1 /* MI Command Set - stack commands.
2 Copyright 2000, 2002 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. */
30 /* FIXME: these should go in some .h file but stack.c doesn't have a
31 corresponding .h file. These wrappers will be obsolete anyway, once
32 we pull the plug on the sanitization. */
33 extern void select_frame_command_wrapper (char *, int);
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 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 ui_out_list_begin (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 ui_out_list_end (uiout);
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)
142 error ("mi_cmd_stack_list_locals: Usage: PRINT_VALUES");
144 list_args_or_locals (1, atoi (argv[0]), selected_frame);
148 /* Print a list of the arguments for the current frame. With argument
149 of 0, print only the names, with argument of 1 print also the
152 mi_cmd_stack_list_args (char *command, char **argv, int argc)
157 struct frame_info *fi;
159 if (argc < 1 || argc > 3 || argc == 2)
160 error ("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]");
164 frame_low = atoi (argv[1]);
165 frame_high = atoi (argv[2]);
169 /* Called with no arguments, it means we want args for the whole
175 /* Let's position fi on the frame at which to start the
176 display. Could be the innermost frame if the whole stack needs
177 displaying, or if frame_low is 0. */
178 for (i = 0, fi = get_current_frame ();
180 i++, fi = get_prev_frame (fi));
183 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
185 ui_out_list_begin (uiout, "stack-args");
187 /* Now let's print the frames up to frame_high, or until there are
188 frames in the stack. */
190 fi && (i <= frame_high || frame_high == -1);
191 i++, fi = get_prev_frame (fi))
194 ui_out_tuple_begin (uiout, "frame");
195 ui_out_field_int (uiout, "level", i);
196 list_args_or_locals (0, atoi (argv[0]), fi);
197 ui_out_tuple_end (uiout);
200 ui_out_list_end (uiout);
202 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
207 /* Print a list of the locals or the arguments for the currently
208 selected frame. If the argument passed is 0, printonly the names
209 of the variables, if an argument of 1 is passed, print the values
212 list_args_or_locals (int locals, int values, struct frame_info *fi)
218 static struct ui_stream *stb = NULL;
220 stb = ui_out_stream_new (uiout);
222 block = get_frame_block (fi);
224 ui_out_list_begin (uiout, locals ? "locals" : "args");
228 ALL_BLOCK_SYMBOLS (block, i, sym)
230 switch (SYMBOL_CLASS (sym))
233 case LOC_UNDEF: /* catches errors */
234 case LOC_CONST: /* constant */
235 case LOC_TYPEDEF: /* local typedef */
236 case LOC_LABEL: /* local label */
237 case LOC_BLOCK: /* local function */
238 case LOC_CONST_BYTES: /* loc. byte seq. */
239 case LOC_UNRESOLVED: /* unresolved static */
240 case LOC_OPTIMIZED_OUT: /* optimized out */
244 case LOC_ARG: /* argument */
245 case LOC_REF_ARG: /* reference arg */
246 case LOC_REGPARM: /* register arg */
247 case LOC_REGPARM_ADDR: /* indirect register arg */
248 case LOC_LOCAL_ARG: /* stack arg */
249 case LOC_BASEREG_ARG: /* basereg arg */
254 case LOC_LOCAL: /* stack local */
255 case LOC_BASEREG: /* basereg local */
256 case LOC_STATIC: /* static */
257 case LOC_REGISTER: /* register */
265 ui_out_tuple_begin (uiout, NULL);
266 ui_out_field_string (uiout, "name", SYMBOL_NAME (sym));
272 sym2 = lookup_symbol (SYMBOL_NAME (sym),
273 block, VAR_NAMESPACE,
275 (struct symtab **) NULL);
278 print_variable_value (sym2, fi, stb->stream);
279 ui_out_field_stream (uiout, "value", stb);
280 ui_out_tuple_end (uiout);
284 if (BLOCK_FUNCTION (block))
287 block = BLOCK_SUPERBLOCK (block);
289 ui_out_list_end (uiout);
290 ui_out_stream_delete (stb);
294 mi_cmd_stack_select_frame (char *command, char **argv, int argc)
296 if (!target_has_stack)
297 error ("mi_cmd_stack_select_frame: No stack.");
300 error ("mi_cmd_stack_select_frame: Usage: [FRAME_SPEC]");
302 /* with no args, don't change frame */
304 select_frame_command_wrapper (0, 1 /* not used */ );
306 select_frame_command_wrapper (argv[0], 1 /* not used */ );