1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/* Generate kernel symbol version hashes.
3   Copyright 1996, 1997 Linux International.
4
5   New implementation contributed by Richard Henderson <rth@tamu.edu>
6   Based on original work by Bjorn Ekwall <bj0rn@blox.se>
7
8   This file is part of the Linux modutils.
9
10 */
11
12#ifndef MODUTILS_GENKSYMS_H
13#define MODUTILS_GENKSYMS_H 1
14
15#include <stdio.h>
16
17enum symbol_type {
18	SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION,
19	SYM_ENUM_CONST
20};
21
22enum symbol_status {
23	STATUS_UNCHANGED, STATUS_DEFINED, STATUS_MODIFIED
24};
25
26struct string_list {
27	struct string_list *next;
28	enum symbol_type tag;
29	int in_source_file;
30	char *string;
31};
32
33struct symbol {
34	struct symbol *hash_next;
35	const char *name;
36	enum symbol_type type;
37	struct string_list *defn;
38	struct symbol *expansion_trail;
39	struct symbol *visited;
40	int is_extern;
41	int is_declared;
42	enum symbol_status status;
43	int is_override;
44};
45
46typedef struct string_list **yystype;
47#define YYSTYPE yystype
48
49extern int cur_line;
50extern char *cur_filename;
51extern int in_source_file;
52
53struct symbol *find_symbol(const char *name, enum symbol_type ns, int exact);
54struct symbol *add_symbol(const char *name, enum symbol_type type,
55			  struct string_list *defn, int is_extern);
56void export_symbol(const char *);
57
58void free_node(struct string_list *list);
59void free_list(struct string_list *s, struct string_list *e);
60struct string_list *copy_node(struct string_list *);
61struct string_list *copy_list_range(struct string_list *start,
62				    struct string_list *end);
63
64int yylex(void);
65int yyparse(void);
66
67void error_with_pos(const char *, ...) __attribute__ ((format(printf, 1, 2)));
68
69/*----------------------------------------------------------------------*/
70#define xmalloc(size) ({ void *__ptr = malloc(size);		\
71	if(!__ptr && size != 0) {				\
72		fprintf(stderr, "out of memory\n");		\
73		exit(1);					\
74	}							\
75	__ptr; })
76#define xstrdup(str)  ({ char *__str = strdup(str);		\
77	if (!__str) {						\
78		fprintf(stderr, "out of memory\n");		\
79		exit(1);					\
80	}							\
81	__str; })
82
83#endif				/* genksyms.h */
84