1 /* MI Command Set - varobj commands.
2 Copyright (C) 2000, Free Software Foundation, Inc.
3 Contributed by Cygnus Solutions (a Red Hat company).
5 This file is part of GDB.
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.
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.
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. */
30 /* Convenience macro for allocting typesafe memory. */
33 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
35 extern int varobjdebug; /* defined in varobj.c */
37 static int varobj_update_one (struct varobj *var);
39 /* VAROBJ operations */
42 mi_cmd_var_create (char *command, char **argv, int argc)
44 CORE_ADDR frameaddr = 0;
50 struct cleanup *old_cleanups;
51 enum varobj_type var_type;
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.");
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,
67 frame = xstrdup (argv[1]);
68 old_cleanups = make_cleanup (free, frame);
70 expr = xstrdup (argv[2]);
72 if (strcmp (name, "-") == 0)
75 name = varobj_gen_name ();
77 else if (!isalpha (*name))
78 error ("mi_cmd_var_create: name of object must begin with a letter");
80 if (strcmp (frame, "*") == 0)
81 var_type = USE_CURRENT_FRAME;
82 else if (strcmp (frame, "@") == 0)
83 var_type = USE_SELECTED_FRAME;
86 var_type = USE_SPECIFIED_FRAME;
87 frameaddr = parse_and_eval_address (frame);
91 fprintf_unfiltered (gdb_stdlog,
92 "Name=\"%s\", Frame=\"%s\" (0x%s), Expression=\"%s\"\n",
93 name, frame, paddr (frameaddr), expr);
95 var = varobj_create (name, expr, frameaddr, var_type);
98 error ("mi_cmd_var_create: unable to create variable object");
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);
104 ui_out_field_string (uiout, "type", "");
107 ui_out_field_string (uiout, "type", type);
111 do_cleanups (old_cleanups);
116 mi_cmd_var_delete (char *command, char **argv, int argc)
122 int children_only_p = 0;
123 struct cleanup *old_cleanups;
125 if (argc < 1 || argc > 2)
126 error ("mi_cmd_var_delete: Usage: [-c] EXPRESSION.");
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,
134 /* If we have one single argument it cannot be '-c' or any string
135 starting with '-'. */
138 if (strcmp (name, "-c") == 0)
139 error ("mi_cmd_var_delete: Missing required argument after '-c': variable object name");
141 error ("mi_cmd_var_delete: Illegal variable object name");
144 /* If we have 2 arguments they must be '-c' followed by a string
145 which would be the variable name. */
148 expr = xstrdup (argv[1]);
149 if (strcmp (name, "-c") != 0)
150 error ("mi_cmd_var_delete: Invalid option.");
153 name = xstrdup (expr);
157 /* If we didn't error out, now NAME contains the name of the
160 var = varobj_get_handle (name);
163 error ("mi_cmd_var_delete: Variable object not found.");
165 numdel = varobj_delete (var, NULL, children_only_p);
167 ui_out_field_int (uiout, "ndeleted", numdel);
169 do_cleanups (old_cleanups);
174 mi_cmd_var_set_format (char *command, char **argv, int argc)
176 enum varobj_display_formats format;
182 error ("mi_cmd_var_set_format: Usage: NAME FORMAT.");
184 /* Get varobj handle, if a valid var obj name was specified */
185 var = varobj_get_handle (argv[0]);
188 error ("mi_cmd_var_set_format: Variable object not found");
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\"");
194 len = strlen (formspec);
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;
207 error ("mi_cmd_var_set_format: Unknown display format: must be: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\"");
209 /* Set the format of VAR to given format */
210 varobj_set_display_format (var, format);
212 /* Report the new current format */
213 ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
218 mi_cmd_var_show_format (char *command, char **argv, int argc)
220 enum varobj_display_formats format;
224 error ("mi_cmd_var_show_format: Usage: NAME.");
226 /* Get varobj handle, if a valid var obj name was specified */
227 var = varobj_get_handle (argv[0]);
229 error ("mi_cmd_var_show_format: Variable object not found");
231 format = varobj_get_display_format (var);
233 /* Report the current format */
234 ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
239 mi_cmd_var_info_num_children (char *command, char **argv, int argc)
244 error ("mi_cmd_var_info_num_children: Usage: NAME.");
246 /* Get varobj handle, if a valid var obj name was specified */
247 var = varobj_get_handle (argv[0]);
249 error ("mi_cmd_var_info_num_children: Variable object not found");
251 ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
256 mi_cmd_var_list_children (char *command, char **argv, int argc)
259 struct varobj **childlist;
265 error ("mi_cmd_var_list_children: Usage: NAME.");
267 /* Get varobj handle, if a valid var obj name was specified */
268 var = varobj_get_handle (argv[0]);
270 error ("mi_cmd_var_list_children: Variable object not found");
272 numchild = varobj_list_children (var, &childlist);
273 ui_out_field_int (uiout, "numchild", numchild);
278 ui_out_list_begin (uiout, "children");
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 */
289 ui_out_field_string (uiout, "type", varobj_get_type (*cc));
290 ui_out_list_end (uiout);
293 ui_out_list_end (uiout);
299 mi_cmd_var_info_type (char *command, char **argv, int argc)
304 error ("mi_cmd_var_info_type: Usage: NAME.");
306 /* Get varobj handle, if a valid var obj name was specified */
307 var = varobj_get_handle (argv[0]);
309 error ("mi_cmd_var_info_type: Variable object not found");
311 ui_out_field_string (uiout, "type", varobj_get_type (var));
316 mi_cmd_var_info_expression (char *command, char **argv, int argc)
318 enum varobj_languages lang;
322 error ("mi_cmd_var_info_expression: Usage: NAME.");
324 /* Get varobj handle, if a valid var obj name was specified */
325 var = varobj_get_handle (argv[0]);
327 error ("mi_cmd_var_info_expression: Variable object not found");
329 lang = varobj_get_language (var);
331 ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]);
332 ui_out_field_string (uiout, "exp", varobj_get_expression (var));
337 mi_cmd_var_show_attributes (char *command, char **argv, int argc)
344 error ("mi_cmd_var_show_attributes: Usage: NAME.");
346 /* Get varobj handle, if a valid var obj name was specified */
347 var = varobj_get_handle (argv[0]);
349 error ("mi_cmd_var_show_attributes: Variable object not found");
351 attr = varobj_get_attributes (var);
352 /* FIXME: define masks for attributes */
353 if (attr & 0x00000001)
356 attstr = "noneditable";
358 ui_out_field_string (uiout, "attr", attstr);
363 mi_cmd_var_evaluate_expression (char *command, char **argv, int argc)
368 error ("mi_cmd_var_evaluate_expression: Usage: NAME.");
370 /* Get varobj handle, if a valid var obj name was specified */
371 var = varobj_get_handle (argv[0]);
373 error ("mi_cmd_var_evaluate_expression: Variable object not found");
375 ui_out_field_string (uiout, "value", varobj_get_value (var));
380 mi_cmd_var_assign (char *command, char **argv, int argc)
386 error ("mi_cmd_var_assign: Usage: NAME EXPRESSION.");
388 /* Get varobj handle, if a valid var obj name was specified */
389 var = varobj_get_handle (argv[0]);
391 error ("mi_cmd_var_assign: Variable object not found");
393 /* FIXME: define masks for attributes */
394 if (!(varobj_get_attributes (var) & 0x00000001))
395 error ("mi_cmd_var_assign: Variable object is not editable");
397 expression = xstrdup (argv[1]);
399 if (!varobj_set_value (var, expression))
400 error ("mi_cmd_var_assign: Could not assign expression to varible object");
402 ui_out_field_string (uiout, "value", varobj_get_value (var));
407 mi_cmd_var_update (char *command, char **argv, int argc)
410 struct varobj **rootlist;
416 error ("mi_cmd_var_update: Usage: NAME.");
420 /* Check if the parameter is a "*" which means that we want
421 to update all variables */
423 if ((*name == '*') && (*(name + 1) == '\0'))
425 nv = varobj_list (&rootlist);
426 ui_out_list_begin (uiout, "changelist");
429 ui_out_list_end (uiout);
435 varobj_update_one (*cr);
439 ui_out_list_end (uiout);
443 /* Get varobj handle, if a valid var obj name was specified */
444 var = varobj_get_handle (name);
446 error ("mi_cmd_var_update: Variable object not found");
448 ui_out_list_begin (uiout, "changelist");
449 varobj_update_one (var);
450 ui_out_list_end (uiout);
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. */
460 varobj_update_one (struct varobj *var)
462 struct varobj **changelist;
466 nc = varobj_update (var, &changelist);
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. */
476 ui_out_field_string (uiout, "name", varobj_get_objname(var));
477 ui_out_field_string (uiout, "in_scope", "false");
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));
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");
505 /* Local variables: */
506 /* change-log-default-name: "ChangeLog-mi" */