/* SPDX-License-Identifier: GPL-2.0-or-later */
/* 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.

 */

#ifndef MODUTILS_GENKSYMS_H
#define MODUTILS_GENKSYMS_H 1

#include <stdbool.h>
#include <stdio.h>

#include <list_types.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 hlist_node hnode;
        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;
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);

extern bool dont_want_type_specifier;

void error_with_pos(const char *, ...) __attribute__ ((format(printf, 1, 2)));

/*----------------------------------------------------------------------*/
#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 */