1 files changed, 39 insertions, 0 deletions
diff --git a/sysdeps/powerpc/cpu-features.c b/sysdeps/powerpc/cpu-features.c
new file mode 100644
index 0000000000..955d4778a6
--- /dev/null
+++ b/sysdeps/powerpc/cpu-features.c
@@ -0,0 +1,39 @@
+/* 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
+}