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 | |
a9762ec7 | 7 | the Free Software Foundation; either version 3 of the License, or |
d318976c FN |
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 | |
a9762ec7 | 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
d318976c FN |
17 | |
18 | #include "defs.h" | |
dbda9972 | 19 | #include "readline/tilde.h" |
d318976c FN |
20 | #include "value.h" |
21 | #include <ctype.h> | |
d318976c | 22 | #include "gdb_string.h" |
d318976c | 23 | |
d318976c | 24 | #include "ui-out.h" |
d318976c FN |
25 | |
26 | #include "cli/cli-decode.h" | |
27 | #include "cli/cli-cmds.h" | |
28 | #include "cli/cli-setshow.h" | |
29 | ||
30 | /* Prototypes for local functions */ | |
31 | ||
32 | static int parse_binary_operation (char *); | |
33 | ||
d318976c | 34 | \f |
7f19b9a2 | 35 | static enum auto_boolean |
d318976c FN |
36 | parse_auto_binary_operation (const char *arg) |
37 | { | |
38 | if (arg != NULL && *arg != '\0') | |
39 | { | |
40 | int length = strlen (arg); | |
41 | while (isspace (arg[length - 1]) && length > 0) | |
42 | length--; | |
43 | if (strncmp (arg, "on", length) == 0 | |
44 | || strncmp (arg, "1", length) == 0 | |
45 | || strncmp (arg, "yes", length) == 0 | |
46 | || strncmp (arg, "enable", length) == 0) | |
7f19b9a2 | 47 | return AUTO_BOOLEAN_TRUE; |
d318976c FN |
48 | else if (strncmp (arg, "off", length) == 0 |
49 | || strncmp (arg, "0", length) == 0 | |
50 | || strncmp (arg, "no", length) == 0 | |
51 | || strncmp (arg, "disable", length) == 0) | |
7f19b9a2 | 52 | return AUTO_BOOLEAN_FALSE; |
d318976c FN |
53 | else if (strncmp (arg, "auto", length) == 0 |
54 | || (strncmp (arg, "-1", length) == 0 && length > 1)) | |
7f19b9a2 | 55 | return AUTO_BOOLEAN_AUTO; |
d318976c | 56 | } |
8a3fe4f8 | 57 | error (_("\"on\", \"off\" or \"auto\" expected.")); |
7f19b9a2 | 58 | return AUTO_BOOLEAN_AUTO; /* pacify GCC */ |
d318976c FN |
59 | } |
60 | ||
61 | static int | |
62 | parse_binary_operation (char *arg) | |
63 | { | |
64 | int length; | |
65 | ||
66 | if (!arg || !*arg) | |
67 | return 1; | |
68 | ||
69 | length = strlen (arg); | |
70 | ||
71 | while (arg[length - 1] == ' ' || arg[length - 1] == '\t') | |
72 | length--; | |
73 | ||
74 | if (strncmp (arg, "on", length) == 0 | |
75 | || strncmp (arg, "1", length) == 0 | |
76 | || strncmp (arg, "yes", length) == 0 | |
77 | || strncmp (arg, "enable", length) == 0) | |
78 | return 1; | |
79 | else if (strncmp (arg, "off", length) == 0 | |
80 | || strncmp (arg, "0", length) == 0 | |
81 | || strncmp (arg, "no", length) == 0 | |
82 | || strncmp (arg, "disable", length) == 0) | |
83 | return 0; | |
84 | else | |
85 | { | |
8a3fe4f8 | 86 | error (_("\"on\" or \"off\" expected.")); |
d318976c FN |
87 | return 0; |
88 | } | |
89 | } | |
90 | \f | |
08546159 AC |
91 | void |
92 | deprecated_show_value_hack (struct ui_file *ignore_file, | |
93 | int ignore_from_tty, | |
94 | struct cmd_list_element *c, | |
95 | const char *value) | |
96 | { | |
4d28ad1e AC |
97 | /* If there's no command or value, don't try to print it out. */ |
98 | if (c == NULL || value == NULL) | |
99 | return; | |
08546159 AC |
100 | /* Print doc minus "show" at start. */ |
101 | print_doc_line (gdb_stdout, c->doc + 5); | |
102 | switch (c->var_type) | |
103 | { | |
104 | case var_string: | |
105 | case var_string_noescape: | |
b4b4ac0b | 106 | case var_optional_filename: |
08546159 AC |
107 | case var_filename: |
108 | case var_enum: | |
109 | printf_filtered ((" is \"%s\".\n"), value); | |
110 | break; | |
111 | default: | |
112 | printf_filtered ((" is %s.\n"), value); | |
113 | break; | |
114 | } | |
115 | } | |
116 | ||
d318976c FN |
117 | /* Do a "set" or "show" command. ARG is NULL if no argument, or the text |
118 | of the argument, and FROM_TTY is nonzero if this command is being entered | |
119 | directly by the user (i.e. these are just like any other | |
120 | command). C is the command list element for the command. */ | |
121 | ||
122 | void | |
123 | do_setshow_command (char *arg, int from_tty, struct cmd_list_element *c) | |
124 | { | |
125 | if (c->type == set_cmd) | |
126 | { | |
127 | switch (c->var_type) | |
128 | { | |
129 | case var_string: | |
130 | { | |
131 | char *new; | |
132 | char *p; | |
133 | char *q; | |
134 | int ch; | |
135 | ||
136 | if (arg == NULL) | |
137 | arg = ""; | |
138 | new = (char *) xmalloc (strlen (arg) + 2); | |
139 | p = arg; | |
140 | q = new; | |
141 | while ((ch = *p++) != '\000') | |
142 | { | |
143 | if (ch == '\\') | |
144 | { | |
145 | /* \ at end of argument is used after spaces | |
146 | so they won't be lost. */ | |
147 | /* This is obsolete now that we no longer strip | |
148 | trailing whitespace and actually, the backslash | |
149 | didn't get here in my test, readline or | |
150 | something did something funky with a backslash | |
151 | right before a newline. */ | |
152 | if (*p == 0) | |
153 | break; | |
154 | ch = parse_escape (&p); | |
155 | if (ch == 0) | |
156 | break; /* C loses */ | |
157 | else if (ch > 0) | |
158 | *q++ = ch; | |
159 | } | |
160 | else | |
161 | *q++ = ch; | |
162 | } | |
163 | #if 0 | |
164 | if (*(p - 1) != '\\') | |
165 | *q++ = ' '; | |
166 | #endif | |
167 | *q++ = '\0'; | |
168 | new = (char *) xrealloc (new, q - new); | |
169 | if (*(char **) c->var != NULL) | |
b8c9b27d | 170 | xfree (*(char **) c->var); |
d318976c FN |
171 | *(char **) c->var = new; |
172 | } | |
173 | break; | |
174 | case var_string_noescape: | |
175 | if (arg == NULL) | |
176 | arg = ""; | |
177 | if (*(char **) c->var != NULL) | |
b8c9b27d | 178 | xfree (*(char **) c->var); |
d318976c FN |
179 | *(char **) c->var = savestring (arg, strlen (arg)); |
180 | break; | |
b4b4ac0b | 181 | case var_optional_filename: |
d318976c | 182 | if (arg == NULL) |
525226b5 AC |
183 | arg = ""; |
184 | if (*(char **) c->var != NULL) | |
185 | xfree (*(char **) c->var); | |
186 | *(char **) c->var = savestring (arg, strlen (arg)); | |
187 | break; | |
188 | case var_filename: | |
189 | if (arg == NULL) | |
190 | error_no_arg (_("filename to set it to.")); | |
d318976c | 191 | if (*(char **) c->var != NULL) |
b8c9b27d | 192 | xfree (*(char **) c->var); |
1430be3e MR |
193 | { |
194 | /* Clear trailing whitespace of filename. */ | |
195 | char *ptr = arg + strlen (arg) - 1; | |
196 | while (ptr >= arg && (*ptr == ' ' || *ptr == '\t')) | |
197 | ptr--; | |
198 | *(ptr + 1) = '\0'; | |
199 | } | |
d318976c FN |
200 | *(char **) c->var = tilde_expand (arg); |
201 | break; | |
202 | case var_boolean: | |
203 | *(int *) c->var = parse_binary_operation (arg); | |
204 | break; | |
205 | case var_auto_boolean: | |
7f19b9a2 | 206 | *(enum auto_boolean *) c->var = parse_auto_binary_operation (arg); |
d318976c FN |
207 | break; |
208 | case var_uinteger: | |
209 | if (arg == NULL) | |
e2e0b3e5 | 210 | error_no_arg (_("integer to set it to.")); |
d318976c FN |
211 | *(unsigned int *) c->var = parse_and_eval_long (arg); |
212 | if (*(unsigned int *) c->var == 0) | |
213 | *(unsigned int *) c->var = UINT_MAX; | |
214 | break; | |
215 | case var_integer: | |
216 | { | |
217 | unsigned int val; | |
218 | if (arg == NULL) | |
e2e0b3e5 | 219 | error_no_arg (_("integer to set it to.")); |
d318976c FN |
220 | val = parse_and_eval_long (arg); |
221 | if (val == 0) | |
222 | *(int *) c->var = INT_MAX; | |
223 | else if (val >= INT_MAX) | |
8a3fe4f8 | 224 | error (_("integer %u out of range"), val); |
d318976c FN |
225 | else |
226 | *(int *) c->var = val; | |
227 | break; | |
228 | } | |
229 | case var_zinteger: | |
230 | if (arg == NULL) | |
e2e0b3e5 | 231 | error_no_arg (_("integer to set it to.")); |
d318976c FN |
232 | *(int *) c->var = parse_and_eval_long (arg); |
233 | break; | |
234 | case var_enum: | |
235 | { | |
236 | int i; | |
237 | int len; | |
238 | int nmatches; | |
239 | const char *match = NULL; | |
240 | char *p; | |
241 | ||
242 | /* if no argument was supplied, print an informative error message */ | |
243 | if (arg == NULL) | |
244 | { | |
245 | char msg[1024]; | |
246 | strcpy (msg, "Requires an argument. Valid arguments are "); | |
247 | for (i = 0; c->enums[i]; i++) | |
248 | { | |
249 | if (i != 0) | |
250 | strcat (msg, ", "); | |
251 | strcat (msg, c->enums[i]); | |
252 | } | |
253 | strcat (msg, "."); | |
8a3fe4f8 | 254 | error (("%s"), msg); |
d318976c FN |
255 | } |
256 | ||
257 | p = strchr (arg, ' '); | |
258 | ||
259 | if (p) | |
260 | len = p - arg; | |
261 | else | |
262 | len = strlen (arg); | |
263 | ||
264 | nmatches = 0; | |
265 | for (i = 0; c->enums[i]; i++) | |
266 | if (strncmp (arg, c->enums[i], len) == 0) | |
267 | { | |
268 | if (c->enums[i][len] == '\0') | |
269 | { | |
270 | match = c->enums[i]; | |
271 | nmatches = 1; | |
272 | break; /* exact match. */ | |
273 | } | |
274 | else | |
275 | { | |
276 | match = c->enums[i]; | |
277 | nmatches++; | |
278 | } | |
279 | } | |
280 | ||
281 | if (nmatches <= 0) | |
8a3fe4f8 | 282 | error (_("Undefined item: \"%s\"."), arg); |
d318976c FN |
283 | |
284 | if (nmatches > 1) | |
8a3fe4f8 | 285 | error (_("Ambiguous item \"%s\"."), arg); |
d318976c FN |
286 | |
287 | *(const char **) c->var = match; | |
288 | } | |
289 | break; | |
290 | default: | |
8a3fe4f8 | 291 | error (_("gdb internal error: bad var_type in do_setshow_command")); |
d318976c FN |
292 | } |
293 | } | |
294 | else if (c->type == show_cmd) | |
295 | { | |
d318976c FN |
296 | struct cleanup *old_chain; |
297 | struct ui_stream *stb; | |
d318976c FN |
298 | |
299 | stb = ui_out_stream_new (uiout); | |
300 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
d318976c | 301 | |
552c04a7 TT |
302 | /* Possibly call the pre hook. */ |
303 | if (c->pre_show_hook) | |
304 | (c->pre_show_hook) (c); | |
305 | ||
d318976c FN |
306 | switch (c->var_type) |
307 | { | |
308 | case var_string: | |
3b113db7 DJ |
309 | if (*(char **) c->var) |
310 | fputstr_filtered (*(char **) c->var, '"', stb->stream); | |
d318976c FN |
311 | break; |
312 | case var_string_noescape: | |
b4b4ac0b | 313 | case var_optional_filename: |
d318976c FN |
314 | case var_filename: |
315 | case var_enum: | |
316 | if (*(char **) c->var) | |
317 | fputs_filtered (*(char **) c->var, stb->stream); | |
d318976c FN |
318 | break; |
319 | case var_boolean: | |
320 | fputs_filtered (*(int *) c->var ? "on" : "off", stb->stream); | |
321 | break; | |
322 | case var_auto_boolean: | |
7f19b9a2 | 323 | switch (*(enum auto_boolean*) c->var) |
d318976c | 324 | { |
7f19b9a2 | 325 | case AUTO_BOOLEAN_TRUE: |
d318976c FN |
326 | fputs_filtered ("on", stb->stream); |
327 | break; | |
7f19b9a2 | 328 | case AUTO_BOOLEAN_FALSE: |
d318976c FN |
329 | fputs_filtered ("off", stb->stream); |
330 | break; | |
7f19b9a2 | 331 | case AUTO_BOOLEAN_AUTO: |
d318976c FN |
332 | fputs_filtered ("auto", stb->stream); |
333 | break; | |
334 | default: | |
8e65ff28 | 335 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 336 | _("do_setshow_command: invalid var_auto_boolean")); |
d318976c FN |
337 | break; |
338 | } | |
339 | break; | |
340 | case var_uinteger: | |
341 | if (*(unsigned int *) c->var == UINT_MAX) | |
342 | { | |
343 | fputs_filtered ("unlimited", stb->stream); | |
344 | break; | |
345 | } | |
346 | /* else fall through */ | |
347 | case var_zinteger: | |
348 | fprintf_filtered (stb->stream, "%u", *(unsigned int *) c->var); | |
349 | break; | |
350 | case var_integer: | |
351 | if (*(int *) c->var == INT_MAX) | |
352 | { | |
353 | fputs_filtered ("unlimited", stb->stream); | |
354 | } | |
355 | else | |
356 | fprintf_filtered (stb->stream, "%d", *(int *) c->var); | |
357 | break; | |
358 | ||
359 | default: | |
8a3fe4f8 | 360 | error (_("gdb internal error: bad var_type in do_setshow_command")); |
d318976c | 361 | } |
899506a8 AC |
362 | |
363 | ||
364 | /* FIXME: cagney/2005-02-10: Need to split this in half: code to | |
365 | convert the value into a string (esentially the above); and | |
366 | code to print the value out. For the latter there should be | |
367 | MI and CLI specific versions. */ | |
368 | ||
369 | if (ui_out_is_mi_like_p (uiout)) | |
370 | ui_out_field_stream (uiout, "value", stb); | |
08546159 | 371 | else |
335cca0d AC |
372 | { |
373 | long length; | |
374 | char *value = ui_file_xstrdup (stb->stream, &length); | |
375 | make_cleanup (xfree, value); | |
08546159 AC |
376 | if (c->show_value_func != NULL) |
377 | c->show_value_func (gdb_stdout, from_tty, c, value); | |
378 | else | |
379 | deprecated_show_value_hack (gdb_stdout, from_tty, c, value); | |
899506a8 | 380 | } |
d318976c | 381 | do_cleanups (old_chain); |
d318976c FN |
382 | } |
383 | else | |
8a3fe4f8 | 384 | error (_("gdb internal error: bad cmd_type in do_setshow_command")); |
9f60d481 | 385 | c->func (c, NULL, from_tty); |
9a4105ab AC |
386 | if (c->type == set_cmd && deprecated_set_hook) |
387 | deprecated_set_hook (c); | |
d318976c FN |
388 | } |
389 | ||
390 | /* Show all the settings in a list of show commands. */ | |
391 | ||
392 | void | |
393 | cmd_show_list (struct cmd_list_element *list, int from_tty, char *prefix) | |
394 | { | |
3b31d625 EZ |
395 | struct cleanup *showlist_chain; |
396 | ||
397 | showlist_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "showlist"); | |
d318976c FN |
398 | for (; list != NULL; list = list->next) |
399 | { | |
400 | /* If we find a prefix, run its list, prefixing our output by its | |
401 | prefix (with "show " skipped). */ | |
d318976c FN |
402 | if (list->prefixlist && !list->abbrev_flag) |
403 | { | |
3b31d625 EZ |
404 | struct cleanup *optionlist_chain |
405 | = make_cleanup_ui_out_tuple_begin_end (uiout, "optionlist"); | |
37fc812e DJ |
406 | char *new_prefix = strstr (list->prefixname, "show ") + 5; |
407 | if (ui_out_is_mi_like_p (uiout)) | |
408 | ui_out_field_string (uiout, "prefix", new_prefix); | |
409 | cmd_show_list (*list->prefixlist, from_tty, new_prefix); | |
3b31d625 EZ |
410 | /* Close the tuple. */ |
411 | do_cleanups (optionlist_chain); | |
d318976c | 412 | } |
427c3a89 | 413 | else |
d318976c | 414 | { |
3b31d625 EZ |
415 | struct cleanup *option_chain |
416 | = make_cleanup_ui_out_tuple_begin_end (uiout, "option"); | |
d318976c FN |
417 | ui_out_text (uiout, prefix); |
418 | ui_out_field_string (uiout, "name", list->name); | |
419 | ui_out_text (uiout, ": "); | |
427c3a89 DJ |
420 | if (list->type == show_cmd) |
421 | do_setshow_command ((char *) NULL, from_tty, list); | |
422 | else | |
423 | cmd_func (list, NULL, from_tty); | |
3b31d625 EZ |
424 | /* Close the tuple. */ |
425 | do_cleanups (option_chain); | |
d318976c | 426 | } |
d318976c | 427 | } |
3b31d625 EZ |
428 | /* Close the tuple. */ |
429 | do_cleanups (showlist_chain); | |
d318976c FN |
430 | } |
431 |