #include "valprint.h" |
29 | #include "language.h" | |
30 | #include "c-lang.h" | |
015a42b4 | 31 | #include "cp-abi.h" |
e2d0e7eb | 32 | #include "target.h" |
c906108c | 33 | \f |
c5aa993b | 34 | |
6e778545 PS |
35 | /* Print function pointer with inferior address ADDRESS onto stdio |
36 | stream STREAM. */ | |
37 | ||
38 | static void | |
aff410f1 MS |
39 | print_function_pointer_address (struct gdbarch *gdbarch, |
40 | CORE_ADDR address, | |
41 | struct ui_file *stream, | |
42 | int addressprint) | |
6e778545 | 43 | { |
aff410f1 MS |
44 | CORE_ADDR func_addr |
45 | = gdbarch_convert_from_func_ptr_addr (gdbarch, address, | |
46 | ¤t_target); | |
6e778545 | 47 | |
aff410f1 MS |
48 | /* If the function pointer is represented by a description, print |
49 | the address of the description. */ | |
6e778545 PS |
50 | if (addressprint && func_addr != address) |
51 | { | |
52 | fputs_filtered ("@", stream); | |
5af949e3 | 53 | fputs_filtered (paddress (gdbarch, address), stream); |
6e778545 PS |
54 | fputs_filtered (": ", stream); |
55 | } | |
5af949e3 | 56 | print_address_demangle (gdbarch, func_addr, stream, demangle); |
6e778545 PS |
57 | } |
58 | ||
59 | ||
96c07c5b | 60 | /* A helper for c_textual_element_type. This checks the name of the |
6c7a06a3 TT |
61 | typedef. This is bogus but it isn't apparent that the compiler |
62 | provides us the help we may need. */ | |
63 | ||
64 | static int | |
65 | textual_name (const char *name) | |
66 | { | |
67 | return (!strcmp (name, "wchar_t") | |
68 | || !strcmp (name, "char16_t") | |
69 | || !strcmp (name, "char32_t")); | |
70 | } | |
71 | ||
ea37ba09 DJ |
72 | /* Apply a heuristic to decide whether an array of TYPE or a pointer |
73 | to TYPE should be printed as a textual string. Return non-zero if | |
74 | it should, or zero if it should be treated as an array of integers | |
aff410f1 MS |
75 | or pointer to integers. FORMAT is the current format letter, or 0 |
76 | if none. | |
ea37ba09 DJ |
77 | |
78 | We guess that "char" is a character. Explicitly signed and | |
79 | unsigned character types are also characters. Integer data from | |
80 | vector types is not. The user can override this by using the /s | |
81 | format letter. */ | |
82 | ||
96c07c5b TT |
83 | int |
84 | c_textual_element_type (struct type *type, char format) | |
ea37ba09 | 85 | { |
85e306ed | 86 | struct type *true_type, *iter_type; |
ea37ba09 DJ |
87 | |
88 | if (format != 0 && format != 's') | |
89 | return 0; | |
90 | ||
85e306ed TT |
91 | /* We also rely on this for its side effect of setting up all the |
92 | typedef pointers. */ | |
93 | true_type = check_typedef (type); | |
94 | ||
ea37ba09 DJ |
95 | /* TYPE_CODE_CHAR is always textual. */ |
96 | if (TYPE_CODE (true_type) == TYPE_CODE_CHAR) | |
97 | return 1; | |
85e306ed | 98 | |
6c7a06a3 TT |
99 | /* Any other character-like types must be integral. */ |
100 | if (TYPE_CODE (true_type) != TYPE_CODE_INT) | |
101 | return 0; | |
102 | ||
85e306ed TT |
103 | /* We peel typedefs one by one, looking for a match. */ |
104 | iter_type = type; | |
105 | while (iter_type) | |
106 | { | |
107 | /* Check the name of the type. */ | |
108 | if (TYPE_NAME (iter_type) && textual_name (TYPE_NAME (iter_type))) | |
109 | return 1; | |
110 | ||
111 | if (TYPE_CODE (iter_type) != TYPE_CODE_TYPEDEF) | |
112 | break; | |
113 | ||
114 | /* Peel a single typedef. If the typedef doesn't have a target | |
115 | type, we use check_typedef and hope the result is ok -- it | |
116 | might be for C++, where wchar_t is a built-in type. */ | |
117 | if (TYPE_TARGET_TYPE (iter_type)) | |
118 | iter_type = TYPE_TARGET_TYPE (iter_type); | |
119 | else | |
120 | iter_type = check_typedef (iter_type); | |
121 | } | |
ea37ba09 DJ |
122 | |
123 | if (format == 's') | |
124 | { | |
aff410f1 MS |
125 | /* Print this as a string if we can manage it. For now, no wide |
126 | character support. */ | |
ea37ba09 DJ |
127 | if (TYPE_CODE (true_type) == TYPE_CODE_INT |
128 | && TYPE_LENGTH (true_type) == 1) | |
129 | return 1; | |
130 | } | |
131 | else | |
132 | { | |
133 | /* If a one-byte TYPE_CODE_INT is missing the not-a-character | |
134 | flag, then we treat it as text; otherwise, we assume it's | |
135 | being used as data. */ | |
136 | if (TYPE_CODE (true_type) == TYPE_CODE_INT | |
137 | && TYPE_LENGTH (true_type) == 1 | |
138 | && !TYPE_NOTTEXT (true_type)) | |
139 | return 1; | |
140 | } | |
141 | ||
142 | return 0; | |
143 | } | |
144 | ||
32b72a42 PA |
145 | /* See val_print for a description of the various parameters of this |
146 | function; they are identical. The semantics of the return value is | |
147 | also identical to val_print. */ | |
c906108c SS |
148 | |
149 | int | |
aff410f1 MS |
150 | c_val_print (struct type *type, const gdb_byte *valaddr, |
151 | int embedded_offset, CORE_ADDR address, | |
152 | struct ui_file *stream, int recurse, | |
0e03807e | 153 | const struct value *original_value, |
79a45b7d | 154 | const struct value_print_options *options) |
c906108c | 155 | { |
50810684 | 156 | struct gdbarch *gdbarch = get_type_arch (type); |
e17a4113 | 157 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
aff410f1 | 158 | unsigned int i = 0; /* Number of characters printed. */ |
c906108c | 159 | unsigned len; |
6c7a06a3 TT |
160 | struct type *elttype, *unresolved_elttype; |
161 | struct type *unresolved_type = type; | |
c906108c SS |
162 | unsigned eltlen; |
163 | LONGEST val; | |
164 | CORE_ADDR addr; | |
165 | ||
166 | CHECK_TYPEDEF (type); | |
167 | switch (TYPE_CODE (type)) | |
168 | { | |
169 | case TYPE_CODE_ARRAY: | |
6c7a06a3 TT |
170 | unresolved_elttype = TYPE_TARGET_TYPE (type); |
171 | elttype = check_typedef (unresolved_elttype); | |
172 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0) | |
c906108c | 173 | { |
dbc98a8b KW |
174 | LONGEST low_bound, high_bound; |
175 | ||
176 | if (!get_array_bounds (type, &low_bound, &high_bound)) | |
177 | error (_("Could not determine the array high bound")); | |
178 | ||
c906108c | 179 | eltlen = TYPE_LENGTH (elttype); |
dbc98a8b | 180 | len = high_bound - low_bound + 1; |
79a45b7d | 181 | if (options->prettyprint_arrays) |
c906108c SS |
182 | { |
183 | print_spaces_filtered (2 + 2 * recurse, stream); | |
184 | } | |
ea37ba09 | 185 | |
0e03807e TT |
186 | /* Print arrays of textual chars with a string syntax, as |
187 | long as the entire array is valid. */ | |
aff410f1 MS |
188 | if (c_textual_element_type (unresolved_elttype, |
189 | options->format) | |
9fc6d940 PA |
190 | && value_bytes_available (original_value, embedded_offset, |
191 | TYPE_LENGTH (type)) | |
0e03807e TT |
192 | && value_bits_valid (original_value, |
193 | TARGET_CHAR_BIT * embedded_offset, | |
194 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
c906108c | 195 | { |
aff410f1 MS |
196 | /* If requested, look for the first null char and only |
197 | print elements up to it. */ | |
79a45b7d | 198 | if (options->stop_print_at_null) |
c906108c | 199 | { |
745b8ca0 | 200 | unsigned int temp_len; |
c5aa993b | 201 | |
c906108c | 202 | for (temp_len = 0; |
6c7a06a3 TT |
203 | (temp_len < len |
204 | && temp_len < options->print_max | |
205 | && extract_unsigned_integer (valaddr + embedded_offset | |
206 | + temp_len * eltlen, | |
421d5d99 | 207 | eltlen, byte_order) != 0); |
6c7a06a3 TT |
208 | ++temp_len) |
209 | ; | |
c906108c SS |
210 | len = temp_len; |
211 | } | |
c5aa993b | 212 | |
6c7a06a3 | 213 | LA_PRINT_STRING (stream, unresolved_elttype, |
be759fcf PM |
214 | valaddr + embedded_offset, len, |
215 | NULL, 0, options); | |
c906108c SS |
216 | i = len; |
217 | } | |
218 | else | |
219 | { | |
220 | fprintf_filtered (stream, "{"); | |
221 | /* If this is a virtual function table, print the 0th | |
aff410f1 MS |
222 | entry specially, and the rest of the members |
223 | normally. */ | |
c906108c SS |
224 | if (cp_is_vtbl_ptr_type (elttype)) |
225 | { | |
226 | i = 1; | |
aff410f1 MS |
227 | fprintf_filtered (stream, _("%d vtable entries"), |
228 | len - 1); | |
c906108c SS |
229 | } |
230 | else | |
231 | { | |
232 | i = 0; | |
233 | } | |
490f124f PA |
234 | val_print_array_elements (type, valaddr, embedded_offset, |
235 | address, stream, | |
236 | recurse, original_value, options, i); | |
c906108c SS |
237 | fprintf_filtered (stream, "}"); |
238 | } | |
239 | break; | |
240 | } | |
aff410f1 MS |
241 | /* Array of unspecified length: treat like pointer to first |
242 | elt. */ | |
13163d80 | 243 | addr = address + embedded_offset; |
c906108c SS |
244 | goto print_unpacked_pointer; |
245 | ||
0d5de010 | 246 | case TYPE_CODE_MEMBERPTR: |
79a45b7d | 247 | if (options->format) |
0d5de010 | 248 | { |
ab2188aa PA |
249 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
250 | original_value, options, 0, stream); | |
0d5de010 DJ |
251 | break; |
252 | } | |
ad4820ab | 253 | cp_print_class_member (valaddr + embedded_offset, type, stream, "&"); |
0d5de010 DJ |
254 | break; |
255 | ||
256 | case TYPE_CODE_METHODPTR: | |
257 | cplus_print_method_ptr (valaddr + embedded_offset, type, stream); | |
258 | break; | |
259 | ||
c906108c | 260 | case TYPE_CODE_PTR: |
79a45b7d | 261 | if (options->format && options->format != 's') |
c906108c | 262 | { |
ab2188aa PA |
263 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
264 | original_value, options, 0, stream); | |
c906108c SS |
265 | break; |
266 | } | |
79a45b7d | 267 | if (options->vtblprint && cp_is_vtbl_ptr_type (type)) |
c906108c | 268 | { |
c5aa993b | 269 | /* Print the unmangled name if desired. */ |
c906108c | 270 | /* Print vtable entry - we only get here if we ARE using |
aff410f1 MS |
271 | -fvtable_thunks. (Otherwise, look under |
272 | TYPE_CODE_STRUCT.) */ | |
4478b372 JB |
273 | CORE_ADDR addr |
274 | = extract_typed_address (valaddr + embedded_offset, type); | |
c5504eaf | 275 | |
50810684 UW |
276 | print_function_pointer_address (gdbarch, addr, stream, |
277 | options->addressprint); | |
c906108c SS |
278 | break; |
279 | } | |
6c7a06a3 TT |
280 | unresolved_elttype = TYPE_TARGET_TYPE (type); |
281 | elttype = check_typedef (unresolved_elttype); | |
c906108c SS |
282 | { |
283 | addr = unpack_pointer (type, valaddr + embedded_offset); | |
284 | print_unpacked_pointer: | |
c906108c SS |
285 | |
286 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
287 | { | |
288 | /* Try to print what function it points to. */ | |
50810684 | 289 | print_function_pointer_address (gdbarch, addr, stream, |
79a45b7d | 290 | options->addressprint); |
aff410f1 MS |
291 | /* Return value is irrelevant except for string |
292 | pointers. */ | |
c906108c SS |
293 | return (0); |
294 | } | |
295 | ||
79a45b7d | 296 | if (options->addressprint) |
5af949e3 | 297 | fputs_filtered (paddress (gdbarch, addr), stream); |
c906108c | 298 | |
ea37ba09 | 299 | /* For a pointer to a textual type, also print the string |
c906108c | 300 | pointed to, unless pointer is null. */ |
c906108c | 301 | |
aff410f1 MS |
302 | if (c_textual_element_type (unresolved_elttype, |
303 | options->format) | |
79a45b7d | 304 | && addr != 0) |
c906108c | 305 | { |
aff410f1 MS |
306 | i = val_print_string (unresolved_elttype, NULL, |
307 | addr, -1, | |
308 | stream, options); | |
c906108c | 309 | } |
c5aa993b JM |
310 | else if (cp_is_vtbl_member (type)) |
311 | { | |
aff410f1 MS |
312 | /* Print vtbl's nicely. */ |
313 | CORE_ADDR vt_address = unpack_pointer (type, | |
314 | valaddr | |
315 | + embedded_offset); | |
c906108c SS |
316 | |
317 | struct minimal_symbol *msymbol = | |
c5aa993b | 318 | lookup_minimal_symbol_by_pc (vt_address); |
5aafa1cc PM |
319 | if ((msymbol != NULL) |
320 | && (vt_address == SYMBOL_VALUE_ADDRESS (msymbol))) | |
c906108c SS |
321 | { |
322 | fputs_filtered (" <", stream); | |
de5ad195 | 323 | fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream); |
c906108c SS |
324 | fputs_filtered (">", stream); |
325 | } | |
79a45b7d | 326 | if (vt_address && options->vtblprint) |
c5aa993b | 327 | { |
6943961c | 328 | struct value *vt_val; |
c5aa993b JM |
329 | struct symbol *wsym = (struct symbol *) NULL; |
330 | struct type *wtype; | |
c5aa993b | 331 | struct block *block = (struct block *) NULL; |
c906108c SS |
332 | int is_this_fld; |
333 | ||
334 | if (msymbol != NULL) | |
aff410f1 MS |
335 | wsym = lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), |
336 | block, VAR_DOMAIN, | |
337 | &is_this_fld); | |
c5aa993b | 338 | |
c906108c SS |
339 | if (wsym) |
340 | { | |
c5aa993b | 341 | wtype = SYMBOL_TYPE (wsym); |
c906108c SS |
342 | } |
343 | else | |
344 | { | |
6c7a06a3 | 345 | wtype = unresolved_elttype; |
c906108c | 346 | } |
00a4c844 | 347 | vt_val = value_at (wtype, vt_address); |
aff410f1 MS |
348 | common_val_print (vt_val, stream, recurse + 1, |
349 | options, current_language); | |
79a45b7d | 350 | if (options->pretty) |
c906108c SS |
351 | { |
352 | fprintf_filtered (stream, "\n"); | |
353 | print_spaces_filtered (2 + 2 * recurse, stream); | |
354 | } | |
c5aa993b JM |
355 | } |
356 | } | |
c906108c | 357 | |
aff410f1 MS |
358 | /* Return number of characters printed, including the |
359 | terminating '\0' if we reached the end. val_print_string | |
360 | takes care including the terminating '\0' if | |
361 | necessary. */ | |
c906108c SS |
362 | return i; |
363 | } | |
364 | break; | |
365 | ||
c906108c SS |
366 | case TYPE_CODE_REF: |
367 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
79a45b7d | 368 | if (options->addressprint) |
c5aa993b | 369 | { |
4478b372 JB |
370 | CORE_ADDR addr |
371 | = extract_typed_address (valaddr + embedded_offset, type); | |
c5504eaf | 372 | |
c906108c | 373 | fprintf_filtered (stream, "@"); |
5af949e3 | 374 | fputs_filtered (paddress (gdbarch, addr), stream); |
79a45b7d | 375 | if (options->deref_ref) |
c906108c | 376 | fputs_filtered (": ", stream); |
c5aa993b | 377 | } |
c906108c | 378 | /* De-reference the reference. */ |
79a45b7d | 379 | if (options->deref_ref) |
c906108c SS |
380 | { |
381 | if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF) | |
382 | { | |
6943961c | 383 | struct value *deref_val = |
c5504eaf MS |
384 | value_at |
385 | (TYPE_TARGET_TYPE (type), | |
386 | unpack_pointer (type, valaddr + embedded_offset)); | |
387 | ||
79a45b7d TT |
388 | common_val_print (deref_val, stream, recurse, options, |
389 | current_language); | |
c906108c SS |
390 | } |
391 | else | |
392 | fputs_filtered ("???", stream); | |
393 | } | |
394 | break; | |
395 | ||
396 | case TYPE_CODE_UNION: | |
79a45b7d | 397 | if (recurse && !options->unionprint) |
c906108c SS |
398 | { |
399 | fprintf_filtered (stream, "{...}"); | |
400 | break; | |
401 | } | |
402 | /* Fall through. */ | |
403 | case TYPE_CODE_STRUCT: | |
0963b4bd | 404 | /*FIXME: Abstract this away. */ |
79a45b7d | 405 | if (options->vtblprint && cp_is_vtbl_ptr_type (type)) |
c906108c | 406 | { |
c5aa993b | 407 | /* Print the unmangled name if desired. */ |
c906108c | 408 | /* Print vtable entry - we only get here if NOT using |
aff410f1 MS |
409 | -fvtable_thunks. (Otherwise, look under |
410 | TYPE_CODE_PTR.) */ | |
411 | int offset = (embedded_offset | |
412 | + TYPE_FIELD_BITPOS (type, | |
413 | VTBL_FNADDR_OFFSET) / 8); | |
414 | struct type *field_type = TYPE_FIELD_TYPE (type, | |
415 | VTBL_FNADDR_OFFSET); | |
4478b372 JB |
416 | CORE_ADDR addr |
417 | = extract_typed_address (valaddr + offset, field_type); | |
418 | ||
50810684 UW |
419 | print_function_pointer_address (gdbarch, addr, stream, |
420 | options->addressprint); | |
c906108c SS |
421 | } |
422 | else | |
edf3d5f3 | 423 | cp_print_value_fields_rtti (type, valaddr, |
aff410f1 MS |
424 | embedded_offset, address, |
425 | stream, recurse, | |
426 | original_value, options, | |
427 | NULL, 0); | |
c906108c SS |
428 | break; |
429 | ||
430 | case TYPE_CODE_ENUM: | |
79a45b7d | 431 | if (options->format) |
c906108c | 432 | { |
ab2188aa PA |
433 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
434 | original_value, options, 0, stream); | |
c906108c SS |
435 | break; |
436 | } | |
437 | len = TYPE_NFIELDS (type); | |
438 | val = unpack_long (type, valaddr + embedded_offset); | |
439 | for (i = 0; i < len; i++) | |
440 | { | |
441 | QUIT; | |
442 | if (val == TYPE_FIELD_BITPOS (type, i)) | |
443 | { | |
444 | break; | |
445 | } | |
446 | } | |
447 | if (i < len) | |
448 | { | |
449 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
450 | } | |
451 | else | |
452 | { | |
453 | print_longest (stream, 'd', 0, val); | |
454 | } | |
455 | break; | |
456 | ||
4f2aea11 | 457 | case TYPE_CODE_FLAGS: |
79a45b7d | 458 | if (options->format) |
ab2188aa PA |
459 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
460 | original_value, options, 0, stream); | |
4f2aea11 | 461 | else |
aff410f1 MS |
462 | val_print_type_code_flags (type, valaddr + embedded_offset, |
463 | stream); | |
4f2aea11 MK |
464 | break; |
465 | ||
c906108c | 466 | case TYPE_CODE_FUNC: |
0d5de010 | 467 | case TYPE_CODE_METHOD: |
79a45b7d | 468 | if (options->format) |
c906108c | 469 | { |
ab2188aa PA |
470 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
471 | original_value, options, 0, stream); | |
c906108c SS |
472 | break; |
473 | } | |
aff410f1 MS |
474 | /* FIXME, we should consider, at least for ANSI C language, |
475 | eliminating the distinction made between FUNCs and POINTERs | |
476 | to FUNCs. */ | |
c906108c SS |
477 | fprintf_filtered (stream, "{"); |
478 | type_print (type, "", stream, -1); | |
479 | fprintf_filtered (stream, "} "); | |
480 | /* Try to print what function it points to, and its address. */ | |
5af949e3 | 481 | print_address_demangle (gdbarch, address, stream, demangle); |
c906108c SS |
482 | break; |
483 | ||
484 | case TYPE_CODE_BOOL: | |
79a45b7d TT |
485 | if (options->format || options->output_format) |
486 | { | |
487 | struct value_print_options opts = *options; | |
488 | opts.format = (options->format ? options->format | |
489 | : options->output_format); | |
ab2188aa PA |
490 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
491 | original_value, &opts, 0, stream); | |
79a45b7d | 492 | } |
c906108c SS |
493 | else |
494 | { | |
495 | val = unpack_long (type, valaddr + embedded_offset); | |
496 | if (val == 0) | |
497 | fputs_filtered ("false", stream); | |
498 | else if (val == 1) | |
499 | fputs_filtered ("true", stream); | |
500 | else | |
501 | print_longest (stream, 'd', 0, val); | |
502 | } | |
503 | break; | |
504 | ||
505 | case TYPE_CODE_RANGE: | |
506 | /* FIXME: create_range_type does not set the unsigned bit in a | |
aff410f1 MS |
507 | range type (I think it probably should copy it from the |
508 | target type), so we won't print values which are too large to | |
c5aa993b | 509 | fit in a signed integer correctly. */ |
c906108c | 510 | /* FIXME: Doesn't handle ranges of enums correctly. (Can't just |
aff410f1 MS |
511 | print with the target type, though, because the size of our |
512 | type and the target type might differ). */ | |
c906108c SS |
513 | /* FALLTHROUGH */ |
514 | ||
515 | case TYPE_CODE_INT: | |
79a45b7d | 516 | if (options->format || options->output_format) |
c906108c | 517 | { |
79a45b7d | 518 | struct value_print_options opts = *options; |
c5504eaf | 519 | |
79a45b7d TT |
520 | opts.format = (options->format ? options->format |
521 | : options->output_format); | |
ab2188aa PA |
522 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
523 | original_value, &opts, 0, stream); | |
c906108c SS |
524 | } |
525 | else | |
526 | { | |
aff410f1 MS |
527 | val_print_type_code_int (type, valaddr + embedded_offset, |
528 | stream); | |
529 | /* C and C++ has no single byte int type, char is used | |
530 | instead. Since we don't know whether the value is really | |
531 | intended to be used as an integer or a character, print | |
532 | the character equivalent as well. */ | |
96c07c5b | 533 | if (c_textual_element_type (unresolved_type, options->format)) |
c906108c SS |
534 | { |
535 | fputs_filtered (" ", stream); | |
447b483c | 536 | LA_PRINT_CHAR (unpack_long (type, valaddr + embedded_offset), |
6c7a06a3 | 537 | unresolved_type, stream); |
c906108c SS |
538 | } |
539 | } | |
540 | break; | |
541 | ||
542 | case TYPE_CODE_CHAR: | |
79a45b7d | 543 | if (options->format || options->output_format) |
c906108c | 544 | { |
79a45b7d TT |
545 | struct value_print_options opts = *options; |
546 | opts.format = (options->format ? options->format | |
547 | : options->output_format); | |
ab2188aa PA |
548 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
549 | original_value, &opts, 0, stream); | |
c906108c SS |
550 | } |
551 | else | |
552 | { | |
96baa820 JM |
553 | val = unpack_long (type, valaddr + embedded_offset); |
554 | if (TYPE_UNSIGNED (type)) | |
555 | fprintf_filtered (stream, "%u", (unsigned int) val); | |
556 | else | |
557 | fprintf_filtered (stream, "%d", (int) val); | |
c906108c | 558 | fputs_filtered (" ", stream); |
447b483c | 559 | LA_PRINT_CHAR (val, unresolved_type, stream); |
c906108c SS |
560 | } |
561 | break; | |
562 | ||
563 | case TYPE_CODE_FLT: | |
79a45b7d | 564 | if (options->format) |
c906108c | 565 | { |
ab2188aa PA |
566 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
567 | original_value, options, 0, stream); | |
c906108c SS |
568 | } |
569 | else | |
570 | { | |
571 | print_floating (valaddr + embedded_offset, type, stream); | |
572 | } | |
573 | break; | |
574 | ||
7678ef8f | 575 | case TYPE_CODE_DECFLOAT: |
79a45b7d | 576 | if (options->format) |
ab2188aa PA |
577 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
578 | original_value, options, 0, stream); | |
7678ef8f | 579 | else |
aff410f1 MS |
580 | print_decimal_floating (valaddr + embedded_offset, |
581 | type, stream); | |
7678ef8f TJB |
582 | break; |
583 | ||
c906108c SS |
584 | case TYPE_CODE_VOID: |
585 | fprintf_filtered (stream, "void"); | |
586 | break; | |
587 | ||
588 | case TYPE_CODE_ERROR: | |
b00fdb78 | 589 | fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type)); |
c906108c SS |
590 | break; |
591 | ||
592 | case TYPE_CODE_UNDEF: | |
aff410f1 MS |
593 | /* This happens (without TYPE_FLAG_STUB set) on systems which |
594 | don't use dbx xrefs (NO_DBX_XREFS in gcc) if a file has a | |
595 | "struct foo *bar" and no complete type for struct foo in that | |
596 | file. */ | |
3d263c1d | 597 | fprintf_filtered (stream, _("<incomplete type>")); |
c906108c SS |
598 | break; |
599 | ||
fca9e603 | 600 | case TYPE_CODE_COMPLEX: |
79a45b7d | 601 | if (options->format) |
ab2188aa PA |
602 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), |
603 | valaddr, embedded_offset, | |
604 | original_value, options, 0, stream); | |
fca9e603 | 605 | else |
aff410f1 MS |
606 | print_floating (valaddr + embedded_offset, |
607 | TYPE_TARGET_TYPE (type), | |
fca9e603 DJ |
608 | stream); |
609 | fprintf_filtered (stream, " + "); | |
79a45b7d | 610 | if (options->format) |
ab2188aa PA |
611 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), |
612 | valaddr, | |
613 | embedded_offset | |
614 | + TYPE_LENGTH (TYPE_TARGET_TYPE (type)), | |
615 | original_value, | |
616 | options, 0, stream); | |
fca9e603 DJ |
617 | else |
618 | print_floating (valaddr + embedded_offset | |
619 | + TYPE_LENGTH (TYPE_TARGET_TYPE (type)), | |
620 | TYPE_TARGET_TYPE (type), | |
621 | stream); | |
622 | fprintf_filtered (stream, " * I"); | |
623 | break; | |
624 | ||
c906108c | 625 | default: |
aff410f1 MS |
626 | error (_("Invalid C/C++ type code %d in symbol table."), |
627 | TYPE_CODE (type)); | |
c906108c SS |
628 | } |
629 | gdb_flush (stream); | |
630 | return (0); | |
631 | } | |
632 | \f | |
633 | int | |
79a45b7d TT |
634 | c_value_print (struct value *val, struct ui_file *stream, |
635 | const struct value_print_options *options) | |
c906108c | 636 | { |
6c7a06a3 | 637 | struct type *type, *real_type, *val_type; |
c906108c | 638 | int full, top, using_enc; |
79a45b7d TT |
639 | struct value_print_options opts = *options; |
640 | ||
641 | opts.deref_ref = 1; | |
c5aa993b | 642 | |
c906108c SS |
643 | /* If it is a pointer, indicate what it points to. |
644 | ||
645 | Print type also if it is a reference. | |
646 | ||
647 | C++: if it is a member pointer, we will take care | |
648 | of that when we print it. */ | |
88750304 | 649 | |
6c7a06a3 TT |
650 | /* Preserve the original type before stripping typedefs. We prefer |
651 | to pass down the original type when possible, but for local | |
652 | checks it is better to look past the typedefs. */ | |
653 | val_type = value_type (val); | |
654 | type = check_typedef (val_type); | |
88750304 DJ |
655 | |
656 | if (TYPE_CODE (type) == TYPE_CODE_PTR | |
657 | || TYPE_CODE (type) == TYPE_CODE_REF) | |
c906108c SS |
658 | { |
659 | /* Hack: remove (char *) for char strings. Their | |
ea37ba09 | 660 | type is indicated by the quoted string anyway. |
96c07c5b | 661 | (Don't use c_textual_element_type here; quoted strings |
6c7a06a3 TT |
662 | are always exactly (char *), (wchar_t *), or the like. */ |
663 | if (TYPE_CODE (val_type) == TYPE_CODE_PTR | |
664 | && TYPE_NAME (val_type) == NULL | |
665 | && TYPE_NAME (TYPE_TARGET_TYPE (val_type)) != NULL | |
aff410f1 MS |
666 | && (strcmp (TYPE_NAME (TYPE_TARGET_TYPE (val_type)), |
667 | "char") == 0 | |
6c7a06a3 | 668 | || textual_name (TYPE_NAME (TYPE_TARGET_TYPE (val_type))))) |
c906108c | 669 | { |
aff410f1 | 670 | /* Print nothing. */ |
c906108c | 671 | } |
79a45b7d TT |
672 | else if (options->objectprint |
673 | && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS)) | |
c5aa993b | 674 | { |
070ad9f0 DB |
675 | |
676 | if (TYPE_CODE(type) == TYPE_CODE_REF) | |
677 | { | |
678 | /* Copy value, change to pointer, so we don't get an | |
aff410f1 MS |
679 | error about a non-pointer type in |
680 | value_rtti_target_type. */ | |
6943961c | 681 | struct value *temparg; |
070ad9f0 | 682 | temparg=value_copy(val); |
aff410f1 MS |
683 | deprecated_set_value_type |
684 | (temparg, lookup_pointer_type (TYPE_TARGET_TYPE (type))); | |
685 | val = temparg; | |
070ad9f0 | 686 | } |
aff410f1 | 687 | /* Pointer to class, check real type of object. */ |
c906108c | 688 | fprintf_filtered (stream, "("); |
ec0a52e1 PA |
689 | |
690 | if (value_entirely_available (val)) | |
691 | { | |
692 | real_type = value_rtti_target_type (val, &full, &top, &using_enc); | |
693 | if (real_type) | |
694 | { | |
695 | /* RTTI entry found. */ | |
696 | if (TYPE_CODE (type) == TYPE_CODE_PTR) | |
697 | { | |
698 | /* Create a pointer type pointing to the real | |
699 | type. */ | |
700 | type = lookup_pointer_type (real_type); | |
701 | } | |
702 | else | |
703 | { | |
704 | /* Create a reference type referencing the real | |
705 | type. */ | |
706 | type = lookup_reference_type (real_type); | |
707 | } | |
708 | /* Need to adjust pointer value. */ | |
709 | val = value_from_pointer (type, value_as_address (val) - top); | |
710 | ||
711 | /* Note: When we look up RTTI entries, we don't get | |
712 | any information on const or volatile | |
713 | attributes. */ | |
714 | } | |
715 | } | |
c4093a6a | 716 | type_print (type, "", stream, -1); |
c906108c | 717 | fprintf_filtered (stream, ") "); |
6c7a06a3 | 718 | val_type = type; |
c5aa993b | 719 | } |
c906108c SS |
720 | else |
721 | { | |
c5aa993b | 722 | /* normal case */ |
c906108c | 723 | fprintf_filtered (stream, "("); |
88750304 | 724 | type_print (value_type (val), "", stream, -1); |
c906108c SS |
725 | fprintf_filtered (stream, ") "); |
726 | } | |
727 | } | |
88750304 | 728 | |
42be36b3 CT |
729 | if (!value_initialized (val)) |
730 | fprintf_filtered (stream, " [uninitialized] "); | |
731 | ||
79a45b7d | 732 | if (options->objectprint && (TYPE_CODE (type) == TYPE_CODE_CLASS)) |
c906108c | 733 | { |
aff410f1 | 734 | /* Attempt to determine real type of object. */ |
c906108c | 735 | real_type = value_rtti_type (val, &full, &top, &using_enc); |
c5aa993b JM |
736 | if (real_type) |
737 | { | |
aff410f1 MS |
738 | /* We have RTTI information, so use it. */ |
739 | val = value_full_object (val, real_type, | |
740 | full, top, using_enc); | |
c5aa993b JM |
741 | fprintf_filtered (stream, "(%s%s) ", |
742 | TYPE_NAME (real_type), | |
3d263c1d | 743 | full ? "" : _(" [incomplete object]")); |
aff410f1 MS |
744 | /* Print out object: enclosing type is same as real_type if |
745 | full. */ | |
46615f07 | 746 | return val_print (value_enclosing_type (val), |
0e03807e | 747 | value_contents_for_printing (val), 0, |
42ae5230 | 748 | value_address (val), stream, 0, |
0e03807e | 749 | val, &opts, current_language); |
aff410f1 MS |
750 | /* Note: When we look up RTTI entries, we don't get any |
751 | information on const or volatile attributes. */ | |
c5aa993b | 752 | } |
88750304 | 753 | else if (type != check_typedef (value_enclosing_type (val))) |
c5aa993b | 754 | { |
aff410f1 | 755 | /* No RTTI information, so let's do our best. */ |
c5aa993b | 756 | fprintf_filtered (stream, "(%s ?) ", |
4754a64e | 757 | TYPE_NAME (value_enclosing_type (val))); |
46615f07 | 758 | return val_print (value_enclosing_type (val), |
0e03807e | 759 | value_contents_for_printing (val), 0, |
42ae5230 | 760 | value_address (val), stream, 0, |
0e03807e | 761 | val, &opts, current_language); |
c5aa993b | 762 | } |
aff410f1 | 763 | /* Otherwise, we end up at the return outside this "if". */ |
c906108c | 764 | } |
c5aa993b | 765 | |
0e03807e | 766 | return val_print (val_type, value_contents_for_printing (val), |
13c3b5f5 | 767 | value_embedded_offset (val), |
42ae5230 | 768 | value_address (val), |
0e03807e TT |
769 | stream, 0, |
770 | val, &opts, current_language); | |
c906108c | 771 | } |