2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
10 #include <sys/utsname.h>
12 #define LKC_DIRECT_LINK
15 struct symbol symbol_yes = {
18 .flags = SYMBOL_YES|SYMBOL_VALID,
22 .flags = SYMBOL_MOD|SYMBOL_VALID,
26 .flags = SYMBOL_NO|SYMBOL_VALID,
30 .flags = SYMBOL_VALID,
34 struct symbol *modules_sym;
37 void sym_add_default(struct symbol *sym, const char *def)
39 struct property *prop = prop_alloc(P_DEFAULT, sym);
41 prop->expr = expr_alloc_symbol(sym_lookup(def, 1));
49 static bool inited = false;
57 sym = sym_lookup("ARCH", 0);
59 sym->flags |= SYMBOL_AUTO;
62 sym_add_default(sym, p);
64 sym = sym_lookup("OPENWRTVERSION", 0);
66 sym->flags |= SYMBOL_AUTO;
67 p = getenv("OPENWRTVERSION");
69 sym_add_default(sym, p);
71 sym = sym_lookup("UNAME_RELEASE", 0);
73 sym->flags |= SYMBOL_AUTO;
74 sym_add_default(sym, uts.release);
77 enum symbol_type sym_get_type(struct symbol *sym)
79 enum symbol_type type = sym->type;
81 if (type == S_TRISTATE) {
82 if (sym_is_choice_value(sym) && sym->visible == yes)
84 /* tristate always enabled */
86 else if (modules_val == no)
93 const char *sym_type_name(enum symbol_type type)
114 struct property *sym_get_choice_prop(struct symbol *sym)
116 struct property *prop;
118 for_all_choices(sym, prop)
123 struct property *sym_get_default_prop(struct symbol *sym)
125 struct property *prop;
127 for_all_defaults(sym, prop) {
128 prop->visible.tri = expr_calc_value(prop->visible.expr);
129 if (prop->visible.tri != no)
135 struct property *sym_get_range_prop(struct symbol *sym)
137 struct property *prop;
139 for_all_properties(sym, prop, P_RANGE) {
140 prop->visible.tri = expr_calc_value(prop->visible.expr);
141 if (prop->visible.tri != no)
147 static int sym_get_range_val(struct symbol *sym, int base)
160 return strtol(sym->curr.val, NULL, base);
163 static void sym_validate_range(struct symbol *sym)
165 struct property *prop;
179 prop = sym_get_range_prop(sym);
182 val = strtol(sym->curr.val, NULL, base);
183 val2 = sym_get_range_val(prop->expr->left.sym, base);
185 val2 = sym_get_range_val(prop->expr->right.sym, base);
189 if (sym->type == S_INT)
190 sprintf(str, "%d", val2);
192 sprintf(str, "0x%x", val2);
193 sym->curr.val = strdup(str);
196 static void sym_calc_visibility(struct symbol *sym)
198 struct property *prop;
202 /* any prompt visible? */
204 for_all_prompts(sym, prop) {
205 prop->visible.tri = expr_calc_value(prop->visible.expr);
206 tri = E_OR(tri, prop->visible.tri);
208 if (tri == mod && (sym->type != S_TRISTATE))
210 if (sym->rev_dep_inv.expr && (expr_calc_value(sym->rev_dep_inv.expr) == yes)) {
214 if (sym->visible != tri) {
216 sym_set_changed(sym);
218 if (sym_is_choice_value(sym) || deselected)
221 if (sym->rev_dep.expr)
222 tri = expr_calc_value(sym->rev_dep.expr);
223 if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
225 if (sym->rev_dep.tri != tri) {
226 sym->rev_dep.tri = tri;
227 sym_set_changed(sym);
231 static struct symbol *sym_calc_choice(struct symbol *sym)
233 struct symbol *def_sym;
234 struct property *prop;
237 /* is the user choice visible? */
238 def_sym = sym->user.val;
240 sym_calc_visibility(def_sym);
241 if (def_sym->visible != no)
245 /* any of the defaults visible? */
246 for_all_defaults(sym, prop) {
247 prop->visible.tri = expr_calc_value(prop->visible.expr);
248 if (prop->visible.tri == no)
250 def_sym = prop_get_symbol(prop);
251 sym_calc_visibility(def_sym);
252 if (def_sym->visible != no)
256 /* just get the first visible value */
257 prop = sym_get_choice_prop(sym);
258 for (e = prop->expr; e; e = e->left.expr) {
259 def_sym = e->right.sym;
260 sym_calc_visibility(def_sym);
261 if (def_sym->visible != no)
265 /* no choice? reset tristate value */
270 void sym_calc_value(struct symbol *sym)
272 struct symbol_value newval, oldval;
273 struct property *prop;
279 if (sym->flags & SYMBOL_VALID)
281 sym->flags |= SYMBOL_VALID;
289 newval = symbol_empty.curr;
293 newval = symbol_no.curr;
296 sym->curr.val = sym->name;
300 if (!sym_is_choice_value(sym))
301 sym->flags &= ~SYMBOL_WRITE;
303 sym_calc_visibility(sym);
305 /* set default if recursively called */
308 switch (sym_get_type(sym)) {
311 if (sym_is_choice_value(sym) && sym->visible == yes) {
312 prop = sym_get_choice_prop(sym);
313 newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;
314 } else if (sym->rev_dep_inv.expr && (expr_calc_value(sym->rev_dep_inv.expr) == yes)) {
316 } else if (E_OR(sym->visible, sym->rev_dep.tri) != no) {
317 sym->flags |= SYMBOL_WRITE;
318 if (sym_has_value(sym))
319 newval.tri = sym->user.tri;
320 else if (!sym_is_choice(sym)) {
321 prop = sym_get_default_prop(sym);
323 newval.tri = expr_calc_value(prop->expr);
325 newval.tri = E_OR(E_AND(newval.tri, sym->visible), sym->rev_dep.tri);
326 } else if (!sym_is_choice(sym)) {
327 prop = sym_get_default_prop(sym);
329 sym->flags |= SYMBOL_WRITE;
330 newval.tri = expr_calc_value(prop->expr);
333 if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)
339 if (sym->visible != no) {
340 sym->flags |= SYMBOL_WRITE;
341 if (sym_has_value(sym)) {
342 newval.val = sym->user.val;
346 prop = sym_get_default_prop(sym);
348 struct symbol *ds = prop_get_symbol(prop);
350 sym->flags |= SYMBOL_WRITE;
352 newval.val = ds->curr.val;
361 if (sym_is_choice(sym) && newval.tri == yes)
362 sym->curr.val = sym_calc_choice(sym);
363 sym_validate_range(sym);
365 if (memcmp(&oldval, &sym->curr, sizeof(oldval)))
366 sym_set_changed(sym);
368 if (modules_sym == sym)
369 modules_val = modules_sym->curr.tri;
371 if (sym_is_choice(sym)) {
372 int flags = sym->flags & (SYMBOL_CHANGED | SYMBOL_WRITE);
373 prop = sym_get_choice_prop(sym);
374 for (e = prop->expr; e; e = e->left.expr) {
375 e->right.sym->flags |= flags;
376 if (flags & SYMBOL_CHANGED)
377 sym_set_changed(e->right.sym);
382 void sym_clear_all_valid(void)
387 for_all_symbols(i, sym)
388 sym->flags &= ~SYMBOL_VALID;
391 sym_calc_value(modules_sym);
394 void sym_set_changed(struct symbol *sym)
396 struct property *prop;
398 sym->flags |= SYMBOL_CHANGED;
399 for (prop = sym->prop; prop; prop = prop->next) {
401 prop->menu->flags |= MENU_CHANGED;
405 void sym_set_all_changed(void)
410 for_all_symbols(i, sym)
411 sym_set_changed(sym);
414 bool sym_tristate_within_range(struct symbol *sym, tristate val)
416 int type = sym_get_type(sym);
418 if (sym->visible == no)
421 if (type != S_BOOLEAN && type != S_TRISTATE)
424 if (type == S_BOOLEAN && val == mod)
426 if (sym->visible <= sym->rev_dep.tri)
428 if (sym_is_choice_value(sym) && sym->visible == yes)
430 return val >= sym->rev_dep.tri && val <= sym->visible;
433 bool sym_set_tristate_value(struct symbol *sym, tristate val)
435 tristate oldval = sym_get_tristate_value(sym);
437 if (oldval != val && !sym_tristate_within_range(sym, val))
440 if (sym->flags & SYMBOL_NEW) {
441 sym->flags &= ~SYMBOL_NEW;
442 sym_set_changed(sym);
445 * setting a choice value also resets the new flag of the choice
446 * symbol and all other choice values.
448 if (sym_is_choice_value(sym) && val == yes) {
449 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
450 struct property *prop;
454 cs->flags &= ~SYMBOL_NEW;
455 prop = sym_get_choice_prop(cs);
456 for (e = prop->expr; e; e = e->left.expr) {
457 if (e->right.sym->visible != no)
458 e->right.sym->flags &= ~SYMBOL_NEW;
464 sym_clear_all_valid();
465 if (sym == modules_sym)
466 sym_set_all_changed();
472 tristate sym_toggle_tristate_value(struct symbol *sym)
474 tristate oldval, newval;
476 oldval = newval = sym_get_tristate_value(sym);
489 if (sym_set_tristate_value(sym, newval))
491 } while (oldval != newval);
495 bool sym_string_valid(struct symbol *sym, const char *str)
508 if (ch == '0' && *str != 0)
510 while ((ch = *str++)) {
516 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
522 } while ((ch = *str++));
538 bool sym_string_within_range(struct symbol *sym, const char *str)
540 struct property *prop;
545 return sym_string_valid(sym, str);
547 if (!sym_string_valid(sym, str))
549 prop = sym_get_range_prop(sym);
552 val = strtol(str, NULL, 10);
553 return val >= sym_get_range_val(prop->expr->left.sym, 10) &&
554 val <= sym_get_range_val(prop->expr->right.sym, 10);
556 if (!sym_string_valid(sym, str))
558 prop = sym_get_range_prop(sym);
561 val = strtol(str, NULL, 16);
562 return val >= sym_get_range_val(prop->expr->left.sym, 16) &&
563 val <= sym_get_range_val(prop->expr->right.sym, 16);
568 return sym_tristate_within_range(sym, yes);
570 return sym_tristate_within_range(sym, mod);
572 return sym_tristate_within_range(sym, no);
580 bool sym_set_string_value(struct symbol *sym, const char *newval)
591 return sym_set_tristate_value(sym, yes);
593 return sym_set_tristate_value(sym, mod);
595 return sym_set_tristate_value(sym, no);
602 if (!sym_string_within_range(sym, newval))
605 if (sym->flags & SYMBOL_NEW) {
606 sym->flags &= ~SYMBOL_NEW;
607 sym_set_changed(sym);
610 oldval = sym->user.val;
611 size = strlen(newval) + 1;
612 if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
614 sym->user.val = val = malloc(size);
617 } else if (!oldval || strcmp(oldval, newval))
618 sym->user.val = val = malloc(size);
623 free((void *)oldval);
624 sym_clear_all_valid();
629 const char *sym_get_string_value(struct symbol *sym)
636 val = sym_get_tristate_value(sym);
649 return (const char *)sym->curr.val;
652 bool sym_is_changable(struct symbol *sym)
654 return sym->visible > sym->rev_dep.tri;
657 struct symbol *sym_lookup(const char *name, int isconst)
659 struct symbol *symbol;
665 if (name[0] && !name[1]) {
667 case 'y': return &symbol_yes;
668 case 'm': return &symbol_mod;
669 case 'n': return &symbol_no;
672 for (ptr = name; *ptr; ptr++)
676 for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
677 if (!strcmp(symbol->name, name)) {
678 if ((isconst && symbol->flags & SYMBOL_CONST) ||
679 (!isconst && !(symbol->flags & SYMBOL_CONST)))
683 new_name = strdup(name);
689 symbol = malloc(sizeof(*symbol));
690 memset(symbol, 0, sizeof(*symbol));
691 symbol->name = new_name;
692 symbol->type = S_UNKNOWN;
693 symbol->flags = SYMBOL_NEW;
695 symbol->flags |= SYMBOL_CONST;
697 symbol->next = symbol_hash[hash];
698 symbol_hash[hash] = symbol;
703 struct symbol *sym_find(const char *name)
705 struct symbol *symbol = NULL;
712 if (name[0] && !name[1]) {
714 case 'y': return &symbol_yes;
715 case 'm': return &symbol_mod;
716 case 'n': return &symbol_no;
719 for (ptr = name; *ptr; ptr++)
723 for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
724 if (!strcmp(symbol->name, name) &&
725 !(symbol->flags & SYMBOL_CONST))
732 struct symbol **sym_re_search(const char *pattern)
734 struct symbol *sym, **sym_arr = NULL;
740 if (strlen(pattern) == 0)
742 if (regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB|REG_ICASE))
745 for_all_symbols(i, sym) {
746 if (sym->flags & SYMBOL_CONST || !sym->name)
748 if (regexec(&re, sym->name, 0, NULL, 0))
750 if (cnt + 1 >= size) {
753 sym_arr = realloc(sym_arr, size * sizeof(struct symbol *));
759 sym_arr[cnt++] = sym;
769 struct symbol *sym_check_deps(struct symbol *sym);
771 static struct symbol *sym_check_expr_deps(struct expr *e)
780 sym = sym_check_expr_deps(e->left.expr);
783 return sym_check_expr_deps(e->right.expr);
785 return sym_check_expr_deps(e->left.expr);
788 sym = sym_check_deps(e->left.sym);
791 return sym_check_deps(e->right.sym);
793 return sym_check_deps(e->left.sym);
797 printf("Oops! How to check %d?\n", e->type);
801 struct symbol *sym_check_deps(struct symbol *sym)
804 struct property *prop;
806 if (sym->flags & SYMBOL_CHECK) {
807 printf("Warning! Found recursive dependency: %s", sym->name);
810 if (sym->flags & SYMBOL_CHECKED)
813 sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
814 sym2 = sym_check_expr_deps(sym->rev_dep.expr);
818 for (prop = sym->prop; prop; prop = prop->next) {
819 if (prop->type == P_CHOICE || prop->type == P_SELECT || prop->type == P_DESELECT)
821 sym2 = sym_check_expr_deps(prop->visible.expr);
824 if (prop->type != P_DEFAULT || sym_is_choice(sym))
826 sym2 = sym_check_expr_deps(prop->expr);
832 printf(" %s", sym->name);
838 sym->flags &= ~SYMBOL_CHECK;
842 struct property *prop_alloc(enum prop_type type, struct symbol *sym)
844 struct property *prop;
845 struct property **propp;
847 prop = malloc(sizeof(*prop));
848 memset(prop, 0, sizeof(*prop));
851 prop->file = current_file;
852 prop->lineno = zconf_lineno();
854 /* append property to the prop list of symbol */
856 for (propp = &sym->prop; *propp; propp = &(*propp)->next)
864 struct symbol *prop_get_symbol(struct property *prop)
866 if (prop->expr && (prop->expr->type == E_SYMBOL ||
867 prop->expr->type == E_CHOICE))
868 return prop->expr->left.sym;
872 const char *prop_get_type_name(enum prop_type type)