63 lines
2.7 KiB
C
63 lines
2.7 KiB
C
/*
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* Copyright (c) 2011 ARM Ltd
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the company may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LIBGLOSS_ARM_H
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#define _LIBGLOSS_ARM_H
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/* __thumb2__ stands for thumb on armva7(A/R/M/EM) architectures,
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__ARM_ARCH_6M__ stands for armv6-M(thumb only) architecture,
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__ARM_ARCH_7M__ stands for armv7-M(thumb only) architecture.
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__ARM_ARCH_7EM__ stands for armv7e-M(thumb only) architecture.
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There are some macro combinations used many times in libgloss/arm,
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like (__thumb2__ || (__thumb__ && __ARM_ARCH_6M__)), so factor
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it out and use THUMB_V7_V6M instead, which stands for thumb on
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v6-m/v7 arch as the combination does. */
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#if defined(__thumb2__) || (defined(__thumb__) && defined(__ARM_ARCH_6M__))
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# define THUMB_V7_V6M
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#endif
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/* The (__ARM_ARCH_7EM__ || __ARM_ARCH_7M__ || __ARM_ARCH_6M__) combination
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stands for cortex-M profile architectures, which don't support ARM state.
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Factor it out and use THUMB_V7M_V6M instead. */
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#if defined(__ARM_ARCH_7M__) \
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|| defined(__ARM_ARCH_7EM__) \
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|| defined(__ARM_ARCH_6M__)
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# define THUMB_V7M_V6M
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#endif
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/* Defined if this target supports the BLX Rm instruction. */
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#if !defined(__ARM_ARCH_2__) \
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&& !defined(__ARM_ARCH_3__) \
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&& !defined(__ARM_ARCH_3M__) \
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&& !defined(__ARM_ARCH_4__) \
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&& !defined(__ARM_ARCH_4T__)
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# define HAVE_CALL_INDIRECT
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#endif
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#endif /* _LIBGLOSS_ARM_H */
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