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/* Store current floating-point environment.
Copyright (C) 1997-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@tamu.edu>, 1997
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_libc.h>
int
__fegetenv (fenv_t *envp)
{
unsigned long int fpcr;
unsigned long int swcr;
/* Get status from software and hardware. Note that we don't need an
excb because the callsys is an implied trap barrier. */
swcr = __ieee_get_fp_control ();
__asm__ __volatile__ ("mf_fpcr %0" : "=f" (fpcr));
/* Merge the two bits of information. */
*envp = ((fpcr & FPCR_ROUND_MASK) | (swcr & SWCR_ALL_MASK));
/* Success. */
return 0;
}
#include <shlib-compat.h>
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__fegetenv, __old_fegetenv)
compat_symbol (libm, __old_fegetenv, fegetenv, GLIBC_2_1);
#endif
libm_hidden_def (__fegetenv)
versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);
libm_hidden_ver(__fegetenv, fegetenv)
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