1/*-
2 * Copyright (c) 2015-2018 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
6 * under sponsorship from the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31
32#ifndef __X86_IFUNC_H
33#define	__X86_IFUNC_H
34
35#define	DEFINE_IFUNC(qual, ret_type, name, args, resolver_qual)		\
36    resolver_qual ret_type (*name##_resolver(void))args __used;		\
37    qual ret_type name args __attribute__((ifunc(#name "_resolver")));	\
38    resolver_qual ret_type (*name##_resolver(void))args
39
40#define	DEFINE_UIFUNC(qual, ret_type, name, args, resolver_qual)	\
41    resolver_qual ret_type (*name##_resolver(uint32_t, uint32_t,	\
42	uint32_t, uint32_t))args __used;				\
43    qual ret_type name args __attribute__((ifunc(#name "_resolver")));	\
44    resolver_qual ret_type (*name##_resolver(				\
45	uint32_t cpu_feature __unused,					\
46	uint32_t cpu_feature2 __unused,					\
47	uint32_t cpu_stdext_feature __unused,				\
48	uint32_t cpu_stdext_feature2 __unused))args
49
50#endif
51