[Buildroot] [PATCH 6/6] toolchain-external: add Linaro ARM big endian toolchain

[Thomas Petazzoni]

Linaro has started to release ARM big endian toolchains, so we
integrate this toolchain in the external toolchain logic of
Buildroot. Since ARM big endian is probably going to be a lot more
confidential than ARM little endian, we will only support one version
at a time of this toolchain.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 toolchain/toolchain-external/Config.in             | 27 ++++++++++++++++++++++
 toolchain/toolchain-external/toolchain-external.mk | 10 +++++++-
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index 9844518..9f04595 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -74,6 +74,32 @@ comment "Linaro toolchains available for Cortex-A + EABIhf"
 	depends on BR2_GCC_TARGET_ARCH != "armv7-a" || !BR2_ARM_EABIHF
 	depends on !BR2_PREFER_STATIC_LIB
 
+config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB
+	bool "Linaro armeb 2014.02"
+	depends on BR2_armeb
+	depends on BR2_GCC_TARGET_ARCH = "armv7-a"
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on BR2_ARM_EABIHF
+	depends on !BR2_PREFER_STATIC_LIB
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
+	help
+	  Linaro toolchain for the ARM big endian architecture. It
+	  uses Linaro GCC 2014.01 (based on gcc 4.8), Linaro GDB
+	  2013.10 (based on GDB 7.6), eglibc 2.18, Binutils 2013.11
+	  (based on 2.24). It generates code that runs on all Cortex-A
+	  profile devices, but tuned for the Cortex-A9. The code
+	  generated is Thumb 2, with the hard floating point calling
+	  convention, and uses the VFPv3-D16 FPU instructions.
+
+comment "Linaro toolchains available for Cortex-A + EABIhf"
+	depends on BR2_armeb
+	depends on BR2_GCC_TARGET_ARCH != "armv7-a" || !BR2_ARM_EABIHF
+	depends on !BR2_PREFER_STATIC_LIB
+
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201311
 	bool "Sourcery CodeBench ARM 2013.11"
 	depends on BR2_arm
@@ -1028,6 +1054,7 @@ config BR2_TOOLCHAIN_EXTERNAL_PREFIX
 	default "arm-linux-gnueabihf"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_2014_02
 	default "arm-linux-gnueabihf"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_2014_01
 	default "arm-linux-gnueabihf"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_2013_12
+	default "armeb-linux-gnueabihf"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB
 	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201203
 	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201305
 	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201311
diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
index 19075cb..848cbb8 100644
--- a/toolchain/toolchain-external/toolchain-external.mk
+++ b/toolchain/toolchain-external/toolchain-external.mk
@@ -242,6 +242,11 @@ define TOOLCHAIN_EXTERNAL_LINARO_ARMHF_SYMLINK
 	ln -sf . $(TARGET_DIR)/usr/lib/arm-linux-gnueabihf
 endef
 
+define TOOLCHAIN_EXTERNAL_LINARO_ARMEBHF_SYMLINK
+	ln -sf . $(TARGET_DIR)/lib/armeb-linux-gnueabihf
+	ln -sf . $(TARGET_DIR)/usr/lib/armeb-linux-gnueabihf
+endef
+
 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201203),y)
 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi/
 TOOLCHAIN_EXTERNAL_SOURCE = arm-2012.03-57-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
@@ -276,7 +281,10 @@ TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_ARMHF
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_2014_02),y)
 TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/14.02/components/toolchain/binaries/
 TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-arm-linux-gnueabihf-4.8-2014.02_linux.tar.xz
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_ARMHF_SYMLINK
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB),y)
+TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/14.02/components/toolchain/binaries/
+TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-armeb-linux-gnueabihf-4.8-2014.02_linux.tar.xz
+TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_ARMEBHF_SYMLINK
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201209),y)
 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu/
 TOOLCHAIN_EXTERNAL_SOURCE = mips-2012.09-99-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
-- 
1.8.3.2