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 /* xasprintf (&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 (free_current_contents
, &name
);
66 frame
= xstrdup (argv
[1]);
67 old_cleanups
= make_cleanup (xfree
, frame
);
69 expr
= xstrdup (argv
[2]);
71 if (strcmp (name
, "-") == 0)
74 name
= varobj_gen_name ();
76 else if (!isalpha (*name
))
77 error ("mi_cmd_var_create: name of object must begin with a letter");
79 if (strcmp (frame
, "*") == 0)
80 var_type
= USE_CURRENT_FRAME
;
81 else if (strcmp (frame
, "@") == 0)
82 var_type
= USE_SELECTED_FRAME
;
85 var_type
= USE_SPECIFIED_FRAME
;
86 frameaddr
= parse_and_eval_address (frame
);
90 fprintf_unfiltered (gdb_stdlog
,
91 "Name=\"%s\", Frame=\"%s\" (0x%s), Expression=\"%s\"\n",
92 name
, frame
, paddr (frameaddr
), expr
);
94 var
= varobj_create (name
, expr
, frameaddr
, var_type
);
97 error ("mi_cmd_var_create: unable to create variable object");
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
);
103 ui_out_field_string (uiout
, "type", "");
106 ui_out_field_string (uiout
, "type", type
);
110 do_cleanups (old_cleanups
);
115 mi_cmd_var_delete (char *command
, char **argv
, int argc
)
121 int children_only_p
= 0;
122 struct cleanup
*old_cleanups
;
124 if (argc
< 1 || argc
> 2)
125 error ("mi_cmd_var_delete: Usage: [-c] EXPRESSION.");
127 name
= xstrdup (argv
[0]);
128 /* Add cleanup for name. Must be free_current_contents as
129 name can be reallocated */
130 old_cleanups
= make_cleanup (free_current_contents
, &name
);
132 /* If we have one single argument it cannot be '-c' or any string
133 starting with '-'. */
136 if (strcmp (name
, "-c") == 0)
137 error ("mi_cmd_var_delete: Missing required argument after '-c': variable object name");
139 error ("mi_cmd_var_delete: Illegal variable object name");
142 /* If we have 2 arguments they must be '-c' followed by a string
143 which would be the variable name. */
146 expr
= xstrdup (argv
[1]);
147 if (strcmp (name
, "-c") != 0)
148 error ("mi_cmd_var_delete: Invalid option.");
151 name
= xstrdup (expr
);
155 /* If we didn't error out, now NAME contains the name of the
158 var
= varobj_get_handle (name
);
161 error ("mi_cmd_var_delete: Variable object not found.");
163 numdel
= varobj_delete (var
, NULL
, children_only_p
);
165 ui_out_field_int (uiout
, "ndeleted", numdel
);
167 do_cleanups (old_cleanups
);
172 mi_cmd_var_set_format (char *command
, char **argv
, int argc
)
174 enum varobj_display_formats format
;
180 error ("mi_cmd_var_set_format: Usage: NAME FORMAT.");
182 /* Get varobj handle, if a valid var obj name was specified */
183 var
= varobj_get_handle (argv
[0]);
186 error ("mi_cmd_var_set_format: Variable object not found");
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\"");
192 len
= strlen (formspec
);
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
;
205 error ("mi_cmd_var_set_format: Unknown display format: must be: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\"");
207 /* Set the format of VAR to given format */
208 varobj_set_display_format (var
, format
);
210 /* Report the new current format */
211 ui_out_field_string (uiout
, "format", varobj_format_string
[(int) format
]);
216 mi_cmd_var_show_format (char *command
, char **argv
, int argc
)
218 enum varobj_display_formats format
;
222 error ("mi_cmd_var_show_format: Usage: NAME.");
224 /* Get varobj handle, if a valid var obj name was specified */
225 var
= varobj_get_handle (argv
[0]);
227 error ("mi_cmd_var_show_format: Variable object not found");
229 format
= varobj_get_display_format (var
);
231 /* Report the current format */
232 ui_out_field_string (uiout
, "format", varobj_format_string
[(int) format
]);
237 mi_cmd_var_info_num_children (char *command
, char **argv
, int argc
)
242 error ("mi_cmd_var_info_num_children: Usage: NAME.");
244 /* Get varobj handle, if a valid var obj name was specified */
245 var
= varobj_get_handle (argv
[0]);
247 error ("mi_cmd_var_info_num_children: Variable object not found");
249 ui_out_field_int (uiout
, "numchild", varobj_get_num_children (var
));
254 mi_cmd_var_list_children (char *command
, char **argv
, int argc
)
257 struct varobj
**childlist
;
263 error ("mi_cmd_var_list_children: Usage: NAME.");
265 /* Get varobj handle, if a valid var obj name was specified */
266 var
= varobj_get_handle (argv
[0]);
268 error ("mi_cmd_var_list_children: Variable object not found");
270 numchild
= varobj_list_children (var
, &childlist
);
271 ui_out_field_int (uiout
, "numchild", numchild
);
276 ui_out_list_begin (uiout
, "children");
280 ui_out_list_begin (uiout
, "child");
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 */
287 ui_out_field_string (uiout
, "type", varobj_get_type (*cc
));
288 ui_out_list_end (uiout
);
291 ui_out_list_end (uiout
);
297 mi_cmd_var_info_type (char *command
, char **argv
, int argc
)
302 error ("mi_cmd_var_info_type: Usage: NAME.");
304 /* Get varobj handle, if a valid var obj name was specified */
305 var
= varobj_get_handle (argv
[0]);
307 error ("mi_cmd_var_info_type: Variable object not found");
309 ui_out_field_string (uiout
, "type", varobj_get_type (var
));
314 mi_cmd_var_info_expression (char *command
, char **argv
, int argc
)
316 enum varobj_languages lang
;
320 error ("mi_cmd_var_info_expression: Usage: NAME.");
322 /* Get varobj handle, if a valid var obj name was specified */
323 var
= varobj_get_handle (argv
[0]);
325 error ("mi_cmd_var_info_expression: Variable object not found");
327 lang
= varobj_get_language (var
);
329 ui_out_field_string (uiout
, "lang", varobj_language_string
[(int) lang
]);
330 ui_out_field_string (uiout
, "exp", varobj_get_expression (var
));
335 mi_cmd_var_show_attributes (char *command
, char **argv
, int argc
)
342 error ("mi_cmd_var_show_attributes: Usage: NAME.");
344 /* Get varobj handle, if a valid var obj name was specified */
345 var
= varobj_get_handle (argv
[0]);
347 error ("mi_cmd_var_show_attributes: Variable object not found");
349 attr
= varobj_get_attributes (var
);
350 /* FIXME: define masks for attributes */
351 if (attr
& 0x00000001)
354 attstr
= "noneditable";
356 ui_out_field_string (uiout
, "attr", attstr
);
361 mi_cmd_var_evaluate_expression (char *command
, char **argv
, int argc
)
366 error ("mi_cmd_var_evaluate_expression: Usage: NAME.");
368 /* Get varobj handle, if a valid var obj name was specified */
369 var
= varobj_get_handle (argv
[0]);
371 error ("mi_cmd_var_evaluate_expression: Variable object not found");
373 ui_out_field_string (uiout
, "value", varobj_get_value (var
));
378 mi_cmd_var_assign (char *command
, char **argv
, int argc
)
384 error ("mi_cmd_var_assign: Usage: NAME EXPRESSION.");
386 /* Get varobj handle, if a valid var obj name was specified */
387 var
= varobj_get_handle (argv
[0]);
389 error ("mi_cmd_var_assign: Variable object not found");
391 /* FIXME: define masks for attributes */
392 if (!(varobj_get_attributes (var
) & 0x00000001))
393 error ("mi_cmd_var_assign: Variable object is not editable");
395 expression
= xstrdup (argv
[1]);
397 if (!varobj_set_value (var
, expression
))
398 error ("mi_cmd_var_assign: Could not assign expression to varible object");
400 ui_out_field_string (uiout
, "value", varobj_get_value (var
));
405 mi_cmd_var_update (char *command
, char **argv
, int argc
)
408 struct varobj
**rootlist
;
414 error ("mi_cmd_var_update: Usage: NAME.");
418 /* Check if the parameter is a "*" which means that we want
419 to update all variables */
421 if ((*name
== '*') && (*(name
+ 1) == '\0'))
423 nv
= varobj_list (&rootlist
);
424 ui_out_list_begin (uiout
, "changelist");
427 ui_out_list_end (uiout
);
433 varobj_update_one (*cr
);
437 ui_out_list_end (uiout
);
441 /* Get varobj handle, if a valid var obj name was specified */
442 var
= varobj_get_handle (name
);
444 error ("mi_cmd_var_update: Variable object not found");
446 ui_out_list_begin (uiout
, "changelist");
447 varobj_update_one (var
);
448 ui_out_list_end (uiout
);
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. */
458 varobj_update_one (struct varobj
*var
)
460 struct varobj
**changelist
;
464 nc
= varobj_update (var
, &changelist
);
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. */
474 ui_out_field_string (uiout
, "name", varobj_get_objname(var
));
475 ui_out_field_string (uiout
, "in_scope", "false");
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
));
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");