Commit | Line | Data |
---|---|---|
d318976c | 1 | /* Handle set and show GDB commands. |
8926118c | 2 | |
6aba47ca | 3 | Copyright (c) 2000, 2001, 2002, 2003, 2007 Free Software Foundation, Inc. |
d318976c FN |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
10f9c213 EZ |
17 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
18 | Boston, MA 02110-1301, USA. */ | |
d318976c FN |
19 | |
20 | #include "defs.h" | |
dbda9972 | 21 | #include "readline/tilde.h" |
d318976c FN |
22 | #include "value.h" |
23 | #include <ctype.h> | |
d318976c | 24 | #include "gdb_string.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); | |
43 | while (isspace (arg[length - 1]) && length > 0) | |
44 | length--; | |
45 | if (strncmp (arg, "on", length) == 0 | |
46 | || strncmp (arg, "1", length) == 0 | |
47 | || strncmp (arg, "yes", length) == 0 | |
48 | || strncmp (arg, "enable", length) == 0) | |
7f19b9a2 | 49 | return AUTO_BOOLEAN_TRUE; |
d318976c FN |
50 | else if (strncmp (arg, "off", length) == 0 |
51 | || strncmp (arg, "0", length) == 0 | |
52 | || strncmp (arg, "no", length) == 0 | |
53 | || strncmp (arg, "disable", length) == 0) | |
7f19b9a2 | 54 | return AUTO_BOOLEAN_FALSE; |
d318976c FN |
55 | else if (strncmp (arg, "auto", length) == 0 |
56 | || (strncmp (arg, "-1", length) == 0 && length > 1)) | |
7f19b9a2 | 57 | return AUTO_BOOLEAN_AUTO; |
d318976c | 58 | } |
8a3fe4f8 | 59 | error (_("\"on\", \"off\" or \"auto\" expected.")); |
7f19b9a2 | 60 | return AUTO_BOOLEAN_AUTO; /* pacify GCC */ |
d318976c FN |
61 | } |
62 | ||
63 | static int | |
64 | parse_binary_operation (char *arg) | |
65 | { | |
66 | int length; | |
67 | ||
68 | if (!arg || !*arg) | |
69 | return 1; | |
70 | ||
71 | length = strlen (arg); | |
72 | ||
73 | while (arg[length - 1] == ' ' || arg[length - 1] == '\t') | |
74 | length--; | |
75 | ||
76 | if (strncmp (arg, "on", length) == 0 | |
77 | || strncmp (arg, "1", length) == 0 | |
78 | || strncmp (arg, "yes", length) == 0 | |
79 | || strncmp (arg, "enable", length) == 0) | |
80 | return 1; | |
81 | else if (strncmp (arg, "off", length) == 0 | |
82 | || strncmp (arg, "0", length) == 0 | |
83 | || strncmp (arg, "no", length) == 0 | |
84 | || strncmp (arg, "disable", length) == 0) | |
85 | return 0; | |
86 | else | |
87 | { | |
8a3fe4f8 | 88 | error (_("\"on\" or \"off\" expected.")); |
d318976c FN |
89 | return 0; |
90 | } | |
91 | } | |
92 | \f | |
08546159 AC |
93 | void |
94 | deprecated_show_value_hack (struct ui_file *ignore_file, | |
95 | int ignore_from_tty, | |
96 | struct cmd_list_element *c, | |
97 | const char *value) | |
98 | { | |
4d28ad1e AC |
99 | /* If there's no command or value, don't try to print it out. */ |
100 | if (c == NULL || value == NULL) | |
101 | return; | |
08546159 AC |
102 | /* Print doc minus "show" at start. */ |
103 | print_doc_line (gdb_stdout, c->doc + 5); | |
104 | switch (c->var_type) | |
105 | { | |
106 | case var_string: | |
107 | case var_string_noescape: | |
b4b4ac0b | 108 | case var_optional_filename: |
08546159 AC |
109 | case var_filename: |
110 | case var_enum: | |
111 | printf_filtered ((" is \"%s\".\n"), value); | |
112 | break; | |
113 | default: | |
114 | printf_filtered ((" is %s.\n"), value); | |
115 | break; | |
116 | } | |
117 | } | |
118 | ||
d318976c FN |
119 | /* Do a "set" or "show" command. ARG is NULL if no argument, or the text |
120 | of the argument, and FROM_TTY is nonzero if this command is being entered | |
121 | directly by the user (i.e. these are just like any other | |
122 | command). C is the command list element for the command. */ | |
123 | ||
124 | void | |
125 | do_setshow_command (char *arg, int from_tty, struct cmd_list_element *c) | |
126 | { | |
127 | if (c->type == set_cmd) | |
128 | { | |
129 | switch (c->var_type) | |
130 | { | |
131 | case var_string: | |
132 | { | |
133 | char *new; | |
134 | char *p; | |
135 | char *q; | |
136 | int ch; | |
137 | ||
138 | if (arg == NULL) | |
139 | arg = ""; | |
140 | new = (char *) xmalloc (strlen (arg) + 2); | |
141 | p = arg; | |
142 | q = new; | |
143 | while ((ch = *p++) != '\000') | |
144 | { | |
145 | if (ch == '\\') | |
146 | { | |
147 | /* \ at end of argument is used after spaces | |
148 | so they won't be lost. */ | |
149 | /* This is obsolete now that we no longer strip | |
150 | trailing whitespace and actually, the backslash | |
151 | didn't get here in my test, readline or | |
152 | something did something funky with a backslash | |
153 | right before a newline. */ | |
154 | if (*p == 0) | |
155 | break; | |
156 | ch = parse_escape (&p); | |
157 | if (ch == 0) | |
158 | break; /* C loses */ | |
159 | else if (ch > 0) | |
160 | *q++ = ch; | |
161 | } | |
162 | else | |
163 | *q++ = ch; | |
164 | } | |
165 | #if 0 | |
166 | if (*(p - 1) != '\\') | |
167 | *q++ = ' '; | |
168 | #endif | |
169 | *q++ = '\0'; | |
170 | new = (char *) xrealloc (new, q - new); | |
171 | if (*(char **) c->var != NULL) | |
b8c9b27d | 172 | xfree (*(char **) c->var); |
d318976c FN |
173 | *(char **) c->var = new; |
174 | } | |
175 | break; | |
176 | case var_string_noescape: | |
177 | if (arg == NULL) | |
178 | arg = ""; | |
179 | if (*(char **) c->var != NULL) | |
b8c9b27d | 180 | xfree (*(char **) c->var); |
d318976c FN |
181 | *(char **) c->var = savestring (arg, strlen (arg)); |
182 | break; | |
b4b4ac0b | 183 | case var_optional_filename: |
d318976c | 184 | if (arg == NULL) |
525226b5 AC |
185 | arg = ""; |
186 | if (*(char **) c->var != NULL) | |
187 | xfree (*(char **) c->var); | |
188 | *(char **) c->var = savestring (arg, strlen (arg)); | |
189 | break; | |
190 | case var_filename: | |
191 | if (arg == NULL) | |
192 | error_no_arg (_("filename to set it to.")); | |
d318976c | 193 | if (*(char **) c->var != NULL) |
b8c9b27d | 194 | xfree (*(char **) c->var); |
1430be3e MR |
195 | { |
196 | /* Clear trailing whitespace of filename. */ | |
197 | char *ptr = arg + strlen (arg) - 1; | |
198 | while (ptr >= arg && (*ptr == ' ' || *ptr == '\t')) | |
199 | ptr--; | |
200 | *(ptr + 1) = '\0'; | |
201 | } | |
d318976c FN |
202 | *(char **) c->var = tilde_expand (arg); |
203 | break; | |
204 | case var_boolean: | |
205 | *(int *) c->var = parse_binary_operation (arg); | |
206 | break; | |
207 | case var_auto_boolean: | |
7f19b9a2 | 208 | *(enum auto_boolean *) c->var = parse_auto_binary_operation (arg); |
d318976c FN |
209 | break; |
210 | case var_uinteger: | |
211 | if (arg == NULL) | |
e2e0b3e5 | 212 | error_no_arg (_("integer to set it to.")); |
d318976c FN |
213 | *(unsigned int *) c->var = parse_and_eval_long (arg); |
214 | if (*(unsigned int *) c->var == 0) | |
215 | *(unsigned int *) c->var = UINT_MAX; | |
216 | break; | |
217 | case var_integer: | |
218 | { | |
219 | unsigned int val; | |
220 | if (arg == NULL) | |
e2e0b3e5 | 221 | error_no_arg (_("integer to set it to.")); |
d318976c FN |
222 | val = parse_and_eval_long (arg); |
223 | if (val == 0) | |
224 | *(int *) c->var = INT_MAX; | |
225 | else if (val >= INT_MAX) | |
8a3fe4f8 | 226 | error (_("integer %u out of range"), val); |
d318976c FN |
227 | else |
228 | *(int *) c->var = val; | |
229 | break; | |
230 | } | |
231 | case var_zinteger: | |
232 | if (arg == NULL) | |
e2e0b3e5 | 233 | error_no_arg (_("integer to set it to.")); |
d318976c FN |
234 | *(int *) c->var = parse_and_eval_long (arg); |
235 | break; | |
236 | case var_enum: | |
237 | { | |
238 | int i; | |
239 | int len; | |
240 | int nmatches; | |
241 | const char *match = NULL; | |
242 | char *p; | |
243 | ||
244 | /* if no argument was supplied, print an informative error message */ | |
245 | if (arg == NULL) | |
246 | { | |
247 | char msg[1024]; | |
248 | strcpy (msg, "Requires an argument. Valid arguments are "); | |
249 | for (i = 0; c->enums[i]; i++) | |
250 | { | |
251 | if (i != 0) | |
252 | strcat (msg, ", "); | |
253 | strcat (msg, c->enums[i]); | |
254 | } | |
255 | strcat (msg, "."); | |
8a3fe4f8 | 256 | error (("%s"), msg); |
d318976c FN |
257 | } |
258 | ||
259 | p = strchr (arg, ' '); | |
260 | ||
261 | if (p) | |
262 | len = p - arg; | |
263 | else | |
264 | len = strlen (arg); | |
265 | ||
266 | nmatches = 0; | |
267 | for (i = 0; c->enums[i]; i++) | |
268 | if (strncmp (arg, c->enums[i], len) == 0) | |
269 | { | |
270 | if (c->enums[i][len] == '\0') | |
271 | { | |
272 | match = c->enums[i]; | |
273 | nmatches = 1; | |
274 | break; /* exact match. */ | |
275 | } | |
276 | else | |
277 | { | |
278 | match = c->enums[i]; | |
279 | nmatches++; | |
280 | } | |
281 | } | |
282 | ||
283 | if (nmatches <= 0) | |
8a3fe4f8 | 284 | error (_("Undefined item: \"%s\"."), arg); |
d318976c FN |
285 | |
286 | if (nmatches > 1) | |
8a3fe4f8 | 287 | error (_("Ambiguous item \"%s\"."), arg); |
d318976c FN |
288 | |
289 | *(const char **) c->var = match; | |
290 | } | |
291 | break; | |
292 | default: | |
8a3fe4f8 | 293 | error (_("gdb internal error: bad var_type in do_setshow_command")); |
d318976c FN |
294 | } |
295 | } | |
296 | else if (c->type == show_cmd) | |
297 | { | |
d318976c FN |
298 | struct cleanup *old_chain; |
299 | struct ui_stream *stb; | |
d318976c FN |
300 | |
301 | stb = ui_out_stream_new (uiout); | |
302 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
d318976c | 303 | |
552c04a7 TT |
304 | /* Possibly call the pre hook. */ |
305 | if (c->pre_show_hook) | |
306 | (c->pre_show_hook) (c); | |
307 | ||
d318976c FN |
308 | switch (c->var_type) |
309 | { | |
310 | case var_string: | |
3b113db7 DJ |
311 | if (*(char **) c->var) |
312 | fputstr_filtered (*(char **) c->var, '"', stb->stream); | |
d318976c FN |
313 | break; |
314 | case var_string_noescape: | |
b4b4ac0b | 315 | case var_optional_filename: |
d318976c FN |
316 | case var_filename: |
317 | case var_enum: | |
318 | if (*(char **) c->var) | |
319 | fputs_filtered (*(char **) c->var, stb->stream); | |
d318976c FN |
320 | break; |
321 | case var_boolean: | |
322 | fputs_filtered (*(int *) c->var ? "on" : "off", stb->stream); | |
323 | break; | |
324 | case var_auto_boolean: | |
7f19b9a2 | 325 | switch (*(enum auto_boolean*) c->var) |
d318976c | 326 | { |
7f19b9a2 | 327 | case AUTO_BOOLEAN_TRUE: |
d318976c FN |
328 | fputs_filtered ("on", stb->stream); |
329 | break; | |
7f19b9a2 | 330 | case AUTO_BOOLEAN_FALSE: |
d318976c FN |
331 | fputs_filtered ("off", stb->stream); |
332 | break; | |
7f19b9a2 | 333 | case AUTO_BOOLEAN_AUTO: |
d318976c FN |
334 | fputs_filtered ("auto", stb->stream); |
335 | break; | |
336 | default: | |
8e65ff28 | 337 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 338 | _("do_setshow_command: invalid var_auto_boolean")); |
d318976c FN |
339 | break; |
340 | } | |
341 | break; | |
342 | case var_uinteger: | |
343 | if (*(unsigned int *) c->var == UINT_MAX) | |
344 | { | |
345 | fputs_filtered ("unlimited", stb->stream); | |
346 | break; | |
347 | } | |
348 | /* else fall through */ | |
349 | case var_zinteger: | |
350 | fprintf_filtered (stb->stream, "%u", *(unsigned int *) c->var); | |
351 | break; | |
352 | case var_integer: | |
353 | if (*(int *) c->var == INT_MAX) | |
354 | { | |
355 | fputs_filtered ("unlimited", stb->stream); | |
356 | } | |
357 | else | |
358 | fprintf_filtered (stb->stream, "%d", *(int *) c->var); | |
359 | break; | |
360 | ||
361 | default: | |
8a3fe4f8 | 362 | error (_("gdb internal error: bad var_type in do_setshow_command")); |
d318976c | 363 | } |
899506a8 AC |
364 | |
365 | ||
366 | /* FIXME: cagney/2005-02-10: Need to split this in half: code to | |
367 | convert the value into a string (esentially the above); and | |
368 | code to print the value out. For the latter there should be | |
369 | MI and CLI specific versions. */ | |
370 | ||
371 | if (ui_out_is_mi_like_p (uiout)) | |
372 | ui_out_field_stream (uiout, "value", stb); | |
08546159 | 373 | else |
335cca0d AC |
374 | { |
375 | long length; | |
376 | char *value = ui_file_xstrdup (stb->stream, &length); | |
377 | make_cleanup (xfree, value); | |
08546159 AC |
378 | if (c->show_value_func != NULL) |
379 | c->show_value_func (gdb_stdout, from_tty, c, value); | |
380 | else | |
381 | deprecated_show_value_hack (gdb_stdout, from_tty, c, value); | |
899506a8 | 382 | } |
d318976c | 383 | do_cleanups (old_chain); |
d318976c FN |
384 | } |
385 | else | |
8a3fe4f8 | 386 | error (_("gdb internal error: bad cmd_type in do_setshow_command")); |
9f60d481 | 387 | c->func (c, NULL, from_tty); |
9a4105ab AC |
388 | if (c->type == set_cmd && deprecated_set_hook) |
389 | deprecated_set_hook (c); | |
d318976c FN |
390 | } |
391 | ||
392 | /* Show all the settings in a list of show commands. */ | |
393 | ||
394 | void | |
395 | cmd_show_list (struct cmd_list_element *list, int from_tty, char *prefix) | |
396 | { | |
3b31d625 EZ |
397 | struct cleanup *showlist_chain; |
398 | ||
399 | showlist_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "showlist"); | |
d318976c FN |
400 | for (; list != NULL; list = list->next) |
401 | { | |
402 | /* If we find a prefix, run its list, prefixing our output by its | |
403 | prefix (with "show " skipped). */ | |
d318976c FN |
404 | if (list->prefixlist && !list->abbrev_flag) |
405 | { | |
3b31d625 EZ |
406 | struct cleanup *optionlist_chain |
407 | = make_cleanup_ui_out_tuple_begin_end (uiout, "optionlist"); | |
37fc812e DJ |
408 | char *new_prefix = strstr (list->prefixname, "show ") + 5; |
409 | if (ui_out_is_mi_like_p (uiout)) | |
410 | ui_out_field_string (uiout, "prefix", new_prefix); | |
411 | cmd_show_list (*list->prefixlist, from_tty, new_prefix); | |
3b31d625 EZ |
412 | /* Close the tuple. */ |
413 | do_cleanups (optionlist_chain); | |
d318976c | 414 | } |
427c3a89 | 415 | else |
d318976c | 416 | { |
3b31d625 EZ |
417 | struct cleanup *option_chain |
418 | = make_cleanup_ui_out_tuple_begin_end (uiout, "option"); | |
d318976c FN |
419 | ui_out_text (uiout, prefix); |
420 | ui_out_field_string (uiout, "name", list->name); | |
421 | ui_out_text (uiout, ": "); | |
427c3a89 DJ |
422 | if (list->type == show_cmd) |
423 | do_setshow_command ((char *) NULL, from_tty, list); | |
424 | else | |
425 | cmd_func (list, NULL, from_tty); | |
3b31d625 EZ |
426 | /* Close the tuple. */ |
427 | do_cleanups (option_chain); | |
d318976c | 428 | } |
d318976c | 429 | } |
3b31d625 EZ |
430 | /* Close the tuple. */ |
431 | do_cleanups (showlist_chain); | |
d318976c FN |
432 | } |
433 |