0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/* $NetBSD: atomic_load.c,v 1.2 2014/07/06 01:19:45 joerg Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: atomic_load.c,v 1.2 2014/07/06 01:19:45 joerg Exp $");
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#include "atomic_op_namespace.h"
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#include <sys/types.h>
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#include <sys/atomic.h>
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#define atomic_load_n(n,b) \
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uint ## b ## _t __atomic_load_ ## n(volatile uint ## b ## _t *, int); \
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uint ## b ## _t \
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__atomic_load_ ## n(volatile uint ## b ## _t *ptr, int memmodel) \
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{ \
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uint## b ##_t val; \
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membar_enter(); \
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val = *ptr; \
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membar_exit(); \
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return val; \
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}
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atomic_load_n(1, 8)
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atomic_load_n(2, 16)
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atomic_load_n(4, 32)
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#ifdef __HAVE_ATOMIC_CAS_64_UP
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atomic_load_n(8, 64)
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#endif
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