| /* Enable floating-point exceptions. |
| Copyright (C) 2001, 2005 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Philip Blundell <philb@gnu.org>, 2001. |
| |
| 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 General Public License |
| along with GCC; see the file COPYING. If not, write to the Free |
| Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301, USA. */ |
| |
| #include <fenv.h> |
| #include <fpu_control.h> |
| |
| #include <unistd.h> |
| #include <ldsodefs.h> |
| #include <dl-procinfo.h> |
| #include <sysdep.h> |
| |
| int |
| feenableexcept (int excepts) |
| { |
| if (GLRO (dl_hwcap) & HWCAP_ARM_VFP) |
| { |
| unsigned long int new_exc, old_exc; |
| |
| _FPU_GETCW(new_exc); |
| |
| old_exc = (new_exc >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT; |
| |
| excepts &= FE_ALL_EXCEPT; |
| |
| new_exc |= (excepts << FE_EXCEPT_SHIFT); |
| |
| _FPU_SETCW(new_exc); |
| |
| return old_exc; |
| } |
| |
| /* Unsupported, so return -1 for failure. */ |
| return -1; |
| } |