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; | |
0faf0076 | 88 | /* Print the location and the address always, even for level 0. |
fb40c209 | 89 | args == 0: don't print the arguments. */ |
0faf0076 | 90 | print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */ ); |
fb40c209 AC |
91 | } |
92 | ||
6ad4a2cf | 93 | do_cleanups (cleanup_stack); |
fb40c209 AC |
94 | if (i < frame_high) |
95 | error ("mi_cmd_stack_list_frames: Not enough frames in stack."); | |
96 | ||
97 | return MI_CMD_DONE; | |
98 | } | |
99 | ||
100 | enum mi_cmd_result | |
101 | mi_cmd_stack_info_depth (char *command, char **argv, int argc) | |
102 | { | |
103 | int frame_high; | |
104 | int i; | |
105 | struct frame_info *fi; | |
106 | ||
107 | if (!target_has_stack) | |
108 | error ("mi_cmd_stack_info_depth: No stack."); | |
109 | ||
110 | if (argc > 1) | |
111 | error ("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]"); | |
112 | ||
113 | if (argc == 1) | |
114 | frame_high = atoi (argv[0]); | |
115 | else | |
116 | /* Called with no arguments, it means we want the real depth of | |
117 | the stack. */ | |
118 | frame_high = -1; | |
119 | ||
120 | for (i = 0, fi = get_current_frame (); | |
121 | fi && (i < frame_high || frame_high == -1); | |
122 | i++, fi = get_prev_frame (fi)) | |
123 | QUIT; | |
124 | ||
125 | ui_out_field_int (uiout, "depth", i); | |
126 | ||
127 | return MI_CMD_DONE; | |
128 | } | |
129 | ||
130 | /* Print a list of the locals for the current frame. With argument of | |
131 | 0, print only the names, with argument of 1 print also the | |
132 | values. */ | |
133 | enum mi_cmd_result | |
134 | mi_cmd_stack_list_locals (char *command, char **argv, int argc) | |
135 | { | |
f5ec2042 NR |
136 | struct frame_info *frame; |
137 | enum print_values print_values; | |
138 | ||
fb40c209 AC |
139 | if (argc != 1) |
140 | error ("mi_cmd_stack_list_locals: Usage: PRINT_VALUES"); | |
141 | ||
b04f3ab4 | 142 | frame = get_selected_frame (NULL); |
f5ec2042 NR |
143 | |
144 | if (strcmp (argv[0], "0") == 0 | |
145 | || strcmp (argv[0], "--no-values") == 0) | |
146 | print_values = PRINT_NO_VALUES; | |
147 | else if (strcmp (argv[0], "1") == 0 | |
148 | || strcmp (argv[0], "--all-values") == 0) | |
149 | print_values = PRINT_ALL_VALUES; | |
150 | else if (strcmp (argv[0], "2") == 0 | |
151 | || strcmp (argv[0], "--simple-values") == 0) | |
152 | print_values = PRINT_SIMPLE_VALUES; | |
153 | else | |
154 | error ("Unknown value for PRINT_VALUES: must be: 0 or \"--no-values\", 1 or \"--all-values\", 2 or \"--simple-values\""); | |
155 | list_args_or_locals (1, print_values, frame); | |
fb40c209 AC |
156 | return MI_CMD_DONE; |
157 | } | |
158 | ||
159 | /* Print a list of the arguments for the current frame. With argument | |
160 | of 0, print only the names, with argument of 1 print also the | |
161 | values. */ | |
162 | enum mi_cmd_result | |
163 | mi_cmd_stack_list_args (char *command, char **argv, int argc) | |
164 | { | |
165 | int frame_low; | |
166 | int frame_high; | |
167 | int i; | |
168 | struct frame_info *fi; | |
6ad4a2cf | 169 | struct cleanup *cleanup_stack_args; |
fb40c209 AC |
170 | |
171 | if (argc < 1 || argc > 3 || argc == 2) | |
172 | error ("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]"); | |
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 | ||
187 | /* Let's position fi on the frame at which to start the | |
188 | display. Could be the innermost frame if the whole stack needs | |
189 | displaying, or if frame_low is 0. */ | |
190 | for (i = 0, fi = get_current_frame (); | |
191 | fi && i < frame_low; | |
192 | i++, fi = get_prev_frame (fi)); | |
193 | ||
194 | if (fi == NULL) | |
195 | error ("mi_cmd_stack_list_args: Not enough frames in stack."); | |
196 | ||
6ad4a2cf | 197 | cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args"); |
fb40c209 AC |
198 | |
199 | /* Now let's print the frames up to frame_high, or until there are | |
200 | frames in the stack. */ | |
201 | for (; | |
202 | fi && (i <= frame_high || frame_high == -1); | |
203 | i++, fi = get_prev_frame (fi)) | |
204 | { | |
6ad4a2cf | 205 | struct cleanup *cleanup_frame; |
fb40c209 | 206 | QUIT; |
6ad4a2cf | 207 | cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
fb40c209 AC |
208 | ui_out_field_int (uiout, "level", i); |
209 | list_args_or_locals (0, atoi (argv[0]), fi); | |
6ad4a2cf | 210 | do_cleanups (cleanup_frame); |
fb40c209 AC |
211 | } |
212 | ||
6ad4a2cf | 213 | do_cleanups (cleanup_stack_args); |
fb40c209 AC |
214 | if (i < frame_high) |
215 | error ("mi_cmd_stack_list_args: Not enough frames in stack."); | |
216 | ||
217 | return MI_CMD_DONE; | |
218 | } | |
219 | ||
220 | /* Print a list of the locals or the arguments for the currently | |
221 | selected frame. If the argument passed is 0, printonly the names | |
222 | of the variables, if an argument of 1 is passed, print the values | |
223 | as well. */ | |
224 | static void | |
225 | list_args_or_locals (int locals, int values, struct frame_info *fi) | |
226 | { | |
227 | struct block *block; | |
228 | struct symbol *sym; | |
de4f826b DC |
229 | struct dict_iterator iter; |
230 | int nsyms; | |
6ad4a2cf | 231 | struct cleanup *cleanup_list; |
fb40c209 | 232 | static struct ui_stream *stb = NULL; |
f5ec2042 | 233 | struct type *type; |
fb40c209 AC |
234 | |
235 | stb = ui_out_stream_new (uiout); | |
236 | ||
ae767bfb | 237 | block = get_frame_block (fi, 0); |
fb40c209 | 238 | |
6ad4a2cf | 239 | cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args"); |
fb40c209 AC |
240 | |
241 | while (block != 0) | |
242 | { | |
de4f826b | 243 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
fb40c209 | 244 | { |
39bf4652 JB |
245 | int print_me = 0; |
246 | ||
fb40c209 AC |
247 | switch (SYMBOL_CLASS (sym)) |
248 | { | |
249 | default: | |
250 | case LOC_UNDEF: /* catches errors */ | |
251 | case LOC_CONST: /* constant */ | |
252 | case LOC_TYPEDEF: /* local typedef */ | |
253 | case LOC_LABEL: /* local label */ | |
254 | case LOC_BLOCK: /* local function */ | |
255 | case LOC_CONST_BYTES: /* loc. byte seq. */ | |
256 | case LOC_UNRESOLVED: /* unresolved static */ | |
257 | case LOC_OPTIMIZED_OUT: /* optimized out */ | |
258 | print_me = 0; | |
259 | break; | |
260 | ||
261 | case LOC_ARG: /* argument */ | |
262 | case LOC_REF_ARG: /* reference arg */ | |
263 | case LOC_REGPARM: /* register arg */ | |
264 | case LOC_REGPARM_ADDR: /* indirect register arg */ | |
265 | case LOC_LOCAL_ARG: /* stack arg */ | |
266 | case LOC_BASEREG_ARG: /* basereg arg */ | |
4cf623b6 | 267 | case LOC_COMPUTED_ARG: /* arg with computed location */ |
fb40c209 AC |
268 | if (!locals) |
269 | print_me = 1; | |
270 | break; | |
271 | ||
272 | case LOC_LOCAL: /* stack local */ | |
273 | case LOC_BASEREG: /* basereg local */ | |
274 | case LOC_STATIC: /* static */ | |
275 | case LOC_REGISTER: /* register */ | |
4cf623b6 | 276 | case LOC_COMPUTED: /* computed location */ |
fb40c209 AC |
277 | if (locals) |
278 | print_me = 1; | |
279 | break; | |
280 | } | |
281 | if (print_me) | |
282 | { | |
6ad4a2cf | 283 | struct cleanup *cleanup_tuple = NULL; |
6bb0384f | 284 | struct symbol *sym2; |
f5ec2042 NR |
285 | if (values != PRINT_NO_VALUES) |
286 | cleanup_tuple = | |
6ad4a2cf | 287 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
f5ec2042 | 288 | ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym)); |
fb40c209 | 289 | |
f5ec2042 NR |
290 | if (!locals) |
291 | sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym), | |
292 | block, VAR_DOMAIN, | |
293 | (int *) NULL, | |
294 | (struct symtab **) NULL); | |
295 | else | |
fb40c209 | 296 | sym2 = sym; |
f5ec2042 NR |
297 | switch (values) |
298 | { | |
299 | case PRINT_SIMPLE_VALUES: | |
300 | type = check_typedef (sym2->type); | |
301 | type_print (sym2->type, "", stb->stream, -1); | |
302 | ui_out_field_stream (uiout, "type", stb); | |
303 | if (TYPE_CODE (type) != TYPE_CODE_ARRAY | |
304 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
305 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
306 | { | |
307 | print_variable_value (sym2, fi, stb->stream); | |
308 | ui_out_field_stream (uiout, "value", stb); | |
309 | } | |
310 | do_cleanups (cleanup_tuple); | |
311 | break; | |
312 | case PRINT_ALL_VALUES: | |
fb40c209 AC |
313 | print_variable_value (sym2, fi, stb->stream); |
314 | ui_out_field_stream (uiout, "value", stb); | |
6ad4a2cf | 315 | do_cleanups (cleanup_tuple); |
f5ec2042 | 316 | break; |
fb40c209 AC |
317 | } |
318 | } | |
319 | } | |
320 | if (BLOCK_FUNCTION (block)) | |
321 | break; | |
322 | else | |
323 | block = BLOCK_SUPERBLOCK (block); | |
324 | } | |
6ad4a2cf | 325 | do_cleanups (cleanup_list); |
fb40c209 AC |
326 | ui_out_stream_delete (stb); |
327 | } | |
328 | ||
329 | enum mi_cmd_result | |
330 | mi_cmd_stack_select_frame (char *command, char **argv, int argc) | |
331 | { | |
fb40c209 AC |
332 | if (!target_has_stack) |
333 | error ("mi_cmd_stack_select_frame: No stack."); | |
334 | ||
335 | if (argc > 1) | |
336 | error ("mi_cmd_stack_select_frame: Usage: [FRAME_SPEC]"); | |
337 | ||
338 | /* with no args, don't change frame */ | |
339 | if (argc == 0) | |
b9362cc7 | 340 | select_frame_command (0, 1 /* not used */ ); |
fb40c209 | 341 | else |
b9362cc7 | 342 | select_frame_command (argv[0], 1 /* not used */ ); |
fb40c209 AC |
343 | return MI_CMD_DONE; |
344 | } |