2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2019 Brandon Bergren <bdragon@FreeBSD.org>
5 * Copyright (c) 2015-2018 The FreeBSD Foundation. All rights reserved.
7 * Part of this software was developed by
8 * Konstantin Belousov <kib@FreeBSD.org>
9 * under sponsorship from the FreeBSD Foundation.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #ifndef __POWERPC_IFUNC_H
36 #define __POWERPC_IFUNC_H
38 #include <sys/types.h>
40 #define DEFINE_IFUNC(qual, ret_type, name, args) \
41 static ret_type (*name##_resolver(void))args __used; \
42 qual ret_type name args __attribute__((ifunc(#name "_resolver"))); \
43 static ret_type (*name##_resolver(void))args
45 #define DEFINE_UIFUNC(qual, ret_type, name, args) \
46 static ret_type (*name##_resolver(register_t, register_t, \
47 register_t, register_t, register_t, register_t, register_t, \
48 register_t))args __used; \
49 qual ret_type name args __attribute__((ifunc(#name "_resolver"))); \
50 static ret_type (*name##_resolver( \
51 register_t cpu_features, \
52 register_t cpu_features2, \
53 register_t arg3 __unused, \
54 register_t arg4 __unused, \
55 register_t arg5 __unused, \
56 register_t arg6 __unused, \
57 register_t arg7 __unused, \
58 register_t arg8 __unused))args