diff --git a/newlib/ChangeLog b/newlib/ChangeLog index 86cac3a4e..84e39565c 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,8 @@ +2014-03-27 Richard Earnshaw + + * libc/machine/arm/acle-compat.h: New file. + * libc/machine/arm/arm_asm.h: Use it. + 2014-03-21 Maciej W. Rozycki * libc/stdlib/gd_qnan.h (f_QNAN, d_QNAN0, d_QNAN1): Add MIPS diff --git a/newlib/libc/machine/arm/acle-compat.h b/newlib/libc/machine/arm/acle-compat.h new file mode 100644 index 000000000..888ae2ea8 --- /dev/null +++ b/newlib/libc/machine/arm/acle-compat.h @@ -0,0 +1,182 @@ +/* + * Copyright (c) 2014 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 __ARM_ARCH + +/* ACLE standardises a set of pre-defines that describe the ARM architecture. + These were mostly implemented in GCC around GCC-4.8; older versions + have no, or only partial support. To provide a level of backwards + compatibility we try to work out what the definitions should be, given + the older pre-defines that GCC did produce. This isn't complete, but + it should be enough for use by routines that depend on this header. */ + +/* No need to handle ARMv8, GCC had ACLE support before that. */ + +# ifdef __ARM_ARCH_7__ +/* The common subset of ARMv7 in all profiles. */ +# define __ARM_ARCH 7 +# define __ARM_ARCH_ISA_THUMB 2 +# define __ARM_FEATURE_CLZ +# define __ARM_FEATURE_LDREX 7 +# define __ARM_FEATURE_UNALIGNED +# endif + +# if defined (__ARM_ARCH_7A__) || defined (__ARM_ARCH_7R__) +# define __ARM_ARCH 7 +# define __ARM_ARCH_ISA_THUMB 2 +# define __ARM_ARCH_ISA_ARM +# define __ARM_FEATURE_CLZ +# define __ARM_FEATURE_SIMD32 +# define __ARM_FEATURE_DSP +# define __ARM_FEATURE_QBIT +# define __ARM_FEATURE_SAT +# define __ARM_FEATURE_LDREX 15 +# define __ARM_FEATURE_UNALIGNED +# ifdef __ARM_ARCH_7A__ +# define __ARM_ARCH_PROFILE 'A' +# else +# define __ARM_ARCH_PROFILE 'R' +# endif +# endif + +# ifdef __ARM_ARCH_7EM__ +# define __ARM_ARCH 7 +# define __ARM_ARCH_ISA_THUMB 2 +# define __ARM_FEATURE_CLZ +# define __ARM_FEATURE_SIMD32 +# define __ARM_FEATURE_DSP +# define __ARM_FEATURE_QBIT +# define __ARM_FEATURE_SAT +# define __ARM_FEATURE_LDREX 7 +# define __ARM_FEATURE_UNALIGNED +# define __ARM_ARCH_PROFILE 'M' +# endif + +# ifdef __ARM_ARCH_7M__ +# define __ARM_ARCH 7 +# define __ARM_ARCH_ISA_THUMB 2 +# define __ARM_FEATURE_CLZ +# define __ARM_FEATURE_QBIT +# define __ARM_FEATURE_SAT +# define __ARM_FEATURE_LDREX 7 +# define __ARM_FEATURE_UNALIGNED +# define __ARM_ARCH_PROFILE 'M' +# endif + +# ifdef __ARM_ARCH_6T2__ +# define __ARM_ARCH 6 +# define __ARM_ARCH_ISA_THUMB 2 +# define __ARM_ARCH_ISA_ARM +# define __ARM_FEATURE_CLZ +# define __ARM_FEATURE_SIMD32 +# define __ARM_FEATURE_DSP +# define __ARM_FEATURE_QBIT +# define __ARM_FEATURE_SAT +# define __ARM_FEATURE_LDREX 4 +# define __ARM_FEATURE_UNALIGNED +# endif + +# ifdef __ARM_ARCH_6M__ +# define __ARM_ARCH 6 +# define __ARM_ARCH_ISA_THUMB 1 +# define __ARM_ARCH_PROFILE 'M' +# endif + +# if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) \ + || defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6Z__) \ + || defined (__ARM_ARCH_6ZK__) +# define __ARM_ARCH 6 +# define __ARM_ARCH_ISA_THUMB 1 +# define __ARM_ARCH_ISA_ARM +# define __ARM_FEATURE_CLZ +# define __ARM_FEATURE_SIMD32 +# define __ARM_FEATURE_DSP +# define __ARM_FEATURE_QBIT +# define __ARM_FEATURE_SAT +# define __ARM_FEATURE_UNALIGNED +# ifndef __thumb__ +# if defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6ZK__) +# define __ARM_FEATURE_LDREX 15 +# else +# define __ARM_FEATURE_LDREX 4 +# endif +# endif +# endif + +# if defined (__ARM_ARCH_5TE__) || defined (__ARM_ARCH_5E__) +# define __ARM_ARCH 5 +# define __ARM_ARCH_ISA_ARM +# ifdef __ARM_ARCH_5TE__ +# define __ARM_ARCH_ISA_THUMB 1 +# endif +# define __ARM_FEATURE_CLZ +# define __ARM_FEATURE_DSP +# endif + +# if defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5__) +# define __ARM_ARCH 5 +# define __ARM_ARCH_ISA_ARM +# ifdef __ARM_ARCH_5TE__ +# define __ARM_ARCH_ISA_THUMB 1 +# endif +# define __ARM_FEATURE_CLZ +# endif + +# ifdef __ARM_ARCH_4T__ +# define __ARM_ARCH 4 +# define __ARM_ARCH_ISA_ARM +# define __ARM_ARCH_ISA_THUMB 1 +# endif + +# ifdef __ARM_ARCH_4__ +# define __ARM_ARCH 4 +# define __ARM_ARCH_ISA_ARM +# endif + +# if defined (__ARM_ARCH_3__) || defined (__ARM_ARCH_3M__) +# define __ARM_ARCH 3 +# define __ARM_ARCH_ISA_ARM +# endif + +# ifdef __ARM_ARCH_2__ +# define __ARM_ARCH 2 +# define __ARM_ARCH_ISA_ARM +# endif + +# ifdef __ARMEB__ +# define __ARM_BIG_ENDIAN +# endif + +/* If we still don't know what the target architecture is, then we're + probably not using GCC. */ +# ifndef __ARM_ARCH +# error Unable to determine architecture version. +# endif + +#endif /* __ARM_ARCH */ + diff --git a/newlib/libc/machine/arm/arm_asm.h b/newlib/libc/machine/arm/arm_asm.h index 5a63a8d9e..1bb5edb23 100644 --- a/newlib/libc/machine/arm/arm_asm.h +++ b/newlib/libc/machine/arm/arm_asm.h @@ -29,35 +29,35 @@ #ifndef ARM_ASM__H #define ARM_ASM__H -/* First define some macros that keep everything else sane. */ -#if defined (__ARM_ARCH_7A__) || defined (__ARM_ARCH_7R__) -#define _ISA_ARM_7 +#include "acle-compat.h" + +#if __ARM_ARCH >= 7 && defined (__ARM_ARCH_ISA_ARM) +# define _ISA_ARM_7 #endif -#if defined (_ISA_ARM_7) || defined (__ARM_ARCH_6__) || \ - defined (__ARM_ARCH_6J__) || defined (__ARM_ARCH_6T2__) || \ - defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6ZK__) || \ - defined (__ARM_ARCH_6Z__) -#define _ISA_ARM_6 +#if __ARM_ARCH >= 6 && defined (__ARM_ARCH_ISA_ARM) +# define _ISA_ARM_6 #endif -#if defined (_ISA_ARM_6) || defined (__ARM_ARCH_5__) || \ - defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5TE__) || \ - defined (__ARM_ARCH_5TEJ__) -#define _ISA_ARM_5 +#if __ARM_ARCH >= 5 +# define _ISA_ARM_5 #endif -#if defined (_ISA_ARM_5) || defined (__ARM_ARCH_4T__) -#define _ISA_ARM_4T +#if __ARM_ARCH >= 4 && __ARM_ARCH_ISA_THUMB >= 1 +# define _ISA_ARM_4T #endif -#if defined (__ARM_ARCH_7M__) || defined (__ARM_ARCH_7__) || \ - defined (__ARM_ARCH_7EM__) -#define _ISA_THUMB_2 +#if __ARM_ARCH >= 4 && __ARM_ARCH_ISA_THUMB == 0 +# define _ISA_ARM_4 #endif -#if defined (_ISA_THUMB_2) || defined (__ARM_ARCH_6M__) -#define _ISA_THUMB_1 + +#if __ARM_ARCH_ISA_THUMB >= 2 +# define _ISA_THUMB_2 +#endif + +#if __ARM_ARCH_ISA_THUMB >= 1 +# define _ISA_THUMB_1 #endif