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author | andrew <andrew@FreeBSD.org> | 2014-10-29 16:24:02 +0000 |
---|---|---|
committer | andrew <andrew@FreeBSD.org> | 2014-10-29 16:24:02 +0000 |
commit | f0629d0f088e0764c7bc26a56baca5b4ef8acf1d (patch) | |
tree | 8619454664cc75a8f2255ce6878703397c091972 | |
parent | 456c95b69d6b29abf5f35a1075e5e5c95c5a7d56 (diff) | |
download | FreeBSD-src-f0629d0f088e0764c7bc26a56baca5b4ef8acf1d.zip FreeBSD-src-f0629d0f088e0764c7bc26a56baca5b4ef8acf1d.tar.gz |
MFC r269956:
From https://sourceware.org/ml/newlib/2014/msg00113.html
By Richard Earnshaw at ARM
>
>GCC has for a number of years provides a set of pre-defined macros for
>use with determining the ISA and features of the target during
>pre-processing. However, the design was always somewhat cumbersome in
>that each new architecture revision created a new define and then
>removed the previous one. This meant that it was necessary to keep
>updating the support code simply to recognise a new architecture being
>added.
>
>The ACLE specification (ARM C Language Extentions)
>(http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.set.swdev/index.html)
>provides a much more suitable interface and GCC has supported this
>since gcc-4.8.
>
>This patch makes use of the ACLE pre-defines to map to the internal
>feature definitions. To support older versions of GCC a compatibility
>header is provided that maps the traditional pre-defines onto the new
>ACLE ones.
Stop using __FreeBSD_ARCH_armv6__ and switch to __ARM_ARCH >= 6 in the
couple of places in tree. clang already implements ACLE. Add a define
that says we implement version 1.1, even though the implementation
isn't quite complete.
-rw-r--r-- | lib/libc/arm/aeabi/aeabi_vfp.h | 6 | ||||
-rw-r--r-- | lib/msun/arm/fenv.c | 4 | ||||
-rw-r--r-- | sys/arm/arm/disassem.c | 3 | ||||
-rw-r--r-- | sys/arm/include/acle-compat.h | 185 | ||||
-rw-r--r-- | sys/arm/include/param.h | 5 |
5 files changed, 197 insertions, 6 deletions
diff --git a/lib/libc/arm/aeabi/aeabi_vfp.h b/lib/libc/arm/aeabi/aeabi_vfp.h index 76c2ff0..927652f 100644 --- a/lib/libc/arm/aeabi/aeabi_vfp.h +++ b/lib/libc/arm/aeabi/aeabi_vfp.h @@ -30,6 +30,8 @@ #ifndef AEABI_VFP_H #define AEABI_VFP_H +#include <machine/acle-compat.h> + /* * ASM helper macros. These allow the functions to be changed depending on * the endian-ness we are building for. @@ -49,7 +51,7 @@ * point falue. They will load the data from an ARM to a VFP register(s), * or from a VFP to an ARM register */ -#ifdef __ARMEB__ +#ifdef __ARM_BIG_ENDIAN #define LOAD_DREG(vreg, reg0, reg1) vmov vreg, reg1, reg0 #define UNLOAD_DREG(reg0, reg1, vreg) vmov reg1, reg0, vreg #else @@ -65,7 +67,7 @@ * C Helper macros */ -#if defined(__FreeBSD_ARCH_armv6__) || (defined(__ARM_ARCH) && __ARM_ARCH >= 6) +#if __ARM_ARCH >= 6 /* * Generate a function that will either call into the VFP implementation, * or the soft float version for a given __aeabi_* helper. The function diff --git a/lib/msun/arm/fenv.c b/lib/msun/arm/fenv.c index 2dd1933..16f1f48 100644 --- a/lib/msun/arm/fenv.c +++ b/lib/msun/arm/fenv.c @@ -30,7 +30,9 @@ #define __fenv_static #include "fenv.h" -#if defined(__FreeBSD_ARCH_armv6__) || (defined(__ARM_ARCH) && __ARM_ARCH >= 6) +#include <machine/acle-compat.h> + +#if __ARM_ARCH >= 6 #define FENV_ARMv6 #endif diff --git a/sys/arm/arm/disassem.c b/sys/arm/arm/disassem.c index 55ef0b2..69b8682 100644 --- a/sys/arm/arm/disassem.c +++ b/sys/arm/arm/disassem.c @@ -55,6 +55,7 @@ __FBSDID("$FreeBSD$"); #include <sys/systm.h> #include <machine/disassem.h> #include <machine/armreg.h> +#include <machine/acle-compat.h> #include <ddb/ddb.h> /* @@ -130,7 +131,7 @@ static const struct arm32_insn arm32_i[] = { { 0x0c500000, 0x04100000, "ldr", "daW" }, { 0x0c500000, 0x04400000, "strb", "daW" }, { 0x0c500000, 0x04500000, "ldrb", "daW" }, -#if defined(__FreeBSD_ARCH_armv6__) || (defined(__ARM_ARCH) && __ARM_ARCH >= 6) +#if __ARM_ARCH >= 6 { 0xffffffff, 0xf57ff01f, "clrex", "c" }, { 0x0ff00ff0, 0x01800f90, "strex", "dmo" }, { 0x0ff00fff, 0x01900f9f, "ldrex", "do" }, diff --git a/sys/arm/include/acle-compat.h b/sys/arm/include/acle-compat.h new file mode 100644 index 0000000..93e965a --- /dev/null +++ b/sys/arm/include/acle-compat.h @@ -0,0 +1,185 @@ +/* + * 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. + * + * $FreeBSD$ + */ + +#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. */ + +#define __ARM_ACLE 101 + +# 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/sys/arm/include/param.h b/sys/arm/include/param.h index d28a2b3..4a64607 100644 --- a/sys/arm/include/param.h +++ b/sys/arm/include/param.h @@ -46,13 +46,14 @@ */ #include <machine/_align.h> +#include <machine/acle-compat.h> #define STACKALIGNBYTES (8 - 1) #define STACKALIGN(p) ((u_int)(p) & ~STACKALIGNBYTES) #define __PCI_REROUTE_INTERRUPT -#if defined(__FreeBSD_ARCH_armv6__) || (defined(__ARM_ARCH) && __ARM_ARCH >= 6) +#if __ARM_ARCH >= 6 #define _V6_SUFFIX "v6" #else #define _V6_SUFFIX "" @@ -64,7 +65,7 @@ #define _HF_SUFFIX "" #endif -#ifdef __ARMEB__ +#ifdef __ARM_BIG_ENDIAN #define _EB_SUFFIX "eb" #else #define _EB_SUFFIX "" |