diff options
Diffstat (limited to 'libm/arm/fedisblxcpt.c')
| -rw-r--r-- | libm/arm/fedisblxcpt.c | 41 | 
1 files changed, 41 insertions, 0 deletions
| diff --git a/libm/arm/fedisblxcpt.c b/libm/arm/fedisblxcpt.c new file mode 100644 index 000000000..c507e80b4 --- /dev/null +++ b/libm/arm/fedisblxcpt.c @@ -0,0 +1,41 @@ +/* Disable floating-point exceptions. +   Copyright (C) 2001-2025 Free Software Foundation, Inc. + +   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 +fedisableexcept (int excepts) +{ +  fpu_control_t fpscr, new_fpscr; + +  /* Fail if a VFP unit isn't present.  */ +  if (!ARM_HAVE_VFP) +    return -1; + +  _FPU_GETCW (fpscr); +  excepts &= FE_ALL_EXCEPT; +  new_fpscr = fpscr & ~(excepts << FE_EXCEPT_SHIFT); + +  /* Write new exceptions if changed.  */ +  if (new_fpscr != fpscr) +    _FPU_SETCW (new_fpscr); + +  return (fpscr >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT; +} | 
