Commit 827ba465 authored by Bamvor Jian Zhang's avatar Bamvor Jian Zhang Committed by Thomas Petazzoni
Browse files

aarch64: add big endian(aarch64_be) support 



Add aarch64_be support. Note that CONFIG_CPU_BIG_ENDIAN should be
defined in kernel config when building a big endian kernel.

Signed-off-by: default avatarZhang Jian(Bamvor) <bamvor.zhangjian@huawei.com>
Acked-by: default avatarGustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 44c48b12

Makefile

+1 −1
Original line number Diff line number Diff line
@@ -329,7 +329,7 @@ KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \ 
	-e s/arcle/arc/ \

	-e s/arceb/arc/ \

	-e s/arm.*/arm/ -e s/sa110/arm/ \

	-e s/aarch64/arm64/ \

	-e s/aarch64.*/arm64/ \

	-e s/bfin/blackfin/ \

	-e s/parisc64/parisc/ \

	-e s/powerpc64.*/powerpc/ \

arch/Config.in

+10 −2
Original line number Diff line number Diff line
@@ -59,7 +59,15 @@ config BR2_armeb 
	  http://en.wikipedia.org/wiki/ARM



config BR2_aarch64

	bool "AArch64"

	bool "AArch64 (little endian)"

	select BR2_ARCH_IS_64

	help

	  Aarch64 is a 64-bit architecture developed by ARM Holdings.

	  http://www.arm.com/products/processors/instruction-set-architectures/armv8-architecture.php

	  http://en.wikipedia.org/wiki/ARM



config BR2_aarch64_be

	bool "AArch64 (big endian)"

	select BR2_ARCH_IS_64

	select BR2_ARCH_HAS_MMU_MANDATORY

	help
@@ -347,7 +355,7 @@ if BR2_arm || BR2_armeb 
source "arch/Config.in.arm"

endif



if BR2_aarch64

if BR2_aarch64 || BR2_aarch64_be

source "arch/Config.in.aarch64"

endif

arch/Config.in.aarch64

+3 −1
Original line number Diff line number Diff line 
config BR2_ARCH

	default "aarch64"	if BR2_aarch64

	default "aarch64_be"	if BR2_aarch64_be



config BR2_ENDIAN

	default "LITTLE"

	default "LITTLE" if BR2_aarch64

	default "BIG"	 if BR2_aarch64_be



config BR2_ARCH_HAS_ATOMICS

	default y

toolchain/toolchain-buildroot/Config.in

+14 −13
Original line number Diff line number Diff line
@@ -23,8 +23,8 @@ source "package/linux-headers/Config.in.host" 
choice

	prompt "C library"

	default BR2_TOOLCHAIN_UCLIBC

	default BR2_TOOLCHAIN_BUILDROOT_GLIBC if BR2_aarch64 || BR2_microblaze \

		|| BR2_mips64 || BR2_mips64el || BR2_powerpc64

	default BR2_TOOLCHAIN_BUILDROOT_GLIBC if BR2_aarch64 || BR2_aarch64_be \

		|| BR2_microblaze || BR2_mips64 || BR2_mips64el || BR2_powerpc64



config BR2_TOOLCHAIN_BUILDROOT_UCLIBC

	bool "uClibc"
@@ -43,10 +43,11 @@ config BR2_TOOLCHAIN_BUILDROOT_UCLIBC 
config BR2_TOOLCHAIN_BUILDROOT_EGLIBC

	bool "eglibc"

	depends on BR2_arm        || BR2_armeb    || BR2_aarch64    || \

		   BR2_i386   || BR2_mips     || BR2_mipsel  || \

		   BR2_mips64 || BR2_mips64el || BR2_powerpc || \

		   BR2_sh     || BR2_sh64     || BR2_sparc   || \

		   BR2_x86_64 || BR2_microblaze || BR2_powerpc64

		   BR2_aarch64_be || BR2_i386     || BR2_mips       || \

		   BR2_mipsel     || BR2_mips64   || BR2_mips64el   || \

		   BR2_powerpc    || BR2_sh       || BR2_sh64       || \

		   BR2_sparc      || BR2_x86_64   || BR2_microblaze || \

		   BR2_powerpc64

	depends on BR2_USE_MMU

	depends on !BR2_STATIC_LIBS

	depends on BR2_DEPRECATED_SINCE_2015_08
@@ -62,11 +63,11 @@ config BR2_TOOLCHAIN_BUILDROOT_EGLIBC 
config BR2_TOOLCHAIN_BUILDROOT_GLIBC

	bool "glibc"

	depends on BR2_arm         || BR2_armeb      || BR2_aarch64 || \

		   BR2_i386        || BR2_mips     || BR2_mipsel  || \

		   BR2_mips64      || BR2_mips64el || BR2_powerpc || \

		   BR2_powerpc64   || BR2_powerpc64le || BR2_sh   || \

		   BR2_sh64        || BR2_sparc    || BR2_x86_64  || \

		   BR2_microblaze  || BR2_nios2

		   BR2_aarch64_be  || BR2_i386       || BR2_mips    || \

		   BR2_mipsel      || BR2_mips64     || BR2_mips64el|| \

		   BR2_powerpc     || BR2_powerpc64  || BR2_powerpc64le || \

		   BR2_sh          || BR2_sh64       || BR2_sparc   || \

		   BR2_x86_64      || BR2_microblaze || BR2_nios2

	depends on BR2_USE_MMU

	depends on !BR2_STATIC_LIBS

	depends on !BR2_powerpc_SPE