| /* Copyright (C) 2012-2021 Free Software Foundation, Inc. |
| Contributed by Richard Henderson <rth@redhat.com>. |
| |
| This file is part of the GNU Atomic Library (libatomic). |
| |
| Libatomic is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| Libatomic 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 General Public License for |
| more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| |
| #if __ARM_FEATURE_LDREX & 4 |
| # define HAVE_STREX 1 |
| #endif |
| #if (__ARM_FEATURE_LDREX & 0xF) == 0xF |
| # define HAVE_STREXBHD 1 |
| #endif |
| |
| #if __ARM_ARCH >= 7 |
| # define HAVE_DMB 1 |
| #elif __ARM_ARCH == 6 |
| # define HAVE_DMB_MCR 1 |
| #endif |
