toolchain-external: CodeSourcery ARM: support only one version

See the conclusion about external toolchains during the Buildroot
meeting [1]:
"In the future, we stick to a single external toolchain version. The
Kconfig symbol should not encode the version (avoid legacy handling)"

[1] http://elinux.org/index.php?title=Buildroot:DeveloperDaysELCE2015#Report

Signed-off-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

toolchain/toolchain-external/Config.in

@@ -101,7 +101,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB
 	  generated is Thumb 2, with the hard floating point calling
 	  convention, and uses the VFPv3-D16 FPU instructions.
 
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201405
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM
 	bool "Sourcery CodeBench ARM 2014.05"
 	depends on BR2_arm
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
@@ -129,65 +129,6 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201405
 	      Select BR2_SOFT_FLOAT
 	      Set BR2_TARGET_OPTIMIZATION to -mthumb
 
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201311
-	bool "Sourcery CodeBench ARM 2013.11"
-	depends on BR2_arm
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on BR2_ARM_EABI
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_HAS_GCC_BUG_58595 # based-on gcc-4.8.1
-	select BR2_TOOLCHAIN_HAS_GCC_BUG_58854 # based-on gcc-4.8.1
-	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_11
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
-	help
-	  Sourcery CodeBench toolchain for the ARM architecture, from
-	  Mentor Graphics. It uses gcc 4.8.1, binutils 2.23.52, glibc
-	  2.18 and gdb 7.6.50, kernel headers 3.11. It has support
-	  for the following variants:
-	    - ARMv5TE, little endian, soft-float, glibc
-	      Select ARM926T, ARM10T, XScale or another ARMv5 core
-	      Select BR2_SOFT_FLOAT
-	    - ARMv4T, little endian, soft-float, glibc
-	      Select ARM720T, ARM920T, ARM922T or another ARMv4 core
-	      Select BR2_SOFT_FLOAT
-	    - ARMv7-A, Thumb 2, little endian, soft-float, glibc
-	      Select Cortex-A8, Cortex-A9 or another ARMv7-A core
-	      Select BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mthumb
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201305
-	bool "Sourcery CodeBench ARM 2013.05"
-	depends on BR2_arm
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on BR2_ARM_EABI
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_HAS_GCC_BUG_58595 # based-on gcc-4.7.3
-	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_8
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
-	help
-	  Sourcery CodeBench toolchain for the ARM architecture, from
-	  Mentor Graphics. It uses gcc 4.7.3, binutils 2.23.52, glibc
-	  2.17 and gdb 7.4.50, kernel headers 3.8.2. It has support
-	  for the following variants:
-	    - ARMv5TE, little endian, soft-float, glibc
-	      Select ARM926T, ARM10T, XScale or another ARMv5 core
-	      Select BR2_SOFT_FLOAT
-	    - ARMv4T, little endian, soft-float, glibc
-	      Select ARM720T, ARM920T, ARM922T or another ARMv4 core
-	      Select BR2_SOFT_FLOAT
-	    - ARMv7-A, Thumb 2, little endian, soft-float, glibc
-	      Select Cortex-A8, Cortex-A9 or another ARMv7-A core
-	      Select BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mthumb
-
 comment "Sourcery CodeBench toolchains available for the EABI ABI"
 	depends on BR2_arm
 	depends on !BR2_ARM_EABI
@@ -790,9 +731,7 @@ config BR2_TOOLCHAIN_EXTERNAL_PREFIX
 	default "arceb-linux"		 if BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_2014_12 && BR2_arceb
 	default "arm-linux-gnueabihf"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM
 	default "armeb-linux-gnueabihf"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB
-	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201305
-	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201311
-	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201405
+	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM
 	default "arm-arago-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_201109
 	default "arm-arago-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_201109
 	default "aarch64-linux-gnu"      if BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64

toolchain/toolchain-external/toolchain-external.hash

@@ -15,8 +15,6 @@ sha256 c65b1b4b918d5185349d62a3b7bf43b4b21e1175c52598ec047ca56b3f11d857  blackfi
 
 # Mentor's Sourcery CodeBench Lite toolchains
 # ARM
-sha256 395f1c504a8fb6b7a10663143627b7eee2edc8fd884aa13c4b8505a3623960f5  arm-2013.05-24-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
-sha256 8455854d3b3abbc2328e6c061c6b9625ef8f9c1f236db9f1771877715bd70b9b  arm-2013.11-33-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
 sha256 39ee0e789034334ecc89af94e838e3a4815400ac5ff980f808f466b04778532e  arm-2014.05-29-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
 # NiosII
 sha256 cc47745dc1264fcb8fb98fb1315ab772ab98691396021c455229b58abaf887f5  sourceryg++-2015.11-27-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2

toolchain/toolchain-external/toolchain-external.mk

@@ -272,13 +272,7 @@ define TOOLCHAIN_EXTERNAL_BLACKFIN_UCLIBC_EXTRA_EXTRACT
 		$(TAR) --strip-components=3 --hard-dereference -C $(@D) $(TAR_OPTIONS) -
 endef
 
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201305),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi
-TOOLCHAIN_EXTERNAL_SOURCE = arm-2013.05-24-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201311),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi
-TOOLCHAIN_EXTERNAL_SOURCE = arm-2013.11-33-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201405),y)
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM),y)
 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi
 TOOLCHAIN_EXTERNAL_SOURCE = arm-2014.05-29-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_201109),y)