# # This file implements the support for external toolchains, i.e # toolchains that have not been produced by Buildroot itself and that # Buildroot can download from the Web or that are already available on # the system on which Buildroot runs. So far, we have tested this # with: # # * Toolchains generated by Crosstool-NG # * Toolchains generated by Buildroot # * ARM, MIPS and PowerPC toolchains made available by # Codesourcery. For the MIPS toolchain, the -muclibc variant isn't # supported yet, only the default glibc-based variant is. # # The basic principle is the following # # 1. If the toolchain is not pre-installed, download and extract it # in $(TOOLCHAIN_EXTERNAL_DIR). # # 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 # $(HOST_DIR)/usr/bin like for the internal toolchains, and the rest # of Buildroot is handled identical for the 2 toolchain types. LIB_EXTERNAL_LIBS=ld*.so libc.so libcrypt.so libdl.so libgcc_s.so libm.so libnsl.so libresolv.so librt.so libutil.so LIB_EXTERNAL_LIBS+=$(call qstrip,$(BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS)) ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC),y) LIB_EXTERNAL_LIBS+=libnss_files.so libnss_dns.so endif ifeq ($(BR2_INSTALL_LIBSTDCPP),y) USR_LIB_EXTERNAL_LIBS+=libstdc++.so endif ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y) LIB_EXTERNAL_LIBS+=libpthread.so ifneq ($(BR2_PACKAGE_GDB_SERVER)$(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY),) LIB_EXTERNAL_LIBS+=libthread_db.so endif # gdbserver endif # ! no threads # Details about sysroot directory selection. # # To find the sysroot directory: # # * We first try the -print-sysroot option, available in gcc 4.4.x # and in some Codesourcery toolchains. # # * If this option is not available, we fallback to the value of # --with-sysroot as visible in CROSS-gcc -v. # # When doing those tests, 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_DIR=$(HOST_DIR)/opt/ext-toolchain else TOOLCHAIN_EXTERNAL_DIR=$(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PATH)) endif ifeq ($(TOOLCHAIN_EXTERNAL_DIR),) # if no path set, figure it out from path TOOLCHAIN_EXTERNAL_BIN := $(shell dirname $(shell which $(TOOLCHAIN_EXTERNAL_PREFIX)-gcc)) else ifeq ($(BR2_bfin),y) TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_DIR)/$(TOOLCHAIN_EXTERNAL_PREFIX)/bin else TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_DIR)/bin endif endif TOOLCHAIN_EXTERNAL_CROSS=$(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:$(HOST_DIR)/%=%)"' endif CC_TARGET_TUNE_:=$(call qstrip,$(BR2_GCC_TARGET_TUNE)) ifeq ($(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_TUNE_),) TOOLCHAIN_EXTERNAL_CFLAGS += -mtune=$(CC_TARGET_TUNE_) TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_TUNE='"$(CC_TARGET_TUNE_)"' 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 ($(BR2_BINFMT_FLAT),y) TOOLCHAIN_EXTERNAL_CFLAGS += -Wl,-elf2flt TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_BINFMT_FLAT endif ifneq ($(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 ($(BR2_SOFT_FLOAT),y) TOOLCHAIN_EXTERNAL_CFLAGS += -msoft-float TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_SOFTFLOAT=1 endif ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y) TOOLCHAIN_EXTERNAL_DEPENDENCIES = $(TOOLCHAIN_EXTERNAL_DIR)/.extracted endif ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201109),y) TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi/ TOOLCHAIN_EXTERNAL_SOURCE = arm-2011.09-70-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201203),y) TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi/ TOOLCHAIN_EXTERNAL_SOURCE = arm-2012.03-57-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2 else ifeq ($(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_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 $(@D)/arago-2011.09/armv7a/* $(@D)/ rm -rf $(@D)/arago-2011.09/ endef else ifeq ($(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 $(@D)/arago-2011.09/armv5te/* $(@D)/ rm -rf $(@D)/arago-2011.09/ endef else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_2013_06),y) TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/13.06/components/toolchain/binaries/ TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-arm-linux-gnueabihf-4.8-2013.06_linux.tar.xz else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_2013_07),y) TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/13.07/components/toolchain/binaries/ TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-arm-linux-gnueabihf-4.8-2013.07-1_linux.tar.xz else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_2013_08),y) TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/13.08/components/toolchain/binaries/ TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-arm-linux-gnueabihf-4.8-2013.08_linux.tar.xz else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201203),y) TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu/ TOOLCHAIN_EXTERNAL_SOURCE = mips-2012.03-63-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2 else ifeq ($(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 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201305),y) TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu/ TOOLCHAIN_EXTERNAL_SOURCE = mips-2013.05-66-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2 else ifeq ($(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 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 ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103),y) TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu/ TOOLCHAIN_EXTERNAL_SOURCE = renesas-2011.03-37-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2 else ifeq ($(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_BLACKFIN_UCLINUX_2012R1),y) TOOLCHAIN_EXTERNAL_SITE_1 = http://blackfin.uclinux.org/gf/download/frsrelease/559/9858/ TOOLCHAIN_EXTERNAL_SOURCE_1 = blackfin-toolchain-2012R1-RC2.i386.tar.bz2 TOOLCHAIN_EXTERNAL_SITE_2 = http://blackfin.uclinux.org/gf/download/frsrelease/559/9866/ TOOLCHAIN_EXTERNAL_SOURCE_2 = blackfin-toolchain-uclibc-full-2012R1-RC2.i386.tar.bz2 TOOLCHAIN_EXTERNAL_SOURCE = $(TOOLCHAIN_EXTERNAL_SOURCE_1) $(TOOLCHAIN_EXTERNAL_SOURCE_2) else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2),y) TOOLCHAIN_EXTERNAL_SITE_1 = http://blackfin.uclinux.org/gf/download/frsrelease/588/10139/ TOOLCHAIN_EXTERNAL_SOURCE_1 = blackfin-toolchain-2012R2-RC2.i386.tar.bz2 TOOLCHAIN_EXTERNAL_SITE_2 = http://blackfin.uclinux.org/gf/download/frsrelease/588/10147/ TOOLCHAIN_EXTERNAL_SOURCE_2 = blackfin-toolchain-uclibc-full-2012R2-RC2.i386.tar.bz2 TOOLCHAIN_EXTERNAL_SOURCE = $(TOOLCHAIN_EXTERNAL_SOURCE_1) $(TOOLCHAIN_EXTERNAL_SOURCE_2) else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_14_3),y) TOOLCHAIN_EXTERNAL_SITE = http://sources.buildroot.net/ TOOLCHAIN_EXTERNAL_SOURCE = lin32-microblazeel-unknown-linux-gnu_14.3_early.tar.xz else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_V2),y) TOOLCHAIN_EXTERNAL_SITE = http://sources.buildroot.net/ TOOLCHAIN_EXTERNAL_SOURCE = microblazeel-unknown-linux-gnu.tgz else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_14_3),y) TOOLCHAIN_EXTERNAL_SITE = http://sources.buildroot.net/ TOOLCHAIN_EXTERNAL_SOURCE = lin32-microblaze-unknown-linux-gnu_14.3_early.tar.xz else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2),y) TOOLCHAIN_EXTERNAL_SITE = http://sources.buildroot.net/ TOOLCHAIN_EXTERNAL_SOURCE = microblaze-unknown-linux-gnu.tgz else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_13_06),y) TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/13.06/components/toolchain/binaries/ TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-aarch64-linux-gnu-4.8-2013.06_linux.tar.xz else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_13_07),y) TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/13.07/components/toolchain/binaries/ TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-aarch64-linux-gnu-4.8-2013.07-1_linux.tar.xz else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_13_08),y) TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/13.08/components/toolchain/binaries/ TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-aarch64-linux-gnu-4.8-2013.08_linux.tar.xz else # Custom toolchain TOOLCHAIN_EXTERNAL_SITE = $(dir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL))) TOOLCHAIN_EXTERNAL_SOURCE = $(notdir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL))) # A value must be set (even if unused), otherwise the # $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE) rule would override the main # $(DL_DIR) rule ifeq (,$(TOOLCHAIN_EXTERNAL_SOURCE)) TOOLCHAIN_EXTERNAL_SOURCE = none endif endif # 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. ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R1)$(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2),y) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE_1): $(call DOWNLOAD,$(TOOLCHAIN_EXTERNAL_SITE_1:/=)/$(TOOLCHAIN_EXTERNAL_SOURCE_1)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE_2): $(call DOWNLOAD,$(TOOLCHAIN_EXTERNAL_SITE_2:/=)/$(TOOLCHAIN_EXTERNAL_SOURCE_2)) $(TOOLCHAIN_EXTERNAL_DIR)/.extracted: $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE_1) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE_2) mkdir -p $(@D) $(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_SOURCE_1)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE_1) | \ $(TAR) $(TAR_STRIP_COMPONENTS)=3 --hard-dereference -C $(@D) $(TAR_OPTIONS) - $(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_SOURCE_2)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE_2) | \ $(TAR) $(TAR_STRIP_COMPONENTS)=3 --hard-dereference -C $(@D) $(TAR_OPTIONS) - $(Q)touch $@ else # Download and extraction of a toolchain $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE): $(call DOWNLOAD,$(TOOLCHAIN_EXTERNAL_SITE)$(TOOLCHAIN_EXTERNAL_SOURCE),$(TOOLCHAIN_EXTERNAL_SOURCE)) $(TOOLCHAIN_EXTERNAL_DIR)/.extracted: $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE) mkdir -p $(@D) $(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_SOURCE)) $^ | \ $(TAR) $(TAR_STRIP_COMPONENTS)=1 --exclude='usr/lib/locale/*' -C $(@D) $(TAR_OPTIONS) - $(TOOLCHAIN_EXTERNAL_FIXUP_CMDS) $(Q)touch $@ endif # 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, # type of C library and all C library features. $(STAMP_DIR)/ext-toolchain-checked: $(TOOLCHAIN_EXTERNAL_DEPENDENCIES) @$(call MESSAGE,"Checking external toolchain settings") $(Q)$(call check_cross_compiler_exists,$(TOOLCHAIN_EXTERNAL_CC)) $(Q)LIBC_A_LOCATION=`readlink -f $$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) -print-file-name=libc.a)` ; \ SYSROOT_DIR=`echo $${LIBC_A_LOCATION} | sed -r -e 's:usr/lib(32|64)?/(.*/)?libc\.a::'` ; \ if test -z "$${SYSROOT_DIR}" ; then \ @echo "External toolchain doesn't support --sysroot. Cannot use." ; \ exit 1 ; \ fi ; \ if test "$(BR2_arm)" = "y" ; then \ $(call check_arm_abi,\ "$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS)",\ $(TOOLCHAIN_EXTERNAL_READELF)) ; \ fi ; \ if test "$(BR2_INSTALL_LIBSTDCPP)" = "y" ; then \ $(call check_cplusplus,$(TOOLCHAIN_EXTERNAL_CXX)) ; \ fi ; \ if test "$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)" = "y" ; then \ $(call check_uclibc,$${SYSROOT_DIR}) ; \ else \ $(call check_glibc,$${SYSROOT_DIR}) ; \ fi $(Q)touch $@ # 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. $(STAMP_DIR)/ext-toolchain-installed: $(STAMP_DIR)/ext-toolchain-checked $(Q)LIBC_A_LOCATION=`readlink -f $$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) -print-file-name=libc.a)` ; \ SYSROOT_DIR=`echo $${LIBC_A_LOCATION} | sed -r -e 's:usr/lib(32|64)?/(.*/)?libc\.a::'` ; \ if test -z "$${SYSROOT_DIR}" ; then \ @echo "External toolchain doesn't support --sysroot. Cannot use." ; \ exit 1 ; \ fi ; \ ARCH_LIBC_A_LOCATION=`readlink -f $$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libc.a)` ; \ ARCH_SYSROOT_DIR=`echo $${ARCH_LIBC_A_LOCATION} | sed -r -e 's:usr/lib(32|64)?/(.*/)?libc\.a::'` ; \ ARCH_LIB_DIR=`echo $${ARCH_LIBC_A_LOCATION} | sed -r -e 's:.*/usr/(lib(32|64)?)/(.*/)?libc.a:\1:'` ; \ SUPPORT_LIB_DIR="" ; \ if test `find $${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_PREFER_STATIC_LIB)" ; 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 ; \ $(call MESSAGE,"Copying external toolchain sysroot to staging...") ; \ $(call copy_toolchain_sysroot,$${SYSROOT_DIR},$${ARCH_SYSROOT_DIR},$${ARCH_SUBDIR},$${ARCH_LIB_DIR},$${SUPPORT_LIB_DIR}) ; \ if test "$(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY)" = "y"; then \ $(call MESSAGE,"Copying gdbserver") ; \ gdbserver_found=0 ; \ for d in $${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 ; \ touch $@ # 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. $(STAMP_DIR)/ext-toolchain-bfin-fdpic-shared-installed: $(STAMP_DIR)/ext-toolchain-checked $(Q)$(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_LIBC_A_LOCATION=`readlink -f $$(LANG=C $${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libc.a)` ; \ FDPIC_SYSROOT_DIR=`echo $${FDPIC_LIBC_A_LOCATION} | sed -r -e 's:usr/lib(32|64)?/(.*/)?libc\.a::'` ; \ FDPIC_LIB_DIR=`echo $${FDPIC_LIBC_A_LOCATION} | sed -r -e 's:.*/usr/(lib(32|64)?)/(.*/)?libc.a:\1:'` ; \ 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},$$libs,/usr/lib); \ done ; \ touch $@ # Special installation target used on the Blackfin architecture when # shared FLAT is not the primary format being used, but the user has # nonetheless requested the installation of the shared FLAT libraries # to the target filesystem. The flat libraries are found and linked # according to the index in name "libN.so". Index 1 is reserved for # the standard C library. Customer libraries can use 4 and above. $(STAMP_DIR)/ext-toolchain-bfin-shared-flat-installed: $(STAMP_DIR)/ext-toolchain-checked $(Q)$(call MESSAGE,"Install external toolchain FLAT libraries to target...") ; \ FLAT_EXTERNAL_CC=$(dir $(TOOLCHAIN_EXTERNAL_CC))../../bfin-uclinux/bin/bfin-uclinux-gcc ; \ FLAT_LIBC_A_LOCATION=`$${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 $${FLAT_LIBC_A_LOCATION} $(TARGET_DIR)/lib/lib1.so; \ fi ; \ touch $@ TOOLCHAIN_EXTERNAL_INSTALL = $(STAMP_DIR)/ext-toolchain-installed ifeq ($(BR2_BFIN_INSTALL_FDPIC_SHARED),y) TOOLCHAIN_EXTERNAL_INSTALL += $(STAMP_DIR)/ext-toolchain-bfin-fdpic-shared-installed endif ifeq ($(BR2_BFIN_INSTALL_FLAT_SHARED),y) TOOLCHAIN_EXTERNAL_INSTALL += $(STAMP_DIR)/ext-toolchain-bfin-shared-flat-installed endif # Build toolchain wrapper for preprocessor, C and C++ compiler and setup # symlinks for everything else. Skip gdb symlink when we are building our # own gdb to prevent two gdb's in output/host/usr/bin. $(HOST_DIR)/usr/bin/ext-toolchain-wrapper: $(TOOLCHAIN_EXTERNAL_INSTALL) $(Q)$(call MESSAGE,"Building ext-toolchain wrapper") mkdir -p $(HOST_DIR)/usr/bin; cd $(HOST_DIR)/usr/bin; \ for i in $(TOOLCHAIN_EXTERNAL_CROSS)*; do \ base=$${i##*/}; \ case "$$base" in \ *cc|*cc-*|*++|*++-*|*cpp) \ ln -sf $(@F) $$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 ; # We use --hash-style=both to increase the compatibility of # the generated binary with older platforms $(HOSTCC) $(HOST_CFLAGS) $(TOOLCHAIN_EXTERNAL_WRAPPER_ARGS) -s -Wl,--hash-style=both \ toolchain/toolchain-external/ext-toolchain-wrapper.c -o $@ toolchain-external: dependencies $(HOST_DIR)/usr/bin/ext-toolchain-wrapper ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y) # download ext toolchain if so configured toolchain-external-source: $(addprefix $(DL_DIR)/,$(TOOLCHAIN_EXTERNAL_SOURCE)) endif