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xtensa: support DMA buffers in high memory
[cris-mirror.git] / scripts / kconfig / menu.c
blob99222855544c3a7c2f67b3c33b3796eb36e5ff80
1 /*
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
4 */
5
6 #include <ctype.h>
7 #include <stdarg.h>
8 #include <stdlib.h>
9 #include <string.h>
10
11 #include "lkc.h"
12
13 static const char nohelp_text[] = "There is no help available for this option.";
14
15 struct menu rootmenu;
16 static struct menu **last_entry_ptr;
17
18 struct file *file_list;
19 struct file *current_file;
20
21 void menu_warn(struct menu *menu, const char *fmt, ...)
22 {
23 va_list ap;
24 va_start(ap, fmt);
25 fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno);
26 vfprintf(stderr, fmt, ap);
27 fprintf(stderr, "\n");
28 va_end(ap);
29 }
30
31 static void prop_warn(struct property *prop, const char *fmt, ...)
32 {
33 va_list ap;
34 va_start(ap, fmt);
35 fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno);
36 vfprintf(stderr, fmt, ap);
37 fprintf(stderr, "\n");
38 va_end(ap);
39 }
40
41 void _menu_init(void)
42 {
43 current_entry = current_menu = &rootmenu;
44 last_entry_ptr = &rootmenu.list;
45 }
46
47 void menu_add_entry(struct symbol *sym)
48 {
49 struct menu *menu;
50
51 menu = xmalloc(sizeof(*menu));
52 memset(menu, 0, sizeof(*menu));
53 menu->sym = sym;
54 menu->parent = current_menu;
55 menu->file = current_file;
56 menu->lineno = zconf_lineno();
57
58 *last_entry_ptr = menu;
59 last_entry_ptr = &menu->next;
60 current_entry = menu;
61 if (sym)
62 menu_add_symbol(P_SYMBOL, sym, NULL);
63 }
64
65 struct menu *menu_add_menu(void)
66 {
67 last_entry_ptr = &current_entry->list;
68 return current_menu = current_entry;
69 }
70
71 void menu_end_menu(void)
72 {
73 last_entry_ptr = &current_menu->next;
74 current_menu = current_menu->parent;
75 }
76
77 /*
78 * Rewrites 'm' to 'm' && MODULES, so that it evaluates to 'n' when running
79 * without modules
80 */
81 static struct expr *rewrite_m(struct expr *e)
82 {
83 if (!e)
84 return e;
85
86 switch (e->type) {
87 case E_NOT:
88 e->left.expr = rewrite_m(e->left.expr);
89 break;
90 case E_OR:
91 case E_AND:
92 e->left.expr = rewrite_m(e->left.expr);
93 e->right.expr = rewrite_m(e->right.expr);
94 break;
95 case E_SYMBOL:
96 /* change 'm' into 'm' && MODULES */
97 if (e->left.sym == &symbol_mod)
98 return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
99 break;
100 default:
101 break;
102 }
103 return e;
104 }
105
106 void menu_add_dep(struct expr *dep)
107 {
108 current_entry->dep = expr_alloc_and(current_entry->dep, dep);
109 }
110
111 void menu_set_type(int type)
112 {
113 struct symbol *sym = current_entry->sym;
114
115 if (sym->type == type)
116 return;
117 if (sym->type == S_UNKNOWN) {
118 sym->type = type;
119 return;
120 }
121 menu_warn(current_entry,
122 "ignoring type redefinition of '%s' from '%s' to '%s'",
123 sym->name ? sym->name : "<choice>",
124 sym_type_name(sym->type), sym_type_name(type));
125 }
126
127 static struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
128 {
129 struct property *prop = prop_alloc(type, current_entry->sym);
130
131 prop->menu = current_entry;
132 prop->expr = expr;
133 prop->visible.expr = dep;
134
135 if (prompt) {
136 if (isspace(*prompt)) {
137 prop_warn(prop, "leading whitespace ignored");
138 while (isspace(*prompt))
139 prompt++;
140 }
141 if (current_entry->prompt && current_entry != &rootmenu)
142 prop_warn(prop, "prompt redefined");
143
144 /* Apply all upper menus' visibilities to actual prompts. */
145 if(type == P_PROMPT) {
146 struct menu *menu = current_entry;
147
148 while ((menu = menu->parent) != NULL) {
149 struct expr *dup_expr;
150
151 if (!menu->visibility)
152 continue;
153 /*
154 * Do not add a reference to the
155 * menu's visibility expression but
156 * use a copy of it. Otherwise the
157 * expression reduction functions
158 * will modify expressions that have
159 * multiple references which can
160 * cause unwanted side effects.
161 */
162 dup_expr = expr_copy(menu->visibility);
163
164 prop->visible.expr
165 = expr_alloc_and(prop->visible.expr,
166 dup_expr);
167 }
168 }
169
170 current_entry->prompt = prop;
171 }
172 prop->text = prompt;
173
174 return prop;
175 }
176
177 struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
178 {
179 return menu_add_prop(type, prompt, NULL, dep);
180 }
181
182 void menu_add_visibility(struct expr *expr)
183 {
184 current_entry->visibility = expr_alloc_and(current_entry->visibility,
185 expr);
186 }
187
188 void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
189 {
190 menu_add_prop(type, NULL, expr, dep);
191 }
192
193 void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
194 {
195 menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
196 }
197
198 void menu_add_option(int token, char *arg)
199 {
200 switch (token) {
201 case T_OPT_MODULES:
202 if (modules_sym)
203 zconf_error("symbol '%s' redefines option 'modules'"
204 " already defined by symbol '%s'",
205 current_entry->sym->name,
206 modules_sym->name
207 );
208 modules_sym = current_entry->sym;
209 break;
210 case T_OPT_DEFCONFIG_LIST:
211 if (!sym_defconfig_list)
212 sym_defconfig_list = current_entry->sym;
213 else if (sym_defconfig_list != current_entry->sym)
214 zconf_error("trying to redefine defconfig symbol");
215 break;
216 case T_OPT_ENV:
217 prop_add_env(arg);
218 break;
219 case T_OPT_ALLNOCONFIG_Y:
220 current_entry->sym->flags |= SYMBOL_ALLNOCONFIG_Y;
221 break;
222 }
223 }
224
225 static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
226 {
227 return sym2->type == S_INT || sym2->type == S_HEX ||
228 (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
229 }
230
231 static void sym_check_prop(struct symbol *sym)
232 {
233 struct property *prop;
234 struct symbol *sym2;
235 char *use;
236
237 for (prop = sym->prop; prop; prop = prop->next) {
238 switch (prop->type) {
239 case P_DEFAULT:
240 if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
241 prop->expr->type != E_SYMBOL)
242 prop_warn(prop,
243 "default for config symbol '%s'"
244 " must be a single symbol", sym->name);
245 if (prop->expr->type != E_SYMBOL)
246 break;
247 sym2 = prop_get_symbol(prop);
248 if (sym->type == S_HEX || sym->type == S_INT) {
249 if (!menu_validate_number(sym, sym2))
250 prop_warn(prop,
251 "'%s': number is invalid",
252 sym->name);
253 }
254 if (sym_is_choice(sym)) {
255 struct property *choice_prop =
256 sym_get_choice_prop(sym2);
257
258 if (!choice_prop ||
259 prop_get_symbol(choice_prop) != sym)
260 prop_warn(prop,
261 "choice default symbol '%s' is not contained in the choice",
262 sym2->name);
263 }
264 break;
265 case P_SELECT:
266 case P_IMPLY:
267 use = prop->type == P_SELECT ? "select" : "imply";
268 sym2 = prop_get_symbol(prop);
269 if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
270 prop_warn(prop,
271 "config symbol '%s' uses %s, but is "
272 "not bool or tristate", sym->name, use);
273 else if (sym2->type != S_UNKNOWN &&
274 sym2->type != S_BOOLEAN &&
275 sym2->type != S_TRISTATE)
276 prop_warn(prop,
277 "'%s' has wrong type. '%s' only "
278 "accept arguments of bool and "
279 "tristate type", sym2->name, use);
280 break;
281 case P_RANGE:
282 if (sym->type != S_INT && sym->type != S_HEX)
283 prop_warn(prop, "range is only allowed "
284 "for int or hex symbols");
285 if (!menu_validate_number(sym, prop->expr->left.sym) ||
286 !menu_validate_number(sym, prop->expr->right.sym))
287 prop_warn(prop, "range is invalid");
288 break;
289 default:
290 ;
291 }
292 }
293 }
294
295 void menu_finalize(struct menu *parent)
296 {
297 struct menu *menu, *last_menu;
298 struct symbol *sym;
299 struct property *prop;
300 struct expr *parentdep, *basedep, *dep, *dep2, **ep;
301
302 sym = parent->sym;
303 if (parent->list) {
304 /*
305 * This menu node has children. We (recursively) process them
306 * and propagate parent dependencies before moving on.
307 */
308
309 if (sym && sym_is_choice(sym)) {
310 if (sym->type == S_UNKNOWN) {
311 /* find the first choice value to find out choice type */
312 current_entry = parent;
313 for (menu = parent->list; menu; menu = menu->next) {
314 if (menu->sym && menu->sym->type != S_UNKNOWN) {
315 menu_set_type(menu->sym->type);
316 break;
317 }
318 }
319 }
320 /* set the type of the remaining choice values */
321 for (menu = parent->list; menu; menu = menu->next) {
322 current_entry = menu;
323 if (menu->sym && menu->sym->type == S_UNKNOWN)
324 menu_set_type(sym->type);
325 }
326
327 /*
328 * Use the choice itself as the parent dependency of
329 * the contained items. This turns the mode of the
330 * choice into an upper bound on the visibility of the
331 * choice value symbols.
332 */
333 parentdep = expr_alloc_symbol(sym);
334 } else if (parent->prompt)
335 /* Menu node for 'menu' */
336 parentdep = parent->prompt->visible.expr;
337 else
338 /* Menu node for 'if' */
339 parentdep = parent->dep;
340
341 /* For each child menu node... */
342 for (menu = parent->list; menu; menu = menu->next) {
343 /*
344 * Propagate parent dependencies to the child menu
345 * node, also rewriting and simplifying expressions
346 */
347 basedep = rewrite_m(menu->dep);
348 basedep = expr_transform(basedep);
349 basedep = expr_alloc_and(expr_copy(parentdep), basedep);
350 basedep = expr_eliminate_dups(basedep);
351 menu->dep = basedep;
352
353 if (menu->sym)
354 /*
355 * Note: For symbols, all prompts are included
356 * too in the symbol's own property list
357 */
358 prop = menu->sym->prop;
359 else
360 /*
361 * For non-symbol menu nodes, we just need to
362 * handle the prompt
363 */
364 prop = menu->prompt;
365
366 /* For each property... */
367 for (; prop; prop = prop->next) {
368 if (prop->menu != menu)
369 /*
370 * Two possibilities:
371 *
372 * 1. The property lacks dependencies
373 * and so isn't location-specific,
374 * e.g. an 'option'
375 *
376 * 2. The property belongs to a symbol
377 * defined in multiple locations and
378 * is from some other location. It
379 * will be handled there in that
380 * case.
381 *
382 * Skip the property.
383 */
384 continue;
385
386 /*
387 * Propagate parent dependencies to the
388 * property's condition, rewriting and
389 * simplifying expressions at the same time
390 */
391 dep = rewrite_m(prop->visible.expr);
392 dep = expr_transform(dep);
393 dep = expr_alloc_and(expr_copy(basedep), dep);
394 dep = expr_eliminate_dups(dep);
395 if (menu->sym && menu->sym->type != S_TRISTATE)
396 dep = expr_trans_bool(dep);
397 prop->visible.expr = dep;
398
399 /*
400 * Handle selects and implies, which modify the
401 * dependencies of the selected/implied symbol
402 */
403 if (prop->type == P_SELECT) {
404 struct symbol *es = prop_get_symbol(prop);
405 es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
406 expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
407 } else if (prop->type == P_IMPLY) {
408 struct symbol *es = prop_get_symbol(prop);
409 es->implied.expr = expr_alloc_or(es->implied.expr,
410 expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
411 }
412 }
413 }
414
415 if (sym && sym_is_choice(sym))
416 expr_free(parentdep);
417
418 /*
419 * Recursively process children in the same fashion before
420 * moving on
421 */
422 for (menu = parent->list; menu; menu = menu->next)
423 menu_finalize(menu);
424 } else if (sym) {
425 /*
426 * Automatic submenu creation. If sym is a symbol and A, B, C,
427 * ... are consecutive items (symbols, menus, ifs, etc.) that
428 * all depend on sym, then the following menu structure is
429 * created:
430 *
431 * sym
432 * +-A
433 * +-B
434 * +-C
435 * ...
436 *
437 * This also works recursively, giving the following structure
438 * if A is a symbol and B depends on A:
439 *
440 * sym
441 * +-A
442 * | +-B
443 * +-C
444 * ...
445 */
446
447 basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
448 basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
449 basedep = expr_eliminate_dups(expr_transform(basedep));
450
451 /* Examine consecutive elements after sym */
452 last_menu = NULL;
453 for (menu = parent->next; menu; menu = menu->next) {
454 dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
455 if (!expr_contains_symbol(dep, sym))
456 /* No dependency, quit */
457 break;
458 if (expr_depends_symbol(dep, sym))
459 /* Absolute dependency, put in submenu */
460 goto next;
461
462 /*
463 * Also consider it a dependency on sym if our
464 * dependencies contain sym and are a "superset" of
465 * sym's dependencies, e.g. '(sym || Q) && R' when sym
466 * depends on R.
467 *
468 * Note that 'R' might be from an enclosing menu or if,
469 * making this a more common case than it might seem.
470 */
471 dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
472 dep = expr_eliminate_dups(expr_transform(dep));
473 dep2 = expr_copy(basedep);
474 expr_eliminate_eq(&dep, &dep2);
475 expr_free(dep);
476 if (!expr_is_yes(dep2)) {
477 /* Not superset, quit */
478 expr_free(dep2);
479 break;
480 }
481 /* Superset, put in submenu */
482 expr_free(dep2);
483 next:
484 menu_finalize(menu);
485 menu->parent = parent;
486 last_menu = menu;
487 }
488 expr_free(basedep);
489 if (last_menu) {
490 parent->list = parent->next;
491 parent->next = last_menu->next;
492 last_menu->next = NULL;
493 }
494
495 sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
496 }
497 for (menu = parent->list; menu; menu = menu->next) {
498 if (sym && sym_is_choice(sym) &&
499 menu->sym && !sym_is_choice_value(menu->sym)) {
500 current_entry = menu;
501 menu->sym->flags |= SYMBOL_CHOICEVAL;
502 if (!menu->prompt)
503 menu_warn(menu, "choice value must have a prompt");
504 for (prop = menu->sym->prop; prop; prop = prop->next) {
505 if (prop->type == P_DEFAULT)
506 prop_warn(prop, "defaults for choice "
507 "values not supported");
508 if (prop->menu == menu)
509 continue;
510 if (prop->type == P_PROMPT &&
511 prop->menu->parent->sym != sym)
512 prop_warn(prop, "choice value used outside its choice group");
513 }
514 /* Non-tristate choice values of tristate choices must
515 * depend on the choice being set to Y. The choice
516 * values' dependencies were propagated to their
517 * properties above, so the change here must be re-
518 * propagated.
519 */
520 if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
521 basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
522 menu->dep = expr_alloc_and(basedep, menu->dep);
523 for (prop = menu->sym->prop; prop; prop = prop->next) {
524 if (prop->menu != menu)
525 continue;
526 prop->visible.expr = expr_alloc_and(expr_copy(basedep),
527 prop->visible.expr);
528 }
529 }
530 menu_add_symbol(P_CHOICE, sym, NULL);
531 prop = sym_get_choice_prop(sym);
532 for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
533 ;
534 *ep = expr_alloc_one(E_LIST, NULL);
535 (*ep)->right.sym = menu->sym;
536 }
537
538 /*
539 * This code serves two purposes:
540 *
541 * (1) Flattening 'if' blocks, which do not specify a submenu
542 * and only add dependencies.
543 *
544 * (Automatic submenu creation might still create a submenu
545 * from an 'if' before this code runs.)
546 *
547 * (2) "Undoing" any automatic submenus created earlier below
548 * promptless symbols.
549 *
550 * Before:
551 *
552 * A
553 * if ... (or promptless symbol)
554 * +-B
555 * +-C
556 * D
557 *
558 * After:
559 *
560 * A
561 * if ... (or promptless symbol)
562 * B
563 * C
564 * D
565 */
566 if (menu->list && (!menu->prompt || !menu->prompt->text)) {
567 for (last_menu = menu->list; ; last_menu = last_menu->next) {
568 last_menu->parent = parent;
569 if (!last_menu->next)
570 break;
571 }
572 last_menu->next = menu->next;
573 menu->next = menu->list;
574 menu->list = NULL;
575 }
576 }
577
578 if (sym && !(sym->flags & SYMBOL_WARNED)) {
579 if (sym->type == S_UNKNOWN)
580 menu_warn(parent, "config symbol defined without type");
581
582 if (sym_is_choice(sym) && !parent->prompt)
583 menu_warn(parent, "choice must have a prompt");
584
585 /* Check properties connected to this symbol */
586 sym_check_prop(sym);
587 sym->flags |= SYMBOL_WARNED;
588 }
589
590 /*
591 * For non-optional choices, add a reverse dependency (corresponding to
592 * a select) of '<visibility> && m'. This prevents the user from
593 * setting the choice mode to 'n' when the choice is visible.
594 *
595 * This would also work for non-choice symbols, but only non-optional
596 * choices clear SYMBOL_OPTIONAL as of writing. Choices are implemented
597 * as a type of symbol.
598 */
599 if (sym && !sym_is_optional(sym) && parent->prompt) {
600 sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
601 expr_alloc_and(parent->prompt->visible.expr,
602 expr_alloc_symbol(&symbol_mod)));
603 }
604 }
605
606 bool menu_has_prompt(struct menu *menu)
607 {
608 if (!menu->prompt)
609 return false;
610 return true;
611 }
612
613 /*
614 * Determine if a menu is empty.
615 * A menu is considered empty if it contains no or only
616 * invisible entries.
617 */
618 bool menu_is_empty(struct menu *menu)
619 {
620 struct menu *child;
621
622 for (child = menu->list; child; child = child->next) {
623 if (menu_is_visible(child))
624 return(false);
625 }
626 return(true);
627 }
628
629 bool menu_is_visible(struct menu *menu)
630 {
631 struct menu *child;
632 struct symbol *sym;
633 tristate visible;
634
635 if (!menu->prompt)
636 return false;
637
638 if (menu->visibility) {
639 if (expr_calc_value(menu->visibility) == no)
640 return false;
641 }
642
643 sym = menu->sym;
644 if (sym) {
645 sym_calc_value(sym);
646 visible = menu->prompt->visible.tri;
647 } else
648 visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
649
650 if (visible != no)
651 return true;
652
653 if (!sym || sym_get_tristate_value(menu->sym) == no)
654 return false;
655
656 for (child = menu->list; child; child = child->next) {
657 if (menu_is_visible(child)) {
658 if (sym)
659 sym->flags |= SYMBOL_DEF_USER;
660 return true;
661 }
662 }
663
664 return false;
665 }
666
667 const char *menu_get_prompt(struct menu *menu)
668 {
669 if (menu->prompt)
670 return menu->prompt->text;
671 else if (menu->sym)
672 return menu->sym->name;
673 return NULL;
674 }
675
676 struct menu *menu_get_root_menu(struct menu *menu)
677 {
678 return &rootmenu;
679 }
680
681 struct menu *menu_get_parent_menu(struct menu *menu)
682 {
683 enum prop_type type;
684
685 for (; menu != &rootmenu; menu = menu->parent) {
686 type = menu->prompt ? menu->prompt->type : 0;
687 if (type == P_MENU)
688 break;
689 }
690 return menu;
691 }
692
693 bool menu_has_help(struct menu *menu)
694 {
695 return menu->help != NULL;
696 }
697
698 const char *menu_get_help(struct menu *menu)
699 {
700 if (menu->help)
701 return menu->help;
702 else
703 return "";
704 }
705
706 static void get_prompt_str(struct gstr *r, struct property *prop,
707 struct list_head *head)
708 {
709 int i, j;
710 struct menu *submenu[8], *menu, *location = NULL;
711 struct jump_key *jump = NULL;
712
713 str_printf(r, _("Prompt: %s\n"), _(prop->text));
714 menu = prop->menu->parent;
715 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
716 bool accessible = menu_is_visible(menu);
717
718 submenu[i++] = menu;
719 if (location == NULL && accessible)
720 location = menu;
721 }
722 if (head && location) {
723 jump = xmalloc(sizeof(struct jump_key));
724
725 if (menu_is_visible(prop->menu)) {
726 /*
727 * There is not enough room to put the hint at the
728 * beginning of the "Prompt" line. Put the hint on the
729 * last "Location" line even when it would belong on
730 * the former.
731 */
732 jump->target = prop->menu;
733 } else
734 jump->target = location;
735
736 if (list_empty(head))
737 jump->index = 0;
738 else
739 jump->index = list_entry(head->prev, struct jump_key,
740 entries)->index + 1;
741
742 list_add_tail(&jump->entries, head);
743 }
744
745 if (i > 0) {
746 str_printf(r, _(" Location:\n"));
747 for (j = 4; --i >= 0; j += 2) {
748 menu = submenu[i];
749 if (jump && menu == location)
750 jump->offset = strlen(r->s);
751 str_printf(r, "%*c-> %s", j, ' ',
752 _(menu_get_prompt(menu)));
753 if (menu->sym) {
754 str_printf(r, " (%s [=%s])", menu->sym->name ?
755 menu->sym->name : _("<choice>"),
756 sym_get_string_value(menu->sym));
757 }
758 str_append(r, "\n");
759 }
760 }
761 }
762
763 /*
764 * get property of type P_SYMBOL
765 */
766 static struct property *get_symbol_prop(struct symbol *sym)
767 {
768 struct property *prop = NULL;
769
770 for_all_properties(sym, prop, P_SYMBOL)
771 break;
772 return prop;
773 }
774
775 static void get_symbol_props_str(struct gstr *r, struct symbol *sym,
776 enum prop_type tok, const char *prefix)
777 {
778 bool hit = false;
779 struct property *prop;
780
781 for_all_properties(sym, prop, tok) {
782 if (!hit) {
783 str_append(r, prefix);
784 hit = true;
785 } else
786 str_printf(r, " && ");
787 expr_gstr_print(prop->expr, r);
788 }
789 if (hit)
790 str_append(r, "\n");
791 }
792
793 /*
794 * head is optional and may be NULL
795 */
796 static void get_symbol_str(struct gstr *r, struct symbol *sym,
797 struct list_head *head)
798 {
799 struct property *prop;
800
801 if (sym && sym->name) {
802 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
803 sym_get_string_value(sym));
804 str_printf(r, "Type : %s\n", sym_type_name(sym->type));
805 if (sym->type == S_INT || sym->type == S_HEX) {
806 prop = sym_get_range_prop(sym);
807 if (prop) {
808 str_printf(r, "Range : ");
809 expr_gstr_print(prop->expr, r);
810 str_append(r, "\n");
811 }
812 }
813 }
814 for_all_prompts(sym, prop)
815 get_prompt_str(r, prop, head);
816
817 prop = get_symbol_prop(sym);
818 if (prop) {
819 str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
820 prop->menu->lineno);
821 if (!expr_is_yes(prop->visible.expr)) {
822 str_append(r, _(" Depends on: "));
823 expr_gstr_print(prop->visible.expr, r);
824 str_append(r, "\n");
825 }
826 }
827
828 get_symbol_props_str(r, sym, P_SELECT, _(" Selects: "));
829 if (sym->rev_dep.expr) {
830 str_append(r, _(" Selected by: "));
831 expr_gstr_print_revdep(sym->rev_dep.expr, r);
832 str_append(r, "\n");
833 }
834
835 get_symbol_props_str(r, sym, P_IMPLY, _(" Implies: "));
836 if (sym->implied.expr) {
837 str_append(r, _(" Implied by: "));
838 expr_gstr_print_revdep(sym->implied.expr, r);
839 str_append(r, "\n");
840 }
841
842 str_append(r, "\n\n");
843 }
844
845 struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
846 {
847 struct symbol *sym;
848 struct gstr res = str_new();
849 int i;
850
851 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
852 get_symbol_str(&res, sym, head);
853 if (!i)
854 str_append(&res, _("No matches found.\n"));
855 return res;
856 }
857
858
859 void menu_get_ext_help(struct menu *menu, struct gstr *help)
860 {
861 struct symbol *sym = menu->sym;
862 const char *help_text = nohelp_text;
863
864 if (menu_has_help(menu)) {
865 if (sym->name)
866 str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
867 help_text = menu_get_help(menu);
868 }
869 str_printf(help, "%s\n", _(help_text));
870 if (sym)
871 get_symbol_str(help, sym, NULL);
872 }
CRIS linux kernel tree