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+/*
+ * Copyright (C) 2016-2017 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* Install given floating-point environment and raise exceptions.
+ Copyright (C) 1997-2013 Free Software Foundation, Inc.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ 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>
+
+int
+feupdateenv (const fenv_t *envp)
+{
+#ifdef __NDS32_ABI_2FP_PLUS__
+ unsigned int temp;
+
+ /* Get the current exception state. */
+ _FPU_GETCW (temp);
+
+ /* Install new environment. */
+ fesetenv (envp);
+
+ /* Raise the saved exceptions. */
+ feraiseexcept (temp & FE_ALL_EXCEPT);
+
+ /* Success. */
+ return 0;
+#else
+ /* Unsupported, so fail. */
+ return 1;
+#endif
+}