1 files changed, 63 insertions, 0 deletions
diff --git a/sysdeps/arm/fesetenv.c b/sysdeps/arm/fesetenv.c
new file mode 100644
index 0000000000..af4f25d47d
--- /dev/null
+++ b/sysdeps/arm/fesetenv.c
@@ -0,0 +1,63 @@
+/* Install given floating-point environment.
+   Copyright (C) 2004-2014 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.h>
+#include <fpu_control.h>
+#include <arm-features.h>
+
+
+int
+__fesetenv (const fenv_t *envp)
+{
+  if (ARM_HAVE_VFP)
+    {
+      unsigned int temp;
+
+      _FPU_GETCW (temp);
+      temp &= _FPU_RESERVED;
+
+      if (envp == FE_DFL_ENV)
+	temp |= _FPU_DEFAULT;
+      else if (envp == FE_NOMASK_ENV)
+	temp |= _FPU_IEEE;
+      else
+	temp |= envp->__cw & ~_FPU_RESERVED;
+
+      _FPU_SETCW (temp);
+
+      if (envp == FE_NOMASK_ENV)
+	{
+	  /* VFPv3 and VFPv4 do not support trapping exceptions, so
+	     test whether the relevant bits were set and fail if
+	     not.  */
+	  _FPU_GETCW (temp);
+	  if ((temp & _FPU_IEEE) != _FPU_IEEE)
+	    return 1;
+	}
+
+      /* Success.  */
+      return 0;
+    }
+
+  /* Unsupported, so fail.  */
+  return 1;
+}
+
+#include <shlib-compat.h>
+libm_hidden_ver (__fesetenv, fesetenv)
+versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);