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 
17 enum symbol_type {
18 	SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION,
19 	SYM_ENUM_CONST
20 };
21 
22 enum symbol_status {
23 	STATUS_UNCHANGED, STATUS_DEFINED, STATUS_MODIFIED
24 };
25 
26 struct string_list {
27 	struct string_list *next;
28 	enum symbol_type tag;
29 	int in_source_file;
30 	char *string;
31 };
32 
33 struct 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 
46 typedef struct string_list **yystype;
47 #define YYSTYPE yystype
48 
49 extern int cur_line;
50 extern char *cur_filename;
51 extern int in_source_file;
52 
53 struct symbol *find_symbol(const char *name, enum symbol_type ns, int exact);
54 struct symbol *add_symbol(const char *name, enum symbol_type type,
55 			  struct string_list *defn, int is_extern);
56 void export_symbol(const char *);
57 
58 void free_node(struct string_list *list);
59 void free_list(struct string_list *s, struct string_list *e);
60 struct string_list *copy_node(struct string_list *);
61 struct string_list *copy_list_range(struct string_list *start,
62 				    struct string_list *end);
63 
64 int yylex(void);
65 int yyparse(void);
66 
67 void 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