[GitHub/mt8127/android_kernel_alcatel_ttab.git] / scripts / kconfig / 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 <stdio.h>
#ifndef __cplusplus
#include <stdbool.h>
#endif

struct file {
	struct file *next;
	struct file *parent;
	char *name;
	int lineno;
	int flags;
};

#define FILE_BUSY		0x0001
#define FILE_SCANNED		0x0002

typedef enum tristate {
	no, mod, yes
} tristate;

enum expr_type {
	E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, 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
};

struct symbol {
	struct symbol *next;
	char *name;
	enum symbol_type type;
	struct symbol_value curr;
	struct symbol_value def[S_DEF_COUNT];
	tristate visible;
	int flags;
	struct property *prop;
	struct expr_value rev_dep;
};

#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)

#define SYMBOL_CONST		0x0001
#define SYMBOL_CHECK		0x0008
#define SYMBOL_CHOICE		0x0010
#define SYMBOL_CHOICEVAL	0x0020
#define SYMBOL_VALID		0x0080
#define SYMBOL_OPTIONAL		0x0100
#define SYMBOL_WRITE		0x0200
#define SYMBOL_CHANGED		0x0400
#define SYMBOL_AUTO		0x1000
#define SYMBOL_CHECKED		0x2000
#define SYMBOL_WARNED		0x8000
#define SYMBOL_DEF		0x10000
#define SYMBOL_DEF_USER		0x10000
#define SYMBOL_DEF_AUTO		0x20000
#define SYMBOL_DEF3		0x40000
#define SYMBOL_DEF4		0x80000

#define SYMBOL_MAXLENGTH	256
#define SYMBOL_HASHSIZE		257
#define SYMBOL_HASHMASK		0xff

enum prop_type {
	P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE,
	P_SELECT, P_RANGE, P_ENV
};

struct property {
	struct property *next;
	struct symbol *sym;
	enum prop_type type;
	const char *text;
	struct expr_value visible;
	struct expr *expr;
	struct menu *menu;
	struct file *file;
	int lineno;
};

#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)

struct menu {
	struct menu *next;
	struct menu *parent;
	struct menu *list;
	struct symbol *sym;
	struct property *prompt;
	struct expr *dep;
	unsigned int flags;
	char *help;
	struct file *file;
	int lineno;
	void *data;
};

#define MENU_CHANGED		0x0001
#define MENU_ROOT		0x0002

#ifndef SWIG

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(struct expr *org);
void expr_free(struct expr *e);
int expr_eq(struct expr *e1, struct expr *e2);
void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
tristate expr_calc_value(struct expr *e);
struct expr *expr_eliminate_yn(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_extract_eq_and(struct expr **ep1, struct expr **ep2);
struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
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);

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);
}
#endif

#ifdef __cplusplus
}
#endif

#endif /* EXPR_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
	3	* Released under the terms of the GNU GPL v2.0.
	4	*/
	5
	6	#ifndef EXPR_H
	7	#define EXPR_H
	8
	9	#ifdef __cplusplus
	10	extern "C" {
	11	#endif
	12
	13	#include <stdio.h>
	14	#ifndef __cplusplus
	15	#include <stdbool.h>
	16	#endif
	17
	18	struct file {
	19	struct file *next;
	20	struct file *parent;
	21	char *name;
	22	int lineno;
	23	int flags;
	24	};
	25
	26	#define FILE_BUSY 0x0001
	27	#define FILE_SCANNED 0x0002
1da177e4 LT	28
	29	typedef enum tristate {
	30	no, mod, yes
	31	} tristate;
	32
	33	enum expr_type {
7a962923	34	E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE
1da177e4 LT	35	};
	36
	37	union expr_data {
	38	struct expr *expr;
	39	struct symbol *sym;
	40	};
	41
	42	struct expr {
	43	enum expr_type type;
	44	union expr_data left, right;
	45	};
	46
d6ee3576 SR	47	#define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
	48	#define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
	49	#define EXPR_NOT(dep) (2-(dep))
1da177e4	50
7a962923 RZ	51	#define expr_list_for_each_sym(l, e, s) \
	52	for (e = (l); e && (s = e->right.sym); e = e->left.expr)
	53
1da177e4 LT	54	struct expr_value {
	55	struct expr *expr;
	56	tristate tri;
	57	};
	58
	59	struct symbol_value {
	60	void *val;
	61	tristate tri;
	62	};
	63
	64	enum symbol_type {
	65	S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
	66	};
	67
eaa2a874	68	/* enum values are used as index to symbol.def[] */
0c1822e6 RZ	69	enum {
0c1822e6 RZ	70	S_DEF_USER, /* main user value */
eaa2a874 SR	71	S_DEF_AUTO, /* values read from auto.conf */
	72	S_DEF_DEF3, /* Reserved for UI usage */
	73	S_DEF_DEF4, /* Reserved for UI usage */
	74	S_DEF_COUNT
0c1822e6 RZ	75	};
0c1822e6 RZ	76
1da177e4 LT	77	struct symbol {
	78	struct symbol *next;
	79	char *name;
1da177e4	80	enum symbol_type type;
0c1822e6	81	struct symbol_value curr;
eaa2a874	82	struct symbol_value def[S_DEF_COUNT];
1da177e4 LT	83	tristate visible;
	84	int flags;
	85	struct property *prop;
1da177e4 LT	86	struct expr_value rev_dep;
	87	};
	88
	89	#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)
	90
c0e150ac	91	#define SYMBOL_CONST 0x0001
1da177e4 LT	92	#define SYMBOL_CHECK 0x0008
	93	#define SYMBOL_CHOICE 0x0010
	94	#define SYMBOL_CHOICEVAL 0x0020
1da177e4 LT	95	#define SYMBOL_VALID 0x0080
	96	#define SYMBOL_OPTIONAL 0x0100
	97	#define SYMBOL_WRITE 0x0200
	98	#define SYMBOL_CHANGED 0x0400
1da177e4 LT	99	#define SYMBOL_AUTO 0x1000
1da177e4 LT	100	#define SYMBOL_CHECKED 0x2000
1da177e4	101	#define SYMBOL_WARNED 0x8000
669bfad9 RZ	102	#define SYMBOL_DEF 0x10000
669bfad9 RZ	103	#define SYMBOL_DEF_USER 0x10000
2e3646e5	104	#define SYMBOL_DEF_AUTO 0x20000
669bfad9 RZ	105	#define SYMBOL_DEF3 0x40000
669bfad9 RZ	106	#define SYMBOL_DEF4 0x80000
1da177e4 LT	107
	108	#define SYMBOL_MAXLENGTH 256
	109	#define SYMBOL_HASHSIZE 257
	110	#define SYMBOL_HASHMASK 0xff
	111
	112	enum prop_type {
93449082 RZ	113	P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE,
93449082 RZ	114	P_SELECT, P_RANGE, P_ENV
1da177e4 LT	115	};
	116
	117	struct property {
	118	struct property *next;
	119	struct symbol *sym;
	120	enum prop_type type;
	121	const char *text;
	122	struct expr_value visible;
	123	struct expr *expr;
	124	struct menu *menu;
	125	struct file *file;
	126	int lineno;
	127	};
	128
	129	#define for_all_properties(sym, st, tok) \
	130	for (st = sym->prop; st; st = st->next) \
	131	if (st->type == (tok))
	132	#define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
	133	#define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
	134	#define for_all_prompts(sym, st) \
	135	for (st = sym->prop; st; st = st->next) \
	136	if (st->text)
	137
	138	struct menu {
	139	struct menu *next;
	140	struct menu *parent;
	141	struct menu *list;
	142	struct symbol *sym;
	143	struct property *prompt;
	144	struct expr *dep;
	145	unsigned int flags;
03d29122	146	char *help;
1da177e4 LT	147	struct file *file;
	148	int lineno;
	149	void *data;
	150	};
	151
	152	#define MENU_CHANGED 0x0001
	153	#define MENU_ROOT 0x0002
	154
	155	#ifndef SWIG
	156
	157	extern struct file *file_list;
	158	extern struct file *current_file;
	159	struct file lookup_file(const char name);
	160
	161	extern struct symbol symbol_yes, symbol_no, symbol_mod;
	162	extern struct symbol *modules_sym;
face4374	163	extern struct symbol *sym_defconfig_list;
1da177e4 LT	164	extern int cdebug;
	165	struct expr expr_alloc_symbol(struct symbol sym);
	166	struct expr expr_alloc_one(enum expr_type type, struct expr ce);
	167	struct expr expr_alloc_two(enum expr_type type, struct expr e1, struct expr *e2);
	168	struct expr expr_alloc_comp(enum expr_type type, struct symbol s1, struct symbol *s2);
	169	struct expr expr_alloc_and(struct expr e1, struct expr *e2);
	170	struct expr expr_alloc_or(struct expr e1, struct expr *e2);
	171	struct expr expr_copy(struct expr org);
	172	void expr_free(struct expr *e);
	173	int expr_eq(struct expr e1, struct expr e2);
	174	void expr_eliminate_eq(struct expr ep1, struct expr ep2);
	175	tristate expr_calc_value(struct expr *e);
	176	struct expr expr_eliminate_yn(struct expr e);
	177	struct expr expr_trans_bool(struct expr e);
	178	struct expr expr_eliminate_dups(struct expr e);
	179	struct expr expr_transform(struct expr e);
	180	int expr_contains_symbol(struct expr dep, struct symbol sym);
	181	bool expr_depends_symbol(struct expr dep, struct symbol sym);
	182	struct expr expr_extract_eq_and(struct expr ep1, struct expr *ep2);
	183	struct expr expr_extract_eq_or(struct expr ep1, struct expr *ep2);
	184	void expr_extract_eq(enum expr_type type, struct expr ep, struct expr ep1, struct expr **ep2);
	185	struct expr expr_trans_compare(struct expr e, enum expr_type type, struct symbol *sym);
	186
	187	void expr_fprint(struct expr e, FILE out);
	188	struct gstr; /* forward */
	189	void expr_gstr_print(struct expr e, struct gstr gs);
	190
	191	static inline int expr_is_yes(struct expr *e)
	192	{
	193	return !e \|\| (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
	194	}
	195
	196	static inline int expr_is_no(struct expr *e)
	197	{
	198	return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);
	199	}
	200	#endif
	201
	202	#ifdef __cplusplus
	203	}
	204	#endif
	205
	206	#endif /* EXPR_H */