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 /* level == i: always print the level 'i'
89 source == LOC_AND_ADDRESS: print the location and the address
90 always, even for level 0.
91 args == 0: don't print the arguments. */
92 print_frame_info (fi /* frame info */ ,
94 LOC_AND_ADDRESS /* source */ ,
98 do_cleanups (cleanup_stack);
100 error ("mi_cmd_stack_list_frames: Not enough frames in stack.");
106 mi_cmd_stack_info_depth (char *command, char **argv, int argc)
110 struct frame_info *fi;
112 if (!target_has_stack)
113 error ("mi_cmd_stack_info_depth: No stack.");
116 error ("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]");
119 frame_high = atoi (argv[0]);
121 /* Called with no arguments, it means we want the real depth of
125 for (i = 0, fi = get_current_frame ();
126 fi && (i < frame_high || frame_high == -1);
127 i++, fi = get_prev_frame (fi))
130 ui_out_field_int (uiout, "depth", i);
135 /* Print a list of the locals for the current frame. With argument of
136 0, print only the names, with argument of 1 print also the
139 mi_cmd_stack_list_locals (char *command, char **argv, int argc)
141 struct frame_info *frame;
142 enum print_values print_values;
145 error ("mi_cmd_stack_list_locals: Usage: PRINT_VALUES");
147 frame = get_selected_frame ();
149 if (strcmp (argv[0], "0") == 0
150 || strcmp (argv[0], "--no-values") == 0)
151 print_values = PRINT_NO_VALUES;
152 else if (strcmp (argv[0], "1") == 0
153 || strcmp (argv[0], "--all-values") == 0)
154 print_values = PRINT_ALL_VALUES;
155 else if (strcmp (argv[0], "2") == 0
156 || strcmp (argv[0], "--simple-values") == 0)
157 print_values = PRINT_SIMPLE_VALUES;
159 error ("Unknown value for PRINT_VALUES: must be: 0 or \"--no-values\", 1 or \"--all-values\", 2 or \"--simple-values\"");
160 list_args_or_locals (1, print_values, frame);
164 /* Print a list of the arguments for the current frame. With argument
165 of 0, print only the names, with argument of 1 print also the
168 mi_cmd_stack_list_args (char *command, char **argv, int argc)
173 struct frame_info *fi;
174 struct cleanup *cleanup_stack_args;
176 if (argc < 1 || argc > 3 || argc == 2)
177 error ("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]");
181 frame_low = atoi (argv[1]);
182 frame_high = atoi (argv[2]);
186 /* Called with no arguments, it means we want args for the whole
192 /* Let's position fi on the frame at which to start the
193 display. Could be the innermost frame if the whole stack needs
194 displaying, or if frame_low is 0. */
195 for (i = 0, fi = get_current_frame ();
197 i++, fi = get_prev_frame (fi));
200 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
202 cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args");
204 /* Now let's print the frames up to frame_high, or until there are
205 frames in the stack. */
207 fi && (i <= frame_high || frame_high == -1);
208 i++, fi = get_prev_frame (fi))
210 struct cleanup *cleanup_frame;
212 cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
213 ui_out_field_int (uiout, "level", i);
214 list_args_or_locals (0, atoi (argv[0]), fi);
215 do_cleanups (cleanup_frame);
218 do_cleanups (cleanup_stack_args);
220 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
225 /* Print a list of the locals or the arguments for the currently
226 selected frame. If the argument passed is 0, printonly the names
227 of the variables, if an argument of 1 is passed, print the values
230 list_args_or_locals (int locals, int values, struct frame_info *fi)
234 struct dict_iterator iter;
236 struct cleanup *cleanup_list;
237 static struct ui_stream *stb = NULL;
240 stb = ui_out_stream_new (uiout);
242 block = get_frame_block (fi, 0);
244 cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args");
248 ALL_BLOCK_SYMBOLS (block, iter, sym)
252 switch (SYMBOL_CLASS (sym))
255 case LOC_UNDEF: /* catches errors */
256 case LOC_CONST: /* constant */
257 case LOC_TYPEDEF: /* local typedef */
258 case LOC_LABEL: /* local label */
259 case LOC_BLOCK: /* local function */
260 case LOC_CONST_BYTES: /* loc. byte seq. */
261 case LOC_UNRESOLVED: /* unresolved static */
262 case LOC_OPTIMIZED_OUT: /* optimized out */
266 case LOC_ARG: /* argument */
267 case LOC_REF_ARG: /* reference arg */
268 case LOC_REGPARM: /* register arg */
269 case LOC_REGPARM_ADDR: /* indirect register arg */
270 case LOC_LOCAL_ARG: /* stack arg */
271 case LOC_BASEREG_ARG: /* basereg arg */
272 case LOC_COMPUTED_ARG: /* arg with computed location */
277 case LOC_LOCAL: /* stack local */
278 case LOC_BASEREG: /* basereg local */
279 case LOC_STATIC: /* static */
280 case LOC_REGISTER: /* register */
281 case LOC_COMPUTED: /* computed location */
288 struct cleanup *cleanup_tuple = NULL;
290 if (values != PRINT_NO_VALUES)
292 make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
293 ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym));
296 sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym),
299 (struct symtab **) NULL);
304 case PRINT_SIMPLE_VALUES:
305 type = check_typedef (sym2->type);
306 type_print (sym2->type, "", stb->stream, -1);
307 ui_out_field_stream (uiout, "type", stb);
308 if (TYPE_CODE (type) != TYPE_CODE_ARRAY
309 && TYPE_CODE (type) != TYPE_CODE_STRUCT
310 && TYPE_CODE (type) != TYPE_CODE_UNION)
312 print_variable_value (sym2, fi, stb->stream);
313 ui_out_field_stream (uiout, "value", stb);
315 do_cleanups (cleanup_tuple);
317 case PRINT_ALL_VALUES:
318 print_variable_value (sym2, fi, stb->stream);
319 ui_out_field_stream (uiout, "value", stb);
320 do_cleanups (cleanup_tuple);
325 if (BLOCK_FUNCTION (block))
328 block = BLOCK_SUPERBLOCK (block);
330 do_cleanups (cleanup_list);
331 ui_out_stream_delete (stb);
335 mi_cmd_stack_select_frame (char *command, char **argv, int argc)
337 if (!target_has_stack)
338 error ("mi_cmd_stack_select_frame: No stack.");
341 error ("mi_cmd_stack_select_frame: Usage: [FRAME_SPEC]");
343 /* with no args, don't change frame */
345 select_frame_command (0, 1 /* not used */ );
347 select_frame_command (argv[0], 1 /* not used */ );