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-rw-r--r--ports/sysdeps/arm/fclrexcpt.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/ports/sysdeps/arm/fclrexcpt.c b/ports/sysdeps/arm/fclrexcpt.c
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index 0000000000..ddedc3573c
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+++ b/ports/sysdeps/arm/fclrexcpt.c
@@ -0,0 +1,60 @@
+/* Clear given exceptions in current floating-point environment.
+   Copyright (C) 1997,98,99,2000,01,05,11 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 <unistd.h>
+#include <ldsodefs.h>
+#include <dl-procinfo.h>
+#include <sysdep.h>
+
+int
+__feclearexcept (int excepts)
+{
+  if (GLRO (dl_hwcap) & HWCAP_ARM_VFP)
+    {
+      unsigned long int temp;
+
+      /* Mask out unsupported bits/exceptions.  */
+      excepts &= FE_ALL_EXCEPT;
+
+      /* Get the current floating point status. */
+      _FPU_GETCW (temp);
+
+      /* Clear the relevant bits.  */
+      temp = (temp & ~FE_ALL_EXCEPT) | (temp & FE_ALL_EXCEPT & ~excepts);
+
+      /* Put the new data in effect.  */
+      _FPU_SETCW (temp);
+
+      /* Success.  */
+      return 0;
+    }
+
+  /* Unsupported, so fail unless nothing needs to be done.  */
+  return (excepts != 0);
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__feclearexcept, __old_feclearexcept)
+compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1);
+#endif
+
+versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);