sysdeps/powerpc/powerpc32/e500/nofpu/fexcepts_to_prctl.c

   1 /* Convert floating-point exceptions to prctl form.
   2    Copyright (C) 2013-2016 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <fenv_libc.h>
  20 #include <sys/prctl.h>
  21
  22 /* Convert EXCEPTS from FE_* form to prctl bits, returning the
  23    converted value.  */
  24
  25 int
  26 __fexcepts_to_prctl (int excepts)
  27 {
  28   int result = 0;
  29   if (excepts & FE_INEXACT)
  30     result |= PR_FP_EXC_RES;
  31   if (excepts & FE_DIVBYZERO)
  32     result |= PR_FP_EXC_DIV;
  33   if (excepts & FE_UNDERFLOW)
  34     result |= PR_FP_EXC_UND;
  35   if (excepts & FE_OVERFLOW)
  36     result |= PR_FP_EXC_OVF;
  37   if (excepts & FE_INVALID)
  38     result |= PR_FP_EXC_INV;
  39   return result;
  40 }
  41
  42 libm_hidden_def (__fexcepts_to_prctl)