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