1 /* Store current representation for exceptions.
2 Copyright (C) 1997-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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 <https://www.gnu.org/licenses/>. */
22 #include <dl-procinfo.h>
26 __fegetexceptflag (fexcept_t
*flagp
, int excepts
)
30 /* Get the current exceptions. */
31 __asm__ ("fnstsw %0" : "=m" (*&temp
));
33 *flagp
= temp
& excepts
& FE_ALL_EXCEPT
;
35 /* If the CPU supports SSE, we clear the MXCSR as well. */
36 if (CPU_FEATURE_USABLE (SSE
))
40 /* Get the current MXCSR. */
41 __asm__ ("stmxcsr %0" : "=m" (*&sse_exc
));
43 *flagp
|= sse_exc
& excepts
& FE_ALL_EXCEPT
;
50 #include <shlib-compat.h>
51 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
52 strong_alias (__fegetexceptflag
, __old_fegetexceptflag
)
53 compat_symbol (libm
, __old_fegetexceptflag
, fegetexceptflag
, GLIBC_2_1
);
56 versioned_symbol (libm
, __fegetexceptflag
, fegetexceptflag
, GLIBC_2_2
);