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);