LXR linux/scripts/genksyms/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 <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, *source_file;
  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