Orange Pi5 kernel

 /* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
 */
 
#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
};
 
/* 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)
 
#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 */
<------>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);
int expr_eq(struct expr *e1, struct expr *e2);
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 */

	/* SPDX-License-Identifier: GPL-2.0 */
	/*
	* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
	*/

	#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
	};

	/* 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)

	#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 */
	<------>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);
	int expr_eq(struct expr e1, struct expr e2);
	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 */