zfs-builds-mm/zfs-2.0.0-rc6/include/os/freebsd/linux/compiler.h
2020-11-15 11:35:49 +01:00

101 lines
3.2 KiB
C

/*
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iXsystems, Inc.
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2013-2016 Mellanox Technologies, Ltd.
* Copyright (c) 2015 François Tigeot
* All rights reserved.
*
* 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 unmodified, 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 ``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 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 _LINUX_COMPILER_H_
#define _LINUX_COMPILER_H_
#include <sys/cdefs.h>
#define __user
#define __kernel
#define __safe
#define __force
#define __nocast
#define __iomem
#define __chk_user_ptr(x) ((void)0)
#define __chk_io_ptr(x) ((void)0)
#define __builtin_warning(x, y...) (1)
#define __acquires(x)
#define __releases(x)
#define __acquire(x) do { } while (0)
#define __release(x) do { } while (0)
#define __cond_lock(x, c) (c)
#define __bitwise
#define __devinitdata
#define __deprecated
#define __init
#define __initconst
#define __devinit
#define __devexit
#define __exit
#define __rcu
#define __percpu
#define __weak __weak_symbol
#define __malloc
#define ___stringify(...) #__VA_ARGS__
#define __stringify(...) ___stringify(__VA_ARGS__)
#define __attribute_const__ __attribute__((__const__))
#undef __always_inline
#define __always_inline inline
#define noinline __noinline
#define ____cacheline_aligned __aligned(CACHE_LINE_SIZE)
#if !defined(_KERNEL) && !defined(_STANDALONE)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#endif
#define typeof(x) __typeof(x)
#define uninitialized_var(x) x = x
#define __maybe_unused __unused
#define __always_unused __unused
#define __must_check __result_use_check
#define __printf(a, b) __printflike(a, b)
#define barrier() __asm__ __volatile__("": : :"memory")
#define smp_rmb() rmb()
#define ___PASTE(a, b) a##b
#define __PASTE(a, b) ___PASTE(a, b)
#define ACCESS_ONCE(x) (*(volatile __typeof(x) *)&(x))
#define WRITE_ONCE(x, v) do { \
barrier(); \
ACCESS_ONCE(x) = (v); \
barrier(); \
} while (0)
#define lockless_dereference(p) READ_ONCE(p)
#define _AT(T, X) ((T)(X))
#endif /* _LINUX_COMPILER_H_ */