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The SYMBOL_VALID bit is set in * 'flags' when this is up to date. Note that this value might differ * from the user value set in e.g. a .config file, due to visibility. */ struct symbol_value curr; /* * Values for the symbol provided from outside. def[S_DEF_USER] holds * the .config value. */ struct symbol_value def[S_DEF_COUNT]; /* * An upper bound on the tristate value the user can set for the symbol * if it is a boolean or tristate. Calculated from prompt dependencies, * which also inherit dependencies from enclosing menus, choices, and * ifs. If 'n', the user value will be ignored. * * Symbols lacking prompts always have visibility 'n'. */ tristate visible; /* SYMBOL_* flags */ int flags; /* List of properties. See prop_type. */ struct property *prop; /* Dependencies from enclosing menus, choices, and ifs */ struct expr_value dir_dep; /* Reverse dependencies through being selected by other symbols */ struct expr_value rev_dep; /* * "Weak" reverse dependencies through being implied by other symbols */ struct expr_value implied; }; #define for_all_symbols(i, sym) for (i = 0; i < SYMBOL_HASHSIZE; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) #define SYMBOL_CONST 0x0001 /* symbol is const */ #define SYMBOL_CHECK 0x0008 /* used during dependency checking */ #define SYMBOL_CHOICE 0x0010 /* start of a choice block (null name) */ #define SYMBOL_CHOICEVAL 0x0020 /* used as a value in a choice block */ #define SYMBOL_VALID 0x0080 /* set when symbol.curr is calculated */ #define SYMBOL_OPTIONAL 0x0100 /* choice is optional - values can be 'n' */ #define SYMBOL_WRITE 0x0200 /* write symbol to file (KCONFIG_CONFIG) */ #define SYMBOL_CHANGED 0x0400 /* ? */ #define SYMBOL_WRITTEN 0x0800 /* track info to avoid double-write to .config */ #define SYMBOL_NO_WRITE 0x1000 /* Symbol for internal use only; it will not be written */ #define SYMBOL_CHECKED 0x2000 /* used during dependency checking */ #define SYMBOL_WARNED 0x8000 /* warning has been issued */ /* Set when symbol.def[] is used */ #define SYMBOL_DEF 0x10000 /* First bit of SYMBOL_DEF */ #define SYMBOL_DEF_USER 0x10000 /* symbol.def[S_DEF_USER] is valid */ #define SYMBOL_DEF_AUTO 0x20000 /* symbol.def[S_DEF_AUTO] is valid */ #define SYMBOL_DEF3 0x40000 /* symbol.def[S_DEF_3] is valid */ #define SYMBOL_DEF4 0x80000 /* symbol.def[S_DEF_4] is valid */ /* choice values need to be set before calculating this symbol value */ #define SYMBOL_NEED_SET_CHOICE_VALUES 0x100000 /* Set symbol to y if allnoconfig; used for symbols that hide others */ #define SYMBOL_ALLNOCONFIG_Y 0x200000 #define SYMBOL_MAXLENGTH 256 #define SYMBOL_HASHSIZE 9973 /* A property represent the config options that can be associated * with a config "symbol". * Sample: * config FOO * default y * prompt "foo prompt" * select BAR * config BAZ * int "BAZ Value" * range 1..255 * * Please, also check parser.y:print_symbol() when modifying the * list of property types! */ enum prop_type { P_UNKNOWN, P_PROMPT, /* prompt "foo prompt" or "BAZ Value" */ P_COMMENT, /* text associated with a comment */ P_MENU, /* prompt associated with a menu or menuconfig symbol */ P_DEFAULT, /* default y */ P_CHOICE, /* choice value */ P_SELECT, /* select BAR */ P_IMPLY, /* imply BAR */ P_RANGE, /* range 7..100 (for a symbol) */ P_SYMBOL, /* where a symbol is defined */ }; struct property { struct property *next; /* next property - null if last */ struct symbol *sym; /* the symbol for which the property is associated */ enum prop_type type; /* type of property */ const char *text; /* the prompt value - P_PROMPT, P_MENU, P_COMMENT */ struct expr_value visible; struct expr *expr; /* the optional conditional part of the property */ struct menu *menu; /* the menu the property are associated with * valid for: P_SELECT, P_RANGE, P_CHOICE, * P_PROMPT, P_DEFAULT, P_MENU, P_COMMENT */ struct file *file; /* what file was this property defined */ int lineno; /* what lineno was this property defined */ }; #define for_all_properties(sym, st, tok) \ for (st = sym->prop; st; st = st->next) \ if (st->type == (tok)) #define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT) #define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE) #define for_all_prompts(sym, st) \ for (st = sym->prop; st; st = st->next) \ if (st->text) /* * Represents a node in the menu tree, as seen in e.g. menuconfig (though used * for all front ends). Each symbol, menu, etc. defined in the Kconfig files * gets a node. A symbol defined in multiple locations gets one node at each * location. */ struct menu { /* The next menu node at the same level */ struct menu *next; /* The parent menu node, corresponding to e.g. a menu or choice */ struct menu *parent; /* The first child menu node, for e.g. menus and choices */ struct menu *list; /* * The symbol associated with the menu node. Choices are implemented as * a special kind of symbol. NULL for menus, comments, and ifs. */ struct symbol *sym; /* * The prompt associated with the node. This holds the prompt for a * symbol as well as the text for a menu or comment, along with the * type (P_PROMPT, P_MENU, etc.) */ struct property *prompt; /* * 'visible if' dependencies. If more than one is given, they will be * ANDed together. */ struct expr *visibility; /* * Ordinary dependencies from e.g. 'depends on' and 'if', ANDed * together */ struct expr *dep; /* MENU_* flags */ unsigned int flags; /* Any help text associated with the node */ char *help; /* The location where the menu node appears in the Kconfig files */ struct file *file; int lineno; /* For use by front ends that need to store auxiliary data */ void *data; }; /* * Set on a menu node when the corresponding symbol changes state in some way. * Can be checked by front ends. */ #define MENU_CHANGED 0x0001 #define MENU_ROOT 0x0002 struct jump_key { struct list_head entries; size_t offset; struct menu *target; int index; }; #define JUMP_NB 9 extern struct file *file_list; extern struct file *current_file; struct file *lookup_file(const char *name); extern struct symbol symbol_yes, symbol_no, symbol_mod; extern struct symbol *modules_sym; extern struct symbol *sym_defconfig_list; extern int cdebug; struct expr *expr_alloc_symbol(struct symbol *sym); struct expr *expr_alloc_one(enum expr_type type, struct expr *ce); struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2); struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2); struct expr *expr_alloc_and(struct expr *e1, struct expr *e2); struct expr *expr_alloc_or(struct expr *e1, struct expr *e2); struct expr *expr_copy(const struct expr *org); void expr_free(struct expr *e); void expr_eliminate_eq(struct expr **ep1, struct expr **ep2); tristate expr_calc_value(struct expr *e); struct expr *expr_eliminate_dups(struct expr *e); struct expr *expr_transform(struct expr *e); int expr_contains_symbol(struct expr *dep, struct symbol *sym); bool expr_depends_symbol(struct expr *dep, struct symbol *sym); struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym); void expr_fprint(struct expr *e, FILE *out); struct gstr; /* forward */ void expr_gstr_print(struct expr *e, struct gstr *gs); void expr_gstr_print_revdep(struct expr *e, struct gstr *gs, tristate pr_type, const char *title); static inline int expr_is_yes(struct expr *e) { return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes); } static inline int expr_is_no(struct expr *e) { return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no); } #ifdef __cplusplus } #endif #endif /* EXPR_H */