80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/* Copyright (C) 2012-2015 Free Software Foundation, Inc.
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Contributed by Richard Henderson <rth@redhat.com>.
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This file is part of the GNU Atomic Library (libatomic).
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Libatomic is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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Libatomic is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#if defined(__ARM_ARCH_2__)
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# define __ARM_ARCH__ 2
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#endif
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#if defined(__ARM_ARCH_3__)
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# define __ARM_ARCH__ 3
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#endif
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#if defined(__ARM_ARCH_3M__) || defined(__ARM_ARCH_4__) \
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|| defined(__ARM_ARCH_4T__)
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/* We use __ARM_ARCH__ set to 4 here, but in reality it's any processor with
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long multiply instructions. That includes v3M. */
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# define __ARM_ARCH__ 4
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#endif
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#if defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) \
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|| defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \
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|| defined(__ARM_ARCH_5TEJ__)
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# define __ARM_ARCH__ 5
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#endif
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#if defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
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|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
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|| defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) \
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|| defined(__ARM_ARCH_6M__)
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# define __ARM_ARCH__ 6
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#endif
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#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
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|| defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
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|| defined(__ARM_ARCH_7EM__)
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# define __ARM_ARCH__ 7
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#endif
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#if defined(__ARM_ARCH_8A__)
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# define __ARM_ARCH__ 8
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#endif
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#ifndef __ARM_ARCH__
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#error Unable to determine architecture.
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#endif
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#if __ARM_ARCH__ >= 7 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
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# define HAVE_STREX 1
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# define HAVE_STREXBHD 1
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#elif __ARM_ARCH__ == 6
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# define HAVE_STREX 1
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#endif
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#if __ARM_ARCH__ >= 7
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# define HAVE_DMB 1
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#elif __ARM_ARCH__ == 6
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# define HAVE_DMB_MCR 1
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#endif
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