Commit | Line | Data |
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fb40c209 | 1 | /* MI Command Set - stack commands. |
7b6bb8da | 2 | Copyright (C) 2000, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 |
6aba47ca | 3 | Free Software Foundation, Inc. |
ab91fdd5 | 4 | Contributed by Cygnus Solutions (a Red Hat company). |
fb40c209 AC |
5 | |
6 | This file is part of GDB. | |
7 | ||
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 | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
fb40c209 AC |
11 | (at your option) any later version. |
12 | ||
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. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
fb40c209 AC |
20 | |
21 | #include "defs.h" | |
22 | #include "target.h" | |
23 | #include "frame.h" | |
24 | #include "value.h" | |
25 | #include "mi-cmds.h" | |
26 | #include "ui-out.h" | |
e88c90f2 | 27 | #include "symtab.h" |
fe898f56 | 28 | #include "block.h" |
b9362cc7 | 29 | #include "stack.h" |
de4f826b | 30 | #include "dictionary.h" |
f5ec2042 | 31 | #include "gdb_string.h" |
d8ca156b | 32 | #include "language.h" |
79a45b7d | 33 | #include "valprint.h" |
875b4ff5 | 34 | #include "exceptions.h" |
daf3c977 VP |
35 | |
36 | enum what_to_list { locals, arguments, all }; | |
37 | ||
38 | static void list_args_or_locals (enum what_to_list what, | |
39 | int values, struct frame_info *fi); | |
fb40c209 AC |
40 | |
41 | /* Print a list of the stack frames. Args can be none, in which case | |
42 | we want to print the whole backtrace, or a pair of numbers | |
43 | specifying the frame numbers at which to start and stop the | |
44 | display. If the two numbers are equal, a single frame will be | |
45 | displayed. */ | |
ce8f13f8 | 46 | void |
fb40c209 AC |
47 | mi_cmd_stack_list_frames (char *command, char **argv, int argc) |
48 | { | |
49 | int frame_low; | |
50 | int frame_high; | |
51 | int i; | |
6ad4a2cf | 52 | struct cleanup *cleanup_stack; |
fb40c209 AC |
53 | struct frame_info *fi; |
54 | ||
fb40c209 | 55 | if (argc > 2 || argc == 1) |
1b05df00 | 56 | error (_("-stack-list-frames: Usage: [FRAME_LOW FRAME_HIGH]")); |
fb40c209 AC |
57 | |
58 | if (argc == 2) | |
59 | { | |
60 | frame_low = atoi (argv[0]); | |
61 | frame_high = atoi (argv[1]); | |
62 | } | |
63 | else | |
64 | { | |
65 | /* Called with no arguments, it means we want the whole | |
66 | backtrace. */ | |
67 | frame_low = -1; | |
68 | frame_high = -1; | |
69 | } | |
70 | ||
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 (); | |
75 | fi && i < frame_low; | |
76 | i++, fi = get_prev_frame (fi)); | |
77 | ||
78 | if (fi == NULL) | |
1b05df00 | 79 | error (_("-stack-list-frames: Not enough frames in stack.")); |
fb40c209 | 80 | |
6ad4a2cf | 81 | cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack"); |
fb40c209 AC |
82 | |
83 | /* Now let;s print the frames up to frame_high, or until there are | |
84 | frames in the stack. */ | |
85 | for (; | |
86 | fi && (i <= frame_high || frame_high == -1); | |
87 | i++, fi = get_prev_frame (fi)) | |
88 | { | |
89 | QUIT; | |
0faf0076 | 90 | /* Print the location and the address always, even for level 0. |
fb40c209 | 91 | args == 0: don't print the arguments. */ |
0faf0076 | 92 | print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */ ); |
fb40c209 AC |
93 | } |
94 | ||
6ad4a2cf | 95 | do_cleanups (cleanup_stack); |
fb40c209 AC |
96 | } |
97 | ||
ce8f13f8 | 98 | void |
fb40c209 AC |
99 | mi_cmd_stack_info_depth (char *command, char **argv, int argc) |
100 | { | |
101 | int frame_high; | |
102 | int i; | |
103 | struct frame_info *fi; | |
104 | ||
fb40c209 | 105 | if (argc > 1) |
1b05df00 | 106 | error (_("-stack-info-depth: Usage: [MAX_DEPTH]")); |
fb40c209 AC |
107 | |
108 | if (argc == 1) | |
109 | frame_high = atoi (argv[0]); | |
110 | else | |
111 | /* Called with no arguments, it means we want the real depth of | |
112 | the stack. */ | |
113 | frame_high = -1; | |
114 | ||
115 | for (i = 0, fi = get_current_frame (); | |
116 | fi && (i < frame_high || frame_high == -1); | |
117 | i++, fi = get_prev_frame (fi)) | |
118 | QUIT; | |
119 | ||
120 | ui_out_field_int (uiout, "depth", i); | |
fb40c209 AC |
121 | } |
122 | ||
8b777f02 VP |
123 | static enum print_values |
124 | parse_print_values (char *name) | |
125 | { | |
126 | if (strcmp (name, "0") == 0 | |
127 | || strcmp (name, mi_no_values) == 0) | |
128 | return PRINT_NO_VALUES; | |
129 | else if (strcmp (name, "1") == 0 | |
130 | || strcmp (name, mi_all_values) == 0) | |
131 | return PRINT_ALL_VALUES; | |
132 | else if (strcmp (name, "2") == 0 | |
133 | || strcmp (name, mi_simple_values) == 0) | |
134 | return PRINT_SIMPLE_VALUES; | |
135 | else | |
136 | error (_("Unknown value for PRINT_VALUES: must be: \ | |
137 | 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""), | |
138 | mi_no_values, mi_all_values, mi_simple_values); | |
139 | } | |
140 | ||
7a93fb82 | 141 | /* Print a list of the locals for the current frame. With argument of |
fb40c209 AC |
142 | 0, print only the names, with argument of 1 print also the |
143 | values. */ | |
ce8f13f8 | 144 | void |
fb40c209 AC |
145 | mi_cmd_stack_list_locals (char *command, char **argv, int argc) |
146 | { | |
f5ec2042 | 147 | struct frame_info *frame; |
f5ec2042 | 148 | |
fb40c209 | 149 | if (argc != 1) |
1b05df00 | 150 | error (_("-stack-list-locals: Usage: PRINT_VALUES")); |
fb40c209 | 151 | |
b04f3ab4 | 152 | frame = get_selected_frame (NULL); |
f5ec2042 | 153 | |
daf3c977 | 154 | list_args_or_locals (locals, parse_print_values (argv[0]), frame); |
fb40c209 AC |
155 | } |
156 | ||
7a93fb82 | 157 | /* Print a list of the arguments for the current frame. With argument |
fb40c209 AC |
158 | of 0, print only the names, with argument of 1 print also the |
159 | values. */ | |
ce8f13f8 | 160 | void |
fb40c209 AC |
161 | mi_cmd_stack_list_args (char *command, char **argv, int argc) |
162 | { | |
163 | int frame_low; | |
164 | int frame_high; | |
165 | int i; | |
166 | struct frame_info *fi; | |
6ad4a2cf | 167 | struct cleanup *cleanup_stack_args; |
8b777f02 | 168 | enum print_values print_values; |
fb40c209 AC |
169 | |
170 | if (argc < 1 || argc > 3 || argc == 2) | |
1b05df00 | 171 | error (_("-stack-list-arguments: Usage: " |
9a2b4c1b | 172 | "PRINT_VALUES [FRAME_LOW FRAME_HIGH]")); |
fb40c209 AC |
173 | |
174 | if (argc == 3) | |
175 | { | |
176 | frame_low = atoi (argv[1]); | |
177 | frame_high = atoi (argv[2]); | |
178 | } | |
179 | else | |
180 | { | |
181 | /* Called with no arguments, it means we want args for the whole | |
182 | backtrace. */ | |
183 | frame_low = -1; | |
184 | frame_high = -1; | |
185 | } | |
186 | ||
8b777f02 VP |
187 | print_values = parse_print_values (argv[0]); |
188 | ||
fb40c209 AC |
189 | /* Let's position fi on the frame at which to start the |
190 | display. Could be the innermost frame if the whole stack needs | |
191 | displaying, or if frame_low is 0. */ | |
192 | for (i = 0, fi = get_current_frame (); | |
193 | fi && i < frame_low; | |
194 | i++, fi = get_prev_frame (fi)); | |
195 | ||
196 | if (fi == NULL) | |
1b05df00 | 197 | error (_("-stack-list-arguments: Not enough frames in stack.")); |
fb40c209 | 198 | |
9a2b4c1b MS |
199 | cleanup_stack_args |
200 | = make_cleanup_ui_out_list_begin_end (uiout, "stack-args"); | |
fb40c209 AC |
201 | |
202 | /* Now let's print the frames up to frame_high, or until there are | |
203 | frames in the stack. */ | |
204 | for (; | |
205 | fi && (i <= frame_high || frame_high == -1); | |
206 | i++, fi = get_prev_frame (fi)) | |
207 | { | |
6ad4a2cf | 208 | struct cleanup *cleanup_frame; |
102040f0 | 209 | |
fb40c209 | 210 | QUIT; |
6ad4a2cf | 211 | cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
fb40c209 | 212 | ui_out_field_int (uiout, "level", i); |
daf3c977 | 213 | list_args_or_locals (arguments, print_values, fi); |
6ad4a2cf | 214 | do_cleanups (cleanup_frame); |
fb40c209 AC |
215 | } |
216 | ||
6ad4a2cf | 217 | do_cleanups (cleanup_stack_args); |
fb40c209 AC |
218 | } |
219 | ||
daf3c977 | 220 | /* Print a list of the local variables (including arguments) for the |
7a93fb82 VP |
221 | current frame. ARGC must be 1 and ARGV[0] specify if only the names, |
222 | or both names and values of the variables must be printed. See | |
223 | parse_print_value for possible values. */ | |
daf3c977 VP |
224 | void |
225 | mi_cmd_stack_list_variables (char *command, char **argv, int argc) | |
226 | { | |
227 | struct frame_info *frame; | |
daf3c977 VP |
228 | |
229 | if (argc != 1) | |
230 | error (_("Usage: PRINT_VALUES")); | |
231 | ||
7a93fb82 | 232 | frame = get_selected_frame (NULL); |
daf3c977 | 233 | |
7a93fb82 | 234 | list_args_or_locals (all, parse_print_values (argv[0]), frame); |
daf3c977 VP |
235 | } |
236 | ||
237 | ||
fb40c209 AC |
238 | /* Print a list of the locals or the arguments for the currently |
239 | selected frame. If the argument passed is 0, printonly the names | |
240 | of the variables, if an argument of 1 is passed, print the values | |
241 | as well. */ | |
242 | static void | |
daf3c977 | 243 | list_args_or_locals (enum what_to_list what, int values, struct frame_info *fi) |
fb40c209 AC |
244 | { |
245 | struct block *block; | |
246 | struct symbol *sym; | |
de4f826b | 247 | struct dict_iterator iter; |
6ad4a2cf | 248 | struct cleanup *cleanup_list; |
fb40c209 | 249 | static struct ui_stream *stb = NULL; |
f5ec2042 | 250 | struct type *type; |
daf3c977 | 251 | char *name_of_result; |
fb40c209 AC |
252 | |
253 | stb = ui_out_stream_new (uiout); | |
254 | ||
ae767bfb | 255 | block = get_frame_block (fi, 0); |
fb40c209 | 256 | |
daf3c977 VP |
257 | switch (what) |
258 | { | |
259 | case locals: | |
d6fd4674 PA |
260 | name_of_result = "locals"; |
261 | break; | |
daf3c977 | 262 | case arguments: |
d6fd4674 PA |
263 | name_of_result = "args"; |
264 | break; | |
daf3c977 | 265 | case all: |
d6fd4674 PA |
266 | name_of_result = "variables"; |
267 | break; | |
654e7c1f | 268 | default: |
d6fd4674 PA |
269 | internal_error (__FILE__, __LINE__, |
270 | "unexpected what_to_list: %d", (int) what); | |
daf3c977 VP |
271 | } |
272 | ||
273 | cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, name_of_result); | |
fb40c209 AC |
274 | |
275 | while (block != 0) | |
276 | { | |
de4f826b | 277 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
fb40c209 | 278 | { |
39bf4652 JB |
279 | int print_me = 0; |
280 | ||
fb40c209 AC |
281 | switch (SYMBOL_CLASS (sym)) |
282 | { | |
283 | default: | |
284 | case LOC_UNDEF: /* catches errors */ | |
285 | case LOC_CONST: /* constant */ | |
286 | case LOC_TYPEDEF: /* local typedef */ | |
287 | case LOC_LABEL: /* local label */ | |
288 | case LOC_BLOCK: /* local function */ | |
289 | case LOC_CONST_BYTES: /* loc. byte seq. */ | |
290 | case LOC_UNRESOLVED: /* unresolved static */ | |
291 | case LOC_OPTIMIZED_OUT: /* optimized out */ | |
292 | print_me = 0; | |
293 | break; | |
294 | ||
295 | case LOC_ARG: /* argument */ | |
296 | case LOC_REF_ARG: /* reference arg */ | |
fb40c209 | 297 | case LOC_REGPARM_ADDR: /* indirect register arg */ |
fb40c209 | 298 | case LOC_LOCAL: /* stack local */ |
fb40c209 AC |
299 | case LOC_STATIC: /* static */ |
300 | case LOC_REGISTER: /* register */ | |
4cf623b6 | 301 | case LOC_COMPUTED: /* computed location */ |
daf3c977 | 302 | if (what == all) |
fb40c209 | 303 | print_me = 1; |
daf3c977 VP |
304 | else if (what == locals) |
305 | print_me = !SYMBOL_IS_ARGUMENT (sym); | |
306 | else | |
307 | print_me = SYMBOL_IS_ARGUMENT (sym); | |
fb40c209 AC |
308 | break; |
309 | } | |
310 | if (print_me) | |
311 | { | |
6ad4a2cf | 312 | struct cleanup *cleanup_tuple = NULL; |
6bb0384f | 313 | struct symbol *sym2; |
9fbcbb40 | 314 | struct value *val; |
102040f0 | 315 | |
7a93fb82 | 316 | if (values != PRINT_NO_VALUES || what == all) |
f5ec2042 | 317 | cleanup_tuple = |
6ad4a2cf | 318 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
f5ec2042 | 319 | ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym)); |
7a93fb82 VP |
320 | if (what == all && SYMBOL_IS_ARGUMENT (sym)) |
321 | ui_out_field_int (uiout, "arg", 1); | |
fb40c209 | 322 | |
daf3c977 | 323 | if (SYMBOL_IS_ARGUMENT (sym)) |
f5ec2042 NR |
324 | sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym), |
325 | block, VAR_DOMAIN, | |
2570f2b7 | 326 | (int *) NULL); |
f5ec2042 | 327 | else |
2a2d4dc3 | 328 | sym2 = sym; |
f5ec2042 NR |
329 | switch (values) |
330 | { | |
331 | case PRINT_SIMPLE_VALUES: | |
332 | type = check_typedef (sym2->type); | |
333 | type_print (sym2->type, "", stb->stream, -1); | |
334 | ui_out_field_stream (uiout, "type", stb); | |
335 | if (TYPE_CODE (type) != TYPE_CODE_ARRAY | |
336 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
337 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
338 | { | |
875b4ff5 PM |
339 | volatile struct gdb_exception except; |
340 | ||
341 | TRY_CATCH (except, RETURN_MASK_ERROR) | |
342 | { | |
343 | struct value_print_options opts; | |
344 | ||
345 | val = read_var_value (sym2, fi); | |
346 | get_raw_print_options (&opts); | |
347 | opts.deref_ref = 1; | |
348 | common_val_print | |
349 | (val, stb->stream, 0, &opts, | |
350 | language_def (SYMBOL_LANGUAGE (sym2))); | |
351 | } | |
352 | if (except.reason < 0) | |
353 | fprintf_filtered (stb->stream, | |
354 | _("<error reading variable: %s>"), | |
355 | except.message); | |
356 | ||
f5ec2042 NR |
357 | ui_out_field_stream (uiout, "value", stb); |
358 | } | |
f5ec2042 NR |
359 | break; |
360 | case PRINT_ALL_VALUES: | |
79a45b7d | 361 | { |
875b4ff5 PM |
362 | volatile struct gdb_exception except; |
363 | ||
364 | TRY_CATCH (except, RETURN_MASK_ERROR) | |
365 | { | |
366 | struct value_print_options opts; | |
367 | ||
368 | val = read_var_value (sym2, fi); | |
369 | get_raw_print_options (&opts); | |
370 | opts.deref_ref = 1; | |
371 | common_val_print | |
372 | (val, stb->stream, 0, &opts, | |
373 | language_def (SYMBOL_LANGUAGE (sym2))); | |
374 | } | |
375 | if (except.reason < 0) | |
376 | fprintf_filtered (stb->stream, | |
377 | _("<error reading variable: %s>"), | |
378 | except.message); | |
379 | ||
79a45b7d | 380 | ui_out_field_stream (uiout, "value", stb); |
79a45b7d | 381 | } |
f5ec2042 | 382 | break; |
fb40c209 | 383 | } |
7a93fb82 VP |
384 | |
385 | if (values != PRINT_NO_VALUES || what == all) | |
386 | do_cleanups (cleanup_tuple); | |
fb40c209 AC |
387 | } |
388 | } | |
389 | if (BLOCK_FUNCTION (block)) | |
390 | break; | |
391 | else | |
392 | block = BLOCK_SUPERBLOCK (block); | |
393 | } | |
6ad4a2cf | 394 | do_cleanups (cleanup_list); |
fb40c209 AC |
395 | ui_out_stream_delete (stb); |
396 | } | |
397 | ||
ce8f13f8 | 398 | void |
fb40c209 AC |
399 | mi_cmd_stack_select_frame (char *command, char **argv, int argc) |
400 | { | |
fcf43932 | 401 | if (argc == 0 || argc > 1) |
1b05df00 | 402 | error (_("-stack-select-frame: Usage: FRAME_SPEC")); |
fb40c209 | 403 | |
fcf43932 | 404 | select_frame_command (argv[0], 1 /* not used */ ); |
fb40c209 | 405 | } |
64fd8944 | 406 | |
ce8f13f8 | 407 | void |
64fd8944 NR |
408 | mi_cmd_stack_info_frame (char *command, char **argv, int argc) |
409 | { | |
410 | if (argc > 0) | |
1b05df00 | 411 | error (_("-stack-info-frame: No arguments required")); |
ce8f13f8 | 412 | |
64fd8944 | 413 | print_frame_info (get_selected_frame (NULL), 1, LOC_AND_ADDRESS, 0); |
64fd8944 | 414 | } |