| /* |
| * 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 |
| |
| #include "acle-compat.h" |
| |
| /* Checking for targets supporting only Thumb instructions (eg. ARMv6-M) or |
| supporting Thumb-2 instructions, whether ARM instructions are available or |
| not, is done many times in libgloss/arm. So factor it out and use |
| PREFER_THUMB instead. */ |
| #if __thumb2__ || (__thumb__ && !__ARM_ARCH_ISA_ARM) |
| # define PREFER_THUMB |
| #endif |
| |
| /* Processor only capable of executing Thumb-1 instructions. */ |
| #if __ARM_ARCH_ISA_THUMB == 1 && !__ARM_ARCH_ISA_ARM |
| # define THUMB1_ONLY |
| #endif |
| |
| /* M profile architectures. This is a different set of architectures than |
| those not having ARM ISA because it does not contain ARMv7. This macro is |
| necessary to test which architectures use bkpt as semihosting interface from |
| architectures using svc. */ |
| #if !__ARM_ARCH_ISA_ARM && !__ARM_ARCH_7__ |
| # define THUMB_VXM |
| #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 */ |
