| /* Procedure definition for FE_MASK_ENV for Linux/ppc64. |
| Copyright (C) 2007 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, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <fenv.h> |
| #include <errno.h> |
| #include <sysdep.h> |
| #include <sys/syscall.h> |
| #include <sys/prctl.h> |
| #include <kernel-features.h> |
| |
| const fenv_t * |
| __fe_mask_env (void) |
| { |
| #if defined PR_SET_FPEXC && defined PR_FP_EXC_DISABLED |
| int result; |
| INTERNAL_SYSCALL_DECL (err); |
| result = INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC, PR_FP_EXC_DISABLED); |
| # ifndef __ASSUME_NEW_PRCTL_SYSCALL |
| if (INTERNAL_SYSCALL_ERROR_P (result, err) |
| && INTERNAL_SYSCALL_ERRNO (result, err) == EINVAL) |
| __set_errno (ENOSYS); |
| # endif |
| #else |
| __set_errno (ENOSYS); |
| #endif |
| return FE_DFL_ENV; |
| } |
