// SPDX-License-Identifier: GPL-2.0-only
static struct resword {
        const char *name;
        int token;
} keywords[] = {
        { "__GENKSYMS_EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW },
        { "__asm", ASM_KEYW },
        { "__asm__", ASM_KEYW },
        { "__attribute", ATTRIBUTE_KEYW },
        { "__attribute__", ATTRIBUTE_KEYW },
        { "__const", CONST_KEYW },
        { "__const__", CONST_KEYW },
        { "__extension__", EXTENSION_KEYW },
        { "__inline", INLINE_KEYW },
        { "__inline__", INLINE_KEYW },
        { "__signed", SIGNED_KEYW },
        { "__signed__", SIGNED_KEYW },
        { "__typeof", TYPEOF_KEYW },
        { "__typeof__", TYPEOF_KEYW },
        { "__typeof_unqual", TYPEOF_KEYW },
        { "__typeof_unqual__", TYPEOF_KEYW },
        { "__volatile", VOLATILE_KEYW },
        { "__volatile__", VOLATILE_KEYW },
        { "__builtin_va_list", VA_LIST_KEYW },

        { "__int128", BUILTIN_INT_KEYW },
        { "__int128_t", BUILTIN_INT_KEYW },
        { "__uint128_t", BUILTIN_INT_KEYW },

        // According to rth, c99 defines "_Bool", "__restrict", "__restrict__", "restrict".  KAO
        { "_Bool", BOOL_KEYW },
        { "__restrict", RESTRICT_KEYW },
        { "__restrict__", RESTRICT_KEYW },
        { "restrict", RESTRICT_KEYW },
        { "asm", ASM_KEYW },

        // c11 keywords that can be used at module scope
        { "_Static_assert", STATIC_ASSERT_KEYW },

        // attribute commented out in modutils 2.4.2.  People are using 'attribute' as a
        // field name which breaks the genksyms parser.  It is not a gcc keyword anyway.
        // KAO. },
        // { "attribute", ATTRIBUTE_KEYW },

        // X86 named address space qualifiers
        { "__seg_gs", X86_SEG_KEYW },
        { "__seg_fs", X86_SEG_KEYW },

        { "auto", AUTO_KEYW },
        { "char", CHAR_KEYW },
        { "const", CONST_KEYW },
        { "double", DOUBLE_KEYW },
        { "enum", ENUM_KEYW },
        { "extern", EXTERN_KEYW },
        { "float", FLOAT_KEYW },
        { "inline", INLINE_KEYW },
        { "int", INT_KEYW },
        { "long", LONG_KEYW },
        { "register", REGISTER_KEYW },
        { "short", SHORT_KEYW },
        { "signed", SIGNED_KEYW },
        { "static", STATIC_KEYW },
        { "struct", STRUCT_KEYW },
        { "typedef", TYPEDEF_KEYW },
        { "typeof", TYPEOF_KEYW },
        { "typeof_unqual", TYPEOF_KEYW },
        { "union", UNION_KEYW },
        { "unsigned", UNSIGNED_KEYW },
        { "void", VOID_KEYW },
        { "volatile", VOLATILE_KEYW },
};

#define NR_KEYWORDS (sizeof(keywords)/sizeof(struct resword))

static int is_reserved_word(register const char *str, register unsigned int len)
{
        int i;
        for (i = 0; i < NR_KEYWORDS; i++) {
                struct resword *r = keywords + i;
                int l = strlen(r->name);
                if (len == l && !memcmp(str, r->name, len))
                        return r->token;
        }
        return -1;
}