Commit | Line | Data |
---|---|---|
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> | |
31 | ||
fb40c209 AC |
32 | extern int varobjdebug; /* defined in varobj.c */ |
33 | ||
73a93a32 | 34 | static int varobj_update_one (struct varobj *var); |
fb40c209 AC |
35 | |
36 | /* VAROBJ operations */ | |
37 | ||
38 | enum mi_cmd_result | |
39 | mi_cmd_var_create (char *command, char **argv, int argc) | |
40 | { | |
73a93a32 | 41 | CORE_ADDR frameaddr = 0; |
fb40c209 AC |
42 | struct varobj *var; |
43 | char *name; | |
44 | char *frame; | |
45 | char *expr; | |
46 | char *type; | |
47 | struct cleanup *old_cleanups; | |
73a93a32 | 48 | enum varobj_type var_type; |
fb40c209 AC |
49 | |
50 | if (argc != 3) | |
51 | { | |
76995688 | 52 | /* xasprintf (&mi_error_message, |
fb40c209 AC |
53 | "mi_cmd_var_create: Usage: ."); |
54 | return MI_CMD_ERROR; */ | |
55 | error ("mi_cmd_var_create: Usage: NAME FRAME EXPRESSION."); | |
56 | } | |
57 | ||
58 | name = xstrdup (argv[0]); | |
59 | /* Add cleanup for name. Must be free_current_contents as | |
60 | name can be reallocated */ | |
47cf603e | 61 | old_cleanups = make_cleanup (free_current_contents, &name); |
fb40c209 AC |
62 | |
63 | frame = xstrdup (argv[1]); | |
b8c9b27d | 64 | old_cleanups = make_cleanup (xfree, frame); |
fb40c209 AC |
65 | |
66 | expr = xstrdup (argv[2]); | |
67 | ||
68 | if (strcmp (name, "-") == 0) | |
69 | { | |
b8c9b27d | 70 | xfree (name); |
fb40c209 AC |
71 | name = varobj_gen_name (); |
72 | } | |
73 | else if (!isalpha (*name)) | |
74 | error ("mi_cmd_var_create: name of object must begin with a letter"); | |
75 | ||
76 | if (strcmp (frame, "*") == 0) | |
73a93a32 JI |
77 | var_type = USE_CURRENT_FRAME; |
78 | else if (strcmp (frame, "@") == 0) | |
79 | var_type = USE_SELECTED_FRAME; | |
fb40c209 | 80 | else |
73a93a32 JI |
81 | { |
82 | var_type = USE_SPECIFIED_FRAME; | |
83 | frameaddr = parse_and_eval_address (frame); | |
84 | } | |
fb40c209 AC |
85 | |
86 | if (varobjdebug) | |
87 | fprintf_unfiltered (gdb_stdlog, | |
88 | "Name=\"%s\", Frame=\"%s\" (0x%s), Expression=\"%s\"\n", | |
89 | name, frame, paddr (frameaddr), expr); | |
90 | ||
73a93a32 | 91 | var = varobj_create (name, expr, frameaddr, var_type); |
fb40c209 AC |
92 | |
93 | if (var == NULL) | |
94 | error ("mi_cmd_var_create: unable to create variable object"); | |
95 | ||
96 | ui_out_field_string (uiout, "name", name); | |
97 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); | |
98 | type = varobj_get_type (var); | |
99 | if (type == NULL) | |
100 | ui_out_field_string (uiout, "type", ""); | |
101 | else | |
102 | { | |
103 | ui_out_field_string (uiout, "type", type); | |
b8c9b27d | 104 | xfree (type); |
fb40c209 AC |
105 | } |
106 | ||
107 | do_cleanups (old_cleanups); | |
108 | return MI_CMD_DONE; | |
109 | } | |
110 | ||
111 | enum mi_cmd_result | |
112 | mi_cmd_var_delete (char *command, char **argv, int argc) | |
113 | { | |
114 | char *name; | |
115 | char *expr; | |
116 | struct varobj *var; | |
117 | int numdel; | |
118 | int children_only_p = 0; | |
119 | struct cleanup *old_cleanups; | |
120 | ||
121 | if (argc < 1 || argc > 2) | |
122 | error ("mi_cmd_var_delete: Usage: [-c] EXPRESSION."); | |
123 | ||
124 | name = xstrdup (argv[0]); | |
125 | /* Add cleanup for name. Must be free_current_contents as | |
126 | name can be reallocated */ | |
47cf603e | 127 | old_cleanups = make_cleanup (free_current_contents, &name); |
fb40c209 AC |
128 | |
129 | /* If we have one single argument it cannot be '-c' or any string | |
130 | starting with '-'. */ | |
131 | if (argc == 1) | |
132 | { | |
133 | if (strcmp (name, "-c") == 0) | |
134 | error ("mi_cmd_var_delete: Missing required argument after '-c': variable object name"); | |
135 | if (*name == '-') | |
136 | error ("mi_cmd_var_delete: Illegal variable object name"); | |
137 | } | |
138 | ||
139 | /* If we have 2 arguments they must be '-c' followed by a string | |
140 | which would be the variable name. */ | |
141 | if (argc == 2) | |
142 | { | |
143 | expr = xstrdup (argv[1]); | |
144 | if (strcmp (name, "-c") != 0) | |
145 | error ("mi_cmd_var_delete: Invalid option."); | |
146 | children_only_p = 1; | |
b8c9b27d | 147 | xfree (name); |
fb40c209 | 148 | name = xstrdup (expr); |
b8c9b27d | 149 | xfree (expr); |
fb40c209 AC |
150 | } |
151 | ||
152 | /* If we didn't error out, now NAME contains the name of the | |
153 | variable. */ | |
154 | ||
155 | var = varobj_get_handle (name); | |
156 | ||
157 | if (var == NULL) | |
158 | error ("mi_cmd_var_delete: Variable object not found."); | |
159 | ||
160 | numdel = varobj_delete (var, NULL, children_only_p); | |
161 | ||
162 | ui_out_field_int (uiout, "ndeleted", numdel); | |
163 | ||
164 | do_cleanups (old_cleanups); | |
165 | return MI_CMD_DONE; | |
166 | } | |
167 | ||
168 | enum mi_cmd_result | |
169 | mi_cmd_var_set_format (char *command, char **argv, int argc) | |
170 | { | |
171 | enum varobj_display_formats format; | |
172 | int len; | |
173 | struct varobj *var; | |
174 | char *formspec; | |
175 | ||
176 | if (argc != 2) | |
177 | error ("mi_cmd_var_set_format: Usage: NAME FORMAT."); | |
178 | ||
179 | /* Get varobj handle, if a valid var obj name was specified */ | |
180 | var = varobj_get_handle (argv[0]); | |
181 | ||
182 | if (var == NULL) | |
183 | error ("mi_cmd_var_set_format: Variable object not found"); | |
184 | ||
185 | formspec = xstrdup (argv[1]); | |
186 | if (formspec == NULL) | |
187 | error ("mi_cmd_var_set_format: Must specify the format as: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); | |
188 | ||
189 | len = strlen (formspec); | |
190 | ||
191 | if (STREQN (formspec, "natural", len)) | |
192 | format = FORMAT_NATURAL; | |
193 | else if (STREQN (formspec, "binary", len)) | |
194 | format = FORMAT_BINARY; | |
195 | else if (STREQN (formspec, "decimal", len)) | |
196 | format = FORMAT_DECIMAL; | |
197 | else if (STREQN (formspec, "hexadecimal", len)) | |
198 | format = FORMAT_HEXADECIMAL; | |
199 | else if (STREQN (formspec, "octal", len)) | |
200 | format = FORMAT_OCTAL; | |
201 | else | |
202 | error ("mi_cmd_var_set_format: Unknown display format: must be: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); | |
203 | ||
204 | /* Set the format of VAR to given format */ | |
205 | varobj_set_display_format (var, format); | |
206 | ||
207 | /* Report the new current format */ | |
208 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); | |
209 | return MI_CMD_DONE; | |
210 | } | |
211 | ||
212 | enum mi_cmd_result | |
213 | mi_cmd_var_show_format (char *command, char **argv, int argc) | |
214 | { | |
215 | enum varobj_display_formats format; | |
216 | struct varobj *var; | |
217 | ||
218 | if (argc != 1) | |
219 | error ("mi_cmd_var_show_format: Usage: NAME."); | |
220 | ||
221 | /* Get varobj handle, if a valid var obj name was specified */ | |
222 | var = varobj_get_handle (argv[0]); | |
223 | if (var == NULL) | |
224 | error ("mi_cmd_var_show_format: Variable object not found"); | |
225 | ||
226 | format = varobj_get_display_format (var); | |
227 | ||
228 | /* Report the current format */ | |
229 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); | |
230 | return MI_CMD_DONE; | |
231 | } | |
232 | ||
233 | enum mi_cmd_result | |
234 | mi_cmd_var_info_num_children (char *command, char **argv, int argc) | |
235 | { | |
236 | struct varobj *var; | |
237 | ||
238 | if (argc != 1) | |
239 | error ("mi_cmd_var_info_num_children: Usage: NAME."); | |
240 | ||
241 | /* Get varobj handle, if a valid var obj name was specified */ | |
242 | var = varobj_get_handle (argv[0]); | |
243 | if (var == NULL) | |
244 | error ("mi_cmd_var_info_num_children: Variable object not found"); | |
245 | ||
246 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); | |
247 | return MI_CMD_DONE; | |
248 | } | |
249 | ||
250 | enum mi_cmd_result | |
251 | mi_cmd_var_list_children (char *command, char **argv, int argc) | |
252 | { | |
253 | struct varobj *var; | |
254 | struct varobj **childlist; | |
255 | struct varobj **cc; | |
256 | int numchild; | |
257 | char *type; | |
258 | ||
259 | if (argc != 1) | |
260 | error ("mi_cmd_var_list_children: Usage: NAME."); | |
261 | ||
262 | /* Get varobj handle, if a valid var obj name was specified */ | |
263 | var = varobj_get_handle (argv[0]); | |
264 | if (var == NULL) | |
265 | error ("mi_cmd_var_list_children: Variable object not found"); | |
266 | ||
267 | numchild = varobj_list_children (var, &childlist); | |
268 | ui_out_field_int (uiout, "numchild", numchild); | |
269 | ||
270 | if (numchild <= 0) | |
271 | return MI_CMD_DONE; | |
272 | ||
666547aa | 273 | ui_out_tuple_begin (uiout, "children"); |
fb40c209 AC |
274 | cc = childlist; |
275 | while (*cc != NULL) | |
276 | { | |
666547aa | 277 | ui_out_tuple_begin (uiout, "child"); |
fb40c209 AC |
278 | ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); |
279 | ui_out_field_string (uiout, "exp", varobj_get_expression (*cc)); | |
280 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (*cc)); | |
281 | type = varobj_get_type (*cc); | |
282 | /* C++ pseudo-variables (public, private, protected) do not have a type */ | |
283 | if (type) | |
284 | ui_out_field_string (uiout, "type", varobj_get_type (*cc)); | |
666547aa | 285 | ui_out_tuple_end (uiout); |
fb40c209 AC |
286 | cc++; |
287 | } | |
666547aa | 288 | ui_out_tuple_end (uiout); |
b8c9b27d | 289 | xfree (childlist); |
fb40c209 AC |
290 | return MI_CMD_DONE; |
291 | } | |
292 | ||
293 | enum mi_cmd_result | |
294 | mi_cmd_var_info_type (char *command, char **argv, int argc) | |
295 | { | |
296 | struct varobj *var; | |
297 | ||
298 | if (argc != 1) | |
299 | error ("mi_cmd_var_info_type: Usage: NAME."); | |
300 | ||
301 | /* Get varobj handle, if a valid var obj name was specified */ | |
302 | var = varobj_get_handle (argv[0]); | |
303 | if (var == NULL) | |
304 | error ("mi_cmd_var_info_type: Variable object not found"); | |
305 | ||
306 | ui_out_field_string (uiout, "type", varobj_get_type (var)); | |
307 | return MI_CMD_DONE; | |
308 | } | |
309 | ||
310 | enum mi_cmd_result | |
311 | mi_cmd_var_info_expression (char *command, char **argv, int argc) | |
312 | { | |
313 | enum varobj_languages lang; | |
314 | struct varobj *var; | |
315 | ||
316 | if (argc != 1) | |
317 | error ("mi_cmd_var_info_expression: Usage: NAME."); | |
318 | ||
319 | /* Get varobj handle, if a valid var obj name was specified */ | |
320 | var = varobj_get_handle (argv[0]); | |
321 | if (var == NULL) | |
322 | error ("mi_cmd_var_info_expression: Variable object not found"); | |
323 | ||
324 | lang = varobj_get_language (var); | |
325 | ||
326 | ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]); | |
327 | ui_out_field_string (uiout, "exp", varobj_get_expression (var)); | |
328 | return MI_CMD_DONE; | |
329 | } | |
330 | ||
331 | enum mi_cmd_result | |
332 | mi_cmd_var_show_attributes (char *command, char **argv, int argc) | |
333 | { | |
334 | int attr; | |
335 | char *attstr; | |
336 | struct varobj *var; | |
337 | ||
338 | if (argc != 1) | |
339 | error ("mi_cmd_var_show_attributes: Usage: NAME."); | |
340 | ||
341 | /* Get varobj handle, if a valid var obj name was specified */ | |
342 | var = varobj_get_handle (argv[0]); | |
343 | if (var == NULL) | |
344 | error ("mi_cmd_var_show_attributes: Variable object not found"); | |
345 | ||
346 | attr = varobj_get_attributes (var); | |
347 | /* FIXME: define masks for attributes */ | |
348 | if (attr & 0x00000001) | |
349 | attstr = "editable"; | |
350 | else | |
351 | attstr = "noneditable"; | |
352 | ||
353 | ui_out_field_string (uiout, "attr", attstr); | |
354 | return MI_CMD_DONE; | |
355 | } | |
356 | ||
357 | enum mi_cmd_result | |
358 | mi_cmd_var_evaluate_expression (char *command, char **argv, int argc) | |
359 | { | |
360 | struct varobj *var; | |
361 | ||
362 | if (argc != 1) | |
363 | error ("mi_cmd_var_evaluate_expression: Usage: NAME."); | |
364 | ||
365 | /* Get varobj handle, if a valid var obj name was specified */ | |
366 | var = varobj_get_handle (argv[0]); | |
367 | if (var == NULL) | |
368 | error ("mi_cmd_var_evaluate_expression: Variable object not found"); | |
369 | ||
370 | ui_out_field_string (uiout, "value", varobj_get_value (var)); | |
371 | return MI_CMD_DONE; | |
372 | } | |
373 | ||
374 | enum mi_cmd_result | |
375 | mi_cmd_var_assign (char *command, char **argv, int argc) | |
376 | { | |
377 | struct varobj *var; | |
378 | char *expression; | |
379 | ||
380 | if (argc != 2) | |
381 | error ("mi_cmd_var_assign: Usage: NAME EXPRESSION."); | |
382 | ||
383 | /* Get varobj handle, if a valid var obj name was specified */ | |
384 | var = varobj_get_handle (argv[0]); | |
385 | if (var == NULL) | |
386 | error ("mi_cmd_var_assign: Variable object not found"); | |
387 | ||
388 | /* FIXME: define masks for attributes */ | |
389 | if (!(varobj_get_attributes (var) & 0x00000001)) | |
390 | error ("mi_cmd_var_assign: Variable object is not editable"); | |
391 | ||
392 | expression = xstrdup (argv[1]); | |
393 | ||
394 | if (!varobj_set_value (var, expression)) | |
395 | error ("mi_cmd_var_assign: Could not assign expression to varible object"); | |
396 | ||
397 | ui_out_field_string (uiout, "value", varobj_get_value (var)); | |
398 | return MI_CMD_DONE; | |
399 | } | |
400 | ||
401 | enum mi_cmd_result | |
402 | mi_cmd_var_update (char *command, char **argv, int argc) | |
403 | { | |
404 | struct varobj *var; | |
405 | struct varobj **rootlist; | |
406 | struct varobj **cr; | |
407 | char *name; | |
408 | int nv; | |
409 | ||
410 | if (argc != 1) | |
411 | error ("mi_cmd_var_update: Usage: NAME."); | |
412 | ||
413 | name = argv[0]; | |
414 | ||
415 | /* Check if the parameter is a "*" which means that we want | |
416 | to update all variables */ | |
417 | ||
418 | if ((*name == '*') && (*(name + 1) == '\0')) | |
419 | { | |
420 | nv = varobj_list (&rootlist); | |
666547aa | 421 | ui_out_tuple_begin (uiout, "changelist"); |
fb40c209 AC |
422 | if (nv <= 0) |
423 | { | |
666547aa | 424 | ui_out_tuple_end (uiout); |
fb40c209 AC |
425 | return MI_CMD_DONE; |
426 | } | |
427 | cr = rootlist; | |
428 | while (*cr != NULL) | |
429 | { | |
430 | varobj_update_one (*cr); | |
431 | cr++; | |
432 | } | |
b8c9b27d | 433 | xfree (rootlist); |
666547aa | 434 | ui_out_tuple_end (uiout); |
fb40c209 AC |
435 | } |
436 | else | |
437 | { | |
438 | /* Get varobj handle, if a valid var obj name was specified */ | |
439 | var = varobj_get_handle (name); | |
440 | if (var == NULL) | |
441 | error ("mi_cmd_var_update: Variable object not found"); | |
442 | ||
666547aa | 443 | ui_out_tuple_begin (uiout, "changelist"); |
fb40c209 | 444 | varobj_update_one (var); |
666547aa | 445 | ui_out_tuple_end (uiout); |
fb40c209 | 446 | } |
73a93a32 | 447 | return MI_CMD_DONE; |
fb40c209 AC |
448 | } |
449 | ||
73a93a32 JI |
450 | /* Helper for mi_cmd_var_update() Returns 0 if the update for |
451 | the variable fails (usually because the variable is out of | |
452 | scope), and 1 if it succeeds. */ | |
fb40c209 | 453 | |
73a93a32 | 454 | static int |
fb40c209 AC |
455 | varobj_update_one (struct varobj *var) |
456 | { | |
457 | struct varobj **changelist; | |
458 | struct varobj **cc; | |
459 | int nc; | |
460 | ||
4309c8f2 | 461 | nc = varobj_update (&var, &changelist); |
fb40c209 | 462 | |
73a93a32 JI |
463 | /* nc == 0 means that nothing has changed. |
464 | nc == -1 means that an error occured in updating the variable. | |
465 | nc == -2 means the variable has changed type. */ | |
466 | ||
467 | if (nc == 0) | |
468 | return 1; | |
469 | else if (nc == -1) | |
fb40c209 | 470 | { |
73a93a32 JI |
471 | ui_out_field_string (uiout, "name", varobj_get_objname(var)); |
472 | ui_out_field_string (uiout, "in_scope", "false"); | |
473 | return -1; | |
474 | } | |
475 | else if (nc == -2) | |
476 | { | |
477 | ui_out_field_string (uiout, "name", varobj_get_objname (var)); | |
478 | ui_out_field_string (uiout, "in_scope", "true"); | |
479 | ui_out_field_string (uiout, "new_type", varobj_get_type(var)); | |
480 | ui_out_field_int (uiout, "new_num_children", | |
481 | varobj_get_num_children(var)); | |
482 | } | |
483 | else | |
484 | { | |
485 | ||
486 | cc = changelist; | |
487 | while (*cc != NULL) | |
488 | { | |
489 | ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); | |
490 | ui_out_field_string (uiout, "in_scope", "true"); | |
491 | ui_out_field_string (uiout, "type_changed", "false"); | |
492 | cc++; | |
493 | } | |
b8c9b27d | 494 | xfree (changelist); |
73a93a32 | 495 | return 1; |
fb40c209 | 496 | } |
73a93a32 | 497 | return 1; |
fb40c209 | 498 | } |