Differential D2057 Diff 4204 sys/arm64/include/_align.h

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sys/arm64/include/_align.h

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				/*-
				* Copyright (c) 1990 The Regents of the University of California.
				* All rights reserved.
				*
				* This code is derived from software contributed to Berkeley by
				* William Jolitz.
				*
				* 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 REGENTS 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 REGENTS 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.
				*
				* from: @(#)param.h 5.8 (Berkeley) 6/28/91
				* $FreeBSD$
				*/

				#ifndef _ARM64_INCLUDE__ALIGN_H_
				#define _ARM64_INCLUDE__ALIGN_H_

				/*
				* Round p (pointer or byte index) up to a correctly-aligned value
				* for all data types (int, long, ...). The result is unsigned int
				* and must be cast to any desired pointer type.
				*/
				#define _ALIGNBYTES (sizeof(long long) - 1)
				emasteUnsubmitted Not Done Inline Actions FWIW NetBSD #defines `__ALIGNBYTES` in sys/arch/<arch>/include/cdefs.h They also avoid the arch name in the header guard, which seems reasonable to me (e.g. `_MACHINE_CDFES_H_ for this define) - it would make finding duplicates easier. emaste: FWIW NetBSD #defines `__ALIGNBYTES` in sys/arch/<arch>/include/cdefs.h They also avoid the…
				#define _ALIGN(p) (((u_long)(p) + _ALIGNBYTES) & ~_ALIGNBYTES)

				#endif /* !_ARM64_INCLUDE__ALIGN_H_ */