Commit | Line | Data |
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fb40c209 | 1 | /* MI Command Set - varobj commands. |
b6ba6518 | 2 | Copyright 2000 Free Software Foundation, Inc. |
ab91fdd5 | 3 | Contributed by Cygnus Solutions (a Red Hat company). |
fb40c209 AC |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #include "defs.h" | |
23 | #include "mi-cmds.h" | |
24 | #include "ui-out.h" | |
25 | #include "mi-out.h" | |
26 | #include "varobj.h" | |
27 | #include "value.h" | |
28 | #include <ctype.h> | |
29 | ||
30 | /* Convenience macro for allocting typesafe memory. */ | |
31 | ||
32 | #undef XMALLOC | |
33 | #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE)) | |
34 | ||
35 | extern int varobjdebug; /* defined in varobj.c */ | |
36 | ||
73a93a32 | 37 | static int varobj_update_one (struct varobj *var); |
fb40c209 AC |
38 | |
39 | /* VAROBJ operations */ | |
40 | ||
41 | enum mi_cmd_result | |
42 | mi_cmd_var_create (char *command, char **argv, int argc) | |
43 | { | |
73a93a32 | 44 | CORE_ADDR frameaddr = 0; |
fb40c209 AC |
45 | struct varobj *var; |
46 | char *name; | |
47 | char *frame; | |
48 | char *expr; | |
49 | char *type; | |
50 | struct cleanup *old_cleanups; | |
73a93a32 | 51 | enum varobj_type var_type; |
fb40c209 AC |
52 | |
53 | if (argc != 3) | |
54 | { | |
76995688 | 55 | /* xasprintf (&mi_error_message, |
fb40c209 AC |
56 | "mi_cmd_var_create: Usage: ."); |
57 | return MI_CMD_ERROR; */ | |
58 | error ("mi_cmd_var_create: Usage: NAME FRAME EXPRESSION."); | |
59 | } | |
60 | ||
61 | name = xstrdup (argv[0]); | |
62 | /* Add cleanup for name. Must be free_current_contents as | |
63 | name can be reallocated */ | |
47cf603e | 64 | old_cleanups = make_cleanup (free_current_contents, &name); |
fb40c209 AC |
65 | |
66 | frame = xstrdup (argv[1]); | |
b8c9b27d | 67 | old_cleanups = make_cleanup (xfree, frame); |
fb40c209 AC |
68 | |
69 | expr = xstrdup (argv[2]); | |
70 | ||
71 | if (strcmp (name, "-") == 0) | |
72 | { | |
b8c9b27d | 73 | xfree (name); |
fb40c209 AC |
74 | name = varobj_gen_name (); |
75 | } | |
76 | else if (!isalpha (*name)) | |
77 | error ("mi_cmd_var_create: name of object must begin with a letter"); | |
78 | ||
79 | if (strcmp (frame, "*") == 0) | |
73a93a32 JI |
80 | var_type = USE_CURRENT_FRAME; |
81 | else if (strcmp (frame, "@") == 0) | |
82 | var_type = USE_SELECTED_FRAME; | |
fb40c209 | 83 | else |
73a93a32 JI |
84 | { |
85 | var_type = USE_SPECIFIED_FRAME; | |
86 | frameaddr = parse_and_eval_address (frame); | |
87 | } | |
fb40c209 AC |
88 | |
89 | if (varobjdebug) | |
90 | fprintf_unfiltered (gdb_stdlog, | |
91 | "Name=\"%s\", Frame=\"%s\" (0x%s), Expression=\"%s\"\n", | |
92 | name, frame, paddr (frameaddr), expr); | |
93 | ||
73a93a32 | 94 | var = varobj_create (name, expr, frameaddr, var_type); |
fb40c209 AC |
95 | |
96 | if (var == NULL) | |
97 | error ("mi_cmd_var_create: unable to create variable object"); | |
98 | ||
99 | ui_out_field_string (uiout, "name", name); | |
100 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); | |
101 | type = varobj_get_type (var); | |
102 | if (type == NULL) | |
103 | ui_out_field_string (uiout, "type", ""); | |
104 | else | |
105 | { | |
106 | ui_out_field_string (uiout, "type", type); | |
b8c9b27d | 107 | xfree (type); |
fb40c209 AC |
108 | } |
109 | ||
110 | do_cleanups (old_cleanups); | |
111 | return MI_CMD_DONE; | |
112 | } | |
113 | ||
114 | enum mi_cmd_result | |
115 | mi_cmd_var_delete (char *command, char **argv, int argc) | |
116 | { | |
117 | char *name; | |
118 | char *expr; | |
119 | struct varobj *var; | |
120 | int numdel; | |
121 | int children_only_p = 0; | |
122 | struct cleanup *old_cleanups; | |
123 | ||
124 | if (argc < 1 || argc > 2) | |
125 | error ("mi_cmd_var_delete: Usage: [-c] EXPRESSION."); | |
126 | ||
127 | name = xstrdup (argv[0]); | |
128 | /* Add cleanup for name. Must be free_current_contents as | |
129 | name can be reallocated */ | |
47cf603e | 130 | old_cleanups = make_cleanup (free_current_contents, &name); |
fb40c209 AC |
131 | |
132 | /* If we have one single argument it cannot be '-c' or any string | |
133 | starting with '-'. */ | |
134 | if (argc == 1) | |
135 | { | |
136 | if (strcmp (name, "-c") == 0) | |
137 | error ("mi_cmd_var_delete: Missing required argument after '-c': variable object name"); | |
138 | if (*name == '-') | |
139 | error ("mi_cmd_var_delete: Illegal variable object name"); | |
140 | } | |
141 | ||
142 | /* If we have 2 arguments they must be '-c' followed by a string | |
143 | which would be the variable name. */ | |
144 | if (argc == 2) | |
145 | { | |
146 | expr = xstrdup (argv[1]); | |
147 | if (strcmp (name, "-c") != 0) | |
148 | error ("mi_cmd_var_delete: Invalid option."); | |
149 | children_only_p = 1; | |
b8c9b27d | 150 | xfree (name); |
fb40c209 | 151 | name = xstrdup (expr); |
b8c9b27d | 152 | xfree (expr); |
fb40c209 AC |
153 | } |
154 | ||
155 | /* If we didn't error out, now NAME contains the name of the | |
156 | variable. */ | |
157 | ||
158 | var = varobj_get_handle (name); | |
159 | ||
160 | if (var == NULL) | |
161 | error ("mi_cmd_var_delete: Variable object not found."); | |
162 | ||
163 | numdel = varobj_delete (var, NULL, children_only_p); | |
164 | ||
165 | ui_out_field_int (uiout, "ndeleted", numdel); | |
166 | ||
167 | do_cleanups (old_cleanups); | |
168 | return MI_CMD_DONE; | |
169 | } | |
170 | ||
171 | enum mi_cmd_result | |
172 | mi_cmd_var_set_format (char *command, char **argv, int argc) | |
173 | { | |
174 | enum varobj_display_formats format; | |
175 | int len; | |
176 | struct varobj *var; | |
177 | char *formspec; | |
178 | ||
179 | if (argc != 2) | |
180 | error ("mi_cmd_var_set_format: Usage: NAME FORMAT."); | |
181 | ||
182 | /* Get varobj handle, if a valid var obj name was specified */ | |
183 | var = varobj_get_handle (argv[0]); | |
184 | ||
185 | if (var == NULL) | |
186 | error ("mi_cmd_var_set_format: Variable object not found"); | |
187 | ||
188 | formspec = xstrdup (argv[1]); | |
189 | if (formspec == NULL) | |
190 | error ("mi_cmd_var_set_format: Must specify the format as: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); | |
191 | ||
192 | len = strlen (formspec); | |
193 | ||
194 | if (STREQN (formspec, "natural", len)) | |
195 | format = FORMAT_NATURAL; | |
196 | else if (STREQN (formspec, "binary", len)) | |
197 | format = FORMAT_BINARY; | |
198 | else if (STREQN (formspec, "decimal", len)) | |
199 | format = FORMAT_DECIMAL; | |
200 | else if (STREQN (formspec, "hexadecimal", len)) | |
201 | format = FORMAT_HEXADECIMAL; | |
202 | else if (STREQN (formspec, "octal", len)) | |
203 | format = FORMAT_OCTAL; | |
204 | else | |
205 | error ("mi_cmd_var_set_format: Unknown display format: must be: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); | |
206 | ||
207 | /* Set the format of VAR to given format */ | |
208 | varobj_set_display_format (var, format); | |
209 | ||
210 | /* Report the new current format */ | |
211 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); | |
212 | return MI_CMD_DONE; | |
213 | } | |
214 | ||
215 | enum mi_cmd_result | |
216 | mi_cmd_var_show_format (char *command, char **argv, int argc) | |
217 | { | |
218 | enum varobj_display_formats format; | |
219 | struct varobj *var; | |
220 | ||
221 | if (argc != 1) | |
222 | error ("mi_cmd_var_show_format: Usage: NAME."); | |
223 | ||
224 | /* Get varobj handle, if a valid var obj name was specified */ | |
225 | var = varobj_get_handle (argv[0]); | |
226 | if (var == NULL) | |
227 | error ("mi_cmd_var_show_format: Variable object not found"); | |
228 | ||
229 | format = varobj_get_display_format (var); | |
230 | ||
231 | /* Report the current format */ | |
232 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); | |
233 | return MI_CMD_DONE; | |
234 | } | |
235 | ||
236 | enum mi_cmd_result | |
237 | mi_cmd_var_info_num_children (char *command, char **argv, int argc) | |
238 | { | |
239 | struct varobj *var; | |
240 | ||
241 | if (argc != 1) | |
242 | error ("mi_cmd_var_info_num_children: Usage: NAME."); | |
243 | ||
244 | /* Get varobj handle, if a valid var obj name was specified */ | |
245 | var = varobj_get_handle (argv[0]); | |
246 | if (var == NULL) | |
247 | error ("mi_cmd_var_info_num_children: Variable object not found"); | |
248 | ||
249 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); | |
250 | return MI_CMD_DONE; | |
251 | } | |
252 | ||
253 | enum mi_cmd_result | |
254 | mi_cmd_var_list_children (char *command, char **argv, int argc) | |
255 | { | |
256 | struct varobj *var; | |
257 | struct varobj **childlist; | |
258 | struct varobj **cc; | |
259 | int numchild; | |
260 | char *type; | |
261 | ||
262 | if (argc != 1) | |
263 | error ("mi_cmd_var_list_children: Usage: NAME."); | |
264 | ||
265 | /* Get varobj handle, if a valid var obj name was specified */ | |
266 | var = varobj_get_handle (argv[0]); | |
267 | if (var == NULL) | |
268 | error ("mi_cmd_var_list_children: Variable object not found"); | |
269 | ||
270 | numchild = varobj_list_children (var, &childlist); | |
271 | ui_out_field_int (uiout, "numchild", numchild); | |
272 | ||
273 | if (numchild <= 0) | |
274 | return MI_CMD_DONE; | |
275 | ||
666547aa | 276 | ui_out_tuple_begin (uiout, "children"); |
fb40c209 AC |
277 | cc = childlist; |
278 | while (*cc != NULL) | |
279 | { | |
666547aa | 280 | ui_out_tuple_begin (uiout, "child"); |
fb40c209 AC |
281 | ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); |
282 | ui_out_field_string (uiout, "exp", varobj_get_expression (*cc)); | |
283 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (*cc)); | |
284 | type = varobj_get_type (*cc); | |
285 | /* C++ pseudo-variables (public, private, protected) do not have a type */ | |
286 | if (type) | |
287 | ui_out_field_string (uiout, "type", varobj_get_type (*cc)); | |
666547aa | 288 | ui_out_tuple_end (uiout); |
fb40c209 AC |
289 | cc++; |
290 | } | |
666547aa | 291 | ui_out_tuple_end (uiout); |
b8c9b27d | 292 | xfree (childlist); |
fb40c209 AC |
293 | return MI_CMD_DONE; |
294 | } | |
295 | ||
296 | enum mi_cmd_result | |
297 | mi_cmd_var_info_type (char *command, char **argv, int argc) | |
298 | { | |
299 | struct varobj *var; | |
300 | ||
301 | if (argc != 1) | |
302 | error ("mi_cmd_var_info_type: Usage: NAME."); | |
303 | ||
304 | /* Get varobj handle, if a valid var obj name was specified */ | |
305 | var = varobj_get_handle (argv[0]); | |
306 | if (var == NULL) | |
307 | error ("mi_cmd_var_info_type: Variable object not found"); | |
308 | ||
309 | ui_out_field_string (uiout, "type", varobj_get_type (var)); | |
310 | return MI_CMD_DONE; | |
311 | } | |
312 | ||
313 | enum mi_cmd_result | |
314 | mi_cmd_var_info_expression (char *command, char **argv, int argc) | |
315 | { | |
316 | enum varobj_languages lang; | |
317 | struct varobj *var; | |
318 | ||
319 | if (argc != 1) | |
320 | error ("mi_cmd_var_info_expression: Usage: NAME."); | |
321 | ||
322 | /* Get varobj handle, if a valid var obj name was specified */ | |
323 | var = varobj_get_handle (argv[0]); | |
324 | if (var == NULL) | |
325 | error ("mi_cmd_var_info_expression: Variable object not found"); | |
326 | ||
327 | lang = varobj_get_language (var); | |
328 | ||
329 | ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]); | |
330 | ui_out_field_string (uiout, "exp", varobj_get_expression (var)); | |
331 | return MI_CMD_DONE; | |
332 | } | |
333 | ||
334 | enum mi_cmd_result | |
335 | mi_cmd_var_show_attributes (char *command, char **argv, int argc) | |
336 | { | |
337 | int attr; | |
338 | char *attstr; | |
339 | struct varobj *var; | |
340 | ||
341 | if (argc != 1) | |
342 | error ("mi_cmd_var_show_attributes: Usage: NAME."); | |
343 | ||
344 | /* Get varobj handle, if a valid var obj name was specified */ | |
345 | var = varobj_get_handle (argv[0]); | |
346 | if (var == NULL) | |
347 | error ("mi_cmd_var_show_attributes: Variable object not found"); | |
348 | ||
349 | attr = varobj_get_attributes (var); | |
350 | /* FIXME: define masks for attributes */ | |
351 | if (attr & 0x00000001) | |
352 | attstr = "editable"; | |
353 | else | |
354 | attstr = "noneditable"; | |
355 | ||
356 | ui_out_field_string (uiout, "attr", attstr); | |
357 | return MI_CMD_DONE; | |
358 | } | |
359 | ||
360 | enum mi_cmd_result | |
361 | mi_cmd_var_evaluate_expression (char *command, char **argv, int argc) | |
362 | { | |
363 | struct varobj *var; | |
364 | ||
365 | if (argc != 1) | |
366 | error ("mi_cmd_var_evaluate_expression: Usage: NAME."); | |
367 | ||
368 | /* Get varobj handle, if a valid var obj name was specified */ | |
369 | var = varobj_get_handle (argv[0]); | |
370 | if (var == NULL) | |
371 | error ("mi_cmd_var_evaluate_expression: Variable object not found"); | |
372 | ||
373 | ui_out_field_string (uiout, "value", varobj_get_value (var)); | |
374 | return MI_CMD_DONE; | |
375 | } | |
376 | ||
377 | enum mi_cmd_result | |
378 | mi_cmd_var_assign (char *command, char **argv, int argc) | |
379 | { | |
380 | struct varobj *var; | |
381 | char *expression; | |
382 | ||
383 | if (argc != 2) | |
384 | error ("mi_cmd_var_assign: Usage: NAME EXPRESSION."); | |
385 | ||
386 | /* Get varobj handle, if a valid var obj name was specified */ | |
387 | var = varobj_get_handle (argv[0]); | |
388 | if (var == NULL) | |
389 | error ("mi_cmd_var_assign: Variable object not found"); | |
390 | ||
391 | /* FIXME: define masks for attributes */ | |
392 | if (!(varobj_get_attributes (var) & 0x00000001)) | |
393 | error ("mi_cmd_var_assign: Variable object is not editable"); | |
394 | ||
395 | expression = xstrdup (argv[1]); | |
396 | ||
397 | if (!varobj_set_value (var, expression)) | |
398 | error ("mi_cmd_var_assign: Could not assign expression to varible object"); | |
399 | ||
400 | ui_out_field_string (uiout, "value", varobj_get_value (var)); | |
401 | return MI_CMD_DONE; | |
402 | } | |
403 | ||
404 | enum mi_cmd_result | |
405 | mi_cmd_var_update (char *command, char **argv, int argc) | |
406 | { | |
407 | struct varobj *var; | |
408 | struct varobj **rootlist; | |
409 | struct varobj **cr; | |
410 | char *name; | |
411 | int nv; | |
412 | ||
413 | if (argc != 1) | |
414 | error ("mi_cmd_var_update: Usage: NAME."); | |
415 | ||
416 | name = argv[0]; | |
417 | ||
418 | /* Check if the parameter is a "*" which means that we want | |
419 | to update all variables */ | |
420 | ||
421 | if ((*name == '*') && (*(name + 1) == '\0')) | |
422 | { | |
423 | nv = varobj_list (&rootlist); | |
666547aa | 424 | ui_out_tuple_begin (uiout, "changelist"); |
fb40c209 AC |
425 | if (nv <= 0) |
426 | { | |
666547aa | 427 | ui_out_tuple_end (uiout); |
fb40c209 AC |
428 | return MI_CMD_DONE; |
429 | } | |
430 | cr = rootlist; | |
431 | while (*cr != NULL) | |
432 | { | |
433 | varobj_update_one (*cr); | |
434 | cr++; | |
435 | } | |
b8c9b27d | 436 | xfree (rootlist); |
666547aa | 437 | ui_out_tuple_end (uiout); |
fb40c209 AC |
438 | } |
439 | else | |
440 | { | |
441 | /* Get varobj handle, if a valid var obj name was specified */ | |
442 | var = varobj_get_handle (name); | |
443 | if (var == NULL) | |
444 | error ("mi_cmd_var_update: Variable object not found"); | |
445 | ||
666547aa | 446 | ui_out_tuple_begin (uiout, "changelist"); |
fb40c209 | 447 | varobj_update_one (var); |
666547aa | 448 | ui_out_tuple_end (uiout); |
fb40c209 | 449 | } |
73a93a32 | 450 | return MI_CMD_DONE; |
fb40c209 AC |
451 | } |
452 | ||
73a93a32 JI |
453 | /* Helper for mi_cmd_var_update() Returns 0 if the update for |
454 | the variable fails (usually because the variable is out of | |
455 | scope), and 1 if it succeeds. */ | |
fb40c209 | 456 | |
73a93a32 | 457 | static int |
fb40c209 AC |
458 | varobj_update_one (struct varobj *var) |
459 | { | |
460 | struct varobj **changelist; | |
461 | struct varobj **cc; | |
462 | int nc; | |
463 | ||
464 | nc = varobj_update (var, &changelist); | |
465 | ||
73a93a32 JI |
466 | /* nc == 0 means that nothing has changed. |
467 | nc == -1 means that an error occured in updating the variable. | |
468 | nc == -2 means the variable has changed type. */ | |
469 | ||
470 | if (nc == 0) | |
471 | return 1; | |
472 | else if (nc == -1) | |
fb40c209 | 473 | { |
73a93a32 JI |
474 | ui_out_field_string (uiout, "name", varobj_get_objname(var)); |
475 | ui_out_field_string (uiout, "in_scope", "false"); | |
476 | return -1; | |
477 | } | |
478 | else if (nc == -2) | |
479 | { | |
480 | ui_out_field_string (uiout, "name", varobj_get_objname (var)); | |
481 | ui_out_field_string (uiout, "in_scope", "true"); | |
482 | ui_out_field_string (uiout, "new_type", varobj_get_type(var)); | |
483 | ui_out_field_int (uiout, "new_num_children", | |
484 | varobj_get_num_children(var)); | |
485 | } | |
486 | else | |
487 | { | |
488 | ||
489 | cc = changelist; | |
490 | while (*cc != NULL) | |
491 | { | |
492 | ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); | |
493 | ui_out_field_string (uiout, "in_scope", "true"); | |
494 | ui_out_field_string (uiout, "type_changed", "false"); | |
495 | cc++; | |
496 | } | |
b8c9b27d | 497 | xfree (changelist); |
73a93a32 | 498 | return 1; |
fb40c209 | 499 | } |
73a93a32 | 500 | return 1; |
fb40c209 | 501 | } |