--- /dev/null
+################################################################################
+#
+# toolchain-external
+#
+################################################################################
+
+#
+# This package implements the support for external toolchains, i.e
+# toolchains that are available pre-built, ready to use. Such toolchain
+# may either be readily available on the Web (Linaro, Sourcery
+# CodeBench, from processor vendors) or may be built with tools like
+# Crosstool-NG or Buildroot itself. So far, we have tested this
+# with:
+#
+# * Toolchains generated by Crosstool-NG
+# * Toolchains generated by Buildroot
+# * Toolchains provided by Linaro for the ARM and AArch64
+# architectures
+# * Sourcery CodeBench toolchains (from Mentor Graphics) for the ARM,
+# MIPS, PowerPC, x86, x86_64 and NIOS 2 architectures. For the MIPS
+# toolchain, the -muclibc variant isn't supported yet, only the
+# default glibc-based variant is.
+# * Analog Devices toolchains for the Blackfin architecture
+# * Xilinx toolchains for the Microblaze architecture
+# * Synopsys DesignWare toolchains for ARC cores
+#
+# The basic principle is the following
+#
+# 1. If the toolchain is not pre-installed, download and extract it
+# in $(TOOLCHAIN_EXTERNAL_INSTALL_DIR). Otherwise,
+# $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) points to were the toolchain has
+# already been installed by the user.
+#
+# 2. For all external toolchains, perform some checks on the
+# conformity between the toolchain configuration described in the
+# Buildroot menuconfig system, and the real configuration of the
+# external toolchain. This is for example important to make sure that
+# the Buildroot configuration system knows whether the toolchain
+# supports RPC, IPv6, locales, large files, etc. Unfortunately, these
+# things cannot be detected automatically, since the value of these
+# options (such as BR2_TOOLCHAIN_HAS_NATIVE_RPC) are needed at
+# configuration time because these options are used as dependencies
+# for other options. And at configuration time, we are not able to
+# retrieve the external toolchain configuration.
+#
+# 3. Copy the libraries needed at runtime to the target directory,
+# $(TARGET_DIR). Obviously, things such as the C library, the dynamic
+# loader and a few other utility libraries are needed if dynamic
+# applications are to be executed on the target system.
+#
+# 4. Copy the libraries and headers to the staging directory. This
+# will allow all further calls to gcc to be made using --sysroot
+# $(STAGING_DIR), which greatly simplifies the compilation of the
+# packages when using external toolchains. So in the end, only the
+# cross-compiler binaries remains external, all libraries and headers
+# are imported into the Buildroot tree.
+#
+# 5. Build a toolchain wrapper which executes the external toolchain
+# with a number of arguments (sysroot/march/mtune/..) hardcoded,
+# so we're sure the correct configuration is always used and the
+# toolchain behaves similar to an internal toolchain.
+# This toolchain wrapper and symlinks are installed into
+# $(HOST_DIR)/usr/bin like for the internal toolchains, and the rest
+# of Buildroot is handled identical for the 2 toolchain types.
+
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y)
+LIB_EXTERNAL_LIBS += libatomic.so.* libc.so.* libcrypt.so.* libdl.so.* libgcc_s.so.* libm.so.* libnsl.so.* libresolv.so.* librt.so.* libutil.so.*
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_ARM_EABIHF),yy)
+LIB_EXTERNAL_LIBS += ld-linux-armhf.so.*
+else
+LIB_EXTERNAL_LIBS += ld*.so.*
+endif
+ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
+LIB_EXTERNAL_LIBS += libpthread.so.*
+ifneq ($(BR2_PACKAGE_GDB)$(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY),)
+LIB_EXTERNAL_LIBS += libthread_db.so.*
+endif # gdbserver
+endif # ! no threads
+endif
+
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC),y)
+LIB_EXTERNAL_LIBS += libnss_files.so.* libnss_dns.so.*
+endif
+
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL),y)
+LIB_EXTERNAL_LIBS += libc.so libgcc_s.so.*
+endif
+
+ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
+USR_LIB_EXTERNAL_LIBS += libstdc++.so.*
+endif
+
+LIB_EXTERNAL_LIBS += $(call qstrip,$(BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS))
+
+# Details about sysroot directory selection.
+#
+# To find the sysroot directory, we use the trick of looking for the
+# 'libc.a' file with the -print-file-name gcc option, and then
+# mangling the path to find the base directory of the sysroot.
+#
+# Note that we do not use the -print-sysroot option, because it is
+# only available since gcc 4.4.x, and we only recently dropped support
+# for 4.2.x and 4.3.x.
+#
+# When doing this, we don't pass any option to gcc that could select a
+# multilib variant (such as -march) as we want the "main" sysroot,
+# which contains all variants of the C library in the case of multilib
+# toolchains. We use the TARGET_CC_NO_SYSROOT variable, which is the
+# path of the cross-compiler, without the --sysroot=$(STAGING_DIR),
+# since what we want to find is the location of the original toolchain
+# sysroot. This "main" sysroot directory is stored in SYSROOT_DIR.
+#
+# Then, multilib toolchains are a little bit more complicated, since
+# they in fact have multiple sysroots, one for each variant supported
+# by the toolchain. So we need to find the particular sysroot we're
+# interested in.
+#
+# To do so, we ask the compiler where its sysroot is by passing all
+# flags (including -march and al.), except the --sysroot flag since we
+# want to the compiler to tell us where its original sysroot
+# is. ARCH_SUBDIR will contain the subdirectory, in the main
+# SYSROOT_DIR, that corresponds to the selected architecture
+# variant. ARCH_SYSROOT_DIR will contain the full path to this
+# location.
+#
+# One might wonder why we don't just bother with ARCH_SYSROOT_DIR. The
+# fact is that in multilib toolchains, the header files are often only
+# present in the main sysroot, and only the libraries are available in
+# each variant-specific sysroot directory.
+
+
+TOOLCHAIN_EXTERNAL_PREFIX = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PREFIX))
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
+TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(HOST_DIR)/opt/ext-toolchain
+else
+TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PATH))
+endif
+
+ifeq ($(TOOLCHAIN_EXTERNAL_INSTALL_DIR),)
+ifneq ($(TOOLCHAIN_EXTERNAL_PREFIX),)
+# if no path set, figure it out from path
+TOOLCHAIN_EXTERNAL_BIN := $(shell dirname $(shell which $(TOOLCHAIN_EXTERNAL_PREFIX)-gcc))
+endif
+else
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2014R1)$(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2013R1)$(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2),y)
+TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/$(TOOLCHAIN_EXTERNAL_PREFIX)/bin
+else
+TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/bin
+endif
+endif
+
+TOOLCHAIN_EXTERNAL_CROSS = $(TOOLCHAIN_EXTERNAL_BIN)/$(TOOLCHAIN_EXTERNAL_PREFIX)-
+TOOLCHAIN_EXTERNAL_CC = $(TOOLCHAIN_EXTERNAL_CROSS)gcc
+TOOLCHAIN_EXTERNAL_CXX = $(TOOLCHAIN_EXTERNAL_CROSS)g++
+TOOLCHAIN_EXTERNAL_READELF = $(TOOLCHAIN_EXTERNAL_CROSS)readelf
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS = -DBR_SYSROOT='"$(STAGING_SUBDIR)"'
+
+ifeq ($(filter $(HOST_DIR)/%,$(TOOLCHAIN_EXTERNAL_BIN)),)
+# TOOLCHAIN_EXTERNAL_BIN points outside HOST_DIR => absolute path
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += \
+ -DBR_CROSS_PATH_ABS='"$(TOOLCHAIN_EXTERNAL_BIN)"'
+else
+# TOOLCHAIN_EXTERNAL_BIN points inside HOST_DIR => relative path
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += \
+ -DBR_CROSS_PATH_REL='"$(TOOLCHAIN_EXTERNAL_BIN:$(HOST_DIR)/%=%)"'
+endif
+
+ifeq ($(call qstrip,$(BR2_GCC_TARGET_CPU_REVISION)),)
+CC_TARGET_CPU_ := $(call qstrip,$(BR2_GCC_TARGET_CPU))
+else
+CC_TARGET_CPU_ := $(call qstrip,$(BR2_GCC_TARGET_CPU)-$(BR2_GCC_TARGET_CPU_REVISION))
+endif
+CC_TARGET_ARCH_ := $(call qstrip,$(BR2_GCC_TARGET_ARCH))
+CC_TARGET_ABI_ := $(call qstrip,$(BR2_GCC_TARGET_ABI))
+CC_TARGET_FPU_ := $(call qstrip,$(BR2_GCC_TARGET_FPU))
+CC_TARGET_FLOAT_ABI_ := $(call qstrip,$(BR2_GCC_TARGET_FLOAT_ABI))
+CC_TARGET_MODE_ := $(call qstrip,$(BR2_GCC_TARGET_MODE))
+
+# march/mtune/floating point mode needs to be passed to the external toolchain
+# to select the right multilib variant
+ifeq ($(BR2_x86_64),y)
+TOOLCHAIN_EXTERNAL_CFLAGS += -m64
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_64
+endif
+ifneq ($(CC_TARGET_ARCH_),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -march=$(CC_TARGET_ARCH_)
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_ARCH='"$(CC_TARGET_ARCH_)"'
+endif
+ifneq ($(CC_TARGET_CPU_),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mcpu=$(CC_TARGET_CPU_)
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_CPU='"$(CC_TARGET_CPU_)"'
+endif
+ifneq ($(CC_TARGET_ABI_),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mabi=$(CC_TARGET_ABI_)
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_ABI='"$(CC_TARGET_ABI_)"'
+endif
+ifneq ($(CC_TARGET_FPU_),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mfpu=$(CC_TARGET_FPU_)
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_FPU='"$(CC_TARGET_FPU_)"'
+endif
+ifneq ($(CC_TARGET_FLOAT_ABI_),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mfloat-abi=$(CC_TARGET_FLOAT_ABI_)
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_FLOAT_ABI='"$(CC_TARGET_FLOAT_ABI_)"'
+endif
+ifneq ($(CC_TARGET_MODE_),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -m$(CC_TARGET_MODE_)
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_MODE='"$(CC_TARGET_MODE_)"'
+endif
+ifeq ($(BR2_BINFMT_FLAT),y)
+TOOLCHAIN_EXTERNAL_CFLAGS += -Wl,-elf2flt
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_BINFMT_FLAT
+endif
+ifeq ($(BR2_mipsel)$(BR2_mips64el),y)
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_MIPS_TARGET_LITTLE_ENDIAN
+TOOLCHAIN_EXTERNAL_CFLAGS += -EL
+endif
+ifeq ($(BR2_mips)$(BR2_mips64),y)
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_MIPS_TARGET_BIG_ENDIAN
+TOOLCHAIN_EXTERNAL_CFLAGS += -EB
+endif
+ifeq ($(BR2_arceb),y)
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_ARC_TARGET_BIG_ENDIAN
+TOOLCHAIN_EXTERNAL_CFLAGS += -EB
+endif
+ifneq ($(BR2_TARGET_OPTIMIZATION),)
+TOOLCHAIN_EXTERNAL_CFLAGS += $(call qstrip,$(BR2_TARGET_OPTIMIZATION))
+# We create a list like '"-mfoo", "-mbar", "-mbarfoo"' so that each
+# flag is a separate argument when used in execv() by the external
+# toolchain wrapper.
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_ADDITIONAL_CFLAGS='$(foreach f,$(call qstrip,$(BR2_TARGET_OPTIMIZATION)),"$(f)",)'
+endif
+
+ifeq ($(BR2_SOFT_FLOAT),y)
+TOOLCHAIN_EXTERNAL_CFLAGS += -msoft-float
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_SOFTFLOAT=1
+endif
+
+# The Linaro ARMhf toolchain expects the libraries in
+# {/usr,}/lib/arm-linux-gnueabihf, but Buildroot copies them to
+# {/usr,}/lib, so we need to create a symbolic link.
+define TOOLCHAIN_EXTERNAL_LINARO_ARMHF_SYMLINK
+ ln -snf . $(TARGET_DIR)/lib/arm-linux-gnueabihf
+ ln -snf . $(TARGET_DIR)/usr/lib/arm-linux-gnueabihf
+endef
+
+define TOOLCHAIN_EXTERNAL_LINARO_ARMEBHF_SYMLINK
+ ln -snf . $(TARGET_DIR)/lib/armeb-linux-gnueabihf
+ ln -snf . $(TARGET_DIR)/usr/lib/armeb-linux-gnueabihf
+endef
+
+define TOOLCHAIN_EXTERNAL_LINARO_AARCH64_SYMLINK
+ ln -snf . $(TARGET_DIR)/lib/aarch64-linux-gnu
+ ln -snf . $(TARGET_DIR)/usr/lib/aarch64-linux-gnu
+endef
+
+ifeq ($(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)
+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)
+TOOLCHAIN_EXTERNAL_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports
+TOOLCHAIN_EXTERNAL_SOURCE = arago-2011.09-armv7a-linux-gnueabi-sdk.tar.bz2
+define TOOLCHAIN_EXTERNAL_FIXUP_CMDS
+ mv $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/arago-2011.09/armv7a/* $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/
+ rm -rf $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/arago-2011.09/
+endef
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_201109),y)
+TOOLCHAIN_EXTERNAL_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports
+TOOLCHAIN_EXTERNAL_SOURCE = arago-2011.09-armv5te-linux-gnueabi-sdk.tar.bz2
+define TOOLCHAIN_EXTERNAL_FIXUP_CMDS
+ mv $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/arago-2011.09/armv5te/* $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/
+ rm -rf $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/arago-2011.09/
+endef
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM),y)
+TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/14.09/components/toolchain/binaries
+TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux.tar.xz
+TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_ARMHF_SYMLINK
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB),y)
+TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/14.09/components/toolchain/binaries
+TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-armeb-linux-gnueabihf-4.9-2014.09_linux.tar.xz
+TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_ARMEBHF_SYMLINK
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201311),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = mips-2013.11-36-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201405),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = mips-2014.05-27-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201411),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = mips-2014.11-22-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201305),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/nios2-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = sourceryg++-2013.05-43-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
+TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_SANITIZE_KERNEL_HEADERS
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201405),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/nios2-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = sourceryg++-2014.05-47-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = freescale-2010.09-55-powerpc-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = freescale-2011.03-38-powerpc-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201203),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-mentor-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = mentor-2012.03-71-powerpc-mentor-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = renesas-2011.03-37-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201203),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = renesas-2012.03-35-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201209),y)
+TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201009),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/sh-uclinux
+TOOLCHAIN_EXTERNAL_SOURCE = renesas-2010.09-60-sh-uclinux-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201103),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/sh-uclinux
+TOOLCHAIN_EXTERNAL_SOURCE = renesas-2011.03-36-sh-uclinux-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201109),y)
+TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/i686-pc-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = ia32-2011.09-24-i686-pc-linux-gnu-i386-linux.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201203),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/i686-pc-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = ia32-2012.03-27-i686-pc-linux-gnu-i386-linux.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201209),y)
+TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/i686-pc-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = ia32-2012.09-62-i686-pc-linux-gnu-i386-linux.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_201405),y)
+TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/x86_64-amd-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = amd-2014.05-25-x86_64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2),y)
+TOOLCHAIN_EXTERNAL_SITE = http://downloads.sourceforge.net/project/adi-toolchain/2012R2/2012R2-RC2/i386
+TOOLCHAIN_EXTERNAL_SOURCE = blackfin-toolchain-2012R2-RC2.i386.tar.bz2
+TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-2012R2-RC2.i386.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2013R1),y)
+TOOLCHAIN_EXTERNAL_SITE = http://downloads.sourceforge.net/project/adi-toolchain/2013R1/2013R1-RC1/i386
+TOOLCHAIN_EXTERNAL_SOURCE = blackfin-toolchain-2013R1-RC1.i386.tar.bz2
+TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-2013R1-RC1.i386.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2014R1),y)
+TOOLCHAIN_EXTERNAL_SITE = http://downloads.sourceforge.net/project/adi-toolchain/2014R1/2014R1-RC2/i386
+TOOLCHAIN_EXTERNAL_SOURCE = blackfin-toolchain-2014R1-RC2.i386.tar.bz2
+TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-2014R1-RC2.i386.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64),y)
+TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/14.09/components/toolchain/binaries
+TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-aarch64-linux-gnu-4.9-2014.09_linux.tar.xz
+TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_AARCH64_SYMLINK
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/aarch64-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = aarch64-2014.05-30-aarch64-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS),y)
+TOOLCHAIN_EXTERNAL_VERSION = 1.1.6
+TOOLCHAIN_EXTERNAL_SITE = https://googledrive.com/host/0BwnS5DMB0YQ6bDhPZkpOYVFhbk0/musl-$(TOOLCHAIN_EXTERNAL_VERSION)
+ifeq ($(BR2_arm),y)
+TOOLCHAIN_EXTERNAL_SOURCE = crossx86-arm-linux-musleabi-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
+else ifeq ($(BR2_armeb),y)
+TOOLCHAIN_EXTERNAL_SOURCE = crossx86-armeb-linux-musleabi-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
+else ifeq ($(BR2_i386),y)
+TOOLCHAIN_EXTERNAL_SOURCE = crossx86-i486-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
+else ifeq ($(BR2_microblazebe),y)
+TOOLCHAIN_EXTERNAL_SOURCE = crossx86-microblaze-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
+else ifeq ($(BR2_mips),y)
+TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mips-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
+else ifeq ($(BR2_mipsel),y)
+TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mipsel-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
+else ifeq ($(BR2_powerpc),y)
+TOOLCHAIN_EXTERNAL_SOURCE = crossx86-powerpc-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
+else ifeq ($(BR2_x86_64),y)
+TOOLCHAIN_EXTERNAL_SOURCE = crossx86-x86_64-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
+endif
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_2014_12),y)
+TOOLCHAIN_EXTERNAL_SITE = https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2014.12
+ifeq ($(BR2_arc750d)$(BR2_arc770d),y)
+TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE = arc700
+else
+TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE = archs
+endif
+ifeq ($(BR2_arcle),y)
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS = le
+else
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS = be
+endif
+TOOLCHAIN_EXTERNAL_SOURCE = arc_gnu_2014.12_prebuilt_uclibc_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS)_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE)_linux_install.tar.gz
+else
+# Custom toolchain
+TOOLCHAIN_EXTERNAL_SITE = $(dir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL)))
+TOOLCHAIN_EXTERNAL_SOURCE = $(notdir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL)))
+# We can't check hashes for custom downloaded toolchains
+BR_NO_CHECK_HASH_FOR += $(TOOLCHAIN_EXTERNAL_SOURCE)
+endif
+
+# In fact, we don't need to download the toolchain, since it is already
+# available on the system, so force the site and source to be empty so
+# that nothing will be downloaded/extracted.
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_PREINSTALLED),y)
+TOOLCHAIN_EXTERNAL_SITE =
+TOOLCHAIN_EXTERNAL_SOURCE =
+endif
+
+TOOLCHAIN_EXTERNAL_ADD_TOOLCHAIN_DEPENDENCY = NO
+
+TOOLCHAIN_EXTERNAL_INSTALL_STAGING = YES
+
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2)$(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2013R1)$(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2014R1),y)
+# Special handling for Blackfin toolchain, because of the split in two
+# tarballs, and the organization of tarball contents. The tarballs
+# contain ./opt/uClinux/{bfin-uclinux,bfin-linux-uclibc} directories,
+# which themselves contain the toolchain. This is why we strip more
+# components than usual.
+define TOOLCHAIN_EXTERNAL_EXTRACT_CMDS
+ mkdir -p $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)
+ $(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_SOURCE)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE) | \
+ $(TAR) $(TAR_STRIP_COMPONENTS)=3 --hard-dereference -C $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) $(TAR_OPTIONS) -
+ $(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS) | \
+ $(TAR) $(TAR_STRIP_COMPONENTS)=3 --hard-dereference -C $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) $(TAR_OPTIONS) -
+endef
+else ifneq ($(TOOLCHAIN_EXTERNAL_SOURCE),)
+# Normal handling of toolchain tarball extraction.
+define TOOLCHAIN_EXTERNAL_EXTRACT_CMDS
+ mkdir -p $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)
+ $(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_SOURCE)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE) | \
+ $(TAR) $(TAR_STRIP_COMPONENTS)=1 --exclude='usr/lib/locale/*' -C $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) $(TAR_OPTIONS) -
+ $(TOOLCHAIN_EXTERNAL_FIXUP_CMDS)
+endef
+endif
+
+# Returns the location of the libc.a file for the given compiler + flags
+define toolchain_find_libc_a
+$$(readlink -f $$(LANG=C $(1) -print-file-name=libc.a))
+endef
+
+# Returns the sysroot location for the given compiler + flags
+define toolchain_find_sysroot
+$$(echo -n $(call toolchain_find_libc_a,$(1)) | sed -r -e 's:(usr/)?lib(32|64)?/([^/]*/)?libc\.a::')
+endef
+
+# Returns the lib subdirectory for the given compiler + flags (i.e
+# typically lib32 or lib64 for some toolchains)
+define toolchain_find_libdir
+$$(echo -n $(call toolchain_find_libc_a,$(1)) | sed -r -e 's:.*/(usr/)?(lib(32|64)?)/([^/]*/)?libc.a:\2:')
+endef
+
+# Checks for an already installed toolchain: check the toolchain
+# location, check that it supports sysroot, and then verify that it
+# matches the configuration provided in Buildroot: ABI, C++ support,
+# kernel headers version, type of C library and all C library features.
+define TOOLCHAIN_EXTERNAL_CONFIGURE_CMDS
+ $(Q)$(call check_cross_compiler_exists,$(TOOLCHAIN_EXTERNAL_CC))
+ $(Q)$(call check_unusable_toolchain,$(TOOLCHAIN_EXTERNAL_CC))
+ $(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
+ if test -z "$${SYSROOT_DIR}" ; then \
+ @echo "External toolchain doesn't support --sysroot. Cannot use." ; \
+ exit 1 ; \
+ fi ; \
+ $(call check_kernel_headers_version,\
+ $(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC)),\
+ $(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))); \
+ if test "$(BR2_arm)" = "y" ; then \
+ $(call check_arm_abi,\
+ "$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS)",\
+ $(TOOLCHAIN_EXTERNAL_READELF)) ; \
+ fi ; \
+ if test "$(BR2_INSTALL_LIBSTDCPP)" = "y" ; then \
+ $(call check_cplusplus,$(TOOLCHAIN_EXTERNAL_CXX)) ; \
+ fi ; \
+ if test "$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)" = "y" ; then \
+ $(call check_uclibc,$${SYSROOT_DIR}) ; \
+ elif test "$(BR2_TOOLCHAIN_EXTERNAL_MUSL)" = "y" ; then \
+ $(call check_musl,$${SYSROOT_DIR}) ; \
+ else \
+ $(call check_glibc,$${SYSROOT_DIR}) ; \
+ fi
+endef
+
+# With the musl C library, the libc.so library directly plays the role
+# of the dynamic library loader. We just need to create a symbolic
+# link to libc.so with the appropriate name.
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL),y)
+ifeq ($(BR2_i386),y)
+MUSL_ARCH = i386
+else
+MUSL_ARCH = $(ARCH)
+endif
+define TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
+ ln -sf libc.so $(TARGET_DIR)/lib/ld-musl-$(MUSL_ARCH).so.1
+endef
+TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
+endif
+
+# Integration of the toolchain into Buildroot: find the main sysroot
+# and the variant-specific sysroot, then copy the needed libraries to
+# the $(TARGET_DIR) and copy the whole sysroot (libraries and headers)
+# to $(STAGING_DIR).
+#
+# Variables are defined as follows:
+#
+# LIBC_A_LOCATION: location of the libc.a file in the default
+# multilib variant (allows to find the main
+# sysroot directory)
+# Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/usr/lib/libc.a
+#
+# SYSROOT_DIR: the main sysroot directory, deduced from
+# LIBC_A_LOCATION by removing the
+# usr/lib[32|64]/libc.a part of the path.
+# Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/
+#
+# ARCH_LIBC_A_LOCATION: location of the libc.a file in the selected
+# multilib variant (taking into account the
+# CFLAGS). Allows to find the sysroot of the
+# selected multilib variant.
+# Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/mips16/soft-float/el/usr/lib/libc.a
+#
+# ARCH_SYSROOT_DIR: the sysroot of the selected multilib variant,
+# deduced from ARCH_LIBC_A_LOCATION by removing
+# usr/lib[32|64]/libc.a at the end of the path.
+# Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/mips16/soft-float/el/
+#
+# ARCH_LIB_DIR: 'lib', 'lib32' or 'lib64' depending on where libraries
+# are stored. Deduced from ARCH_LIBC_A_LOCATION by
+# looking at usr/lib??/libc.a.
+# Ex: lib
+#
+# ARCH_SUBDIR: the relative location of the sysroot of the selected
+# multilib variant compared to the main sysroot.
+# Ex: mips16/soft-float/el
+#
+# SUPPORT_LIB_DIR: some toolchains, such as recent Linaro toolchains,
+# store GCC support libraries (libstdc++,
+# libgcc_s, etc.) outside of the sysroot. In
+# this case, SUPPORT_LIB_DIR is set to a
+# non-empty value, and points to the directory
+# where these support libraries are
+# available. Those libraries will be copied to
+# our sysroot, and the directory will also be
+# considered when searching libraries for copy
+# to the target filesystem.
+
+define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS
+ $(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
+ if test -z "$${SYSROOT_DIR}" ; then \
+ @echo "External toolchain doesn't support --sysroot. Cannot use." ; \
+ exit 1 ; \
+ fi ; \
+ ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+ ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+ SUPPORT_LIB_DIR="" ; \
+ if test `find $${ARCH_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
+ LIBSTDCPP_A_LOCATION=$$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a) ; \
+ if [ -e "$${LIBSTDCPP_A_LOCATION}" ]; then \
+ SUPPORT_LIB_DIR=`readlink -f $${LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
+ fi ; \
+ fi ; \
+ ARCH_SUBDIR=`echo $${ARCH_SYSROOT_DIR} | sed -r -e "s:^$${SYSROOT_DIR}(.*)/$$:\1:"` ; \
+ if test -z "$(BR2_STATIC_LIBS)" ; then \
+ $(call MESSAGE,"Copying external toolchain libraries to target...") ; \
+ for libs in $(LIB_EXTERNAL_LIBS); do \
+ $(call copy_toolchain_lib_root,$${ARCH_SYSROOT_DIR},$${SUPPORT_LIB_DIR},$${ARCH_LIB_DIR},$$libs,/lib); \
+ done ; \
+ for libs in $(USR_LIB_EXTERNAL_LIBS); do \
+ $(call copy_toolchain_lib_root,$${ARCH_SYSROOT_DIR},$${SUPPORT_LIB_DIR},$${ARCH_LIB_DIR},$$libs,/usr/lib); \
+ done ; \
+ fi ; \
+ if test "$(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY)" = "y"; then \
+ $(call MESSAGE,"Copying gdbserver") ; \
+ gdbserver_found=0 ; \
+ for d in $${ARCH_SYSROOT_DIR}/usr $${ARCH_SYSROOT_DIR}/../debug-root/usr $${ARCH_SYSROOT_DIR}/usr/$${ARCH_LIB_DIR} ; do \
+ if test -f $${d}/bin/gdbserver ; then \
+ install -m 0755 -D $${d}/bin/gdbserver $(TARGET_DIR)/usr/bin/gdbserver ; \
+ gdbserver_found=1 ; \
+ break ; \
+ fi ; \
+ done ; \
+ if [ $${gdbserver_found} -eq 0 ] ; then \
+ echo "Could not find gdbserver in external toolchain" ; \
+ exit 1 ; \
+ fi ; \
+ fi
+endef
+
+define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS
+ $(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
+ if test -z "$${SYSROOT_DIR}" ; then \
+ @echo "External toolchain doesn't support --sysroot. Cannot use." ; \
+ exit 1 ; \
+ fi ; \
+ ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+ ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+ SUPPORT_LIB_DIR="" ; \
+ if test `find $${ARCH_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
+ LIBSTDCPP_A_LOCATION=$$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a) ; \
+ if [ -e "$${LIBSTDCPP_A_LOCATION}" ]; then \
+ SUPPORT_LIB_DIR=`readlink -f $${LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
+ fi ; \
+ fi ; \
+ ARCH_SUBDIR=`echo $${ARCH_SYSROOT_DIR} | sed -r -e "s:^$${SYSROOT_DIR}(.*)/$$:\1:"` ; \
+ $(call MESSAGE,"Copying external toolchain sysroot to staging...") ; \
+ $(call copy_toolchain_sysroot,$${SYSROOT_DIR},$${ARCH_SYSROOT_DIR},$${ARCH_SUBDIR},$${ARCH_LIB_DIR},$${SUPPORT_LIB_DIR})
+endef
+
+# Special installation target used on the Blackfin architecture when
+# FDPIC is not the primary binary format being used, but the user has
+# nonetheless requested the installation of the FDPIC libraries to the
+# target filesystem.
+ifeq ($(BR2_BFIN_INSTALL_FDPIC_SHARED),y)
+define TOOLCHAIN_EXTERNAL_INSTALL_BFIN_FDPIC
+ $(Q)$(call MESSAGE,"Install external toolchain FDPIC libraries to target...") ; \
+ FDPIC_EXTERNAL_CC=$(dir $(TOOLCHAIN_EXTERNAL_CC))/../../bfin-linux-uclibc/bin/bfin-linux-uclibc-gcc ; \
+ FDPIC_SYSROOT_DIR="$(call toolchain_find_sysroot,$${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+ FDPIC_LIB_DIR="$(call toolchain_find_libdir,$${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+ FDPIC_SUPPORT_LIB_DIR="" ; \
+ if test `find $${FDPIC_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
+ FDPIC_LIBSTDCPP_A_LOCATION=$$(LANG=C $${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a) ; \
+ if [ -e "$${FDPIC_LIBSTDCPP_A_LOCATION}" ]; then \
+ FDPIC_SUPPORT_LIB_DIR=`readlink -f $${FDPIC_LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
+ fi ; \
+ fi ; \
+ for libs in $(LIB_EXTERNAL_LIBS); do \
+ $(call copy_toolchain_lib_root,$${FDPIC_SYSROOT_DIR},$${FDPIC_SUPPORT_LIB_DIR},$${FDPIC_LIB_DIR},$$libs,/lib); \
+ done ; \
+ for libs in $(USR_LIB_EXTERNAL_LIBS); do \
+ $(call copy_toolchain_lib_root,$${FDPIC_SYSROOT_DIR},$${FDPIC_SUPPORT_LIB_DIR},$${FDPIC_LIB_DIR},$$libs,/usr/lib); \
+ done
+endef
+endif
+
+# Special installation target used on the Blackfin architecture when
+# shared FLAT is not the primary format being used, but the user has
+# nonetheless requested the installation of the shared FLAT libraries
+# to the target filesystem. The flat libraries are found and linked
+# according to the index in name "libN.so". Index 1 is reserved for
+# the standard C library. Customer libraries can use 4 and above.
+ifeq ($(BR2_BFIN_INSTALL_FLAT_SHARED),y)
+define TOOLCHAIN_EXTERNAL_INSTALL_BFIN_FLAT
+ $(Q)$(call MESSAGE,"Install external toolchain FLAT libraries to target...") ; \
+ FLAT_EXTERNAL_CC=$(dir $(TOOLCHAIN_EXTERNAL_CC))../../bfin-uclinux/bin/bfin-uclinux-gcc ; \
+ FLAT_LIBC_A_LOCATION=`$${FLAT_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS) -mid-shared-library -print-file-name=libc`; \
+ if [ -f $${FLAT_LIBC_A_LOCATION} -a ! -h $${FLAT_LIBC_A_LOCATION} ] ; then \
+ $(INSTALL) -D $${FLAT_LIBC_A_LOCATION} $(TARGET_DIR)/lib/lib1.so; \
+ fi
+endef
+endif
+
+# We use --hash-style=both to increase the compatibility of
+# the generated binary with older platforms, except for MIPS,
+# where the only acceptable hash style is 'sysv'
+ifeq ($(findstring mips,$(HOSTARCH)),mips)
+TOOLCHAIN_EXTERNAL_WRAPPER_HASH_STYLE = sysv
+else
+TOOLCHAIN_EXTERNAL_WRAPPER_HASH_STYLE = both
+endif
+
+# Build toolchain wrapper for preprocessor, C and C++ compiler and setup
+# symlinks for everything else. Skip gdb symlink when we are building our
+# own gdb to prevent two gdb's in output/host/usr/bin.
+# When the link-time-optimazation flag '-flto' is used, then the compiler
+# and binutils have to support lto. ar/ranlib need to be called with the
+# lto plugin. The wrappers *-gcc-ar and *-gcc-ranlib provided by GCC could
+# be used as drop-ins for ar/runlib when Makefiles are used which do not
+# pass the lto arguments.
+define TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER
+ $(Q)$(call MESSAGE,"Building ext-toolchain wrapper")
+ mkdir -p $(HOST_DIR)/usr/bin; cd $(HOST_DIR)/usr/bin; \
+ for i in $(TOOLCHAIN_EXTERNAL_CROSS)*; do \
+ base=$${i##*/}; \
+ case "$$base" in \
+ *-ar|*-ranlib|*-nm) \
+ ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
+ ;; \
+ *cc|*cc-*|*++|*++-*|*cpp) \
+ ln -sf ext-toolchain-wrapper $$base; \
+ ;; \
+ *gdb|*gdbtui) \
+ if test "$(BR2_PACKAGE_HOST_GDB)" != "y"; then \
+ ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
+ fi \
+ ;; \
+ *) \
+ ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
+ ;; \
+ esac; \
+ done ;
+ $(HOSTCC) $(HOST_CFLAGS) $(TOOLCHAIN_EXTERNAL_WRAPPER_ARGS) \
+ -s -Wl,--hash-style=$(TOOLCHAIN_EXTERNAL_WRAPPER_HASH_STYLE) \
+ toolchain/toolchain-external/ext-toolchain-wrapper.c \
+ -o $(HOST_DIR)/usr/bin/ext-toolchain-wrapper
+endef
+
+# This sed magic is taken from Linux headers_install.sh script.
+define TOOLCHAIN_EXTERNAL_SANITIZE_KERNEL_HEADERS
+ $(Q)$(call MESSAGE,"Sanitizing kernel headers");
+ find $(STAGING_DIR)/usr/include/linux/ -name "*.h" | xargs sed -r -i \
+ -e 's/([ \t(])(__user|__force|__iomem)[ \t]/\1/g' \
+ -e 's/__attribute_const__([ \t]|$$)/\1/g' \
+ -e 's@^#include <linux/compiler.h>@@' \
+ -e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$$)/\1__attribute__((packed))\2/g' \
+ -e 's/(^|[ \t(])(inline|asm|volatile)([ \t(]|$$)/\1__\2__\3/g' \
+ -e 's@#(ifndef|define|endif[ \t]*/[*])[ \t]*_UAPI@#\1 @'
+endef
+
+define TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT
+ if test -f $(TARGET_CROSS)gdb ; then \
+ $(call gen_gdbinit_file) ; \
+ fi
+endef
+
+define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
+ $(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS)
+ $(TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER)
+ $(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
+endef
+
+# Even though we're installing things in both the staging, the host
+# and the target directory, we do everything within the
+# install-staging step, arbitrarily.
+define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_CMDS
+ $(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS)
+ $(TOOLCHAIN_EXTERNAL_INSTALL_BFIN_FDPIC)
+ $(TOOLCHAIN_EXTERNAL_INSTALL_BFIN_FLAT)
+endef
+
+$(eval $(generic-package))
Code Review / packages / trusty / cirros-testvm.git / blobdiff