1 /* Store current floating-point environment.
2 Copyright (C) 1997-2014 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Richard Henderson <rth@tamu.edu>, 1997
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library. If not, see
18 <http://www.gnu.org/licenses/>. */
20 #include <fenv_libc.h>
23 __fegetenv (fenv_t
*envp
)
25 unsigned long int fpcr
;
26 unsigned long int swcr
;
28 /* Get status from software and hardware. Note that we don't need an
29 excb because the callsys is an implied trap barrier. */
30 swcr
= __ieee_get_fp_control ();
31 __asm__
__volatile__ ("mf_fpcr %0" : "=f" (fpcr
));
33 /* Merge the two bits of information. */
34 *envp
= ((fpcr
& FPCR_ROUND_MASK
) | (swcr
& SWCR_ALL_MASK
));
40 #include <shlib-compat.h>
41 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
42 strong_alias (__fegetenv
, __old_fegetenv
)
43 compat_symbol (libm
, __old_fegetenv
, fegetenv
, GLIBC_2_1
);
46 versioned_symbol (libm
, __fegetenv
, fegetenv
, GLIBC_2_2
);
47 libm_hidden_ver(__fegetenv
, fegetenv
)