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/* Copyright (C) 2012-2017 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 defined(__ARM_ARCH_2__)
# define __ARM_ARCH__ 2
#endif
#if defined(__ARM_ARCH_3__)
# define __ARM_ARCH__ 3
#endif
#if defined(__ARM_ARCH_3M__) || defined(__ARM_ARCH_4__) \
|| defined(__ARM_ARCH_4T__)
/* We use __ARM_ARCH__ set to 4 here, but in reality it's any processor with
long multiply instructions. That includes v3M. */
# define __ARM_ARCH__ 4
#endif
#if defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) \
|| defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \
|| defined(__ARM_ARCH_5TEJ__)
# define __ARM_ARCH__ 5
#endif
#if defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
|| defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) \
|| defined(__ARM_ARCH_6M__)
# define __ARM_ARCH__ 6
#endif
#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
|| defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
|| defined(__ARM_ARCH_7EM__)
# define __ARM_ARCH__ 7
#endif
#if defined(__ARM_ARCH_8A__)
# define __ARM_ARCH__ 8
#endif
#ifndef __ARM_ARCH__
#error Unable to determine architecture.
#endif
#if __ARM_ARCH__ >= 7 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
# define HAVE_STREX 1
# define HAVE_STREXBHD 1
#elif __ARM_ARCH__ == 6
# define HAVE_STREX 1
#endif
#if __ARM_ARCH__ >= 7
# define HAVE_DMB 1
#elif __ARM_ARCH__ == 6
# define HAVE_DMB_MCR 1
#endif
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