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, |
4c38e0a4 | 4 | 1998, 1999, 2000, 2001, 2003, 2005, 2006, 2007, 2008, 2009, 2010 |
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 | |
50810684 UW |
39 | print_function_pointer_address (struct gdbarch *gdbarch, CORE_ADDR address, |
40 | struct ui_file *stream, int addressprint) | |
6e778545 | 41 | { |
50810684 | 42 | CORE_ADDR func_addr = gdbarch_convert_from_func_ptr_addr (gdbarch, address, |
e2d0e7eb | 43 | ¤t_target); |
6e778545 PS |
44 | |
45 | /* If the function pointer is represented by a description, print the | |
46 | address of the description. */ | |
47 | if (addressprint && func_addr != address) | |
48 | { | |
49 | fputs_filtered ("@", stream); | |
5af949e3 | 50 | fputs_filtered (paddress (gdbarch, address), stream); |
6e778545 PS |
51 | fputs_filtered (": ", stream); |
52 | } | |
5af949e3 | 53 | print_address_demangle (gdbarch, func_addr, stream, demangle); |
6e778545 PS |
54 | } |
55 | ||
56 | ||
96c07c5b | 57 | /* A helper for c_textual_element_type. This checks the name of the |
6c7a06a3 TT |
58 | typedef. This is bogus but it isn't apparent that the compiler |
59 | provides us the help we may need. */ | |
60 | ||
61 | static int | |
62 | textual_name (const char *name) | |
63 | { | |
64 | return (!strcmp (name, "wchar_t") | |
65 | || !strcmp (name, "char16_t") | |
66 | || !strcmp (name, "char32_t")); | |
67 | } | |
68 | ||
ea37ba09 DJ |
69 | /* Apply a heuristic to decide whether an array of TYPE or a pointer |
70 | to TYPE should be printed as a textual string. Return non-zero if | |
71 | it should, or zero if it should be treated as an array of integers | |
72 | or pointer to integers. FORMAT is the current format letter, | |
73 | or 0 if none. | |
74 | ||
75 | We guess that "char" is a character. Explicitly signed and | |
76 | unsigned character types are also characters. Integer data from | |
77 | vector types is not. The user can override this by using the /s | |
78 | format letter. */ | |
79 | ||
96c07c5b TT |
80 | int |
81 | c_textual_element_type (struct type *type, char format) | |
ea37ba09 | 82 | { |
85e306ed | 83 | struct type *true_type, *iter_type; |
ea37ba09 DJ |
84 | |
85 | if (format != 0 && format != 's') | |
86 | return 0; | |
87 | ||
85e306ed TT |
88 | /* We also rely on this for its side effect of setting up all the |
89 | typedef pointers. */ | |
90 | true_type = check_typedef (type); | |
91 | ||
ea37ba09 DJ |
92 | /* TYPE_CODE_CHAR is always textual. */ |
93 | if (TYPE_CODE (true_type) == TYPE_CODE_CHAR) | |
94 | return 1; | |
85e306ed | 95 | |
6c7a06a3 TT |
96 | /* Any other character-like types must be integral. */ |
97 | if (TYPE_CODE (true_type) != TYPE_CODE_INT) | |
98 | return 0; | |
99 | ||
85e306ed TT |
100 | /* We peel typedefs one by one, looking for a match. */ |
101 | iter_type = type; | |
102 | while (iter_type) | |
103 | { | |
104 | /* Check the name of the type. */ | |
105 | if (TYPE_NAME (iter_type) && textual_name (TYPE_NAME (iter_type))) | |
106 | return 1; | |
107 | ||
108 | if (TYPE_CODE (iter_type) != TYPE_CODE_TYPEDEF) | |
109 | break; | |
110 | ||
111 | /* Peel a single typedef. If the typedef doesn't have a target | |
112 | type, we use check_typedef and hope the result is ok -- it | |
113 | might be for C++, where wchar_t is a built-in type. */ | |
114 | if (TYPE_TARGET_TYPE (iter_type)) | |
115 | iter_type = TYPE_TARGET_TYPE (iter_type); | |
116 | else | |
117 | iter_type = check_typedef (iter_type); | |
118 | } | |
ea37ba09 DJ |
119 | |
120 | if (format == 's') | |
121 | { | |
122 | /* Print this as a string if we can manage it. For now, no | |
123 | wide character support. */ | |
124 | if (TYPE_CODE (true_type) == TYPE_CODE_INT | |
125 | && TYPE_LENGTH (true_type) == 1) | |
126 | return 1; | |
127 | } | |
128 | else | |
129 | { | |
130 | /* If a one-byte TYPE_CODE_INT is missing the not-a-character | |
131 | flag, then we treat it as text; otherwise, we assume it's | |
132 | being used as data. */ | |
133 | if (TYPE_CODE (true_type) == TYPE_CODE_INT | |
134 | && TYPE_LENGTH (true_type) == 1 | |
135 | && !TYPE_NOTTEXT (true_type)) | |
136 | return 1; | |
137 | } | |
138 | ||
139 | return 0; | |
140 | } | |
141 | ||
142 | ||
c906108c SS |
143 | /* Print data of type TYPE located at VALADDR (within GDB), which came from |
144 | the inferior at address ADDRESS, onto stdio stream STREAM according to | |
79a45b7d | 145 | OPTIONS. The data at VALADDR is in target byte order. |
c906108c SS |
146 | |
147 | If the data are a string pointer, returns the number of string characters | |
79a45b7d | 148 | printed. */ |
c906108c SS |
149 | |
150 | int | |
fc1a4b47 | 151 | c_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, |
79a45b7d TT |
152 | CORE_ADDR address, struct ui_file *stream, int recurse, |
153 | const struct value_print_options *options) | |
c906108c | 154 | { |
50810684 | 155 | struct gdbarch *gdbarch = get_type_arch (type); |
e17a4113 | 156 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
52f0bd74 | 157 | unsigned int i = 0; /* Number of characters printed */ |
c906108c | 158 | unsigned len; |
6c7a06a3 TT |
159 | struct type *elttype, *unresolved_elttype; |
160 | struct type *unresolved_type = type; | |
c906108c SS |
161 | unsigned eltlen; |
162 | LONGEST val; | |
163 | CORE_ADDR addr; | |
164 | ||
165 | CHECK_TYPEDEF (type); | |
166 | switch (TYPE_CODE (type)) | |
167 | { | |
168 | case TYPE_CODE_ARRAY: | |
6c7a06a3 TT |
169 | unresolved_elttype = TYPE_TARGET_TYPE (type); |
170 | elttype = check_typedef (unresolved_elttype); | |
171 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0) | |
c906108c SS |
172 | { |
173 | eltlen = TYPE_LENGTH (elttype); | |
174 | len = TYPE_LENGTH (type) / eltlen; | |
79a45b7d | 175 | if (options->prettyprint_arrays) |
c906108c SS |
176 | { |
177 | print_spaces_filtered (2 + 2 * recurse, stream); | |
178 | } | |
ea37ba09 DJ |
179 | |
180 | /* Print arrays of textual chars with a string syntax. */ | |
96c07c5b | 181 | if (c_textual_element_type (unresolved_elttype, options->format)) |
c906108c SS |
182 | { |
183 | /* If requested, look for the first null char and only print | |
c5aa993b | 184 | elements up to it. */ |
79a45b7d | 185 | if (options->stop_print_at_null) |
c906108c | 186 | { |
745b8ca0 | 187 | unsigned int temp_len; |
c5aa993b | 188 | |
c906108c | 189 | for (temp_len = 0; |
6c7a06a3 TT |
190 | (temp_len < len |
191 | && temp_len < options->print_max | |
192 | && extract_unsigned_integer (valaddr + embedded_offset | |
193 | + temp_len * eltlen, | |
421d5d99 | 194 | eltlen, byte_order) != 0); |
6c7a06a3 TT |
195 | ++temp_len) |
196 | ; | |
c906108c SS |
197 | len = temp_len; |
198 | } | |
c5aa993b | 199 | |
6c7a06a3 | 200 | LA_PRINT_STRING (stream, unresolved_elttype, |
be759fcf PM |
201 | valaddr + embedded_offset, len, |
202 | NULL, 0, options); | |
c906108c SS |
203 | i = len; |
204 | } | |
205 | else | |
206 | { | |
207 | fprintf_filtered (stream, "{"); | |
208 | /* If this is a virtual function table, print the 0th | |
c5aa993b | 209 | entry specially, and the rest of the members normally. */ |
c906108c SS |
210 | if (cp_is_vtbl_ptr_type (elttype)) |
211 | { | |
212 | i = 1; | |
3d263c1d | 213 | fprintf_filtered (stream, _("%d vtable entries"), len - 1); |
c906108c SS |
214 | } |
215 | else | |
216 | { | |
217 | i = 0; | |
218 | } | |
219 | val_print_array_elements (type, valaddr + embedded_offset, address, stream, | |
79a45b7d | 220 | recurse, options, i); |
c906108c SS |
221 | fprintf_filtered (stream, "}"); |
222 | } | |
223 | break; | |
224 | } | |
225 | /* Array of unspecified length: treat like pointer to first elt. */ | |
226 | addr = address; | |
227 | goto print_unpacked_pointer; | |
228 | ||
0d5de010 | 229 | case TYPE_CODE_MEMBERPTR: |
79a45b7d | 230 | if (options->format) |
0d5de010 | 231 | { |
79a45b7d TT |
232 | print_scalar_formatted (valaddr + embedded_offset, type, |
233 | options, 0, stream); | |
0d5de010 DJ |
234 | break; |
235 | } | |
ad4820ab | 236 | cp_print_class_member (valaddr + embedded_offset, type, stream, "&"); |
0d5de010 DJ |
237 | break; |
238 | ||
239 | case TYPE_CODE_METHODPTR: | |
240 | cplus_print_method_ptr (valaddr + embedded_offset, type, stream); | |
241 | break; | |
242 | ||
c906108c | 243 | case TYPE_CODE_PTR: |
79a45b7d | 244 | if (options->format && options->format != 's') |
c906108c | 245 | { |
79a45b7d TT |
246 | print_scalar_formatted (valaddr + embedded_offset, type, |
247 | options, 0, stream); | |
c906108c SS |
248 | break; |
249 | } | |
79a45b7d | 250 | if (options->vtblprint && cp_is_vtbl_ptr_type (type)) |
c906108c | 251 | { |
c5aa993b | 252 | /* Print the unmangled name if desired. */ |
c906108c SS |
253 | /* Print vtable entry - we only get here if we ARE using |
254 | -fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */ | |
4478b372 JB |
255 | CORE_ADDR addr |
256 | = extract_typed_address (valaddr + embedded_offset, type); | |
50810684 UW |
257 | print_function_pointer_address (gdbarch, addr, stream, |
258 | options->addressprint); | |
c906108c SS |
259 | break; |
260 | } | |
6c7a06a3 TT |
261 | unresolved_elttype = TYPE_TARGET_TYPE (type); |
262 | elttype = check_typedef (unresolved_elttype); | |
c906108c SS |
263 | { |
264 | addr = unpack_pointer (type, valaddr + embedded_offset); | |
265 | print_unpacked_pointer: | |
c906108c SS |
266 | |
267 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
268 | { | |
269 | /* Try to print what function it points to. */ | |
50810684 | 270 | print_function_pointer_address (gdbarch, addr, stream, |
79a45b7d | 271 | options->addressprint); |
c906108c SS |
272 | /* Return value is irrelevant except for string pointers. */ |
273 | return (0); | |
274 | } | |
275 | ||
79a45b7d | 276 | if (options->addressprint) |
5af949e3 | 277 | fputs_filtered (paddress (gdbarch, addr), stream); |
c906108c | 278 | |
ea37ba09 | 279 | /* For a pointer to a textual type, also print the string |
c906108c | 280 | pointed to, unless pointer is null. */ |
c906108c | 281 | |
96c07c5b | 282 | if (c_textual_element_type (unresolved_elttype, options->format) |
79a45b7d | 283 | && addr != 0) |
c906108c | 284 | { |
6c7a06a3 | 285 | i = val_print_string (unresolved_elttype, addr, -1, stream, |
79a45b7d | 286 | options); |
c906108c | 287 | } |
c5aa993b JM |
288 | else if (cp_is_vtbl_member (type)) |
289 | { | |
c906108c SS |
290 | /* print vtbl's nicely */ |
291 | CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset); | |
292 | ||
293 | struct minimal_symbol *msymbol = | |
c5aa993b | 294 | lookup_minimal_symbol_by_pc (vt_address); |
5aafa1cc PM |
295 | if ((msymbol != NULL) |
296 | && (vt_address == SYMBOL_VALUE_ADDRESS (msymbol))) | |
c906108c SS |
297 | { |
298 | fputs_filtered (" <", stream); | |
de5ad195 | 299 | fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream); |
c906108c SS |
300 | fputs_filtered (">", stream); |
301 | } | |
79a45b7d | 302 | if (vt_address && options->vtblprint) |
c5aa993b | 303 | { |
6943961c | 304 | struct value *vt_val; |
c5aa993b JM |
305 | struct symbol *wsym = (struct symbol *) NULL; |
306 | struct type *wtype; | |
c5aa993b | 307 | struct block *block = (struct block *) NULL; |
c906108c SS |
308 | int is_this_fld; |
309 | ||
310 | if (msymbol != NULL) | |
3567439c | 311 | wsym = lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), block, |
2570f2b7 | 312 | VAR_DOMAIN, &is_this_fld); |
c5aa993b | 313 | |
c906108c SS |
314 | if (wsym) |
315 | { | |
c5aa993b | 316 | wtype = SYMBOL_TYPE (wsym); |
c906108c SS |
317 | } |
318 | else | |
319 | { | |
6c7a06a3 | 320 | wtype = unresolved_elttype; |
c906108c | 321 | } |
00a4c844 | 322 | vt_val = value_at (wtype, vt_address); |
79a45b7d | 323 | common_val_print (vt_val, stream, recurse + 1, options, |
d8ca156b | 324 | current_language); |
79a45b7d | 325 | if (options->pretty) |
c906108c SS |
326 | { |
327 | fprintf_filtered (stream, "\n"); | |
328 | print_spaces_filtered (2 + 2 * recurse, stream); | |
329 | } | |
c5aa993b JM |
330 | } |
331 | } | |
c906108c SS |
332 | |
333 | /* Return number of characters printed, including the terminating | |
334 | '\0' if we reached the end. val_print_string takes care including | |
335 | the terminating '\0' if necessary. */ | |
336 | return i; | |
337 | } | |
338 | break; | |
339 | ||
c906108c SS |
340 | case TYPE_CODE_REF: |
341 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
79a45b7d | 342 | if (options->addressprint) |
c5aa993b | 343 | { |
4478b372 JB |
344 | CORE_ADDR addr |
345 | = extract_typed_address (valaddr + embedded_offset, type); | |
c906108c | 346 | fprintf_filtered (stream, "@"); |
5af949e3 | 347 | fputs_filtered (paddress (gdbarch, addr), stream); |
79a45b7d | 348 | if (options->deref_ref) |
c906108c | 349 | fputs_filtered (": ", stream); |
c5aa993b | 350 | } |
c906108c | 351 | /* De-reference the reference. */ |
79a45b7d | 352 | if (options->deref_ref) |
c906108c SS |
353 | { |
354 | if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF) | |
355 | { | |
6943961c | 356 | struct value *deref_val = |
c5aa993b JM |
357 | value_at |
358 | (TYPE_TARGET_TYPE (type), | |
d8631d21 | 359 | unpack_pointer (type, valaddr + embedded_offset)); |
79a45b7d TT |
360 | common_val_print (deref_val, stream, recurse, options, |
361 | current_language); | |
c906108c SS |
362 | } |
363 | else | |
364 | fputs_filtered ("???", stream); | |
365 | } | |
366 | break; | |
367 | ||
368 | case TYPE_CODE_UNION: | |
79a45b7d | 369 | if (recurse && !options->unionprint) |
c906108c SS |
370 | { |
371 | fprintf_filtered (stream, "{...}"); | |
372 | break; | |
373 | } | |
374 | /* Fall through. */ | |
375 | case TYPE_CODE_STRUCT: | |
015a42b4 | 376 | /*FIXME: Abstract this away */ |
79a45b7d | 377 | if (options->vtblprint && cp_is_vtbl_ptr_type (type)) |
c906108c | 378 | { |
c5aa993b | 379 | /* Print the unmangled name if desired. */ |
c906108c SS |
380 | /* Print vtable entry - we only get here if NOT using |
381 | -fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */ | |
4478b372 JB |
382 | int offset = (embedded_offset + |
383 | TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8); | |
384 | struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET); | |
385 | CORE_ADDR addr | |
386 | = extract_typed_address (valaddr + offset, field_type); | |
387 | ||
50810684 UW |
388 | print_function_pointer_address (gdbarch, addr, stream, |
389 | options->addressprint); | |
c906108c SS |
390 | } |
391 | else | |
79a45b7d TT |
392 | cp_print_value_fields (type, type, valaddr, embedded_offset, address, stream, |
393 | recurse, options, NULL, 0); | |
c906108c SS |
394 | break; |
395 | ||
396 | case TYPE_CODE_ENUM: | |
79a45b7d | 397 | if (options->format) |
c906108c | 398 | { |
79a45b7d TT |
399 | print_scalar_formatted (valaddr + embedded_offset, type, |
400 | options, 0, stream); | |
c906108c SS |
401 | break; |
402 | } | |
403 | len = TYPE_NFIELDS (type); | |
404 | val = unpack_long (type, valaddr + embedded_offset); | |
405 | for (i = 0; i < len; i++) | |
406 | { | |
407 | QUIT; | |
408 | if (val == TYPE_FIELD_BITPOS (type, i)) | |
409 | { | |
410 | break; | |
411 | } | |
412 | } | |
413 | if (i < len) | |
414 | { | |
415 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
416 | } | |
417 | else | |
418 | { | |
419 | print_longest (stream, 'd', 0, val); | |
420 | } | |
421 | break; | |
422 | ||
4f2aea11 | 423 | case TYPE_CODE_FLAGS: |
79a45b7d TT |
424 | if (options->format) |
425 | print_scalar_formatted (valaddr + embedded_offset, type, | |
426 | options, 0, stream); | |
4f2aea11 MK |
427 | else |
428 | val_print_type_code_flags (type, valaddr + embedded_offset, stream); | |
429 | break; | |
430 | ||
c906108c | 431 | case TYPE_CODE_FUNC: |
0d5de010 | 432 | case TYPE_CODE_METHOD: |
79a45b7d | 433 | if (options->format) |
c906108c | 434 | { |
79a45b7d TT |
435 | print_scalar_formatted (valaddr + embedded_offset, type, |
436 | options, 0, stream); | |
c906108c SS |
437 | break; |
438 | } | |
439 | /* FIXME, we should consider, at least for ANSI C language, eliminating | |
c5aa993b | 440 | the distinction made between FUNCs and POINTERs to FUNCs. */ |
c906108c SS |
441 | fprintf_filtered (stream, "{"); |
442 | type_print (type, "", stream, -1); | |
443 | fprintf_filtered (stream, "} "); | |
444 | /* Try to print what function it points to, and its address. */ | |
5af949e3 | 445 | print_address_demangle (gdbarch, address, stream, demangle); |
c906108c SS |
446 | break; |
447 | ||
448 | case TYPE_CODE_BOOL: | |
79a45b7d TT |
449 | if (options->format || options->output_format) |
450 | { | |
451 | struct value_print_options opts = *options; | |
452 | opts.format = (options->format ? options->format | |
453 | : options->output_format); | |
454 | print_scalar_formatted (valaddr + embedded_offset, type, | |
455 | &opts, 0, stream); | |
456 | } | |
c906108c SS |
457 | else |
458 | { | |
459 | val = unpack_long (type, valaddr + embedded_offset); | |
460 | if (val == 0) | |
461 | fputs_filtered ("false", stream); | |
462 | else if (val == 1) | |
463 | fputs_filtered ("true", stream); | |
464 | else | |
465 | print_longest (stream, 'd', 0, val); | |
466 | } | |
467 | break; | |
468 | ||
469 | case TYPE_CODE_RANGE: | |
470 | /* FIXME: create_range_type does not set the unsigned bit in a | |
c5aa993b JM |
471 | range type (I think it probably should copy it from the target |
472 | type), so we won't print values which are too large to | |
473 | fit in a signed integer correctly. */ | |
c906108c | 474 | /* FIXME: Doesn't handle ranges of enums correctly. (Can't just |
c5aa993b JM |
475 | print with the target type, though, because the size of our type |
476 | and the target type might differ). */ | |
c906108c SS |
477 | /* FALLTHROUGH */ |
478 | ||
479 | case TYPE_CODE_INT: | |
79a45b7d | 480 | if (options->format || options->output_format) |
c906108c | 481 | { |
79a45b7d TT |
482 | struct value_print_options opts = *options; |
483 | opts.format = (options->format ? options->format | |
484 | : options->output_format); | |
485 | print_scalar_formatted (valaddr + embedded_offset, type, | |
486 | &opts, 0, stream); | |
c906108c SS |
487 | } |
488 | else | |
489 | { | |
490 | val_print_type_code_int (type, valaddr + embedded_offset, stream); | |
491 | /* C and C++ has no single byte int type, char is used instead. | |
492 | Since we don't know whether the value is really intended to | |
493 | be used as an integer or a character, print the character | |
ea37ba09 | 494 | equivalent as well. */ |
96c07c5b | 495 | if (c_textual_element_type (unresolved_type, options->format)) |
c906108c SS |
496 | { |
497 | fputs_filtered (" ", stream); | |
498 | LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset), | |
6c7a06a3 | 499 | unresolved_type, stream); |
c906108c SS |
500 | } |
501 | } | |
502 | break; | |
503 | ||
504 | case TYPE_CODE_CHAR: | |
79a45b7d | 505 | if (options->format || options->output_format) |
c906108c | 506 | { |
79a45b7d TT |
507 | struct value_print_options opts = *options; |
508 | opts.format = (options->format ? options->format | |
509 | : options->output_format); | |
510 | print_scalar_formatted (valaddr + embedded_offset, type, | |
511 | &opts, 0, stream); | |
c906108c SS |
512 | } |
513 | else | |
514 | { | |
96baa820 JM |
515 | val = unpack_long (type, valaddr + embedded_offset); |
516 | if (TYPE_UNSIGNED (type)) | |
517 | fprintf_filtered (stream, "%u", (unsigned int) val); | |
518 | else | |
519 | fprintf_filtered (stream, "%d", (int) val); | |
c906108c | 520 | fputs_filtered (" ", stream); |
6c7a06a3 | 521 | LA_PRINT_CHAR ((unsigned char) val, unresolved_type, stream); |
c906108c SS |
522 | } |
523 | break; | |
524 | ||
525 | case TYPE_CODE_FLT: | |
79a45b7d | 526 | if (options->format) |
c906108c | 527 | { |
79a45b7d TT |
528 | print_scalar_formatted (valaddr + embedded_offset, type, |
529 | options, 0, stream); | |
c906108c SS |
530 | } |
531 | else | |
532 | { | |
533 | print_floating (valaddr + embedded_offset, type, stream); | |
534 | } | |
535 | break; | |
536 | ||
7678ef8f | 537 | case TYPE_CODE_DECFLOAT: |
79a45b7d TT |
538 | if (options->format) |
539 | print_scalar_formatted (valaddr + embedded_offset, type, | |
540 | options, 0, stream); | |
7678ef8f TJB |
541 | else |
542 | print_decimal_floating (valaddr + embedded_offset, type, stream); | |
543 | break; | |
544 | ||
c906108c SS |
545 | case TYPE_CODE_VOID: |
546 | fprintf_filtered (stream, "void"); | |
547 | break; | |
548 | ||
549 | case TYPE_CODE_ERROR: | |
3d263c1d | 550 | fprintf_filtered (stream, _("<error type>")); |
c906108c SS |
551 | break; |
552 | ||
553 | case TYPE_CODE_UNDEF: | |
554 | /* This happens (without TYPE_FLAG_STUB set) on systems which don't use | |
c5aa993b JM |
555 | dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar" |
556 | and no complete type for struct foo in that file. */ | |
3d263c1d | 557 | fprintf_filtered (stream, _("<incomplete type>")); |
c906108c SS |
558 | break; |
559 | ||
fca9e603 | 560 | case TYPE_CODE_COMPLEX: |
79a45b7d | 561 | if (options->format) |
fca9e603 DJ |
562 | print_scalar_formatted (valaddr + embedded_offset, |
563 | TYPE_TARGET_TYPE (type), | |
79a45b7d | 564 | options, 0, stream); |
fca9e603 DJ |
565 | else |
566 | print_floating (valaddr + embedded_offset, TYPE_TARGET_TYPE (type), | |
567 | stream); | |
568 | fprintf_filtered (stream, " + "); | |
79a45b7d | 569 | if (options->format) |
fca9e603 DJ |
570 | print_scalar_formatted (valaddr + embedded_offset |
571 | + TYPE_LENGTH (TYPE_TARGET_TYPE (type)), | |
572 | TYPE_TARGET_TYPE (type), | |
79a45b7d | 573 | options, 0, stream); |
fca9e603 DJ |
574 | else |
575 | print_floating (valaddr + embedded_offset | |
576 | + TYPE_LENGTH (TYPE_TARGET_TYPE (type)), | |
577 | TYPE_TARGET_TYPE (type), | |
578 | stream); | |
579 | fprintf_filtered (stream, " * I"); | |
580 | break; | |
581 | ||
c906108c | 582 | default: |
3d263c1d | 583 | error (_("Invalid C/C++ type code %d in symbol table."), TYPE_CODE (type)); |
c906108c SS |
584 | } |
585 | gdb_flush (stream); | |
586 | return (0); | |
587 | } | |
588 | \f | |
589 | int | |
79a45b7d TT |
590 | c_value_print (struct value *val, struct ui_file *stream, |
591 | const struct value_print_options *options) | |
c906108c | 592 | { |
6c7a06a3 | 593 | struct type *type, *real_type, *val_type; |
c906108c | 594 | int full, top, using_enc; |
79a45b7d TT |
595 | struct value_print_options opts = *options; |
596 | ||
597 | opts.deref_ref = 1; | |
c5aa993b | 598 | |
c906108c SS |
599 | /* If it is a pointer, indicate what it points to. |
600 | ||
601 | Print type also if it is a reference. | |
602 | ||
603 | C++: if it is a member pointer, we will take care | |
604 | of that when we print it. */ | |
88750304 | 605 | |
6c7a06a3 TT |
606 | /* Preserve the original type before stripping typedefs. We prefer |
607 | to pass down the original type when possible, but for local | |
608 | checks it is better to look past the typedefs. */ | |
609 | val_type = value_type (val); | |
610 | type = check_typedef (val_type); | |
88750304 DJ |
611 | |
612 | if (TYPE_CODE (type) == TYPE_CODE_PTR | |
613 | || TYPE_CODE (type) == TYPE_CODE_REF) | |
c906108c SS |
614 | { |
615 | /* Hack: remove (char *) for char strings. Their | |
ea37ba09 | 616 | type is indicated by the quoted string anyway. |
96c07c5b | 617 | (Don't use c_textual_element_type here; quoted strings |
6c7a06a3 TT |
618 | are always exactly (char *), (wchar_t *), or the like. */ |
619 | if (TYPE_CODE (val_type) == TYPE_CODE_PTR | |
620 | && TYPE_NAME (val_type) == NULL | |
621 | && TYPE_NAME (TYPE_TARGET_TYPE (val_type)) != NULL | |
622 | && (strcmp (TYPE_NAME (TYPE_TARGET_TYPE (val_type)), "char") == 0 | |
623 | || textual_name (TYPE_NAME (TYPE_TARGET_TYPE (val_type))))) | |
c906108c SS |
624 | { |
625 | /* Print nothing */ | |
626 | } | |
79a45b7d TT |
627 | else if (options->objectprint |
628 | && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS)) | |
c5aa993b | 629 | { |
070ad9f0 DB |
630 | |
631 | if (TYPE_CODE(type) == TYPE_CODE_REF) | |
632 | { | |
633 | /* Copy value, change to pointer, so we don't get an | |
634 | * error about a non-pointer type in value_rtti_target_type | |
635 | */ | |
6943961c | 636 | struct value *temparg; |
070ad9f0 | 637 | temparg=value_copy(val); |
04624583 | 638 | deprecated_set_value_type (temparg, lookup_pointer_type (TYPE_TARGET_TYPE(type))); |
070ad9f0 DB |
639 | val=temparg; |
640 | } | |
c5aa993b | 641 | /* Pointer to class, check real type of object */ |
c906108c | 642 | fprintf_filtered (stream, "("); |
c4093a6a JM |
643 | real_type = value_rtti_target_type (val, &full, &top, &using_enc); |
644 | if (real_type) | |
c5aa993b JM |
645 | { |
646 | /* RTTI entry found */ | |
c4093a6a JM |
647 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
648 | { | |
649 | /* create a pointer type pointing to the real type */ | |
650 | type = lookup_pointer_type (real_type); | |
651 | } | |
652 | else | |
653 | { | |
654 | /* create a reference type referencing the real type */ | |
655 | type = lookup_reference_type (real_type); | |
656 | } | |
070ad9f0 | 657 | /* JYG: Need to adjust pointer value. */ |
5086187c AC |
658 | /* NOTE: cagney/2005-01-02: THIS IS BOGUS. */ |
659 | value_contents_writeable (val)[0] -= top; | |
070ad9f0 | 660 | |
c4093a6a JM |
661 | /* Note: When we look up RTTI entries, we don't get any |
662 | information on const or volatile attributes */ | |
663 | } | |
664 | type_print (type, "", stream, -1); | |
c906108c | 665 | fprintf_filtered (stream, ") "); |
6c7a06a3 | 666 | val_type = type; |
c5aa993b | 667 | } |
c906108c SS |
668 | else |
669 | { | |
c5aa993b | 670 | /* normal case */ |
c906108c | 671 | fprintf_filtered (stream, "("); |
88750304 | 672 | type_print (value_type (val), "", stream, -1); |
c906108c SS |
673 | fprintf_filtered (stream, ") "); |
674 | } | |
675 | } | |
88750304 | 676 | |
42be36b3 CT |
677 | if (!value_initialized (val)) |
678 | fprintf_filtered (stream, " [uninitialized] "); | |
679 | ||
79a45b7d | 680 | if (options->objectprint && (TYPE_CODE (type) == TYPE_CODE_CLASS)) |
c906108c SS |
681 | { |
682 | /* Attempt to determine real type of object */ | |
683 | real_type = value_rtti_type (val, &full, &top, &using_enc); | |
c5aa993b JM |
684 | if (real_type) |
685 | { | |
686 | /* We have RTTI information, so use it */ | |
687 | val = value_full_object (val, real_type, full, top, using_enc); | |
688 | fprintf_filtered (stream, "(%s%s) ", | |
689 | TYPE_NAME (real_type), | |
3d263c1d | 690 | full ? "" : _(" [incomplete object]")); |
c5aa993b | 691 | /* Print out object: enclosing type is same as real_type if full */ |
46615f07 AC |
692 | return val_print (value_enclosing_type (val), |
693 | value_contents_all (val), 0, | |
42ae5230 | 694 | value_address (val), stream, 0, |
79a45b7d | 695 | &opts, current_language); |
c4093a6a JM |
696 | /* Note: When we look up RTTI entries, we don't get any information on |
697 | const or volatile attributes */ | |
c5aa993b | 698 | } |
88750304 | 699 | else if (type != check_typedef (value_enclosing_type (val))) |
c5aa993b JM |
700 | { |
701 | /* No RTTI information, so let's do our best */ | |
702 | fprintf_filtered (stream, "(%s ?) ", | |
4754a64e | 703 | TYPE_NAME (value_enclosing_type (val))); |
46615f07 AC |
704 | return val_print (value_enclosing_type (val), |
705 | value_contents_all (val), 0, | |
42ae5230 | 706 | value_address (val), stream, 0, |
79a45b7d | 707 | &opts, current_language); |
c5aa993b | 708 | } |
c906108c SS |
709 | /* Otherwise, we end up at the return outside this "if" */ |
710 | } | |
c5aa993b | 711 | |
6c7a06a3 | 712 | return val_print (val_type, value_contents_all (val), |
13c3b5f5 | 713 | value_embedded_offset (val), |
42ae5230 | 714 | value_address (val), |
79a45b7d | 715 | stream, 0, &opts, current_language); |
c906108c | 716 | } |