LXR linux/scripts/genksyms/genksyms.h

   1/* Generate kernel symbol version hashes.
   2   Copyright 1996, 1997 Linux International.
   3
   4   New implementation contributed by Richard Henderson <rth@tamu.edu>
   5   Based on original work by Bjorn Ekwall <bj0rn@blox.se>
   6
   7   This file is part of the Linux modutils.
   8
   9   This program is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU General Public License as published by the
  11   Free Software Foundation; either version 2 of the License, or (at your
  12   option) any later version.
  13
  14   This program is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU General Public License
  20   along with this program; if not, write to the Free Software Foundation,
  21   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  22
  23#ifndef MODUTILS_GENKSYMS_H
  24#define MODUTILS_GENKSYMS_H 1
  25
  26#include <stdio.h>
  27
  28enum symbol_type {
  29        SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION
  30};
  31
  32struct string_list {
  33        struct string_list *next;
  34        enum symbol_type tag;
  35        char *string;
  36};
  37
  38struct symbol {
  39        struct symbol *hash_next;
  40        const char *name;
  41        enum symbol_type type;
  42        struct string_list *defn;
  43        struct symbol *expansion_trail;
  44        struct symbol *visited;
  45        int is_extern;
  46};
  47
  48typedef struct string_list **yystype;
  49#define YYSTYPE yystype
  50
  51extern int cur_line;
  52extern char *cur_filename;
  53
  54struct symbol *find_symbol(const char *name, enum symbol_type ns);
  55struct symbol *add_symbol(const char *name, enum symbol_type type,
  56                          struct string_list *defn, int is_extern);
  57void export_symbol(const char *);
  58
  59void free_node(struct string_list *list);
  60void free_list(struct string_list *s, struct string_list *e);
  61struct string_list *copy_node(struct string_list *);
  62
  63int yylex(void);
  64int yyparse(void);
  65
  66void error_with_pos(const char *, ...);
  67
  68/*----------------------------------------------------------------------*/
  69#define xmalloc(size) ({ void *__ptr = malloc(size);            \
  70        if(!__ptr && size != 0) {                               \
  71                fprintf(stderr, "out of memory\n");             \
  72                exit(1);                                        \
  73        }                                                       \
  74        __ptr; })
  75#define xstrdup(str)  ({ char *__str = strdup(str);             \
  76        if (!__str) {                                           \
  77                fprintf(stderr, "out of memory\n");             \
  78                exit(1);                                        \
  79        }                                                       \
  80        __str; })
  81
  82#endif                          /* genksyms.h */
  83