Blame sysdeps/powerpc/cpu-features.c

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/* Initialize cpu feature data.  PowerPC version.
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   Copyright (C) 2017-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <stdint.h>
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#include <cpu-features.h>
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#if HAVE_TUNABLES
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# include <elf/dl-tunables.h>
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#endif
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static inline void
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init_cpu_features (struct cpu_features *cpu_features)
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{
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  /* Default is to use aligned memory access on optimized function unless
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     tunables is enable, since for this case user can explicit disable
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     unaligned optimizations.  */
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#if HAVE_TUNABLES
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  int32_t cached_memfunc = TUNABLE_GET (glibc, cpu, cached_memopt, int32_t,
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					NULL);
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  cpu_features->use_cached_memopt = (cached_memfunc > 0);
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#else
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  cpu_features->use_cached_memopt = false;
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#endif
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}