scripts/genksyms/keywords.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 static struct resword {
   3         const char *name;
   4         int token;
   5 } keywords[] = {
   6         { "__GENKSYMS_EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW },
   7         { "__asm", ASM_KEYW },
   8         { "__asm__", ASM_KEYW },
   9         { "__attribute", ATTRIBUTE_KEYW },
  10         { "__attribute__", ATTRIBUTE_KEYW },
  11         { "__const", CONST_KEYW },
  12         { "__const__", CONST_KEYW },
  13         { "__extension__", EXTENSION_KEYW },
  14         { "__inline", INLINE_KEYW },
  15         { "__inline__", INLINE_KEYW },
  16         { "__signed", SIGNED_KEYW },
  17         { "__signed__", SIGNED_KEYW },
  18         { "__typeof", TYPEOF_KEYW },
  19         { "__typeof__", TYPEOF_KEYW },
  20         { "__volatile", VOLATILE_KEYW },
  21         { "__volatile__", VOLATILE_KEYW },
  22         { "__builtin_va_list", VA_LIST_KEYW },
  23
  24         { "__int128", BUILTIN_INT_KEYW },
  25         { "__int128_t", BUILTIN_INT_KEYW },
  26         { "__uint128_t", BUILTIN_INT_KEYW },
  27
  28         // According to rth, c99 defines "_Bool", "__restrict", "__restrict__", "restrict".  KAO
  29         { "_Bool", BOOL_KEYW },
  30         { "__restrict", RESTRICT_KEYW },
  31         { "__restrict__", RESTRICT_KEYW },
  32         { "restrict", RESTRICT_KEYW },
  33         { "asm", ASM_KEYW },
  34
  35         // c11 keywords that can be used at module scope
  36         { "_Static_assert", STATIC_ASSERT_KEYW },
  37
  38         // attribute commented out in modutils 2.4.2.  People are using 'attribute' as a
  39         // field name which breaks the genksyms parser.  It is not a gcc keyword anyway.
  40         // KAO. },
  41         // { "attribute", ATTRIBUTE_KEYW },
  42
  43         { "auto", AUTO_KEYW },
  44         { "char", CHAR_KEYW },
  45         { "const", CONST_KEYW },
  46         { "double", DOUBLE_KEYW },
  47         { "enum", ENUM_KEYW },
  48         { "extern", EXTERN_KEYW },
  49         { "float", FLOAT_KEYW },
  50         { "inline", INLINE_KEYW },
  51         { "int", INT_KEYW },
  52         { "long", LONG_KEYW },
  53         { "register", REGISTER_KEYW },
  54         { "short", SHORT_KEYW },
  55         { "signed", SIGNED_KEYW },
  56         { "static", STATIC_KEYW },
  57         { "struct", STRUCT_KEYW },
  58         { "typedef", TYPEDEF_KEYW },
  59         { "typeof", TYPEOF_KEYW },
  60         { "union", UNION_KEYW },
  61         { "unsigned", UNSIGNED_KEYW },
  62         { "void", VOID_KEYW },
  63         { "volatile", VOLATILE_KEYW },
  64 };
  65
  66 #define NR_KEYWORDS (sizeof(keywords)/sizeof(struct resword))
  67
  68 static int is_reserved_word(register const char *str, register unsigned int len)
  69 {
  70         int i;
  71         for (i = 0; i < NR_KEYWORDS; i++) {
  72                 struct resword *r = keywords + i;
  73                 int l = strlen(r->name);
  74                 if (len == l && !memcmp(str, r->name, len))
  75                         return r->token;
  76         }
  77         return -1;
  78 }