1 /* MI Command Set - stack commands.
2 Copyright (C) 2000, 2002, 2003, 2004, 2005, 2007, 2008, 2009
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"
35 static void list_args_or_locals (int locals, int values, struct frame_info *fi);
37 /* Print a list of the stack frames. Args can be none, in which case
38 we want to print the whole backtrace, or a pair of numbers
39 specifying the frame numbers at which to start and stop the
40 display. If the two numbers are equal, a single frame will be
43 mi_cmd_stack_list_frames (char *command, char **argv, int argc)
48 struct cleanup *cleanup_stack;
49 struct frame_info *fi;
51 if (argc > 2 || argc == 1)
52 error (_("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]"));
56 frame_low = atoi (argv[0]);
57 frame_high = atoi (argv[1]);
61 /* Called with no arguments, it means we want the whole
67 /* Let's position fi on the frame at which to start the
68 display. Could be the innermost frame if the whole stack needs
69 displaying, or if frame_low is 0. */
70 for (i = 0, fi = get_current_frame ();
72 i++, fi = get_prev_frame (fi));
75 error (_("mi_cmd_stack_list_frames: Not enough frames in stack."));
77 cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack");
79 /* Now let;s print the frames up to frame_high, or until there are
80 frames in the stack. */
82 fi && (i <= frame_high || frame_high == -1);
83 i++, fi = get_prev_frame (fi))
86 /* Print the location and the address always, even for level 0.
87 args == 0: don't print the arguments. */
88 print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */ );
91 do_cleanups (cleanup_stack);
95 mi_cmd_stack_info_depth (char *command, char **argv, int argc)
99 struct frame_info *fi;
102 error (_("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]"));
105 frame_high = atoi (argv[0]);
107 /* Called with no arguments, it means we want the real depth of
111 for (i = 0, fi = get_current_frame ();
112 fi && (i < frame_high || frame_high == -1);
113 i++, fi = get_prev_frame (fi))
116 ui_out_field_int (uiout, "depth", i);
119 static enum print_values
120 parse_print_values (char *name)
122 if (strcmp (name, "0") == 0
123 || strcmp (name, mi_no_values) == 0)
124 return PRINT_NO_VALUES;
125 else if (strcmp (name, "1") == 0
126 || strcmp (name, mi_all_values) == 0)
127 return PRINT_ALL_VALUES;
128 else if (strcmp (name, "2") == 0
129 || strcmp (name, mi_simple_values) == 0)
130 return PRINT_SIMPLE_VALUES;
132 error (_("Unknown value for PRINT_VALUES: must be: \
133 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
134 mi_no_values, mi_all_values, mi_simple_values);
137 /* Print a list of the locals for the current frame. With argument of
138 0, print only the names, with argument of 1 print also the
141 mi_cmd_stack_list_locals (char *command, char **argv, int argc)
143 struct frame_info *frame;
144 enum print_values print_values;
147 error (_("mi_cmd_stack_list_locals: Usage: PRINT_VALUES"));
149 frame = get_selected_frame (NULL);
151 list_args_or_locals (1, parse_print_values (argv[0]), frame);
154 /* Print a list of the arguments for the current frame. With argument
155 of 0, print only the names, with argument of 1 print also the
158 mi_cmd_stack_list_args (char *command, char **argv, int argc)
163 struct frame_info *fi;
164 struct cleanup *cleanup_stack_args;
165 enum print_values print_values;
167 if (argc < 1 || argc > 3 || argc == 2)
168 error (_("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]"));
172 frame_low = atoi (argv[1]);
173 frame_high = atoi (argv[2]);
177 /* Called with no arguments, it means we want args for the whole
183 print_values = parse_print_values (argv[0]);
185 /* Let's position fi on the frame at which to start the
186 display. Could be the innermost frame if the whole stack needs
187 displaying, or if frame_low is 0. */
188 for (i = 0, fi = get_current_frame ();
190 i++, fi = get_prev_frame (fi));
193 error (_("mi_cmd_stack_list_args: Not enough frames in stack."));
195 cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args");
197 /* Now let's print the frames up to frame_high, or until there are
198 frames in the stack. */
200 fi && (i <= frame_high || frame_high == -1);
201 i++, fi = get_prev_frame (fi))
203 struct cleanup *cleanup_frame;
205 cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
206 ui_out_field_int (uiout, "level", i);
207 list_args_or_locals (0, print_values, fi);
208 do_cleanups (cleanup_frame);
211 do_cleanups (cleanup_stack_args);
214 /* Print a list of the locals or the arguments for the currently
215 selected frame. If the argument passed is 0, printonly the names
216 of the variables, if an argument of 1 is passed, print the values
219 list_args_or_locals (int locals, int values, struct frame_info *fi)
223 struct dict_iterator iter;
225 struct cleanup *cleanup_list;
226 static struct ui_stream *stb = NULL;
229 stb = ui_out_stream_new (uiout);
231 block = get_frame_block (fi, 0);
233 cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args");
237 ALL_BLOCK_SYMBOLS (block, iter, sym)
241 switch (SYMBOL_CLASS (sym))
244 case LOC_UNDEF: /* catches errors */
245 case LOC_CONST: /* constant */
246 case LOC_TYPEDEF: /* local typedef */
247 case LOC_LABEL: /* local label */
248 case LOC_BLOCK: /* local function */
249 case LOC_CONST_BYTES: /* loc. byte seq. */
250 case LOC_UNRESOLVED: /* unresolved static */
251 case LOC_OPTIMIZED_OUT: /* optimized out */
255 case LOC_ARG: /* argument */
256 case LOC_REF_ARG: /* reference arg */
257 case LOC_REGPARM_ADDR: /* indirect register arg */
258 case LOC_LOCAL: /* stack local */
259 case LOC_STATIC: /* static */
260 case LOC_REGISTER: /* register */
261 case LOC_COMPUTED: /* computed location */
262 if (SYMBOL_IS_ARGUMENT (sym) ? !locals : locals)
268 struct cleanup *cleanup_tuple = NULL;
271 if (values != PRINT_NO_VALUES)
273 make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
274 ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym));
277 sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym),
284 case PRINT_SIMPLE_VALUES:
285 type = check_typedef (sym2->type);
286 type_print (sym2->type, "", stb->stream, -1);
287 ui_out_field_stream (uiout, "type", stb);
288 if (TYPE_CODE (type) != TYPE_CODE_ARRAY
289 && TYPE_CODE (type) != TYPE_CODE_STRUCT
290 && TYPE_CODE (type) != TYPE_CODE_UNION)
292 struct value_print_options opts;
293 val = read_var_value (sym2, fi);
294 get_raw_print_options (&opts);
297 (val, stb->stream, 0, &opts,
298 language_def (SYMBOL_LANGUAGE (sym2)));
299 ui_out_field_stream (uiout, "value", stb);
301 do_cleanups (cleanup_tuple);
303 case PRINT_ALL_VALUES:
305 struct value_print_options opts;
306 val = read_var_value (sym2, fi);
307 get_raw_print_options (&opts);
310 (val, stb->stream, 0, &opts,
311 language_def (SYMBOL_LANGUAGE (sym2)));
312 ui_out_field_stream (uiout, "value", stb);
313 do_cleanups (cleanup_tuple);
319 if (BLOCK_FUNCTION (block))
322 block = BLOCK_SUPERBLOCK (block);
324 do_cleanups (cleanup_list);
325 ui_out_stream_delete (stb);
329 mi_cmd_stack_select_frame (char *command, char **argv, int argc)
331 if (argc == 0 || argc > 1)
332 error (_("mi_cmd_stack_select_frame: Usage: FRAME_SPEC"));
334 select_frame_command (argv[0], 1 /* not used */ );
338 mi_cmd_stack_info_frame (char *command, char **argv, int argc)
341 error (_("mi_cmd_stack_info_frame: No arguments required"));
343 print_frame_info (get_selected_frame (NULL), 1, LOC_AND_ADDRESS, 0);