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
  24 #ifndef MODUTILS_GENKSYMS_H
  25 #define MODUTILS_GENKSYMS_H 1
  26
  27 #include <stdio.h>
  28 #include <assert.h>
  29
  30
  31 enum symbol_type
  32 {
  33   SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION
  34 };
  35
  36 struct string_list
  37 {
  38   struct string_list *next;
  39   enum symbol_type tag;
  40   char *string;
  41 };
  42
  43 struct symbol
  44 {
  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   int is_extern;
  51 };
  52
  53 typedef struct string_list **yystype;
  54 #define YYSTYPE yystype
  55
  56 extern FILE *outfile, *debugfile;
  57
  58 extern int cur_line;
  59 extern char *cur_filename, *output_directory;
  60
  61 extern int flag_debug, flag_dump_defs, flag_warnings;
  62 extern int checksum_version, kernel_version;
  63
  64 extern int want_brace_phrase, want_exp_phrase, discard_phrase_contents;
  65 extern struct string_list *current_list, *next_list;
  66
  67
  68 struct symbol *find_symbol(const char *name, enum symbol_type ns);
  69 struct symbol *add_symbol(const char *name, enum symbol_type type,
  70                            struct string_list *defn, int is_extern);
  71 void export_symbol(const char *);
  72
  73 struct string_list *reset_list(void);
  74 void free_list(struct string_list *s, struct string_list *e);
  75 void free_node(struct string_list *list);
  76 struct string_list *copy_node(struct string_list *);
  77 struct string_list *copy_list(struct string_list *s, struct string_list *e);
  78 int equal_list(struct string_list *a, struct string_list *b);
  79 void print_list(FILE *, struct string_list *list);
  80
  81 int yylex(void);
  82 int yyparse(void);
  83
  84 void error_with_pos(const char *, ...);
  85
  86 #define version(a,b,c)  ((a << 16) | (b << 8) | (c))
  87
  88 /*----------------------------------------------------------------------*/
  89
  90 #define MODUTILS_VERSION "<in-kernel>"
  91
  92 #define xmalloc(size) ({ void *__ptr = malloc(size); assert(__ptr || size == 0); __ptr; })
  93 #define xstrdup(str)  ({ char *__str = strdup(str); assert(__str); __str; })
  94
  95
  96 #endif /* genksyms.h */