Commit | Line | Data |
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d318976c | 1 | /* Handle set and show GDB commands. |
8926118c | 2 | |
42a4f53d | 3 | Copyright (C) 2000-2019 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> | |
f870a310 | 22 | #include "arch-utils.h" |
76727919 | 23 | #include "observable.h" |
d318976c | 24 | |
d318976c | 25 | #include "ui-out.h" |
d318976c FN |
26 | |
27 | #include "cli/cli-decode.h" | |
28 | #include "cli/cli-cmds.h" | |
29 | #include "cli/cli-setshow.h" | |
f81d1120 | 30 | #include "cli/cli-utils.h" |
d318976c | 31 | |
5b9afe8a YQ |
32 | /* Return true if the change of command parameter should be notified. */ |
33 | ||
34 | static int | |
35 | notify_command_param_changed_p (int param_changed, struct cmd_list_element *c) | |
36 | { | |
37 | if (param_changed == 0) | |
38 | return 0; | |
39 | ||
fe978cb0 PA |
40 | if (c->theclass == class_maintenance || c->theclass == class_deprecated |
41 | || c->theclass == class_obscure) | |
5b9afe8a YQ |
42 | return 0; |
43 | ||
44 | return 1; | |
45 | } | |
46 | ||
d318976c | 47 | \f |
7f19b9a2 | 48 | static enum auto_boolean |
d318976c FN |
49 | parse_auto_binary_operation (const char *arg) |
50 | { | |
51 | if (arg != NULL && *arg != '\0') | |
52 | { | |
53 | int length = strlen (arg); | |
cdb27c12 | 54 | |
d318976c FN |
55 | while (isspace (arg[length - 1]) && length > 0) |
56 | length--; | |
dee7b4c8 PA |
57 | |
58 | /* Note that "o" is ambiguous. */ | |
59 | ||
60 | if ((length == 2 && strncmp (arg, "on", length) == 0) | |
d318976c FN |
61 | || strncmp (arg, "1", length) == 0 |
62 | || strncmp (arg, "yes", length) == 0 | |
63 | || strncmp (arg, "enable", length) == 0) | |
7f19b9a2 | 64 | return AUTO_BOOLEAN_TRUE; |
dee7b4c8 | 65 | else if ((length >= 2 && strncmp (arg, "off", length) == 0) |
d318976c FN |
66 | || strncmp (arg, "0", length) == 0 |
67 | || strncmp (arg, "no", length) == 0 | |
68 | || strncmp (arg, "disable", length) == 0) | |
7f19b9a2 | 69 | return AUTO_BOOLEAN_FALSE; |
d318976c | 70 | else if (strncmp (arg, "auto", length) == 0 |
dee7b4c8 | 71 | || (length > 1 && strncmp (arg, "-1", length) == 0)) |
7f19b9a2 | 72 | return AUTO_BOOLEAN_AUTO; |
d318976c | 73 | } |
8a3fe4f8 | 74 | error (_("\"on\", \"off\" or \"auto\" expected.")); |
ebcd3b23 | 75 | return AUTO_BOOLEAN_AUTO; /* Pacify GCC. */ |
d318976c FN |
76 | } |
77 | ||
bd712aed DE |
78 | /* See cli-setshow.h. */ |
79 | ||
80 | int | |
9d0faba9 | 81 | parse_cli_boolean_value (const char **arg) |
d318976c | 82 | { |
9d0faba9 PA |
83 | const char *p = skip_to_space (*arg); |
84 | size_t length = p - *arg; | |
d318976c | 85 | |
9d0faba9 | 86 | /* Note that "o" is ambiguous. */ |
d318976c | 87 | |
9d0faba9 PA |
88 | if ((length == 2 && strncmp (*arg, "on", length) == 0) |
89 | || strncmp (*arg, "1", length) == 0 | |
90 | || strncmp (*arg, "yes", length) == 0 | |
91 | || strncmp (*arg, "enable", length) == 0) | |
92 | { | |
93 | *arg = skip_spaces (*arg + length); | |
94 | return 1; | |
95 | } | |
96 | else if ((length >= 2 && strncmp (*arg, "off", length) == 0) | |
97 | || strncmp (*arg, "0", length) == 0 | |
98 | || strncmp (*arg, "no", length) == 0 | |
99 | || strncmp (*arg, "disable", length) == 0) | |
100 | { | |
101 | *arg = skip_spaces (*arg + length); | |
102 | return 0; | |
103 | } | |
104 | else | |
105 | return -1; | |
106 | } | |
d318976c | 107 | |
9d0faba9 | 108 | /* See cli-setshow.h. */ |
dee7b4c8 | 109 | |
9d0faba9 PA |
110 | int |
111 | parse_cli_boolean_value (const char *arg) | |
112 | { | |
113 | if (!arg || !*arg) | |
d318976c | 114 | return 1; |
9d0faba9 PA |
115 | |
116 | int b = parse_cli_boolean_value (&arg); | |
117 | if (b >= 0 && *arg != '\0') | |
bd712aed | 118 | return -1; |
9d0faba9 PA |
119 | |
120 | return b; | |
d318976c | 121 | } |
9d0faba9 | 122 | |
d318976c | 123 | \f |
08546159 AC |
124 | void |
125 | deprecated_show_value_hack (struct ui_file *ignore_file, | |
126 | int ignore_from_tty, | |
127 | struct cmd_list_element *c, | |
128 | const char *value) | |
129 | { | |
4d28ad1e AC |
130 | /* If there's no command or value, don't try to print it out. */ |
131 | if (c == NULL || value == NULL) | |
132 | return; | |
08546159 AC |
133 | /* Print doc minus "show" at start. */ |
134 | print_doc_line (gdb_stdout, c->doc + 5); | |
135 | switch (c->var_type) | |
136 | { | |
137 | case var_string: | |
138 | case var_string_noescape: | |
b4b4ac0b | 139 | case var_optional_filename: |
08546159 AC |
140 | case var_filename: |
141 | case var_enum: | |
142 | printf_filtered ((" is \"%s\".\n"), value); | |
143 | break; | |
144 | default: | |
145 | printf_filtered ((" is %s.\n"), value); | |
146 | break; | |
147 | } | |
148 | } | |
149 | ||
f81d1120 PA |
150 | /* Returns true if ARG is "unlimited". */ |
151 | ||
9d0faba9 | 152 | static bool |
4c048731 | 153 | is_unlimited_literal (const char **arg, bool expression) |
f81d1120 | 154 | { |
9d0faba9 | 155 | *arg = skip_spaces (*arg); |
f81d1120 | 156 | |
4c048731 PA |
157 | const char *unl_start = *arg; |
158 | ||
9d0faba9 | 159 | const char *p = skip_to_space (*arg); |
93bcb043 | 160 | |
9d0faba9 | 161 | size_t len = p - *arg; |
93bcb043 | 162 | |
9d0faba9 PA |
163 | if (len > 0 && strncmp ("unlimited", *arg, len) == 0) |
164 | { | |
165 | *arg += len; | |
4c048731 PA |
166 | |
167 | /* If parsing an expression (i.e., parsing for a "set" command), | |
168 | anything after "unlimited" is junk. For options, anything | |
169 | after "unlimited" might be a command argument or another | |
170 | option. */ | |
171 | if (expression) | |
172 | { | |
173 | const char *after = skip_spaces (*arg); | |
174 | if (*after != '\0') | |
175 | error (_("Junk after \"%.*s\": %s"), | |
176 | (int) len, unl_start, after); | |
177 | } | |
178 | ||
9d0faba9 PA |
179 | return true; |
180 | } | |
93bcb043 PA |
181 | |
182 | return false; | |
f81d1120 PA |
183 | } |
184 | ||
9d0faba9 PA |
185 | /* See cli-setshow.h. */ |
186 | ||
187 | unsigned int | |
188 | parse_cli_var_uinteger (var_types var_type, const char **arg, | |
189 | bool expression) | |
190 | { | |
191 | LONGEST val; | |
192 | ||
fdbc9870 | 193 | if (*arg == nullptr || **arg == '\0') |
9d0faba9 PA |
194 | { |
195 | if (var_type == var_uinteger) | |
196 | error_no_arg (_("integer to set it to, or \"unlimited\".")); | |
197 | else | |
198 | error_no_arg (_("integer to set it to.")); | |
199 | } | |
200 | ||
4c048731 | 201 | if (var_type == var_uinteger && is_unlimited_literal (arg, expression)) |
9d0faba9 PA |
202 | val = 0; |
203 | else if (expression) | |
204 | val = parse_and_eval_long (*arg); | |
205 | else | |
206 | val = get_ulongest (arg); | |
207 | ||
208 | if (var_type == var_uinteger && val == 0) | |
209 | val = UINT_MAX; | |
210 | else if (val < 0 | |
211 | /* For var_uinteger, don't let the user set the value | |
212 | to UINT_MAX directly, as that exposes an | |
213 | implementation detail to the user interface. */ | |
214 | || (var_type == var_uinteger && val >= UINT_MAX) | |
215 | || (var_type == var_zuinteger && val > UINT_MAX)) | |
216 | error (_("integer %s out of range"), plongest (val)); | |
217 | ||
218 | return val; | |
219 | } | |
220 | ||
221 | /* See cli-setshow.h. */ | |
222 | ||
223 | int | |
224 | parse_cli_var_zuinteger_unlimited (const char **arg, bool expression) | |
225 | { | |
226 | LONGEST val; | |
227 | ||
fdbc9870 | 228 | if (*arg == nullptr || **arg == '\0') |
9d0faba9 PA |
229 | error_no_arg (_("integer to set it to, or \"unlimited\".")); |
230 | ||
4c048731 | 231 | if (is_unlimited_literal (arg, expression)) |
9d0faba9 PA |
232 | val = -1; |
233 | else if (expression) | |
234 | val = parse_and_eval_long (*arg); | |
235 | else | |
236 | val = get_ulongest (arg); | |
237 | ||
238 | if (val > INT_MAX) | |
239 | error (_("integer %s out of range"), plongest (val)); | |
240 | else if (val < -1) | |
241 | error (_("only -1 is allowed to set as unlimited")); | |
242 | ||
243 | return val; | |
244 | } | |
245 | ||
246 | /* See cli-setshow.h. */ | |
247 | ||
248 | const char * | |
249 | parse_cli_var_enum (const char **args, const char *const *enums) | |
250 | { | |
251 | /* If no argument was supplied, print an informative error | |
252 | message. */ | |
253 | if (args == NULL || *args == NULL || **args == '\0') | |
254 | { | |
255 | std::string msg; | |
256 | ||
257 | for (size_t i = 0; enums[i]; i++) | |
258 | { | |
259 | if (i != 0) | |
260 | msg += ", "; | |
261 | msg += enums[i]; | |
262 | } | |
263 | error (_("Requires an argument. Valid arguments are %s."), | |
264 | msg.c_str ()); | |
265 | } | |
266 | ||
267 | const char *p = skip_to_space (*args); | |
268 | size_t len = p - *args; | |
269 | ||
270 | int nmatches = 0; | |
271 | const char *match = NULL; | |
272 | for (size_t i = 0; enums[i]; i++) | |
273 | if (strncmp (*args, enums[i], len) == 0) | |
274 | { | |
275 | if (enums[i][len] == '\0') | |
276 | { | |
277 | match = enums[i]; | |
278 | nmatches = 1; | |
279 | break; /* Exact match. */ | |
280 | } | |
281 | else | |
282 | { | |
283 | match = enums[i]; | |
284 | nmatches++; | |
285 | } | |
286 | } | |
287 | ||
288 | if (nmatches == 0) | |
289 | error (_("Undefined item: \"%.*s\"."), (int) len, *args); | |
290 | ||
291 | if (nmatches > 1) | |
292 | error (_("Ambiguous item \"%.*s\"."), (int) len, *args); | |
293 | ||
294 | *args += len; | |
295 | return match; | |
296 | } | |
f81d1120 | 297 | |
5b9afe8a | 298 | /* Do a "set" command. ARG is NULL if no argument, or the |
ebcd3b23 MS |
299 | text of the argument, and FROM_TTY is nonzero if this command is |
300 | being entered directly by the user (i.e. these are just like any | |
301 | other command). C is the command list element for the command. */ | |
d318976c FN |
302 | |
303 | void | |
06900326 | 304 | do_set_command (const char *arg, int from_tty, struct cmd_list_element *c) |
d318976c | 305 | { |
5b9afe8a YQ |
306 | /* A flag to indicate the option is changed or not. */ |
307 | int option_changed = 0; | |
308 | ||
309 | gdb_assert (c->type == set_cmd); | |
79a45e25 | 310 | |
fdbc9870 PA |
311 | if (arg == NULL) |
312 | arg = ""; | |
313 | ||
5b9afe8a | 314 | switch (c->var_type) |
d318976c | 315 | { |
5b9afe8a YQ |
316 | case var_string: |
317 | { | |
fe978cb0 | 318 | char *newobj; |
d7561cbb | 319 | const char *p; |
5b9afe8a YQ |
320 | char *q; |
321 | int ch; | |
322 | ||
fe978cb0 | 323 | newobj = (char *) xmalloc (strlen (arg) + 2); |
5b9afe8a | 324 | p = arg; |
fe978cb0 | 325 | q = newobj; |
5b9afe8a | 326 | while ((ch = *p++) != '\000') |
d318976c | 327 | { |
5b9afe8a | 328 | if (ch == '\\') |
d318976c | 329 | { |
5b9afe8a YQ |
330 | /* \ at end of argument is used after spaces |
331 | so they won't be lost. */ | |
332 | /* This is obsolete now that we no longer strip | |
333 | trailing whitespace and actually, the backslash | |
334 | didn't get here in my test, readline or | |
335 | something did something funky with a backslash | |
336 | right before a newline. */ | |
337 | if (*p == 0) | |
338 | break; | |
339 | ch = parse_escape (get_current_arch (), &p); | |
340 | if (ch == 0) | |
341 | break; /* C loses */ | |
342 | else if (ch > 0) | |
d318976c FN |
343 | *q++ = ch; |
344 | } | |
5b9afe8a YQ |
345 | else |
346 | *q++ = ch; | |
347 | } | |
d318976c | 348 | #if 0 |
5b9afe8a YQ |
349 | if (*(p - 1) != '\\') |
350 | *q++ = ' '; | |
d318976c | 351 | #endif |
5b9afe8a | 352 | *q++ = '\0'; |
fe978cb0 | 353 | newobj = (char *) xrealloc (newobj, q - newobj); |
5b9afe8a YQ |
354 | |
355 | if (*(char **) c->var == NULL | |
fe978cb0 | 356 | || strcmp (*(char **) c->var, newobj) != 0) |
5b9afe8a | 357 | { |
c24343e2 | 358 | xfree (*(char **) c->var); |
fe978cb0 | 359 | *(char **) c->var = newobj; |
5b9afe8a YQ |
360 | |
361 | option_changed = 1; | |
d318976c | 362 | } |
5b9afe8a | 363 | else |
fe978cb0 | 364 | xfree (newobj); |
5b9afe8a YQ |
365 | } |
366 | break; | |
367 | case var_string_noescape: | |
5b9afe8a YQ |
368 | if (*(char **) c->var == NULL || strcmp (*(char **) c->var, arg) != 0) |
369 | { | |
c24343e2 | 370 | xfree (*(char **) c->var); |
1b36a34b | 371 | *(char **) c->var = xstrdup (arg); |
cdb27c12 | 372 | |
5b9afe8a YQ |
373 | option_changed = 1; |
374 | } | |
375 | break; | |
376 | case var_filename: | |
fdbc9870 | 377 | if (*arg == '\0') |
5b9afe8a YQ |
378 | error_no_arg (_("filename to set it to.")); |
379 | /* FALLTHROUGH */ | |
380 | case var_optional_filename: | |
381 | { | |
382 | char *val = NULL; | |
6ace3df1 | 383 | |
fdbc9870 | 384 | if (*arg != '\0') |
5b9afe8a YQ |
385 | { |
386 | /* Clear trailing whitespace of filename. */ | |
06900326 TT |
387 | const char *ptr = arg + strlen (arg) - 1; |
388 | char *copy; | |
6ace3df1 | 389 | |
5b9afe8a YQ |
390 | while (ptr >= arg && (*ptr == ' ' || *ptr == '\t')) |
391 | ptr--; | |
06900326 | 392 | copy = xstrndup (arg, ptr + 1 - arg); |
5b9afe8a | 393 | |
06900326 TT |
394 | val = tilde_expand (copy); |
395 | xfree (copy); | |
5b9afe8a YQ |
396 | } |
397 | else | |
398 | val = xstrdup (""); | |
399 | ||
400 | if (*(char **) c->var == NULL | |
401 | || strcmp (*(char **) c->var, val) != 0) | |
d318976c | 402 | { |
5b9afe8a YQ |
403 | xfree (*(char **) c->var); |
404 | *(char **) c->var = val; | |
405 | ||
406 | option_changed = 1; | |
d318976c | 407 | } |
5b9afe8a YQ |
408 | else |
409 | xfree (val); | |
410 | } | |
411 | break; | |
412 | case var_boolean: | |
413 | { | |
bd712aed | 414 | int val = parse_cli_boolean_value (arg); |
5b9afe8a | 415 | |
bd712aed DE |
416 | if (val < 0) |
417 | error (_("\"on\" or \"off\" expected.")); | |
5b9afe8a YQ |
418 | if (val != *(int *) c->var) |
419 | { | |
420 | *(int *) c->var = val; | |
421 | ||
422 | option_changed = 1; | |
423 | } | |
424 | } | |
425 | break; | |
426 | case var_auto_boolean: | |
427 | { | |
428 | enum auto_boolean val = parse_auto_binary_operation (arg); | |
429 | ||
430 | if (*(enum auto_boolean *) c->var != val) | |
431 | { | |
432 | *(enum auto_boolean *) c->var = val; | |
433 | ||
434 | option_changed = 1; | |
435 | } | |
436 | } | |
437 | break; | |
438 | case var_uinteger: | |
439 | case var_zuinteger: | |
5b9afe8a | 440 | { |
9d0faba9 | 441 | unsigned int val = parse_cli_var_uinteger (c->var_type, &arg, true); |
5b9afe8a YQ |
442 | |
443 | if (*(unsigned int *) c->var != val) | |
444 | { | |
445 | *(unsigned int *) c->var = val; | |
446 | ||
447 | option_changed = 1; | |
448 | } | |
449 | } | |
450 | break; | |
451 | case var_integer: | |
452 | case var_zinteger: | |
453 | { | |
ef0026f0 | 454 | LONGEST val; |
5b9afe8a | 455 | |
fdbc9870 | 456 | if (*arg == '\0') |
f81d1120 PA |
457 | { |
458 | if (c->var_type == var_integer) | |
459 | error_no_arg (_("integer to set it to, or \"unlimited\".")); | |
460 | else | |
461 | error_no_arg (_("integer to set it to.")); | |
462 | } | |
463 | ||
4c048731 | 464 | if (c->var_type == var_integer && is_unlimited_literal (&arg, true)) |
f81d1120 PA |
465 | val = 0; |
466 | else | |
467 | val = parse_and_eval_long (arg); | |
ef0026f0 | 468 | |
5b9afe8a YQ |
469 | if (val == 0 && c->var_type == var_integer) |
470 | val = INT_MAX; | |
82b821e9 PA |
471 | else if (val < INT_MIN |
472 | /* For var_integer, don't let the user set the value | |
473 | to INT_MAX directly, as that exposes an | |
474 | implementation detail to the user interface. */ | |
475 | || (c->var_type == var_integer && val >= INT_MAX) | |
476 | || (c->var_type == var_zinteger && val > INT_MAX)) | |
ef0026f0 | 477 | error (_("integer %s out of range"), plongest (val)); |
5b9afe8a YQ |
478 | |
479 | if (*(int *) c->var != val) | |
d318976c | 480 | { |
5b9afe8a YQ |
481 | *(int *) c->var = val; |
482 | ||
483 | option_changed = 1; | |
484 | } | |
485 | break; | |
486 | } | |
487 | case var_enum: | |
488 | { | |
9d0faba9 PA |
489 | const char *end_arg = arg; |
490 | const char *match = parse_cli_var_enum (&end_arg, c->enums); | |
5b9afe8a | 491 | |
9d0faba9 PA |
492 | int len = end_arg - arg; |
493 | const char *after = skip_spaces (end_arg); | |
48c410fb PA |
494 | if (*after != '\0') |
495 | error (_("Junk after item \"%.*s\": %s"), len, arg, after); | |
496 | ||
5b9afe8a YQ |
497 | if (*(const char **) c->var != match) |
498 | { | |
d318976c | 499 | *(const char **) c->var = match; |
5b9afe8a YQ |
500 | |
501 | option_changed = 1; | |
d318976c | 502 | } |
5b9afe8a YQ |
503 | } |
504 | break; | |
6fc1c773 YQ |
505 | case var_zuinteger_unlimited: |
506 | { | |
9d0faba9 | 507 | int val = parse_cli_var_zuinteger_unlimited (&arg, true); |
6fc1c773 YQ |
508 | |
509 | if (*(int *) c->var != val) | |
510 | { | |
511 | *(int *) c->var = val; | |
512 | option_changed = 1; | |
513 | } | |
514 | } | |
515 | break; | |
5b9afe8a YQ |
516 | default: |
517 | error (_("gdb internal error: bad var_type in do_setshow_command")); | |
d318976c | 518 | } |
5b9afe8a | 519 | c->func (c, NULL, from_tty); |
5b9afe8a YQ |
520 | |
521 | if (notify_command_param_changed_p (option_changed, c)) | |
d318976c | 522 | { |
5b9afe8a YQ |
523 | char *name, *cp; |
524 | struct cmd_list_element **cmds; | |
525 | struct cmd_list_element *p; | |
526 | int i; | |
527 | int length = 0; | |
528 | ||
529 | /* Compute the whole multi-word command options. If user types command | |
530 | 'set foo bar baz on', c->name is 'baz', and GDB can't pass "bar" to | |
531 | command option change notification, because it is confusing. We can | |
532 | trace back through field 'prefix' to compute the whole options, | |
533 | and pass "foo bar baz" to notification. */ | |
534 | ||
535 | for (i = 0, p = c; p != NULL; i++) | |
536 | { | |
537 | length += strlen (p->name); | |
538 | length++; | |
539 | ||
540 | p = p->prefix; | |
541 | } | |
8d749320 SM |
542 | cp = name = (char *) xmalloc (length); |
543 | cmds = XNEWVEC (struct cmd_list_element *, i); | |
5b9afe8a YQ |
544 | |
545 | /* Track back through filed 'prefix' and cache them in CMDS. */ | |
546 | for (i = 0, p = c; p != NULL; i++) | |
547 | { | |
548 | cmds[i] = p; | |
549 | p = p->prefix; | |
550 | } | |
551 | ||
552 | /* Don't trigger any observer notification if prefixlist is not | |
553 | setlist. */ | |
554 | i--; | |
555 | if (cmds[i]->prefixlist != &setlist) | |
556 | { | |
557 | xfree (cmds); | |
558 | xfree (name); | |
559 | ||
560 | return; | |
561 | } | |
562 | /* Traverse them in the reversed order, and copy their names into | |
563 | NAME. */ | |
564 | for (i--; i >= 0; i--) | |
565 | { | |
566 | memcpy (cp, cmds[i]->name, strlen (cmds[i]->name)); | |
567 | cp += strlen (cmds[i]->name); | |
d318976c | 568 | |
5b9afe8a YQ |
569 | if (i != 0) |
570 | { | |
571 | cp[0] = ' '; | |
572 | cp++; | |
573 | } | |
574 | } | |
575 | cp[0] = 0; | |
d318976c | 576 | |
5b9afe8a | 577 | xfree (cmds); |
552c04a7 | 578 | |
d318976c FN |
579 | switch (c->var_type) |
580 | { | |
581 | case var_string: | |
d318976c FN |
582 | case var_string_noescape: |
583 | case var_filename: | |
5b9afe8a | 584 | case var_optional_filename: |
d318976c | 585 | case var_enum: |
76727919 | 586 | gdb::observers::command_param_changed.notify (name, *(char **) c->var); |
d318976c FN |
587 | break; |
588 | case var_boolean: | |
5b9afe8a | 589 | { |
e6a959d6 | 590 | const char *opt = *(int *) c->var ? "on" : "off"; |
5b9afe8a | 591 | |
76727919 | 592 | gdb::observers::command_param_changed.notify (name, opt); |
5b9afe8a | 593 | } |
d318976c FN |
594 | break; |
595 | case var_auto_boolean: | |
5b9afe8a YQ |
596 | { |
597 | const char *s = auto_boolean_enums[*(enum auto_boolean *) c->var]; | |
598 | ||
76727919 | 599 | gdb::observers::command_param_changed.notify (name, s); |
5b9afe8a | 600 | } |
d318976c FN |
601 | break; |
602 | case var_uinteger: | |
1e8fb976 | 603 | case var_zuinteger: |
5b9afe8a YQ |
604 | { |
605 | char s[64]; | |
606 | ||
607 | xsnprintf (s, sizeof s, "%u", *(unsigned int *) c->var); | |
76727919 | 608 | gdb::observers::command_param_changed.notify (name, s); |
5b9afe8a | 609 | } |
d318976c FN |
610 | break; |
611 | case var_integer: | |
a40a111f | 612 | case var_zinteger: |
6fc1c773 | 613 | case var_zuinteger_unlimited: |
5b9afe8a YQ |
614 | { |
615 | char s[64]; | |
d318976c | 616 | |
5b9afe8a | 617 | xsnprintf (s, sizeof s, "%d", *(int *) c->var); |
76727919 | 618 | gdb::observers::command_param_changed.notify (name, s); |
5b9afe8a YQ |
619 | } |
620 | break; | |
d318976c | 621 | } |
5b9afe8a YQ |
622 | xfree (name); |
623 | } | |
624 | } | |
899506a8 | 625 | |
fdbc9870 | 626 | /* See cli/cli-setshow.h. */ |
899506a8 | 627 | |
fdbc9870 PA |
628 | std::string |
629 | get_setshow_command_value_string (cmd_list_element *c) | |
5b9afe8a | 630 | { |
d7e74731 | 631 | string_file stb; |
cdb27c12 | 632 | |
5b9afe8a YQ |
633 | switch (c->var_type) |
634 | { | |
635 | case var_string: | |
636 | if (*(char **) c->var) | |
d7e74731 | 637 | stb.putstr (*(char **) c->var, '"'); |
5b9afe8a YQ |
638 | break; |
639 | case var_string_noescape: | |
640 | case var_optional_filename: | |
641 | case var_filename: | |
642 | case var_enum: | |
643 | if (*(char **) c->var) | |
d7e74731 | 644 | stb.puts (*(char **) c->var); |
5b9afe8a YQ |
645 | break; |
646 | case var_boolean: | |
d7e74731 | 647 | stb.puts (*(int *) c->var ? "on" : "off"); |
5b9afe8a YQ |
648 | break; |
649 | case var_auto_boolean: | |
650 | switch (*(enum auto_boolean*) c->var) | |
651 | { | |
652 | case AUTO_BOOLEAN_TRUE: | |
d7e74731 | 653 | stb.puts ("on"); |
5b9afe8a YQ |
654 | break; |
655 | case AUTO_BOOLEAN_FALSE: | |
d7e74731 | 656 | stb.puts ("off"); |
5b9afe8a YQ |
657 | break; |
658 | case AUTO_BOOLEAN_AUTO: | |
d7e74731 | 659 | stb.puts ("auto"); |
5b9afe8a YQ |
660 | break; |
661 | default: | |
fdbc9870 | 662 | gdb_assert_not_reached ("invalid var_auto_boolean"); |
5b9afe8a | 663 | break; |
899506a8 | 664 | } |
5b9afe8a YQ |
665 | break; |
666 | case var_uinteger: | |
667 | case var_zuinteger: | |
668 | if (c->var_type == var_uinteger | |
669 | && *(unsigned int *) c->var == UINT_MAX) | |
d7e74731 | 670 | stb.puts ("unlimited"); |
5b9afe8a | 671 | else |
d7e74731 | 672 | stb.printf ("%u", *(unsigned int *) c->var); |
5b9afe8a YQ |
673 | break; |
674 | case var_integer: | |
675 | case var_zinteger: | |
676 | if (c->var_type == var_integer | |
677 | && *(int *) c->var == INT_MAX) | |
d7e74731 | 678 | stb.puts ("unlimited"); |
5b9afe8a | 679 | else |
d7e74731 | 680 | stb.printf ("%d", *(int *) c->var); |
5b9afe8a | 681 | break; |
6fc1c773 YQ |
682 | case var_zuinteger_unlimited: |
683 | { | |
684 | if (*(int *) c->var == -1) | |
d7e74731 | 685 | stb.puts ("unlimited"); |
6fc1c773 | 686 | else |
d7e74731 | 687 | stb.printf ("%d", *(int *) c->var); |
6fc1c773 YQ |
688 | } |
689 | break; | |
5b9afe8a | 690 | default: |
fdbc9870 | 691 | gdb_assert_not_reached ("bad var_type"); |
d318976c | 692 | } |
5b9afe8a | 693 | |
fdbc9870 PA |
694 | return std::move (stb.string ()); |
695 | } | |
696 | ||
697 | ||
698 | /* Do a "show" command. ARG is NULL if no argument, or the | |
699 | text of the argument, and FROM_TTY is nonzero if this command is | |
700 | being entered directly by the user (i.e. these are just like any | |
701 | other command). C is the command list element for the command. */ | |
702 | ||
703 | void | |
704 | do_show_command (const char *arg, int from_tty, struct cmd_list_element *c) | |
705 | { | |
706 | struct ui_out *uiout = current_uiout; | |
707 | ||
708 | gdb_assert (c->type == show_cmd); | |
709 | ||
710 | /* Possibly call the pre hook. */ | |
711 | if (c->pre_show_hook) | |
712 | (c->pre_show_hook) (c); | |
713 | ||
714 | std::string val = get_setshow_command_value_string (c); | |
5b9afe8a | 715 | |
fdbc9870 PA |
716 | /* FIXME: cagney/2005-02-10: There should be MI and CLI specific |
717 | versions of code to print the value out. */ | |
5b9afe8a | 718 | |
112e8700 | 719 | if (uiout->is_mi_like_p ()) |
fdbc9870 | 720 | uiout->field_string ("value", val.c_str ()); |
d318976c | 721 | else |
5b9afe8a | 722 | { |
5b9afe8a | 723 | if (c->show_value_func != NULL) |
fdbc9870 | 724 | c->show_value_func (gdb_stdout, from_tty, c, val.c_str ()); |
5b9afe8a | 725 | else |
fdbc9870 | 726 | deprecated_show_value_hack (gdb_stdout, from_tty, c, val.c_str ()); |
5b9afe8a | 727 | } |
5b9afe8a | 728 | |
9f60d481 | 729 | c->func (c, NULL, from_tty); |
d318976c FN |
730 | } |
731 | ||
732 | /* Show all the settings in a list of show commands. */ | |
733 | ||
734 | void | |
64e61d29 | 735 | cmd_show_list (struct cmd_list_element *list, int from_tty, const char *prefix) |
d318976c | 736 | { |
79a45e25 | 737 | struct ui_out *uiout = current_uiout; |
3b31d625 | 738 | |
2e783024 | 739 | ui_out_emit_tuple tuple_emitter (uiout, "showlist"); |
d318976c FN |
740 | for (; list != NULL; list = list->next) |
741 | { | |
742 | /* If we find a prefix, run its list, prefixing our output by its | |
743 | prefix (with "show " skipped). */ | |
d318976c FN |
744 | if (list->prefixlist && !list->abbrev_flag) |
745 | { | |
2e783024 | 746 | ui_out_emit_tuple optionlist_emitter (uiout, "optionlist"); |
acaa662f | 747 | const char *new_prefix = strstr (list->prefixname, "show ") + 5; |
cdb27c12 | 748 | |
112e8700 SM |
749 | if (uiout->is_mi_like_p ()) |
750 | uiout->field_string ("prefix", new_prefix); | |
37fc812e | 751 | cmd_show_list (*list->prefixlist, from_tty, new_prefix); |
d318976c | 752 | } |
427c3a89 | 753 | else |
d318976c | 754 | { |
fe978cb0 | 755 | if (list->theclass != no_set_class) |
db5f229b | 756 | { |
2e783024 | 757 | ui_out_emit_tuple option_emitter (uiout, "option"); |
db5f229b | 758 | |
112e8700 SM |
759 | uiout->text (prefix); |
760 | uiout->field_string ("name", list->name); | |
761 | uiout->text (": "); | |
db5f229b | 762 | if (list->type == show_cmd) |
cafb3438 | 763 | do_show_command (NULL, from_tty, list); |
db5f229b MS |
764 | else |
765 | cmd_func (list, NULL, from_tty); | |
db5f229b | 766 | } |
d318976c | 767 | } |
d318976c | 768 | } |
d318976c FN |
769 | } |
770 |