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

New implementation contributed by Richard Henderson <[email protected]>
Based on original work by Bjorn Ekwall <[email protected]>

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,
SYM_ENUM_CONST
};

enum symbol_status {
STATUS_UNCHANGED, STATUS_DEFINED, STATUS_MODIFIED
};

struct string_list {
struct string_list *next;
enum symbol_type tag;
int in_source_file;
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, *source_file;
extern int in_source_file;

struct symbol *find_symbol(const char *name, enum symbol_type ns, int exact);
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 *);
struct string_list *copy_list_range(struct string_list *start,
struct string_list *end);

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 */