1 /* MI Command Set - stack commands.
2 Copyright 2000, 2002, 2003 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 /* FIXME: these should go in some .h file but stack.c doesn't have a
32 corresponding .h file. These wrappers will be obsolete anyway, once
33 we pull the plug on the sanitization. */
34 extern void select_frame_command_wrapper (char *, int);
36 static void list_args_or_locals (int locals, int values, struct frame_info *fi);
38 /* Print a list of the stack frames. Args can be none, in which case
39 we want to print the whole backtrace, or a pair of numbers
40 specifying the frame numbers at which to start and stop the
41 display. If the two numbers are equal, a single frame will be
44 mi_cmd_stack_list_frames (char *command, char **argv, int argc)
49 struct cleanup *cleanup_stack;
50 struct frame_info *fi;
52 if (!target_has_stack)
53 error ("mi_cmd_stack_list_frames: No stack.");
55 if (argc > 2 || argc == 1)
56 error ("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]");
60 frame_low = atoi (argv[0]);
61 frame_high = atoi (argv[1]);
65 /* Called with no arguments, it means we want the whole
71 /* Let's position fi on the frame at which to start the
72 display. Could be the innermost frame if the whole stack needs
73 displaying, or if frame_low is 0. */
74 for (i = 0, fi = get_current_frame ();
76 i++, fi = get_prev_frame (fi));
79 error ("mi_cmd_stack_list_frames: Not enough frames in stack.");
81 cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack");
83 /* Now let;s print the frames up to frame_high, or until there are
84 frames in the stack. */
86 fi && (i <= frame_high || frame_high == -1);
87 i++, fi = get_prev_frame (fi))
90 /* level == i: always print the level 'i'
91 source == LOC_AND_ADDRESS: print the location and the address
92 always, even for level 0.
93 args == 0: don't print the arguments. */
94 print_frame_info (fi /* frame info */ ,
96 LOC_AND_ADDRESS /* source */ ,
100 do_cleanups (cleanup_stack);
102 error ("mi_cmd_stack_list_frames: Not enough frames in stack.");
108 mi_cmd_stack_info_depth (char *command, char **argv, int argc)
112 struct frame_info *fi;
114 if (!target_has_stack)
115 error ("mi_cmd_stack_info_depth: No stack.");
118 error ("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]");
121 frame_high = atoi (argv[0]);
123 /* Called with no arguments, it means we want the real depth of
127 for (i = 0, fi = get_current_frame ();
128 fi && (i < frame_high || frame_high == -1);
129 i++, fi = get_prev_frame (fi))
132 ui_out_field_int (uiout, "depth", i);
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)
144 error ("mi_cmd_stack_list_locals: Usage: PRINT_VALUES");
146 list_args_or_locals (1, atoi (argv[0]), deprecated_selected_frame);
150 /* Print a list of the arguments for the current frame. With argument
151 of 0, print only the names, with argument of 1 print also the
154 mi_cmd_stack_list_args (char *command, char **argv, int argc)
159 struct frame_info *fi;
160 struct cleanup *cleanup_stack_args;
162 if (argc < 1 || argc > 3 || argc == 2)
163 error ("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]");
167 frame_low = atoi (argv[1]);
168 frame_high = atoi (argv[2]);
172 /* Called with no arguments, it means we want args for the whole
178 /* Let's position fi on the frame at which to start the
179 display. Could be the innermost frame if the whole stack needs
180 displaying, or if frame_low is 0. */
181 for (i = 0, fi = get_current_frame ();
183 i++, fi = get_prev_frame (fi));
186 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
188 cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args");
190 /* Now let's print the frames up to frame_high, or until there are
191 frames in the stack. */
193 fi && (i <= frame_high || frame_high == -1);
194 i++, fi = get_prev_frame (fi))
196 struct cleanup *cleanup_frame;
198 cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
199 ui_out_field_int (uiout, "level", i);
200 list_args_or_locals (0, atoi (argv[0]), fi);
201 do_cleanups (cleanup_frame);
204 do_cleanups (cleanup_stack_args);
206 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
211 /* Print a list of the locals or the arguments for the currently
212 selected frame. If the argument passed is 0, printonly the names
213 of the variables, if an argument of 1 is passed, print the values
216 list_args_or_locals (int locals, int values, struct frame_info *fi)
221 struct cleanup *cleanup_list;
222 static struct ui_stream *stb = NULL;
224 stb = ui_out_stream_new (uiout);
226 block = get_frame_block (fi, 0);
228 cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args");
232 ALL_BLOCK_SYMBOLS (block, i, sym)
236 switch (SYMBOL_CLASS (sym))
239 case LOC_UNDEF: /* catches errors */
240 case LOC_CONST: /* constant */
241 case LOC_TYPEDEF: /* local typedef */
242 case LOC_LABEL: /* local label */
243 case LOC_BLOCK: /* local function */
244 case LOC_CONST_BYTES: /* loc. byte seq. */
245 case LOC_UNRESOLVED: /* unresolved static */
246 case LOC_OPTIMIZED_OUT: /* optimized out */
250 case LOC_ARG: /* argument */
251 case LOC_REF_ARG: /* reference arg */
252 case LOC_REGPARM: /* register arg */
253 case LOC_REGPARM_ADDR: /* indirect register arg */
254 case LOC_LOCAL_ARG: /* stack arg */
255 case LOC_BASEREG_ARG: /* basereg arg */
256 case LOC_COMPUTED_ARG: /* arg with computed location */
261 case LOC_LOCAL: /* stack local */
262 case LOC_BASEREG: /* basereg local */
263 case LOC_STATIC: /* static */
264 case LOC_REGISTER: /* register */
265 case LOC_COMPUTED: /* computed location */
272 struct cleanup *cleanup_tuple = NULL;
275 make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
276 ui_out_field_string (uiout, "name", DEPRECATED_SYMBOL_NAME (sym));
282 sym2 = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym),
285 (struct symtab **) NULL);
288 print_variable_value (sym2, fi, stb->stream);
289 ui_out_field_stream (uiout, "value", stb);
290 do_cleanups (cleanup_tuple);
294 if (BLOCK_FUNCTION (block))
297 block = BLOCK_SUPERBLOCK (block);
299 do_cleanups (cleanup_list);
300 ui_out_stream_delete (stb);
304 mi_cmd_stack_select_frame (char *command, char **argv, int argc)
306 if (!target_has_stack)
307 error ("mi_cmd_stack_select_frame: No stack.");
310 error ("mi_cmd_stack_select_frame: Usage: [FRAME_SPEC]");
312 /* with no args, don't change frame */
314 select_frame_command_wrapper (0, 1 /* not used */ );
316 select_frame_command_wrapper (argv[0], 1 /* not used */ );