| /* Install given floating-point environment and raise exceptions for |
| atomic compound assignment. e500 version. |
| Copyright (C) 2004-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <fenv_libc.h> |
| #include <stdlib.h> |
| #include <sysdep.h> |
| #include <sys/prctl.h> |
| |
| void |
| __atomic_feupdateenv (const fenv_t *envp) |
| { |
| int exc; |
| fenv_union_t u; |
| INTERNAL_SYSCALL_DECL (err); |
| int r; |
| |
| /* Save the currently set exceptions. */ |
| exc = fegetenv_register () & SPEFSCR_ALL_EXCEPT; |
| |
| u.fenv = *envp; |
| |
| fesetenv_register (u.l[1]); |
| r = INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC, |
| u.l[0] | PR_FP_EXC_SW_ENABLE); |
| if (INTERNAL_SYSCALL_ERROR_P (r, err)) |
| abort (); |
| |
| /* Raise (if appropriate) saved exceptions. */ |
| __feraiseexcept_soft (exc); |
| } |
