1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/powerpc/fpu/fesetmode.c b/sysdeps/powerpc/fpu/fesetmode.c
new file mode 100644
index 0000000000..32203a24ff
--- /dev/null
+++ b/sysdeps/powerpc/fpu/fesetmode.c
@@ -0,0 +1,49 @@
+/* Install given floating-point control modes.  PowerPC version.
+   Copyright (C) 2016-2018 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 <fenv_libc.h>
+#include <fpu_control.h>
+
+#define _FPU_MASK_ALL (_FPU_MASK_ZM | _FPU_MASK_OM | _FPU_MASK_UM	\
+		       | _FPU_MASK_XM | _FPU_MASK_IM)
+
+#define FPU_STATUS 0xbffff700ULL
+
+int
+fesetmode (const femode_t *modep)
+{
+  fenv_union_t old, new;
+
+  /* Logic regarding enabled exceptions as in fesetenv.  */
+
+  new.fenv = *modep;
+  old.fenv = fegetenv_register ();
+  new.l = (new.l & ~FPU_STATUS) | (old.l & FPU_STATUS);
+
+  if (old.l == new.l)
+    return 0;
+
+  if ((old.l & _FPU_MASK_ALL) == 0 && (new.l & _FPU_MASK_ALL) != 0)
+    (void) __fe_nomask_env_priv ();
+
+  if ((old.l & _FPU_MASK_ALL) != 0 && (new.l & _FPU_MASK_ALL) == 0)
+    (void) __fe_mask_env ();
+
+  fesetenv_register (new.fenv);
+  return 0;
+}