freebsd-dev/sys/x86/include/ifunc.h
Konstantin Belousov 7c5a46a1bc Remove resolver_qual from DEFINE_IFUNC/DEFINE_UIFUNC macros.
In all practical situations, the resolver visibility is static.

Requested by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Approved by:	so (emaste)
Differential revision:	https://reviews.freebsd.org/D20281
2019-05-16 22:20:54 +00:00

51 lines
2.2 KiB
C

/*-
* Copyright (c) 2015-2018 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Konstantin Belousov <kib@FreeBSD.org>
* under sponsorship from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef __X86_IFUNC_H
#define __X86_IFUNC_H
#define DEFINE_IFUNC(qual, ret_type, name, args) \
static ret_type (*name##_resolver(void))args __used; \
qual ret_type name args __attribute__((ifunc(#name "_resolver"))); \
static ret_type (*name##_resolver(void))args
#define DEFINE_UIFUNC(qual, ret_type, name, args) \
static ret_type (*name##_resolver(uint32_t, uint32_t, uint32_t, \
uint32_t))args __used; \
qual ret_type name args __attribute__((ifunc(#name "_resolver"))); \
static ret_type (*name##_resolver( \
uint32_t cpu_feature __unused, \
uint32_t cpu_feature2 __unused, \
uint32_t cpu_stdext_feature __unused, \
uint32_t cpu_stdext_feature2 __unused))args
#endif