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        SYM_ENUM_CONST
  31};
  32
  33enum symbol_status {
  34        STATUS_UNCHANGED, STATUS_DEFINED, STATUS_MODIFIED
  35};
  36
  37struct string_list {
  38        struct string_list *next;
  39        enum symbol_type tag;
  40        int in_source_file;
  41        char *string;
  42};
  43
  44struct symbol {
  45        struct symbol *hash_next;
  46        const char *name;
  47        enum symbol_type type;
  48        struct string_list *defn;
  49        struct symbol *expansion_trail;
  50        struct symbol *visited;
  51        int is_extern;
  52        int is_declared;
  53        enum symbol_status status;
  54        int is_override;
  55};
  56
  57typedef struct string_list **yystype;
  58#define YYSTYPE yystype
  59
  60extern int cur_line;
  61extern char *cur_filename, *source_file;
  62extern int in_source_file;
  63
  64struct symbol *find_symbol(const char *name, enum symbol_type ns, int exact);
  65struct symbol *add_symbol(const char *name, enum symbol_type type,
  66                          struct string_list *defn, int is_extern);
  67void export_symbol(const char *);
  68
  69void free_node(struct string_list *list);
  70void free_list(struct string_list *s, struct string_list *e);
  71struct string_list *copy_node(struct string_list *);
  72struct string_list *copy_list_range(struct string_list *start,
  73                                    struct string_list *end);
  74
  75int yylex(void);
  76int yyparse(void);
  77
  78void error_with_pos(const char *, ...);
  79
  80/*----------------------------------------------------------------------*/
  81#define xmalloc(size) ({ void *__ptr = malloc(size);            \
  82        if(!__ptr && size != 0) {                               \
  83                fprintf(stderr, "out of memory\n");             \
  84                exit(1);                                        \
  85        }                                                       \
  86        __ptr; })
  87#define xstrdup(str)  ({ char *__str = strdup(str);             \
  88        if (!__str) {                                           \
  89                fprintf(stderr, "out of memory\n");             \
  90                exit(1);                                        \
  91        }                                                       \
  92        __str; })
  93
  94#endif                          /* genksyms.h */
  95