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
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