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40 lines
1.6 KiB
C
40 lines
1.6 KiB
C
/* Macros to test for CPU features on ARM. Generic ARM version.
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Copyright (C) 2012-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _ARM_ARM_FEATURES_H
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#define _ARM_ARM_FEATURES_H 1
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/* An OS-specific arm-features.h file should define ARM_HAVE_VFP to
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an appropriate expression for testing at runtime whether the VFP
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hardware is present. We'll then redefine it to a constant if we
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know at compile time that we can assume VFP. */
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#ifndef __SOFTFP__
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/* The compiler is generating VFP instructions, so we're already
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assuming the hardware exists. */
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# undef ARM_HAVE_VFP
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# define ARM_HAVE_VFP 1
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#endif
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/* An OS-specific arm-features.h file may define ARM_ASSUME_NO_IWMMXT
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to indicate at compile time that iWMMXt hardware is never present
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at runtime (or that we never care about its state) and so need not
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be checked for. */
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#endif /* arm-features.h */
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