From f9a3814899346f092851ba90cd6d199efb9f78ff Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Mon, 10 Oct 2011 13:00:25 +0000 Subject: * libc/sys/arm/crt0.S: Synchronise with libgloss version. * libc/sys/arm/arm.h: Imported from libgloss. --- newlib/libc/sys/arm/arm.h | 62 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 newlib/libc/sys/arm/arm.h (limited to 'newlib/libc/sys') diff --git a/newlib/libc/sys/arm/arm.h b/newlib/libc/sys/arm/arm.h new file mode 100644 index 000000000..26a1ff110 --- /dev/null +++ b/newlib/libc/sys/arm/arm.h @@ -0,0 +1,62 @@ +/* + * 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 */ -- cgit v1.2.3