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c72aa4a2 | 1 | /* Install given floating-point environment and raise exceptions. |
2b778ceb | 2 | Copyright (C) 1997-2021 Free Software Foundation, Inc. |
c72aa4a2 | 3 | This file is part of the GNU C Library. |
c72aa4a2 UD |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
3214b89b AJ |
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. | |
c72aa4a2 UD |
9 | |
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 | |
3214b89b | 13 | Lesser General Public License for more details. |
c72aa4a2 | 14 | |
3214b89b | 15 | You should have received a copy of the GNU Lesser General Public |
ab84e3ff | 16 | License along with the GNU C Library. If not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
c72aa4a2 UD |
18 | |
19 | #include <fenv.h> | |
20 | ||
146bade7 UD |
21 | int |
22 | __feupdateenv (const fenv_t *envp) | |
c72aa4a2 UD |
23 | { |
24 | fexcept_t fpsr; | |
25 | ||
26 | /* Save current exceptions. */ | |
27 | __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); | |
28 | fpsr &= FE_ALL_EXCEPT; | |
29 | ||
30 | /* Install new environment. */ | |
cd42798a | 31 | __fesetenv (envp); |
c72aa4a2 UD |
32 | |
33 | /* Raise the saved exception. Incidently for us the implementation | |
34 | defined format of the values in objects of type fexcept_t is the | |
35 | same as the ones specified using the FE_* constants. */ | |
0747f818 | 36 | __feraiseexcept ((int) 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 (__feupdateenv, __old_feupdateenv) |
60446d7a RM |
45 | compat_symbol (libm, __old_feupdateenv, feupdateenv, GLIBC_2_1); |
46 | #endif | |
47 | ||
8116321f | 48 | libm_hidden_def (__feupdateenv) |
2e1639a8 | 49 | libm_hidden_ver (__feupdateenv, feupdateenv) |
60446d7a | 50 | versioned_symbol (libm, __feupdateenv, feupdateenv, GLIBC_2_2); |