1/*-
 2 * Copyright (c) 2015-2018 The FreeBSD Foundation
 3 *
 4 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
 5 * under sponsorship from the FreeBSD Foundation.
 6 *
 7 * Redistribution and use in source and binary forms, with or without
 8 * modification, are permitted provided that the following conditions
 9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef __ARM64_IFUNC_H
30#define	__ARM64_IFUNC_H
31
32#define	DEFINE_IFUNC(qual, ret_type, name, args)			\
33    static ret_type (*name##_resolver(void))args __used;		\
34    qual ret_type name args __attribute__((ifunc(#name "_resolver")));	\
35    static ret_type (*name##_resolver(void))args
36
37#define	DEFINE_UIFUNC(qual, ret_type, name, args)			\
38    static ret_type (*name##_resolver(uint64_t, uint64_t,		\
39	uint64_t, uint64_t, uint64_t, uint64_t, uint64_t,		\
40	uint64_t))args __used;						\
41    qual ret_type name args __attribute__((ifunc(#name "_resolver")));	\
42    static ret_type (*name##_resolver(uint64_t _arg1 __unused,		\
43	uint64_t _arg2 __unused, uint64_t _arg3 __unused,		\
44	uint64_t _arg4 __unused, uint64_t _arg5 __unused,		\
45	uint64_t _arg6 __unused, uint64_t _arg7 __unused,		\
46	uint64_t _arg8 __unused))args
47
48#endif