summary refs log tree commit diff
path: root/sysdeps/arm/fegetexcept.c
blob: 2f617f53702b2b13e1aafdc7a3196fe01afba650 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/* Get floating-point exceptions.
   Copyright (C) 2001-2021 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
   <https://www.gnu.org/licenses/>.  */

#include <fenv.h>
#include <fpu_control.h>
#include <arm-features.h>


int
fegetexcept (void)
{
  fpu_control_t fpscr;

  /* Return with all exceptions disabled if a VFP unit isn't present.  */
  if (!ARM_HAVE_VFP)
    return 0;

  _FPU_GETCW (fpscr);

  return (fpscr >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT;
}