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fb40c209 | 1 | /* MI Command Set - varobj commands. |
349c5d5f AC |
2 | |
3 | Copyright 2000, 2002 Free Software Foundation, Inc. | |
4 | ||
ab91fdd5 | 5 | Contributed by Cygnus Solutions (a Red Hat company). |
fb40c209 AC |
6 | |
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
23 | ||
24 | #include "defs.h" | |
25 | #include "mi-cmds.h" | |
26 | #include "ui-out.h" | |
27 | #include "mi-out.h" | |
28 | #include "varobj.h" | |
29 | #include "value.h" | |
30 | #include <ctype.h> | |
5f8a3188 | 31 | #include "gdb_string.h" |
fb40c209 | 32 | |
fb40c209 AC |
33 | extern int varobjdebug; /* defined in varobj.c */ |
34 | ||
73a93a32 | 35 | static int varobj_update_one (struct varobj *var); |
fb40c209 AC |
36 | |
37 | /* VAROBJ operations */ | |
38 | ||
39 | enum mi_cmd_result | |
40 | mi_cmd_var_create (char *command, char **argv, int argc) | |
41 | { | |
73a93a32 | 42 | CORE_ADDR frameaddr = 0; |
fb40c209 AC |
43 | struct varobj *var; |
44 | char *name; | |
45 | char *frame; | |
46 | char *expr; | |
47 | char *type; | |
48 | struct cleanup *old_cleanups; | |
73a93a32 | 49 | enum varobj_type var_type; |
fb40c209 AC |
50 | |
51 | if (argc != 3) | |
52 | { | |
76995688 | 53 | /* xasprintf (&mi_error_message, |
fb40c209 AC |
54 | "mi_cmd_var_create: Usage: ."); |
55 | return MI_CMD_ERROR; */ | |
56 | error ("mi_cmd_var_create: Usage: NAME FRAME EXPRESSION."); | |
57 | } | |
58 | ||
59 | name = xstrdup (argv[0]); | |
60 | /* Add cleanup for name. Must be free_current_contents as | |
61 | name can be reallocated */ | |
47cf603e | 62 | old_cleanups = make_cleanup (free_current_contents, &name); |
fb40c209 AC |
63 | |
64 | frame = xstrdup (argv[1]); | |
b8c9b27d | 65 | old_cleanups = make_cleanup (xfree, frame); |
fb40c209 AC |
66 | |
67 | expr = xstrdup (argv[2]); | |
68 | ||
69 | if (strcmp (name, "-") == 0) | |
70 | { | |
b8c9b27d | 71 | xfree (name); |
fb40c209 AC |
72 | name = varobj_gen_name (); |
73 | } | |
74 | else if (!isalpha (*name)) | |
75 | error ("mi_cmd_var_create: name of object must begin with a letter"); | |
76 | ||
77 | if (strcmp (frame, "*") == 0) | |
73a93a32 JI |
78 | var_type = USE_CURRENT_FRAME; |
79 | else if (strcmp (frame, "@") == 0) | |
80 | var_type = USE_SELECTED_FRAME; | |
fb40c209 | 81 | else |
73a93a32 JI |
82 | { |
83 | var_type = USE_SPECIFIED_FRAME; | |
1bd34ded | 84 | frameaddr = string_to_core_addr (frame); |
73a93a32 | 85 | } |
fb40c209 AC |
86 | |
87 | if (varobjdebug) | |
88 | fprintf_unfiltered (gdb_stdlog, | |
89 | "Name=\"%s\", Frame=\"%s\" (0x%s), Expression=\"%s\"\n", | |
90 | name, frame, paddr (frameaddr), expr); | |
91 | ||
73a93a32 | 92 | var = varobj_create (name, expr, frameaddr, var_type); |
fb40c209 AC |
93 | |
94 | if (var == NULL) | |
95 | error ("mi_cmd_var_create: unable to create variable object"); | |
96 | ||
97 | ui_out_field_string (uiout, "name", name); | |
98 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); | |
99 | type = varobj_get_type (var); | |
100 | if (type == NULL) | |
101 | ui_out_field_string (uiout, "type", ""); | |
102 | else | |
103 | { | |
104 | ui_out_field_string (uiout, "type", type); | |
b8c9b27d | 105 | xfree (type); |
fb40c209 AC |
106 | } |
107 | ||
108 | do_cleanups (old_cleanups); | |
109 | return MI_CMD_DONE; | |
110 | } | |
111 | ||
112 | enum mi_cmd_result | |
113 | mi_cmd_var_delete (char *command, char **argv, int argc) | |
114 | { | |
115 | char *name; | |
116 | char *expr; | |
117 | struct varobj *var; | |
118 | int numdel; | |
119 | int children_only_p = 0; | |
120 | struct cleanup *old_cleanups; | |
121 | ||
122 | if (argc < 1 || argc > 2) | |
123 | error ("mi_cmd_var_delete: Usage: [-c] EXPRESSION."); | |
124 | ||
125 | name = xstrdup (argv[0]); | |
126 | /* Add cleanup for name. Must be free_current_contents as | |
127 | name can be reallocated */ | |
47cf603e | 128 | old_cleanups = make_cleanup (free_current_contents, &name); |
fb40c209 AC |
129 | |
130 | /* If we have one single argument it cannot be '-c' or any string | |
131 | starting with '-'. */ | |
132 | if (argc == 1) | |
133 | { | |
134 | if (strcmp (name, "-c") == 0) | |
135 | error ("mi_cmd_var_delete: Missing required argument after '-c': variable object name"); | |
136 | if (*name == '-') | |
137 | error ("mi_cmd_var_delete: Illegal variable object name"); | |
138 | } | |
139 | ||
140 | /* If we have 2 arguments they must be '-c' followed by a string | |
141 | which would be the variable name. */ | |
142 | if (argc == 2) | |
143 | { | |
144 | expr = xstrdup (argv[1]); | |
145 | if (strcmp (name, "-c") != 0) | |
146 | error ("mi_cmd_var_delete: Invalid option."); | |
147 | children_only_p = 1; | |
b8c9b27d | 148 | xfree (name); |
fb40c209 | 149 | name = xstrdup (expr); |
b8c9b27d | 150 | xfree (expr); |
fb40c209 AC |
151 | } |
152 | ||
153 | /* If we didn't error out, now NAME contains the name of the | |
154 | variable. */ | |
155 | ||
156 | var = varobj_get_handle (name); | |
157 | ||
158 | if (var == NULL) | |
159 | error ("mi_cmd_var_delete: Variable object not found."); | |
160 | ||
161 | numdel = varobj_delete (var, NULL, children_only_p); | |
162 | ||
163 | ui_out_field_int (uiout, "ndeleted", numdel); | |
164 | ||
165 | do_cleanups (old_cleanups); | |
166 | return MI_CMD_DONE; | |
167 | } | |
168 | ||
169 | enum mi_cmd_result | |
170 | mi_cmd_var_set_format (char *command, char **argv, int argc) | |
171 | { | |
172 | enum varobj_display_formats format; | |
173 | int len; | |
174 | struct varobj *var; | |
175 | char *formspec; | |
176 | ||
177 | if (argc != 2) | |
178 | error ("mi_cmd_var_set_format: Usage: NAME FORMAT."); | |
179 | ||
180 | /* Get varobj handle, if a valid var obj name was specified */ | |
181 | var = varobj_get_handle (argv[0]); | |
182 | ||
183 | if (var == NULL) | |
184 | error ("mi_cmd_var_set_format: Variable object not found"); | |
185 | ||
186 | formspec = xstrdup (argv[1]); | |
187 | if (formspec == NULL) | |
188 | error ("mi_cmd_var_set_format: Must specify the format as: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); | |
189 | ||
190 | len = strlen (formspec); | |
191 | ||
192 | if (STREQN (formspec, "natural", len)) | |
193 | format = FORMAT_NATURAL; | |
194 | else if (STREQN (formspec, "binary", len)) | |
195 | format = FORMAT_BINARY; | |
196 | else if (STREQN (formspec, "decimal", len)) | |
197 | format = FORMAT_DECIMAL; | |
198 | else if (STREQN (formspec, "hexadecimal", len)) | |
199 | format = FORMAT_HEXADECIMAL; | |
200 | else if (STREQN (formspec, "octal", len)) | |
201 | format = FORMAT_OCTAL; | |
202 | else | |
203 | error ("mi_cmd_var_set_format: Unknown display format: must be: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); | |
204 | ||
205 | /* Set the format of VAR to given format */ | |
206 | varobj_set_display_format (var, format); | |
207 | ||
208 | /* Report the new current format */ | |
209 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); | |
210 | return MI_CMD_DONE; | |
211 | } | |
212 | ||
213 | enum mi_cmd_result | |
214 | mi_cmd_var_show_format (char *command, char **argv, int argc) | |
215 | { | |
216 | enum varobj_display_formats format; | |
217 | struct varobj *var; | |
218 | ||
219 | if (argc != 1) | |
220 | error ("mi_cmd_var_show_format: Usage: NAME."); | |
221 | ||
222 | /* Get varobj handle, if a valid var obj name was specified */ | |
223 | var = varobj_get_handle (argv[0]); | |
224 | if (var == NULL) | |
225 | error ("mi_cmd_var_show_format: Variable object not found"); | |
226 | ||
227 | format = varobj_get_display_format (var); | |
228 | ||
229 | /* Report the current format */ | |
230 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); | |
231 | return MI_CMD_DONE; | |
232 | } | |
233 | ||
234 | enum mi_cmd_result | |
235 | mi_cmd_var_info_num_children (char *command, char **argv, int argc) | |
236 | { | |
237 | struct varobj *var; | |
238 | ||
239 | if (argc != 1) | |
240 | error ("mi_cmd_var_info_num_children: Usage: NAME."); | |
241 | ||
242 | /* Get varobj handle, if a valid var obj name was specified */ | |
243 | var = varobj_get_handle (argv[0]); | |
244 | if (var == NULL) | |
245 | error ("mi_cmd_var_info_num_children: Variable object not found"); | |
246 | ||
247 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); | |
248 | return MI_CMD_DONE; | |
249 | } | |
250 | ||
251 | enum mi_cmd_result | |
252 | mi_cmd_var_list_children (char *command, char **argv, int argc) | |
253 | { | |
254 | struct varobj *var; | |
255 | struct varobj **childlist; | |
256 | struct varobj **cc; | |
6ad4a2cf | 257 | struct cleanup *cleanup_children; |
fb40c209 AC |
258 | int numchild; |
259 | char *type; | |
260 | ||
261 | if (argc != 1) | |
262 | error ("mi_cmd_var_list_children: Usage: NAME."); | |
263 | ||
264 | /* Get varobj handle, if a valid var obj name was specified */ | |
265 | var = varobj_get_handle (argv[0]); | |
266 | if (var == NULL) | |
267 | error ("mi_cmd_var_list_children: Variable object not found"); | |
268 | ||
269 | numchild = varobj_list_children (var, &childlist); | |
270 | ui_out_field_int (uiout, "numchild", numchild); | |
271 | ||
272 | if (numchild <= 0) | |
273 | return MI_CMD_DONE; | |
274 | ||
e7494ffb AC |
275 | if (mi_version (uiout) == 1) |
276 | cleanup_children = make_cleanup_ui_out_tuple_begin_end (uiout, "children"); | |
277 | else | |
278 | cleanup_children = make_cleanup_ui_out_list_begin_end (uiout, "children"); | |
fb40c209 AC |
279 | cc = childlist; |
280 | while (*cc != NULL) | |
281 | { | |
6ad4a2cf JJ |
282 | struct cleanup *cleanup_child; |
283 | cleanup_child = make_cleanup_ui_out_tuple_begin_end (uiout, "child"); | |
fb40c209 AC |
284 | ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); |
285 | ui_out_field_string (uiout, "exp", varobj_get_expression (*cc)); | |
286 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (*cc)); | |
287 | type = varobj_get_type (*cc); | |
288 | /* C++ pseudo-variables (public, private, protected) do not have a type */ | |
289 | if (type) | |
290 | ui_out_field_string (uiout, "type", varobj_get_type (*cc)); | |
6ad4a2cf | 291 | do_cleanups (cleanup_child); |
fb40c209 AC |
292 | cc++; |
293 | } | |
6ad4a2cf | 294 | do_cleanups (cleanup_children); |
b8c9b27d | 295 | xfree (childlist); |
fb40c209 AC |
296 | return MI_CMD_DONE; |
297 | } | |
298 | ||
299 | enum mi_cmd_result | |
300 | mi_cmd_var_info_type (char *command, char **argv, int argc) | |
301 | { | |
302 | struct varobj *var; | |
303 | ||
304 | if (argc != 1) | |
305 | error ("mi_cmd_var_info_type: Usage: NAME."); | |
306 | ||
307 | /* Get varobj handle, if a valid var obj name was specified */ | |
308 | var = varobj_get_handle (argv[0]); | |
309 | if (var == NULL) | |
310 | error ("mi_cmd_var_info_type: Variable object not found"); | |
311 | ||
312 | ui_out_field_string (uiout, "type", varobj_get_type (var)); | |
313 | return MI_CMD_DONE; | |
314 | } | |
315 | ||
316 | enum mi_cmd_result | |
317 | mi_cmd_var_info_expression (char *command, char **argv, int argc) | |
318 | { | |
319 | enum varobj_languages lang; | |
320 | struct varobj *var; | |
321 | ||
322 | if (argc != 1) | |
323 | error ("mi_cmd_var_info_expression: Usage: NAME."); | |
324 | ||
325 | /* Get varobj handle, if a valid var obj name was specified */ | |
326 | var = varobj_get_handle (argv[0]); | |
327 | if (var == NULL) | |
328 | error ("mi_cmd_var_info_expression: Variable object not found"); | |
329 | ||
330 | lang = varobj_get_language (var); | |
331 | ||
332 | ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]); | |
333 | ui_out_field_string (uiout, "exp", varobj_get_expression (var)); | |
334 | return MI_CMD_DONE; | |
335 | } | |
336 | ||
337 | enum mi_cmd_result | |
338 | mi_cmd_var_show_attributes (char *command, char **argv, int argc) | |
339 | { | |
340 | int attr; | |
341 | char *attstr; | |
342 | struct varobj *var; | |
343 | ||
344 | if (argc != 1) | |
345 | error ("mi_cmd_var_show_attributes: Usage: NAME."); | |
346 | ||
347 | /* Get varobj handle, if a valid var obj name was specified */ | |
348 | var = varobj_get_handle (argv[0]); | |
349 | if (var == NULL) | |
350 | error ("mi_cmd_var_show_attributes: Variable object not found"); | |
351 | ||
352 | attr = varobj_get_attributes (var); | |
353 | /* FIXME: define masks for attributes */ | |
354 | if (attr & 0x00000001) | |
355 | attstr = "editable"; | |
356 | else | |
357 | attstr = "noneditable"; | |
358 | ||
359 | ui_out_field_string (uiout, "attr", attstr); | |
360 | return MI_CMD_DONE; | |
361 | } | |
362 | ||
363 | enum mi_cmd_result | |
364 | mi_cmd_var_evaluate_expression (char *command, char **argv, int argc) | |
365 | { | |
366 | struct varobj *var; | |
367 | ||
368 | if (argc != 1) | |
369 | error ("mi_cmd_var_evaluate_expression: Usage: NAME."); | |
370 | ||
371 | /* Get varobj handle, if a valid var obj name was specified */ | |
372 | var = varobj_get_handle (argv[0]); | |
373 | if (var == NULL) | |
374 | error ("mi_cmd_var_evaluate_expression: Variable object not found"); | |
375 | ||
376 | ui_out_field_string (uiout, "value", varobj_get_value (var)); | |
377 | return MI_CMD_DONE; | |
378 | } | |
379 | ||
380 | enum mi_cmd_result | |
381 | mi_cmd_var_assign (char *command, char **argv, int argc) | |
382 | { | |
383 | struct varobj *var; | |
384 | char *expression; | |
385 | ||
386 | if (argc != 2) | |
387 | error ("mi_cmd_var_assign: Usage: NAME EXPRESSION."); | |
388 | ||
389 | /* Get varobj handle, if a valid var obj name was specified */ | |
390 | var = varobj_get_handle (argv[0]); | |
391 | if (var == NULL) | |
392 | error ("mi_cmd_var_assign: Variable object not found"); | |
393 | ||
394 | /* FIXME: define masks for attributes */ | |
395 | if (!(varobj_get_attributes (var) & 0x00000001)) | |
396 | error ("mi_cmd_var_assign: Variable object is not editable"); | |
397 | ||
398 | expression = xstrdup (argv[1]); | |
399 | ||
400 | if (!varobj_set_value (var, expression)) | |
401 | error ("mi_cmd_var_assign: Could not assign expression to varible object"); | |
402 | ||
403 | ui_out_field_string (uiout, "value", varobj_get_value (var)); | |
404 | return MI_CMD_DONE; | |
405 | } | |
406 | ||
407 | enum mi_cmd_result | |
408 | mi_cmd_var_update (char *command, char **argv, int argc) | |
409 | { | |
410 | struct varobj *var; | |
411 | struct varobj **rootlist; | |
412 | struct varobj **cr; | |
3a387118 | 413 | struct cleanup *cleanup; |
fb40c209 AC |
414 | char *name; |
415 | int nv; | |
416 | ||
417 | if (argc != 1) | |
418 | error ("mi_cmd_var_update: Usage: NAME."); | |
419 | ||
420 | name = argv[0]; | |
421 | ||
422 | /* Check if the parameter is a "*" which means that we want | |
423 | to update all variables */ | |
424 | ||
425 | if ((*name == '*') && (*(name + 1) == '\0')) | |
426 | { | |
427 | nv = varobj_list (&rootlist); | |
3a387118 JJ |
428 | if (mi_version (uiout) <= 1) |
429 | cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist"); | |
430 | else | |
431 | cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist"); | |
fb40c209 AC |
432 | if (nv <= 0) |
433 | { | |
3a387118 | 434 | do_cleanups (cleanup); |
fb40c209 AC |
435 | return MI_CMD_DONE; |
436 | } | |
437 | cr = rootlist; | |
438 | while (*cr != NULL) | |
439 | { | |
440 | varobj_update_one (*cr); | |
441 | cr++; | |
442 | } | |
b8c9b27d | 443 | xfree (rootlist); |
3a387118 | 444 | do_cleanups (cleanup); |
fb40c209 AC |
445 | } |
446 | else | |
447 | { | |
448 | /* Get varobj handle, if a valid var obj name was specified */ | |
449 | var = varobj_get_handle (name); | |
450 | if (var == NULL) | |
451 | error ("mi_cmd_var_update: Variable object not found"); | |
452 | ||
3a387118 JJ |
453 | if (mi_version (uiout) <= 1) |
454 | cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist"); | |
455 | else | |
456 | cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist"); | |
fb40c209 | 457 | varobj_update_one (var); |
3a387118 | 458 | do_cleanups (cleanup); |
fb40c209 | 459 | } |
73a93a32 | 460 | return MI_CMD_DONE; |
fb40c209 AC |
461 | } |
462 | ||
73a93a32 JI |
463 | /* Helper for mi_cmd_var_update() Returns 0 if the update for |
464 | the variable fails (usually because the variable is out of | |
465 | scope), and 1 if it succeeds. */ | |
fb40c209 | 466 | |
73a93a32 | 467 | static int |
fb40c209 AC |
468 | varobj_update_one (struct varobj *var) |
469 | { | |
470 | struct varobj **changelist; | |
471 | struct varobj **cc; | |
3a387118 | 472 | struct cleanup *cleanup = NULL; |
fb40c209 AC |
473 | int nc; |
474 | ||
4309c8f2 | 475 | nc = varobj_update (&var, &changelist); |
fb40c209 | 476 | |
73a93a32 JI |
477 | /* nc == 0 means that nothing has changed. |
478 | nc == -1 means that an error occured in updating the variable. | |
479 | nc == -2 means the variable has changed type. */ | |
480 | ||
481 | if (nc == 0) | |
482 | return 1; | |
483 | else if (nc == -1) | |
fb40c209 | 484 | { |
3a387118 JJ |
485 | if (mi_version (uiout) > 1) |
486 | cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
73a93a32 JI |
487 | ui_out_field_string (uiout, "name", varobj_get_objname(var)); |
488 | ui_out_field_string (uiout, "in_scope", "false"); | |
3a387118 JJ |
489 | if (mi_version (uiout) > 1) |
490 | do_cleanups (cleanup); | |
73a93a32 JI |
491 | return -1; |
492 | } | |
493 | else if (nc == -2) | |
494 | { | |
3a387118 JJ |
495 | if (mi_version (uiout) > 1) |
496 | cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
73a93a32 JI |
497 | ui_out_field_string (uiout, "name", varobj_get_objname (var)); |
498 | ui_out_field_string (uiout, "in_scope", "true"); | |
499 | ui_out_field_string (uiout, "new_type", varobj_get_type(var)); | |
500 | ui_out_field_int (uiout, "new_num_children", | |
501 | varobj_get_num_children(var)); | |
3a387118 JJ |
502 | if (mi_version (uiout) > 1) |
503 | do_cleanups (cleanup); | |
73a93a32 JI |
504 | } |
505 | else | |
506 | { | |
507 | ||
508 | cc = changelist; | |
509 | while (*cc != NULL) | |
510 | { | |
3a387118 JJ |
511 | if (mi_version (uiout) > 1) |
512 | cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
73a93a32 JI |
513 | ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); |
514 | ui_out_field_string (uiout, "in_scope", "true"); | |
515 | ui_out_field_string (uiout, "type_changed", "false"); | |
3a387118 JJ |
516 | if (mi_version (uiout) > 1) |
517 | do_cleanups (cleanup); | |
73a93a32 JI |
518 | cc++; |
519 | } | |
b8c9b27d | 520 | xfree (changelist); |
73a93a32 | 521 | return 1; |
fb40c209 | 522 | } |
73a93a32 | 523 | return 1; |
fb40c209 | 524 | } |