1 /* MI Command Set - stack commands.
2 Copyright (C) 2000, 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);
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 frame_info *fi;
51 if (!target_has_stack)
52 error ("mi_cmd_stack_list_frames: No stack.");
54 if (argc > 2 || argc == 1)
55 error ("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]");
59 frame_low = atoi (argv[0]);
60 frame_high = atoi (argv[1]);
64 /* Called with no arguments, it means we want the whole
70 /* Let's position fi on the frame at which to start the
71 display. Could be the innermost frame if the whole stack needs
72 displaying, or if frame_low is 0. */
73 for (i = 0, fi = get_current_frame ();
75 i++, fi = get_prev_frame (fi));
78 error ("mi_cmd_stack_list_frames: Not enough frames in stack.");
80 ui_out_list_begin (uiout, "stack");
82 /* Now let;s print the frames up to frame_high, or until there are
83 frames in the stack. */
85 fi && (i <= frame_high || frame_high == -1);
86 i++, fi = get_prev_frame (fi))
89 /* level == i: always print the level 'i'
90 source == LOC_AND_ADDRESS: print the location and the address
91 always, even for level 0.
92 args == 0: don't print the arguments. */
93 print_frame_info (fi /* frame info */ ,
95 LOC_AND_ADDRESS /* source */ ,
99 ui_out_list_end (uiout);
101 error ("mi_cmd_stack_list_frames: Not enough frames in stack.");
107 mi_cmd_stack_info_depth (char *command, char **argv, int argc)
111 struct frame_info *fi;
113 if (!target_has_stack)
114 error ("mi_cmd_stack_info_depth: No stack.");
117 error ("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]");
120 frame_high = atoi (argv[0]);
122 /* Called with no arguments, it means we want the real depth of
126 for (i = 0, fi = get_current_frame ();
127 fi && (i < frame_high || frame_high == -1);
128 i++, fi = get_prev_frame (fi))
131 ui_out_field_int (uiout, "depth", i);
136 /* Print a list of the locals for the current frame. With argument of
137 0, print only the names, with argument of 1 print also the
140 mi_cmd_stack_list_locals (char *command, char **argv, int argc)
143 error ("mi_cmd_stack_list_locals: Usage: PRINT_VALUES");
145 list_args_or_locals (1, atoi (argv[0]), selected_frame);
149 /* Print a list of the arguments for the current frame. With argument
150 of 0, print only the names, with argument of 1 print also the
153 mi_cmd_stack_list_args (char *command, char **argv, int argc)
158 struct frame_info *fi;
160 if (argc < 1 || argc > 3 || argc == 2)
161 error ("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]");
165 frame_low = atoi (argv[1]);
166 frame_high = atoi (argv[2]);
170 /* Called with no arguments, it means we want args for the whole
176 /* Let's position fi on the frame at which to start the
177 display. Could be the innermost frame if the whole stack needs
178 displaying, or if frame_low is 0. */
179 for (i = 0, fi = get_current_frame ();
181 i++, fi = get_prev_frame (fi));
184 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
186 ui_out_list_begin (uiout, "stack-args");
188 /* Now let's print the frames up to frame_high, or until there are
189 frames in the stack. */
191 fi && (i <= frame_high || frame_high == -1);
192 i++, fi = get_prev_frame (fi))
195 ui_out_list_begin (uiout, "frame");
196 ui_out_field_int (uiout, "level", i);
197 list_args_or_locals (0, atoi (argv[0]), fi);
198 ui_out_list_end (uiout);
201 ui_out_list_end (uiout);
203 error ("mi_cmd_stack_list_args: Not enough frames in stack.");
208 /* Print a list of the locals or the arguments for the currently
209 selected frame. If the argument passed is 0, printonly the names
210 of the variables, if an argument of 1 is passed, print the values
213 list_args_or_locals (int locals, int values, struct frame_info *fi)
219 static struct ui_stream *stb = NULL;
221 stb = ui_out_stream_new (uiout);
223 block = get_frame_block (fi);
225 ui_out_list_begin (uiout, locals ? "locals" : "args");
229 nsyms = BLOCK_NSYMS (block);
230 for (i = 0; i < nsyms; i++)
232 sym = BLOCK_SYM (block, i);
233 switch (SYMBOL_CLASS (sym))
236 case LOC_UNDEF: /* catches errors */
237 case LOC_CONST: /* constant */
238 case LOC_TYPEDEF: /* local typedef */
239 case LOC_LABEL: /* local label */
240 case LOC_BLOCK: /* local function */
241 case LOC_CONST_BYTES: /* loc. byte seq. */
242 case LOC_UNRESOLVED: /* unresolved static */
243 case LOC_OPTIMIZED_OUT: /* optimized out */
247 case LOC_ARG: /* argument */
248 case LOC_REF_ARG: /* reference arg */
249 case LOC_REGPARM: /* register arg */
250 case LOC_REGPARM_ADDR: /* indirect register arg */
251 case LOC_LOCAL_ARG: /* stack arg */
252 case LOC_BASEREG_ARG: /* basereg arg */
257 case LOC_LOCAL: /* stack local */
258 case LOC_BASEREG: /* basereg local */
259 case LOC_STATIC: /* static */
260 case LOC_REGISTER: /* register */
268 ui_out_list_begin (uiout, NULL);
269 ui_out_field_string (uiout, "name", SYMBOL_NAME (sym));
275 sym2 = lookup_symbol (SYMBOL_NAME (sym),
276 block, VAR_NAMESPACE,
278 (struct symtab **) NULL);
281 print_variable_value (sym2, fi, stb->stream);
282 ui_out_field_stream (uiout, "value", stb);
283 ui_out_list_end (uiout);
287 if (BLOCK_FUNCTION (block))
290 block = BLOCK_SUPERBLOCK (block);
292 ui_out_list_end (uiout);
293 ui_out_stream_delete (stb);
297 mi_cmd_stack_select_frame (char *command, char **argv, int argc)
300 if (!target_has_stack)
301 error ("mi_cmd_stack_select_frame: No stack.");
304 error ("mi_cmd_stack_select_frame: Usage: [FRAME_SPEC]");
306 /* with no args, don't change frame */
308 select_frame_command_wrapper (0, 1 /* not used */ );
310 select_frame_command_wrapper (argv[0], 1 /* not used */ );