keywords.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2static 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	{ "__typeof_unqual", TYPEOF_KEYW },
21	{ "__typeof_unqual__", TYPEOF_KEYW },
22	{ "__volatile", VOLATILE_KEYW },
23	{ "__volatile__", VOLATILE_KEYW },
24	{ "__builtin_va_list", VA_LIST_KEYW },
25
26	{ "__int128", BUILTIN_INT_KEYW },
27	{ "__int128_t", BUILTIN_INT_KEYW },
28	{ "__uint128_t", BUILTIN_INT_KEYW },
29
30	// According to rth, c99 defines "_Bool", "__restrict", "__restrict__", "restrict".  KAO
31	{ "_Bool", BOOL_KEYW },
32	{ "__restrict", RESTRICT_KEYW },
33	{ "__restrict__", RESTRICT_KEYW },
34	{ "restrict", RESTRICT_KEYW },
35	{ "asm", ASM_KEYW },
36
37	// c11 keywords that can be used at module scope
38	{ "_Static_assert", STATIC_ASSERT_KEYW },
39
40	// attribute commented out in modutils 2.4.2.  People are using 'attribute' as a
41	// field name which breaks the genksyms parser.  It is not a gcc keyword anyway.
42	// KAO. },
43	// { "attribute", ATTRIBUTE_KEYW },
44
45	// X86 named address space qualifiers
46	{ "__seg_gs", X86_SEG_KEYW },
47	{ "__seg_fs", X86_SEG_KEYW },
48
49	{ "auto", AUTO_KEYW },
50	{ "char", CHAR_KEYW },
51	{ "const", CONST_KEYW },
52	{ "double", DOUBLE_KEYW },
53	{ "enum", ENUM_KEYW },
54	{ "extern", EXTERN_KEYW },
55	{ "float", FLOAT_KEYW },
56	{ "inline", INLINE_KEYW },
57	{ "int", INT_KEYW },
58	{ "long", LONG_KEYW },
59	{ "register", REGISTER_KEYW },
60	{ "short", SHORT_KEYW },
61	{ "signed", SIGNED_KEYW },
62	{ "static", STATIC_KEYW },
63	{ "struct", STRUCT_KEYW },
64	{ "typedef", TYPEDEF_KEYW },
65	{ "typeof", TYPEOF_KEYW },
66	{ "typeof_unqual", TYPEOF_KEYW },
67	{ "union", UNION_KEYW },
68	{ "unsigned", UNSIGNED_KEYW },
69	{ "void", VOID_KEYW },
70	{ "volatile", VOLATILE_KEYW },
71};
72
73#define NR_KEYWORDS (sizeof(keywords)/sizeof(struct resword))
74
75static int is_reserved_word(register const char *str, register unsigned int len)
76{
77	int i;
78	for (i = 0; i < NR_KEYWORDS; i++) {
79		struct resword *r = keywords + i;
80		int l = strlen(r->name);
81		if (len == l && !memcmp(str, r->name, len))
82			return r->token;
83	}
84	return -1;
85}