blob: db1512ae30cc48d6f2ea87bc26a082a084551811 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
4 */
5
Arnaud Lacombedd003302011-06-01 16:06:22 -04006#include <ctype.h>
Arnaud Lacombe10a4b272011-06-01 16:00:46 -04007#include <stdarg.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07008#include <stdlib.h>
9#include <string.h>
10
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#include "lkc.h"
12
Arnaud Lacombe57e62922011-08-03 21:52:07 -040013static const char nohelp_text[] = "There is no help available for this option.";
Cheng Renquan6bd59992009-07-12 16:11:44 +080014
Linus Torvalds1da177e2005-04-16 15:20:36 -070015struct menu rootmenu;
16static struct menu **last_entry_ptr;
17
18struct file *file_list;
19struct file *current_file;
20
Roman Zippel93449082008-01-14 04:50:54 +010021void menu_warn(struct menu *menu, const char *fmt, ...)
Linus Torvalds1da177e2005-04-16 15:20:36 -070022{
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
31static 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
nir.tzachar@gmail.com692d97c2009-11-25 12:28:43 +020041void _menu_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070042{
43 current_entry = current_menu = &rootmenu;
44 last_entry_ptr = &rootmenu.list;
45}
46
47void menu_add_entry(struct symbol *sym)
48{
49 struct menu *menu;
50
Alan Cox177acf72012-11-06 14:32:08 +000051 menu = xmalloc(sizeof(*menu));
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 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;
Sam Ravnborg59e89e32010-07-31 23:35:29 +020061 if (sym)
62 menu_add_symbol(P_SYMBOL, sym, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070063}
64
65void menu_end_entry(void)
66{
67}
68
Roman Zippela02f0572005-11-08 21:34:53 -080069struct menu *menu_add_menu(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070070{
Roman Zippela02f0572005-11-08 21:34:53 -080071 menu_end_entry();
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 last_entry_ptr = &current_entry->list;
Roman Zippela02f0572005-11-08 21:34:53 -080073 return current_menu = current_entry;
Linus Torvalds1da177e2005-04-16 15:20:36 -070074}
75
76void menu_end_menu(void)
77{
78 last_entry_ptr = &current_menu->next;
79 current_menu = current_menu->parent;
80}
81
Trevor Keith4356f482009-09-18 12:49:23 -070082static struct expr *menu_check_dep(struct expr *e)
Linus Torvalds1da177e2005-04-16 15:20:36 -070083{
84 if (!e)
85 return e;
86
87 switch (e->type) {
88 case E_NOT:
89 e->left.expr = menu_check_dep(e->left.expr);
90 break;
91 case E_OR:
92 case E_AND:
93 e->left.expr = menu_check_dep(e->left.expr);
94 e->right.expr = menu_check_dep(e->right.expr);
95 break;
96 case E_SYMBOL:
97 /* change 'm' into 'm' && MODULES */
98 if (e->left.sym == &symbol_mod)
99 return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
100 break;
101 default:
102 break;
103 }
104 return e;
105}
106
107void menu_add_dep(struct expr *dep)
108{
109 current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
110}
111
112void menu_set_type(int type)
113{
114 struct symbol *sym = current_entry->sym;
115
116 if (sym->type == type)
117 return;
118 if (sym->type == S_UNKNOWN) {
119 sym->type = type;
120 return;
121 }
Martin Walch57540f1d2013-10-03 18:32:02 +0200122 menu_warn(current_entry,
123 "ignoring type redefinition of '%s' from '%s' to '%s'",
124 sym->name ? sym->name : "<choice>",
125 sym_type_name(sym->type), sym_type_name(type));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126}
127
128struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
129{
130 struct property *prop = prop_alloc(type, current_entry->sym);
131
132 prop->menu = current_entry;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 prop->expr = expr;
134 prop->visible.expr = menu_check_dep(dep);
135
136 if (prompt) {
Roman Zippelf001f7f2006-06-08 22:12:48 -0700137 if (isspace(*prompt)) {
138 prop_warn(prop, "leading whitespace ignored");
139 while (isspace(*prompt))
140 prompt++;
141 }
Arnaud Lacombeba6ff602010-09-04 16:05:15 -0400142 if (current_entry->prompt && current_entry != &rootmenu)
Roman Zippelf001f7f2006-06-08 22:12:48 -0700143 prop_warn(prop, "prompt redefined");
Jan Beulich7ad12272010-12-09 08:11:38 +0000144
145 /* Apply all upper menus' visibilities to actual prompts. */
146 if(type == P_PROMPT) {
147 struct menu *menu = current_entry;
148
149 while ((menu = menu->parent) != NULL) {
Dirk Gouderse983b7b2013-05-21 10:54:11 +0200150 struct expr *dup_expr;
151
Jan Beulich7ad12272010-12-09 08:11:38 +0000152 if (!menu->visibility)
153 continue;
Dirk Gouderse983b7b2013-05-21 10:54:11 +0200154 /*
155 * Do not add a reference to the
156 * menu's visibility expression but
157 * use a copy of it. Otherwise the
158 * expression reduction functions
159 * will modify expressions that have
160 * multiple references which can
161 * cause unwanted side effects.
162 */
163 dup_expr = expr_copy(menu->visibility);
164
Jan Beulich7ad12272010-12-09 08:11:38 +0000165 prop->visible.expr
166 = expr_alloc_and(prop->visible.expr,
Dirk Gouderse983b7b2013-05-21 10:54:11 +0200167 dup_expr);
Jan Beulich7ad12272010-12-09 08:11:38 +0000168 }
169 }
170
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 current_entry->prompt = prop;
172 }
Roman Zippelf001f7f2006-06-08 22:12:48 -0700173 prop->text = prompt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174
175 return prop;
176}
177
blaisorblade@yahoo.itfb7f6ff2005-07-28 17:56:25 +0200178struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179{
blaisorblade@yahoo.itfb7f6ff2005-07-28 17:56:25 +0200180 return menu_add_prop(type, prompt, NULL, dep);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181}
182
Arnaud Lacombe86e187f2010-11-06 18:30:23 -0300183void menu_add_visibility(struct expr *expr)
184{
185 current_entry->visibility = expr_alloc_and(current_entry->visibility,
186 expr);
187}
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
190{
191 menu_add_prop(type, NULL, expr, dep);
192}
193
194void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
195{
196 menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
197}
198
Roman Zippelf6a88aa2006-06-08 22:12:44 -0700199void menu_add_option(int token, char *arg)
200{
Roman Zippelface4372006-06-08 22:12:45 -0700201 switch (token) {
202 case T_OPT_MODULES:
Yann E. MORINe0627812013-09-03 22:22:26 +0200203 if (modules_sym)
204 zconf_error("symbol '%s' redefines option 'modules'"
205 " already defined by symbol '%s'",
206 current_entry->sym->name,
207 modules_sym->name
208 );
Yann E. MORIN6902dcc2013-09-03 17:07:18 +0200209 modules_sym = current_entry->sym;
Roman Zippelface4372006-06-08 22:12:45 -0700210 break;
211 case T_OPT_DEFCONFIG_LIST:
212 if (!sym_defconfig_list)
213 sym_defconfig_list = current_entry->sym;
214 else if (sym_defconfig_list != current_entry->sym)
215 zconf_error("trying to redefine defconfig symbol");
216 break;
Roman Zippel93449082008-01-14 04:50:54 +0100217 case T_OPT_ENV:
218 prop_add_env(arg);
219 break;
Roman Zippelface4372006-06-08 22:12:45 -0700220 }
Roman Zippelf6a88aa2006-06-08 22:12:44 -0700221}
222
Arnaud Lacombeab60bd02010-12-05 01:29:25 -0500223static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
Roman Zippel4cf3cbe2005-11-08 21:34:49 -0800224{
225 return sym2->type == S_INT || sym2->type == S_HEX ||
226 (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
227}
228
Trevor Keith4356f482009-09-18 12:49:23 -0700229static void sym_check_prop(struct symbol *sym)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230{
231 struct property *prop;
232 struct symbol *sym2;
233 for (prop = sym->prop; prop; prop = prop->next) {
234 switch (prop->type) {
235 case P_DEFAULT:
236 if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
237 prop->expr->type != E_SYMBOL)
238 prop_warn(prop,
Li Zefan4280eae2010-04-14 11:44:05 +0800239 "default for config symbol '%s'"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 " must be a single symbol", sym->name);
Arnaud Lacombeab60bd02010-12-05 01:29:25 -0500241 if (prop->expr->type != E_SYMBOL)
242 break;
243 sym2 = prop_get_symbol(prop);
244 if (sym->type == S_HEX || sym->type == S_INT) {
245 if (!menu_validate_number(sym, sym2))
246 prop_warn(prop,
247 "'%s': number is invalid",
248 sym->name);
249 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 break;
251 case P_SELECT:
252 sym2 = prop_get_symbol(prop);
253 if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
254 prop_warn(prop,
255 "config symbol '%s' uses select, but is "
256 "not boolean or tristate", sym->name);
Sam Ravnborg603d4982008-02-02 21:09:57 +0100257 else if (sym2->type != S_UNKNOWN &&
258 sym2->type != S_BOOLEAN &&
259 sym2->type != S_TRISTATE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 prop_warn(prop,
261 "'%s' has wrong type. 'select' only "
262 "accept arguments of boolean and "
263 "tristate type", sym2->name);
264 break;
265 case P_RANGE:
266 if (sym->type != S_INT && sym->type != S_HEX)
267 prop_warn(prop, "range is only allowed "
268 "for int or hex symbols");
Arnaud Lacombeab60bd02010-12-05 01:29:25 -0500269 if (!menu_validate_number(sym, prop->expr->left.sym) ||
270 !menu_validate_number(sym, prop->expr->right.sym))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 prop_warn(prop, "range is invalid");
272 break;
273 default:
274 ;
275 }
276 }
277}
278
279void menu_finalize(struct menu *parent)
280{
281 struct menu *menu, *last_menu;
282 struct symbol *sym;
283 struct property *prop;
284 struct expr *parentdep, *basedep, *dep, *dep2, **ep;
285
286 sym = parent->sym;
287 if (parent->list) {
288 if (sym && sym_is_choice(sym)) {
Roman Zippel5a1aa8a2008-02-29 05:11:50 +0100289 if (sym->type == S_UNKNOWN) {
290 /* find the first choice value to find out choice type */
291 current_entry = parent;
292 for (menu = parent->list; menu; menu = menu->next) {
293 if (menu->sym && menu->sym->type != S_UNKNOWN) {
Jan Beulichf5eaa322008-01-24 11:54:23 +0000294 menu_set_type(menu->sym->type);
Roman Zippel5a1aa8a2008-02-29 05:11:50 +0100295 break;
296 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 }
298 }
Roman Zippel5a1aa8a2008-02-29 05:11:50 +0100299 /* set the type of the remaining choice values */
300 for (menu = parent->list; menu; menu = menu->next) {
301 current_entry = menu;
302 if (menu->sym && menu->sym->type == S_UNKNOWN)
303 menu_set_type(sym->type);
304 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305 parentdep = expr_alloc_symbol(sym);
306 } else if (parent->prompt)
307 parentdep = parent->prompt->visible.expr;
308 else
309 parentdep = parent->dep;
310
311 for (menu = parent->list; menu; menu = menu->next) {
312 basedep = expr_transform(menu->dep);
Linus Torvaldse8b8c972007-10-19 21:25:45 -0700313 basedep = expr_alloc_and(expr_copy(parentdep), basedep);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 basedep = expr_eliminate_dups(basedep);
315 menu->dep = basedep;
316 if (menu->sym)
317 prop = menu->sym->prop;
318 else
319 prop = menu->prompt;
320 for (; prop; prop = prop->next) {
321 if (prop->menu != menu)
322 continue;
323 dep = expr_transform(prop->visible.expr);
324 dep = expr_alloc_and(expr_copy(basedep), dep);
325 dep = expr_eliminate_dups(dep);
326 if (menu->sym && menu->sym->type != S_TRISTATE)
327 dep = expr_trans_bool(dep);
328 prop->visible.expr = dep;
329 if (prop->type == P_SELECT) {
330 struct symbol *es = prop_get_symbol(prop);
331 es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
332 expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
333 }
334 }
335 }
336 for (menu = parent->list; menu; menu = menu->next)
337 menu_finalize(menu);
338 } else if (sym) {
339 basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
340 basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
341 basedep = expr_eliminate_dups(expr_transform(basedep));
342 last_menu = NULL;
343 for (menu = parent->next; menu; menu = menu->next) {
344 dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
345 if (!expr_contains_symbol(dep, sym))
346 break;
347 if (expr_depends_symbol(dep, sym))
348 goto next;
349 dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
350 dep = expr_eliminate_dups(expr_transform(dep));
351 dep2 = expr_copy(basedep);
352 expr_eliminate_eq(&dep, &dep2);
353 expr_free(dep);
354 if (!expr_is_yes(dep2)) {
355 expr_free(dep2);
356 break;
357 }
358 expr_free(dep2);
359 next:
360 menu_finalize(menu);
361 menu->parent = parent;
362 last_menu = menu;
363 }
364 if (last_menu) {
365 parent->list = parent->next;
366 parent->next = last_menu->next;
367 last_menu->next = NULL;
368 }
Arnaud Lacombeff5ff602010-09-26 16:22:03 -0400369
Arnaud Lacombeec6452a2011-06-08 01:42:11 -0400370 sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 }
372 for (menu = parent->list; menu; menu = menu->next) {
Roman Zippel5a1aa8a2008-02-29 05:11:50 +0100373 if (sym && sym_is_choice(sym) &&
374 menu->sym && !sym_is_choice_value(menu->sym)) {
375 current_entry = menu;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 menu->sym->flags |= SYMBOL_CHOICEVAL;
377 if (!menu->prompt)
378 menu_warn(menu, "choice value must have a prompt");
379 for (prop = menu->sym->prop; prop; prop = prop->next) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 if (prop->type == P_DEFAULT)
381 prop_warn(prop, "defaults for choice "
Roman Zippel5a1aa8a2008-02-29 05:11:50 +0100382 "values not supported");
383 if (prop->menu == menu)
384 continue;
385 if (prop->type == P_PROMPT &&
386 prop->menu->parent->sym != sym)
387 prop_warn(prop, "choice value used outside its choice group");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 }
Jan Beulichf5eaa322008-01-24 11:54:23 +0000389 /* Non-tristate choice values of tristate choices must
390 * depend on the choice being set to Y. The choice
391 * values' dependencies were propagated to their
392 * properties above, so the change here must be re-
Roman Zippel5a1aa8a2008-02-29 05:11:50 +0100393 * propagated.
394 */
Jan Beulichf5eaa322008-01-24 11:54:23 +0000395 if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
396 basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
Roman Zippel5a1aa8a2008-02-29 05:11:50 +0100397 menu->dep = expr_alloc_and(basedep, menu->dep);
Jan Beulichf5eaa322008-01-24 11:54:23 +0000398 for (prop = menu->sym->prop; prop; prop = prop->next) {
399 if (prop->menu != menu)
400 continue;
Roman Zippel5a1aa8a2008-02-29 05:11:50 +0100401 prop->visible.expr = expr_alloc_and(expr_copy(basedep),
402 prop->visible.expr);
Jan Beulichf5eaa322008-01-24 11:54:23 +0000403 }
404 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 menu_add_symbol(P_CHOICE, sym, NULL);
406 prop = sym_get_choice_prop(sym);
407 for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
408 ;
Roman Zippel7a962922008-01-14 04:50:23 +0100409 *ep = expr_alloc_one(E_LIST, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 (*ep)->right.sym = menu->sym;
411 }
412 if (menu->list && (!menu->prompt || !menu->prompt->text)) {
413 for (last_menu = menu->list; ; last_menu = last_menu->next) {
414 last_menu->parent = parent;
415 if (!last_menu->next)
416 break;
417 }
418 last_menu->next = menu->next;
419 menu->next = menu->list;
420 menu->list = NULL;
421 }
422 }
423
424 if (sym && !(sym->flags & SYMBOL_WARNED)) {
425 if (sym->type == S_UNKNOWN)
Roman Zippelf001f7f2006-06-08 22:12:48 -0700426 menu_warn(parent, "config symbol defined without type");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
428 if (sym_is_choice(sym) && !parent->prompt)
Roman Zippelf001f7f2006-06-08 22:12:48 -0700429 menu_warn(parent, "choice must have a prompt");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430
431 /* Check properties connected to this symbol */
432 sym_check_prop(sym);
433 sym->flags |= SYMBOL_WARNED;
434 }
435
436 if (sym && !sym_is_optional(sym) && parent->prompt) {
437 sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
438 expr_alloc_and(parent->prompt->visible.expr,
439 expr_alloc_symbol(&symbol_mod)));
440 }
441}
442
Li Zefan22c7eca2010-04-14 11:46:02 +0800443bool menu_has_prompt(struct menu *menu)
444{
445 if (!menu->prompt)
446 return false;
447 return true;
448}
449
Dirk Gouders1278ebd2013-05-19 21:49:34 +0200450/*
451 * Determine if a menu is empty.
452 * A menu is considered empty if it contains no or only
453 * invisible entries.
454 */
455bool menu_is_empty(struct menu *menu)
456{
457 struct menu *child;
458
459 for (child = menu->list; child; child = child->next) {
460 if (menu_is_visible(child))
461 return(false);
462 }
463 return(true);
464}
465
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466bool menu_is_visible(struct menu *menu)
467{
468 struct menu *child;
469 struct symbol *sym;
470 tristate visible;
471
472 if (!menu->prompt)
473 return false;
Li Zefan22c7eca2010-04-14 11:46:02 +0800474
Arnaud Lacombe86e187f2010-11-06 18:30:23 -0300475 if (menu->visibility) {
476 if (expr_calc_value(menu->visibility) == no)
477 return no;
478 }
479
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480 sym = menu->sym;
481 if (sym) {
482 sym_calc_value(sym);
483 visible = menu->prompt->visible.tri;
484 } else
485 visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
486
487 if (visible != no)
488 return true;
Li Zefan22c7eca2010-04-14 11:46:02 +0800489
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 if (!sym || sym_get_tristate_value(menu->sym) == no)
491 return false;
492
Li Zefan3fb9acb2010-05-07 13:57:07 +0800493 for (child = menu->list; child; child = child->next) {
494 if (menu_is_visible(child)) {
495 if (sym)
496 sym->flags |= SYMBOL_DEF_USER;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 return true;
Li Zefan3fb9acb2010-05-07 13:57:07 +0800498 }
499 }
Li Zefan22c7eca2010-04-14 11:46:02 +0800500
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501 return false;
502}
503
504const char *menu_get_prompt(struct menu *menu)
505{
506 if (menu->prompt)
EGRY Gabor01771b02008-01-11 23:53:43 +0100507 return menu->prompt->text;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508 else if (menu->sym)
EGRY Gabor01771b02008-01-11 23:53:43 +0100509 return menu->sym->name;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510 return NULL;
511}
512
513struct menu *menu_get_root_menu(struct menu *menu)
514{
515 return &rootmenu;
516}
517
518struct menu *menu_get_parent_menu(struct menu *menu)
519{
520 enum prop_type type;
521
522 for (; menu != &rootmenu; menu = menu->parent) {
523 type = menu->prompt ? menu->prompt->type : 0;
524 if (type == P_MENU)
525 break;
526 }
527 return menu;
528}
529
Sam Ravnborg03d29122007-07-21 00:00:36 +0200530bool menu_has_help(struct menu *menu)
531{
532 return menu->help != NULL;
533}
534
535const char *menu_get_help(struct menu *menu)
536{
537 if (menu->help)
538 return menu->help;
539 else
540 return "";
541}
Cheng Renquan6bd59992009-07-12 16:11:44 +0800542
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400543static void get_prompt_str(struct gstr *r, struct property *prop,
Benjamin Poirierbad99552012-10-21 05:27:53 -0400544 struct list_head *head)
Cheng Renquan6bd59992009-07-12 16:11:44 +0800545{
546 int i, j;
Benjamin Poirier5e609ad2012-08-23 14:55:06 -0400547 struct menu *submenu[8], *menu, *location = NULL;
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400548 struct jump_key *jump;
Cheng Renquan6bd59992009-07-12 16:11:44 +0800549
550 str_printf(r, _("Prompt: %s\n"), _(prop->text));
Cheng Renquan6bd59992009-07-12 16:11:44 +0800551 menu = prop->menu->parent;
Benjamin Poirier5e609ad2012-08-23 14:55:06 -0400552 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
553 bool accessible = menu_is_visible(menu);
554
Cheng Renquan6bd59992009-07-12 16:11:44 +0800555 submenu[i++] = menu;
Benjamin Poirier5e609ad2012-08-23 14:55:06 -0400556 if (location == NULL && accessible)
557 location = menu;
558 }
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400559 if (head && location) {
Alan Cox177acf72012-11-06 14:32:08 +0000560 jump = xmalloc(sizeof(struct jump_key));
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400561
Benjamin Poirier5e609ad2012-08-23 14:55:06 -0400562 if (menu_is_visible(prop->menu)) {
563 /*
564 * There is not enough room to put the hint at the
565 * beginning of the "Prompt" line. Put the hint on the
566 * last "Location" line even when it would belong on
567 * the former.
568 */
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400569 jump->target = prop->menu;
Benjamin Poirier5e609ad2012-08-23 14:55:06 -0400570 } else
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400571 jump->target = location;
572
Benjamin Poirierbad99552012-10-21 05:27:53 -0400573 if (list_empty(head))
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400574 jump->index = 0;
575 else
Benjamin Poirierbad99552012-10-21 05:27:53 -0400576 jump->index = list_entry(head->prev, struct jump_key,
577 entries)->index + 1;
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400578
Benjamin Poirierbad99552012-10-21 05:27:53 -0400579 list_add_tail(&jump->entries, head);
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400580 }
Benjamin Poirier5e609ad2012-08-23 14:55:06 -0400581
Cheng Renquan6bd59992009-07-12 16:11:44 +0800582 if (i > 0) {
583 str_printf(r, _(" Location:\n"));
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400584 for (j = 4; --i >= 0; j += 2) {
Cheng Renquan6bd59992009-07-12 16:11:44 +0800585 menu = submenu[i];
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400586 if (head && location && menu == location)
Martin Walch503c8232013-10-03 18:35:16 +0200587 jump->offset = strlen(r->s);
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400588 str_printf(r, "%*c-> %s", j, ' ',
589 _(menu_get_prompt(menu)));
Cheng Renquan6bd59992009-07-12 16:11:44 +0800590 if (menu->sym) {
591 str_printf(r, " (%s [=%s])", menu->sym->name ?
592 menu->sym->name : _("<choice>"),
593 sym_get_string_value(menu->sym));
594 }
595 str_append(r, "\n");
596 }
597 }
598}
599
Benjamin Poirier5e609ad2012-08-23 14:55:06 -0400600/*
Martin Walch8d9dfe82013-10-03 17:28:14 +0200601 * get property of type P_SYMBOL
Wengmeilingbcdedcc2013-04-30 15:28:46 -0700602 */
603static struct property *get_symbol_prop(struct symbol *sym)
604{
605 struct property *prop = NULL;
606
607 for_all_properties(sym, prop, P_SYMBOL)
608 break;
609 return prop;
610}
611
612/*
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400613 * head is optional and may be NULL
Benjamin Poirier5e609ad2012-08-23 14:55:06 -0400614 */
Benjamin Poirierbad99552012-10-21 05:27:53 -0400615void get_symbol_str(struct gstr *r, struct symbol *sym,
616 struct list_head *head)
Cheng Renquan6bd59992009-07-12 16:11:44 +0800617{
618 bool hit;
619 struct property *prop;
620
Li Zefanb040b442010-05-07 13:56:33 +0800621 if (sym && sym->name) {
Cheng Renquan6bd59992009-07-12 16:11:44 +0800622 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
623 sym_get_string_value(sym));
Li Zefanb040b442010-05-07 13:56:33 +0800624 str_printf(r, "Type : %s\n", sym_type_name(sym->type));
Li Zefan70ed0742010-05-07 13:56:50 +0800625 if (sym->type == S_INT || sym->type == S_HEX) {
626 prop = sym_get_range_prop(sym);
627 if (prop) {
628 str_printf(r, "Range : ");
629 expr_gstr_print(prop->expr, r);
630 str_append(r, "\n");
631 }
632 }
Li Zefanb040b442010-05-07 13:56:33 +0800633 }
Cheng Renquan6bd59992009-07-12 16:11:44 +0800634 for_all_prompts(sym, prop)
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400635 get_prompt_str(r, prop, head);
Li Zefan383da762013-05-07 15:56:54 +0200636
Wengmeilingbcdedcc2013-04-30 15:28:46 -0700637 prop = get_symbol_prop(sym);
Li Zefan383da762013-05-07 15:56:54 +0200638 if (prop) {
639 str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
640 prop->menu->lineno);
641 if (!expr_is_yes(prop->visible.expr)) {
642 str_append(r, _(" Depends on: "));
643 expr_gstr_print(prop->visible.expr, r);
644 str_append(r, "\n");
645 }
Wengmeilingbcdedcc2013-04-30 15:28:46 -0700646 }
Li Zefan383da762013-05-07 15:56:54 +0200647
Cheng Renquan6bd59992009-07-12 16:11:44 +0800648 hit = false;
649 for_all_properties(sym, prop, P_SELECT) {
650 if (!hit) {
651 str_append(r, " Selects: ");
652 hit = true;
653 } else
654 str_printf(r, " && ");
655 expr_gstr_print(prop->expr, r);
656 }
657 if (hit)
658 str_append(r, "\n");
659 if (sym->rev_dep.expr) {
660 str_append(r, _(" Selected by: "));
661 expr_gstr_print(sym->rev_dep.expr, r);
662 str_append(r, "\n");
663 }
664 str_append(r, "\n\n");
665}
666
Benjamin Poirierbad99552012-10-21 05:27:53 -0400667struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
nir.tzachar@gmail.com692d97c2009-11-25 12:28:43 +0200668{
669 struct symbol *sym;
670 struct gstr res = str_new();
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400671 int i;
nir.tzachar@gmail.com692d97c2009-11-25 12:28:43 +0200672
673 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400674 get_symbol_str(&res, sym, head);
nir.tzachar@gmail.com692d97c2009-11-25 12:28:43 +0200675 if (!i)
676 str_append(&res, _("No matches found.\n"));
677 return res;
678}
679
680
Cheng Renquan6bd59992009-07-12 16:11:44 +0800681void menu_get_ext_help(struct menu *menu, struct gstr *help)
682{
683 struct symbol *sym = menu->sym;
Arnaud Lacombe57e62922011-08-03 21:52:07 -0400684 const char *help_text = nohelp_text;
Cheng Renquan6bd59992009-07-12 16:11:44 +0800685
686 if (menu_has_help(menu)) {
Srinivas Kandagatla3f198df2011-08-02 18:49:52 +0100687 if (sym->name)
Arnaud Lacombeffb59572010-08-14 23:57:43 -0400688 str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
Arnaud Lacombe57e62922011-08-03 21:52:07 -0400689 help_text = menu_get_help(menu);
Cheng Renquan6bd59992009-07-12 16:11:44 +0800690 }
Arnaud Lacombe57e62922011-08-03 21:52:07 -0400691 str_printf(help, "%s\n", _(help_text));
Cheng Renquan47791052009-07-12 16:11:46 +0800692 if (sym)
Benjamin Poirier95ac9b32012-08-23 14:55:08 -0400693 get_symbol_str(help, sym, NULL);
Cheng Renquan6bd59992009-07-12 16:11:44 +0800694}