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fb40c209 | 1 | /* MI Command Set - stack commands. |
22abf04a | 2 | Copyright 2000, 2002, 2003 Free Software Foundation, Inc. |
ab91fdd5 | 3 | Contributed by Cygnus Solutions (a Red Hat company). |
fb40c209 AC |
4 | |
5 | This file is part of GDB. | |
6 | ||
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. | |
11 | ||
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. | |
16 | ||
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. */ | |
21 | ||
22 | #include "defs.h" | |
23 | #include "target.h" | |
24 | #include "frame.h" | |
25 | #include "value.h" | |
26 | #include "mi-cmds.h" | |
27 | #include "ui-out.h" | |
e88c90f2 | 28 | #include "symtab.h" |
fe898f56 | 29 | #include "block.h" |
b9362cc7 | 30 | #include "stack.h" |
fb40c209 AC |
31 | |
32 | static void list_args_or_locals (int locals, int values, struct frame_info *fi); | |
33 | ||
34 | /* Print a list of the stack frames. Args can be none, in which case | |
35 | we want to print the whole backtrace, or a pair of numbers | |
36 | specifying the frame numbers at which to start and stop the | |
37 | display. If the two numbers are equal, a single frame will be | |
38 | displayed. */ | |
39 | enum mi_cmd_result | |
40 | mi_cmd_stack_list_frames (char *command, char **argv, int argc) | |
41 | { | |
42 | int frame_low; | |
43 | int frame_high; | |
44 | int i; | |
6ad4a2cf | 45 | struct cleanup *cleanup_stack; |
fb40c209 AC |
46 | struct frame_info *fi; |
47 | ||
48 | if (!target_has_stack) | |
49 | error ("mi_cmd_stack_list_frames: No stack."); | |
50 | ||
51 | if (argc > 2 || argc == 1) | |
52 | error ("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]"); | |
53 | ||
54 | if (argc == 2) | |
55 | { | |
56 | frame_low = atoi (argv[0]); | |
57 | frame_high = atoi (argv[1]); | |
58 | } | |
59 | else | |
60 | { | |
61 | /* Called with no arguments, it means we want the whole | |
62 | backtrace. */ | |
63 | frame_low = -1; | |
64 | frame_high = -1; | |
65 | } | |
66 | ||
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 (); | |
71 | fi && i < frame_low; | |
72 | i++, fi = get_prev_frame (fi)); | |
73 | ||
74 | if (fi == NULL) | |
75 | error ("mi_cmd_stack_list_frames: Not enough frames in stack."); | |
76 | ||
6ad4a2cf | 77 | cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack"); |
fb40c209 AC |
78 | |
79 | /* Now let;s print the frames up to frame_high, or until there are | |
80 | frames in the stack. */ | |
81 | for (; | |
82 | fi && (i <= frame_high || frame_high == -1); | |
83 | i++, fi = get_prev_frame (fi)) | |
84 | { | |
85 | QUIT; | |
86 | /* level == i: always print the level 'i' | |
87 | source == LOC_AND_ADDRESS: print the location and the address | |
88 | always, even for level 0. | |
89 | args == 0: don't print the arguments. */ | |
90 | print_frame_info (fi /* frame info */ , | |
91 | i /* level */ , | |
92 | LOC_AND_ADDRESS /* source */ , | |
93 | 0 /* args */ ); | |
94 | } | |
95 | ||
6ad4a2cf | 96 | do_cleanups (cleanup_stack); |
fb40c209 AC |
97 | if (i < frame_high) |
98 | error ("mi_cmd_stack_list_frames: Not enough frames in stack."); | |
99 | ||
100 | return MI_CMD_DONE; | |
101 | } | |
102 | ||
103 | enum mi_cmd_result | |
104 | mi_cmd_stack_info_depth (char *command, char **argv, int argc) | |
105 | { | |
106 | int frame_high; | |
107 | int i; | |
108 | struct frame_info *fi; | |
109 | ||
110 | if (!target_has_stack) | |
111 | error ("mi_cmd_stack_info_depth: No stack."); | |
112 | ||
113 | if (argc > 1) | |
114 | error ("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]"); | |
115 | ||
116 | if (argc == 1) | |
117 | frame_high = atoi (argv[0]); | |
118 | else | |
119 | /* Called with no arguments, it means we want the real depth of | |
120 | the stack. */ | |
121 | frame_high = -1; | |
122 | ||
123 | for (i = 0, fi = get_current_frame (); | |
124 | fi && (i < frame_high || frame_high == -1); | |
125 | i++, fi = get_prev_frame (fi)) | |
126 | QUIT; | |
127 | ||
128 | ui_out_field_int (uiout, "depth", i); | |
129 | ||
130 | return MI_CMD_DONE; | |
131 | } | |
132 | ||
133 | /* Print a list of the locals for the current frame. With argument of | |
134 | 0, print only the names, with argument of 1 print also the | |
135 | values. */ | |
136 | enum mi_cmd_result | |
137 | mi_cmd_stack_list_locals (char *command, char **argv, int argc) | |
138 | { | |
139 | if (argc != 1) | |
140 | error ("mi_cmd_stack_list_locals: Usage: PRINT_VALUES"); | |
141 | ||
6e7f8b9c | 142 | list_args_or_locals (1, atoi (argv[0]), deprecated_selected_frame); |
fb40c209 AC |
143 | return MI_CMD_DONE; |
144 | } | |
145 | ||
146 | /* Print a list of the arguments for the current frame. With argument | |
147 | of 0, print only the names, with argument of 1 print also the | |
148 | values. */ | |
149 | enum mi_cmd_result | |
150 | mi_cmd_stack_list_args (char *command, char **argv, int argc) | |
151 | { | |
152 | int frame_low; | |
153 | int frame_high; | |
154 | int i; | |
155 | struct frame_info *fi; | |
6ad4a2cf | 156 | struct cleanup *cleanup_stack_args; |
fb40c209 AC |
157 | |
158 | if (argc < 1 || argc > 3 || argc == 2) | |
159 | error ("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]"); | |
160 | ||
161 | if (argc == 3) | |
162 | { | |
163 | frame_low = atoi (argv[1]); | |
164 | frame_high = atoi (argv[2]); | |
165 | } | |
166 | else | |
167 | { | |
168 | /* Called with no arguments, it means we want args for the whole | |
169 | backtrace. */ | |
170 | frame_low = -1; | |
171 | frame_high = -1; | |
172 | } | |
173 | ||
174 | /* Let's position fi on the frame at which to start the | |
175 | display. Could be the innermost frame if the whole stack needs | |
176 | displaying, or if frame_low is 0. */ | |
177 | for (i = 0, fi = get_current_frame (); | |
178 | fi && i < frame_low; | |
179 | i++, fi = get_prev_frame (fi)); | |
180 | ||
181 | if (fi == NULL) | |
182 | error ("mi_cmd_stack_list_args: Not enough frames in stack."); | |
183 | ||
6ad4a2cf | 184 | cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args"); |
fb40c209 AC |
185 | |
186 | /* Now let's print the frames up to frame_high, or until there are | |
187 | frames in the stack. */ | |
188 | for (; | |
189 | fi && (i <= frame_high || frame_high == -1); | |
190 | i++, fi = get_prev_frame (fi)) | |
191 | { | |
6ad4a2cf | 192 | struct cleanup *cleanup_frame; |
fb40c209 | 193 | QUIT; |
6ad4a2cf | 194 | cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
fb40c209 AC |
195 | ui_out_field_int (uiout, "level", i); |
196 | list_args_or_locals (0, atoi (argv[0]), fi); | |
6ad4a2cf | 197 | do_cleanups (cleanup_frame); |
fb40c209 AC |
198 | } |
199 | ||
6ad4a2cf | 200 | do_cleanups (cleanup_stack_args); |
fb40c209 AC |
201 | if (i < frame_high) |
202 | error ("mi_cmd_stack_list_args: Not enough frames in stack."); | |
203 | ||
204 | return MI_CMD_DONE; | |
205 | } | |
206 | ||
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 | |
210 | as well. */ | |
211 | static void | |
212 | list_args_or_locals (int locals, int values, struct frame_info *fi) | |
213 | { | |
214 | struct block *block; | |
215 | struct symbol *sym; | |
216 | int i, nsyms; | |
6ad4a2cf | 217 | struct cleanup *cleanup_list; |
fb40c209 AC |
218 | static struct ui_stream *stb = NULL; |
219 | ||
220 | stb = ui_out_stream_new (uiout); | |
221 | ||
ae767bfb | 222 | block = get_frame_block (fi, 0); |
fb40c209 | 223 | |
6ad4a2cf | 224 | cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args"); |
fb40c209 AC |
225 | |
226 | while (block != 0) | |
227 | { | |
e88c90f2 | 228 | ALL_BLOCK_SYMBOLS (block, i, sym) |
fb40c209 | 229 | { |
39bf4652 JB |
230 | int print_me = 0; |
231 | ||
fb40c209 AC |
232 | switch (SYMBOL_CLASS (sym)) |
233 | { | |
234 | default: | |
235 | case LOC_UNDEF: /* catches errors */ | |
236 | case LOC_CONST: /* constant */ | |
237 | case LOC_TYPEDEF: /* local typedef */ | |
238 | case LOC_LABEL: /* local label */ | |
239 | case LOC_BLOCK: /* local function */ | |
240 | case LOC_CONST_BYTES: /* loc. byte seq. */ | |
241 | case LOC_UNRESOLVED: /* unresolved static */ | |
242 | case LOC_OPTIMIZED_OUT: /* optimized out */ | |
243 | print_me = 0; | |
244 | break; | |
245 | ||
246 | case LOC_ARG: /* argument */ | |
247 | case LOC_REF_ARG: /* reference arg */ | |
248 | case LOC_REGPARM: /* register arg */ | |
249 | case LOC_REGPARM_ADDR: /* indirect register arg */ | |
250 | case LOC_LOCAL_ARG: /* stack arg */ | |
251 | case LOC_BASEREG_ARG: /* basereg arg */ | |
4cf623b6 | 252 | case LOC_COMPUTED_ARG: /* arg with computed location */ |
fb40c209 AC |
253 | if (!locals) |
254 | print_me = 1; | |
255 | break; | |
256 | ||
257 | case LOC_LOCAL: /* stack local */ | |
258 | case LOC_BASEREG: /* basereg local */ | |
259 | case LOC_STATIC: /* static */ | |
260 | case LOC_REGISTER: /* register */ | |
4cf623b6 | 261 | case LOC_COMPUTED: /* computed location */ |
fb40c209 AC |
262 | if (locals) |
263 | print_me = 1; | |
264 | break; | |
265 | } | |
266 | if (print_me) | |
267 | { | |
6ad4a2cf | 268 | struct cleanup *cleanup_tuple = NULL; |
fb40c209 | 269 | if (values) |
6ad4a2cf JJ |
270 | cleanup_tuple = |
271 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
22abf04a | 272 | ui_out_field_string (uiout, "name", DEPRECATED_SYMBOL_NAME (sym)); |
fb40c209 AC |
273 | |
274 | if (values) | |
275 | { | |
276 | struct symbol *sym2; | |
277 | if (!locals) | |
22abf04a | 278 | sym2 = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
176620f1 | 279 | block, VAR_DOMAIN, |
fb40c209 AC |
280 | (int *) NULL, |
281 | (struct symtab **) NULL); | |
282 | else | |
283 | sym2 = sym; | |
284 | print_variable_value (sym2, fi, stb->stream); | |
285 | ui_out_field_stream (uiout, "value", stb); | |
6ad4a2cf | 286 | do_cleanups (cleanup_tuple); |
fb40c209 AC |
287 | } |
288 | } | |
289 | } | |
290 | if (BLOCK_FUNCTION (block)) | |
291 | break; | |
292 | else | |
293 | block = BLOCK_SUPERBLOCK (block); | |
294 | } | |
6ad4a2cf | 295 | do_cleanups (cleanup_list); |
fb40c209 AC |
296 | ui_out_stream_delete (stb); |
297 | } | |
298 | ||
299 | enum mi_cmd_result | |
300 | mi_cmd_stack_select_frame (char *command, char **argv, int argc) | |
301 | { | |
fb40c209 AC |
302 | if (!target_has_stack) |
303 | error ("mi_cmd_stack_select_frame: No stack."); | |
304 | ||
305 | if (argc > 1) | |
306 | error ("mi_cmd_stack_select_frame: Usage: [FRAME_SPEC]"); | |
307 | ||
308 | /* with no args, don't change frame */ | |
309 | if (argc == 0) | |
b9362cc7 | 310 | select_frame_command (0, 1 /* not used */ ); |
fb40c209 | 311 | else |
b9362cc7 | 312 | select_frame_command (argv[0], 1 /* not used */ ); |
fb40c209 AC |
313 | return MI_CMD_DONE; |
314 | } |