[linux-2.6-block.git] / scripts / genksyms / genksyms.h

/* Generate kernel symbol version hashes.
   Copyright 1996, 1997 Linux International.

   New implementation contributed by Richard Henderson <rth@tamu.edu>
   Based on original work by Bjorn Ekwall <bj0rn@blox.se>

   This file is part of the Linux modutils.

   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the
   Free Software Foundation; either version 2 of the License, or (at your
   option) any later version.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#ifndef MODUTILS_GENKSYMS_H
#define MODUTILS_GENKSYMS_H 1

#include <stdio.h>

enum symbol_type {
	SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION
};

enum symbol_status {
	STATUS_UNCHANGED, STATUS_DEFINED, STATUS_MODIFIED
};

struct string_list {
	struct string_list *next;
	enum symbol_type tag;
	char *string;
};

struct symbol {
	struct symbol *hash_next;
	const char *name;
	enum symbol_type type;
	struct string_list *defn;
	struct symbol *expansion_trail;
	struct symbol *visited;
	int is_extern;
	int is_declared;
	enum symbol_status status;
	int is_override;
};

typedef struct string_list **yystype;
#define YYSTYPE yystype

extern int cur_line;
extern char *cur_filename;

struct symbol *find_symbol(const char *name, enum symbol_type ns);
struct symbol *add_symbol(const char *name, enum symbol_type type,
			  struct string_list *defn, int is_extern);
void export_symbol(const char *);

void free_node(struct string_list *list);
void free_list(struct string_list *s, struct string_list *e);
struct string_list *copy_node(struct string_list *);

int yylex(void);
int yyparse(void);

void error_with_pos(const char *, ...);

/*----------------------------------------------------------------------*/
#define xmalloc(size) ({ void *__ptr = malloc(size);		\
	if(!__ptr && size != 0) {				\
		fprintf(stderr, "out of memory\n");		\
		exit(1);					\
	}							\
	__ptr; })
#define xstrdup(str)  ({ char *__str = strdup(str);		\
	if (!__str) {						\
		fprintf(stderr, "out of memory\n");		\
		exit(1);					\
	}							\
	__str; })

#endif				/* genksyms.h */
Commit	Line	Data
1da177e4 LT	1	/* Generate kernel symbol version hashes.
	2	Copyright 1996, 1997 Linux International.
	3
	4	New implementation contributed by Richard Henderson <rth@tamu.edu>
	5	Based on original work by Bjorn Ekwall <bj0rn@blox.se>
	6
	7	This file is part of the Linux modutils.
	8
	9	This program is free software; you can redistribute it and/or modify it
	10	under the terms of the GNU General Public License as published by the
	11	Free Software Foundation; either version 2 of the License, or (at your
	12	option) any later version.
	13
	14	This program is distributed in the hope that it will be useful, but
	15	WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	17	General Public License for more details.
	18
	19	You should have received a copy of the GNU General Public License
	20	along with this program; if not, write to the Free Software Foundation,
	21	Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	22
1da177e4 LT	23	#ifndef MODUTILS_GENKSYMS_H
	24	#define MODUTILS_GENKSYMS_H 1
	25
	26	#include <stdio.h>
	27
ce560686 SR	28	enum symbol_type {
ce560686 SR	29	SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION
1da177e4 LT	30	};
1da177e4 LT	31
64e6c1e1 AG	32	enum symbol_status {
	33	STATUS_UNCHANGED, STATUS_DEFINED, STATUS_MODIFIED
	34	};
	35
ce560686 SR	36	struct string_list {
	37	struct string_list *next;
	38	enum symbol_type tag;
	39	char *string;
1da177e4 LT	40	};
1da177e4 LT	41
ce560686 SR	42	struct symbol {
	43	struct symbol *hash_next;
	44	const char *name;
	45	enum symbol_type type;
	46	struct string_list *defn;
	47	struct symbol *expansion_trail;
15fde675	48	struct symbol *visited;
ce560686	49	int is_extern;
64e6c1e1 AG	50	int is_declared;
64e6c1e1 AG	51	enum symbol_status status;
5dae9a55	52	int is_override;
1da177e4 LT	53	};
	54
	55	typedef struct string_list **yystype;
	56	#define YYSTYPE yystype
	57
1da177e4	58	extern int cur_line;
ce560686	59	extern char *cur_filename;
1da177e4 LT	60
	61	struct symbol find_symbol(const char name, enum symbol_type ns);
	62	struct symbol add_symbol(const char name, enum symbol_type type,
ce560686	63	struct string_list *defn, int is_extern);
1da177e4 LT	64	void export_symbol(const char *);
1da177e4 LT	65
1da177e4	66	void free_node(struct string_list *list);
ce560686	67	void free_list(struct string_list s, struct string_list e);
1da177e4	68	struct string_list copy_node(struct string_list );
1da177e4 LT	69
	70	int yylex(void);
	71	int yyparse(void);
	72
	73	void error_with_pos(const char *, ...);
	74
1da177e4	75	/----------------------------------------------------------------------/
1da177e4 LT	76	#define xmalloc(size) ({ void *__ptr = malloc(size); \
	77	if(!__ptr && size != 0) { \
	78	fprintf(stderr, "out of memory\n"); \
	79	exit(1); \
	80	} \
	81	__ptr; })
	82	#define xstrdup(str) ({ char *__str = strdup(str); \
	83	if (!__str) { \
	84	fprintf(stderr, "out of memory\n"); \
	85	exit(1); \
	86	} \
	87	__str; })
	88
ce560686	89	#endif /* genksyms.h */