genksyms.h

 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 <stdbool.h>
16#include <stdio.h>
17
18#include <list_types.h>
19
20enum symbol_type {
21	SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION,
22	SYM_ENUM_CONST
23};
24
25enum symbol_status {
26	STATUS_UNCHANGED, STATUS_DEFINED, STATUS_MODIFIED
27};
28
29struct string_list {
30	struct string_list *next;
31	enum symbol_type tag;
32	int in_source_file;
33	char *string;
34};
35
36struct symbol {
37	struct hlist_node hnode;
38	char *name;
39	enum symbol_type type;
40	struct string_list *defn;
41	struct symbol *expansion_trail;
42	struct symbol *visited;
43	int is_extern;
44	int is_declared;
45	enum symbol_status status;
46	int is_override;
47};
48
49typedef struct string_list **yystype;
50#define YYSTYPE yystype
51
52extern int cur_line;
53extern char *cur_filename;
54extern int in_source_file;
55
56struct symbol *find_symbol(const char *name, enum symbol_type ns, int exact);
57struct symbol *add_symbol(const char *name, enum symbol_type type,
58			  struct string_list *defn, int is_extern);
59void export_symbol(const char *);
60
61void free_node(struct string_list *list);
62void free_list(struct string_list *s, struct string_list *e);
63struct string_list *copy_node(struct string_list *);
64struct string_list *copy_list_range(struct string_list *start,
65				    struct string_list *end);
66
67int yylex(void);
68int yyparse(void);
69
70extern bool dont_want_type_specifier;
71
72void error_with_pos(const char *, ...) __attribute__ ((format(printf, 1, 2)));
73
74/*----------------------------------------------------------------------*/
75#define xmalloc(size) ({ void *__ptr = malloc(size);		\
76	if(!__ptr && size != 0) {				\
77		fprintf(stderr, "out of memory\n");		\
78		exit(1);					\
79	}							\
80	__ptr; })
81#define xstrdup(str)  ({ char *__str = strdup(str);		\
82	if (!__str) {						\
83		fprintf(stderr, "out of memory\n");		\
84		exit(1);					\
85	}							\
86	__str; })
87
88#endif				/* genksyms.h */