projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d5efd131 | 1 | /* Install given floating-point environment. |
| 688903eb | 2 | Copyright (C) 1997-2018 Free Software Foundation, Inc. |
| d5efd131 MF |
3 | This file is part of the GNU C Library. |
| 4 | Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>, 2000 | |
| 5 | ||
| 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. | |
| 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 | |
| 14 | Lesser General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Lesser General Public | |
| 75efb018 MF |
17 | License along with the GNU C Library; if not, see |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| d5efd131 MF |
19 | |
| 20 | #include <fenv.h> | |
| 21 | ||
| 22 | int | |
| cd42798a | 23 | __fesetenv (const fenv_t *envp) |
| d5efd131 MF |
24 | { |
| 25 | fenv_t env; | |
| 26 | ||
| 27 | /* | |
| 28 | This stinks! | |
| 29 | Magic encoding of default values: bit 62+63 set (which will never | |
| 30 | happen for a user-space address) means it's not indirect. | |
| 31 | */ | |
| 32 | if (((fenv_t) envp >> 62) == 0x03) | |
| 33 | env = (fenv_t) envp & 0x3fffffffffffffff; | |
| 34 | else | |
| 35 | env = *envp; | |
| 36 | ||
| 37 | __asm__ __volatile__ ("mov.m ar.fpsr=%0;;" :: "r" (env)); | |
| 38 | ||
| 39 | return 0; | |
| 40 | } | |
| cd42798a JM |
41 | libm_hidden_def (__fesetenv) |
| 42 | weak_alias (__fesetenv, fesetenv) | |
| 43 | libm_hidden_weak (fesetenv) |