7e30e94394
restore ABI compatibility with previous releases for ieeefp.h on sh3. add namespace.h protection for all the fenv interfaces. use MKSOFTFLOAT on sh3 instead of assuming softfloat. standardize on comparing MKSOFTFLOAT with "no". remove the arm-specific softfloat fenv code (which also had several bugs). fix logic errors in the arm hardfloat feraiseexcept() and feupdateenv().
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/* $NetBSD: feholdexcept.c,v 1.1 2017/03/22 23:11:09 chs Exp $ */
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/*-
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* Copyright (c) 2017 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Chuck Silvers.
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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: feholdexcept.c,v 1.1 2017/03/22 23:11:09 chs Exp $");
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#include "namespace.h"
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#include <fenv.h>
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#include <ieeefp.h>
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#ifdef __weak_alias
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__weak_alias(feholdexcept,_feholdexcept)
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#endif
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int
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feholdexcept(fenv_t *envp)
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{
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__FENV_SET_FLAGS(envp, fpgetsticky());
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__FENV_SET_MASK(envp, fpgetmask());
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__FENV_SET_ROUND(envp, fpgetround());
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fpsetsticky(0);
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fpsetmask(0);
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return 0;
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}
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