Commit | Line | Data |
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fb40c209 | 1 | /* MI Command Set - stack commands. |
1ecb4ee0 | 2 | Copyright 2000, 2002, 2003, 2004, 2005 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 | ||
fb40c209 | 50 | if (argc > 2 || argc == 1) |
8a3fe4f8 | 51 | error (_("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]")); |
fb40c209 AC |
52 | |
53 | if (argc == 2) | |
54 | { | |
55 | frame_low = atoi (argv[0]); | |
56 | frame_high = atoi (argv[1]); | |
57 | } | |
58 | else | |
59 | { | |
60 | /* Called with no arguments, it means we want the whole | |
61 | backtrace. */ | |
62 | frame_low = -1; | |
63 | frame_high = -1; | |
64 | } | |
65 | ||
66 | /* Let's position fi on the frame at which to start the | |
67 | display. Could be the innermost frame if the whole stack needs | |
68 | displaying, or if frame_low is 0. */ | |
69 | for (i = 0, fi = get_current_frame (); | |
70 | fi && i < frame_low; | |
71 | i++, fi = get_prev_frame (fi)); | |
72 | ||
73 | if (fi == NULL) | |
8a3fe4f8 | 74 | error (_("mi_cmd_stack_list_frames: Not enough frames in stack.")); |
fb40c209 | 75 | |
6ad4a2cf | 76 | cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack"); |
fb40c209 AC |
77 | |
78 | /* Now let;s print the frames up to frame_high, or until there are | |
79 | frames in the stack. */ | |
80 | for (; | |
81 | fi && (i <= frame_high || frame_high == -1); | |
82 | i++, fi = get_prev_frame (fi)) | |
83 | { | |
84 | QUIT; | |
0faf0076 | 85 | /* Print the location and the address always, even for level 0. |
fb40c209 | 86 | args == 0: don't print the arguments. */ |
0faf0076 | 87 | print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */ ); |
fb40c209 AC |
88 | } |
89 | ||
6ad4a2cf | 90 | do_cleanups (cleanup_stack); |
fb40c209 | 91 | if (i < frame_high) |
8a3fe4f8 | 92 | error (_("mi_cmd_stack_list_frames: Not enough frames in stack.")); |
fb40c209 AC |
93 | |
94 | return MI_CMD_DONE; | |
95 | } | |
96 | ||
97 | enum mi_cmd_result | |
98 | mi_cmd_stack_info_depth (char *command, char **argv, int argc) | |
99 | { | |
100 | int frame_high; | |
101 | int i; | |
102 | struct frame_info *fi; | |
103 | ||
fb40c209 | 104 | if (argc > 1) |
8a3fe4f8 | 105 | error (_("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]")); |
fb40c209 AC |
106 | |
107 | if (argc == 1) | |
108 | frame_high = atoi (argv[0]); | |
109 | else | |
110 | /* Called with no arguments, it means we want the real depth of | |
111 | the stack. */ | |
112 | frame_high = -1; | |
113 | ||
114 | for (i = 0, fi = get_current_frame (); | |
115 | fi && (i < frame_high || frame_high == -1); | |
116 | i++, fi = get_prev_frame (fi)) | |
117 | QUIT; | |
118 | ||
119 | ui_out_field_int (uiout, "depth", i); | |
120 | ||
121 | return MI_CMD_DONE; | |
122 | } | |
123 | ||
124 | /* Print a list of the locals for the current frame. With argument of | |
125 | 0, print only the names, with argument of 1 print also the | |
126 | values. */ | |
127 | enum mi_cmd_result | |
128 | mi_cmd_stack_list_locals (char *command, char **argv, int argc) | |
129 | { | |
f5ec2042 NR |
130 | struct frame_info *frame; |
131 | enum print_values print_values; | |
132 | ||
fb40c209 | 133 | if (argc != 1) |
8a3fe4f8 | 134 | error (_("mi_cmd_stack_list_locals: Usage: PRINT_VALUES")); |
fb40c209 | 135 | |
b04f3ab4 | 136 | frame = get_selected_frame (NULL); |
f5ec2042 NR |
137 | |
138 | if (strcmp (argv[0], "0") == 0 | |
1ecb4ee0 | 139 | || strcmp (argv[0], mi_no_values) == 0) |
f5ec2042 NR |
140 | print_values = PRINT_NO_VALUES; |
141 | else if (strcmp (argv[0], "1") == 0 | |
1ecb4ee0 | 142 | || strcmp (argv[0], mi_all_values) == 0) |
f5ec2042 NR |
143 | print_values = PRINT_ALL_VALUES; |
144 | else if (strcmp (argv[0], "2") == 0 | |
1ecb4ee0 | 145 | || strcmp (argv[0], mi_simple_values) == 0) |
f5ec2042 NR |
146 | print_values = PRINT_SIMPLE_VALUES; |
147 | else | |
1ecb4ee0 DJ |
148 | error (_("Unknown value for PRINT_VALUES: must be: \ |
149 | 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""), | |
150 | mi_no_values, mi_all_values, mi_simple_values); | |
f5ec2042 | 151 | list_args_or_locals (1, print_values, frame); |
fb40c209 AC |
152 | return MI_CMD_DONE; |
153 | } | |
154 | ||
155 | /* Print a list of the arguments for the current frame. With argument | |
156 | of 0, print only the names, with argument of 1 print also the | |
157 | values. */ | |
158 | enum mi_cmd_result | |
159 | mi_cmd_stack_list_args (char *command, char **argv, int argc) | |
160 | { | |
161 | int frame_low; | |
162 | int frame_high; | |
163 | int i; | |
164 | struct frame_info *fi; | |
6ad4a2cf | 165 | struct cleanup *cleanup_stack_args; |
fb40c209 AC |
166 | |
167 | if (argc < 1 || argc > 3 || argc == 2) | |
8a3fe4f8 | 168 | error (_("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]")); |
fb40c209 AC |
169 | |
170 | if (argc == 3) | |
171 | { | |
172 | frame_low = atoi (argv[1]); | |
173 | frame_high = atoi (argv[2]); | |
174 | } | |
175 | else | |
176 | { | |
177 | /* Called with no arguments, it means we want args for the whole | |
178 | backtrace. */ | |
179 | frame_low = -1; | |
180 | frame_high = -1; | |
181 | } | |
182 | ||
183 | /* Let's position fi on the frame at which to start the | |
184 | display. Could be the innermost frame if the whole stack needs | |
185 | displaying, or if frame_low is 0. */ | |
186 | for (i = 0, fi = get_current_frame (); | |
187 | fi && i < frame_low; | |
188 | i++, fi = get_prev_frame (fi)); | |
189 | ||
190 | if (fi == NULL) | |
8a3fe4f8 | 191 | error (_("mi_cmd_stack_list_args: Not enough frames in stack.")); |
fb40c209 | 192 | |
6ad4a2cf | 193 | cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args"); |
fb40c209 AC |
194 | |
195 | /* Now let's print the frames up to frame_high, or until there are | |
196 | frames in the stack. */ | |
197 | for (; | |
198 | fi && (i <= frame_high || frame_high == -1); | |
199 | i++, fi = get_prev_frame (fi)) | |
200 | { | |
6ad4a2cf | 201 | struct cleanup *cleanup_frame; |
fb40c209 | 202 | QUIT; |
6ad4a2cf | 203 | cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
fb40c209 AC |
204 | ui_out_field_int (uiout, "level", i); |
205 | list_args_or_locals (0, atoi (argv[0]), fi); | |
6ad4a2cf | 206 | do_cleanups (cleanup_frame); |
fb40c209 AC |
207 | } |
208 | ||
6ad4a2cf | 209 | do_cleanups (cleanup_stack_args); |
fb40c209 | 210 | if (i < frame_high) |
8a3fe4f8 | 211 | error (_("mi_cmd_stack_list_args: Not enough frames in stack.")); |
fb40c209 AC |
212 | |
213 | return MI_CMD_DONE; | |
214 | } | |
215 | ||
216 | /* Print a list of the locals or the arguments for the currently | |
217 | selected frame. If the argument passed is 0, printonly the names | |
218 | of the variables, if an argument of 1 is passed, print the values | |
219 | as well. */ | |
220 | static void | |
221 | list_args_or_locals (int locals, int values, struct frame_info *fi) | |
222 | { | |
223 | struct block *block; | |
224 | struct symbol *sym; | |
de4f826b DC |
225 | struct dict_iterator iter; |
226 | int nsyms; | |
6ad4a2cf | 227 | struct cleanup *cleanup_list; |
fb40c209 | 228 | static struct ui_stream *stb = NULL; |
f5ec2042 | 229 | struct type *type; |
fb40c209 AC |
230 | |
231 | stb = ui_out_stream_new (uiout); | |
232 | ||
ae767bfb | 233 | block = get_frame_block (fi, 0); |
fb40c209 | 234 | |
6ad4a2cf | 235 | cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args"); |
fb40c209 AC |
236 | |
237 | while (block != 0) | |
238 | { | |
de4f826b | 239 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
fb40c209 | 240 | { |
39bf4652 JB |
241 | int print_me = 0; |
242 | ||
fb40c209 AC |
243 | switch (SYMBOL_CLASS (sym)) |
244 | { | |
245 | default: | |
246 | case LOC_UNDEF: /* catches errors */ | |
247 | case LOC_CONST: /* constant */ | |
248 | case LOC_TYPEDEF: /* local typedef */ | |
249 | case LOC_LABEL: /* local label */ | |
250 | case LOC_BLOCK: /* local function */ | |
251 | case LOC_CONST_BYTES: /* loc. byte seq. */ | |
252 | case LOC_UNRESOLVED: /* unresolved static */ | |
253 | case LOC_OPTIMIZED_OUT: /* optimized out */ | |
254 | print_me = 0; | |
255 | break; | |
256 | ||
257 | case LOC_ARG: /* argument */ | |
258 | case LOC_REF_ARG: /* reference arg */ | |
259 | case LOC_REGPARM: /* register arg */ | |
260 | case LOC_REGPARM_ADDR: /* indirect register arg */ | |
261 | case LOC_LOCAL_ARG: /* stack arg */ | |
262 | case LOC_BASEREG_ARG: /* basereg arg */ | |
4cf623b6 | 263 | case LOC_COMPUTED_ARG: /* arg with computed location */ |
fb40c209 AC |
264 | if (!locals) |
265 | print_me = 1; | |
266 | break; | |
267 | ||
268 | case LOC_LOCAL: /* stack local */ | |
269 | case LOC_BASEREG: /* basereg local */ | |
270 | case LOC_STATIC: /* static */ | |
271 | case LOC_REGISTER: /* register */ | |
4cf623b6 | 272 | case LOC_COMPUTED: /* computed location */ |
fb40c209 AC |
273 | if (locals) |
274 | print_me = 1; | |
275 | break; | |
276 | } | |
277 | if (print_me) | |
278 | { | |
6ad4a2cf | 279 | struct cleanup *cleanup_tuple = NULL; |
6bb0384f | 280 | struct symbol *sym2; |
f5ec2042 NR |
281 | if (values != PRINT_NO_VALUES) |
282 | cleanup_tuple = | |
6ad4a2cf | 283 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
f5ec2042 | 284 | ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym)); |
fb40c209 | 285 | |
f5ec2042 NR |
286 | if (!locals) |
287 | sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym), | |
288 | block, VAR_DOMAIN, | |
289 | (int *) NULL, | |
290 | (struct symtab **) NULL); | |
291 | else | |
fb40c209 | 292 | sym2 = sym; |
f5ec2042 NR |
293 | switch (values) |
294 | { | |
295 | case PRINT_SIMPLE_VALUES: | |
296 | type = check_typedef (sym2->type); | |
297 | type_print (sym2->type, "", stb->stream, -1); | |
298 | ui_out_field_stream (uiout, "type", stb); | |
299 | if (TYPE_CODE (type) != TYPE_CODE_ARRAY | |
300 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
301 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
302 | { | |
303 | print_variable_value (sym2, fi, stb->stream); | |
304 | ui_out_field_stream (uiout, "value", stb); | |
305 | } | |
306 | do_cleanups (cleanup_tuple); | |
307 | break; | |
308 | case PRINT_ALL_VALUES: | |
fb40c209 AC |
309 | print_variable_value (sym2, fi, stb->stream); |
310 | ui_out_field_stream (uiout, "value", stb); | |
6ad4a2cf | 311 | do_cleanups (cleanup_tuple); |
f5ec2042 | 312 | break; |
fb40c209 AC |
313 | } |
314 | } | |
315 | } | |
316 | if (BLOCK_FUNCTION (block)) | |
317 | break; | |
318 | else | |
319 | block = BLOCK_SUPERBLOCK (block); | |
320 | } | |
6ad4a2cf | 321 | do_cleanups (cleanup_list); |
fb40c209 AC |
322 | ui_out_stream_delete (stb); |
323 | } | |
324 | ||
325 | enum mi_cmd_result | |
326 | mi_cmd_stack_select_frame (char *command, char **argv, int argc) | |
327 | { | |
fcf43932 NR |
328 | if (argc == 0 || argc > 1) |
329 | error (_("mi_cmd_stack_select_frame: Usage: FRAME_SPEC")); | |
fb40c209 | 330 | |
fcf43932 | 331 | select_frame_command (argv[0], 1 /* not used */ ); |
fb40c209 AC |
332 | return MI_CMD_DONE; |
333 | } | |
64fd8944 NR |
334 | |
335 | enum mi_cmd_result | |
336 | mi_cmd_stack_info_frame (char *command, char **argv, int argc) | |
337 | { | |
338 | if (argc > 0) | |
339 | error (_("mi_cmd_stack_info_frame: No arguments required")); | |
340 | ||
341 | print_frame_info (get_selected_frame (NULL), 1, LOC_AND_ADDRESS, 0); | |
342 | return MI_CMD_DONE; | |
343 | } |