Commit | Line | Data |
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8b93c638 | 1 | /* Implementation of the GDB variable objects API. |
bc8332bb | 2 | |
c5a57081 | 3 | Copyright (C) 1999-2012 Free Software Foundation, Inc. |
8b93c638 JM |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 7 | the Free Software Foundation; either version 3 of the License, or |
8b93c638 JM |
8 | (at your option) any later version. |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
8b93c638 JM |
17 | |
18 | #include "defs.h" | |
a6c442d8 | 19 | #include "exceptions.h" |
8b93c638 JM |
20 | #include "value.h" |
21 | #include "expression.h" | |
22 | #include "frame.h" | |
8b93c638 JM |
23 | #include "language.h" |
24 | #include "wrapper.h" | |
25 | #include "gdbcmd.h" | |
d2353924 | 26 | #include "block.h" |
79a45b7d | 27 | #include "valprint.h" |
a6c442d8 MK |
28 | |
29 | #include "gdb_assert.h" | |
b66d6d2e | 30 | #include "gdb_string.h" |
0cc7d26f | 31 | #include "gdb_regex.h" |
8b93c638 JM |
32 | |
33 | #include "varobj.h" | |
28335dcc | 34 | #include "vec.h" |
6208b47d VP |
35 | #include "gdbthread.h" |
36 | #include "inferior.h" | |
8b93c638 | 37 | |
b6313243 TT |
38 | #if HAVE_PYTHON |
39 | #include "python/python.h" | |
40 | #include "python/python-internal.h" | |
50389644 PA |
41 | #else |
42 | typedef int PyObject; | |
b6313243 TT |
43 | #endif |
44 | ||
8b93c638 JM |
45 | /* Non-zero if we want to see trace of varobj level stuff. */ |
46 | ||
47 | int varobjdebug = 0; | |
920d2a44 AC |
48 | static void |
49 | show_varobjdebug (struct ui_file *file, int from_tty, | |
50 | struct cmd_list_element *c, const char *value) | |
51 | { | |
52 | fprintf_filtered (file, _("Varobj debugging is %s.\n"), value); | |
53 | } | |
8b93c638 | 54 | |
581e13c1 | 55 | /* String representations of gdb's format codes. */ |
8b93c638 | 56 | char *varobj_format_string[] = |
72330bd6 | 57 | { "natural", "binary", "decimal", "hexadecimal", "octal" }; |
8b93c638 | 58 | |
581e13c1 | 59 | /* String representations of gdb's known languages. */ |
72330bd6 | 60 | char *varobj_language_string[] = { "unknown", "C", "C++", "Java" }; |
8b93c638 | 61 | |
0cc7d26f TT |
62 | /* True if we want to allow Python-based pretty-printing. */ |
63 | static int pretty_printing = 0; | |
64 | ||
65 | void | |
66 | varobj_enable_pretty_printing (void) | |
67 | { | |
68 | pretty_printing = 1; | |
69 | } | |
70 | ||
8b93c638 JM |
71 | /* Data structures */ |
72 | ||
73 | /* Every root variable has one of these structures saved in its | |
581e13c1 | 74 | varobj. Members which must be free'd are noted. */ |
8b93c638 | 75 | struct varobj_root |
72330bd6 | 76 | { |
8b93c638 | 77 | |
581e13c1 | 78 | /* Alloc'd expression for this parent. */ |
72330bd6 | 79 | struct expression *exp; |
8b93c638 | 80 | |
581e13c1 | 81 | /* Block for which this expression is valid. */ |
72330bd6 | 82 | struct block *valid_block; |
8b93c638 | 83 | |
44a67aa7 VP |
84 | /* The frame for this expression. This field is set iff valid_block is |
85 | not NULL. */ | |
e64d9b3d | 86 | struct frame_id frame; |
8b93c638 | 87 | |
c5b48eac | 88 | /* The thread ID that this varobj_root belong to. This field |
581e13c1 | 89 | is only valid if valid_block is not NULL. |
c5b48eac VP |
90 | When not 0, indicates which thread 'frame' belongs to. |
91 | When 0, indicates that the thread list was empty when the varobj_root | |
92 | was created. */ | |
93 | int thread_id; | |
94 | ||
a5defcdc VP |
95 | /* If 1, the -var-update always recomputes the value in the |
96 | current thread and frame. Otherwise, variable object is | |
581e13c1 | 97 | always updated in the specific scope/thread/frame. */ |
a5defcdc | 98 | int floating; |
73a93a32 | 99 | |
8756216b DP |
100 | /* Flag that indicates validity: set to 0 when this varobj_root refers |
101 | to symbols that do not exist anymore. */ | |
102 | int is_valid; | |
103 | ||
581e13c1 | 104 | /* Language info for this variable and its children. */ |
72330bd6 | 105 | struct language_specific *lang; |
8b93c638 | 106 | |
581e13c1 | 107 | /* The varobj for this root node. */ |
72330bd6 | 108 | struct varobj *rootvar; |
8b93c638 | 109 | |
72330bd6 AC |
110 | /* Next root variable */ |
111 | struct varobj_root *next; | |
112 | }; | |
8b93c638 JM |
113 | |
114 | /* Every variable in the system has a structure of this type defined | |
581e13c1 MS |
115 | for it. This structure holds all information necessary to manipulate |
116 | a particular object variable. Members which must be freed are noted. */ | |
8b93c638 | 117 | struct varobj |
72330bd6 | 118 | { |
8b93c638 | 119 | |
581e13c1 | 120 | /* Alloc'd name of the variable for this object. If this variable is a |
72330bd6 | 121 | child, then this name will be the child's source name. |
581e13c1 MS |
122 | (bar, not foo.bar). */ |
123 | /* NOTE: This is the "expression". */ | |
72330bd6 | 124 | char *name; |
8b93c638 | 125 | |
02142340 VP |
126 | /* Alloc'd expression for this child. Can be used to create a |
127 | root variable corresponding to this child. */ | |
128 | char *path_expr; | |
129 | ||
581e13c1 MS |
130 | /* The alloc'd name for this variable's object. This is here for |
131 | convenience when constructing this object's children. */ | |
72330bd6 | 132 | char *obj_name; |
8b93c638 | 133 | |
581e13c1 | 134 | /* Index of this variable in its parent or -1. */ |
72330bd6 | 135 | int index; |
8b93c638 | 136 | |
202ddcaa VP |
137 | /* The type of this variable. This can be NULL |
138 | for artifial variable objects -- currently, the "accessibility" | |
139 | variable objects in C++. */ | |
72330bd6 | 140 | struct type *type; |
8b93c638 | 141 | |
b20d8971 VP |
142 | /* The value of this expression or subexpression. A NULL value |
143 | indicates there was an error getting this value. | |
b2c2bd75 VP |
144 | Invariant: if varobj_value_is_changeable_p (this) is non-zero, |
145 | the value is either NULL, or not lazy. */ | |
30b28db1 | 146 | struct value *value; |
8b93c638 | 147 | |
581e13c1 | 148 | /* The number of (immediate) children this variable has. */ |
72330bd6 | 149 | int num_children; |
8b93c638 | 150 | |
581e13c1 | 151 | /* If this object is a child, this points to its immediate parent. */ |
72330bd6 | 152 | struct varobj *parent; |
8b93c638 | 153 | |
28335dcc VP |
154 | /* Children of this object. */ |
155 | VEC (varobj_p) *children; | |
8b93c638 | 156 | |
b6313243 TT |
157 | /* Whether the children of this varobj were requested. This field is |
158 | used to decide if dynamic varobj should recompute their children. | |
159 | In the event that the frontend never asked for the children, we | |
160 | can avoid that. */ | |
161 | int children_requested; | |
162 | ||
581e13c1 MS |
163 | /* Description of the root variable. Points to root variable for |
164 | children. */ | |
72330bd6 | 165 | struct varobj_root *root; |
8b93c638 | 166 | |
581e13c1 | 167 | /* The format of the output for this object. */ |
72330bd6 | 168 | enum varobj_display_formats format; |
fb9b6b35 | 169 | |
581e13c1 | 170 | /* Was this variable updated via a varobj_set_value operation. */ |
fb9b6b35 | 171 | int updated; |
85265413 NR |
172 | |
173 | /* Last print value. */ | |
174 | char *print_value; | |
25d5ea92 VP |
175 | |
176 | /* Is this variable frozen. Frozen variables are never implicitly | |
177 | updated by -var-update * | |
178 | or -var-update <direct-or-indirect-parent>. */ | |
179 | int frozen; | |
180 | ||
181 | /* Is the value of this variable intentionally not fetched? It is | |
182 | not fetched if either the variable is frozen, or any parents is | |
183 | frozen. */ | |
184 | int not_fetched; | |
b6313243 | 185 | |
0cc7d26f TT |
186 | /* Sub-range of children which the MI consumer has requested. If |
187 | FROM < 0 or TO < 0, means that all children have been | |
188 | requested. */ | |
189 | int from; | |
190 | int to; | |
191 | ||
192 | /* The pretty-printer constructor. If NULL, then the default | |
193 | pretty-printer will be looked up. If None, then no | |
194 | pretty-printer will be installed. */ | |
195 | PyObject *constructor; | |
196 | ||
b6313243 TT |
197 | /* The pretty-printer that has been constructed. If NULL, then a |
198 | new printer object is needed, and one will be constructed. */ | |
199 | PyObject *pretty_printer; | |
0cc7d26f TT |
200 | |
201 | /* The iterator returned by the printer's 'children' method, or NULL | |
202 | if not available. */ | |
203 | PyObject *child_iter; | |
204 | ||
205 | /* We request one extra item from the iterator, so that we can | |
206 | report to the caller whether there are more items than we have | |
207 | already reported. However, we don't want to install this value | |
208 | when we read it, because that will mess up future updates. So, | |
209 | we stash it here instead. */ | |
210 | PyObject *saved_item; | |
72330bd6 | 211 | }; |
8b93c638 | 212 | |
8b93c638 | 213 | struct cpstack |
72330bd6 AC |
214 | { |
215 | char *name; | |
216 | struct cpstack *next; | |
217 | }; | |
8b93c638 JM |
218 | |
219 | /* A list of varobjs */ | |
220 | ||
221 | struct vlist | |
72330bd6 AC |
222 | { |
223 | struct varobj *var; | |
224 | struct vlist *next; | |
225 | }; | |
8b93c638 JM |
226 | |
227 | /* Private function prototypes */ | |
228 | ||
581e13c1 | 229 | /* Helper functions for the above subcommands. */ |
8b93c638 | 230 | |
a14ed312 | 231 | static int delete_variable (struct cpstack **, struct varobj *, int); |
8b93c638 | 232 | |
a14ed312 KB |
233 | static void delete_variable_1 (struct cpstack **, int *, |
234 | struct varobj *, int, int); | |
8b93c638 | 235 | |
a14ed312 | 236 | static int install_variable (struct varobj *); |
8b93c638 | 237 | |
a14ed312 | 238 | static void uninstall_variable (struct varobj *); |
8b93c638 | 239 | |
a14ed312 | 240 | static struct varobj *create_child (struct varobj *, int, char *); |
8b93c638 | 241 | |
b6313243 TT |
242 | static struct varobj * |
243 | create_child_with_value (struct varobj *parent, int index, const char *name, | |
244 | struct value *value); | |
245 | ||
8b93c638 JM |
246 | /* Utility routines */ |
247 | ||
a14ed312 | 248 | static struct varobj *new_variable (void); |
8b93c638 | 249 | |
a14ed312 | 250 | static struct varobj *new_root_variable (void); |
8b93c638 | 251 | |
a14ed312 | 252 | static void free_variable (struct varobj *var); |
8b93c638 | 253 | |
74b7792f AC |
254 | static struct cleanup *make_cleanup_free_variable (struct varobj *var); |
255 | ||
a14ed312 | 256 | static struct type *get_type (struct varobj *var); |
8b93c638 | 257 | |
6e2a9270 VP |
258 | static struct type *get_value_type (struct varobj *var); |
259 | ||
a14ed312 | 260 | static struct type *get_target_type (struct type *); |
8b93c638 | 261 | |
a14ed312 | 262 | static enum varobj_display_formats variable_default_display (struct varobj *); |
8b93c638 | 263 | |
a14ed312 | 264 | static void cppush (struct cpstack **pstack, char *name); |
8b93c638 | 265 | |
a14ed312 | 266 | static char *cppop (struct cpstack **pstack); |
8b93c638 | 267 | |
acd65feb VP |
268 | static int install_new_value (struct varobj *var, struct value *value, |
269 | int initial); | |
270 | ||
581e13c1 | 271 | /* Language-specific routines. */ |
8b93c638 | 272 | |
a14ed312 | 273 | static enum varobj_languages variable_language (struct varobj *var); |
8b93c638 | 274 | |
a14ed312 | 275 | static int number_of_children (struct varobj *); |
8b93c638 | 276 | |
a14ed312 | 277 | static char *name_of_variable (struct varobj *); |
8b93c638 | 278 | |
a14ed312 | 279 | static char *name_of_child (struct varobj *, int); |
8b93c638 | 280 | |
30b28db1 | 281 | static struct value *value_of_root (struct varobj **var_handle, int *); |
8b93c638 | 282 | |
30b28db1 | 283 | static struct value *value_of_child (struct varobj *parent, int index); |
8b93c638 | 284 | |
de051565 MK |
285 | static char *my_value_of_variable (struct varobj *var, |
286 | enum varobj_display_formats format); | |
8b93c638 | 287 | |
85265413 | 288 | static char *value_get_print_value (struct value *value, |
b6313243 | 289 | enum varobj_display_formats format, |
d452c4bc | 290 | struct varobj *var); |
85265413 | 291 | |
b2c2bd75 VP |
292 | static int varobj_value_is_changeable_p (struct varobj *var); |
293 | ||
294 | static int is_root_p (struct varobj *var); | |
8b93c638 | 295 | |
d8b65138 JK |
296 | #if HAVE_PYTHON |
297 | ||
9a1edae6 PM |
298 | static struct varobj *varobj_add_child (struct varobj *var, |
299 | const char *name, | |
300 | struct value *value); | |
b6313243 | 301 | |
d8b65138 JK |
302 | #endif /* HAVE_PYTHON */ |
303 | ||
8b93c638 JM |
304 | /* C implementation */ |
305 | ||
a14ed312 | 306 | static int c_number_of_children (struct varobj *var); |
8b93c638 | 307 | |
a14ed312 | 308 | static char *c_name_of_variable (struct varobj *parent); |
8b93c638 | 309 | |
a14ed312 | 310 | static char *c_name_of_child (struct varobj *parent, int index); |
8b93c638 | 311 | |
02142340 VP |
312 | static char *c_path_expr_of_child (struct varobj *child); |
313 | ||
30b28db1 | 314 | static struct value *c_value_of_root (struct varobj **var_handle); |
8b93c638 | 315 | |
30b28db1 | 316 | static struct value *c_value_of_child (struct varobj *parent, int index); |
8b93c638 | 317 | |
a14ed312 | 318 | static struct type *c_type_of_child (struct varobj *parent, int index); |
8b93c638 | 319 | |
de051565 MK |
320 | static char *c_value_of_variable (struct varobj *var, |
321 | enum varobj_display_formats format); | |
8b93c638 JM |
322 | |
323 | /* C++ implementation */ | |
324 | ||
a14ed312 | 325 | static int cplus_number_of_children (struct varobj *var); |
8b93c638 | 326 | |
a14ed312 | 327 | static void cplus_class_num_children (struct type *type, int children[3]); |
8b93c638 | 328 | |
a14ed312 | 329 | static char *cplus_name_of_variable (struct varobj *parent); |
8b93c638 | 330 | |
a14ed312 | 331 | static char *cplus_name_of_child (struct varobj *parent, int index); |
8b93c638 | 332 | |
02142340 VP |
333 | static char *cplus_path_expr_of_child (struct varobj *child); |
334 | ||
30b28db1 | 335 | static struct value *cplus_value_of_root (struct varobj **var_handle); |
8b93c638 | 336 | |
30b28db1 | 337 | static struct value *cplus_value_of_child (struct varobj *parent, int index); |
8b93c638 | 338 | |
a14ed312 | 339 | static struct type *cplus_type_of_child (struct varobj *parent, int index); |
8b93c638 | 340 | |
de051565 MK |
341 | static char *cplus_value_of_variable (struct varobj *var, |
342 | enum varobj_display_formats format); | |
8b93c638 JM |
343 | |
344 | /* Java implementation */ | |
345 | ||
a14ed312 | 346 | static int java_number_of_children (struct varobj *var); |
8b93c638 | 347 | |
a14ed312 | 348 | static char *java_name_of_variable (struct varobj *parent); |
8b93c638 | 349 | |
a14ed312 | 350 | static char *java_name_of_child (struct varobj *parent, int index); |
8b93c638 | 351 | |
02142340 VP |
352 | static char *java_path_expr_of_child (struct varobj *child); |
353 | ||
30b28db1 | 354 | static struct value *java_value_of_root (struct varobj **var_handle); |
8b93c638 | 355 | |
30b28db1 | 356 | static struct value *java_value_of_child (struct varobj *parent, int index); |
8b93c638 | 357 | |
a14ed312 | 358 | static struct type *java_type_of_child (struct varobj *parent, int index); |
8b93c638 | 359 | |
de051565 MK |
360 | static char *java_value_of_variable (struct varobj *var, |
361 | enum varobj_display_formats format); | |
8b93c638 | 362 | |
40591b7d JCD |
363 | /* Ada implementation */ |
364 | ||
365 | static int ada_number_of_children (struct varobj *var); | |
366 | ||
367 | static char *ada_name_of_variable (struct varobj *parent); | |
368 | ||
369 | static char *ada_name_of_child (struct varobj *parent, int index); | |
370 | ||
371 | static char *ada_path_expr_of_child (struct varobj *child); | |
372 | ||
373 | static struct value *ada_value_of_root (struct varobj **var_handle); | |
374 | ||
375 | static struct value *ada_value_of_child (struct varobj *parent, int index); | |
376 | ||
377 | static struct type *ada_type_of_child (struct varobj *parent, int index); | |
378 | ||
379 | static char *ada_value_of_variable (struct varobj *var, | |
380 | enum varobj_display_formats format); | |
381 | ||
8b93c638 JM |
382 | /* The language specific vector */ |
383 | ||
384 | struct language_specific | |
72330bd6 | 385 | { |
8b93c638 | 386 | |
581e13c1 | 387 | /* The language of this variable. */ |
72330bd6 | 388 | enum varobj_languages language; |
8b93c638 | 389 | |
581e13c1 | 390 | /* The number of children of PARENT. */ |
72330bd6 | 391 | int (*number_of_children) (struct varobj * parent); |
8b93c638 | 392 | |
581e13c1 | 393 | /* The name (expression) of a root varobj. */ |
72330bd6 | 394 | char *(*name_of_variable) (struct varobj * parent); |
8b93c638 | 395 | |
581e13c1 | 396 | /* The name of the INDEX'th child of PARENT. */ |
72330bd6 | 397 | char *(*name_of_child) (struct varobj * parent, int index); |
8b93c638 | 398 | |
02142340 VP |
399 | /* Returns the rooted expression of CHILD, which is a variable |
400 | obtain that has some parent. */ | |
401 | char *(*path_expr_of_child) (struct varobj * child); | |
402 | ||
581e13c1 | 403 | /* The ``struct value *'' of the root variable ROOT. */ |
30b28db1 | 404 | struct value *(*value_of_root) (struct varobj ** root_handle); |
8b93c638 | 405 | |
581e13c1 | 406 | /* The ``struct value *'' of the INDEX'th child of PARENT. */ |
30b28db1 | 407 | struct value *(*value_of_child) (struct varobj * parent, int index); |
8b93c638 | 408 | |
581e13c1 | 409 | /* The type of the INDEX'th child of PARENT. */ |
72330bd6 | 410 | struct type *(*type_of_child) (struct varobj * parent, int index); |
8b93c638 | 411 | |
581e13c1 | 412 | /* The current value of VAR. */ |
de051565 MK |
413 | char *(*value_of_variable) (struct varobj * var, |
414 | enum varobj_display_formats format); | |
72330bd6 | 415 | }; |
8b93c638 | 416 | |
581e13c1 | 417 | /* Array of known source language routines. */ |
d5d6fca5 | 418 | static struct language_specific languages[vlang_end] = { |
581e13c1 | 419 | /* Unknown (try treating as C). */ |
8b93c638 | 420 | { |
72330bd6 AC |
421 | vlang_unknown, |
422 | c_number_of_children, | |
423 | c_name_of_variable, | |
424 | c_name_of_child, | |
02142340 | 425 | c_path_expr_of_child, |
72330bd6 AC |
426 | c_value_of_root, |
427 | c_value_of_child, | |
428 | c_type_of_child, | |
72330bd6 | 429 | c_value_of_variable} |
8b93c638 JM |
430 | , |
431 | /* C */ | |
432 | { | |
72330bd6 AC |
433 | vlang_c, |
434 | c_number_of_children, | |
435 | c_name_of_variable, | |
436 | c_name_of_child, | |
02142340 | 437 | c_path_expr_of_child, |
72330bd6 AC |
438 | c_value_of_root, |
439 | c_value_of_child, | |
440 | c_type_of_child, | |
72330bd6 | 441 | c_value_of_variable} |
8b93c638 JM |
442 | , |
443 | /* C++ */ | |
444 | { | |
72330bd6 AC |
445 | vlang_cplus, |
446 | cplus_number_of_children, | |
447 | cplus_name_of_variable, | |
448 | cplus_name_of_child, | |
02142340 | 449 | cplus_path_expr_of_child, |
72330bd6 AC |
450 | cplus_value_of_root, |
451 | cplus_value_of_child, | |
452 | cplus_type_of_child, | |
72330bd6 | 453 | cplus_value_of_variable} |
8b93c638 JM |
454 | , |
455 | /* Java */ | |
456 | { | |
72330bd6 AC |
457 | vlang_java, |
458 | java_number_of_children, | |
459 | java_name_of_variable, | |
460 | java_name_of_child, | |
02142340 | 461 | java_path_expr_of_child, |
72330bd6 AC |
462 | java_value_of_root, |
463 | java_value_of_child, | |
464 | java_type_of_child, | |
40591b7d JCD |
465 | java_value_of_variable}, |
466 | /* Ada */ | |
467 | { | |
468 | vlang_ada, | |
469 | ada_number_of_children, | |
470 | ada_name_of_variable, | |
471 | ada_name_of_child, | |
472 | ada_path_expr_of_child, | |
473 | ada_value_of_root, | |
474 | ada_value_of_child, | |
475 | ada_type_of_child, | |
476 | ada_value_of_variable} | |
8b93c638 JM |
477 | }; |
478 | ||
581e13c1 | 479 | /* A little convenience enum for dealing with C++/Java. */ |
8b93c638 | 480 | enum vsections |
72330bd6 AC |
481 | { |
482 | v_public = 0, v_private, v_protected | |
483 | }; | |
8b93c638 JM |
484 | |
485 | /* Private data */ | |
486 | ||
581e13c1 | 487 | /* Mappings of varobj_display_formats enums to gdb's format codes. */ |
72330bd6 | 488 | static int format_code[] = { 0, 't', 'd', 'x', 'o' }; |
8b93c638 | 489 | |
581e13c1 | 490 | /* Header of the list of root variable objects. */ |
8b93c638 | 491 | static struct varobj_root *rootlist; |
8b93c638 | 492 | |
581e13c1 MS |
493 | /* Prime number indicating the number of buckets in the hash table. */ |
494 | /* A prime large enough to avoid too many colisions. */ | |
8b93c638 JM |
495 | #define VAROBJ_TABLE_SIZE 227 |
496 | ||
581e13c1 | 497 | /* Pointer to the varobj hash table (built at run time). */ |
8b93c638 JM |
498 | static struct vlist **varobj_table; |
499 | ||
581e13c1 | 500 | /* Is the variable X one of our "fake" children? */ |
8b93c638 JM |
501 | #define CPLUS_FAKE_CHILD(x) \ |
502 | ((x) != NULL && (x)->type == NULL && (x)->value == NULL) | |
503 | \f | |
504 | ||
505 | /* API Implementation */ | |
b2c2bd75 VP |
506 | static int |
507 | is_root_p (struct varobj *var) | |
508 | { | |
509 | return (var->root->rootvar == var); | |
510 | } | |
8b93c638 | 511 | |
d452c4bc UW |
512 | #ifdef HAVE_PYTHON |
513 | /* Helper function to install a Python environment suitable for | |
514 | use during operations on VAR. */ | |
515 | struct cleanup * | |
516 | varobj_ensure_python_env (struct varobj *var) | |
517 | { | |
518 | return ensure_python_env (var->root->exp->gdbarch, | |
519 | var->root->exp->language_defn); | |
520 | } | |
521 | #endif | |
522 | ||
581e13c1 | 523 | /* Creates a varobj (not its children). */ |
8b93c638 | 524 | |
7d8547c9 AC |
525 | /* Return the full FRAME which corresponds to the given CORE_ADDR |
526 | or NULL if no FRAME on the chain corresponds to CORE_ADDR. */ | |
527 | ||
528 | static struct frame_info * | |
529 | find_frame_addr_in_frame_chain (CORE_ADDR frame_addr) | |
530 | { | |
531 | struct frame_info *frame = NULL; | |
532 | ||
533 | if (frame_addr == (CORE_ADDR) 0) | |
534 | return NULL; | |
535 | ||
9d49bdc2 PA |
536 | for (frame = get_current_frame (); |
537 | frame != NULL; | |
538 | frame = get_prev_frame (frame)) | |
7d8547c9 | 539 | { |
1fac167a UW |
540 | /* The CORE_ADDR we get as argument was parsed from a string GDB |
541 | output as $fp. This output got truncated to gdbarch_addr_bit. | |
542 | Truncate the frame base address in the same manner before | |
543 | comparing it against our argument. */ | |
544 | CORE_ADDR frame_base = get_frame_base_address (frame); | |
545 | int addr_bit = gdbarch_addr_bit (get_frame_arch (frame)); | |
a109c7c1 | 546 | |
1fac167a UW |
547 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) |
548 | frame_base &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
549 | ||
550 | if (frame_base == frame_addr) | |
7d8547c9 AC |
551 | return frame; |
552 | } | |
9d49bdc2 PA |
553 | |
554 | return NULL; | |
7d8547c9 AC |
555 | } |
556 | ||
8b93c638 JM |
557 | struct varobj * |
558 | varobj_create (char *objname, | |
72330bd6 | 559 | char *expression, CORE_ADDR frame, enum varobj_type type) |
8b93c638 JM |
560 | { |
561 | struct varobj *var; | |
8b93c638 JM |
562 | struct cleanup *old_chain; |
563 | ||
581e13c1 | 564 | /* Fill out a varobj structure for the (root) variable being constructed. */ |
8b93c638 | 565 | var = new_root_variable (); |
74b7792f | 566 | old_chain = make_cleanup_free_variable (var); |
8b93c638 JM |
567 | |
568 | if (expression != NULL) | |
569 | { | |
e4195b40 | 570 | struct frame_info *fi; |
35633fef | 571 | struct frame_id old_id = null_frame_id; |
e4195b40 | 572 | struct block *block; |
8b93c638 JM |
573 | char *p; |
574 | enum varobj_languages lang; | |
e55dccf0 | 575 | struct value *value = NULL; |
8b93c638 | 576 | |
9d49bdc2 PA |
577 | /* Parse and evaluate the expression, filling in as much of the |
578 | variable's data as possible. */ | |
579 | ||
580 | if (has_stack_frames ()) | |
581 | { | |
581e13c1 | 582 | /* Allow creator to specify context of variable. */ |
9d49bdc2 PA |
583 | if ((type == USE_CURRENT_FRAME) || (type == USE_SELECTED_FRAME)) |
584 | fi = get_selected_frame (NULL); | |
585 | else | |
586 | /* FIXME: cagney/2002-11-23: This code should be doing a | |
587 | lookup using the frame ID and not just the frame's | |
588 | ``address''. This, of course, means an interface | |
589 | change. However, with out that interface change ISAs, | |
590 | such as the ia64 with its two stacks, won't work. | |
591 | Similar goes for the case where there is a frameless | |
592 | function. */ | |
593 | fi = find_frame_addr_in_frame_chain (frame); | |
594 | } | |
8b93c638 | 595 | else |
9d49bdc2 | 596 | fi = NULL; |
8b93c638 | 597 | |
581e13c1 | 598 | /* frame = -2 means always use selected frame. */ |
73a93a32 | 599 | if (type == USE_SELECTED_FRAME) |
a5defcdc | 600 | var->root->floating = 1; |
73a93a32 | 601 | |
8b93c638 JM |
602 | block = NULL; |
603 | if (fi != NULL) | |
ae767bfb | 604 | block = get_frame_block (fi, 0); |
8b93c638 JM |
605 | |
606 | p = expression; | |
607 | innermost_block = NULL; | |
73a93a32 | 608 | /* Wrap the call to parse expression, so we can |
581e13c1 | 609 | return a sensible error. */ |
73a93a32 JI |
610 | if (!gdb_parse_exp_1 (&p, block, 0, &var->root->exp)) |
611 | { | |
f748fb40 | 612 | do_cleanups (old_chain); |
73a93a32 JI |
613 | return NULL; |
614 | } | |
8b93c638 | 615 | |
581e13c1 | 616 | /* Don't allow variables to be created for types. */ |
8b93c638 JM |
617 | if (var->root->exp->elts[0].opcode == OP_TYPE) |
618 | { | |
619 | do_cleanups (old_chain); | |
bc8332bb AC |
620 | fprintf_unfiltered (gdb_stderr, "Attempt to use a type name" |
621 | " as an expression.\n"); | |
8b93c638 JM |
622 | return NULL; |
623 | } | |
624 | ||
625 | var->format = variable_default_display (var); | |
626 | var->root->valid_block = innermost_block; | |
1b36a34b | 627 | var->name = xstrdup (expression); |
02142340 | 628 | /* For a root var, the name and the expr are the same. */ |
1b36a34b | 629 | var->path_expr = xstrdup (expression); |
8b93c638 JM |
630 | |
631 | /* When the frame is different from the current frame, | |
632 | we must select the appropriate frame before parsing | |
633 | the expression, otherwise the value will not be current. | |
581e13c1 | 634 | Since select_frame is so benign, just call it for all cases. */ |
4e22772d | 635 | if (innermost_block) |
8b93c638 | 636 | { |
4e22772d JK |
637 | /* User could specify explicit FRAME-ADDR which was not found but |
638 | EXPRESSION is frame specific and we would not be able to evaluate | |
639 | it correctly next time. With VALID_BLOCK set we must also set | |
640 | FRAME and THREAD_ID. */ | |
641 | if (fi == NULL) | |
642 | error (_("Failed to find the specified frame")); | |
643 | ||
7a424e99 | 644 | var->root->frame = get_frame_id (fi); |
c5b48eac | 645 | var->root->thread_id = pid_to_thread_id (inferior_ptid); |
35633fef | 646 | old_id = get_frame_id (get_selected_frame (NULL)); |
c5b48eac | 647 | select_frame (fi); |
8b93c638 JM |
648 | } |
649 | ||
340a7723 | 650 | /* We definitely need to catch errors here. |
8b93c638 | 651 | If evaluate_expression succeeds we got the value we wanted. |
581e13c1 | 652 | But if it fails, we still go on with a call to evaluate_type(). */ |
acd65feb | 653 | if (!gdb_evaluate_expression (var->root->exp, &value)) |
e55dccf0 VP |
654 | { |
655 | /* Error getting the value. Try to at least get the | |
656 | right type. */ | |
657 | struct value *type_only_value = evaluate_type (var->root->exp); | |
a109c7c1 | 658 | |
e55dccf0 VP |
659 | var->type = value_type (type_only_value); |
660 | } | |
661 | else | |
662 | var->type = value_type (value); | |
acd65feb | 663 | |
acd65feb | 664 | install_new_value (var, value, 1 /* Initial assignment */); |
8b93c638 JM |
665 | |
666 | /* Set language info */ | |
667 | lang = variable_language (var); | |
d5d6fca5 | 668 | var->root->lang = &languages[lang]; |
8b93c638 | 669 | |
581e13c1 | 670 | /* Set ourselves as our root. */ |
8b93c638 JM |
671 | var->root->rootvar = var; |
672 | ||
581e13c1 | 673 | /* Reset the selected frame. */ |
35633fef JK |
674 | if (frame_id_p (old_id)) |
675 | select_frame (frame_find_by_id (old_id)); | |
8b93c638 JM |
676 | } |
677 | ||
73a93a32 | 678 | /* If the variable object name is null, that means this |
581e13c1 | 679 | is a temporary variable, so don't install it. */ |
73a93a32 JI |
680 | |
681 | if ((var != NULL) && (objname != NULL)) | |
8b93c638 | 682 | { |
1b36a34b | 683 | var->obj_name = xstrdup (objname); |
8b93c638 JM |
684 | |
685 | /* If a varobj name is duplicated, the install will fail so | |
581e13c1 | 686 | we must cleanup. */ |
8b93c638 JM |
687 | if (!install_variable (var)) |
688 | { | |
689 | do_cleanups (old_chain); | |
690 | return NULL; | |
691 | } | |
692 | } | |
693 | ||
694 | discard_cleanups (old_chain); | |
695 | return var; | |
696 | } | |
697 | ||
581e13c1 | 698 | /* Generates an unique name that can be used for a varobj. */ |
8b93c638 JM |
699 | |
700 | char * | |
701 | varobj_gen_name (void) | |
702 | { | |
703 | static int id = 0; | |
e64d9b3d | 704 | char *obj_name; |
8b93c638 | 705 | |
581e13c1 | 706 | /* Generate a name for this object. */ |
8b93c638 | 707 | id++; |
b435e160 | 708 | obj_name = xstrprintf ("var%d", id); |
8b93c638 | 709 | |
e64d9b3d | 710 | return obj_name; |
8b93c638 JM |
711 | } |
712 | ||
61d8f275 JK |
713 | /* Given an OBJNAME, returns the pointer to the corresponding varobj. Call |
714 | error if OBJNAME cannot be found. */ | |
8b93c638 JM |
715 | |
716 | struct varobj * | |
717 | varobj_get_handle (char *objname) | |
718 | { | |
719 | struct vlist *cv; | |
720 | const char *chp; | |
721 | unsigned int index = 0; | |
722 | unsigned int i = 1; | |
723 | ||
724 | for (chp = objname; *chp; chp++) | |
725 | { | |
726 | index = (index + (i++ * (unsigned int) *chp)) % VAROBJ_TABLE_SIZE; | |
727 | } | |
728 | ||
729 | cv = *(varobj_table + index); | |
730 | while ((cv != NULL) && (strcmp (cv->var->obj_name, objname) != 0)) | |
731 | cv = cv->next; | |
732 | ||
733 | if (cv == NULL) | |
8a3fe4f8 | 734 | error (_("Variable object not found")); |
8b93c638 JM |
735 | |
736 | return cv->var; | |
737 | } | |
738 | ||
581e13c1 | 739 | /* Given the handle, return the name of the object. */ |
8b93c638 JM |
740 | |
741 | char * | |
742 | varobj_get_objname (struct varobj *var) | |
743 | { | |
744 | return var->obj_name; | |
745 | } | |
746 | ||
581e13c1 | 747 | /* Given the handle, return the expression represented by the object. */ |
8b93c638 JM |
748 | |
749 | char * | |
750 | varobj_get_expression (struct varobj *var) | |
751 | { | |
752 | return name_of_variable (var); | |
753 | } | |
754 | ||
755 | /* Deletes a varobj and all its children if only_children == 0, | |
3e43a32a MS |
756 | otherwise deletes only the children; returns a malloc'ed list of |
757 | all the (malloc'ed) names of the variables that have been deleted | |
581e13c1 | 758 | (NULL terminated). */ |
8b93c638 JM |
759 | |
760 | int | |
761 | varobj_delete (struct varobj *var, char ***dellist, int only_children) | |
762 | { | |
763 | int delcount; | |
764 | int mycount; | |
765 | struct cpstack *result = NULL; | |
766 | char **cp; | |
767 | ||
581e13c1 | 768 | /* Initialize a stack for temporary results. */ |
8b93c638 JM |
769 | cppush (&result, NULL); |
770 | ||
771 | if (only_children) | |
581e13c1 | 772 | /* Delete only the variable children. */ |
8b93c638 JM |
773 | delcount = delete_variable (&result, var, 1 /* only the children */ ); |
774 | else | |
581e13c1 | 775 | /* Delete the variable and all its children. */ |
8b93c638 JM |
776 | delcount = delete_variable (&result, var, 0 /* parent+children */ ); |
777 | ||
581e13c1 | 778 | /* We may have been asked to return a list of what has been deleted. */ |
8b93c638 JM |
779 | if (dellist != NULL) |
780 | { | |
781 | *dellist = xmalloc ((delcount + 1) * sizeof (char *)); | |
782 | ||
783 | cp = *dellist; | |
784 | mycount = delcount; | |
785 | *cp = cppop (&result); | |
786 | while ((*cp != NULL) && (mycount > 0)) | |
787 | { | |
788 | mycount--; | |
789 | cp++; | |
790 | *cp = cppop (&result); | |
791 | } | |
792 | ||
793 | if (mycount || (*cp != NULL)) | |
8a3fe4f8 | 794 | warning (_("varobj_delete: assertion failed - mycount(=%d) <> 0"), |
72330bd6 | 795 | mycount); |
8b93c638 JM |
796 | } |
797 | ||
798 | return delcount; | |
799 | } | |
800 | ||
d8b65138 JK |
801 | #if HAVE_PYTHON |
802 | ||
b6313243 TT |
803 | /* Convenience function for varobj_set_visualizer. Instantiate a |
804 | pretty-printer for a given value. */ | |
805 | static PyObject * | |
806 | instantiate_pretty_printer (PyObject *constructor, struct value *value) | |
807 | { | |
b6313243 TT |
808 | PyObject *val_obj = NULL; |
809 | PyObject *printer; | |
b6313243 | 810 | |
b6313243 | 811 | val_obj = value_to_value_object (value); |
b6313243 TT |
812 | if (! val_obj) |
813 | return NULL; | |
814 | ||
815 | printer = PyObject_CallFunctionObjArgs (constructor, val_obj, NULL); | |
816 | Py_DECREF (val_obj); | |
817 | return printer; | |
b6313243 TT |
818 | } |
819 | ||
d8b65138 JK |
820 | #endif |
821 | ||
581e13c1 | 822 | /* Set/Get variable object display format. */ |
8b93c638 JM |
823 | |
824 | enum varobj_display_formats | |
825 | varobj_set_display_format (struct varobj *var, | |
826 | enum varobj_display_formats format) | |
827 | { | |
828 | switch (format) | |
829 | { | |
830 | case FORMAT_NATURAL: | |
831 | case FORMAT_BINARY: | |
832 | case FORMAT_DECIMAL: | |
833 | case FORMAT_HEXADECIMAL: | |
834 | case FORMAT_OCTAL: | |
835 | var->format = format; | |
836 | break; | |
837 | ||
838 | default: | |
839 | var->format = variable_default_display (var); | |
840 | } | |
841 | ||
ae7d22a6 VP |
842 | if (varobj_value_is_changeable_p (var) |
843 | && var->value && !value_lazy (var->value)) | |
844 | { | |
6c761d9c | 845 | xfree (var->print_value); |
d452c4bc | 846 | var->print_value = value_get_print_value (var->value, var->format, var); |
ae7d22a6 VP |
847 | } |
848 | ||
8b93c638 JM |
849 | return var->format; |
850 | } | |
851 | ||
852 | enum varobj_display_formats | |
853 | varobj_get_display_format (struct varobj *var) | |
854 | { | |
855 | return var->format; | |
856 | } | |
857 | ||
b6313243 TT |
858 | char * |
859 | varobj_get_display_hint (struct varobj *var) | |
860 | { | |
861 | char *result = NULL; | |
862 | ||
863 | #if HAVE_PYTHON | |
d452c4bc UW |
864 | struct cleanup *back_to = varobj_ensure_python_env (var); |
865 | ||
b6313243 TT |
866 | if (var->pretty_printer) |
867 | result = gdbpy_get_display_hint (var->pretty_printer); | |
d452c4bc UW |
868 | |
869 | do_cleanups (back_to); | |
b6313243 TT |
870 | #endif |
871 | ||
872 | return result; | |
873 | } | |
874 | ||
0cc7d26f TT |
875 | /* Return true if the varobj has items after TO, false otherwise. */ |
876 | ||
877 | int | |
878 | varobj_has_more (struct varobj *var, int to) | |
879 | { | |
880 | if (VEC_length (varobj_p, var->children) > to) | |
881 | return 1; | |
882 | return ((to == -1 || VEC_length (varobj_p, var->children) == to) | |
883 | && var->saved_item != NULL); | |
884 | } | |
885 | ||
c5b48eac VP |
886 | /* If the variable object is bound to a specific thread, that |
887 | is its evaluation can always be done in context of a frame | |
888 | inside that thread, returns GDB id of the thread -- which | |
581e13c1 | 889 | is always positive. Otherwise, returns -1. */ |
c5b48eac VP |
890 | int |
891 | varobj_get_thread_id (struct varobj *var) | |
892 | { | |
893 | if (var->root->valid_block && var->root->thread_id > 0) | |
894 | return var->root->thread_id; | |
895 | else | |
896 | return -1; | |
897 | } | |
898 | ||
25d5ea92 VP |
899 | void |
900 | varobj_set_frozen (struct varobj *var, int frozen) | |
901 | { | |
902 | /* When a variable is unfrozen, we don't fetch its value. | |
903 | The 'not_fetched' flag remains set, so next -var-update | |
904 | won't complain. | |
905 | ||
906 | We don't fetch the value, because for structures the client | |
907 | should do -var-update anyway. It would be bad to have different | |
908 | client-size logic for structure and other types. */ | |
909 | var->frozen = frozen; | |
910 | } | |
911 | ||
912 | int | |
913 | varobj_get_frozen (struct varobj *var) | |
914 | { | |
915 | return var->frozen; | |
916 | } | |
917 | ||
0cc7d26f TT |
918 | /* A helper function that restricts a range to what is actually |
919 | available in a VEC. This follows the usual rules for the meaning | |
920 | of FROM and TO -- if either is negative, the entire range is | |
921 | used. */ | |
922 | ||
923 | static void | |
924 | restrict_range (VEC (varobj_p) *children, int *from, int *to) | |
925 | { | |
926 | if (*from < 0 || *to < 0) | |
927 | { | |
928 | *from = 0; | |
929 | *to = VEC_length (varobj_p, children); | |
930 | } | |
931 | else | |
932 | { | |
933 | if (*from > VEC_length (varobj_p, children)) | |
934 | *from = VEC_length (varobj_p, children); | |
935 | if (*to > VEC_length (varobj_p, children)) | |
936 | *to = VEC_length (varobj_p, children); | |
937 | if (*from > *to) | |
938 | *from = *to; | |
939 | } | |
940 | } | |
941 | ||
d8b65138 JK |
942 | #if HAVE_PYTHON |
943 | ||
0cc7d26f TT |
944 | /* A helper for update_dynamic_varobj_children that installs a new |
945 | child when needed. */ | |
946 | ||
947 | static void | |
948 | install_dynamic_child (struct varobj *var, | |
949 | VEC (varobj_p) **changed, | |
950 | VEC (varobj_p) **new, | |
951 | VEC (varobj_p) **unchanged, | |
952 | int *cchanged, | |
953 | int index, | |
954 | const char *name, | |
955 | struct value *value) | |
956 | { | |
957 | if (VEC_length (varobj_p, var->children) < index + 1) | |
958 | { | |
959 | /* There's no child yet. */ | |
960 | struct varobj *child = varobj_add_child (var, name, value); | |
a109c7c1 | 961 | |
0cc7d26f TT |
962 | if (new) |
963 | { | |
964 | VEC_safe_push (varobj_p, *new, child); | |
965 | *cchanged = 1; | |
966 | } | |
967 | } | |
968 | else | |
969 | { | |
970 | varobj_p existing = VEC_index (varobj_p, var->children, index); | |
a109c7c1 | 971 | |
0cc7d26f TT |
972 | if (install_new_value (existing, value, 0)) |
973 | { | |
974 | if (changed) | |
975 | VEC_safe_push (varobj_p, *changed, existing); | |
976 | } | |
977 | else if (unchanged) | |
978 | VEC_safe_push (varobj_p, *unchanged, existing); | |
979 | } | |
980 | } | |
981 | ||
0cc7d26f TT |
982 | static int |
983 | dynamic_varobj_has_child_method (struct varobj *var) | |
984 | { | |
985 | struct cleanup *back_to; | |
986 | PyObject *printer = var->pretty_printer; | |
987 | int result; | |
988 | ||
989 | back_to = varobj_ensure_python_env (var); | |
990 | result = PyObject_HasAttr (printer, gdbpy_children_cst); | |
991 | do_cleanups (back_to); | |
992 | return result; | |
993 | } | |
994 | ||
995 | #endif | |
996 | ||
b6313243 TT |
997 | static int |
998 | update_dynamic_varobj_children (struct varobj *var, | |
999 | VEC (varobj_p) **changed, | |
0cc7d26f TT |
1000 | VEC (varobj_p) **new, |
1001 | VEC (varobj_p) **unchanged, | |
1002 | int *cchanged, | |
1003 | int update_children, | |
1004 | int from, | |
1005 | int to) | |
b6313243 TT |
1006 | { |
1007 | #if HAVE_PYTHON | |
b6313243 TT |
1008 | struct cleanup *back_to; |
1009 | PyObject *children; | |
b6313243 | 1010 | int i; |
b6313243 | 1011 | PyObject *printer = var->pretty_printer; |
b6313243 | 1012 | |
d452c4bc | 1013 | back_to = varobj_ensure_python_env (var); |
b6313243 TT |
1014 | |
1015 | *cchanged = 0; | |
1016 | if (!PyObject_HasAttr (printer, gdbpy_children_cst)) | |
1017 | { | |
1018 | do_cleanups (back_to); | |
1019 | return 0; | |
1020 | } | |
1021 | ||
0cc7d26f | 1022 | if (update_children || !var->child_iter) |
b6313243 | 1023 | { |
0cc7d26f TT |
1024 | children = PyObject_CallMethodObjArgs (printer, gdbpy_children_cst, |
1025 | NULL); | |
b6313243 | 1026 | |
0cc7d26f TT |
1027 | if (!children) |
1028 | { | |
1029 | gdbpy_print_stack (); | |
1030 | error (_("Null value returned for children")); | |
1031 | } | |
b6313243 | 1032 | |
0cc7d26f | 1033 | make_cleanup_py_decref (children); |
b6313243 | 1034 | |
0cc7d26f TT |
1035 | if (!PyIter_Check (children)) |
1036 | error (_("Returned value is not iterable")); | |
1037 | ||
1038 | Py_XDECREF (var->child_iter); | |
1039 | var->child_iter = PyObject_GetIter (children); | |
1040 | if (!var->child_iter) | |
1041 | { | |
1042 | gdbpy_print_stack (); | |
1043 | error (_("Could not get children iterator")); | |
1044 | } | |
1045 | ||
1046 | Py_XDECREF (var->saved_item); | |
1047 | var->saved_item = NULL; | |
1048 | ||
1049 | i = 0; | |
b6313243 | 1050 | } |
0cc7d26f TT |
1051 | else |
1052 | i = VEC_length (varobj_p, var->children); | |
b6313243 | 1053 | |
0cc7d26f TT |
1054 | /* We ask for one extra child, so that MI can report whether there |
1055 | are more children. */ | |
1056 | for (; to < 0 || i < to + 1; ++i) | |
b6313243 | 1057 | { |
0cc7d26f | 1058 | PyObject *item; |
a4c8e806 | 1059 | int force_done = 0; |
b6313243 | 1060 | |
0cc7d26f TT |
1061 | /* See if there was a leftover from last time. */ |
1062 | if (var->saved_item) | |
1063 | { | |
1064 | item = var->saved_item; | |
1065 | var->saved_item = NULL; | |
1066 | } | |
1067 | else | |
1068 | item = PyIter_Next (var->child_iter); | |
b6313243 | 1069 | |
0cc7d26f | 1070 | if (!item) |
a4c8e806 TT |
1071 | { |
1072 | /* Normal end of iteration. */ | |
1073 | if (!PyErr_Occurred ()) | |
1074 | break; | |
1075 | ||
1076 | /* If we got a memory error, just use the text as the | |
1077 | item. */ | |
1078 | if (PyErr_ExceptionMatches (gdbpy_gdb_memory_error)) | |
1079 | { | |
1080 | PyObject *type, *value, *trace; | |
1081 | char *name_str, *value_str; | |
1082 | ||
1083 | PyErr_Fetch (&type, &value, &trace); | |
1084 | value_str = gdbpy_exception_to_string (type, value); | |
1085 | Py_XDECREF (type); | |
1086 | Py_XDECREF (value); | |
1087 | Py_XDECREF (trace); | |
1088 | if (!value_str) | |
1089 | { | |
1090 | gdbpy_print_stack (); | |
1091 | break; | |
1092 | } | |
1093 | ||
1094 | name_str = xstrprintf ("<error at %d>", i); | |
1095 | item = Py_BuildValue ("(ss)", name_str, value_str); | |
1096 | xfree (name_str); | |
1097 | xfree (value_str); | |
1098 | if (!item) | |
1099 | { | |
1100 | gdbpy_print_stack (); | |
1101 | break; | |
1102 | } | |
1103 | ||
1104 | force_done = 1; | |
1105 | } | |
1106 | else | |
1107 | { | |
1108 | /* Any other kind of error. */ | |
1109 | gdbpy_print_stack (); | |
1110 | break; | |
1111 | } | |
1112 | } | |
b6313243 | 1113 | |
0cc7d26f TT |
1114 | /* We don't want to push the extra child on any report list. */ |
1115 | if (to < 0 || i < to) | |
b6313243 | 1116 | { |
0cc7d26f | 1117 | PyObject *py_v; |
ddd49eee | 1118 | const char *name; |
0cc7d26f TT |
1119 | struct value *v; |
1120 | struct cleanup *inner; | |
1121 | int can_mention = from < 0 || i >= from; | |
1122 | ||
1123 | inner = make_cleanup_py_decref (item); | |
1124 | ||
1125 | if (!PyArg_ParseTuple (item, "sO", &name, &py_v)) | |
a4c8e806 TT |
1126 | { |
1127 | gdbpy_print_stack (); | |
1128 | error (_("Invalid item from the child list")); | |
1129 | } | |
0cc7d26f TT |
1130 | |
1131 | v = convert_value_from_python (py_v); | |
8dc78533 JK |
1132 | if (v == NULL) |
1133 | gdbpy_print_stack (); | |
0cc7d26f TT |
1134 | install_dynamic_child (var, can_mention ? changed : NULL, |
1135 | can_mention ? new : NULL, | |
1136 | can_mention ? unchanged : NULL, | |
1137 | can_mention ? cchanged : NULL, i, name, v); | |
1138 | do_cleanups (inner); | |
b6313243 | 1139 | } |
0cc7d26f | 1140 | else |
b6313243 | 1141 | { |
0cc7d26f TT |
1142 | Py_XDECREF (var->saved_item); |
1143 | var->saved_item = item; | |
b6313243 | 1144 | |
0cc7d26f TT |
1145 | /* We want to truncate the child list just before this |
1146 | element. */ | |
1147 | break; | |
1148 | } | |
a4c8e806 TT |
1149 | |
1150 | if (force_done) | |
1151 | break; | |
b6313243 TT |
1152 | } |
1153 | ||
1154 | if (i < VEC_length (varobj_p, var->children)) | |
1155 | { | |
0cc7d26f | 1156 | int j; |
a109c7c1 | 1157 | |
0cc7d26f TT |
1158 | *cchanged = 1; |
1159 | for (j = i; j < VEC_length (varobj_p, var->children); ++j) | |
1160 | varobj_delete (VEC_index (varobj_p, var->children, j), NULL, 0); | |
1161 | VEC_truncate (varobj_p, var->children, i); | |
b6313243 | 1162 | } |
0cc7d26f TT |
1163 | |
1164 | /* If there are fewer children than requested, note that the list of | |
1165 | children changed. */ | |
1166 | if (to >= 0 && VEC_length (varobj_p, var->children) < to) | |
1167 | *cchanged = 1; | |
1168 | ||
b6313243 TT |
1169 | var->num_children = VEC_length (varobj_p, var->children); |
1170 | ||
1171 | do_cleanups (back_to); | |
1172 | ||
b6313243 TT |
1173 | return 1; |
1174 | #else | |
1175 | gdb_assert (0 && "should never be called if Python is not enabled"); | |
1176 | #endif | |
1177 | } | |
25d5ea92 | 1178 | |
8b93c638 JM |
1179 | int |
1180 | varobj_get_num_children (struct varobj *var) | |
1181 | { | |
1182 | if (var->num_children == -1) | |
b6313243 | 1183 | { |
0cc7d26f TT |
1184 | if (var->pretty_printer) |
1185 | { | |
1186 | int dummy; | |
1187 | ||
1188 | /* If we have a dynamic varobj, don't report -1 children. | |
1189 | So, try to fetch some children first. */ | |
1190 | update_dynamic_varobj_children (var, NULL, NULL, NULL, &dummy, | |
1191 | 0, 0, 0); | |
1192 | } | |
1193 | else | |
b6313243 TT |
1194 | var->num_children = number_of_children (var); |
1195 | } | |
8b93c638 | 1196 | |
0cc7d26f | 1197 | return var->num_children >= 0 ? var->num_children : 0; |
8b93c638 JM |
1198 | } |
1199 | ||
1200 | /* Creates a list of the immediate children of a variable object; | |
581e13c1 | 1201 | the return code is the number of such children or -1 on error. */ |
8b93c638 | 1202 | |
d56d46f5 | 1203 | VEC (varobj_p)* |
0cc7d26f | 1204 | varobj_list_children (struct varobj *var, int *from, int *to) |
8b93c638 | 1205 | { |
8b93c638 | 1206 | char *name; |
b6313243 TT |
1207 | int i, children_changed; |
1208 | ||
1209 | var->children_requested = 1; | |
1210 | ||
0cc7d26f TT |
1211 | if (var->pretty_printer) |
1212 | { | |
b6313243 TT |
1213 | /* This, in theory, can result in the number of children changing without |
1214 | frontend noticing. But well, calling -var-list-children on the same | |
1215 | varobj twice is not something a sane frontend would do. */ | |
0cc7d26f TT |
1216 | update_dynamic_varobj_children (var, NULL, NULL, NULL, &children_changed, |
1217 | 0, 0, *to); | |
1218 | restrict_range (var->children, from, to); | |
1219 | return var->children; | |
1220 | } | |
8b93c638 | 1221 | |
8b93c638 JM |
1222 | if (var->num_children == -1) |
1223 | var->num_children = number_of_children (var); | |
1224 | ||
74a44383 DJ |
1225 | /* If that failed, give up. */ |
1226 | if (var->num_children == -1) | |
d56d46f5 | 1227 | return var->children; |
74a44383 | 1228 | |
28335dcc VP |
1229 | /* If we're called when the list of children is not yet initialized, |
1230 | allocate enough elements in it. */ | |
1231 | while (VEC_length (varobj_p, var->children) < var->num_children) | |
1232 | VEC_safe_push (varobj_p, var->children, NULL); | |
1233 | ||
8b93c638 JM |
1234 | for (i = 0; i < var->num_children; i++) |
1235 | { | |
d56d46f5 | 1236 | varobj_p existing = VEC_index (varobj_p, var->children, i); |
28335dcc VP |
1237 | |
1238 | if (existing == NULL) | |
1239 | { | |
1240 | /* Either it's the first call to varobj_list_children for | |
1241 | this variable object, and the child was never created, | |
1242 | or it was explicitly deleted by the client. */ | |
1243 | name = name_of_child (var, i); | |
1244 | existing = create_child (var, i, name); | |
1245 | VEC_replace (varobj_p, var->children, i, existing); | |
1246 | } | |
8b93c638 JM |
1247 | } |
1248 | ||
0cc7d26f | 1249 | restrict_range (var->children, from, to); |
d56d46f5 | 1250 | return var->children; |
8b93c638 JM |
1251 | } |
1252 | ||
d8b65138 JK |
1253 | #if HAVE_PYTHON |
1254 | ||
b6313243 TT |
1255 | static struct varobj * |
1256 | varobj_add_child (struct varobj *var, const char *name, struct value *value) | |
1257 | { | |
1258 | varobj_p v = create_child_with_value (var, | |
1259 | VEC_length (varobj_p, var->children), | |
1260 | name, value); | |
a109c7c1 | 1261 | |
b6313243 | 1262 | VEC_safe_push (varobj_p, var->children, v); |
b6313243 TT |
1263 | return v; |
1264 | } | |
1265 | ||
d8b65138 JK |
1266 | #endif /* HAVE_PYTHON */ |
1267 | ||
8b93c638 | 1268 | /* Obtain the type of an object Variable as a string similar to the one gdb |
581e13c1 | 1269 | prints on the console. */ |
8b93c638 JM |
1270 | |
1271 | char * | |
1272 | varobj_get_type (struct varobj *var) | |
1273 | { | |
581e13c1 | 1274 | /* For the "fake" variables, do not return a type. (It's type is |
8756216b DP |
1275 | NULL, too.) |
1276 | Do not return a type for invalid variables as well. */ | |
1277 | if (CPLUS_FAKE_CHILD (var) || !var->root->is_valid) | |
8b93c638 JM |
1278 | return NULL; |
1279 | ||
1a4300e9 | 1280 | return type_to_string (var->type); |
8b93c638 JM |
1281 | } |
1282 | ||
1ecb4ee0 DJ |
1283 | /* Obtain the type of an object variable. */ |
1284 | ||
1285 | struct type * | |
1286 | varobj_get_gdb_type (struct varobj *var) | |
1287 | { | |
1288 | return var->type; | |
1289 | } | |
1290 | ||
02142340 VP |
1291 | /* Return a pointer to the full rooted expression of varobj VAR. |
1292 | If it has not been computed yet, compute it. */ | |
1293 | char * | |
1294 | varobj_get_path_expr (struct varobj *var) | |
1295 | { | |
1296 | if (var->path_expr != NULL) | |
1297 | return var->path_expr; | |
1298 | else | |
1299 | { | |
1300 | /* For root varobjs, we initialize path_expr | |
1301 | when creating varobj, so here it should be | |
1302 | child varobj. */ | |
1303 | gdb_assert (!is_root_p (var)); | |
1304 | return (*var->root->lang->path_expr_of_child) (var); | |
1305 | } | |
1306 | } | |
1307 | ||
8b93c638 JM |
1308 | enum varobj_languages |
1309 | varobj_get_language (struct varobj *var) | |
1310 | { | |
1311 | return variable_language (var); | |
1312 | } | |
1313 | ||
1314 | int | |
1315 | varobj_get_attributes (struct varobj *var) | |
1316 | { | |
1317 | int attributes = 0; | |
1318 | ||
340a7723 | 1319 | if (varobj_editable_p (var)) |
581e13c1 | 1320 | /* FIXME: define masks for attributes. */ |
8b93c638 JM |
1321 | attributes |= 0x00000001; /* Editable */ |
1322 | ||
1323 | return attributes; | |
1324 | } | |
1325 | ||
0cc7d26f TT |
1326 | int |
1327 | varobj_pretty_printed_p (struct varobj *var) | |
1328 | { | |
1329 | return var->pretty_printer != NULL; | |
1330 | } | |
1331 | ||
de051565 MK |
1332 | char * |
1333 | varobj_get_formatted_value (struct varobj *var, | |
1334 | enum varobj_display_formats format) | |
1335 | { | |
1336 | return my_value_of_variable (var, format); | |
1337 | } | |
1338 | ||
8b93c638 JM |
1339 | char * |
1340 | varobj_get_value (struct varobj *var) | |
1341 | { | |
de051565 | 1342 | return my_value_of_variable (var, var->format); |
8b93c638 JM |
1343 | } |
1344 | ||
1345 | /* Set the value of an object variable (if it is editable) to the | |
581e13c1 MS |
1346 | value of the given expression. */ |
1347 | /* Note: Invokes functions that can call error(). */ | |
8b93c638 JM |
1348 | |
1349 | int | |
1350 | varobj_set_value (struct varobj *var, char *expression) | |
1351 | { | |
30b28db1 | 1352 | struct value *val; |
8b93c638 JM |
1353 | |
1354 | /* The argument "expression" contains the variable's new value. | |
581e13c1 MS |
1355 | We need to first construct a legal expression for this -- ugh! */ |
1356 | /* Does this cover all the bases? */ | |
8b93c638 | 1357 | struct expression *exp; |
30b28db1 | 1358 | struct value *value; |
8b93c638 | 1359 | int saved_input_radix = input_radix; |
340a7723 | 1360 | char *s = expression; |
8b93c638 | 1361 | |
340a7723 | 1362 | gdb_assert (varobj_editable_p (var)); |
8b93c638 | 1363 | |
581e13c1 | 1364 | input_radix = 10; /* ALWAYS reset to decimal temporarily. */ |
340a7723 NR |
1365 | exp = parse_exp_1 (&s, 0, 0); |
1366 | if (!gdb_evaluate_expression (exp, &value)) | |
1367 | { | |
581e13c1 | 1368 | /* We cannot proceed without a valid expression. */ |
340a7723 NR |
1369 | xfree (exp); |
1370 | return 0; | |
8b93c638 JM |
1371 | } |
1372 | ||
340a7723 NR |
1373 | /* All types that are editable must also be changeable. */ |
1374 | gdb_assert (varobj_value_is_changeable_p (var)); | |
1375 | ||
1376 | /* The value of a changeable variable object must not be lazy. */ | |
1377 | gdb_assert (!value_lazy (var->value)); | |
1378 | ||
1379 | /* Need to coerce the input. We want to check if the | |
1380 | value of the variable object will be different | |
1381 | after assignment, and the first thing value_assign | |
1382 | does is coerce the input. | |
1383 | For example, if we are assigning an array to a pointer variable we | |
b021a221 | 1384 | should compare the pointer with the array's address, not with the |
340a7723 NR |
1385 | array's content. */ |
1386 | value = coerce_array (value); | |
1387 | ||
1388 | /* The new value may be lazy. gdb_value_assign, or | |
1389 | rather value_contents, will take care of this. | |
1390 | If fetching of the new value will fail, gdb_value_assign | |
1391 | with catch the exception. */ | |
1392 | if (!gdb_value_assign (var->value, value, &val)) | |
1393 | return 0; | |
1394 | ||
1395 | /* If the value has changed, record it, so that next -var-update can | |
1396 | report this change. If a variable had a value of '1', we've set it | |
1397 | to '333' and then set again to '1', when -var-update will report this | |
1398 | variable as changed -- because the first assignment has set the | |
1399 | 'updated' flag. There's no need to optimize that, because return value | |
1400 | of -var-update should be considered an approximation. */ | |
581e13c1 | 1401 | var->updated = install_new_value (var, val, 0 /* Compare values. */); |
340a7723 NR |
1402 | input_radix = saved_input_radix; |
1403 | return 1; | |
8b93c638 JM |
1404 | } |
1405 | ||
0cc7d26f TT |
1406 | #if HAVE_PYTHON |
1407 | ||
1408 | /* A helper function to install a constructor function and visualizer | |
1409 | in a varobj. */ | |
1410 | ||
1411 | static void | |
1412 | install_visualizer (struct varobj *var, PyObject *constructor, | |
1413 | PyObject *visualizer) | |
1414 | { | |
1415 | Py_XDECREF (var->constructor); | |
1416 | var->constructor = constructor; | |
1417 | ||
1418 | Py_XDECREF (var->pretty_printer); | |
1419 | var->pretty_printer = visualizer; | |
1420 | ||
1421 | Py_XDECREF (var->child_iter); | |
1422 | var->child_iter = NULL; | |
1423 | } | |
1424 | ||
1425 | /* Install the default visualizer for VAR. */ | |
1426 | ||
1427 | static void | |
1428 | install_default_visualizer (struct varobj *var) | |
1429 | { | |
d65aec65 PM |
1430 | /* Do not install a visualizer on a CPLUS_FAKE_CHILD. */ |
1431 | if (CPLUS_FAKE_CHILD (var)) | |
1432 | return; | |
1433 | ||
0cc7d26f TT |
1434 | if (pretty_printing) |
1435 | { | |
1436 | PyObject *pretty_printer = NULL; | |
1437 | ||
1438 | if (var->value) | |
1439 | { | |
1440 | pretty_printer = gdbpy_get_varobj_pretty_printer (var->value); | |
1441 | if (! pretty_printer) | |
1442 | { | |
1443 | gdbpy_print_stack (); | |
1444 | error (_("Cannot instantiate printer for default visualizer")); | |
1445 | } | |
1446 | } | |
1447 | ||
1448 | if (pretty_printer == Py_None) | |
1449 | { | |
1450 | Py_DECREF (pretty_printer); | |
1451 | pretty_printer = NULL; | |
1452 | } | |
1453 | ||
1454 | install_visualizer (var, NULL, pretty_printer); | |
1455 | } | |
1456 | } | |
1457 | ||
1458 | /* Instantiate and install a visualizer for VAR using CONSTRUCTOR to | |
1459 | make a new object. */ | |
1460 | ||
1461 | static void | |
1462 | construct_visualizer (struct varobj *var, PyObject *constructor) | |
1463 | { | |
1464 | PyObject *pretty_printer; | |
1465 | ||
d65aec65 PM |
1466 | /* Do not install a visualizer on a CPLUS_FAKE_CHILD. */ |
1467 | if (CPLUS_FAKE_CHILD (var)) | |
1468 | return; | |
1469 | ||
0cc7d26f TT |
1470 | Py_INCREF (constructor); |
1471 | if (constructor == Py_None) | |
1472 | pretty_printer = NULL; | |
1473 | else | |
1474 | { | |
1475 | pretty_printer = instantiate_pretty_printer (constructor, var->value); | |
1476 | if (! pretty_printer) | |
1477 | { | |
1478 | gdbpy_print_stack (); | |
1479 | Py_DECREF (constructor); | |
1480 | constructor = Py_None; | |
1481 | Py_INCREF (constructor); | |
1482 | } | |
1483 | ||
1484 | if (pretty_printer == Py_None) | |
1485 | { | |
1486 | Py_DECREF (pretty_printer); | |
1487 | pretty_printer = NULL; | |
1488 | } | |
1489 | } | |
1490 | ||
1491 | install_visualizer (var, constructor, pretty_printer); | |
1492 | } | |
1493 | ||
1494 | #endif /* HAVE_PYTHON */ | |
1495 | ||
1496 | /* A helper function for install_new_value. This creates and installs | |
1497 | a visualizer for VAR, if appropriate. */ | |
1498 | ||
1499 | static void | |
1500 | install_new_value_visualizer (struct varobj *var) | |
1501 | { | |
1502 | #if HAVE_PYTHON | |
1503 | /* If the constructor is None, then we want the raw value. If VAR | |
1504 | does not have a value, just skip this. */ | |
1505 | if (var->constructor != Py_None && var->value) | |
1506 | { | |
1507 | struct cleanup *cleanup; | |
0cc7d26f TT |
1508 | |
1509 | cleanup = varobj_ensure_python_env (var); | |
1510 | ||
1511 | if (!var->constructor) | |
1512 | install_default_visualizer (var); | |
1513 | else | |
1514 | construct_visualizer (var, var->constructor); | |
1515 | ||
1516 | do_cleanups (cleanup); | |
1517 | } | |
1518 | #else | |
1519 | /* Do nothing. */ | |
1520 | #endif | |
1521 | } | |
1522 | ||
acd65feb VP |
1523 | /* Assign a new value to a variable object. If INITIAL is non-zero, |
1524 | this is the first assignement after the variable object was just | |
1525 | created, or changed type. In that case, just assign the value | |
1526 | and return 0. | |
581e13c1 MS |
1527 | Otherwise, assign the new value, and return 1 if the value is |
1528 | different from the current one, 0 otherwise. The comparison is | |
1529 | done on textual representation of value. Therefore, some types | |
1530 | need not be compared. E.g. for structures the reported value is | |
1531 | always "{...}", so no comparison is necessary here. If the old | |
1532 | value was NULL and new one is not, or vice versa, we always return 1. | |
b26ed50d VP |
1533 | |
1534 | The VALUE parameter should not be released -- the function will | |
1535 | take care of releasing it when needed. */ | |
acd65feb VP |
1536 | static int |
1537 | install_new_value (struct varobj *var, struct value *value, int initial) | |
1538 | { | |
1539 | int changeable; | |
1540 | int need_to_fetch; | |
1541 | int changed = 0; | |
25d5ea92 | 1542 | int intentionally_not_fetched = 0; |
7a4d50bf | 1543 | char *print_value = NULL; |
acd65feb | 1544 | |
acd65feb | 1545 | /* We need to know the varobj's type to decide if the value should |
3e43a32a | 1546 | be fetched or not. C++ fake children (public/protected/private) |
581e13c1 | 1547 | don't have a type. */ |
acd65feb | 1548 | gdb_assert (var->type || CPLUS_FAKE_CHILD (var)); |
b2c2bd75 | 1549 | changeable = varobj_value_is_changeable_p (var); |
b6313243 TT |
1550 | |
1551 | /* If the type has custom visualizer, we consider it to be always | |
581e13c1 | 1552 | changeable. FIXME: need to make sure this behaviour will not |
b6313243 TT |
1553 | mess up read-sensitive values. */ |
1554 | if (var->pretty_printer) | |
1555 | changeable = 1; | |
1556 | ||
acd65feb VP |
1557 | need_to_fetch = changeable; |
1558 | ||
b26ed50d VP |
1559 | /* We are not interested in the address of references, and given |
1560 | that in C++ a reference is not rebindable, it cannot | |
1561 | meaningfully change. So, get hold of the real value. */ | |
1562 | if (value) | |
0cc7d26f | 1563 | value = coerce_ref (value); |
b26ed50d | 1564 | |
acd65feb VP |
1565 | if (var->type && TYPE_CODE (var->type) == TYPE_CODE_UNION) |
1566 | /* For unions, we need to fetch the value implicitly because | |
1567 | of implementation of union member fetch. When gdb | |
1568 | creates a value for a field and the value of the enclosing | |
1569 | structure is not lazy, it immediately copies the necessary | |
1570 | bytes from the enclosing values. If the enclosing value is | |
1571 | lazy, the call to value_fetch_lazy on the field will read | |
1572 | the data from memory. For unions, that means we'll read the | |
1573 | same memory more than once, which is not desirable. So | |
1574 | fetch now. */ | |
1575 | need_to_fetch = 1; | |
1576 | ||
1577 | /* The new value might be lazy. If the type is changeable, | |
1578 | that is we'll be comparing values of this type, fetch the | |
1579 | value now. Otherwise, on the next update the old value | |
1580 | will be lazy, which means we've lost that old value. */ | |
1581 | if (need_to_fetch && value && value_lazy (value)) | |
1582 | { | |
25d5ea92 VP |
1583 | struct varobj *parent = var->parent; |
1584 | int frozen = var->frozen; | |
a109c7c1 | 1585 | |
25d5ea92 VP |
1586 | for (; !frozen && parent; parent = parent->parent) |
1587 | frozen |= parent->frozen; | |
1588 | ||
1589 | if (frozen && initial) | |
1590 | { | |
1591 | /* For variables that are frozen, or are children of frozen | |
1592 | variables, we don't do fetch on initial assignment. | |
1593 | For non-initial assignemnt we do the fetch, since it means we're | |
1594 | explicitly asked to compare the new value with the old one. */ | |
1595 | intentionally_not_fetched = 1; | |
1596 | } | |
1597 | else if (!gdb_value_fetch_lazy (value)) | |
acd65feb | 1598 | { |
acd65feb VP |
1599 | /* Set the value to NULL, so that for the next -var-update, |
1600 | we don't try to compare the new value with this value, | |
1601 | that we couldn't even read. */ | |
1602 | value = NULL; | |
1603 | } | |
acd65feb VP |
1604 | } |
1605 | ||
e848a8a5 TT |
1606 | /* Get a reference now, before possibly passing it to any Python |
1607 | code that might release it. */ | |
1608 | if (value != NULL) | |
1609 | value_incref (value); | |
b6313243 | 1610 | |
7a4d50bf VP |
1611 | /* Below, we'll be comparing string rendering of old and new |
1612 | values. Don't get string rendering if the value is | |
1613 | lazy -- if it is, the code above has decided that the value | |
1614 | should not be fetched. */ | |
0cc7d26f | 1615 | if (value && !value_lazy (value) && !var->pretty_printer) |
d452c4bc | 1616 | print_value = value_get_print_value (value, var->format, var); |
7a4d50bf | 1617 | |
acd65feb VP |
1618 | /* If the type is changeable, compare the old and the new values. |
1619 | If this is the initial assignment, we don't have any old value | |
1620 | to compare with. */ | |
7a4d50bf | 1621 | if (!initial && changeable) |
acd65feb | 1622 | { |
3e43a32a MS |
1623 | /* If the value of the varobj was changed by -var-set-value, |
1624 | then the value in the varobj and in the target is the same. | |
1625 | However, that value is different from the value that the | |
581e13c1 | 1626 | varobj had after the previous -var-update. So need to the |
3e43a32a | 1627 | varobj as changed. */ |
acd65feb | 1628 | if (var->updated) |
57e66780 | 1629 | { |
57e66780 DJ |
1630 | changed = 1; |
1631 | } | |
0cc7d26f | 1632 | else if (! var->pretty_printer) |
acd65feb VP |
1633 | { |
1634 | /* Try to compare the values. That requires that both | |
1635 | values are non-lazy. */ | |
25d5ea92 VP |
1636 | if (var->not_fetched && value_lazy (var->value)) |
1637 | { | |
1638 | /* This is a frozen varobj and the value was never read. | |
1639 | Presumably, UI shows some "never read" indicator. | |
1640 | Now that we've fetched the real value, we need to report | |
1641 | this varobj as changed so that UI can show the real | |
1642 | value. */ | |
1643 | changed = 1; | |
1644 | } | |
1645 | else if (var->value == NULL && value == NULL) | |
581e13c1 | 1646 | /* Equal. */ |
acd65feb VP |
1647 | ; |
1648 | else if (var->value == NULL || value == NULL) | |
57e66780 | 1649 | { |
57e66780 DJ |
1650 | changed = 1; |
1651 | } | |
acd65feb VP |
1652 | else |
1653 | { | |
1654 | gdb_assert (!value_lazy (var->value)); | |
1655 | gdb_assert (!value_lazy (value)); | |
85265413 | 1656 | |
57e66780 | 1657 | gdb_assert (var->print_value != NULL && print_value != NULL); |
85265413 | 1658 | if (strcmp (var->print_value, print_value) != 0) |
7a4d50bf | 1659 | changed = 1; |
acd65feb VP |
1660 | } |
1661 | } | |
1662 | } | |
85265413 | 1663 | |
ee342b23 VP |
1664 | if (!initial && !changeable) |
1665 | { | |
1666 | /* For values that are not changeable, we don't compare the values. | |
1667 | However, we want to notice if a value was not NULL and now is NULL, | |
1668 | or vise versa, so that we report when top-level varobjs come in scope | |
1669 | and leave the scope. */ | |
1670 | changed = (var->value != NULL) != (value != NULL); | |
1671 | } | |
1672 | ||
acd65feb | 1673 | /* We must always keep the new value, since children depend on it. */ |
25d5ea92 | 1674 | if (var->value != NULL && var->value != value) |
acd65feb VP |
1675 | value_free (var->value); |
1676 | var->value = value; | |
25d5ea92 VP |
1677 | if (value && value_lazy (value) && intentionally_not_fetched) |
1678 | var->not_fetched = 1; | |
1679 | else | |
1680 | var->not_fetched = 0; | |
acd65feb | 1681 | var->updated = 0; |
85265413 | 1682 | |
0cc7d26f TT |
1683 | install_new_value_visualizer (var); |
1684 | ||
1685 | /* If we installed a pretty-printer, re-compare the printed version | |
1686 | to see if the variable changed. */ | |
1687 | if (var->pretty_printer) | |
1688 | { | |
1689 | xfree (print_value); | |
1690 | print_value = value_get_print_value (var->value, var->format, var); | |
e8f781e2 TT |
1691 | if ((var->print_value == NULL && print_value != NULL) |
1692 | || (var->print_value != NULL && print_value == NULL) | |
1693 | || (var->print_value != NULL && print_value != NULL | |
1694 | && strcmp (var->print_value, print_value) != 0)) | |
0cc7d26f TT |
1695 | changed = 1; |
1696 | } | |
1697 | if (var->print_value) | |
1698 | xfree (var->print_value); | |
1699 | var->print_value = print_value; | |
1700 | ||
b26ed50d | 1701 | gdb_assert (!var->value || value_type (var->value)); |
acd65feb VP |
1702 | |
1703 | return changed; | |
1704 | } | |
acd65feb | 1705 | |
0cc7d26f TT |
1706 | /* Return the requested range for a varobj. VAR is the varobj. FROM |
1707 | and TO are out parameters; *FROM and *TO will be set to the | |
1708 | selected sub-range of VAR. If no range was selected using | |
1709 | -var-set-update-range, then both will be -1. */ | |
1710 | void | |
1711 | varobj_get_child_range (struct varobj *var, int *from, int *to) | |
b6313243 | 1712 | { |
0cc7d26f TT |
1713 | *from = var->from; |
1714 | *to = var->to; | |
b6313243 TT |
1715 | } |
1716 | ||
0cc7d26f TT |
1717 | /* Set the selected sub-range of children of VAR to start at index |
1718 | FROM and end at index TO. If either FROM or TO is less than zero, | |
1719 | this is interpreted as a request for all children. */ | |
1720 | void | |
1721 | varobj_set_child_range (struct varobj *var, int from, int to) | |
b6313243 | 1722 | { |
0cc7d26f TT |
1723 | var->from = from; |
1724 | var->to = to; | |
b6313243 TT |
1725 | } |
1726 | ||
1727 | void | |
1728 | varobj_set_visualizer (struct varobj *var, const char *visualizer) | |
1729 | { | |
1730 | #if HAVE_PYTHON | |
34fa1d9d MS |
1731 | PyObject *mainmod, *globals, *constructor; |
1732 | struct cleanup *back_to; | |
b6313243 | 1733 | |
d452c4bc | 1734 | back_to = varobj_ensure_python_env (var); |
b6313243 TT |
1735 | |
1736 | mainmod = PyImport_AddModule ("__main__"); | |
1737 | globals = PyModule_GetDict (mainmod); | |
1738 | Py_INCREF (globals); | |
1739 | make_cleanup_py_decref (globals); | |
1740 | ||
1741 | constructor = PyRun_String (visualizer, Py_eval_input, globals, globals); | |
b6313243 | 1742 | |
0cc7d26f | 1743 | if (! constructor) |
b6313243 TT |
1744 | { |
1745 | gdbpy_print_stack (); | |
da1f2771 | 1746 | error (_("Could not evaluate visualizer expression: %s"), visualizer); |
b6313243 TT |
1747 | } |
1748 | ||
0cc7d26f TT |
1749 | construct_visualizer (var, constructor); |
1750 | Py_XDECREF (constructor); | |
b6313243 | 1751 | |
0cc7d26f TT |
1752 | /* If there are any children now, wipe them. */ |
1753 | varobj_delete (var, NULL, 1 /* children only */); | |
1754 | var->num_children = -1; | |
b6313243 TT |
1755 | |
1756 | do_cleanups (back_to); | |
1757 | #else | |
da1f2771 | 1758 | error (_("Python support required")); |
b6313243 TT |
1759 | #endif |
1760 | } | |
1761 | ||
8b93c638 JM |
1762 | /* Update the values for a variable and its children. This is a |
1763 | two-pronged attack. First, re-parse the value for the root's | |
1764 | expression to see if it's changed. Then go all the way | |
1765 | through its children, reconstructing them and noting if they've | |
1766 | changed. | |
1767 | ||
25d5ea92 VP |
1768 | The EXPLICIT parameter specifies if this call is result |
1769 | of MI request to update this specific variable, or | |
581e13c1 | 1770 | result of implicit -var-update *. For implicit request, we don't |
25d5ea92 | 1771 | update frozen variables. |
705da579 | 1772 | |
581e13c1 | 1773 | NOTE: This function may delete the caller's varobj. If it |
8756216b DP |
1774 | returns TYPE_CHANGED, then it has done this and VARP will be modified |
1775 | to point to the new varobj. */ | |
8b93c638 | 1776 | |
1417b39d JB |
1777 | VEC(varobj_update_result) * |
1778 | varobj_update (struct varobj **varp, int explicit) | |
8b93c638 JM |
1779 | { |
1780 | int changed = 0; | |
25d5ea92 | 1781 | int type_changed = 0; |
8b93c638 | 1782 | int i; |
30b28db1 | 1783 | struct value *new; |
b6313243 | 1784 | VEC (varobj_update_result) *stack = NULL; |
f7f9ae2c | 1785 | VEC (varobj_update_result) *result = NULL; |
8b93c638 | 1786 | |
25d5ea92 VP |
1787 | /* Frozen means frozen -- we don't check for any change in |
1788 | this varobj, including its going out of scope, or | |
1789 | changing type. One use case for frozen varobjs is | |
1790 | retaining previously evaluated expressions, and we don't | |
1791 | want them to be reevaluated at all. */ | |
1792 | if (!explicit && (*varp)->frozen) | |
f7f9ae2c | 1793 | return result; |
8756216b DP |
1794 | |
1795 | if (!(*varp)->root->is_valid) | |
f7f9ae2c | 1796 | { |
cfce2ea2 | 1797 | varobj_update_result r = {0}; |
a109c7c1 | 1798 | |
cfce2ea2 | 1799 | r.varobj = *varp; |
f7f9ae2c VP |
1800 | r.status = VAROBJ_INVALID; |
1801 | VEC_safe_push (varobj_update_result, result, &r); | |
1802 | return result; | |
1803 | } | |
8b93c638 | 1804 | |
25d5ea92 | 1805 | if ((*varp)->root->rootvar == *varp) |
ae093f96 | 1806 | { |
cfce2ea2 | 1807 | varobj_update_result r = {0}; |
a109c7c1 | 1808 | |
cfce2ea2 | 1809 | r.varobj = *varp; |
f7f9ae2c VP |
1810 | r.status = VAROBJ_IN_SCOPE; |
1811 | ||
581e13c1 | 1812 | /* Update the root variable. value_of_root can return NULL |
25d5ea92 | 1813 | if the variable is no longer around, i.e. we stepped out of |
581e13c1 | 1814 | the frame in which a local existed. We are letting the |
25d5ea92 VP |
1815 | value_of_root variable dispose of the varobj if the type |
1816 | has changed. */ | |
25d5ea92 | 1817 | new = value_of_root (varp, &type_changed); |
f7f9ae2c VP |
1818 | r.varobj = *varp; |
1819 | ||
1820 | r.type_changed = type_changed; | |
ea56f9c2 | 1821 | if (install_new_value ((*varp), new, type_changed)) |
f7f9ae2c | 1822 | r.changed = 1; |
ea56f9c2 | 1823 | |
25d5ea92 | 1824 | if (new == NULL) |
f7f9ae2c | 1825 | r.status = VAROBJ_NOT_IN_SCOPE; |
b6313243 | 1826 | r.value_installed = 1; |
f7f9ae2c VP |
1827 | |
1828 | if (r.status == VAROBJ_NOT_IN_SCOPE) | |
b6313243 | 1829 | { |
0b4bc29a JK |
1830 | if (r.type_changed || r.changed) |
1831 | VEC_safe_push (varobj_update_result, result, &r); | |
b6313243 TT |
1832 | return result; |
1833 | } | |
1834 | ||
1835 | VEC_safe_push (varobj_update_result, stack, &r); | |
1836 | } | |
1837 | else | |
1838 | { | |
cfce2ea2 | 1839 | varobj_update_result r = {0}; |
a109c7c1 | 1840 | |
cfce2ea2 | 1841 | r.varobj = *varp; |
b6313243 | 1842 | VEC_safe_push (varobj_update_result, stack, &r); |
b20d8971 | 1843 | } |
8b93c638 | 1844 | |
8756216b | 1845 | /* Walk through the children, reconstructing them all. */ |
b6313243 | 1846 | while (!VEC_empty (varobj_update_result, stack)) |
8b93c638 | 1847 | { |
b6313243 TT |
1848 | varobj_update_result r = *(VEC_last (varobj_update_result, stack)); |
1849 | struct varobj *v = r.varobj; | |
1850 | ||
1851 | VEC_pop (varobj_update_result, stack); | |
1852 | ||
1853 | /* Update this variable, unless it's a root, which is already | |
1854 | updated. */ | |
1855 | if (!r.value_installed) | |
1856 | { | |
1857 | new = value_of_child (v->parent, v->index); | |
1858 | if (install_new_value (v, new, 0 /* type not changed */)) | |
1859 | { | |
1860 | r.changed = 1; | |
1861 | v->updated = 0; | |
1862 | } | |
1863 | } | |
1864 | ||
1865 | /* We probably should not get children of a varobj that has a | |
1866 | pretty-printer, but for which -var-list-children was never | |
581e13c1 | 1867 | invoked. */ |
b6313243 TT |
1868 | if (v->pretty_printer) |
1869 | { | |
0cc7d26f | 1870 | VEC (varobj_p) *changed = 0, *new = 0, *unchanged = 0; |
26f9bcee | 1871 | int i, children_changed = 0; |
b6313243 TT |
1872 | |
1873 | if (v->frozen) | |
1874 | continue; | |
1875 | ||
0cc7d26f TT |
1876 | if (!v->children_requested) |
1877 | { | |
1878 | int dummy; | |
1879 | ||
1880 | /* If we initially did not have potential children, but | |
1881 | now we do, consider the varobj as changed. | |
1882 | Otherwise, if children were never requested, consider | |
1883 | it as unchanged -- presumably, such varobj is not yet | |
1884 | expanded in the UI, so we need not bother getting | |
1885 | it. */ | |
1886 | if (!varobj_has_more (v, 0)) | |
1887 | { | |
1888 | update_dynamic_varobj_children (v, NULL, NULL, NULL, | |
1889 | &dummy, 0, 0, 0); | |
1890 | if (varobj_has_more (v, 0)) | |
1891 | r.changed = 1; | |
1892 | } | |
1893 | ||
1894 | if (r.changed) | |
1895 | VEC_safe_push (varobj_update_result, result, &r); | |
1896 | ||
1897 | continue; | |
1898 | } | |
1899 | ||
b6313243 TT |
1900 | /* If update_dynamic_varobj_children returns 0, then we have |
1901 | a non-conforming pretty-printer, so we skip it. */ | |
0cc7d26f TT |
1902 | if (update_dynamic_varobj_children (v, &changed, &new, &unchanged, |
1903 | &children_changed, 1, | |
1904 | v->from, v->to)) | |
b6313243 | 1905 | { |
0cc7d26f | 1906 | if (children_changed || new) |
b6313243 | 1907 | { |
0cc7d26f TT |
1908 | r.children_changed = 1; |
1909 | r.new = new; | |
b6313243 | 1910 | } |
0cc7d26f TT |
1911 | /* Push in reverse order so that the first child is |
1912 | popped from the work stack first, and so will be | |
1913 | added to result first. This does not affect | |
1914 | correctness, just "nicer". */ | |
1915 | for (i = VEC_length (varobj_p, changed) - 1; i >= 0; --i) | |
b6313243 | 1916 | { |
0cc7d26f | 1917 | varobj_p tmp = VEC_index (varobj_p, changed, i); |
cfce2ea2 | 1918 | varobj_update_result r = {0}; |
a109c7c1 | 1919 | |
cfce2ea2 | 1920 | r.varobj = tmp; |
0cc7d26f | 1921 | r.changed = 1; |
b6313243 TT |
1922 | r.value_installed = 1; |
1923 | VEC_safe_push (varobj_update_result, stack, &r); | |
1924 | } | |
0cc7d26f TT |
1925 | for (i = VEC_length (varobj_p, unchanged) - 1; i >= 0; --i) |
1926 | { | |
1927 | varobj_p tmp = VEC_index (varobj_p, unchanged, i); | |
a109c7c1 | 1928 | |
0cc7d26f TT |
1929 | if (!tmp->frozen) |
1930 | { | |
cfce2ea2 | 1931 | varobj_update_result r = {0}; |
a109c7c1 | 1932 | |
cfce2ea2 | 1933 | r.varobj = tmp; |
0cc7d26f TT |
1934 | r.value_installed = 1; |
1935 | VEC_safe_push (varobj_update_result, stack, &r); | |
1936 | } | |
1937 | } | |
b6313243 TT |
1938 | if (r.changed || r.children_changed) |
1939 | VEC_safe_push (varobj_update_result, result, &r); | |
0cc7d26f TT |
1940 | |
1941 | /* Free CHANGED and UNCHANGED, but not NEW, because NEW | |
1942 | has been put into the result vector. */ | |
1943 | VEC_free (varobj_p, changed); | |
1944 | VEC_free (varobj_p, unchanged); | |
1945 | ||
b6313243 TT |
1946 | continue; |
1947 | } | |
1948 | } | |
28335dcc VP |
1949 | |
1950 | /* Push any children. Use reverse order so that the first | |
1951 | child is popped from the work stack first, and so | |
1952 | will be added to result first. This does not | |
1953 | affect correctness, just "nicer". */ | |
1954 | for (i = VEC_length (varobj_p, v->children)-1; i >= 0; --i) | |
8b93c638 | 1955 | { |
28335dcc | 1956 | varobj_p c = VEC_index (varobj_p, v->children, i); |
a109c7c1 | 1957 | |
28335dcc | 1958 | /* Child may be NULL if explicitly deleted by -var-delete. */ |
25d5ea92 | 1959 | if (c != NULL && !c->frozen) |
28335dcc | 1960 | { |
cfce2ea2 | 1961 | varobj_update_result r = {0}; |
a109c7c1 | 1962 | |
cfce2ea2 | 1963 | r.varobj = c; |
b6313243 | 1964 | VEC_safe_push (varobj_update_result, stack, &r); |
28335dcc | 1965 | } |
8b93c638 | 1966 | } |
b6313243 TT |
1967 | |
1968 | if (r.changed || r.type_changed) | |
1969 | VEC_safe_push (varobj_update_result, result, &r); | |
8b93c638 JM |
1970 | } |
1971 | ||
b6313243 TT |
1972 | VEC_free (varobj_update_result, stack); |
1973 | ||
f7f9ae2c | 1974 | return result; |
8b93c638 JM |
1975 | } |
1976 | \f | |
1977 | ||
1978 | /* Helper functions */ | |
1979 | ||
1980 | /* | |
1981 | * Variable object construction/destruction | |
1982 | */ | |
1983 | ||
1984 | static int | |
fba45db2 KB |
1985 | delete_variable (struct cpstack **resultp, struct varobj *var, |
1986 | int only_children_p) | |
8b93c638 JM |
1987 | { |
1988 | int delcount = 0; | |
1989 | ||
1990 | delete_variable_1 (resultp, &delcount, var, | |
1991 | only_children_p, 1 /* remove_from_parent_p */ ); | |
1992 | ||
1993 | return delcount; | |
1994 | } | |
1995 | ||
581e13c1 | 1996 | /* Delete the variable object VAR and its children. */ |
8b93c638 JM |
1997 | /* IMPORTANT NOTE: If we delete a variable which is a child |
1998 | and the parent is not removed we dump core. It must be always | |
581e13c1 | 1999 | initially called with remove_from_parent_p set. */ |
8b93c638 | 2000 | static void |
72330bd6 AC |
2001 | delete_variable_1 (struct cpstack **resultp, int *delcountp, |
2002 | struct varobj *var, int only_children_p, | |
2003 | int remove_from_parent_p) | |
8b93c638 | 2004 | { |
28335dcc | 2005 | int i; |
8b93c638 | 2006 | |
581e13c1 | 2007 | /* Delete any children of this variable, too. */ |
28335dcc VP |
2008 | for (i = 0; i < VEC_length (varobj_p, var->children); ++i) |
2009 | { | |
2010 | varobj_p child = VEC_index (varobj_p, var->children, i); | |
a109c7c1 | 2011 | |
214270ab VP |
2012 | if (!child) |
2013 | continue; | |
8b93c638 | 2014 | if (!remove_from_parent_p) |
28335dcc VP |
2015 | child->parent = NULL; |
2016 | delete_variable_1 (resultp, delcountp, child, 0, only_children_p); | |
8b93c638 | 2017 | } |
28335dcc | 2018 | VEC_free (varobj_p, var->children); |
8b93c638 | 2019 | |
581e13c1 | 2020 | /* if we were called to delete only the children we are done here. */ |
8b93c638 JM |
2021 | if (only_children_p) |
2022 | return; | |
2023 | ||
581e13c1 | 2024 | /* Otherwise, add it to the list of deleted ones and proceed to do so. */ |
73a93a32 | 2025 | /* If the name is null, this is a temporary variable, that has not |
581e13c1 | 2026 | yet been installed, don't report it, it belongs to the caller... */ |
73a93a32 | 2027 | if (var->obj_name != NULL) |
8b93c638 | 2028 | { |
5b616ba1 | 2029 | cppush (resultp, xstrdup (var->obj_name)); |
8b93c638 JM |
2030 | *delcountp = *delcountp + 1; |
2031 | } | |
2032 | ||
581e13c1 | 2033 | /* If this variable has a parent, remove it from its parent's list. */ |
8b93c638 JM |
2034 | /* OPTIMIZATION: if the parent of this variable is also being deleted, |
2035 | (as indicated by remove_from_parent_p) we don't bother doing an | |
2036 | expensive list search to find the element to remove when we are | |
581e13c1 | 2037 | discarding the list afterwards. */ |
72330bd6 | 2038 | if ((remove_from_parent_p) && (var->parent != NULL)) |
8b93c638 | 2039 | { |
28335dcc | 2040 | VEC_replace (varobj_p, var->parent->children, var->index, NULL); |
8b93c638 | 2041 | } |
72330bd6 | 2042 | |
73a93a32 JI |
2043 | if (var->obj_name != NULL) |
2044 | uninstall_variable (var); | |
8b93c638 | 2045 | |
581e13c1 | 2046 | /* Free memory associated with this variable. */ |
8b93c638 JM |
2047 | free_variable (var); |
2048 | } | |
2049 | ||
581e13c1 | 2050 | /* Install the given variable VAR with the object name VAR->OBJ_NAME. */ |
8b93c638 | 2051 | static int |
fba45db2 | 2052 | install_variable (struct varobj *var) |
8b93c638 JM |
2053 | { |
2054 | struct vlist *cv; | |
2055 | struct vlist *newvl; | |
2056 | const char *chp; | |
2057 | unsigned int index = 0; | |
2058 | unsigned int i = 1; | |
2059 | ||
2060 | for (chp = var->obj_name; *chp; chp++) | |
2061 | { | |
2062 | index = (index + (i++ * (unsigned int) *chp)) % VAROBJ_TABLE_SIZE; | |
2063 | } | |
2064 | ||
2065 | cv = *(varobj_table + index); | |
2066 | while ((cv != NULL) && (strcmp (cv->var->obj_name, var->obj_name) != 0)) | |
2067 | cv = cv->next; | |
2068 | ||
2069 | if (cv != NULL) | |
8a3fe4f8 | 2070 | error (_("Duplicate variable object name")); |
8b93c638 | 2071 | |
581e13c1 | 2072 | /* Add varobj to hash table. */ |
8b93c638 JM |
2073 | newvl = xmalloc (sizeof (struct vlist)); |
2074 | newvl->next = *(varobj_table + index); | |
2075 | newvl->var = var; | |
2076 | *(varobj_table + index) = newvl; | |
2077 | ||
581e13c1 | 2078 | /* If root, add varobj to root list. */ |
b2c2bd75 | 2079 | if (is_root_p (var)) |
8b93c638 | 2080 | { |
581e13c1 | 2081 | /* Add to list of root variables. */ |
8b93c638 JM |
2082 | if (rootlist == NULL) |
2083 | var->root->next = NULL; | |
2084 | else | |
2085 | var->root->next = rootlist; | |
2086 | rootlist = var->root; | |
8b93c638 JM |
2087 | } |
2088 | ||
2089 | return 1; /* OK */ | |
2090 | } | |
2091 | ||
581e13c1 | 2092 | /* Unistall the object VAR. */ |
8b93c638 | 2093 | static void |
fba45db2 | 2094 | uninstall_variable (struct varobj *var) |
8b93c638 JM |
2095 | { |
2096 | struct vlist *cv; | |
2097 | struct vlist *prev; | |
2098 | struct varobj_root *cr; | |
2099 | struct varobj_root *prer; | |
2100 | const char *chp; | |
2101 | unsigned int index = 0; | |
2102 | unsigned int i = 1; | |
2103 | ||
581e13c1 | 2104 | /* Remove varobj from hash table. */ |
8b93c638 JM |
2105 | for (chp = var->obj_name; *chp; chp++) |
2106 | { | |
2107 | index = (index + (i++ * (unsigned int) *chp)) % VAROBJ_TABLE_SIZE; | |
2108 | } | |
2109 | ||
2110 | cv = *(varobj_table + index); | |
2111 | prev = NULL; | |
2112 | while ((cv != NULL) && (strcmp (cv->var->obj_name, var->obj_name) != 0)) | |
2113 | { | |
2114 | prev = cv; | |
2115 | cv = cv->next; | |
2116 | } | |
2117 | ||
2118 | if (varobjdebug) | |
2119 | fprintf_unfiltered (gdb_stdlog, "Deleting %s\n", var->obj_name); | |
2120 | ||
2121 | if (cv == NULL) | |
2122 | { | |
72330bd6 AC |
2123 | warning |
2124 | ("Assertion failed: Could not find variable object \"%s\" to delete", | |
2125 | var->obj_name); | |
8b93c638 JM |
2126 | return; |
2127 | } | |
2128 | ||
2129 | if (prev == NULL) | |
2130 | *(varobj_table + index) = cv->next; | |
2131 | else | |
2132 | prev->next = cv->next; | |
2133 | ||
b8c9b27d | 2134 | xfree (cv); |
8b93c638 | 2135 | |
581e13c1 | 2136 | /* If root, remove varobj from root list. */ |
b2c2bd75 | 2137 | if (is_root_p (var)) |
8b93c638 | 2138 | { |
581e13c1 | 2139 | /* Remove from list of root variables. */ |
8b93c638 JM |
2140 | if (rootlist == var->root) |
2141 | rootlist = var->root->next; | |
2142 | else | |
2143 | { | |
2144 | prer = NULL; | |
2145 | cr = rootlist; | |
2146 | while ((cr != NULL) && (cr->rootvar != var)) | |
2147 | { | |
2148 | prer = cr; | |
2149 | cr = cr->next; | |
2150 | } | |
2151 | if (cr == NULL) | |
2152 | { | |
8f7e195f JB |
2153 | warning (_("Assertion failed: Could not find " |
2154 | "varobj \"%s\" in root list"), | |
3e43a32a | 2155 | var->obj_name); |
8b93c638 JM |
2156 | return; |
2157 | } | |
2158 | if (prer == NULL) | |
2159 | rootlist = NULL; | |
2160 | else | |
2161 | prer->next = cr->next; | |
2162 | } | |
8b93c638 JM |
2163 | } |
2164 | ||
2165 | } | |
2166 | ||
581e13c1 | 2167 | /* Create and install a child of the parent of the given name. */ |
8b93c638 | 2168 | static struct varobj * |
fba45db2 | 2169 | create_child (struct varobj *parent, int index, char *name) |
b6313243 TT |
2170 | { |
2171 | return create_child_with_value (parent, index, name, | |
2172 | value_of_child (parent, index)); | |
2173 | } | |
2174 | ||
2175 | static struct varobj * | |
2176 | create_child_with_value (struct varobj *parent, int index, const char *name, | |
2177 | struct value *value) | |
8b93c638 JM |
2178 | { |
2179 | struct varobj *child; | |
2180 | char *childs_name; | |
2181 | ||
2182 | child = new_variable (); | |
2183 | ||
581e13c1 | 2184 | /* Name is allocated by name_of_child. */ |
b6313243 TT |
2185 | /* FIXME: xstrdup should not be here. */ |
2186 | child->name = xstrdup (name); | |
8b93c638 | 2187 | child->index = index; |
8b93c638 JM |
2188 | child->parent = parent; |
2189 | child->root = parent->root; | |
b435e160 | 2190 | childs_name = xstrprintf ("%s.%s", parent->obj_name, name); |
8b93c638 JM |
2191 | child->obj_name = childs_name; |
2192 | install_variable (child); | |
2193 | ||
acd65feb VP |
2194 | /* Compute the type of the child. Must do this before |
2195 | calling install_new_value. */ | |
2196 | if (value != NULL) | |
2197 | /* If the child had no evaluation errors, var->value | |
581e13c1 | 2198 | will be non-NULL and contain a valid type. */ |
acd65feb VP |
2199 | child->type = value_type (value); |
2200 | else | |
581e13c1 | 2201 | /* Otherwise, we must compute the type. */ |
acd65feb VP |
2202 | child->type = (*child->root->lang->type_of_child) (child->parent, |
2203 | child->index); | |
2204 | install_new_value (child, value, 1); | |
2205 | ||
8b93c638 JM |
2206 | return child; |
2207 | } | |
8b93c638 JM |
2208 | \f |
2209 | ||
2210 | /* | |
2211 | * Miscellaneous utility functions. | |
2212 | */ | |
2213 | ||
581e13c1 | 2214 | /* Allocate memory and initialize a new variable. */ |
8b93c638 JM |
2215 | static struct varobj * |
2216 | new_variable (void) | |
2217 | { | |
2218 | struct varobj *var; | |
2219 | ||
2220 | var = (struct varobj *) xmalloc (sizeof (struct varobj)); | |
2221 | var->name = NULL; | |
02142340 | 2222 | var->path_expr = NULL; |
8b93c638 JM |
2223 | var->obj_name = NULL; |
2224 | var->index = -1; | |
2225 | var->type = NULL; | |
2226 | var->value = NULL; | |
8b93c638 JM |
2227 | var->num_children = -1; |
2228 | var->parent = NULL; | |
2229 | var->children = NULL; | |
2230 | var->format = 0; | |
2231 | var->root = NULL; | |
fb9b6b35 | 2232 | var->updated = 0; |
85265413 | 2233 | var->print_value = NULL; |
25d5ea92 VP |
2234 | var->frozen = 0; |
2235 | var->not_fetched = 0; | |
b6313243 | 2236 | var->children_requested = 0; |
0cc7d26f TT |
2237 | var->from = -1; |
2238 | var->to = -1; | |
2239 | var->constructor = 0; | |
b6313243 | 2240 | var->pretty_printer = 0; |
0cc7d26f TT |
2241 | var->child_iter = 0; |
2242 | var->saved_item = 0; | |
8b93c638 JM |
2243 | |
2244 | return var; | |
2245 | } | |
2246 | ||
581e13c1 | 2247 | /* Allocate memory and initialize a new root variable. */ |
8b93c638 JM |
2248 | static struct varobj * |
2249 | new_root_variable (void) | |
2250 | { | |
2251 | struct varobj *var = new_variable (); | |
a109c7c1 | 2252 | |
3e43a32a | 2253 | var->root = (struct varobj_root *) xmalloc (sizeof (struct varobj_root)); |
8b93c638 JM |
2254 | var->root->lang = NULL; |
2255 | var->root->exp = NULL; | |
2256 | var->root->valid_block = NULL; | |
7a424e99 | 2257 | var->root->frame = null_frame_id; |
a5defcdc | 2258 | var->root->floating = 0; |
8b93c638 | 2259 | var->root->rootvar = NULL; |
8756216b | 2260 | var->root->is_valid = 1; |
8b93c638 JM |
2261 | |
2262 | return var; | |
2263 | } | |
2264 | ||
581e13c1 | 2265 | /* Free any allocated memory associated with VAR. */ |
8b93c638 | 2266 | static void |
fba45db2 | 2267 | free_variable (struct varobj *var) |
8b93c638 | 2268 | { |
d452c4bc UW |
2269 | #if HAVE_PYTHON |
2270 | if (var->pretty_printer) | |
2271 | { | |
2272 | struct cleanup *cleanup = varobj_ensure_python_env (var); | |
0cc7d26f TT |
2273 | Py_XDECREF (var->constructor); |
2274 | Py_XDECREF (var->pretty_printer); | |
2275 | Py_XDECREF (var->child_iter); | |
2276 | Py_XDECREF (var->saved_item); | |
d452c4bc UW |
2277 | do_cleanups (cleanup); |
2278 | } | |
2279 | #endif | |
2280 | ||
36746093 JK |
2281 | value_free (var->value); |
2282 | ||
581e13c1 | 2283 | /* Free the expression if this is a root variable. */ |
b2c2bd75 | 2284 | if (is_root_p (var)) |
8b93c638 | 2285 | { |
3038237c | 2286 | xfree (var->root->exp); |
8038e1e2 | 2287 | xfree (var->root); |
8b93c638 JM |
2288 | } |
2289 | ||
8038e1e2 AC |
2290 | xfree (var->name); |
2291 | xfree (var->obj_name); | |
85265413 | 2292 | xfree (var->print_value); |
02142340 | 2293 | xfree (var->path_expr); |
8038e1e2 | 2294 | xfree (var); |
8b93c638 JM |
2295 | } |
2296 | ||
74b7792f AC |
2297 | static void |
2298 | do_free_variable_cleanup (void *var) | |
2299 | { | |
2300 | free_variable (var); | |
2301 | } | |
2302 | ||
2303 | static struct cleanup * | |
2304 | make_cleanup_free_variable (struct varobj *var) | |
2305 | { | |
2306 | return make_cleanup (do_free_variable_cleanup, var); | |
2307 | } | |
2308 | ||
581e13c1 | 2309 | /* This returns the type of the variable. It also skips past typedefs |
6766a268 | 2310 | to return the real type of the variable. |
94b66fa7 KS |
2311 | |
2312 | NOTE: TYPE_TARGET_TYPE should NOT be used anywhere in this file | |
581e13c1 | 2313 | except within get_target_type and get_type. */ |
8b93c638 | 2314 | static struct type * |
fba45db2 | 2315 | get_type (struct varobj *var) |
8b93c638 JM |
2316 | { |
2317 | struct type *type; | |
8b93c638 | 2318 | |
a109c7c1 | 2319 | type = var->type; |
6766a268 DJ |
2320 | if (type != NULL) |
2321 | type = check_typedef (type); | |
8b93c638 JM |
2322 | |
2323 | return type; | |
2324 | } | |
2325 | ||
6e2a9270 VP |
2326 | /* Return the type of the value that's stored in VAR, |
2327 | or that would have being stored there if the | |
581e13c1 | 2328 | value were accessible. |
6e2a9270 VP |
2329 | |
2330 | This differs from VAR->type in that VAR->type is always | |
2331 | the true type of the expession in the source language. | |
2332 | The return value of this function is the type we're | |
2333 | actually storing in varobj, and using for displaying | |
2334 | the values and for comparing previous and new values. | |
2335 | ||
2336 | For example, top-level references are always stripped. */ | |
2337 | static struct type * | |
2338 | get_value_type (struct varobj *var) | |
2339 | { | |
2340 | struct type *type; | |
2341 | ||
2342 | if (var->value) | |
2343 | type = value_type (var->value); | |
2344 | else | |
2345 | type = var->type; | |
2346 | ||
2347 | type = check_typedef (type); | |
2348 | ||
2349 | if (TYPE_CODE (type) == TYPE_CODE_REF) | |
2350 | type = get_target_type (type); | |
2351 | ||
2352 | type = check_typedef (type); | |
2353 | ||
2354 | return type; | |
2355 | } | |
2356 | ||
8b93c638 | 2357 | /* This returns the target type (or NULL) of TYPE, also skipping |
94b66fa7 KS |
2358 | past typedefs, just like get_type (). |
2359 | ||
2360 | NOTE: TYPE_TARGET_TYPE should NOT be used anywhere in this file | |
581e13c1 | 2361 | except within get_target_type and get_type. */ |
8b93c638 | 2362 | static struct type * |
fba45db2 | 2363 | get_target_type (struct type *type) |
8b93c638 JM |
2364 | { |
2365 | if (type != NULL) | |
2366 | { | |
2367 | type = TYPE_TARGET_TYPE (type); | |
6766a268 DJ |
2368 | if (type != NULL) |
2369 | type = check_typedef (type); | |
8b93c638 JM |
2370 | } |
2371 | ||
2372 | return type; | |
2373 | } | |
2374 | ||
2375 | /* What is the default display for this variable? We assume that | |
581e13c1 | 2376 | everything is "natural". Any exceptions? */ |
8b93c638 | 2377 | static enum varobj_display_formats |
fba45db2 | 2378 | variable_default_display (struct varobj *var) |
8b93c638 JM |
2379 | { |
2380 | return FORMAT_NATURAL; | |
2381 | } | |
2382 | ||
581e13c1 | 2383 | /* FIXME: The following should be generic for any pointer. */ |
8b93c638 | 2384 | static void |
fba45db2 | 2385 | cppush (struct cpstack **pstack, char *name) |
8b93c638 JM |
2386 | { |
2387 | struct cpstack *s; | |
2388 | ||
2389 | s = (struct cpstack *) xmalloc (sizeof (struct cpstack)); | |
2390 | s->name = name; | |
2391 | s->next = *pstack; | |
2392 | *pstack = s; | |
2393 | } | |
2394 | ||
581e13c1 | 2395 | /* FIXME: The following should be generic for any pointer. */ |
8b93c638 | 2396 | static char * |
fba45db2 | 2397 | cppop (struct cpstack **pstack) |
8b93c638 JM |
2398 | { |
2399 | struct cpstack *s; | |
2400 | char *v; | |
2401 | ||
2402 | if ((*pstack)->name == NULL && (*pstack)->next == NULL) | |
2403 | return NULL; | |
2404 | ||
2405 | s = *pstack; | |
2406 | v = s->name; | |
2407 | *pstack = (*pstack)->next; | |
b8c9b27d | 2408 | xfree (s); |
8b93c638 JM |
2409 | |
2410 | return v; | |
2411 | } | |
2412 | \f | |
2413 | /* | |
2414 | * Language-dependencies | |
2415 | */ | |
2416 | ||
2417 | /* Common entry points */ | |
2418 | ||
581e13c1 | 2419 | /* Get the language of variable VAR. */ |
8b93c638 | 2420 | static enum varobj_languages |
fba45db2 | 2421 | variable_language (struct varobj *var) |
8b93c638 JM |
2422 | { |
2423 | enum varobj_languages lang; | |
2424 | ||
2425 | switch (var->root->exp->language_defn->la_language) | |
2426 | { | |
2427 | default: | |
2428 | case language_c: | |
2429 | lang = vlang_c; | |
2430 | break; | |
2431 | case language_cplus: | |
2432 | lang = vlang_cplus; | |
2433 | break; | |
2434 | case language_java: | |
2435 | lang = vlang_java; | |
2436 | break; | |
40591b7d JCD |
2437 | case language_ada: |
2438 | lang = vlang_ada; | |
2439 | break; | |
8b93c638 JM |
2440 | } |
2441 | ||
2442 | return lang; | |
2443 | } | |
2444 | ||
2445 | /* Return the number of children for a given variable. | |
2446 | The result of this function is defined by the language | |
581e13c1 | 2447 | implementation. The number of children returned by this function |
8b93c638 | 2448 | is the number of children that the user will see in the variable |
581e13c1 | 2449 | display. */ |
8b93c638 | 2450 | static int |
fba45db2 | 2451 | number_of_children (struct varobj *var) |
8b93c638 | 2452 | { |
82ae4854 | 2453 | return (*var->root->lang->number_of_children) (var); |
8b93c638 JM |
2454 | } |
2455 | ||
3e43a32a | 2456 | /* What is the expression for the root varobj VAR? Returns a malloc'd |
581e13c1 | 2457 | string. */ |
8b93c638 | 2458 | static char * |
fba45db2 | 2459 | name_of_variable (struct varobj *var) |
8b93c638 JM |
2460 | { |
2461 | return (*var->root->lang->name_of_variable) (var); | |
2462 | } | |
2463 | ||
3e43a32a | 2464 | /* What is the name of the INDEX'th child of VAR? Returns a malloc'd |
581e13c1 | 2465 | string. */ |
8b93c638 | 2466 | static char * |
fba45db2 | 2467 | name_of_child (struct varobj *var, int index) |
8b93c638 JM |
2468 | { |
2469 | return (*var->root->lang->name_of_child) (var, index); | |
2470 | } | |
2471 | ||
a5defcdc VP |
2472 | /* What is the ``struct value *'' of the root variable VAR? |
2473 | For floating variable object, evaluation can get us a value | |
2474 | of different type from what is stored in varobj already. In | |
2475 | that case: | |
2476 | - *type_changed will be set to 1 | |
2477 | - old varobj will be freed, and new one will be | |
2478 | created, with the same name. | |
2479 | - *var_handle will be set to the new varobj | |
2480 | Otherwise, *type_changed will be set to 0. */ | |
30b28db1 | 2481 | static struct value * |
fba45db2 | 2482 | value_of_root (struct varobj **var_handle, int *type_changed) |
8b93c638 | 2483 | { |
73a93a32 JI |
2484 | struct varobj *var; |
2485 | ||
2486 | if (var_handle == NULL) | |
2487 | return NULL; | |
2488 | ||
2489 | var = *var_handle; | |
2490 | ||
2491 | /* This should really be an exception, since this should | |
581e13c1 | 2492 | only get called with a root variable. */ |
73a93a32 | 2493 | |
b2c2bd75 | 2494 | if (!is_root_p (var)) |
73a93a32 JI |
2495 | return NULL; |
2496 | ||
a5defcdc | 2497 | if (var->root->floating) |
73a93a32 JI |
2498 | { |
2499 | struct varobj *tmp_var; | |
2500 | char *old_type, *new_type; | |
6225abfa | 2501 | |
73a93a32 JI |
2502 | tmp_var = varobj_create (NULL, var->name, (CORE_ADDR) 0, |
2503 | USE_SELECTED_FRAME); | |
2504 | if (tmp_var == NULL) | |
2505 | { | |
2506 | return NULL; | |
2507 | } | |
6225abfa | 2508 | old_type = varobj_get_type (var); |
73a93a32 | 2509 | new_type = varobj_get_type (tmp_var); |
72330bd6 | 2510 | if (strcmp (old_type, new_type) == 0) |
73a93a32 | 2511 | { |
fcacd99f VP |
2512 | /* The expression presently stored inside var->root->exp |
2513 | remembers the locations of local variables relatively to | |
2514 | the frame where the expression was created (in DWARF location | |
2515 | button, for example). Naturally, those locations are not | |
2516 | correct in other frames, so update the expression. */ | |
2517 | ||
2518 | struct expression *tmp_exp = var->root->exp; | |
a109c7c1 | 2519 | |
fcacd99f VP |
2520 | var->root->exp = tmp_var->root->exp; |
2521 | tmp_var->root->exp = tmp_exp; | |
2522 | ||
73a93a32 JI |
2523 | varobj_delete (tmp_var, NULL, 0); |
2524 | *type_changed = 0; | |
2525 | } | |
2526 | else | |
2527 | { | |
1b36a34b | 2528 | tmp_var->obj_name = xstrdup (var->obj_name); |
0cc7d26f TT |
2529 | tmp_var->from = var->from; |
2530 | tmp_var->to = var->to; | |
a5defcdc VP |
2531 | varobj_delete (var, NULL, 0); |
2532 | ||
73a93a32 JI |
2533 | install_variable (tmp_var); |
2534 | *var_handle = tmp_var; | |
705da579 | 2535 | var = *var_handle; |
73a93a32 JI |
2536 | *type_changed = 1; |
2537 | } | |
74dddad3 MS |
2538 | xfree (old_type); |
2539 | xfree (new_type); | |
73a93a32 JI |
2540 | } |
2541 | else | |
2542 | { | |
2543 | *type_changed = 0; | |
2544 | } | |
2545 | ||
2546 | return (*var->root->lang->value_of_root) (var_handle); | |
8b93c638 JM |
2547 | } |
2548 | ||
581e13c1 | 2549 | /* What is the ``struct value *'' for the INDEX'th child of PARENT? */ |
30b28db1 | 2550 | static struct value * |
fba45db2 | 2551 | value_of_child (struct varobj *parent, int index) |
8b93c638 | 2552 | { |
30b28db1 | 2553 | struct value *value; |
8b93c638 JM |
2554 | |
2555 | value = (*parent->root->lang->value_of_child) (parent, index); | |
2556 | ||
8b93c638 JM |
2557 | return value; |
2558 | } | |
2559 | ||
581e13c1 | 2560 | /* GDB already has a command called "value_of_variable". Sigh. */ |
8b93c638 | 2561 | static char * |
de051565 | 2562 | my_value_of_variable (struct varobj *var, enum varobj_display_formats format) |
8b93c638 | 2563 | { |
8756216b | 2564 | if (var->root->is_valid) |
0cc7d26f TT |
2565 | { |
2566 | if (var->pretty_printer) | |
2567 | return value_get_print_value (var->value, var->format, var); | |
2568 | return (*var->root->lang->value_of_variable) (var, format); | |
2569 | } | |
8756216b DP |
2570 | else |
2571 | return NULL; | |
8b93c638 JM |
2572 | } |
2573 | ||
85265413 | 2574 | static char * |
b6313243 | 2575 | value_get_print_value (struct value *value, enum varobj_display_formats format, |
d452c4bc | 2576 | struct varobj *var) |
85265413 | 2577 | { |
57e66780 | 2578 | struct ui_file *stb; |
621c8364 | 2579 | struct cleanup *old_chain; |
fbb8f299 | 2580 | gdb_byte *thevalue = NULL; |
79a45b7d | 2581 | struct value_print_options opts; |
be759fcf PM |
2582 | struct type *type = NULL; |
2583 | long len = 0; | |
2584 | char *encoding = NULL; | |
2585 | struct gdbarch *gdbarch = NULL; | |
3a182a69 JK |
2586 | /* Initialize it just to avoid a GCC false warning. */ |
2587 | CORE_ADDR str_addr = 0; | |
09ca9e2e | 2588 | int string_print = 0; |
57e66780 DJ |
2589 | |
2590 | if (value == NULL) | |
2591 | return NULL; | |
2592 | ||
621c8364 TT |
2593 | stb = mem_fileopen (); |
2594 | old_chain = make_cleanup_ui_file_delete (stb); | |
2595 | ||
be759fcf | 2596 | gdbarch = get_type_arch (value_type (value)); |
b6313243 TT |
2597 | #if HAVE_PYTHON |
2598 | { | |
d452c4bc UW |
2599 | PyObject *value_formatter = var->pretty_printer; |
2600 | ||
09ca9e2e TT |
2601 | varobj_ensure_python_env (var); |
2602 | ||
0cc7d26f | 2603 | if (value_formatter) |
b6313243 | 2604 | { |
0cc7d26f TT |
2605 | /* First check to see if we have any children at all. If so, |
2606 | we simply return {...}. */ | |
2607 | if (dynamic_varobj_has_child_method (var)) | |
621c8364 TT |
2608 | { |
2609 | do_cleanups (old_chain); | |
2610 | return xstrdup ("{...}"); | |
2611 | } | |
b6313243 | 2612 | |
0cc7d26f | 2613 | if (PyObject_HasAttr (value_formatter, gdbpy_to_string_cst)) |
b6313243 | 2614 | { |
0cc7d26f | 2615 | struct value *replacement; |
0cc7d26f TT |
2616 | PyObject *output = NULL; |
2617 | ||
0cc7d26f | 2618 | output = apply_varobj_pretty_printer (value_formatter, |
621c8364 TT |
2619 | &replacement, |
2620 | stb); | |
00bd41d6 PM |
2621 | |
2622 | /* If we have string like output ... */ | |
0cc7d26f TT |
2623 | if (output) |
2624 | { | |
09ca9e2e TT |
2625 | make_cleanup_py_decref (output); |
2626 | ||
00bd41d6 PM |
2627 | /* If this is a lazy string, extract it. For lazy |
2628 | strings we always print as a string, so set | |
2629 | string_print. */ | |
be759fcf | 2630 | if (gdbpy_is_lazy_string (output)) |
0cc7d26f | 2631 | { |
09ca9e2e TT |
2632 | gdbpy_extract_lazy_string (output, &str_addr, &type, |
2633 | &len, &encoding); | |
2634 | make_cleanup (free_current_contents, &encoding); | |
be759fcf PM |
2635 | string_print = 1; |
2636 | } | |
2637 | else | |
2638 | { | |
00bd41d6 PM |
2639 | /* If it is a regular (non-lazy) string, extract |
2640 | it and copy the contents into THEVALUE. If the | |
2641 | hint says to print it as a string, set | |
2642 | string_print. Otherwise just return the extracted | |
2643 | string as a value. */ | |
2644 | ||
be759fcf PM |
2645 | PyObject *py_str |
2646 | = python_string_to_target_python_string (output); | |
a109c7c1 | 2647 | |
be759fcf PM |
2648 | if (py_str) |
2649 | { | |
2650 | char *s = PyString_AsString (py_str); | |
00bd41d6 PM |
2651 | char *hint; |
2652 | ||
2653 | hint = gdbpy_get_display_hint (value_formatter); | |
2654 | if (hint) | |
2655 | { | |
2656 | if (!strcmp (hint, "string")) | |
2657 | string_print = 1; | |
2658 | xfree (hint); | |
2659 | } | |
a109c7c1 | 2660 | |
be759fcf PM |
2661 | len = PyString_Size (py_str); |
2662 | thevalue = xmemdup (s, len + 1, len + 1); | |
2663 | type = builtin_type (gdbarch)->builtin_char; | |
2664 | Py_DECREF (py_str); | |
09ca9e2e TT |
2665 | |
2666 | if (!string_print) | |
2667 | { | |
2668 | do_cleanups (old_chain); | |
2669 | return thevalue; | |
2670 | } | |
2671 | ||
2672 | make_cleanup (xfree, thevalue); | |
be759fcf | 2673 | } |
8dc78533 JK |
2674 | else |
2675 | gdbpy_print_stack (); | |
0cc7d26f | 2676 | } |
0cc7d26f | 2677 | } |
00bd41d6 PM |
2678 | /* If the printer returned a replacement value, set VALUE |
2679 | to REPLACEMENT. If there is not a replacement value, | |
2680 | just use the value passed to this function. */ | |
0cc7d26f TT |
2681 | if (replacement) |
2682 | value = replacement; | |
b6313243 | 2683 | } |
b6313243 | 2684 | } |
b6313243 TT |
2685 | } |
2686 | #endif | |
2687 | ||
79a45b7d TT |
2688 | get_formatted_print_options (&opts, format_code[(int) format]); |
2689 | opts.deref_ref = 0; | |
b6313243 | 2690 | opts.raw = 1; |
00bd41d6 PM |
2691 | |
2692 | /* If the THEVALUE has contents, it is a regular string. */ | |
b6313243 | 2693 | if (thevalue) |
09ca9e2e TT |
2694 | LA_PRINT_STRING (stb, type, thevalue, len, encoding, 0, &opts); |
2695 | else if (string_print) | |
00bd41d6 PM |
2696 | /* Otherwise, if string_print is set, and it is not a regular |
2697 | string, it is a lazy string. */ | |
09ca9e2e | 2698 | val_print_string (type, encoding, str_addr, len, stb, &opts); |
b6313243 | 2699 | else |
00bd41d6 | 2700 | /* All other cases. */ |
b6313243 | 2701 | common_val_print (value, stb, 0, &opts, current_language); |
00bd41d6 | 2702 | |
759ef836 | 2703 | thevalue = ui_file_xstrdup (stb, NULL); |
57e66780 | 2704 | |
85265413 NR |
2705 | do_cleanups (old_chain); |
2706 | return thevalue; | |
2707 | } | |
2708 | ||
340a7723 NR |
2709 | int |
2710 | varobj_editable_p (struct varobj *var) | |
2711 | { | |
2712 | struct type *type; | |
340a7723 NR |
2713 | |
2714 | if (!(var->root->is_valid && var->value && VALUE_LVAL (var->value))) | |
2715 | return 0; | |
2716 | ||
2717 | type = get_value_type (var); | |
2718 | ||
2719 | switch (TYPE_CODE (type)) | |
2720 | { | |
2721 | case TYPE_CODE_STRUCT: | |
2722 | case TYPE_CODE_UNION: | |
2723 | case TYPE_CODE_ARRAY: | |
2724 | case TYPE_CODE_FUNC: | |
2725 | case TYPE_CODE_METHOD: | |
2726 | return 0; | |
2727 | break; | |
2728 | ||
2729 | default: | |
2730 | return 1; | |
2731 | break; | |
2732 | } | |
2733 | } | |
2734 | ||
acd65feb VP |
2735 | /* Return non-zero if changes in value of VAR |
2736 | must be detected and reported by -var-update. | |
2737 | Return zero is -var-update should never report | |
2738 | changes of such values. This makes sense for structures | |
2739 | (since the changes in children values will be reported separately), | |
2740 | or for artifical objects (like 'public' pseudo-field in C++). | |
2741 | ||
2742 | Return value of 0 means that gdb need not call value_fetch_lazy | |
2743 | for the value of this variable object. */ | |
8b93c638 | 2744 | static int |
b2c2bd75 | 2745 | varobj_value_is_changeable_p (struct varobj *var) |
8b93c638 JM |
2746 | { |
2747 | int r; | |
2748 | struct type *type; | |
2749 | ||
2750 | if (CPLUS_FAKE_CHILD (var)) | |
2751 | return 0; | |
2752 | ||
6e2a9270 | 2753 | type = get_value_type (var); |
8b93c638 JM |
2754 | |
2755 | switch (TYPE_CODE (type)) | |
2756 | { | |
72330bd6 AC |
2757 | case TYPE_CODE_STRUCT: |
2758 | case TYPE_CODE_UNION: | |
2759 | case TYPE_CODE_ARRAY: | |
2760 | r = 0; | |
2761 | break; | |
8b93c638 | 2762 | |
72330bd6 AC |
2763 | default: |
2764 | r = 1; | |
8b93c638 JM |
2765 | } |
2766 | ||
2767 | return r; | |
2768 | } | |
2769 | ||
5a413362 VP |
2770 | /* Return 1 if that varobj is floating, that is is always evaluated in the |
2771 | selected frame, and not bound to thread/frame. Such variable objects | |
2772 | are created using '@' as frame specifier to -var-create. */ | |
2773 | int | |
2774 | varobj_floating_p (struct varobj *var) | |
2775 | { | |
2776 | return var->root->floating; | |
2777 | } | |
2778 | ||
2024f65a VP |
2779 | /* Given the value and the type of a variable object, |
2780 | adjust the value and type to those necessary | |
2781 | for getting children of the variable object. | |
2782 | This includes dereferencing top-level references | |
2783 | to all types and dereferencing pointers to | |
581e13c1 | 2784 | structures. |
2024f65a | 2785 | |
581e13c1 | 2786 | Both TYPE and *TYPE should be non-null. VALUE |
2024f65a VP |
2787 | can be null if we want to only translate type. |
2788 | *VALUE can be null as well -- if the parent | |
581e13c1 | 2789 | value is not known. |
02142340 VP |
2790 | |
2791 | If WAS_PTR is not NULL, set *WAS_PTR to 0 or 1 | |
b6313243 | 2792 | depending on whether pointer was dereferenced |
02142340 | 2793 | in this function. */ |
2024f65a VP |
2794 | static void |
2795 | adjust_value_for_child_access (struct value **value, | |
02142340 VP |
2796 | struct type **type, |
2797 | int *was_ptr) | |
2024f65a VP |
2798 | { |
2799 | gdb_assert (type && *type); | |
2800 | ||
02142340 VP |
2801 | if (was_ptr) |
2802 | *was_ptr = 0; | |
2803 | ||
2024f65a VP |
2804 | *type = check_typedef (*type); |
2805 | ||
2806 | /* The type of value stored in varobj, that is passed | |
2807 | to us, is already supposed to be | |
2808 | reference-stripped. */ | |
2809 | ||
2810 | gdb_assert (TYPE_CODE (*type) != TYPE_CODE_REF); | |
2811 | ||
2812 | /* Pointers to structures are treated just like | |
2813 | structures when accessing children. Don't | |
2814 | dererences pointers to other types. */ | |
2815 | if (TYPE_CODE (*type) == TYPE_CODE_PTR) | |
2816 | { | |
2817 | struct type *target_type = get_target_type (*type); | |
2818 | if (TYPE_CODE (target_type) == TYPE_CODE_STRUCT | |
2819 | || TYPE_CODE (target_type) == TYPE_CODE_UNION) | |
2820 | { | |
2821 | if (value && *value) | |
3f4178d6 | 2822 | { |
a109c7c1 MS |
2823 | int success = gdb_value_ind (*value, value); |
2824 | ||
3f4178d6 DJ |
2825 | if (!success) |
2826 | *value = NULL; | |
2827 | } | |
2024f65a | 2828 | *type = target_type; |
02142340 VP |
2829 | if (was_ptr) |
2830 | *was_ptr = 1; | |
2024f65a VP |
2831 | } |
2832 | } | |
2833 | ||
2834 | /* The 'get_target_type' function calls check_typedef on | |
2835 | result, so we can immediately check type code. No | |
2836 | need to call check_typedef here. */ | |
2837 | } | |
2838 | ||
8b93c638 JM |
2839 | /* C */ |
2840 | static int | |
fba45db2 | 2841 | c_number_of_children (struct varobj *var) |
8b93c638 | 2842 | { |
2024f65a VP |
2843 | struct type *type = get_value_type (var); |
2844 | int children = 0; | |
8b93c638 | 2845 | struct type *target; |
8b93c638 | 2846 | |
02142340 | 2847 | adjust_value_for_child_access (NULL, &type, NULL); |
8b93c638 | 2848 | target = get_target_type (type); |
8b93c638 JM |
2849 | |
2850 | switch (TYPE_CODE (type)) | |
2851 | { | |
2852 | case TYPE_CODE_ARRAY: | |
2853 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (target) > 0 | |
d78df370 | 2854 | && !TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)) |
8b93c638 JM |
2855 | children = TYPE_LENGTH (type) / TYPE_LENGTH (target); |
2856 | else | |
74a44383 DJ |
2857 | /* If we don't know how many elements there are, don't display |
2858 | any. */ | |
2859 | children = 0; | |
8b93c638 JM |
2860 | break; |
2861 | ||
2862 | case TYPE_CODE_STRUCT: | |
2863 | case TYPE_CODE_UNION: | |
2864 | children = TYPE_NFIELDS (type); | |
2865 | break; | |
2866 | ||
2867 | case TYPE_CODE_PTR: | |
581e13c1 | 2868 | /* The type here is a pointer to non-struct. Typically, pointers |
2024f65a VP |
2869 | have one child, except for function ptrs, which have no children, |
2870 | and except for void*, as we don't know what to show. | |
2871 | ||
0755e6c1 FN |
2872 | We can show char* so we allow it to be dereferenced. If you decide |
2873 | to test for it, please mind that a little magic is necessary to | |
2874 | properly identify it: char* has TYPE_CODE == TYPE_CODE_INT and | |
581e13c1 | 2875 | TYPE_NAME == "char". */ |
2024f65a VP |
2876 | if (TYPE_CODE (target) == TYPE_CODE_FUNC |
2877 | || TYPE_CODE (target) == TYPE_CODE_VOID) | |
2878 | children = 0; | |
2879 | else | |
2880 | children = 1; | |
8b93c638 JM |
2881 | break; |
2882 | ||
2883 | default: | |
581e13c1 | 2884 | /* Other types have no children. */ |
8b93c638 JM |
2885 | break; |
2886 | } | |
2887 | ||
2888 | return children; | |
2889 | } | |
2890 | ||
2891 | static char * | |
fba45db2 | 2892 | c_name_of_variable (struct varobj *parent) |
8b93c638 | 2893 | { |
1b36a34b | 2894 | return xstrdup (parent->name); |
8b93c638 JM |
2895 | } |
2896 | ||
bbec2603 VP |
2897 | /* Return the value of element TYPE_INDEX of a structure |
2898 | value VALUE. VALUE's type should be a structure, | |
581e13c1 | 2899 | or union, or a typedef to struct/union. |
bbec2603 VP |
2900 | |
2901 | Returns NULL if getting the value fails. Never throws. */ | |
2902 | static struct value * | |
2903 | value_struct_element_index (struct value *value, int type_index) | |
8b93c638 | 2904 | { |
bbec2603 VP |
2905 | struct value *result = NULL; |
2906 | volatile struct gdb_exception e; | |
bbec2603 | 2907 | struct type *type = value_type (value); |
a109c7c1 | 2908 | |
bbec2603 VP |
2909 | type = check_typedef (type); |
2910 | ||
2911 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT | |
2912 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
8b93c638 | 2913 | |
bbec2603 VP |
2914 | TRY_CATCH (e, RETURN_MASK_ERROR) |
2915 | { | |
d6a843b5 | 2916 | if (field_is_static (&TYPE_FIELD (type, type_index))) |
bbec2603 VP |
2917 | result = value_static_field (type, type_index); |
2918 | else | |
2919 | result = value_primitive_field (value, 0, type_index, type); | |
2920 | } | |
2921 | if (e.reason < 0) | |
2922 | { | |
2923 | return NULL; | |
2924 | } | |
2925 | else | |
2926 | { | |
2927 | return result; | |
2928 | } | |
2929 | } | |
2930 | ||
2931 | /* Obtain the information about child INDEX of the variable | |
581e13c1 | 2932 | object PARENT. |
bbec2603 VP |
2933 | If CNAME is not null, sets *CNAME to the name of the child relative |
2934 | to the parent. | |
2935 | If CVALUE is not null, sets *CVALUE to the value of the child. | |
2936 | If CTYPE is not null, sets *CTYPE to the type of the child. | |
2937 | ||
2938 | If any of CNAME, CVALUE, or CTYPE is not null, but the corresponding | |
2939 | information cannot be determined, set *CNAME, *CVALUE, or *CTYPE | |
2940 | to NULL. */ | |
2941 | static void | |
2942 | c_describe_child (struct varobj *parent, int index, | |
02142340 VP |
2943 | char **cname, struct value **cvalue, struct type **ctype, |
2944 | char **cfull_expression) | |
bbec2603 VP |
2945 | { |
2946 | struct value *value = parent->value; | |
2024f65a | 2947 | struct type *type = get_value_type (parent); |
02142340 VP |
2948 | char *parent_expression = NULL; |
2949 | int was_ptr; | |
bbec2603 VP |
2950 | |
2951 | if (cname) | |
2952 | *cname = NULL; | |
2953 | if (cvalue) | |
2954 | *cvalue = NULL; | |
2955 | if (ctype) | |
2956 | *ctype = NULL; | |
02142340 VP |
2957 | if (cfull_expression) |
2958 | { | |
2959 | *cfull_expression = NULL; | |
2960 | parent_expression = varobj_get_path_expr (parent); | |
2961 | } | |
2962 | adjust_value_for_child_access (&value, &type, &was_ptr); | |
bbec2603 | 2963 | |
8b93c638 JM |
2964 | switch (TYPE_CODE (type)) |
2965 | { | |
2966 | case TYPE_CODE_ARRAY: | |
bbec2603 | 2967 | if (cname) |
3e43a32a MS |
2968 | *cname |
2969 | = xstrdup (int_string (index | |
2970 | + TYPE_LOW_BOUND (TYPE_INDEX_TYPE (type)), | |
2971 | 10, 1, 0, 0)); | |
bbec2603 VP |
2972 | |
2973 | if (cvalue && value) | |
2974 | { | |
2975 | int real_index = index + TYPE_LOW_BOUND (TYPE_INDEX_TYPE (type)); | |
a109c7c1 | 2976 | |
2497b498 | 2977 | gdb_value_subscript (value, real_index, cvalue); |
bbec2603 VP |
2978 | } |
2979 | ||
2980 | if (ctype) | |
2981 | *ctype = get_target_type (type); | |
2982 | ||
02142340 | 2983 | if (cfull_expression) |
43bbcdc2 PH |
2984 | *cfull_expression = |
2985 | xstrprintf ("(%s)[%s]", parent_expression, | |
2986 | int_string (index | |
2987 | + TYPE_LOW_BOUND (TYPE_INDEX_TYPE (type)), | |
2988 | 10, 1, 0, 0)); | |
02142340 VP |
2989 | |
2990 | ||
8b93c638 JM |
2991 | break; |
2992 | ||
2993 | case TYPE_CODE_STRUCT: | |
2994 | case TYPE_CODE_UNION: | |
bbec2603 | 2995 | if (cname) |
1b36a34b | 2996 | *cname = xstrdup (TYPE_FIELD_NAME (type, index)); |
bbec2603 VP |
2997 | |
2998 | if (cvalue && value) | |
2999 | { | |
3000 | /* For C, varobj index is the same as type index. */ | |
3001 | *cvalue = value_struct_element_index (value, index); | |
3002 | } | |
3003 | ||
3004 | if (ctype) | |
3005 | *ctype = TYPE_FIELD_TYPE (type, index); | |
3006 | ||
02142340 VP |
3007 | if (cfull_expression) |
3008 | { | |
3009 | char *join = was_ptr ? "->" : "."; | |
a109c7c1 | 3010 | |
02142340 VP |
3011 | *cfull_expression = xstrprintf ("(%s)%s%s", parent_expression, join, |
3012 | TYPE_FIELD_NAME (type, index)); | |
3013 | } | |
3014 | ||
8b93c638 JM |
3015 | break; |
3016 | ||
3017 | case TYPE_CODE_PTR: | |
bbec2603 VP |
3018 | if (cname) |
3019 | *cname = xstrprintf ("*%s", parent->name); | |
8b93c638 | 3020 | |
bbec2603 | 3021 | if (cvalue && value) |
3f4178d6 DJ |
3022 | { |
3023 | int success = gdb_value_ind (value, cvalue); | |
a109c7c1 | 3024 | |
3f4178d6 DJ |
3025 | if (!success) |
3026 | *cvalue = NULL; | |
3027 | } | |
bbec2603 | 3028 | |
2024f65a VP |
3029 | /* Don't use get_target_type because it calls |
3030 | check_typedef and here, we want to show the true | |
3031 | declared type of the variable. */ | |
bbec2603 | 3032 | if (ctype) |
2024f65a | 3033 | *ctype = TYPE_TARGET_TYPE (type); |
02142340 VP |
3034 | |
3035 | if (cfull_expression) | |
3036 | *cfull_expression = xstrprintf ("*(%s)", parent_expression); | |
bbec2603 | 3037 | |
8b93c638 JM |
3038 | break; |
3039 | ||
3040 | default: | |
581e13c1 | 3041 | /* This should not happen. */ |
bbec2603 VP |
3042 | if (cname) |
3043 | *cname = xstrdup ("???"); | |
02142340 VP |
3044 | if (cfull_expression) |
3045 | *cfull_expression = xstrdup ("???"); | |
581e13c1 | 3046 | /* Don't set value and type, we don't know then. */ |
8b93c638 | 3047 | } |
bbec2603 | 3048 | } |
8b93c638 | 3049 | |
bbec2603 VP |
3050 | static char * |
3051 | c_name_of_child (struct varobj *parent, int index) | |
3052 | { | |
3053 | char *name; | |
a109c7c1 | 3054 | |
02142340 | 3055 | c_describe_child (parent, index, &name, NULL, NULL, NULL); |
8b93c638 JM |
3056 | return name; |
3057 | } | |
3058 | ||
02142340 VP |
3059 | static char * |
3060 | c_path_expr_of_child (struct varobj *child) | |
3061 | { | |
3062 | c_describe_child (child->parent, child->index, NULL, NULL, NULL, | |
3063 | &child->path_expr); | |
3064 | return child->path_expr; | |
3065 | } | |
3066 | ||
c5b48eac VP |
3067 | /* If frame associated with VAR can be found, switch |
3068 | to it and return 1. Otherwise, return 0. */ | |
3069 | static int | |
3070 | check_scope (struct varobj *var) | |
3071 | { | |
3072 | struct frame_info *fi; | |
3073 | int scope; | |
3074 | ||
3075 | fi = frame_find_by_id (var->root->frame); | |
3076 | scope = fi != NULL; | |
3077 | ||
3078 | if (fi) | |
3079 | { | |
3080 | CORE_ADDR pc = get_frame_pc (fi); | |
a109c7c1 | 3081 | |
c5b48eac VP |
3082 | if (pc < BLOCK_START (var->root->valid_block) || |
3083 | pc >= BLOCK_END (var->root->valid_block)) | |
3084 | scope = 0; | |
3085 | else | |
3086 | select_frame (fi); | |
3087 | } | |
3088 | return scope; | |
3089 | } | |
3090 | ||
30b28db1 | 3091 | static struct value * |
fba45db2 | 3092 | c_value_of_root (struct varobj **var_handle) |
8b93c638 | 3093 | { |
5e572bb4 | 3094 | struct value *new_val = NULL; |
73a93a32 | 3095 | struct varobj *var = *var_handle; |
c5b48eac | 3096 | int within_scope = 0; |
6208b47d VP |
3097 | struct cleanup *back_to; |
3098 | ||
581e13c1 | 3099 | /* Only root variables can be updated... */ |
b2c2bd75 | 3100 | if (!is_root_p (var)) |
581e13c1 | 3101 | /* Not a root var. */ |
73a93a32 JI |
3102 | return NULL; |
3103 | ||
4f8d22e3 | 3104 | back_to = make_cleanup_restore_current_thread (); |
72330bd6 | 3105 | |
581e13c1 | 3106 | /* Determine whether the variable is still around. */ |
a5defcdc | 3107 | if (var->root->valid_block == NULL || var->root->floating) |
8b93c638 | 3108 | within_scope = 1; |
c5b48eac VP |
3109 | else if (var->root->thread_id == 0) |
3110 | { | |
3111 | /* The program was single-threaded when the variable object was | |
3112 | created. Technically, it's possible that the program became | |
3113 | multi-threaded since then, but we don't support such | |
3114 | scenario yet. */ | |
3115 | within_scope = check_scope (var); | |
3116 | } | |
8b93c638 JM |
3117 | else |
3118 | { | |
c5b48eac VP |
3119 | ptid_t ptid = thread_id_to_pid (var->root->thread_id); |
3120 | if (in_thread_list (ptid)) | |
d2353924 | 3121 | { |
c5b48eac VP |
3122 | switch_to_thread (ptid); |
3123 | within_scope = check_scope (var); | |
3124 | } | |
8b93c638 | 3125 | } |
72330bd6 | 3126 | |
8b93c638 JM |
3127 | if (within_scope) |
3128 | { | |
73a93a32 | 3129 | /* We need to catch errors here, because if evaluate |
85d93f1d VP |
3130 | expression fails we want to just return NULL. */ |
3131 | gdb_evaluate_expression (var->root->exp, &new_val); | |
8b93c638 JM |
3132 | return new_val; |
3133 | } | |
3134 | ||
6208b47d VP |
3135 | do_cleanups (back_to); |
3136 | ||
8b93c638 JM |
3137 | return NULL; |
3138 | } | |
3139 | ||
30b28db1 | 3140 | static struct value * |
fba45db2 | 3141 | c_value_of_child (struct varobj *parent, int index) |
8b93c638 | 3142 | { |
bbec2603 | 3143 | struct value *value = NULL; |
8b93c638 | 3144 | |
a109c7c1 | 3145 | c_describe_child (parent, index, NULL, &value, NULL, NULL); |
8b93c638 JM |
3146 | return value; |
3147 | } | |
3148 | ||
3149 | static struct type * | |
fba45db2 | 3150 | c_type_of_child (struct varobj *parent, int index) |
8b93c638 | 3151 | { |
bbec2603 | 3152 | struct type *type = NULL; |
a109c7c1 | 3153 | |
02142340 | 3154 | c_describe_child (parent, index, NULL, NULL, &type, NULL); |
8b93c638 JM |
3155 | return type; |
3156 | } | |
3157 | ||
8b93c638 | 3158 | static char * |
de051565 | 3159 | c_value_of_variable (struct varobj *var, enum varobj_display_formats format) |
8b93c638 | 3160 | { |
14b3d9c9 JB |
3161 | /* BOGUS: if val_print sees a struct/class, or a reference to one, |
3162 | it will print out its children instead of "{...}". So we need to | |
3163 | catch that case explicitly. */ | |
3164 | struct type *type = get_type (var); | |
e64d9b3d | 3165 | |
b6313243 TT |
3166 | /* If we have a custom formatter, return whatever string it has |
3167 | produced. */ | |
3168 | if (var->pretty_printer && var->print_value) | |
3169 | return xstrdup (var->print_value); | |
3170 | ||
581e13c1 | 3171 | /* Strip top-level references. */ |
14b3d9c9 JB |
3172 | while (TYPE_CODE (type) == TYPE_CODE_REF) |
3173 | type = check_typedef (TYPE_TARGET_TYPE (type)); | |
3174 | ||
3175 | switch (TYPE_CODE (type)) | |
8b93c638 JM |
3176 | { |
3177 | case TYPE_CODE_STRUCT: | |
3178 | case TYPE_CODE_UNION: | |
3179 | return xstrdup ("{...}"); | |
3180 | /* break; */ | |
3181 | ||
3182 | case TYPE_CODE_ARRAY: | |
3183 | { | |
e64d9b3d | 3184 | char *number; |
a109c7c1 | 3185 | |
b435e160 | 3186 | number = xstrprintf ("[%d]", var->num_children); |
e64d9b3d | 3187 | return (number); |
8b93c638 JM |
3188 | } |
3189 | /* break; */ | |
3190 | ||
3191 | default: | |
3192 | { | |
575bbeb6 KS |
3193 | if (var->value == NULL) |
3194 | { | |
3195 | /* This can happen if we attempt to get the value of a struct | |
581e13c1 MS |
3196 | member when the parent is an invalid pointer. This is an |
3197 | error condition, so we should tell the caller. */ | |
575bbeb6 KS |
3198 | return NULL; |
3199 | } | |
3200 | else | |
3201 | { | |
25d5ea92 VP |
3202 | if (var->not_fetched && value_lazy (var->value)) |
3203 | /* Frozen variable and no value yet. We don't | |
3204 | implicitly fetch the value. MI response will | |
3205 | use empty string for the value, which is OK. */ | |
3206 | return NULL; | |
3207 | ||
b2c2bd75 | 3208 | gdb_assert (varobj_value_is_changeable_p (var)); |
acd65feb | 3209 | gdb_assert (!value_lazy (var->value)); |
de051565 MK |
3210 | |
3211 | /* If the specified format is the current one, | |
581e13c1 | 3212 | we can reuse print_value. */ |
de051565 MK |
3213 | if (format == var->format) |
3214 | return xstrdup (var->print_value); | |
3215 | else | |
d452c4bc | 3216 | return value_get_print_value (var->value, format, var); |
85265413 | 3217 | } |
e64d9b3d | 3218 | } |
8b93c638 JM |
3219 | } |
3220 | } | |
3221 | \f | |
3222 | ||
3223 | /* C++ */ | |
3224 | ||
3225 | static int | |
fba45db2 | 3226 | cplus_number_of_children (struct varobj *var) |
8b93c638 JM |
3227 | { |
3228 | struct type *type; | |
3229 | int children, dont_know; | |
3230 | ||
3231 | dont_know = 1; | |
3232 | children = 0; | |
3233 | ||
3234 | if (!CPLUS_FAKE_CHILD (var)) | |
3235 | { | |
2024f65a | 3236 | type = get_value_type (var); |
02142340 | 3237 | adjust_value_for_child_access (NULL, &type, NULL); |
8b93c638 JM |
3238 | |
3239 | if (((TYPE_CODE (type)) == TYPE_CODE_STRUCT) || | |
72330bd6 | 3240 | ((TYPE_CODE (type)) == TYPE_CODE_UNION)) |
8b93c638 JM |
3241 | { |
3242 | int kids[3]; | |
3243 | ||
3244 | cplus_class_num_children (type, kids); | |
3245 | if (kids[v_public] != 0) | |
3246 | children++; | |
3247 | if (kids[v_private] != 0) | |
3248 | children++; | |
3249 | if (kids[v_protected] != 0) | |
3250 | children++; | |
3251 | ||
581e13c1 | 3252 | /* Add any baseclasses. */ |
8b93c638 JM |
3253 | children += TYPE_N_BASECLASSES (type); |
3254 | dont_know = 0; | |
3255 | ||
581e13c1 | 3256 | /* FIXME: save children in var. */ |
8b93c638 JM |
3257 | } |
3258 | } | |
3259 | else | |
3260 | { | |
3261 | int kids[3]; | |
3262 | ||
2024f65a | 3263 | type = get_value_type (var->parent); |
02142340 | 3264 | adjust_value_for_child_access (NULL, &type, NULL); |
8b93c638 JM |
3265 | |
3266 | cplus_class_num_children (type, kids); | |
6e382aa3 | 3267 | if (strcmp (var->name, "public") == 0) |
8b93c638 | 3268 | children = kids[v_public]; |
6e382aa3 | 3269 | else if (strcmp (var->name, "private") == 0) |
8b93c638 JM |
3270 | children = kids[v_private]; |
3271 | else | |
3272 | children = kids[v_protected]; | |
3273 | dont_know = 0; | |
3274 | } | |
3275 | ||
3276 | if (dont_know) | |
3277 | children = c_number_of_children (var); | |
3278 | ||
3279 | return children; | |
3280 | } | |
3281 | ||
3282 | /* Compute # of public, private, and protected variables in this class. | |
3283 | That means we need to descend into all baseclasses and find out | |
581e13c1 | 3284 | how many are there, too. */ |
8b93c638 | 3285 | static void |
1669605f | 3286 | cplus_class_num_children (struct type *type, int children[3]) |
8b93c638 | 3287 | { |
d48cc9dd DJ |
3288 | int i, vptr_fieldno; |
3289 | struct type *basetype = NULL; | |
8b93c638 JM |
3290 | |
3291 | children[v_public] = 0; | |
3292 | children[v_private] = 0; | |
3293 | children[v_protected] = 0; | |
3294 | ||
d48cc9dd | 3295 | vptr_fieldno = get_vptr_fieldno (type, &basetype); |
8b93c638 JM |
3296 | for (i = TYPE_N_BASECLASSES (type); i < TYPE_NFIELDS (type); i++) |
3297 | { | |
d48cc9dd DJ |
3298 | /* If we have a virtual table pointer, omit it. Even if virtual |
3299 | table pointers are not specifically marked in the debug info, | |
3300 | they should be artificial. */ | |
3301 | if ((type == basetype && i == vptr_fieldno) | |
3302 | || TYPE_FIELD_ARTIFICIAL (type, i)) | |
8b93c638 JM |
3303 | continue; |
3304 | ||
3305 | if (TYPE_FIELD_PROTECTED (type, i)) | |
3306 | children[v_protected]++; | |
3307 | else if (TYPE_FIELD_PRIVATE (type, i)) | |
3308 | children[v_private]++; | |
3309 | else | |
3310 | children[v_public]++; | |
3311 | } | |
3312 | } | |
3313 | ||
3314 | static char * | |
fba45db2 | 3315 | cplus_name_of_variable (struct varobj *parent) |
8b93c638 JM |
3316 | { |
3317 | return c_name_of_variable (parent); | |
3318 | } | |
3319 | ||
2024f65a VP |
3320 | enum accessibility { private_field, protected_field, public_field }; |
3321 | ||
3322 | /* Check if field INDEX of TYPE has the specified accessibility. | |
3323 | Return 0 if so and 1 otherwise. */ | |
3324 | static int | |
3325 | match_accessibility (struct type *type, int index, enum accessibility acc) | |
8b93c638 | 3326 | { |
2024f65a VP |
3327 | if (acc == private_field && TYPE_FIELD_PRIVATE (type, index)) |
3328 | return 1; | |
3329 | else if (acc == protected_field && TYPE_FIELD_PROTECTED (type, index)) | |
3330 | return 1; | |
3331 | else if (acc == public_field && !TYPE_FIELD_PRIVATE (type, index) | |
3332 | && !TYPE_FIELD_PROTECTED (type, index)) | |
3333 | return 1; | |
3334 | else | |
3335 | return 0; | |
3336 | } | |
3337 | ||
3338 | static void | |
3339 | cplus_describe_child (struct varobj *parent, int index, | |
02142340 VP |
3340 | char **cname, struct value **cvalue, struct type **ctype, |
3341 | char **cfull_expression) | |
2024f65a | 3342 | { |
2024f65a | 3343 | struct value *value; |
8b93c638 | 3344 | struct type *type; |
02142340 VP |
3345 | int was_ptr; |
3346 | char *parent_expression = NULL; | |
8b93c638 | 3347 | |
2024f65a VP |
3348 | if (cname) |
3349 | *cname = NULL; | |
3350 | if (cvalue) | |
3351 | *cvalue = NULL; | |
3352 | if (ctype) | |
3353 | *ctype = NULL; | |
02142340 VP |
3354 | if (cfull_expression) |
3355 | *cfull_expression = NULL; | |
2024f65a | 3356 | |
8b93c638 JM |
3357 | if (CPLUS_FAKE_CHILD (parent)) |
3358 | { | |
2024f65a VP |
3359 | value = parent->parent->value; |
3360 | type = get_value_type (parent->parent); | |
02142340 VP |
3361 | if (cfull_expression) |
3362 | parent_expression = varobj_get_path_expr (parent->parent); | |
8b93c638 JM |
3363 | } |
3364 | else | |
2024f65a VP |
3365 | { |
3366 | value = parent->value; | |
3367 | type = get_value_type (parent); | |
02142340 VP |
3368 | if (cfull_expression) |
3369 | parent_expression = varobj_get_path_expr (parent); | |
2024f65a | 3370 | } |
8b93c638 | 3371 | |
02142340 | 3372 | adjust_value_for_child_access (&value, &type, &was_ptr); |
2024f65a VP |
3373 | |
3374 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT | |
3f4178d6 | 3375 | || TYPE_CODE (type) == TYPE_CODE_UNION) |
8b93c638 | 3376 | { |
02142340 | 3377 | char *join = was_ptr ? "->" : "."; |
a109c7c1 | 3378 | |
8b93c638 JM |
3379 | if (CPLUS_FAKE_CHILD (parent)) |
3380 | { | |
6e382aa3 JJ |
3381 | /* The fields of the class type are ordered as they |
3382 | appear in the class. We are given an index for a | |
3383 | particular access control type ("public","protected", | |
3384 | or "private"). We must skip over fields that don't | |
3385 | have the access control we are looking for to properly | |
581e13c1 | 3386 | find the indexed field. */ |
6e382aa3 | 3387 | int type_index = TYPE_N_BASECLASSES (type); |
2024f65a | 3388 | enum accessibility acc = public_field; |
d48cc9dd DJ |
3389 | int vptr_fieldno; |
3390 | struct type *basetype = NULL; | |
3391 | ||
3392 | vptr_fieldno = get_vptr_fieldno (type, &basetype); | |
6e382aa3 | 3393 | if (strcmp (parent->name, "private") == 0) |
2024f65a | 3394 | acc = private_field; |
6e382aa3 | 3395 | else if (strcmp (parent->name, "protected") == 0) |
2024f65a VP |
3396 | acc = protected_field; |
3397 | ||
3398 | while (index >= 0) | |
6e382aa3 | 3399 | { |
d48cc9dd DJ |
3400 | if ((type == basetype && type_index == vptr_fieldno) |
3401 | || TYPE_FIELD_ARTIFICIAL (type, type_index)) | |
2024f65a VP |
3402 | ; /* ignore vptr */ |
3403 | else if (match_accessibility (type, type_index, acc)) | |
6e382aa3 JJ |
3404 | --index; |
3405 | ++type_index; | |
6e382aa3 | 3406 | } |
2024f65a VP |
3407 | --type_index; |
3408 | ||
3409 | if (cname) | |
3410 | *cname = xstrdup (TYPE_FIELD_NAME (type, type_index)); | |
3411 | ||
3412 | if (cvalue && value) | |
3413 | *cvalue = value_struct_element_index (value, type_index); | |
3414 | ||
3415 | if (ctype) | |
3416 | *ctype = TYPE_FIELD_TYPE (type, type_index); | |
02142340 VP |
3417 | |
3418 | if (cfull_expression) | |
3e43a32a MS |
3419 | *cfull_expression |
3420 | = xstrprintf ("((%s)%s%s)", parent_expression, | |
3421 | join, | |
3422 | TYPE_FIELD_NAME (type, type_index)); | |
2024f65a VP |
3423 | } |
3424 | else if (index < TYPE_N_BASECLASSES (type)) | |
3425 | { | |
3426 | /* This is a baseclass. */ | |
3427 | if (cname) | |
3428 | *cname = xstrdup (TYPE_FIELD_NAME (type, index)); | |
3429 | ||
3430 | if (cvalue && value) | |
0cc7d26f | 3431 | *cvalue = value_cast (TYPE_FIELD_TYPE (type, index), value); |
6e382aa3 | 3432 | |
2024f65a VP |
3433 | if (ctype) |
3434 | { | |
3435 | *ctype = TYPE_FIELD_TYPE (type, index); | |
3436 | } | |
02142340 VP |
3437 | |
3438 | if (cfull_expression) | |
3439 | { | |
3440 | char *ptr = was_ptr ? "*" : ""; | |
a109c7c1 | 3441 | |
581e13c1 | 3442 | /* Cast the parent to the base' type. Note that in gdb, |
02142340 VP |
3443 | expression like |
3444 | (Base1)d | |
3445 | will create an lvalue, for all appearences, so we don't | |
3446 | need to use more fancy: | |
3447 | *(Base1*)(&d) | |
0d932b2f MK |
3448 | construct. |
3449 | ||
3450 | When we are in the scope of the base class or of one | |
3451 | of its children, the type field name will be interpreted | |
3452 | as a constructor, if it exists. Therefore, we must | |
3453 | indicate that the name is a class name by using the | |
3454 | 'class' keyword. See PR mi/11912 */ | |
3455 | *cfull_expression = xstrprintf ("(%s(class %s%s) %s)", | |
02142340 VP |
3456 | ptr, |
3457 | TYPE_FIELD_NAME (type, index), | |
3458 | ptr, | |
3459 | parent_expression); | |
3460 | } | |
8b93c638 | 3461 | } |
8b93c638 JM |
3462 | else |
3463 | { | |
348144ba | 3464 | char *access = NULL; |
6e382aa3 | 3465 | int children[3]; |
a109c7c1 | 3466 | |
2024f65a | 3467 | cplus_class_num_children (type, children); |
6e382aa3 | 3468 | |
8b93c638 | 3469 | /* Everything beyond the baseclasses can |
6e382aa3 JJ |
3470 | only be "public", "private", or "protected" |
3471 | ||
3472 | The special "fake" children are always output by varobj in | |
581e13c1 | 3473 | this order. So if INDEX == 2, it MUST be "protected". */ |
8b93c638 JM |
3474 | index -= TYPE_N_BASECLASSES (type); |
3475 | switch (index) | |
3476 | { | |
3477 | case 0: | |
6e382aa3 | 3478 | if (children[v_public] > 0) |
2024f65a | 3479 | access = "public"; |
6e382aa3 | 3480 | else if (children[v_private] > 0) |
2024f65a | 3481 | access = "private"; |
6e382aa3 | 3482 | else |
2024f65a | 3483 | access = "protected"; |
6e382aa3 | 3484 | break; |
8b93c638 | 3485 | case 1: |
6e382aa3 | 3486 | if (children[v_public] > 0) |
8b93c638 | 3487 | { |
6e382aa3 | 3488 | if (children[v_private] > 0) |
2024f65a | 3489 | access = "private"; |
6e382aa3 | 3490 | else |
2024f65a | 3491 | access = "protected"; |
8b93c638 | 3492 | } |
6e382aa3 | 3493 | else if (children[v_private] > 0) |
2024f65a | 3494 | access = "protected"; |
6e382aa3 | 3495 | break; |
8b93c638 | 3496 | case 2: |
581e13c1 | 3497 | /* Must be protected. */ |
2024f65a | 3498 | access = "protected"; |
6e382aa3 | 3499 | break; |
8b93c638 | 3500 | default: |
581e13c1 | 3501 | /* error! */ |
8b93c638 JM |
3502 | break; |
3503 | } | |
348144ba MS |
3504 | |
3505 | gdb_assert (access); | |
2024f65a VP |
3506 | if (cname) |
3507 | *cname = xstrdup (access); | |
8b93c638 | 3508 | |
02142340 | 3509 | /* Value and type and full expression are null here. */ |
2024f65a | 3510 | } |
8b93c638 | 3511 | } |
8b93c638 JM |
3512 | else |
3513 | { | |
02142340 | 3514 | c_describe_child (parent, index, cname, cvalue, ctype, cfull_expression); |
2024f65a VP |
3515 | } |
3516 | } | |
8b93c638 | 3517 | |
2024f65a VP |
3518 | static char * |
3519 | cplus_name_of_child (struct varobj *parent, int index) | |
3520 | { | |
3521 | char *name = NULL; | |
a109c7c1 | 3522 | |
02142340 | 3523 | cplus_describe_child (parent, index, &name, NULL, NULL, NULL); |
8b93c638 JM |
3524 | return name; |
3525 | } | |
3526 | ||
02142340 VP |
3527 | static char * |
3528 | cplus_path_expr_of_child (struct varobj *child) | |
3529 | { | |
3530 | cplus_describe_child (child->parent, child->index, NULL, NULL, NULL, | |
3531 | &child->path_expr); | |
3532 | return child->path_expr; | |
3533 | } | |
3534 | ||
30b28db1 | 3535 | static struct value * |
fba45db2 | 3536 | cplus_value_of_root (struct varobj **var_handle) |
8b93c638 | 3537 | { |
73a93a32 | 3538 | return c_value_of_root (var_handle); |
8b93c638 JM |
3539 | } |
3540 | ||
30b28db1 | 3541 | static struct value * |
fba45db2 | 3542 | cplus_value_of_child (struct varobj *parent, int index) |
8b93c638 | 3543 | { |
2024f65a | 3544 | struct value *value = NULL; |
a109c7c1 | 3545 | |
02142340 | 3546 | cplus_describe_child (parent, index, NULL, &value, NULL, NULL); |
8b93c638 JM |
3547 | return value; |
3548 | } | |
3549 | ||
3550 | static struct type * | |
fba45db2 | 3551 | cplus_type_of_child (struct varobj *parent, int index) |
8b93c638 | 3552 | { |
2024f65a | 3553 | struct type *type = NULL; |
a109c7c1 | 3554 | |
02142340 | 3555 | cplus_describe_child (parent, index, NULL, NULL, &type, NULL); |
8b93c638 JM |
3556 | return type; |
3557 | } | |
3558 | ||
8b93c638 | 3559 | static char * |
a109c7c1 MS |
3560 | cplus_value_of_variable (struct varobj *var, |
3561 | enum varobj_display_formats format) | |
8b93c638 JM |
3562 | { |
3563 | ||
3564 | /* If we have one of our special types, don't print out | |
581e13c1 | 3565 | any value. */ |
8b93c638 JM |
3566 | if (CPLUS_FAKE_CHILD (var)) |
3567 | return xstrdup (""); | |
3568 | ||
de051565 | 3569 | return c_value_of_variable (var, format); |
8b93c638 JM |
3570 | } |
3571 | \f | |
3572 | /* Java */ | |
3573 | ||
3574 | static int | |
fba45db2 | 3575 | java_number_of_children (struct varobj *var) |
8b93c638 JM |
3576 | { |
3577 | return cplus_number_of_children (var); | |
3578 | } | |
3579 | ||
3580 | static char * | |
fba45db2 | 3581 | java_name_of_variable (struct varobj *parent) |
8b93c638 JM |
3582 | { |
3583 | char *p, *name; | |
3584 | ||
3585 | name = cplus_name_of_variable (parent); | |
3586 | /* If the name has "-" in it, it is because we | |
581e13c1 | 3587 | needed to escape periods in the name... */ |
8b93c638 JM |
3588 | p = name; |
3589 | ||
3590 | while (*p != '\000') | |
3591 | { | |
3592 | if (*p == '-') | |
3593 | *p = '.'; | |
3594 | p++; | |
3595 | } | |
3596 | ||
3597 | return name; | |
3598 | } | |
3599 | ||
3600 | static char * | |
fba45db2 | 3601 | java_name_of_child (struct varobj *parent, int index) |
8b93c638 JM |
3602 | { |
3603 | char *name, *p; | |
3604 | ||
3605 | name = cplus_name_of_child (parent, index); | |
581e13c1 | 3606 | /* Escape any periods in the name... */ |
8b93c638 JM |
3607 | p = name; |
3608 | ||
3609 | while (*p != '\000') | |
3610 | { | |
3611 | if (*p == '.') | |
3612 | *p = '-'; | |
3613 | p++; | |
3614 | } | |
3615 | ||
3616 | return name; | |
3617 | } | |
3618 | ||
02142340 VP |
3619 | static char * |
3620 | java_path_expr_of_child (struct varobj *child) | |
3621 | { | |
3622 | return NULL; | |
3623 | } | |
3624 | ||
30b28db1 | 3625 | static struct value * |
fba45db2 | 3626 | java_value_of_root (struct varobj **var_handle) |
8b93c638 | 3627 | { |
73a93a32 | 3628 | return cplus_value_of_root (var_handle); |
8b93c638 JM |
3629 | } |
3630 | ||
30b28db1 | 3631 | static struct value * |
fba45db2 | 3632 | java_value_of_child (struct varobj *parent, int index) |
8b93c638 JM |
3633 | { |
3634 | return cplus_value_of_child (parent, index); | |
3635 | } | |
3636 | ||
3637 | static struct type * | |
fba45db2 | 3638 | java_type_of_child (struct varobj *parent, int index) |
8b93c638 JM |
3639 | { |
3640 | return cplus_type_of_child (parent, index); | |
3641 | } | |
3642 | ||
8b93c638 | 3643 | static char * |
de051565 | 3644 | java_value_of_variable (struct varobj *var, enum varobj_display_formats format) |
8b93c638 | 3645 | { |
de051565 | 3646 | return cplus_value_of_variable (var, format); |
8b93c638 | 3647 | } |
54333c3b | 3648 | |
40591b7d JCD |
3649 | /* Ada specific callbacks for VAROBJs. */ |
3650 | ||
3651 | static int | |
3652 | ada_number_of_children (struct varobj *var) | |
3653 | { | |
3654 | return c_number_of_children (var); | |
3655 | } | |
3656 | ||
3657 | static char * | |
3658 | ada_name_of_variable (struct varobj *parent) | |
3659 | { | |
3660 | return c_name_of_variable (parent); | |
3661 | } | |
3662 | ||
3663 | static char * | |
3664 | ada_name_of_child (struct varobj *parent, int index) | |
3665 | { | |
3666 | return c_name_of_child (parent, index); | |
3667 | } | |
3668 | ||
3669 | static char* | |
3670 | ada_path_expr_of_child (struct varobj *child) | |
3671 | { | |
3672 | return c_path_expr_of_child (child); | |
3673 | } | |
3674 | ||
3675 | static struct value * | |
3676 | ada_value_of_root (struct varobj **var_handle) | |
3677 | { | |
3678 | return c_value_of_root (var_handle); | |
3679 | } | |
3680 | ||
3681 | static struct value * | |
3682 | ada_value_of_child (struct varobj *parent, int index) | |
3683 | { | |
3684 | return c_value_of_child (parent, index); | |
3685 | } | |
3686 | ||
3687 | static struct type * | |
3688 | ada_type_of_child (struct varobj *parent, int index) | |
3689 | { | |
3690 | return c_type_of_child (parent, index); | |
3691 | } | |
3692 | ||
3693 | static char * | |
3694 | ada_value_of_variable (struct varobj *var, enum varobj_display_formats format) | |
3695 | { | |
3696 | return c_value_of_variable (var, format); | |
3697 | } | |
3698 | ||
54333c3b JK |
3699 | /* Iterate all the existing _root_ VAROBJs and call the FUNC callback for them |
3700 | with an arbitrary caller supplied DATA pointer. */ | |
3701 | ||
3702 | void | |
3703 | all_root_varobjs (void (*func) (struct varobj *var, void *data), void *data) | |
3704 | { | |
3705 | struct varobj_root *var_root, *var_root_next; | |
3706 | ||
3707 | /* Iterate "safely" - handle if the callee deletes its passed VAROBJ. */ | |
3708 | ||
3709 | for (var_root = rootlist; var_root != NULL; var_root = var_root_next) | |
3710 | { | |
3711 | var_root_next = var_root->next; | |
3712 | ||
3713 | (*func) (var_root->rootvar, data); | |
3714 | } | |
3715 | } | |
8b93c638 JM |
3716 | \f |
3717 | extern void _initialize_varobj (void); | |
3718 | void | |
3719 | _initialize_varobj (void) | |
3720 | { | |
3721 | int sizeof_table = sizeof (struct vlist *) * VAROBJ_TABLE_SIZE; | |
3722 | ||
3723 | varobj_table = xmalloc (sizeof_table); | |
3724 | memset (varobj_table, 0, sizeof_table); | |
3725 | ||
85c07804 | 3726 | add_setshow_zinteger_cmd ("debugvarobj", class_maintenance, |
3e43a32a MS |
3727 | &varobjdebug, |
3728 | _("Set varobj debugging."), | |
3729 | _("Show varobj debugging."), | |
3730 | _("When non-zero, varobj debugging is enabled."), | |
3731 | NULL, show_varobjdebug, | |
85c07804 | 3732 | &setlist, &showlist); |
8b93c638 | 3733 | } |
8756216b | 3734 | |
54333c3b JK |
3735 | /* Invalidate varobj VAR if it is tied to locals and re-create it if it is |
3736 | defined on globals. It is a helper for varobj_invalidate. */ | |
2dbd25e5 | 3737 | |
54333c3b JK |
3738 | static void |
3739 | varobj_invalidate_iter (struct varobj *var, void *unused) | |
8756216b | 3740 | { |
54333c3b JK |
3741 | /* Floating varobjs are reparsed on each stop, so we don't care if the |
3742 | presently parsed expression refers to something that's gone. */ | |
3743 | if (var->root->floating) | |
3744 | return; | |
8756216b | 3745 | |
54333c3b JK |
3746 | /* global var must be re-evaluated. */ |
3747 | if (var->root->valid_block == NULL) | |
2dbd25e5 | 3748 | { |
54333c3b | 3749 | struct varobj *tmp_var; |
2dbd25e5 | 3750 | |
54333c3b JK |
3751 | /* Try to create a varobj with same expression. If we succeed |
3752 | replace the old varobj, otherwise invalidate it. */ | |
3753 | tmp_var = varobj_create (NULL, var->name, (CORE_ADDR) 0, | |
3754 | USE_CURRENT_FRAME); | |
3755 | if (tmp_var != NULL) | |
3756 | { | |
3757 | tmp_var->obj_name = xstrdup (var->obj_name); | |
3758 | varobj_delete (var, NULL, 0); | |
3759 | install_variable (tmp_var); | |
2dbd25e5 | 3760 | } |
54333c3b JK |
3761 | else |
3762 | var->root->is_valid = 0; | |
2dbd25e5 | 3763 | } |
54333c3b JK |
3764 | else /* locals must be invalidated. */ |
3765 | var->root->is_valid = 0; | |
3766 | } | |
3767 | ||
3768 | /* Invalidate the varobjs that are tied to locals and re-create the ones that | |
3769 | are defined on globals. | |
3770 | Invalidated varobjs will be always printed in_scope="invalid". */ | |
3771 | ||
3772 | void | |
3773 | varobj_invalidate (void) | |
3774 | { | |
3775 | all_root_varobjs (varobj_invalidate_iter, NULL); | |
8756216b | 3776 | } |