1 /* MI Command Set - stack commands.
2 Copyright (C) 2000, 2002, 2003, 2004, 2005, 2007
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 2 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, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
32 #include "dictionary.h"
33 #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);
97 mi_cmd_stack_info_depth (char *command, char **argv, int argc)
101 struct frame_info *fi;
104 error (_("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]"));
107 frame_high = atoi (argv[0]);
109 /* Called with no arguments, it means we want the real depth of
113 for (i = 0, fi = get_current_frame ();
114 fi && (i < frame_high || frame_high == -1);
115 i++, fi = get_prev_frame (fi))
118 ui_out_field_int (uiout, "depth", i);
123 /* Print a list of the locals for the current frame. With argument of
124 0, print only the names, with argument of 1 print also the
127 mi_cmd_stack_list_locals (char *command, char **argv, int argc)
129 struct frame_info *frame;
130 enum print_values print_values;
133 error (_("mi_cmd_stack_list_locals: Usage: PRINT_VALUES"));
135 frame = get_selected_frame (NULL);
137 if (strcmp (argv[0], "0") == 0
138 || strcmp (argv[0], mi_no_values) == 0)
139 print_values = PRINT_NO_VALUES;
140 else if (strcmp (argv[0], "1") == 0
141 || strcmp (argv[0], mi_all_values) == 0)
142 print_values = PRINT_ALL_VALUES;
143 else if (strcmp (argv[0], "2") == 0
144 || strcmp (argv[0], mi_simple_values) == 0)
145 print_values = PRINT_SIMPLE_VALUES;
147 error (_("Unknown value for PRINT_VALUES: must be: \
148 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
149 mi_no_values, mi_all_values, mi_simple_values);
150 list_args_or_locals (1, print_values, 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;
166 if (argc < 1 || argc > 3 || argc == 2)
167 error (_("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]"));
171 frame_low = atoi (argv[1]);
172 frame_high = atoi (argv[2]);
176 /* Called with no arguments, it means we want args for the whole
182 /* Let's position fi on the frame at which to start the
183 display. Could be the innermost frame if the whole stack needs
184 displaying, or if frame_low is 0. */
185 for (i = 0, fi = get_current_frame ();
187 i++, fi = get_prev_frame (fi));
190 error (_("mi_cmd_stack_list_args: Not enough frames in stack."));
192 cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args");
194 /* Now let's print the frames up to frame_high, or until there are
195 frames in the stack. */
197 fi && (i <= frame_high || frame_high == -1);
198 i++, fi = get_prev_frame (fi))
200 struct cleanup *cleanup_frame;
202 cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
203 ui_out_field_int (uiout, "level", i);
204 list_args_or_locals (0, atoi (argv[0]), fi);
205 do_cleanups (cleanup_frame);
208 do_cleanups (cleanup_stack_args);
213 /* Print a list of the locals or the arguments for the currently
214 selected frame. If the argument passed is 0, printonly the names
215 of the variables, if an argument of 1 is passed, print the values
218 list_args_or_locals (int locals, int values, struct frame_info *fi)
222 struct dict_iterator iter;
224 struct cleanup *cleanup_list;
225 static struct ui_stream *stb = NULL;
228 stb = ui_out_stream_new (uiout);
230 block = get_frame_block (fi, 0);
232 cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args");
236 ALL_BLOCK_SYMBOLS (block, iter, sym)
240 switch (SYMBOL_CLASS (sym))
243 case LOC_UNDEF: /* catches errors */
244 case LOC_CONST: /* constant */
245 case LOC_TYPEDEF: /* local typedef */
246 case LOC_LABEL: /* local label */
247 case LOC_BLOCK: /* local function */
248 case LOC_CONST_BYTES: /* loc. byte seq. */
249 case LOC_UNRESOLVED: /* unresolved static */
250 case LOC_OPTIMIZED_OUT: /* optimized out */
254 case LOC_ARG: /* argument */
255 case LOC_REF_ARG: /* reference arg */
256 case LOC_REGPARM: /* register arg */
257 case LOC_REGPARM_ADDR: /* indirect register arg */
258 case LOC_LOCAL_ARG: /* stack arg */
259 case LOC_BASEREG_ARG: /* basereg arg */
260 case LOC_COMPUTED_ARG: /* arg with computed location */
265 case LOC_LOCAL: /* stack local */
266 case LOC_BASEREG: /* basereg local */
267 case LOC_STATIC: /* static */
268 case LOC_REGISTER: /* register */
269 case LOC_COMPUTED: /* computed location */
276 struct cleanup *cleanup_tuple = NULL;
279 if (values != PRINT_NO_VALUES)
281 make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
282 ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym));
285 sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym),
288 (struct symtab **) NULL);
293 case PRINT_SIMPLE_VALUES:
294 type = check_typedef (sym2->type);
295 type_print (sym2->type, "", stb->stream, -1);
296 ui_out_field_stream (uiout, "type", stb);
297 if (TYPE_CODE (type) != TYPE_CODE_ARRAY
298 && TYPE_CODE (type) != TYPE_CODE_STRUCT
299 && TYPE_CODE (type) != TYPE_CODE_UNION)
301 val = read_var_value (sym2, fi);
303 (val, stb->stream, 0, 1, 0, Val_no_prettyprint);
304 ui_out_field_stream (uiout, "value", stb);
306 do_cleanups (cleanup_tuple);
308 case PRINT_ALL_VALUES:
309 val = read_var_value (sym2, fi);
311 (val, stb->stream, 0, 1, 0, Val_no_prettyprint);
312 ui_out_field_stream (uiout, "value", stb);
313 do_cleanups (cleanup_tuple);
318 if (BLOCK_FUNCTION (block))
321 block = BLOCK_SUPERBLOCK (block);
323 do_cleanups (cleanup_list);
324 ui_out_stream_delete (stb);
328 mi_cmd_stack_select_frame (char *command, char **argv, int argc)
330 if (argc == 0 || argc > 1)
331 error (_("mi_cmd_stack_select_frame: Usage: FRAME_SPEC"));
333 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);