1 /* MI Command Set - stack commands.
2 Copyright 2000, 2002, 2003, 2004 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. */
31 #include "dictionary.h"
32 #include "gdb_string.h"
34 static void list_args_or_locals (int locals, int values, struct frame_info *fi);
36 /* Print a list of the stack frames. Args can be none, in which case
37 we want to print the whole backtrace, or a pair of numbers
38 specifying the frame numbers at which to start and stop the
39 display. If the two numbers are equal, a single frame will be
42 mi_cmd_stack_list_frames (char *command, char **argv, int argc)
47 struct cleanup *cleanup_stack;
48 struct frame_info *fi;
50 if (!target_has_stack)
51 error ("mi_cmd_stack_list_frames: No stack.");
53 if (argc > 2 || argc == 1)
54 error ("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]");
58 frame_low = atoi (argv[0]);
59 frame_high = atoi (argv[1]);
63 /* Called with no arguments, it means we want the whole
69 /* Let's position fi on the frame at which to start the
70 display. Could be the innermost frame if the whole stack needs
71 displaying, or if frame_low is 0. */
72 for (i = 0, fi = get_current_frame ();
74 i++, fi = get_prev_frame (fi));
77 error ("mi_cmd_stack_list_frames: Not enough frames in stack.");
79 cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack");
81 /* Now let;s print the frames up to frame_high, or until there are
82 frames in the stack. */
84 fi && (i <= frame_high || frame_high == -1);
85 i++, fi = get_prev_frame (fi))
88 /* Print the location and the address always, even for level 0.
89 args == 0: don't print the arguments. */
90 print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */ );
93 do_cleanups (cleanup_stack);
95 error ("mi_cmd_stack_list_frames: Not enough frames in stack.");
101 mi_cmd_stack_info_depth (char *command, char **argv, int argc)
105 struct frame_info *fi;
107 if (!target_has_stack)
108 error ("mi_cmd_stack_info_depth: No stack.");
111 error ("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]");
114 frame_high = atoi (argv[0]);
116 /* Called with no arguments, it means we want the real depth of
120 for (i = 0, fi = get_current_frame ();
121 fi && (i < frame_high || frame_high == -1);
122 i++, fi = get_prev_frame (fi))
125 ui_out_field_int (uiout, "depth", i);
130 /* Print a list of the locals for the current frame. With argument of
131 0, print only the names, with argument of 1 print also the
134 mi_cmd_stack_list_locals (char *command, char **argv, int argc)
136 struct frame_info *frame;
137 enum print_values print_values;
140 error ("mi_cmd_stack_list_locals: Usage: PRINT_VALUES");
142 frame = get_selected_frame ();
144 if (strcmp (argv[0], "0") == 0
145 || strcmp (argv[0], "--no-values") == 0)
146 print_values = PRINT_NO_VALUES;
147 else if (strcmp (argv[0], "1") == 0
148 || strcmp (argv[0], "--all-values") == 0)
149 print_values = PRINT_ALL_VALUES;
150 else if (strcmp (argv[0], "2") == 0
151 || strcmp (argv[0], "--simple-values") == 0)
152 print_values = PRINT_SIMPLE_VALUES;
154 error ("Unknown value for PRINT_VALUES: must be: 0 or \"--no-values\", 1 or \"--all-values\", 2 or \"--simple-values\"");
155 list_args_or_locals (1, print_values, frame);
159 /* Print a list of the arguments for the current frame. With argument
160 of 0, print only the names, with argument of 1 print also the
163 mi_cmd_stack_list_args (char *command, char **argv, int argc)
168 struct frame_info *fi;
169 struct cleanup *cleanup_stack_args;
171 if (argc < 1 || argc > 3 || argc == 2)
172 error ("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]");
176 frame_low = atoi (argv[1]);
177 frame_high = atoi (argv[2]);
181 /* Called with no arguments, it means we want args for the whole
187 /* Let's position fi on the frame at which to start the
188 display. Could be the innermost frame if the whole stack needs
189 displaying, or if frame_low is 0. */
190 for (i = 0, fi = get_current_frame ();
192 i++, fi = get_prev_frame (fi));
195 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
197 cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args");
199 /* Now let's print the frames up to frame_high, or until there are
200 frames in the stack. */
202 fi && (i <= frame_high || frame_high == -1);
203 i++, fi = get_prev_frame (fi))
205 struct cleanup *cleanup_frame;
207 cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
208 ui_out_field_int (uiout, "level", i);
209 list_args_or_locals (0, atoi (argv[0]), fi);
210 do_cleanups (cleanup_frame);
213 do_cleanups (cleanup_stack_args);
215 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
220 /* Print a list of the locals or the arguments for the currently
221 selected frame. If the argument passed is 0, printonly the names
222 of the variables, if an argument of 1 is passed, print the values
225 list_args_or_locals (int locals, int values, struct frame_info *fi)
229 struct dict_iterator iter;
231 struct cleanup *cleanup_list;
232 static struct ui_stream *stb = NULL;
235 stb = ui_out_stream_new (uiout);
237 block = get_frame_block (fi, 0);
239 cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args");
243 ALL_BLOCK_SYMBOLS (block, iter, sym)
247 switch (SYMBOL_CLASS (sym))
250 case LOC_UNDEF: /* catches errors */
251 case LOC_CONST: /* constant */
252 case LOC_TYPEDEF: /* local typedef */
253 case LOC_LABEL: /* local label */
254 case LOC_BLOCK: /* local function */
255 case LOC_CONST_BYTES: /* loc. byte seq. */
256 case LOC_UNRESOLVED: /* unresolved static */
257 case LOC_OPTIMIZED_OUT: /* optimized out */
261 case LOC_ARG: /* argument */
262 case LOC_REF_ARG: /* reference arg */
263 case LOC_REGPARM: /* register arg */
264 case LOC_REGPARM_ADDR: /* indirect register arg */
265 case LOC_LOCAL_ARG: /* stack arg */
266 case LOC_BASEREG_ARG: /* basereg arg */
267 case LOC_COMPUTED_ARG: /* arg with computed location */
272 case LOC_LOCAL: /* stack local */
273 case LOC_BASEREG: /* basereg local */
274 case LOC_STATIC: /* static */
275 case LOC_REGISTER: /* register */
276 case LOC_COMPUTED: /* computed location */
283 struct cleanup *cleanup_tuple = NULL;
285 if (values != PRINT_NO_VALUES)
287 make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
288 ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym));
291 sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym),
294 (struct symtab **) NULL);
299 case PRINT_SIMPLE_VALUES:
300 type = check_typedef (sym2->type);
301 type_print (sym2->type, "", stb->stream, -1);
302 ui_out_field_stream (uiout, "type", stb);
303 if (TYPE_CODE (type) != TYPE_CODE_ARRAY
304 && TYPE_CODE (type) != TYPE_CODE_STRUCT
305 && TYPE_CODE (type) != TYPE_CODE_UNION)
307 print_variable_value (sym2, fi, stb->stream);
308 ui_out_field_stream (uiout, "value", stb);
310 do_cleanups (cleanup_tuple);
312 case PRINT_ALL_VALUES:
313 print_variable_value (sym2, fi, stb->stream);
314 ui_out_field_stream (uiout, "value", stb);
315 do_cleanups (cleanup_tuple);
320 if (BLOCK_FUNCTION (block))
323 block = BLOCK_SUPERBLOCK (block);
325 do_cleanups (cleanup_list);
326 ui_out_stream_delete (stb);
330 mi_cmd_stack_select_frame (char *command, char **argv, int argc)
332 if (!target_has_stack)
333 error ("mi_cmd_stack_select_frame: No stack.");
336 error ("mi_cmd_stack_select_frame: Usage: [FRAME_SPEC]");
338 /* with no args, don't change frame */
340 select_frame_command (0, 1 /* not used */ );
342 select_frame_command (argv[0], 1 /* not used */ );