1 /* MI Command Set - stack commands.
2 Copyright (C) 2000, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Solutions (a Red Hat company).
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
30 #include "dictionary.h"
31 #include "gdb_string.h"
36 enum what_to_list { locals, arguments, all };
38 static void list_args_or_locals (enum what_to_list what,
39 int values, struct frame_info *fi);
41 /* Print a list of the stack frames. Args can be none, in which case
42 we want to print the whole backtrace, or a pair of numbers
43 specifying the frame numbers at which to start and stop the
44 display. If the two numbers are equal, a single frame will be
47 mi_cmd_stack_list_frames (char *command, char **argv, int argc)
52 struct cleanup *cleanup_stack;
53 struct frame_info *fi;
55 if (argc > 2 || argc == 1)
56 error (_("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]"));
60 frame_low = atoi (argv[0]);
61 frame_high = atoi (argv[1]);
65 /* Called with no arguments, it means we want the whole
71 /* Let's position fi on the frame at which to start the
72 display. Could be the innermost frame if the whole stack needs
73 displaying, or if frame_low is 0. */
74 for (i = 0, fi = get_current_frame ();
76 i++, fi = get_prev_frame (fi));
79 error (_("mi_cmd_stack_list_frames: Not enough frames in stack."));
81 cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack");
83 /* Now let;s print the frames up to frame_high, or until there are
84 frames in the stack. */
86 fi && (i <= frame_high || frame_high == -1);
87 i++, fi = get_prev_frame (fi))
90 /* Print the location and the address always, even for level 0.
91 args == 0: don't print the arguments. */
92 print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */ );
95 do_cleanups (cleanup_stack);
99 mi_cmd_stack_info_depth (char *command, char **argv, int argc)
103 struct frame_info *fi;
106 error (_("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]"));
109 frame_high = atoi (argv[0]);
111 /* Called with no arguments, it means we want the real depth of
115 for (i = 0, fi = get_current_frame ();
116 fi && (i < frame_high || frame_high == -1);
117 i++, fi = get_prev_frame (fi))
120 ui_out_field_int (uiout, "depth", i);
123 static enum print_values
124 parse_print_values (char *name)
126 if (strcmp (name, "0") == 0
127 || strcmp (name, mi_no_values) == 0)
128 return PRINT_NO_VALUES;
129 else if (strcmp (name, "1") == 0
130 || strcmp (name, mi_all_values) == 0)
131 return PRINT_ALL_VALUES;
132 else if (strcmp (name, "2") == 0
133 || strcmp (name, mi_simple_values) == 0)
134 return PRINT_SIMPLE_VALUES;
136 error (_("Unknown value for PRINT_VALUES: must be: \
137 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
138 mi_no_values, mi_all_values, mi_simple_values);
141 /* Print a list of the locals for the current frame. With argument of
142 0, print only the names, with argument of 1 print also the
145 mi_cmd_stack_list_locals (char *command, char **argv, int argc)
147 struct frame_info *frame;
150 error (_("mi_cmd_stack_list_locals: Usage: PRINT_VALUES"));
152 frame = get_selected_frame (NULL);
154 list_args_or_locals (locals, parse_print_values (argv[0]), frame);
157 /* Print a list of the arguments for the current frame. With argument
158 of 0, print only the names, with argument of 1 print also the
161 mi_cmd_stack_list_args (char *command, char **argv, int argc)
166 struct frame_info *fi;
167 struct cleanup *cleanup_stack_args;
168 enum print_values print_values;
170 if (argc < 1 || argc > 3 || argc == 2)
171 error (_("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]"));
175 frame_low = atoi (argv[1]);
176 frame_high = atoi (argv[2]);
180 /* Called with no arguments, it means we want args for the whole
186 print_values = parse_print_values (argv[0]);
188 /* Let's position fi on the frame at which to start the
189 display. Could be the innermost frame if the whole stack needs
190 displaying, or if frame_low is 0. */
191 for (i = 0, fi = get_current_frame ();
193 i++, fi = get_prev_frame (fi));
196 error (_("mi_cmd_stack_list_args: Not enough frames in stack."));
198 cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args");
200 /* Now let's print the frames up to frame_high, or until there are
201 frames in the stack. */
203 fi && (i <= frame_high || frame_high == -1);
204 i++, fi = get_prev_frame (fi))
206 struct cleanup *cleanup_frame;
209 cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
210 ui_out_field_int (uiout, "level", i);
211 list_args_or_locals (arguments, print_values, fi);
212 do_cleanups (cleanup_frame);
215 do_cleanups (cleanup_stack_args);
218 /* Print a list of the local variables (including arguments) for the
219 current frame. ARGC must be 1 and ARGV[0] specify if only the names,
220 or both names and values of the variables must be printed. See
221 parse_print_value for possible values. */
223 mi_cmd_stack_list_variables (char *command, char **argv, int argc)
225 struct frame_info *frame;
228 error (_("Usage: PRINT_VALUES"));
230 frame = get_selected_frame (NULL);
232 list_args_or_locals (all, parse_print_values (argv[0]), frame);
236 /* Print a list of the locals or the arguments for the currently
237 selected frame. If the argument passed is 0, printonly the names
238 of the variables, if an argument of 1 is passed, print the values
241 list_args_or_locals (enum what_to_list what, int values, struct frame_info *fi)
245 struct dict_iterator iter;
246 struct cleanup *cleanup_list;
247 static struct ui_stream *stb = NULL;
249 char *name_of_result;
251 stb = ui_out_stream_new (uiout);
253 block = get_frame_block (fi, 0);
258 name_of_result = "locals";
261 name_of_result = "args";
264 name_of_result = "variables";
267 internal_error (__FILE__, __LINE__,
268 "unexpected what_to_list: %d", (int) what);
271 cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, name_of_result);
275 ALL_BLOCK_SYMBOLS (block, iter, sym)
279 switch (SYMBOL_CLASS (sym))
282 case LOC_UNDEF: /* catches errors */
283 case LOC_CONST: /* constant */
284 case LOC_TYPEDEF: /* local typedef */
285 case LOC_LABEL: /* local label */
286 case LOC_BLOCK: /* local function */
287 case LOC_CONST_BYTES: /* loc. byte seq. */
288 case LOC_UNRESOLVED: /* unresolved static */
289 case LOC_OPTIMIZED_OUT: /* optimized out */
293 case LOC_ARG: /* argument */
294 case LOC_REF_ARG: /* reference arg */
295 case LOC_REGPARM_ADDR: /* indirect register arg */
296 case LOC_LOCAL: /* stack local */
297 case LOC_STATIC: /* static */
298 case LOC_REGISTER: /* register */
299 case LOC_COMPUTED: /* computed location */
302 else if (what == locals)
303 print_me = !SYMBOL_IS_ARGUMENT (sym);
305 print_me = SYMBOL_IS_ARGUMENT (sym);
310 struct cleanup *cleanup_tuple = NULL;
314 if (values != PRINT_NO_VALUES || what == all)
316 make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
317 ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym));
318 if (what == all && SYMBOL_IS_ARGUMENT (sym))
319 ui_out_field_int (uiout, "arg", 1);
321 if (SYMBOL_IS_ARGUMENT (sym))
322 sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym),
329 case PRINT_SIMPLE_VALUES:
330 type = check_typedef (sym2->type);
331 type_print (sym2->type, "", stb->stream, -1);
332 ui_out_field_stream (uiout, "type", stb);
333 if (TYPE_CODE (type) != TYPE_CODE_ARRAY
334 && TYPE_CODE (type) != TYPE_CODE_STRUCT
335 && TYPE_CODE (type) != TYPE_CODE_UNION)
337 struct value_print_options opts;
339 val = read_var_value (sym2, fi);
340 get_raw_print_options (&opts);
343 (val, stb->stream, 0, &opts,
344 language_def (SYMBOL_LANGUAGE (sym2)));
345 ui_out_field_stream (uiout, "value", stb);
348 case PRINT_ALL_VALUES:
350 struct value_print_options opts;
352 val = read_var_value (sym2, fi);
353 get_raw_print_options (&opts);
356 (val, stb->stream, 0, &opts,
357 language_def (SYMBOL_LANGUAGE (sym2)));
358 ui_out_field_stream (uiout, "value", stb);
363 if (values != PRINT_NO_VALUES || what == all)
364 do_cleanups (cleanup_tuple);
367 if (BLOCK_FUNCTION (block))
370 block = BLOCK_SUPERBLOCK (block);
372 do_cleanups (cleanup_list);
373 ui_out_stream_delete (stb);
377 mi_cmd_stack_select_frame (char *command, char **argv, int argc)
379 if (argc == 0 || argc > 1)
380 error (_("mi_cmd_stack_select_frame: Usage: FRAME_SPEC"));
382 select_frame_command (argv[0], 1 /* not used */ );
386 mi_cmd_stack_info_frame (char *command, char **argv, int argc)
389 error (_("mi_cmd_stack_info_frame: No arguments required"));
391 print_frame_info (get_selected_frame (NULL), 1, LOC_AND_ADDRESS, 0);