2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2015 François Tigeot
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #ifndef _LINUX_COMPILER_H_
31 #define _LINUX_COMPILER_H_
33 #include <sys/cdefs.h>
41 #define __chk_user_ptr(x) 0
42 #define __chk_io_ptr(x) 0
43 #define __builtin_warning(x, y...) (1)
46 #define __acquire(x) 0
47 #define __release(x) 0
48 #define __cond_lock(x,c) (c)
55 #define __stringify(x) #x
56 #define __attribute_const__ __attribute__((__const__))
57 #undef __always_inline
58 #define __always_inline inline
60 #define likely(x) __builtin_expect(!!(x), 1)
61 #define unlikely(x) __builtin_expect(!!(x), 0)
62 #define typeof(x) __typeof(x)
65 #define __always_unused __unused
66 #define __must_check __heedresult
68 #define __printf(a,b) __printflike(a,b)
71 #define barrier() cpu_ccfence()
73 #define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
75 #endif /* _LINUX_COMPILER_H_ */