2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
27 typedef enum tristate
{
32 E_NONE
, E_OR
, E_AND
, E_NOT
, E_EQUAL
, E_UNEQUAL
, E_LIST
, E_SYMBOL
, E_RANGE
42 union expr_data left
, right
;
45 #define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
46 #define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
47 #define EXPR_NOT(dep) (2-(dep))
49 #define expr_list_for_each_sym(l, e, s) \
50 for (e = (l); e && (s = e->right.sym); e = e->left.expr)
57 struct expr_select_value
{
61 struct expr_select_value
*next
;
70 S_UNKNOWN
, S_BOOLEAN
, S_TRISTATE
, S_INT
, S_HEX
, S_STRING
, S_OTHER
73 /* enum values are used as index to symbol.def[] */
75 S_DEF_USER
, /* main user value */
76 S_DEF_AUTO
, /* values read from auto.conf */
77 S_DEF_DEF3
, /* Reserved for UI usage */
78 S_DEF_DEF4
, /* Reserved for UI usage */
85 enum symbol_type type
;
86 struct symbol_value curr
;
87 struct symbol_value def
[S_DEF_COUNT
];
90 struct property
*prop
;
91 struct expr_value dir_dep
;
92 struct expr_value rev_dep
;
93 struct expr_select_value
*val_dep
;
96 #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)
98 #define SYMBOL_CONST 0x0001 /* symbol is const */
99 #define SYMBOL_CHECK 0x0008 /* used during dependency checking */
100 #define SYMBOL_CHOICE 0x0010 /* start of a choice block (null name) */
101 #define SYMBOL_CHOICEVAL 0x0020 /* used as a value in a choice block */
102 #define SYMBOL_VALID 0x0080 /* set when symbol.curr is calculated */
103 #define SYMBOL_OPTIONAL 0x0100 /* choice is optional - values can be 'n' */
104 #define SYMBOL_WRITE 0x0200 /* write symbol to file (KCONFIG_CONFIG) */
105 #define SYMBOL_CHANGED 0x0400 /* ? */
106 #define SYMBOL_AUTO 0x1000 /* value from environment variable */
107 #define SYMBOL_CHECKED 0x2000 /* used during dependency checking */
108 #define SYMBOL_WARNED 0x8000 /* warning has been issued */
110 /* Set when symbol.def[] is used */
111 #define SYMBOL_DEF 0x10000 /* First bit of SYMBOL_DEF */
112 #define SYMBOL_DEF_USER 0x10000 /* symbol.def[S_DEF_USER] is valid */
113 #define SYMBOL_DEF_AUTO 0x20000 /* symbol.def[S_DEF_AUTO] is valid */
114 #define SYMBOL_DEF3 0x40000 /* symbol.def[S_DEF_3] is valid */
115 #define SYMBOL_DEF4 0x80000 /* symbol.def[S_DEF_4] is valid */
117 /* choice values need to be set before calculating this symbol value */
118 #define SYMBOL_NEED_SET_CHOICE_VALUES 0x100000
120 /* Set symbol to y if allnoconfig; used for symbols that hide others */
121 #define SYMBOL_ALLNOCONFIG_Y 0x200000
123 #define SYMBOL_MAXLENGTH 256
124 #define SYMBOL_HASHSIZE 9973
126 /* A property represent the config options that can be associated
127 * with a config "symbol".
131 * prompt "foo prompt"
139 P_PROMPT
, /* prompt "foo prompt" or "BAZ Value" */
140 P_COMMENT
, /* text associated with a comment */
141 P_MENU
, /* prompt associated with a menuconfig option */
142 P_DEFAULT
, /* default y */
143 P_CHOICE
, /* choice value */
144 P_SELECT
, /* select BAR */
145 P_RANGE
, /* range 7..100 (for a symbol) */
146 P_ENV
, /* value from environment variable */
147 P_SYMBOL
, /* where a symbol is defined */
151 struct property
*next
; /* next property - null if last */
152 struct symbol
*sym
; /* the symbol for which the property is associated */
153 enum prop_type type
; /* type of property */
154 const char *text
; /* the prompt value - P_PROMPT, P_MENU, P_COMMENT */
155 struct expr_value visible
;
156 struct expr
*expr
; /* the optional conditional part of the property */
157 struct menu
*menu
; /* the menu the property are associated with
158 * valid for: P_SELECT, P_RANGE, P_CHOICE,
159 * P_PROMPT, P_DEFAULT, P_MENU, P_COMMENT */
160 struct file
*file
; /* what file was this property defined */
161 int lineno
; /* what lineno was this property defined */
162 struct expr
*value
; /* the optional P_SELECT value */
165 #define for_all_properties(sym, st, tok) \
166 for (st = sym->prop; st; st = st->next) \
167 if (st->type == (tok))
168 #define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
169 #define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
170 #define for_all_prompts(sym, st) \
171 for (st = sym->prop; st; st = st->next) \
179 struct property
*prompt
;
180 struct expr
*visibility
;
189 #define MENU_CHANGED 0x0001
190 #define MENU_ROOT 0x0002
193 struct list_head entries
;
201 extern struct file
*file_list
;
202 extern struct file
*current_file
;
203 struct file
*lookup_file(const char *name
);
205 extern struct symbol symbol_yes
, symbol_no
, symbol_mod
;
206 extern struct symbol
*modules_sym
;
207 extern struct symbol
*sym_defconfig_list
;
209 struct expr
*expr_alloc_symbol(struct symbol
*sym
);
210 struct expr
*expr_alloc_one(enum expr_type type
, struct expr
*ce
);
211 struct expr
*expr_alloc_two(enum expr_type type
, struct expr
*e1
, struct expr
*e2
);
212 struct expr
*expr_alloc_comp(enum expr_type type
, struct symbol
*s1
, struct symbol
*s2
);
213 struct expr
*expr_alloc_and(struct expr
*e1
, struct expr
*e2
);
214 struct expr
*expr_alloc_or(struct expr
*e1
, struct expr
*e2
);
215 struct expr
*expr_copy(const struct expr
*org
);
216 void expr_free(struct expr
*e
);
217 int expr_eq(struct expr
*e1
, struct expr
*e2
);
218 void expr_eliminate_eq(struct expr
**ep1
, struct expr
**ep2
);
219 tristate
expr_calc_value(struct expr
*e
);
220 struct expr
*expr_eliminate_yn(struct expr
*e
);
221 struct expr
*expr_trans_bool(struct expr
*e
);
222 struct expr
*expr_eliminate_dups(struct expr
*e
);
223 struct expr
*expr_transform(struct expr
*e
);
224 int expr_contains_symbol(struct expr
*dep
, struct symbol
*sym
);
225 bool expr_depends_symbol(struct expr
*dep
, struct symbol
*sym
);
226 struct expr
*expr_extract_eq_and(struct expr
**ep1
, struct expr
**ep2
);
227 struct expr
*expr_extract_eq_or(struct expr
**ep1
, struct expr
**ep2
);
228 void expr_extract_eq(enum expr_type type
, struct expr
**ep
, struct expr
**ep1
, struct expr
**ep2
);
229 struct expr
*expr_trans_compare(struct expr
*e
, enum expr_type type
, struct symbol
*sym
);
230 struct expr
*expr_simplify_unmet_dep(struct expr
*e1
, struct expr
*e2
);
232 void expr_fprint(struct expr
*e
, FILE *out
);
233 struct gstr
; /* forward */
234 void expr_gstr_print(struct expr
*e
, struct gstr
*gs
);
236 static inline int expr_is_yes(struct expr
*e
)
238 return !e
|| (e
->type
== E_SYMBOL
&& e
->left
.sym
== &symbol_yes
);
241 static inline int expr_is_no(struct expr
*e
)
243 return e
&& (e
->type
== E_SYMBOL
&& e
->left
.sym
== &symbol_no
);