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c72aa4a2 | 1 | /* Set floating-point environment exception handling. |
d614a753 | 2 | Copyright (C) 1997-2020 Free Software Foundation, Inc. |
c72aa4a2 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
3214b89b AJ |
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. | |
c72aa4a2 UD |
10 | |
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 | |
3214b89b | 14 | Lesser General Public License for more details. |
c72aa4a2 | 15 | |
3214b89b | 16 | You should have received a copy of the GNU Lesser General Public |
ab84e3ff | 17 | License along with the GNU C Library. If not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
c72aa4a2 UD |
19 | |
20 | #include <fenv.h> | |
21 | #include <math.h> | |
22 | ||
146bade7 UD |
23 | int |
24 | __fesetexceptflag (const fexcept_t *flagp, int excepts) | |
c72aa4a2 UD |
25 | { |
26 | fexcept_t fpsr; | |
27 | ||
28 | /* Get the current status register. */ | |
29 | __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); | |
30 | ||
31 | /* Install the new exception bits in the Accrued Exception Byte. */ | |
32 | fpsr &= ~(excepts & FE_ALL_EXCEPT); | |
33 | fpsr |= *flagp & excepts & FE_ALL_EXCEPT; | |
34 | ||
35 | /* Store the new status register. */ | |
36 | __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr)); | |
146bade7 UD |
37 | |
38 | /* Success. */ | |
39 | return 0; | |
c72aa4a2 | 40 | } |
60446d7a RM |
41 | |
42 | #include <shlib-compat.h> | |
43 | #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) | |
146bade7 | 44 | strong_alias (__fesetexceptflag, __old_fesetexceptflag) |
60446d7a RM |
45 | compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1); |
46 | #endif | |
47 | ||
48 | versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2); |