mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
/* Initialize cpu feature data. PowerPC version.
|
|
Copyright (C) 2017-2018 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdint.h>
|
|
#include <cpu-features.h>
|
|
|
|
#if HAVE_TUNABLES
|
|
# include <elf/dl-tunables.h>
|
|
#endif
|
|
|
|
static inline void
|
|
init_cpu_features (struct cpu_features *cpu_features)
|
|
{
|
|
/* Default is to use aligned memory access on optimized function unless
|
|
tunables is enable, since for this case user can explicit disable
|
|
unaligned optimizations. */
|
|
#if HAVE_TUNABLES
|
|
int32_t cached_memfunc = TUNABLE_GET (glibc, tune, cached_memopt, int32_t,
|
|
NULL);
|
|
cpu_features->use_cached_memopt = (cached_memfunc > 0);
|
|
#else
|
|
cpu_features->use_cached_memopt = false;
|
|
#endif
|
|
}
|