/* * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> * Released under the terms of the GNU GPL v2.0. */ #ifndef EXPR_H#define EXPR_H #ifdef __cplusplusextern "C" {#endif #include <assert.h>#include <stdio.h>#include "list.h"#ifndef __cplusplus#include <stdbool.h>#endif struct file { struct file *next; struct file *parent; const char *name; int lineno;}; typedef enum tristate { no, mod, yes} tristate; enum expr_type { E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LTH, E_LEQ, E_GTH, E_GEQ, E_LIST, E_SYMBOL, E_RANGE}; union expr_data { struct expr *expr; struct symbol *sym;}; struct expr { enum expr_type type; union expr_data left, right;}; #define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))#define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))#define EXPR_NOT(dep) (2-(dep)) #define expr_list_for_each_sym(l, e, s) \ for (e = (l); e && (s = e->right.sym); e = e->left.expr) struct expr_value { struct expr *expr; tristate tri;}; struct symbol_value { void *val; tristate tri;}; enum symbol_type { S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER}; /* enum values are used as index to symbol.def[] */enum { S_DEF_USER, /* main user value */ S_DEF_AUTO, /* values read from auto.conf */ S_DEF_DEF3, /* Reserved for UI usage */ S_DEF_DEF4, /* Reserved for UI usage */ S_DEF_COUNT}; /* * Represents a configuration symbol. * * Choices are represented as a special kind of symbol and have the * SYMBOL_CHOICE bit set in 'flags'. */struct symbol { /* The next symbol in the same bucket in the symbol hash table */ struct symbol *next; /* The name of the symbol, e.g. "FOO" for 'config FOO' */ char *name; /* S_BOOLEAN, S_TRISTATE, ... */ enum symbol_type type; /* * The calculated value of the symbol. 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) if (sym->type != S_OTHER) #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_AUTO 0x1000 /* value from environment variable */#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 zconf.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_ENV, /* value from environment variable */ 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_trans_bool(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 */
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#ifndef EXPR_H
#define EXPR_H
#ifdef __cplusplus
extern "C" {
#endif
#include <assert.h>
#include <stdio.h>
#include "list.h"
#ifndef __cplusplus
#include <stdbool.h>
#endif
struct file {
struct file *next;
struct file *parent;
const char *name;
int lineno;
};
typedef enum tristate {
no, mod, yes
} tristate;
enum expr_type {
E_NONE, E_OR, E_AND, E_NOT,
E_EQUAL, E_UNEQUAL, E_LTH, E_LEQ, E_GTH, E_GEQ,
E_LIST, E_SYMBOL, E_RANGE
};
union expr_data {
struct expr *expr;
struct symbol *sym;
};
struct expr {
enum expr_type type;
union expr_data left, right;
};
#define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
#define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
#define EXPR_NOT(dep) (2-(dep))
#define expr_list_for_each_sym(l, e, s) \
for (e = (l); e && (s = e->right.sym); e = e->left.expr)
struct expr_value {
struct expr *expr;
tristate tri;
};
struct symbol_value {
void *val;
tristate tri;
};
enum symbol_type {
S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
};
/* enum values are used as index to symbol.def[] */
enum {
S_DEF_USER, /* main user value */
S_DEF_AUTO, /* values read from auto.conf */
S_DEF_DEF3, /* Reserved for UI usage */
S_DEF_DEF4, /* Reserved for UI usage */
S_DEF_COUNT
};
/*
* Represents a configuration symbol.
*
* Choices are represented as a special kind of symbol and have the
* SYMBOL_CHOICE bit set in 'flags'.
*/
struct symbol {
/* The next symbol in the same bucket in the symbol hash table */
struct symbol *next;
/* The name of the symbol, e.g. "FOO" for 'config FOO' */
char *name;
/* S_BOOLEAN, S_TRISTATE, ... */
enum symbol_type type;
/*
* The calculated value of the symbol. 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) if (sym->type != S_OTHER)
#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_AUTO 0x1000 /* value from environment variable */
#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 zconf.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_ENV, /* value from environment variable */
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_trans_bool(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 */