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-rw-r--r--sysdeps/arm/feupdateenv.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/sysdeps/arm/feupdateenv.c b/sysdeps/arm/feupdateenv.c
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+++ b/sysdeps/arm/feupdateenv.c
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+/* Install given floating-point environment and raise exceptions.
+   Copyright (C) 1997-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   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>
+#include <arm-features.h>
+
+
+int
+__feupdateenv (const fenv_t *envp)
+{
+  if (ARM_HAVE_VFP)
+    {
+      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;
+    }
+
+  /* Unsupported, so fail.  */
+  return 1;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__feupdateenv, __old_feupdateenv)
+compat_symbol (libm, __old_feupdateenv, feupdateenv, GLIBC_2_1);
+#endif
+
+libm_hidden_ver (__feupdateenv, feupdateenv)
+versioned_symbol (libm, __feupdateenv, feupdateenv, GLIBC_2_2);