Now that kconfig can load multiple configurations, it becomes simple to integrate the split config step, by simply comparing the new .config file with the old auto.conf (and then saving the new auto.conf). A nice side effect is that this saves a bit of disk space and cache, as no data needs to be read from or saved into the splitted config files anymore (e.g. include/config is now 648KB instead of 5.2MB). Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
202 lines
4.9 KiB
C
202 lines
4.9 KiB
C
/*
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* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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* Released under the terms of the GNU GPL v2.0.
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*/
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#ifndef EXPR_H
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#define EXPR_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdio.h>
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#ifndef __cplusplus
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#include <stdbool.h>
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#endif
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struct file {
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struct file *next;
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struct file *parent;
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char *name;
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int lineno;
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int flags;
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};
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#define FILE_BUSY 0x0001
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#define FILE_SCANNED 0x0002
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#define FILE_PRINTED 0x0004
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typedef enum tristate {
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no, mod, yes
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} tristate;
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enum expr_type {
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E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_CHOICE, E_SYMBOL, E_RANGE
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};
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union expr_data {
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struct expr *expr;
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struct symbol *sym;
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};
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struct expr {
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enum expr_type type;
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union expr_data left, right;
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};
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#define E_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
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#define E_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
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#define E_NOT(dep) (2-(dep))
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struct expr_value {
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struct expr *expr;
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tristate tri;
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};
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struct symbol_value {
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void *val;
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tristate tri;
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};
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enum symbol_type {
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S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
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};
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enum {
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S_DEF_USER, /* main user value */
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S_DEF_AUTO,
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};
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struct symbol {
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struct symbol *next;
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char *name;
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char *help;
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enum symbol_type type;
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struct symbol_value curr;
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struct symbol_value def[4];
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tristate visible;
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int flags;
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struct property *prop;
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struct expr *dep, *dep2;
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struct expr_value rev_dep;
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};
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#define for_all_symbols(i, sym) for (i = 0; i < 257; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER)
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#define SYMBOL_CONST 0x0001
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#define SYMBOL_CHECK 0x0008
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#define SYMBOL_CHOICE 0x0010
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#define SYMBOL_CHOICEVAL 0x0020
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#define SYMBOL_PRINTED 0x0040
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#define SYMBOL_VALID 0x0080
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#define SYMBOL_OPTIONAL 0x0100
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#define SYMBOL_WRITE 0x0200
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#define SYMBOL_CHANGED 0x0400
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#define SYMBOL_AUTO 0x1000
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#define SYMBOL_CHECKED 0x2000
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#define SYMBOL_WARNED 0x8000
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#define SYMBOL_DEF 0x10000
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#define SYMBOL_DEF_USER 0x10000
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#define SYMBOL_DEF_AUTO 0x20000
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#define SYMBOL_DEF3 0x40000
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#define SYMBOL_DEF4 0x80000
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#define SYMBOL_MAXLENGTH 256
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#define SYMBOL_HASHSIZE 257
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#define SYMBOL_HASHMASK 0xff
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enum prop_type {
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P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE, P_SELECT, P_RANGE
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};
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struct property {
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struct property *next;
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struct symbol *sym;
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enum prop_type type;
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const char *text;
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struct expr_value visible;
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struct expr *expr;
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struct menu *menu;
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struct file *file;
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int lineno;
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};
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#define for_all_properties(sym, st, tok) \
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for (st = sym->prop; st; st = st->next) \
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if (st->type == (tok))
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#define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
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#define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
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#define for_all_prompts(sym, st) \
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for (st = sym->prop; st; st = st->next) \
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if (st->text)
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struct menu {
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struct menu *next;
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struct menu *parent;
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struct menu *list;
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struct symbol *sym;
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struct property *prompt;
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struct expr *dep;
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unsigned int flags;
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//char *help;
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struct file *file;
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int lineno;
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void *data;
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};
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#define MENU_CHANGED 0x0001
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#define MENU_ROOT 0x0002
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#ifndef SWIG
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extern struct file *file_list;
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extern struct file *current_file;
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struct file *lookup_file(const char *name);
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extern struct symbol symbol_yes, symbol_no, symbol_mod;
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extern struct symbol *modules_sym;
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extern int cdebug;
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struct expr *expr_alloc_symbol(struct symbol *sym);
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struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
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struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
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struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
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struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
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struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
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struct expr *expr_copy(struct expr *org);
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void expr_free(struct expr *e);
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int expr_eq(struct expr *e1, struct expr *e2);
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void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
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tristate expr_calc_value(struct expr *e);
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struct expr *expr_eliminate_yn(struct expr *e);
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struct expr *expr_trans_bool(struct expr *e);
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struct expr *expr_eliminate_dups(struct expr *e);
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struct expr *expr_transform(struct expr *e);
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int expr_contains_symbol(struct expr *dep, struct symbol *sym);
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bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
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struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
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struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
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void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
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struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
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void expr_fprint(struct expr *e, FILE *out);
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struct gstr; /* forward */
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void expr_gstr_print(struct expr *e, struct gstr *gs);
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static inline int expr_is_yes(struct expr *e)
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{
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return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
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}
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static inline int expr_is_no(struct expr *e)
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{
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return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);
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}
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* EXPR_H */
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