forked from Imagelibrary/rtems
58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup TestsuitesUnitNoClock0
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*/
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/*
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* Copyright (C) 2019 embedded brains GmbH (http://www.embedded-brains.de)
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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 COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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* 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 <string.h>
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#include <rtems.h>
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#include <rtems/test.h>
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T_TEST_CASE(MisalignedBuiltinMemcpy)
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{
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double a;
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double b;
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char buf[2 * sizeof(double)];
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void *p;
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p = &buf[0];
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p = (void *)((uintptr_t)p | 1);
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RTEMS_OBFUSCATE_VARIABLE(p);
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a = 123e4;
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RTEMS_OBFUSCATE_VARIABLE(a);
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a *= a;
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memcpy(p, &a, sizeof(a));
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RTEMS_OBFUSCATE_VARIABLE(p);
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memcpy(&b, p, sizeof(b));
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T_eq(a, b, "%f == %f", a, b);
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}
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