/*-
 * Copyright (c) 2010 Isilon Systems, Inc.
 * Copyright (c) 2010 iX Systems, Inc.
 * Copyright (c) 2010 Panasas, Inc.
 * Copyright (c) 2013-2016 Mellanox Technologies, Ltd.
 * Copyright (c) 2015-2020 François Tigeot <ftigeot@wolfpond.org>
 * 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.
 */

#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)               0
#define __chk_io_ptr(x)                 0
#define __builtin_warning(x, y...)      (1)
#define __acquires(x)
#define __releases(x)
#define __acquire(x)                    0
#define __release(x)                    0
#define __cond_lock(x,c)                (c)
#define __bitwise
#define __devinitdata
#define __init
#define __devinit
#define __devexit
#define __exit
#define __stringify(x)                  #x
#define __attribute_const__             __attribute__((__const__))

#define noinline                        __noinline
#define likely(x)                       __predict_true(x)
#define unlikely(x)                     __predict_false(x)
#define typeof(x)                       __typeof(x)

#define __maybe_unused                  __unused
#define __always_unused                 __unused
#define __malloc
#define __must_check                    __heedresult

#define __printf(a,b)                   __printf0like(a,b)

#define barrier()                       __asm__ __volatile__("": : :"memory")

#ifdef _KERNEL          /* This file is included by kdump(1) */

#include <sys/param.h>

#define READ_ONCE(x) ({                                                 \
        typeof(x) __tmp = *(volatile typeof(x) *)&(x);                  \
        __tmp;                                                          \
})

#define WRITE_ONCE(x, val) ({                                           \
        typeof(x) __tmp = (val);                                        \
        *(volatile typeof(x) *)(uintptr_t)&(x) = __tmp;                         \
        __tmp;                                                          \
})

#define __rcu

/* Workaround to protect from the 'DEBUG' kernel config option */
#undef DEBUG

#endif  /* __KERNEL__ */

#define GCC_VERSION     \
        (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)

#ifndef unreachable
#define unreachable()                   \
do {                                    \
        __asm __volatile("");           \
        __builtin_unreachable();        \
} while (0)
#endif

#endif  /* _LINUX_COMPILER_H_ */