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Return to menu.c CVS log | Up to [Qemu by Fabrice Bellard] / qemu / roms / seabios / tools / kconfig |
1.1 root 1: /*
2: * Copyright (C) 2002 Roman Zippel <[email protected]>
3: * Released under the terms of the GNU GPL v2.0.
4: */
5:
6: #include <stdlib.h>
7: #include <string.h>
8:
9: #define LKC_DIRECT_LINK
10: #include "lkc.h"
11:
12: static const char nohelp_text[] = N_(
13: "There is no help available for this option.\n");
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 = malloc(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: void menu_end_entry(void)
66: {
67: }
68:
69: struct menu *menu_add_menu(void)
70: {
71: menu_end_entry();
72: last_entry_ptr = ¤t_entry->list;
73: return current_menu = current_entry;
74: }
75:
76: void menu_end_menu(void)
77: {
78: last_entry_ptr = ¤t_menu->next;
79: current_menu = current_menu->parent;
80: }
81:
82: static struct expr *menu_check_dep(struct expr *e)
83: {
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:
107: void menu_add_dep(struct expr *dep)
108: {
109: current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
110: }
111:
112: void 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: }
122: menu_warn(current_entry, "type of '%s' redefined from '%s' to '%s'",
123: sym->name ? sym->name : "<choice>",
124: sym_type_name(sym->type), sym_type_name(type));
125: }
126:
127: 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 = menu_check_dep(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: if (!menu->visibility)
150: continue;
151: prop->visible.expr
152: = expr_alloc_and(prop->visible.expr,
153: menu->visibility);
154: }
155: }
156:
157: current_entry->prompt = prop;
158: }
159: prop->text = prompt;
160:
161: return prop;
162: }
163:
164: struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
165: {
166: return menu_add_prop(type, prompt, NULL, dep);
167: }
168:
169: void menu_add_visibility(struct expr *expr)
170: {
171: current_entry->visibility = expr_alloc_and(current_entry->visibility,
172: expr);
173: }
174:
175: void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
176: {
177: menu_add_prop(type, NULL, expr, dep);
178: }
179:
180: void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
181: {
182: menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
183: }
184:
185: void menu_add_option(int token, char *arg)
186: {
187: struct property *prop;
188:
189: switch (token) {
190: case T_OPT_MODULES:
191: prop = prop_alloc(P_DEFAULT, modules_sym);
192: prop->expr = expr_alloc_symbol(current_entry->sym);
193: break;
194: case T_OPT_DEFCONFIG_LIST:
195: if (!sym_defconfig_list)
196: sym_defconfig_list = current_entry->sym;
197: else if (sym_defconfig_list != current_entry->sym)
198: zconf_error("trying to redefine defconfig symbol");
199: break;
200: case T_OPT_ENV:
201: prop_add_env(arg);
202: break;
203: }
204: }
205:
206: static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
207: {
208: return sym2->type == S_INT || sym2->type == S_HEX ||
209: (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
210: }
211:
212: static void sym_check_prop(struct symbol *sym)
213: {
214: struct property *prop;
215: struct symbol *sym2;
216: for (prop = sym->prop; prop; prop = prop->next) {
217: switch (prop->type) {
218: case P_DEFAULT:
219: if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
220: prop->expr->type != E_SYMBOL)
221: prop_warn(prop,
222: "default for config symbol '%s'"
223: " must be a single symbol", sym->name);
224: if (prop->expr->type != E_SYMBOL)
225: break;
226: sym2 = prop_get_symbol(prop);
227: if (sym->type == S_HEX || sym->type == S_INT) {
228: if (!menu_validate_number(sym, sym2))
229: prop_warn(prop,
230: "'%s': number is invalid",
231: sym->name);
232: }
233: break;
234: case P_SELECT:
235: sym2 = prop_get_symbol(prop);
236: if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
237: prop_warn(prop,
238: "config symbol '%s' uses select, but is "
239: "not boolean or tristate", sym->name);
240: else if (sym2->type != S_UNKNOWN &&
241: sym2->type != S_BOOLEAN &&
242: sym2->type != S_TRISTATE)
243: prop_warn(prop,
244: "'%s' has wrong type. 'select' only "
245: "accept arguments of boolean and "
246: "tristate type", sym2->name);
247: break;
248: case P_RANGE:
249: if (sym->type != S_INT && sym->type != S_HEX)
250: prop_warn(prop, "range is only allowed "
251: "for int or hex symbols");
252: if (!menu_validate_number(sym, prop->expr->left.sym) ||
253: !menu_validate_number(sym, prop->expr->right.sym))
254: prop_warn(prop, "range is invalid");
255: break;
256: default:
257: ;
258: }
259: }
260: }
261:
262: void menu_finalize(struct menu *parent)
263: {
264: struct menu *menu, *last_menu;
265: struct symbol *sym;
266: struct property *prop;
267: struct expr *parentdep, *basedep, *dep, *dep2, **ep;
268:
269: sym = parent->sym;
270: if (parent->list) {
271: if (sym && sym_is_choice(sym)) {
272: if (sym->type == S_UNKNOWN) {
273: /* find the first choice value to find out choice type */
274: current_entry = parent;
275: for (menu = parent->list; menu; menu = menu->next) {
276: if (menu->sym && menu->sym->type != S_UNKNOWN) {
277: menu_set_type(menu->sym->type);
278: break;
279: }
280: }
281: }
282: /* set the type of the remaining choice values */
283: for (menu = parent->list; menu; menu = menu->next) {
284: current_entry = menu;
285: if (menu->sym && menu->sym->type == S_UNKNOWN)
286: menu_set_type(sym->type);
287: }
288: parentdep = expr_alloc_symbol(sym);
289: } else if (parent->prompt)
290: parentdep = parent->prompt->visible.expr;
291: else
292: parentdep = parent->dep;
293:
294: for (menu = parent->list; menu; menu = menu->next) {
295: basedep = expr_transform(menu->dep);
296: basedep = expr_alloc_and(expr_copy(parentdep), basedep);
297: basedep = expr_eliminate_dups(basedep);
298: menu->dep = basedep;
299: if (menu->sym)
300: prop = menu->sym->prop;
301: else
302: prop = menu->prompt;
303: for (; prop; prop = prop->next) {
304: if (prop->menu != menu)
305: continue;
306: dep = expr_transform(prop->visible.expr);
307: dep = expr_alloc_and(expr_copy(basedep), dep);
308: dep = expr_eliminate_dups(dep);
309: if (menu->sym && menu->sym->type != S_TRISTATE)
310: dep = expr_trans_bool(dep);
311: prop->visible.expr = dep;
312: if (prop->type == P_SELECT) {
313: struct symbol *es = prop_get_symbol(prop);
314: es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
315: expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
316: }
317: }
318: }
319: for (menu = parent->list; menu; menu = menu->next)
320: menu_finalize(menu);
321: } else if (sym) {
322: basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
323: basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
324: basedep = expr_eliminate_dups(expr_transform(basedep));
325: last_menu = NULL;
326: for (menu = parent->next; menu; menu = menu->next) {
327: dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
328: if (!expr_contains_symbol(dep, sym))
329: break;
330: if (expr_depends_symbol(dep, sym))
331: goto next;
332: dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
333: dep = expr_eliminate_dups(expr_transform(dep));
334: dep2 = expr_copy(basedep);
335: expr_eliminate_eq(&dep, &dep2);
336: expr_free(dep);
337: if (!expr_is_yes(dep2)) {
338: expr_free(dep2);
339: break;
340: }
341: expr_free(dep2);
342: next:
343: menu_finalize(menu);
344: menu->parent = parent;
345: last_menu = menu;
346: }
347: if (last_menu) {
348: parent->list = parent->next;
349: parent->next = last_menu->next;
350: last_menu->next = NULL;
351: }
352:
353: sym->dir_dep.expr = parent->dep;
354: }
355: for (menu = parent->list; menu; menu = menu->next) {
356: if (sym && sym_is_choice(sym) &&
357: menu->sym && !sym_is_choice_value(menu->sym)) {
358: current_entry = menu;
359: menu->sym->flags |= SYMBOL_CHOICEVAL;
360: if (!menu->prompt)
361: menu_warn(menu, "choice value must have a prompt");
362: for (prop = menu->sym->prop; prop; prop = prop->next) {
363: if (prop->type == P_DEFAULT)
364: prop_warn(prop, "defaults for choice "
365: "values not supported");
366: if (prop->menu == menu)
367: continue;
368: if (prop->type == P_PROMPT &&
369: prop->menu->parent->sym != sym)
370: prop_warn(prop, "choice value used outside its choice group");
371: }
372: /* Non-tristate choice values of tristate choices must
373: * depend on the choice being set to Y. The choice
374: * values' dependencies were propagated to their
375: * properties above, so the change here must be re-
376: * propagated.
377: */
378: if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
379: basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
380: menu->dep = expr_alloc_and(basedep, menu->dep);
381: for (prop = menu->sym->prop; prop; prop = prop->next) {
382: if (prop->menu != menu)
383: continue;
384: prop->visible.expr = expr_alloc_and(expr_copy(basedep),
385: prop->visible.expr);
386: }
387: }
388: menu_add_symbol(P_CHOICE, sym, NULL);
389: prop = sym_get_choice_prop(sym);
390: for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
391: ;
392: *ep = expr_alloc_one(E_LIST, NULL);
393: (*ep)->right.sym = menu->sym;
394: }
395: if (menu->list && (!menu->prompt || !menu->prompt->text)) {
396: for (last_menu = menu->list; ; last_menu = last_menu->next) {
397: last_menu->parent = parent;
398: if (!last_menu->next)
399: break;
400: }
401: last_menu->next = menu->next;
402: menu->next = menu->list;
403: menu->list = NULL;
404: }
405: }
406:
407: if (sym && !(sym->flags & SYMBOL_WARNED)) {
408: if (sym->type == S_UNKNOWN)
409: menu_warn(parent, "config symbol defined without type");
410:
411: if (sym_is_choice(sym) && !parent->prompt)
412: menu_warn(parent, "choice must have a prompt");
413:
414: /* Check properties connected to this symbol */
415: sym_check_prop(sym);
416: sym->flags |= SYMBOL_WARNED;
417: }
418:
419: if (sym && !sym_is_optional(sym) && parent->prompt) {
420: sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
421: expr_alloc_and(parent->prompt->visible.expr,
422: expr_alloc_symbol(&symbol_mod)));
423: }
424: }
425:
426: bool menu_has_prompt(struct menu *menu)
427: {
428: if (!menu->prompt)
429: return false;
430: return true;
431: }
432:
433: bool menu_is_visible(struct menu *menu)
434: {
435: struct menu *child;
436: struct symbol *sym;
437: tristate visible;
438:
439: if (!menu->prompt)
440: return false;
441:
442: if (menu->visibility) {
443: if (expr_calc_value(menu->visibility) == no)
444: return no;
445: }
446:
447: sym = menu->sym;
448: if (sym) {
449: sym_calc_value(sym);
450: visible = menu->prompt->visible.tri;
451: } else
452: visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
453:
454: if (visible != no)
455: return true;
456:
457: if (!sym || sym_get_tristate_value(menu->sym) == no)
458: return false;
459:
460: for (child = menu->list; child; child = child->next) {
461: if (menu_is_visible(child)) {
462: if (sym)
463: sym->flags |= SYMBOL_DEF_USER;
464: return true;
465: }
466: }
467:
468: return false;
469: }
470:
471: const char *menu_get_prompt(struct menu *menu)
472: {
473: if (menu->prompt)
474: return menu->prompt->text;
475: else if (menu->sym)
476: return menu->sym->name;
477: return NULL;
478: }
479:
480: struct menu *menu_get_root_menu(struct menu *menu)
481: {
482: return &rootmenu;
483: }
484:
485: struct menu *menu_get_parent_menu(struct menu *menu)
486: {
487: enum prop_type type;
488:
489: for (; menu != &rootmenu; menu = menu->parent) {
490: type = menu->prompt ? menu->prompt->type : 0;
491: if (type == P_MENU)
492: break;
493: }
494: return menu;
495: }
496:
497: bool menu_has_help(struct menu *menu)
498: {
499: return menu->help != NULL;
500: }
501:
502: const char *menu_get_help(struct menu *menu)
503: {
504: if (menu->help)
505: return menu->help;
506: else
507: return "";
508: }
509:
510: static void get_prompt_str(struct gstr *r, struct property *prop)
511: {
512: int i, j;
513: struct menu *submenu[8], *menu;
514:
515: str_printf(r, _("Prompt: %s\n"), _(prop->text));
516: str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
517: prop->menu->lineno);
518: if (!expr_is_yes(prop->visible.expr)) {
519: str_append(r, _(" Depends on: "));
520: expr_gstr_print(prop->visible.expr, r);
521: str_append(r, "\n");
522: }
523: menu = prop->menu->parent;
524: for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
525: submenu[i++] = menu;
526: if (i > 0) {
527: str_printf(r, _(" Location:\n"));
528: for (j = 4; --i >= 0; j += 2) {
529: menu = submenu[i];
530: str_printf(r, "%*c-> %s", j, ' ', _(menu_get_prompt(menu)));
531: if (menu->sym) {
532: str_printf(r, " (%s [=%s])", menu->sym->name ?
533: menu->sym->name : _("<choice>"),
534: sym_get_string_value(menu->sym));
535: }
536: str_append(r, "\n");
537: }
538: }
539: }
540:
541: void get_symbol_str(struct gstr *r, struct symbol *sym)
542: {
543: bool hit;
544: struct property *prop;
545:
546: if (sym && sym->name) {
547: str_printf(r, "Symbol: %s [=%s]\n", sym->name,
548: sym_get_string_value(sym));
549: str_printf(r, "Type : %s\n", sym_type_name(sym->type));
550: if (sym->type == S_INT || sym->type == S_HEX) {
551: prop = sym_get_range_prop(sym);
552: if (prop) {
553: str_printf(r, "Range : ");
554: expr_gstr_print(prop->expr, r);
555: str_append(r, "\n");
556: }
557: }
558: }
559: for_all_prompts(sym, prop)
560: get_prompt_str(r, prop);
561: hit = false;
562: for_all_properties(sym, prop, P_SELECT) {
563: if (!hit) {
564: str_append(r, " Selects: ");
565: hit = true;
566: } else
567: str_printf(r, " && ");
568: expr_gstr_print(prop->expr, r);
569: }
570: if (hit)
571: str_append(r, "\n");
572: if (sym->rev_dep.expr) {
573: str_append(r, _(" Selected by: "));
574: expr_gstr_print(sym->rev_dep.expr, r);
575: str_append(r, "\n");
576: }
577: str_append(r, "\n\n");
578: }
579:
580: struct gstr get_relations_str(struct symbol **sym_arr)
581: {
582: struct symbol *sym;
583: struct gstr res = str_new();
584: int i;
585:
586: for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
587: get_symbol_str(&res, sym);
588: if (!i)
589: str_append(&res, _("No matches found.\n"));
590: return res;
591: }
592:
593:
594: void menu_get_ext_help(struct menu *menu, struct gstr *help)
595: {
596: struct symbol *sym = menu->sym;
597:
598: if (menu_has_help(menu)) {
599: if (sym->name) {
600: str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
601: str_append(help, _(menu_get_help(menu)));
602: str_append(help, "\n");
603: }
604: } else {
605: str_append(help, nohelp_text);
606: }
607: if (sym)
608: get_symbol_str(help, sym);
609: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.