1 /* MI Command Set - stack commands.
2 Copyright (C) 2000, 2002, 2003, 2004, 2005, 2007, 2008
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"
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 (argc
> 2 || argc
== 1)
51 error (_("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]"));
55 frame_low
= atoi (argv
[0]);
56 frame_high
= atoi (argv
[1]);
60 /* Called with no arguments, it means we want the whole
66 /* Let's position fi on the frame at which to start the
67 display. Could be the innermost frame if the whole stack needs
68 displaying, or if frame_low is 0. */
69 for (i
= 0, fi
= get_current_frame ();
71 i
++, fi
= get_prev_frame (fi
));
74 error (_("mi_cmd_stack_list_frames: Not enough frames in stack."));
76 cleanup_stack
= make_cleanup_ui_out_list_begin_end (uiout
, "stack");
78 /* Now let;s print the frames up to frame_high, or until there are
79 frames in the stack. */
81 fi
&& (i
<= frame_high
|| frame_high
== -1);
82 i
++, fi
= get_prev_frame (fi
))
85 /* Print the location and the address always, even for level 0.
86 args == 0: don't print the arguments. */
87 print_frame_info (fi
, 1, LOC_AND_ADDRESS
, 0 /* args */ );
90 do_cleanups (cleanup_stack
);
96 mi_cmd_stack_info_depth (char *command
, char **argv
, int argc
)
100 struct frame_info
*fi
;
103 error (_("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]"));
106 frame_high
= atoi (argv
[0]);
108 /* Called with no arguments, it means we want the real depth of
112 for (i
= 0, fi
= get_current_frame ();
113 fi
&& (i
< frame_high
|| frame_high
== -1);
114 i
++, fi
= get_prev_frame (fi
))
117 ui_out_field_int (uiout
, "depth", i
);
122 /* Print a list of the locals for the current frame. With argument of
123 0, print only the names, with argument of 1 print also the
126 mi_cmd_stack_list_locals (char *command
, char **argv
, int argc
)
128 struct frame_info
*frame
;
129 enum print_values print_values
;
132 error (_("mi_cmd_stack_list_locals: Usage: PRINT_VALUES"));
134 frame
= get_selected_frame (NULL
);
136 if (strcmp (argv
[0], "0") == 0
137 || strcmp (argv
[0], mi_no_values
) == 0)
138 print_values
= PRINT_NO_VALUES
;
139 else if (strcmp (argv
[0], "1") == 0
140 || strcmp (argv
[0], mi_all_values
) == 0)
141 print_values
= PRINT_ALL_VALUES
;
142 else if (strcmp (argv
[0], "2") == 0
143 || strcmp (argv
[0], mi_simple_values
) == 0)
144 print_values
= PRINT_SIMPLE_VALUES
;
146 error (_("Unknown value for PRINT_VALUES: must be: \
147 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
148 mi_no_values
, mi_all_values
, mi_simple_values
);
149 list_args_or_locals (1, print_values
, frame
);
153 /* Print a list of the arguments for the current frame. With argument
154 of 0, print only the names, with argument of 1 print also the
157 mi_cmd_stack_list_args (char *command
, char **argv
, int argc
)
162 struct frame_info
*fi
;
163 struct cleanup
*cleanup_stack_args
;
165 if (argc
< 1 || argc
> 3 || argc
== 2)
166 error (_("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]"));
170 frame_low
= atoi (argv
[1]);
171 frame_high
= atoi (argv
[2]);
175 /* Called with no arguments, it means we want args for the whole
181 /* Let's position fi on the frame at which to start the
182 display. Could be the innermost frame if the whole stack needs
183 displaying, or if frame_low is 0. */
184 for (i
= 0, fi
= get_current_frame ();
186 i
++, fi
= get_prev_frame (fi
));
189 error (_("mi_cmd_stack_list_args: Not enough frames in stack."));
191 cleanup_stack_args
= make_cleanup_ui_out_list_begin_end (uiout
, "stack-args");
193 /* Now let's print the frames up to frame_high, or until there are
194 frames in the stack. */
196 fi
&& (i
<= frame_high
|| frame_high
== -1);
197 i
++, fi
= get_prev_frame (fi
))
199 struct cleanup
*cleanup_frame
;
201 cleanup_frame
= make_cleanup_ui_out_tuple_begin_end (uiout
, "frame");
202 ui_out_field_int (uiout
, "level", i
);
203 list_args_or_locals (0, atoi (argv
[0]), fi
);
204 do_cleanups (cleanup_frame
);
207 do_cleanups (cleanup_stack_args
);
212 /* Print a list of the locals or the arguments for the currently
213 selected frame. If the argument passed is 0, printonly the names
214 of the variables, if an argument of 1 is passed, print the values
217 list_args_or_locals (int locals
, int values
, struct frame_info
*fi
)
221 struct dict_iterator iter
;
223 struct cleanup
*cleanup_list
;
224 static struct ui_stream
*stb
= NULL
;
227 stb
= ui_out_stream_new (uiout
);
229 block
= get_frame_block (fi
, 0);
231 cleanup_list
= make_cleanup_ui_out_list_begin_end (uiout
, locals
? "locals" : "args");
235 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
239 switch (SYMBOL_CLASS (sym
))
242 case LOC_UNDEF
: /* catches errors */
243 case LOC_CONST
: /* constant */
244 case LOC_TYPEDEF
: /* local typedef */
245 case LOC_LABEL
: /* local label */
246 case LOC_BLOCK
: /* local function */
247 case LOC_CONST_BYTES
: /* loc. byte seq. */
248 case LOC_UNRESOLVED
: /* unresolved static */
249 case LOC_OPTIMIZED_OUT
: /* optimized out */
253 case LOC_ARG
: /* argument */
254 case LOC_REF_ARG
: /* reference arg */
255 case LOC_REGPARM
: /* register arg */
256 case LOC_REGPARM_ADDR
: /* indirect register arg */
257 case LOC_COMPUTED_ARG
: /* arg with computed location */
262 case LOC_LOCAL
: /* stack local */
263 case LOC_STATIC
: /* static */
264 case LOC_REGISTER
: /* register */
265 case LOC_COMPUTED
: /* computed location */
272 struct cleanup
*cleanup_tuple
= NULL
;
275 if (values
!= PRINT_NO_VALUES
)
277 make_cleanup_ui_out_tuple_begin_end (uiout
, NULL
);
278 ui_out_field_string (uiout
, "name", SYMBOL_PRINT_NAME (sym
));
281 sym2
= lookup_symbol (SYMBOL_NATURAL_NAME (sym
),
288 case PRINT_SIMPLE_VALUES
:
289 type
= check_typedef (sym2
->type
);
290 type_print (sym2
->type
, "", stb
->stream
, -1);
291 ui_out_field_stream (uiout
, "type", stb
);
292 if (TYPE_CODE (type
) != TYPE_CODE_ARRAY
293 && TYPE_CODE (type
) != TYPE_CODE_STRUCT
294 && TYPE_CODE (type
) != TYPE_CODE_UNION
)
296 val
= read_var_value (sym2
, fi
);
298 (val
, stb
->stream
, 0, 1, 0, Val_no_prettyprint
,
299 language_def (SYMBOL_LANGUAGE (sym2
)));
300 ui_out_field_stream (uiout
, "value", stb
);
302 do_cleanups (cleanup_tuple
);
304 case PRINT_ALL_VALUES
:
305 val
= read_var_value (sym2
, fi
);
307 (val
, stb
->stream
, 0, 1, 0, Val_no_prettyprint
,
308 language_def (SYMBOL_LANGUAGE (sym2
)));
309 ui_out_field_stream (uiout
, "value", stb
);
310 do_cleanups (cleanup_tuple
);
315 if (BLOCK_FUNCTION (block
))
318 block
= BLOCK_SUPERBLOCK (block
);
320 do_cleanups (cleanup_list
);
321 ui_out_stream_delete (stb
);
325 mi_cmd_stack_select_frame (char *command
, char **argv
, int argc
)
327 if (argc
== 0 || argc
> 1)
328 error (_("mi_cmd_stack_select_frame: Usage: FRAME_SPEC"));
330 select_frame_command (argv
[0], 1 /* not used */ );
335 mi_cmd_stack_info_frame (char *command
, char **argv
, int argc
)
338 error (_("mi_cmd_stack_info_frame: No arguments required"));
340 print_frame_info (get_selected_frame (NULL
), 1, LOC_AND_ADDRESS
, 0);