Commit | Line | Data |
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fb40c209 | 1 | /* MI Command Set - stack commands. |
ad274983 | 2 | Copyright 2000, 2002, 2003, 2004 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" |
de4f826b | 31 | #include "dictionary.h" |
f5ec2042 | 32 | #include "gdb_string.h" |
fb40c209 AC |
33 | |
34 | static void list_args_or_locals (int locals, int values, struct frame_info *fi); | |
35 | ||
36 | /* Print a list of the stack frames. Args can be none, in which case | |
37 | we want to print the whole backtrace, or a pair of numbers | |
38 | specifying the frame numbers at which to start and stop the | |
39 | display. If the two numbers are equal, a single frame will be | |
40 | displayed. */ | |
41 | enum mi_cmd_result | |
42 | mi_cmd_stack_list_frames (char *command, char **argv, int argc) | |
43 | { | |
44 | int frame_low; | |
45 | int frame_high; | |
46 | int i; | |
6ad4a2cf | 47 | struct cleanup *cleanup_stack; |
fb40c209 AC |
48 | struct frame_info *fi; |
49 | ||
50 | if (!target_has_stack) | |
51 | error ("mi_cmd_stack_list_frames: No stack."); | |
52 | ||
53 | if (argc > 2 || argc == 1) | |
54 | error ("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]"); | |
55 | ||
56 | if (argc == 2) | |
57 | { | |
58 | frame_low = atoi (argv[0]); | |
59 | frame_high = atoi (argv[1]); | |
60 | } | |
61 | else | |
62 | { | |
63 | /* Called with no arguments, it means we want the whole | |
64 | backtrace. */ | |
65 | frame_low = -1; | |
66 | frame_high = -1; | |
67 | } | |
68 | ||
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 (); | |
73 | fi && i < frame_low; | |
74 | i++, fi = get_prev_frame (fi)); | |
75 | ||
76 | if (fi == NULL) | |
77 | error ("mi_cmd_stack_list_frames: Not enough frames in stack."); | |
78 | ||
6ad4a2cf | 79 | cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack"); |
fb40c209 AC |
80 | |
81 | /* Now let;s print the frames up to frame_high, or until there are | |
82 | frames in the stack. */ | |
83 | for (; | |
84 | fi && (i <= frame_high || frame_high == -1); | |
85 | i++, fi = get_prev_frame (fi)) | |
86 | { | |
87 | QUIT; | |
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 */ , | |
93 | i /* level */ , | |
94 | LOC_AND_ADDRESS /* source */ , | |
95 | 0 /* args */ ); | |
96 | } | |
97 | ||
6ad4a2cf | 98 | do_cleanups (cleanup_stack); |
fb40c209 AC |
99 | if (i < frame_high) |
100 | error ("mi_cmd_stack_list_frames: Not enough frames in stack."); | |
101 | ||
102 | return MI_CMD_DONE; | |
103 | } | |
104 | ||
105 | enum mi_cmd_result | |
106 | mi_cmd_stack_info_depth (char *command, char **argv, int argc) | |
107 | { | |
108 | int frame_high; | |
109 | int i; | |
110 | struct frame_info *fi; | |
111 | ||
112 | if (!target_has_stack) | |
113 | error ("mi_cmd_stack_info_depth: No stack."); | |
114 | ||
115 | if (argc > 1) | |
116 | error ("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]"); | |
117 | ||
118 | if (argc == 1) | |
119 | frame_high = atoi (argv[0]); | |
120 | else | |
121 | /* Called with no arguments, it means we want the real depth of | |
122 | the stack. */ | |
123 | frame_high = -1; | |
124 | ||
125 | for (i = 0, fi = get_current_frame (); | |
126 | fi && (i < frame_high || frame_high == -1); | |
127 | i++, fi = get_prev_frame (fi)) | |
128 | QUIT; | |
129 | ||
130 | ui_out_field_int (uiout, "depth", i); | |
131 | ||
132 | return MI_CMD_DONE; | |
133 | } | |
134 | ||
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 | |
137 | values. */ | |
138 | enum mi_cmd_result | |
139 | mi_cmd_stack_list_locals (char *command, char **argv, int argc) | |
140 | { | |
f5ec2042 NR |
141 | struct frame_info *frame; |
142 | enum print_values print_values; | |
143 | ||
fb40c209 AC |
144 | if (argc != 1) |
145 | error ("mi_cmd_stack_list_locals: Usage: PRINT_VALUES"); | |
146 | ||
f5ec2042 NR |
147 | frame = get_selected_frame (); |
148 | ||
149 | if (strcmp (argv[0], "0") == 0 | |
150 | || strcmp (argv[0], "--no-values") == 0) | |
151 | print_values = PRINT_NO_VALUES; | |
152 | else if (strcmp (argv[0], "1") == 0 | |
153 | || strcmp (argv[0], "--all-values") == 0) | |
154 | print_values = PRINT_ALL_VALUES; | |
155 | else if (strcmp (argv[0], "2") == 0 | |
156 | || strcmp (argv[0], "--simple-values") == 0) | |
157 | print_values = PRINT_SIMPLE_VALUES; | |
158 | else | |
159 | error ("Unknown value for PRINT_VALUES: must be: 0 or \"--no-values\", 1 or \"--all-values\", 2 or \"--simple-values\""); | |
160 | list_args_or_locals (1, print_values, frame); | |
fb40c209 AC |
161 | return MI_CMD_DONE; |
162 | } | |
163 | ||
164 | /* Print a list of the arguments for the current frame. With argument | |
165 | of 0, print only the names, with argument of 1 print also the | |
166 | values. */ | |
167 | enum mi_cmd_result | |
168 | mi_cmd_stack_list_args (char *command, char **argv, int argc) | |
169 | { | |
170 | int frame_low; | |
171 | int frame_high; | |
172 | int i; | |
173 | struct frame_info *fi; | |
6ad4a2cf | 174 | struct cleanup *cleanup_stack_args; |
fb40c209 AC |
175 | |
176 | if (argc < 1 || argc > 3 || argc == 2) | |
177 | error ("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]"); | |
178 | ||
179 | if (argc == 3) | |
180 | { | |
181 | frame_low = atoi (argv[1]); | |
182 | frame_high = atoi (argv[2]); | |
183 | } | |
184 | else | |
185 | { | |
186 | /* Called with no arguments, it means we want args for the whole | |
187 | backtrace. */ | |
188 | frame_low = -1; | |
189 | frame_high = -1; | |
190 | } | |
191 | ||
192 | /* Let's position fi on the frame at which to start the | |
193 | display. Could be the innermost frame if the whole stack needs | |
194 | displaying, or if frame_low is 0. */ | |
195 | for (i = 0, fi = get_current_frame (); | |
196 | fi && i < frame_low; | |
197 | i++, fi = get_prev_frame (fi)); | |
198 | ||
199 | if (fi == NULL) | |
200 | error ("mi_cmd_stack_list_args: Not enough frames in stack."); | |
201 | ||
6ad4a2cf | 202 | cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args"); |
fb40c209 AC |
203 | |
204 | /* Now let's print the frames up to frame_high, or until there are | |
205 | frames in the stack. */ | |
206 | for (; | |
207 | fi && (i <= frame_high || frame_high == -1); | |
208 | i++, fi = get_prev_frame (fi)) | |
209 | { | |
6ad4a2cf | 210 | struct cleanup *cleanup_frame; |
fb40c209 | 211 | QUIT; |
6ad4a2cf | 212 | cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
fb40c209 AC |
213 | ui_out_field_int (uiout, "level", i); |
214 | list_args_or_locals (0, atoi (argv[0]), fi); | |
6ad4a2cf | 215 | do_cleanups (cleanup_frame); |
fb40c209 AC |
216 | } |
217 | ||
6ad4a2cf | 218 | do_cleanups (cleanup_stack_args); |
fb40c209 AC |
219 | if (i < frame_high) |
220 | error ("mi_cmd_stack_list_args: Not enough frames in stack."); | |
221 | ||
222 | return MI_CMD_DONE; | |
223 | } | |
224 | ||
225 | /* Print a list of the locals or the arguments for the currently | |
226 | selected frame. If the argument passed is 0, printonly the names | |
227 | of the variables, if an argument of 1 is passed, print the values | |
228 | as well. */ | |
229 | static void | |
230 | list_args_or_locals (int locals, int values, struct frame_info *fi) | |
231 | { | |
232 | struct block *block; | |
233 | struct symbol *sym; | |
de4f826b DC |
234 | struct dict_iterator iter; |
235 | int nsyms; | |
6ad4a2cf | 236 | struct cleanup *cleanup_list; |
fb40c209 | 237 | static struct ui_stream *stb = NULL; |
f5ec2042 | 238 | struct type *type; |
fb40c209 AC |
239 | |
240 | stb = ui_out_stream_new (uiout); | |
241 | ||
ae767bfb | 242 | block = get_frame_block (fi, 0); |
fb40c209 | 243 | |
6ad4a2cf | 244 | cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args"); |
fb40c209 AC |
245 | |
246 | while (block != 0) | |
247 | { | |
de4f826b | 248 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
fb40c209 | 249 | { |
39bf4652 JB |
250 | int print_me = 0; |
251 | ||
fb40c209 AC |
252 | switch (SYMBOL_CLASS (sym)) |
253 | { | |
254 | default: | |
255 | case LOC_UNDEF: /* catches errors */ | |
256 | case LOC_CONST: /* constant */ | |
257 | case LOC_TYPEDEF: /* local typedef */ | |
258 | case LOC_LABEL: /* local label */ | |
259 | case LOC_BLOCK: /* local function */ | |
260 | case LOC_CONST_BYTES: /* loc. byte seq. */ | |
261 | case LOC_UNRESOLVED: /* unresolved static */ | |
262 | case LOC_OPTIMIZED_OUT: /* optimized out */ | |
263 | print_me = 0; | |
264 | break; | |
265 | ||
266 | case LOC_ARG: /* argument */ | |
267 | case LOC_REF_ARG: /* reference arg */ | |
268 | case LOC_REGPARM: /* register arg */ | |
269 | case LOC_REGPARM_ADDR: /* indirect register arg */ | |
270 | case LOC_LOCAL_ARG: /* stack arg */ | |
271 | case LOC_BASEREG_ARG: /* basereg arg */ | |
4cf623b6 | 272 | case LOC_COMPUTED_ARG: /* arg with computed location */ |
fb40c209 AC |
273 | if (!locals) |
274 | print_me = 1; | |
275 | break; | |
276 | ||
277 | case LOC_LOCAL: /* stack local */ | |
278 | case LOC_BASEREG: /* basereg local */ | |
279 | case LOC_STATIC: /* static */ | |
280 | case LOC_REGISTER: /* register */ | |
4cf623b6 | 281 | case LOC_COMPUTED: /* computed location */ |
fb40c209 AC |
282 | if (locals) |
283 | print_me = 1; | |
284 | break; | |
285 | } | |
286 | if (print_me) | |
287 | { | |
6ad4a2cf | 288 | struct cleanup *cleanup_tuple = NULL; |
6bb0384f | 289 | struct symbol *sym2; |
f5ec2042 NR |
290 | if (values != PRINT_NO_VALUES) |
291 | cleanup_tuple = | |
6ad4a2cf | 292 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
f5ec2042 | 293 | ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym)); |
fb40c209 | 294 | |
f5ec2042 NR |
295 | if (!locals) |
296 | sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym), | |
297 | block, VAR_DOMAIN, | |
298 | (int *) NULL, | |
299 | (struct symtab **) NULL); | |
300 | else | |
fb40c209 | 301 | sym2 = sym; |
f5ec2042 NR |
302 | switch (values) |
303 | { | |
304 | case PRINT_SIMPLE_VALUES: | |
305 | type = check_typedef (sym2->type); | |
306 | type_print (sym2->type, "", stb->stream, -1); | |
307 | ui_out_field_stream (uiout, "type", stb); | |
308 | if (TYPE_CODE (type) != TYPE_CODE_ARRAY | |
309 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
310 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
311 | { | |
312 | print_variable_value (sym2, fi, stb->stream); | |
313 | ui_out_field_stream (uiout, "value", stb); | |
314 | } | |
315 | do_cleanups (cleanup_tuple); | |
316 | break; | |
317 | case PRINT_ALL_VALUES: | |
fb40c209 AC |
318 | print_variable_value (sym2, fi, stb->stream); |
319 | ui_out_field_stream (uiout, "value", stb); | |
6ad4a2cf | 320 | do_cleanups (cleanup_tuple); |
f5ec2042 | 321 | break; |
fb40c209 AC |
322 | } |
323 | } | |
324 | } | |
325 | if (BLOCK_FUNCTION (block)) | |
326 | break; | |
327 | else | |
328 | block = BLOCK_SUPERBLOCK (block); | |
329 | } | |
6ad4a2cf | 330 | do_cleanups (cleanup_list); |
fb40c209 AC |
331 | ui_out_stream_delete (stb); |
332 | } | |
333 | ||
334 | enum mi_cmd_result | |
335 | mi_cmd_stack_select_frame (char *command, char **argv, int argc) | |
336 | { | |
fb40c209 AC |
337 | if (!target_has_stack) |
338 | error ("mi_cmd_stack_select_frame: No stack."); | |
339 | ||
340 | if (argc > 1) | |
341 | error ("mi_cmd_stack_select_frame: Usage: [FRAME_SPEC]"); | |
342 | ||
343 | /* with no args, don't change frame */ | |
344 | if (argc == 0) | |
b9362cc7 | 345 | select_frame_command (0, 1 /* not used */ ); |
fb40c209 | 346 | else |
b9362cc7 | 347 | select_frame_command (argv[0], 1 /* not used */ ); |
fb40c209 AC |
348 | return MI_CMD_DONE; |
349 | } |