glibc/sysdeps/arm/eabi/fegetexcept.c

/* Get floating-point exceptions.
   Copyright (C) 2001, 2005 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Philip Blundell <philb@gnu.org>, 2001

   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 General Public License
   along with GCC; see the file COPYING.  If not, write to the Free
   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301, USA.  */

#include <fenv.h>
#include <fpu_control.h>

#include <unistd.h>
#include <ldsodefs.h>
#include <dl-procinfo.h>
#include <sysdep.h>

int
fegetexcept (void)
{
  if (GLRO (dl_hwcap) & HWCAP_ARM_VFP)
    {
      unsigned long temp;

      _FPU_GETCW (temp);

      return (temp >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT;
    }

  /* Unsupported. Return all exceptions disabled.  */
  return 0;
}