toolchain/external: add MIPS Codescape MTI GNU Linux toolchain

[Thomas:
 - rebase on top of master
 - remove version number of the Config.in option name.]

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

toolchain/toolchain-external/Config.in

@@ -268,6 +268,57 @@ comment "Sourcery CodeBench toolchains are only available for MIPS/MIPS64 o32 an
 	depends on BR2_MIPS_NABI32
 	depends on !BR2_STATIC_LIBS
 
+config BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS
+	bool "Codescape MTI GNU Linux Toolchain 2015.06"
+	depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_MIPS_SOFT_FLOAT
+	depends on BR2_mips_32r2 || BR2_mips_64r2
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+	help
+	  Codescape MTI GNU Linux Toolchain 2015.06 for the MIPS
+	  architecture, from Imagination Technologies. It uses gcc
+	  4.9.2, binutils 2.24.90, glibc 2.20, gdb 7.9.1 and kernel
+	  headers 4.0. It has support for the following variants:
+	    - MIPS32r2 - Big-Endian, o32
+	      Select 'MIPS (big endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	    - MIPS32r2 - Little-Endian, o32
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	    - MIPS32r2 - Big-Endian, 2008 NaN, o32
+	      Select 'MIPS (big endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Set BR2_TARGET_OPTIMIZATION to '-mnan=2008'
+	    - MIPS32r2 - Little-Endian, 2008 NaN, o32
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Set BR2_TARGET_OPTIMIZATION to '-mnan=2008'
+	    - MIPS32r2 - Little-Endian, o32, microMIPS
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Set BR2_TARGET_OPTIMIZATION to '-mmicromips'
+	    - MIPS64r2 - Big-Endian, n32
+	      Select 'MIPS64 (big endian)' Target Architecture
+	      Select 'mips 64r2' Target Architecture Variant
+	      Select 'n32' Target ABI
+	    - MIPS64r2 - Little-Endian, n32
+	      Select 'MIPS64 (little endian)' Target Architecture
+	      Select 'mips 64r2' Target Architecture Variant
+	      Select 'n32' Target ABI
+	    - MIPS64r2 - Big-Endian, n64
+	      Select 'MIPS64 (big endian)' Target Architecture
+	      Select 'mips 64r2' Target Architecture Variant
+	      Select 'n64' Target ABI
+	    - MIPS64r2 - Little-Endian, n64
+	      Select 'MIPS64 (little endian)' Target Architecture
+	      Select 'mips 64r2' Target Architecture Variant
+	      Select 'n64' Target ABI
+
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII
 	bool "Sourcery CodeBench Nios-II 2015.11"
 	depends on BR2_nios2
@@ -594,6 +645,7 @@ config BR2_TOOLCHAIN_EXTERNAL_PREFIX
 	default "bfin-linux-uclibc"	 if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX && BR2_BINFMT_FDPIC
 	default "arm-linux-musleabi"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_arm && BR2_ARM_EABI
 	default "arm-linux-musleabihf"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_arm && BR2_ARM_EABIHF
+	default "mips-mti-linux-gnu"     if BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS
 	default "armeb-linux-musleabi"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_armeb
 	default "i486-linux-musl"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_i386
 	default "microblaze-linux-musl"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_microblazebe

toolchain/toolchain-external/toolchain-external.hash

@@ -38,6 +38,10 @@ sha256 24b86799a6c64380c740bf31a700b46e854fc0a821da2341e9868f0196c864de  gcc-lin
 sha256 3954f496ab01de67241109e82abfaa9b7625fdab4f05e79e7902e9814a07b832  gcc-linaro-aarch64-linux-gnu-4.9-2014.09_linux.tar.xz
 sha256 b9137008744d9009877f662dbac7481d673cdcb1798e727e325a37c98a0f63da  gcc-linaro-5.1-2015.08-x86_64_aarch64-linux-gnu.tar.xz
 
+# Codescape toolchains from Imagination Technologies
+# From: http://codescape-mips-sdk.imgtec.com/components/toolchain/2015.06-05/
+sha256 f2d12dde626b750987d37ba6c73c6e11839850add94b0d4e4cf77917c1b0944f  Codescape.GNU.Tools.Package.2015.06-05.for.MIPS.MTI.Linux.CentOS-5.x86.tar.gz
+
 # Synopsys DesignWare ARC toolchains
 sha256 1fa4ea2c8616623205f1c7beca02ea31b019099528a7433e5b020b0876b93bf3  arc_gnu_2014.12_prebuilt_uclibc_le_arc700_linux_install.tar.gz
 sha256 1080f07fcae2bfc176a3ea8d30b9ed8eaecab70fb786639d6ec70cae8322df10  arc_gnu_2014.12_prebuilt_uclibc_be_arc700_linux_install.tar.gz

toolchain/toolchain-external/toolchain-external.mk

@@ -332,6 +332,10 @@ TOOLCHAIN_EXTERNAL_SOURCE = ia32-2012.09-62-i686-pc-linux-gnu-i386-linux.tar.bz2
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64),y)
 TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/x86_64-amd-linux-gnu
 TOOLCHAIN_EXTERNAL_SOURCE = amd-2015.11-36-x86_64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS),y)
+TOOLCHAIN_EXTERNAL_SITE = http://codescape-mips-sdk.imgtec.com/components/toolchain/2015.06-05
+TOOLCHAIN_EXTERNAL_SOURCE = Codescape.GNU.Tools.Package.2015.06-05.for.MIPS.MTI.Linux.CentOS-5.x86.tar.gz
+TOOLCHAIN_EXTERNAL_STRIP_COMPONENTS = 2
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX),y)
 TOOLCHAIN_EXTERNAL_SITE = http://downloads.sourceforge.net/project/adi-toolchain/2014R1/2014R1-RC2/i386
 TOOLCHAIN_EXTERNAL_SOURCE = blackfin-toolchain-2014R1-RC2.i386.tar.bz2