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38 lines
1.6 KiB
C
38 lines
1.6 KiB
C
/*
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* Copyright (c) 2004 Hewlett-Packard Development Company, L.P.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/* Definitions for architectures on which loads of given type are */
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/* atomic (either for suitably aligned data only or for any legal */
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/* alignment). */
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AO_INLINE AO_t
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AO_load(const volatile AO_t *addr)
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{
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# ifdef AO_ACCESS_CHECK_ALIGNED
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AO_ASSERT_ADDR_ALIGNED(addr);
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# endif
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/* Cast away the volatile for architectures like IA64 where */
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/* volatile adds barrier (fence) semantics. */
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return *(const AO_t *)addr;
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}
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#define AO_HAVE_load
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