103 lines
3.7 KiB
C
103 lines
3.7 KiB
C
/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Berkeley Software Design, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)cdefs.h 8.8 (Berkeley) 1/9/95
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* $FreeBSD: src/sys/sys/cdefs.h,v 1.114 2011/02/18 21:44:53 nwhitehorn Exp $
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*/
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/* Do not redefine macros if the system provides them in sys/cdefs.h.
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* The two macros correspond to different platforms. */
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#ifndef _BSD_CDEFS_H_
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#define _BSD_CDEFS_H_
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/*
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* This code has been put in place to help reduce the addition of
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* compiler specific defines in FreeBSD code. It helps to aid in
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* having a compiler-agnostic source tree.
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*/
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#if defined(__GNUC__) || defined(__INTEL_COMPILER)
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#if __GNUC__ >= 3 || defined(__INTEL_COMPILER)
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#define __GNUCLIKE_ASM 3
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#else
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#define __GNUCLIKE_ASM 2
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#endif
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#define __CC_SUPPORTS___INLINE__ 1
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#endif /* __GNUC__ || __INTEL_COMPILER */
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#if defined(__STDC__) || defined(__cplusplus)
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#define __volatile volatile
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#if defined(__cplusplus)
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#define __inline inline /* convert to C++ keyword */
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#else
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#if !defined(__CC_SUPPORTS___INLINE)
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#define __inline /* delete GCC keyword */
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#endif /* ! __CC_SUPPORTS___INLINE */
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#endif /* !__cplusplus */
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#else /* !(__STDC__ || __cplusplus) */
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#if !defined(__CC_SUPPORTS___INLINE)
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#define __inline
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#define __volatile
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#endif /* !__CC_SUPPORTS___INLINE */
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#endif /* !(__STDC__ || __cplusplus) */
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/*
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* Macro to test if we're using a specific version of gcc or later.
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*/
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#ifndef __GNUC_PREREQ__
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#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
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#define __GNUC_PREREQ__(ma, mi) \
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(__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
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#else
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#define __GNUC_PREREQ__(ma, mi) 0
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#endif
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#endif /* __GNUC_PREREQ__ */
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/*
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* Compiler-dependent macro to help declare pure (no side effects) functions.
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* It is null except for versions of gcc that are known to support the features
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* properly (old versions of gcc-2 supported the dead and pure features
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* in a different (wrong) way), and for icc. If we do not provide an implementation
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* for a given compiler, let the compile fail if it is told to use
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* a feature that we cannot live without.
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*/
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#if !defined(__pure2) && (__GNUC_PREREQ__(2, 7) || defined(__INTEL_COMPILER))
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#define __pure2 __attribute__((__const__))
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#endif
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#endif /* !_BSD_CDEFS_H_ */
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