Commit | Line | Data |
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fb40c209 AC |
1 | /* MI Command Set - varobj commands. |
2 | Copyright (C) 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 | { | |
55 | /* asprintf (&mi_error_message, | |
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 */ | |
64 | old_cleanups = make_cleanup ((make_cleanup_func) free_current_contents, | |
65 | &name); | |
66 | ||
67 | frame = xstrdup (argv[1]); | |
68 | old_cleanups = make_cleanup (free, frame); | |
69 | ||
70 | expr = xstrdup (argv[2]); | |
71 | ||
72 | if (strcmp (name, "-") == 0) | |
73 | { | |
74 | free (name); | |
75 | name = varobj_gen_name (); | |
76 | } | |
77 | else if (!isalpha (*name)) | |
78 | error ("mi_cmd_var_create: name of object must begin with a letter"); | |
79 | ||
80 | if (strcmp (frame, "*") == 0) | |
73a93a32 JI |
81 | var_type = USE_CURRENT_FRAME; |
82 | else if (strcmp (frame, "@") == 0) | |
83 | var_type = USE_SELECTED_FRAME; | |
fb40c209 | 84 | else |
73a93a32 JI |
85 | { |
86 | var_type = USE_SPECIFIED_FRAME; | |
87 | frameaddr = parse_and_eval_address (frame); | |
88 | } | |
fb40c209 AC |
89 | |
90 | if (varobjdebug) | |
91 | fprintf_unfiltered (gdb_stdlog, | |
92 | "Name=\"%s\", Frame=\"%s\" (0x%s), Expression=\"%s\"\n", | |
93 | name, frame, paddr (frameaddr), expr); | |
94 | ||
73a93a32 | 95 | var = varobj_create (name, expr, frameaddr, var_type); |
fb40c209 AC |
96 | |
97 | if (var == NULL) | |
98 | error ("mi_cmd_var_create: unable to create variable object"); | |
99 | ||
100 | ui_out_field_string (uiout, "name", name); | |
101 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); | |
102 | type = varobj_get_type (var); | |
103 | if (type == NULL) | |
104 | ui_out_field_string (uiout, "type", ""); | |
105 | else | |
106 | { | |
107 | ui_out_field_string (uiout, "type", type); | |
108 | free (type); | |
109 | } | |
110 | ||
111 | do_cleanups (old_cleanups); | |
112 | return MI_CMD_DONE; | |
113 | } | |
114 | ||
115 | enum mi_cmd_result | |
116 | mi_cmd_var_delete (char *command, char **argv, int argc) | |
117 | { | |
118 | char *name; | |
119 | char *expr; | |
120 | struct varobj *var; | |
121 | int numdel; | |
122 | int children_only_p = 0; | |
123 | struct cleanup *old_cleanups; | |
124 | ||
125 | if (argc < 1 || argc > 2) | |
126 | error ("mi_cmd_var_delete: Usage: [-c] EXPRESSION."); | |
127 | ||
128 | name = xstrdup (argv[0]); | |
129 | /* Add cleanup for name. Must be free_current_contents as | |
130 | name can be reallocated */ | |
131 | old_cleanups = make_cleanup ((make_cleanup_func) free_current_contents, | |
132 | &name); | |
133 | ||
134 | /* If we have one single argument it cannot be '-c' or any string | |
135 | starting with '-'. */ | |
136 | if (argc == 1) | |
137 | { | |
138 | if (strcmp (name, "-c") == 0) | |
139 | error ("mi_cmd_var_delete: Missing required argument after '-c': variable object name"); | |
140 | if (*name == '-') | |
141 | error ("mi_cmd_var_delete: Illegal variable object name"); | |
142 | } | |
143 | ||
144 | /* If we have 2 arguments they must be '-c' followed by a string | |
145 | which would be the variable name. */ | |
146 | if (argc == 2) | |
147 | { | |
148 | expr = xstrdup (argv[1]); | |
149 | if (strcmp (name, "-c") != 0) | |
150 | error ("mi_cmd_var_delete: Invalid option."); | |
151 | children_only_p = 1; | |
152 | free (name); | |
153 | name = xstrdup (expr); | |
154 | free (expr); | |
155 | } | |
156 | ||
157 | /* If we didn't error out, now NAME contains the name of the | |
158 | variable. */ | |
159 | ||
160 | var = varobj_get_handle (name); | |
161 | ||
162 | if (var == NULL) | |
163 | error ("mi_cmd_var_delete: Variable object not found."); | |
164 | ||
165 | numdel = varobj_delete (var, NULL, children_only_p); | |
166 | ||
167 | ui_out_field_int (uiout, "ndeleted", numdel); | |
168 | ||
169 | do_cleanups (old_cleanups); | |
170 | return MI_CMD_DONE; | |
171 | } | |
172 | ||
173 | enum mi_cmd_result | |
174 | mi_cmd_var_set_format (char *command, char **argv, int argc) | |
175 | { | |
176 | enum varobj_display_formats format; | |
177 | int len; | |
178 | struct varobj *var; | |
179 | char *formspec; | |
180 | ||
181 | if (argc != 2) | |
182 | error ("mi_cmd_var_set_format: Usage: NAME FORMAT."); | |
183 | ||
184 | /* Get varobj handle, if a valid var obj name was specified */ | |
185 | var = varobj_get_handle (argv[0]); | |
186 | ||
187 | if (var == NULL) | |
188 | error ("mi_cmd_var_set_format: Variable object not found"); | |
189 | ||
190 | formspec = xstrdup (argv[1]); | |
191 | if (formspec == NULL) | |
192 | error ("mi_cmd_var_set_format: Must specify the format as: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); | |
193 | ||
194 | len = strlen (formspec); | |
195 | ||
196 | if (STREQN (formspec, "natural", len)) | |
197 | format = FORMAT_NATURAL; | |
198 | else if (STREQN (formspec, "binary", len)) | |
199 | format = FORMAT_BINARY; | |
200 | else if (STREQN (formspec, "decimal", len)) | |
201 | format = FORMAT_DECIMAL; | |
202 | else if (STREQN (formspec, "hexadecimal", len)) | |
203 | format = FORMAT_HEXADECIMAL; | |
204 | else if (STREQN (formspec, "octal", len)) | |
205 | format = FORMAT_OCTAL; | |
206 | else | |
207 | error ("mi_cmd_var_set_format: Unknown display format: must be: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); | |
208 | ||
209 | /* Set the format of VAR to given format */ | |
210 | varobj_set_display_format (var, format); | |
211 | ||
212 | /* Report the new current format */ | |
213 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); | |
214 | return MI_CMD_DONE; | |
215 | } | |
216 | ||
217 | enum mi_cmd_result | |
218 | mi_cmd_var_show_format (char *command, char **argv, int argc) | |
219 | { | |
220 | enum varobj_display_formats format; | |
221 | struct varobj *var; | |
222 | ||
223 | if (argc != 1) | |
224 | error ("mi_cmd_var_show_format: Usage: NAME."); | |
225 | ||
226 | /* Get varobj handle, if a valid var obj name was specified */ | |
227 | var = varobj_get_handle (argv[0]); | |
228 | if (var == NULL) | |
229 | error ("mi_cmd_var_show_format: Variable object not found"); | |
230 | ||
231 | format = varobj_get_display_format (var); | |
232 | ||
233 | /* Report the current format */ | |
234 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); | |
235 | return MI_CMD_DONE; | |
236 | } | |
237 | ||
238 | enum mi_cmd_result | |
239 | mi_cmd_var_info_num_children (char *command, char **argv, int argc) | |
240 | { | |
241 | struct varobj *var; | |
242 | ||
243 | if (argc != 1) | |
244 | error ("mi_cmd_var_info_num_children: Usage: NAME."); | |
245 | ||
246 | /* Get varobj handle, if a valid var obj name was specified */ | |
247 | var = varobj_get_handle (argv[0]); | |
248 | if (var == NULL) | |
249 | error ("mi_cmd_var_info_num_children: Variable object not found"); | |
250 | ||
251 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); | |
252 | return MI_CMD_DONE; | |
253 | } | |
254 | ||
255 | enum mi_cmd_result | |
256 | mi_cmd_var_list_children (char *command, char **argv, int argc) | |
257 | { | |
258 | struct varobj *var; | |
259 | struct varobj **childlist; | |
260 | struct varobj **cc; | |
261 | int numchild; | |
262 | char *type; | |
263 | ||
264 | if (argc != 1) | |
265 | error ("mi_cmd_var_list_children: Usage: NAME."); | |
266 | ||
267 | /* Get varobj handle, if a valid var obj name was specified */ | |
268 | var = varobj_get_handle (argv[0]); | |
269 | if (var == NULL) | |
270 | error ("mi_cmd_var_list_children: Variable object not found"); | |
271 | ||
272 | numchild = varobj_list_children (var, &childlist); | |
273 | ui_out_field_int (uiout, "numchild", numchild); | |
274 | ||
275 | if (numchild <= 0) | |
276 | return MI_CMD_DONE; | |
277 | ||
278 | ui_out_list_begin (uiout, "children"); | |
279 | cc = childlist; | |
280 | while (*cc != NULL) | |
281 | { | |
282 | ui_out_list_begin (uiout, "child"); | |
283 | ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); | |
284 | ui_out_field_string (uiout, "exp", varobj_get_expression (*cc)); | |
285 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (*cc)); | |
286 | type = varobj_get_type (*cc); | |
287 | /* C++ pseudo-variables (public, private, protected) do not have a type */ | |
288 | if (type) | |
289 | ui_out_field_string (uiout, "type", varobj_get_type (*cc)); | |
290 | ui_out_list_end (uiout); | |
291 | cc++; | |
292 | } | |
293 | ui_out_list_end (uiout); | |
294 | free (childlist); | |
295 | return MI_CMD_DONE; | |
296 | } | |
297 | ||
298 | enum mi_cmd_result | |
299 | mi_cmd_var_info_type (char *command, char **argv, int argc) | |
300 | { | |
301 | struct varobj *var; | |
302 | ||
303 | if (argc != 1) | |
304 | error ("mi_cmd_var_info_type: Usage: NAME."); | |
305 | ||
306 | /* Get varobj handle, if a valid var obj name was specified */ | |
307 | var = varobj_get_handle (argv[0]); | |
308 | if (var == NULL) | |
309 | error ("mi_cmd_var_info_type: Variable object not found"); | |
310 | ||
311 | ui_out_field_string (uiout, "type", varobj_get_type (var)); | |
312 | return MI_CMD_DONE; | |
313 | } | |
314 | ||
315 | enum mi_cmd_result | |
316 | mi_cmd_var_info_expression (char *command, char **argv, int argc) | |
317 | { | |
318 | enum varobj_languages lang; | |
319 | struct varobj *var; | |
320 | ||
321 | if (argc != 1) | |
322 | error ("mi_cmd_var_info_expression: Usage: NAME."); | |
323 | ||
324 | /* Get varobj handle, if a valid var obj name was specified */ | |
325 | var = varobj_get_handle (argv[0]); | |
326 | if (var == NULL) | |
327 | error ("mi_cmd_var_info_expression: Variable object not found"); | |
328 | ||
329 | lang = varobj_get_language (var); | |
330 | ||
331 | ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]); | |
332 | ui_out_field_string (uiout, "exp", varobj_get_expression (var)); | |
333 | return MI_CMD_DONE; | |
334 | } | |
335 | ||
336 | enum mi_cmd_result | |
337 | mi_cmd_var_show_attributes (char *command, char **argv, int argc) | |
338 | { | |
339 | int attr; | |
340 | char *attstr; | |
341 | struct varobj *var; | |
342 | ||
343 | if (argc != 1) | |
344 | error ("mi_cmd_var_show_attributes: Usage: NAME."); | |
345 | ||
346 | /* Get varobj handle, if a valid var obj name was specified */ | |
347 | var = varobj_get_handle (argv[0]); | |
348 | if (var == NULL) | |
349 | error ("mi_cmd_var_show_attributes: Variable object not found"); | |
350 | ||
351 | attr = varobj_get_attributes (var); | |
352 | /* FIXME: define masks for attributes */ | |
353 | if (attr & 0x00000001) | |
354 | attstr = "editable"; | |
355 | else | |
356 | attstr = "noneditable"; | |
357 | ||
358 | ui_out_field_string (uiout, "attr", attstr); | |
359 | return MI_CMD_DONE; | |
360 | } | |
361 | ||
362 | enum mi_cmd_result | |
363 | mi_cmd_var_evaluate_expression (char *command, char **argv, int argc) | |
364 | { | |
365 | struct varobj *var; | |
366 | ||
367 | if (argc != 1) | |
368 | error ("mi_cmd_var_evaluate_expression: Usage: NAME."); | |
369 | ||
370 | /* Get varobj handle, if a valid var obj name was specified */ | |
371 | var = varobj_get_handle (argv[0]); | |
372 | if (var == NULL) | |
373 | error ("mi_cmd_var_evaluate_expression: Variable object not found"); | |
374 | ||
375 | ui_out_field_string (uiout, "value", varobj_get_value (var)); | |
376 | return MI_CMD_DONE; | |
377 | } | |
378 | ||
379 | enum mi_cmd_result | |
380 | mi_cmd_var_assign (char *command, char **argv, int argc) | |
381 | { | |
382 | struct varobj *var; | |
383 | char *expression; | |
384 | ||
385 | if (argc != 2) | |
386 | error ("mi_cmd_var_assign: Usage: NAME EXPRESSION."); | |
387 | ||
388 | /* Get varobj handle, if a valid var obj name was specified */ | |
389 | var = varobj_get_handle (argv[0]); | |
390 | if (var == NULL) | |
391 | error ("mi_cmd_var_assign: Variable object not found"); | |
392 | ||
393 | /* FIXME: define masks for attributes */ | |
394 | if (!(varobj_get_attributes (var) & 0x00000001)) | |
395 | error ("mi_cmd_var_assign: Variable object is not editable"); | |
396 | ||
397 | expression = xstrdup (argv[1]); | |
398 | ||
399 | if (!varobj_set_value (var, expression)) | |
400 | error ("mi_cmd_var_assign: Could not assign expression to varible object"); | |
401 | ||
402 | ui_out_field_string (uiout, "value", varobj_get_value (var)); | |
403 | return MI_CMD_DONE; | |
404 | } | |
405 | ||
406 | enum mi_cmd_result | |
407 | mi_cmd_var_update (char *command, char **argv, int argc) | |
408 | { | |
409 | struct varobj *var; | |
410 | struct varobj **rootlist; | |
411 | struct varobj **cr; | |
412 | char *name; | |
413 | int nv; | |
414 | ||
415 | if (argc != 1) | |
416 | error ("mi_cmd_var_update: Usage: NAME."); | |
417 | ||
418 | name = argv[0]; | |
419 | ||
420 | /* Check if the parameter is a "*" which means that we want | |
421 | to update all variables */ | |
422 | ||
423 | if ((*name == '*') && (*(name + 1) == '\0')) | |
424 | { | |
425 | nv = varobj_list (&rootlist); | |
426 | ui_out_list_begin (uiout, "changelist"); | |
427 | if (nv <= 0) | |
428 | { | |
429 | ui_out_list_end (uiout); | |
430 | return MI_CMD_DONE; | |
431 | } | |
432 | cr = rootlist; | |
433 | while (*cr != NULL) | |
434 | { | |
435 | varobj_update_one (*cr); | |
436 | cr++; | |
437 | } | |
438 | free (rootlist); | |
439 | ui_out_list_end (uiout); | |
440 | } | |
441 | else | |
442 | { | |
443 | /* Get varobj handle, if a valid var obj name was specified */ | |
444 | var = varobj_get_handle (name); | |
445 | if (var == NULL) | |
446 | error ("mi_cmd_var_update: Variable object not found"); | |
447 | ||
448 | ui_out_list_begin (uiout, "changelist"); | |
449 | varobj_update_one (var); | |
450 | ui_out_list_end (uiout); | |
451 | } | |
73a93a32 | 452 | return MI_CMD_DONE; |
fb40c209 AC |
453 | } |
454 | ||
73a93a32 JI |
455 | /* Helper for mi_cmd_var_update() Returns 0 if the update for |
456 | the variable fails (usually because the variable is out of | |
457 | scope), and 1 if it succeeds. */ | |
fb40c209 | 458 | |
73a93a32 | 459 | static int |
fb40c209 AC |
460 | varobj_update_one (struct varobj *var) |
461 | { | |
462 | struct varobj **changelist; | |
463 | struct varobj **cc; | |
464 | int nc; | |
465 | ||
466 | nc = varobj_update (var, &changelist); | |
467 | ||
73a93a32 JI |
468 | /* nc == 0 means that nothing has changed. |
469 | nc == -1 means that an error occured in updating the variable. | |
470 | nc == -2 means the variable has changed type. */ | |
471 | ||
472 | if (nc == 0) | |
473 | return 1; | |
474 | else if (nc == -1) | |
fb40c209 | 475 | { |
73a93a32 JI |
476 | ui_out_field_string (uiout, "name", varobj_get_objname(var)); |
477 | ui_out_field_string (uiout, "in_scope", "false"); | |
478 | return -1; | |
479 | } | |
480 | else if (nc == -2) | |
481 | { | |
482 | ui_out_field_string (uiout, "name", varobj_get_objname (var)); | |
483 | ui_out_field_string (uiout, "in_scope", "true"); | |
484 | ui_out_field_string (uiout, "new_type", varobj_get_type(var)); | |
485 | ui_out_field_int (uiout, "new_num_children", | |
486 | varobj_get_num_children(var)); | |
487 | } | |
488 | else | |
489 | { | |
490 | ||
491 | cc = changelist; | |
492 | while (*cc != NULL) | |
493 | { | |
494 | ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); | |
495 | ui_out_field_string (uiout, "in_scope", "true"); | |
496 | ui_out_field_string (uiout, "type_changed", "false"); | |
497 | cc++; | |
498 | } | |
499 | free (changelist); | |
500 | return 1; | |
fb40c209 | 501 | } |
73a93a32 | 502 | return 1; |
fb40c209 AC |
503 | } |
504 | ||
505 | /* Local variables: */ | |
506 | /* change-log-default-name: "ChangeLog-mi" */ | |
507 | /* End: */ |