projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| c72aa4a2 | 1 | /* Install given floating-point environment and raise exceptions. |
| 688903eb | 2 | Copyright (C) 1997-2018 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 PE |
17 | License along with the GNU C Library. If not, see |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| c72aa4a2 UD |
19 | |
| 20 | #include <fenv.h> | |
| 21 | ||
| 146bade7 UD |
22 | int |
| 23 | __feupdateenv (const fenv_t *envp) | |
| c72aa4a2 UD |
24 | { |
| 25 | fexcept_t fpsr; | |
| 26 | ||
| 27 | /* Save current exceptions. */ | |
| 28 | __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); | |
| 29 | fpsr &= FE_ALL_EXCEPT; | |
| 30 | ||
| 31 | /* Install new environment. */ | |
| cd42798a | 32 | __fesetenv (envp); |
| c72aa4a2 UD |
33 | |
| 34 | /* Raise the saved exception. Incidently for us the implementation | |
| 35 | defined format of the values in objects of type fexcept_t is the | |
| 36 | same as the ones specified using the FE_* constants. */ | |
| 0747f818 | 37 | __feraiseexcept ((int) fpsr); |
| 146bade7 UD |
38 | |
| 39 | /* Success. */ | |
| 40 | return 0; | |
| c72aa4a2 | 41 | } |
| 60446d7a RM |
42 | |
| 43 | #include <shlib-compat.h> | |
| 44 | #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) | |
| 146bade7 | 45 | strong_alias (__feupdateenv, __old_feupdateenv) |
| 60446d7a RM |
46 | compat_symbol (libm, __old_feupdateenv, feupdateenv, GLIBC_2_1); |
| 47 | #endif | |
| 48 | ||
| 8116321f | 49 | libm_hidden_def (__feupdateenv) |
| 2e1639a8 | 50 | libm_hidden_ver (__feupdateenv, feupdateenv) |
| 60446d7a | 51 | versioned_symbol (libm, __feupdateenv, feupdateenv, GLIBC_2_2); |