Commit | Line | Data |
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d318976c | 1 | /* Handle set and show GDB commands. |
8926118c | 2 | |
4c38e0a4 | 3 | Copyright (c) 2000, 2001, 2002, 2003, 2007, 2008, 2009, 2010 |
9b254dd1 | 4 | Free Software Foundation, Inc. |
d318976c FN |
5 | |
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
d318976c FN |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
d318976c FN |
18 | |
19 | #include "defs.h" | |
dbda9972 | 20 | #include "readline/tilde.h" |
d318976c FN |
21 | #include "value.h" |
22 | #include <ctype.h> | |
d318976c | 23 | #include "gdb_string.h" |
f870a310 | 24 | #include "arch-utils.h" |
d318976c | 25 | |
d318976c | 26 | #include "ui-out.h" |
d318976c FN |
27 | |
28 | #include "cli/cli-decode.h" | |
29 | #include "cli/cli-cmds.h" | |
30 | #include "cli/cli-setshow.h" | |
31 | ||
32 | /* Prototypes for local functions */ | |
33 | ||
34 | static int parse_binary_operation (char *); | |
35 | ||
d318976c | 36 | \f |
7f19b9a2 | 37 | static enum auto_boolean |
d318976c FN |
38 | parse_auto_binary_operation (const char *arg) |
39 | { | |
40 | if (arg != NULL && *arg != '\0') | |
41 | { | |
42 | int length = strlen (arg); | |
cdb27c12 | 43 | |
d318976c FN |
44 | while (isspace (arg[length - 1]) && length > 0) |
45 | length--; | |
46 | if (strncmp (arg, "on", length) == 0 | |
47 | || strncmp (arg, "1", length) == 0 | |
48 | || strncmp (arg, "yes", length) == 0 | |
49 | || strncmp (arg, "enable", length) == 0) | |
7f19b9a2 | 50 | return AUTO_BOOLEAN_TRUE; |
d318976c FN |
51 | else if (strncmp (arg, "off", length) == 0 |
52 | || strncmp (arg, "0", length) == 0 | |
53 | || strncmp (arg, "no", length) == 0 | |
54 | || strncmp (arg, "disable", length) == 0) | |
7f19b9a2 | 55 | return AUTO_BOOLEAN_FALSE; |
d318976c FN |
56 | else if (strncmp (arg, "auto", length) == 0 |
57 | || (strncmp (arg, "-1", length) == 0 && length > 1)) | |
7f19b9a2 | 58 | return AUTO_BOOLEAN_AUTO; |
d318976c | 59 | } |
8a3fe4f8 | 60 | error (_("\"on\", \"off\" or \"auto\" expected.")); |
7f19b9a2 | 61 | return AUTO_BOOLEAN_AUTO; /* pacify GCC */ |
d318976c FN |
62 | } |
63 | ||
64 | static int | |
65 | parse_binary_operation (char *arg) | |
66 | { | |
67 | int length; | |
68 | ||
69 | if (!arg || !*arg) | |
70 | return 1; | |
71 | ||
72 | length = strlen (arg); | |
73 | ||
74 | while (arg[length - 1] == ' ' || arg[length - 1] == '\t') | |
75 | length--; | |
76 | ||
77 | if (strncmp (arg, "on", length) == 0 | |
78 | || strncmp (arg, "1", length) == 0 | |
79 | || strncmp (arg, "yes", length) == 0 | |
80 | || strncmp (arg, "enable", length) == 0) | |
81 | return 1; | |
82 | else if (strncmp (arg, "off", length) == 0 | |
83 | || strncmp (arg, "0", length) == 0 | |
84 | || strncmp (arg, "no", length) == 0 | |
85 | || strncmp (arg, "disable", length) == 0) | |
86 | return 0; | |
87 | else | |
88 | { | |
8a3fe4f8 | 89 | error (_("\"on\" or \"off\" expected.")); |
d318976c FN |
90 | return 0; |
91 | } | |
92 | } | |
93 | \f | |
08546159 AC |
94 | void |
95 | deprecated_show_value_hack (struct ui_file *ignore_file, | |
96 | int ignore_from_tty, | |
97 | struct cmd_list_element *c, | |
98 | const char *value) | |
99 | { | |
4d28ad1e AC |
100 | /* If there's no command or value, don't try to print it out. */ |
101 | if (c == NULL || value == NULL) | |
102 | return; | |
08546159 AC |
103 | /* Print doc minus "show" at start. */ |
104 | print_doc_line (gdb_stdout, c->doc + 5); | |
105 | switch (c->var_type) | |
106 | { | |
107 | case var_string: | |
108 | case var_string_noescape: | |
b4b4ac0b | 109 | case var_optional_filename: |
08546159 AC |
110 | case var_filename: |
111 | case var_enum: | |
112 | printf_filtered ((" is \"%s\".\n"), value); | |
113 | break; | |
114 | default: | |
115 | printf_filtered ((" is %s.\n"), value); | |
116 | break; | |
117 | } | |
118 | } | |
119 | ||
d318976c FN |
120 | /* Do a "set" or "show" command. ARG is NULL if no argument, or the text |
121 | of the argument, and FROM_TTY is nonzero if this command is being entered | |
122 | directly by the user (i.e. these are just like any other | |
123 | command). C is the command list element for the command. */ | |
124 | ||
125 | void | |
126 | do_setshow_command (char *arg, int from_tty, struct cmd_list_element *c) | |
127 | { | |
128 | if (c->type == set_cmd) | |
129 | { | |
130 | switch (c->var_type) | |
131 | { | |
132 | case var_string: | |
133 | { | |
134 | char *new; | |
135 | char *p; | |
136 | char *q; | |
137 | int ch; | |
138 | ||
139 | if (arg == NULL) | |
140 | arg = ""; | |
141 | new = (char *) xmalloc (strlen (arg) + 2); | |
142 | p = arg; | |
143 | q = new; | |
144 | while ((ch = *p++) != '\000') | |
145 | { | |
146 | if (ch == '\\') | |
147 | { | |
148 | /* \ at end of argument is used after spaces | |
149 | so they won't be lost. */ | |
150 | /* This is obsolete now that we no longer strip | |
151 | trailing whitespace and actually, the backslash | |
152 | didn't get here in my test, readline or | |
153 | something did something funky with a backslash | |
154 | right before a newline. */ | |
155 | if (*p == 0) | |
156 | break; | |
f870a310 | 157 | ch = parse_escape (get_current_arch (), &p); |
d318976c FN |
158 | if (ch == 0) |
159 | break; /* C loses */ | |
160 | else if (ch > 0) | |
161 | *q++ = ch; | |
162 | } | |
163 | else | |
164 | *q++ = ch; | |
165 | } | |
166 | #if 0 | |
167 | if (*(p - 1) != '\\') | |
168 | *q++ = ' '; | |
169 | #endif | |
170 | *q++ = '\0'; | |
171 | new = (char *) xrealloc (new, q - new); | |
172 | if (*(char **) c->var != NULL) | |
b8c9b27d | 173 | xfree (*(char **) c->var); |
d318976c FN |
174 | *(char **) c->var = new; |
175 | } | |
176 | break; | |
177 | case var_string_noescape: | |
178 | if (arg == NULL) | |
179 | arg = ""; | |
180 | if (*(char **) c->var != NULL) | |
b8c9b27d | 181 | xfree (*(char **) c->var); |
1b36a34b | 182 | *(char **) c->var = xstrdup (arg); |
d318976c | 183 | break; |
b4b4ac0b | 184 | case var_optional_filename: |
d318976c | 185 | if (arg == NULL) |
525226b5 AC |
186 | arg = ""; |
187 | if (*(char **) c->var != NULL) | |
188 | xfree (*(char **) c->var); | |
1b36a34b | 189 | *(char **) c->var = xstrdup (arg); |
525226b5 AC |
190 | break; |
191 | case var_filename: | |
192 | if (arg == NULL) | |
193 | error_no_arg (_("filename to set it to.")); | |
d318976c | 194 | if (*(char **) c->var != NULL) |
b8c9b27d | 195 | xfree (*(char **) c->var); |
1430be3e MR |
196 | { |
197 | /* Clear trailing whitespace of filename. */ | |
198 | char *ptr = arg + strlen (arg) - 1; | |
cdb27c12 | 199 | |
1430be3e MR |
200 | while (ptr >= arg && (*ptr == ' ' || *ptr == '\t')) |
201 | ptr--; | |
202 | *(ptr + 1) = '\0'; | |
203 | } | |
d318976c FN |
204 | *(char **) c->var = tilde_expand (arg); |
205 | break; | |
206 | case var_boolean: | |
207 | *(int *) c->var = parse_binary_operation (arg); | |
208 | break; | |
209 | case var_auto_boolean: | |
7f19b9a2 | 210 | *(enum auto_boolean *) c->var = parse_auto_binary_operation (arg); |
d318976c FN |
211 | break; |
212 | case var_uinteger: | |
213 | if (arg == NULL) | |
e2e0b3e5 | 214 | error_no_arg (_("integer to set it to.")); |
d318976c FN |
215 | *(unsigned int *) c->var = parse_and_eval_long (arg); |
216 | if (*(unsigned int *) c->var == 0) | |
217 | *(unsigned int *) c->var = UINT_MAX; | |
218 | break; | |
219 | case var_integer: | |
220 | { | |
221 | unsigned int val; | |
cdb27c12 | 222 | |
d318976c | 223 | if (arg == NULL) |
e2e0b3e5 | 224 | error_no_arg (_("integer to set it to.")); |
d318976c FN |
225 | val = parse_and_eval_long (arg); |
226 | if (val == 0) | |
227 | *(int *) c->var = INT_MAX; | |
228 | else if (val >= INT_MAX) | |
8a3fe4f8 | 229 | error (_("integer %u out of range"), val); |
d318976c FN |
230 | else |
231 | *(int *) c->var = val; | |
232 | break; | |
233 | } | |
234 | case var_zinteger: | |
235 | if (arg == NULL) | |
e2e0b3e5 | 236 | error_no_arg (_("integer to set it to.")); |
d318976c FN |
237 | *(int *) c->var = parse_and_eval_long (arg); |
238 | break; | |
1e8fb976 PA |
239 | case var_zuinteger: |
240 | if (arg == NULL) | |
241 | error_no_arg (_("integer to set it to.")); | |
242 | *(unsigned int *) c->var = parse_and_eval_long (arg); | |
243 | break; | |
d318976c FN |
244 | case var_enum: |
245 | { | |
246 | int i; | |
247 | int len; | |
248 | int nmatches; | |
249 | const char *match = NULL; | |
250 | char *p; | |
251 | ||
252 | /* if no argument was supplied, print an informative error message */ | |
253 | if (arg == NULL) | |
254 | { | |
f0704234 UW |
255 | char *msg; |
256 | int msg_len = 0; | |
cdb27c12 | 257 | |
f0704234 UW |
258 | for (i = 0; c->enums[i]; i++) |
259 | msg_len += strlen (c->enums[i]) + 2; | |
260 | ||
261 | msg = xmalloc (msg_len); | |
262 | *msg = '\0'; | |
263 | make_cleanup (xfree, msg); | |
264 | ||
d318976c FN |
265 | for (i = 0; c->enums[i]; i++) |
266 | { | |
267 | if (i != 0) | |
268 | strcat (msg, ", "); | |
269 | strcat (msg, c->enums[i]); | |
270 | } | |
f0704234 | 271 | error (_("Requires an argument. Valid arguments are %s."), msg); |
d318976c FN |
272 | } |
273 | ||
274 | p = strchr (arg, ' '); | |
275 | ||
276 | if (p) | |
277 | len = p - arg; | |
278 | else | |
279 | len = strlen (arg); | |
280 | ||
281 | nmatches = 0; | |
282 | for (i = 0; c->enums[i]; i++) | |
283 | if (strncmp (arg, c->enums[i], len) == 0) | |
284 | { | |
285 | if (c->enums[i][len] == '\0') | |
286 | { | |
287 | match = c->enums[i]; | |
288 | nmatches = 1; | |
289 | break; /* exact match. */ | |
290 | } | |
291 | else | |
292 | { | |
293 | match = c->enums[i]; | |
294 | nmatches++; | |
295 | } | |
296 | } | |
297 | ||
298 | if (nmatches <= 0) | |
8a3fe4f8 | 299 | error (_("Undefined item: \"%s\"."), arg); |
d318976c FN |
300 | |
301 | if (nmatches > 1) | |
8a3fe4f8 | 302 | error (_("Ambiguous item \"%s\"."), arg); |
d318976c FN |
303 | |
304 | *(const char **) c->var = match; | |
305 | } | |
306 | break; | |
307 | default: | |
8a3fe4f8 | 308 | error (_("gdb internal error: bad var_type in do_setshow_command")); |
d318976c FN |
309 | } |
310 | } | |
311 | else if (c->type == show_cmd) | |
312 | { | |
d318976c FN |
313 | struct cleanup *old_chain; |
314 | struct ui_stream *stb; | |
d318976c FN |
315 | |
316 | stb = ui_out_stream_new (uiout); | |
317 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
d318976c | 318 | |
552c04a7 TT |
319 | /* Possibly call the pre hook. */ |
320 | if (c->pre_show_hook) | |
321 | (c->pre_show_hook) (c); | |
322 | ||
d318976c FN |
323 | switch (c->var_type) |
324 | { | |
325 | case var_string: | |
3b113db7 DJ |
326 | if (*(char **) c->var) |
327 | fputstr_filtered (*(char **) c->var, '"', stb->stream); | |
d318976c FN |
328 | break; |
329 | case var_string_noescape: | |
b4b4ac0b | 330 | case var_optional_filename: |
d318976c FN |
331 | case var_filename: |
332 | case var_enum: | |
333 | if (*(char **) c->var) | |
334 | fputs_filtered (*(char **) c->var, stb->stream); | |
d318976c FN |
335 | break; |
336 | case var_boolean: | |
337 | fputs_filtered (*(int *) c->var ? "on" : "off", stb->stream); | |
338 | break; | |
339 | case var_auto_boolean: | |
7f19b9a2 | 340 | switch (*(enum auto_boolean*) c->var) |
d318976c | 341 | { |
7f19b9a2 | 342 | case AUTO_BOOLEAN_TRUE: |
d318976c FN |
343 | fputs_filtered ("on", stb->stream); |
344 | break; | |
7f19b9a2 | 345 | case AUTO_BOOLEAN_FALSE: |
d318976c FN |
346 | fputs_filtered ("off", stb->stream); |
347 | break; | |
7f19b9a2 | 348 | case AUTO_BOOLEAN_AUTO: |
d318976c FN |
349 | fputs_filtered ("auto", stb->stream); |
350 | break; | |
351 | default: | |
8e65ff28 | 352 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 353 | _("do_setshow_command: invalid var_auto_boolean")); |
d318976c FN |
354 | break; |
355 | } | |
356 | break; | |
357 | case var_uinteger: | |
358 | if (*(unsigned int *) c->var == UINT_MAX) | |
359 | { | |
360 | fputs_filtered ("unlimited", stb->stream); | |
361 | break; | |
362 | } | |
363 | /* else fall through */ | |
1e8fb976 | 364 | case var_zuinteger: |
d318976c FN |
365 | case var_zinteger: |
366 | fprintf_filtered (stb->stream, "%u", *(unsigned int *) c->var); | |
367 | break; | |
368 | case var_integer: | |
369 | if (*(int *) c->var == INT_MAX) | |
370 | { | |
371 | fputs_filtered ("unlimited", stb->stream); | |
372 | } | |
373 | else | |
374 | fprintf_filtered (stb->stream, "%d", *(int *) c->var); | |
375 | break; | |
376 | ||
377 | default: | |
8a3fe4f8 | 378 | error (_("gdb internal error: bad var_type in do_setshow_command")); |
d318976c | 379 | } |
899506a8 AC |
380 | |
381 | ||
382 | /* FIXME: cagney/2005-02-10: Need to split this in half: code to | |
383 | convert the value into a string (esentially the above); and | |
384 | code to print the value out. For the latter there should be | |
385 | MI and CLI specific versions. */ | |
386 | ||
387 | if (ui_out_is_mi_like_p (uiout)) | |
388 | ui_out_field_stream (uiout, "value", stb); | |
08546159 | 389 | else |
335cca0d | 390 | { |
759ef836 | 391 | char *value = ui_file_xstrdup (stb->stream, NULL); |
cdb27c12 | 392 | |
335cca0d | 393 | make_cleanup (xfree, value); |
08546159 AC |
394 | if (c->show_value_func != NULL) |
395 | c->show_value_func (gdb_stdout, from_tty, c, value); | |
396 | else | |
397 | deprecated_show_value_hack (gdb_stdout, from_tty, c, value); | |
899506a8 | 398 | } |
d318976c | 399 | do_cleanups (old_chain); |
d318976c FN |
400 | } |
401 | else | |
8a3fe4f8 | 402 | error (_("gdb internal error: bad cmd_type in do_setshow_command")); |
9f60d481 | 403 | c->func (c, NULL, from_tty); |
9a4105ab AC |
404 | if (c->type == set_cmd && deprecated_set_hook) |
405 | deprecated_set_hook (c); | |
d318976c FN |
406 | } |
407 | ||
408 | /* Show all the settings in a list of show commands. */ | |
409 | ||
410 | void | |
411 | cmd_show_list (struct cmd_list_element *list, int from_tty, char *prefix) | |
412 | { | |
3b31d625 EZ |
413 | struct cleanup *showlist_chain; |
414 | ||
415 | showlist_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "showlist"); | |
d318976c FN |
416 | for (; list != NULL; list = list->next) |
417 | { | |
418 | /* If we find a prefix, run its list, prefixing our output by its | |
419 | prefix (with "show " skipped). */ | |
d318976c FN |
420 | if (list->prefixlist && !list->abbrev_flag) |
421 | { | |
3b31d625 EZ |
422 | struct cleanup *optionlist_chain |
423 | = make_cleanup_ui_out_tuple_begin_end (uiout, "optionlist"); | |
37fc812e | 424 | char *new_prefix = strstr (list->prefixname, "show ") + 5; |
cdb27c12 | 425 | |
37fc812e DJ |
426 | if (ui_out_is_mi_like_p (uiout)) |
427 | ui_out_field_string (uiout, "prefix", new_prefix); | |
428 | cmd_show_list (*list->prefixlist, from_tty, new_prefix); | |
3b31d625 EZ |
429 | /* Close the tuple. */ |
430 | do_cleanups (optionlist_chain); | |
d318976c | 431 | } |
427c3a89 | 432 | else |
d318976c | 433 | { |
3b31d625 EZ |
434 | struct cleanup *option_chain |
435 | = make_cleanup_ui_out_tuple_begin_end (uiout, "option"); | |
cdb27c12 | 436 | |
d318976c FN |
437 | ui_out_text (uiout, prefix); |
438 | ui_out_field_string (uiout, "name", list->name); | |
439 | ui_out_text (uiout, ": "); | |
427c3a89 DJ |
440 | if (list->type == show_cmd) |
441 | do_setshow_command ((char *) NULL, from_tty, list); | |
442 | else | |
443 | cmd_func (list, NULL, from_tty); | |
3b31d625 EZ |
444 | /* Close the tuple. */ |
445 | do_cleanups (option_chain); | |
d318976c | 446 | } |
d318976c | 447 | } |
3b31d625 EZ |
448 | /* Close the tuple. */ |
449 | do_cleanups (showlist_chain); | |
d318976c FN |
450 | } |
451 |