2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
19 #include "../lcp_data.h"
28 typedef enum tristate {
33 E_NONE, E_OR, E_AND, E_NOT,
34 E_EQUAL, E_UNEQUAL, E_LTH, E_LEQ, E_GTH, E_GEQ,
35 E_LIST, E_SYMBOL, E_RANGE
45 union expr_data left, right;
50 #define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
51 #define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
52 #define EXPR_NOT(dep) (2-(dep))
54 #define expr_list_for_each_sym(l, e, s) \
55 for (e = (l); e && (s = e->right.sym); e = e->left.expr)
68 S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
71 /* enum values are used as index to symbol.def[] */
73 S_DEF_USER, /* main user value */
74 S_DEF_AUTO, /* values read from auto.conf */
75 S_DEF_DEF3, /* Reserved for UI usage */
76 S_DEF_DEF4, /* Reserved for UI usage */
83 enum symbol_type type;
84 struct symbol_value curr;
85 struct symbol_value def[S_DEF_COUNT];
88 struct property *prop;
89 struct expr_value dir_dep;
90 struct expr_value rev_dep;
92 struct lcp_symbol *lcp;
95 #define for_all_symbols(i, sym) for (i = 0; i < SYMBOL_HASHSIZE; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER)
97 #define SYMBOL_CONST 0x0001 /* symbol is const */
98 #define SYMBOL_CHECK 0x0008 /* used during dependency checking */
99 #define SYMBOL_CHOICE 0x0010 /* start of a choice block (null name) */
100 #define SYMBOL_CHOICEVAL 0x0020 /* used as a value in a choice block */
101 #define SYMBOL_VALID 0x0080 /* set when symbol.curr is calculated */
102 #define SYMBOL_OPTIONAL 0x0100 /* choice is optional - values can be 'n' */
103 #define SYMBOL_WRITE 0x0200 /* write symbol to file (KCONFIG_CONFIG) */
104 #define SYMBOL_CHANGED 0x0400 /* ? */
105 #define SYMBOL_AUTO 0x1000 /* value from environment variable */
106 #define SYMBOL_CHECKED 0x2000 /* used during dependency checking */
107 #define SYMBOL_WARNED 0x8000 /* warning has been issued */
109 /* Set when symbol.def[] is used */
110 #define SYMBOL_DEF 0x10000 /* First bit of SYMBOL_DEF */
111 #define SYMBOL_DEF_USER 0x10000 /* symbol.def[S_DEF_USER] is valid */
112 #define SYMBOL_DEF_AUTO 0x20000 /* symbol.def[S_DEF_AUTO] is valid */
113 #define SYMBOL_DEF3 0x40000 /* symbol.def[S_DEF_3] is valid */
114 #define SYMBOL_DEF4 0x80000 /* symbol.def[S_DEF_4] is valid */
116 /* choice values need to be set before calculating this symbol value */
117 #define SYMBOL_NEED_SET_CHOICE_VALUES 0x100000
119 /* Set symbol to y if allnoconfig; used for symbols that hide others */
120 #define SYMBOL_ALLNOCONFIG_Y 0x200000
122 #define SYMBOL_MAXLENGTH 256
123 #define SYMBOL_HASHSIZE 9973
125 /* A property represent the config options that can be associated
126 * with a config "symbol".
130 * prompt "foo prompt"
138 P_PROMPT, /* prompt "foo prompt" or "BAZ Value" */
139 P_COMMENT, /* text associated with a comment */
140 P_MENU, /* prompt associated with a menuconfig option */
141 P_DEFAULT, /* default y */
142 P_CHOICE, /* choice value */
143 P_SELECT, /* select BAR */
144 P_RANGE, /* range 7..100 (for a symbol) */
145 P_ENV, /* value from environment variable */
146 P_SYMBOL, /* where a symbol is defined */
150 struct property *next; /* next property - null if last */
151 struct symbol *sym; /* the symbol for which the property is associated */
152 enum prop_type type; /* type of property */
153 const char *text; /* the prompt value - P_PROMPT, P_MENU, P_COMMENT */
154 struct expr_value visible;
155 struct expr *expr; /* the optional conditional part of the property */
156 struct menu *menu; /* the menu the property are associated with
157 * valid for: P_SELECT, P_RANGE, P_CHOICE,
158 * P_PROMPT, P_DEFAULT, P_MENU, P_COMMENT */
159 struct file *file; /* what file was this property defined */
160 int lineno; /* what lineno was this property defined */
163 #define for_all_properties(sym, st, tok) \
164 for (st = sym->prop; st; st = st->next) \
165 if (st->type == (tok))
166 #define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
167 #define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
168 #define for_all_prompts(sym, st) \
169 for (st = sym->prop; st; st = st->next) \
177 struct property *prompt;
178 struct expr *visibility;
187 #define MENU_CHANGED 0x0001
188 #define MENU_ROOT 0x0002
191 struct list_head entries;
199 extern struct file *file_list;
200 extern struct file *current_file;
201 struct file *lookup_file(const char *name);
203 extern struct symbol symbol_yes, symbol_no, symbol_mod;
204 extern struct symbol *modules_sym;
205 extern struct symbol *sym_defconfig_list;
207 struct expr *expr_alloc_symbol(struct symbol *sym);
208 struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
209 struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
210 struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
211 struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
212 struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
213 struct expr *expr_copy(const struct expr *org);
214 void expr_free(struct expr *e);
215 void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
216 tristate expr_calc_value(struct expr *e);
217 struct expr *expr_trans_bool(struct expr *e);
218 struct expr *expr_eliminate_dups(struct expr *e);
219 struct expr *expr_transform(struct expr *e);
220 int expr_contains_symbol(struct expr *dep, struct symbol *sym);
221 bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
222 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
223 struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2);
225 void expr_fprint(struct expr *e, FILE *out);
226 struct gstr; /* forward */
227 void expr_gstr_print(struct expr *e, struct gstr *gs);
229 static inline int expr_is_yes(struct expr *e)
231 return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
234 static inline int expr_is_no(struct expr *e)
236 return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);