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