6136765b23
Some installations mount /tmp with the 'noexec' option, which prevents running the program generated there to check the kernel headers. Avoid the problem by generating the program under $(BUILD_DIR), passed as the first argument to check-kernel-headers.sh. We could globally export a TMPDIR environment variable with some path under $(BUILD_DIR) but such solution would be too intrusive, depriving the user from the freedom to set TMPDIR at his will (or needs). Fixes: https://bugs.busybox.net/show_bug.cgi?id=12241 Signed-off-by: Carlos Santos <unixmania@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
592 lines
24 KiB
Makefile
592 lines
24 KiB
Makefile
################################################################################
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# External toolchain package infrastructure
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#
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# This package infrastructure implements the support for external
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# toolchains, i.e toolchains that are available pre-built, ready to
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# use. Such toolchain may either be readily available on the Web
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# (Linaro, Sourcery CodeBench, from processor vendors) or may be built
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# with tools like Crosstool-NG or Buildroot itself. So far, we have
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# tested this with:
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#
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# * Toolchains generated by Crosstool-NG
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# * Toolchains generated by Buildroot
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# * Toolchains provided by Linaro for the ARM and AArch64
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# architectures
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# * Sourcery CodeBench toolchains (from Mentor Graphics) for the ARM,
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# MIPS, PowerPC, x86_64 and NIOS 2 architectures. For the MIPS
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# toolchain, the -muclibc variant isn't supported yet, only the
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# default glibc-based variant is.
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# * Synopsys DesignWare toolchains for ARC cores
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#
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# The basic principle is the following
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#
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# 1. If the toolchain is not pre-installed, download and extract it
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# in $(TOOLCHAIN_EXTERNAL_INSTALL_DIR). Otherwise,
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# $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) points to were the toolchain has
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# already been installed by the user.
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#
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# 2. For all external toolchains, perform some checks on the
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# conformity between the toolchain configuration described in the
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# Buildroot menuconfig system, and the real configuration of the
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# external toolchain. This is for example important to make sure that
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# the Buildroot configuration system knows whether the toolchain
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# supports RPC, IPv6, locales, large files, etc. Unfortunately, these
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# things cannot be detected automatically, since the value of these
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# options (such as BR2_TOOLCHAIN_HAS_NATIVE_RPC) are needed at
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# configuration time because these options are used as dependencies
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# for other options. And at configuration time, we are not able to
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# retrieve the external toolchain configuration.
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#
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# 3. Copy the libraries needed at runtime to the target directory,
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# $(TARGET_DIR). Obviously, things such as the C library, the dynamic
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# loader and a few other utility libraries are needed if dynamic
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# applications are to be executed on the target system.
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#
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# 4. Copy the libraries and headers to the staging directory. This
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# will allow all further calls to gcc to be made using --sysroot
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# $(STAGING_DIR), which greatly simplifies the compilation of the
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# packages when using external toolchains. So in the end, only the
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# cross-compiler binaries remains external, all libraries and headers
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# are imported into the Buildroot tree.
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#
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# 5. Build a toolchain wrapper which executes the external toolchain
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# with a number of arguments (sysroot/march/mtune/..) hardcoded,
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# so we're sure the correct configuration is always used and the
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# toolchain behaves similar to an internal toolchain.
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# This toolchain wrapper and symlinks are installed into
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# $(HOST_DIR)/bin like for the internal toolchains, and the rest
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# of Buildroot is handled identical for the 2 toolchain types.
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################################################################################
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#
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# Definitions of where the toolchain can be found
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#
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TOOLCHAIN_EXTERNAL_PREFIX = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PREFIX))
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TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR = $(HOST_DIR)/opt/ext-toolchain
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ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
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TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)
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else
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TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PATH))
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endif
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ifeq ($(TOOLCHAIN_EXTERNAL_INSTALL_DIR),)
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ifneq ($(TOOLCHAIN_EXTERNAL_PREFIX),)
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# if no path set, figure it out from path
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TOOLCHAIN_EXTERNAL_BIN := $(dir $(shell which $(TOOLCHAIN_EXTERNAL_PREFIX)-gcc))
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endif
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else
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TOOLCHAIN_EXTERNAL_REL_BIN_PATH = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_REL_BIN_PATH))
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ifeq ($(TOOLCHAIN_EXTERNAL_REL_BIN_PATH),)
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TOOLCHAIN_EXTERNAL_REL_BIN_PATH = bin
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endif
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TOOLCHAIN_EXTERNAL_BIN = $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/$(TOOLCHAIN_EXTERNAL_REL_BIN_PATH)
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endif
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# If this is a buildroot toolchain, it already has a wrapper which we want to
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# bypass. Since this is only evaluated after it has been extracted, we can use
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# $(wildcard ...) here.
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TOOLCHAIN_EXTERNAL_SUFFIX = \
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$(if $(wildcard $(TOOLCHAIN_EXTERNAL_BIN)/*.br_real),.br_real)
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TOOLCHAIN_EXTERNAL_CROSS = $(TOOLCHAIN_EXTERNAL_BIN)/$(TOOLCHAIN_EXTERNAL_PREFIX)-
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TOOLCHAIN_EXTERNAL_CC = $(TOOLCHAIN_EXTERNAL_CROSS)gcc$(TOOLCHAIN_EXTERNAL_SUFFIX)
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TOOLCHAIN_EXTERNAL_CXX = $(TOOLCHAIN_EXTERNAL_CROSS)g++$(TOOLCHAIN_EXTERNAL_SUFFIX)
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TOOLCHAIN_EXTERNAL_FC = $(TOOLCHAIN_EXTERNAL_CROSS)gfortran$(TOOLCHAIN_EXTERNAL_SUFFIX)
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TOOLCHAIN_EXTERNAL_READELF = $(TOOLCHAIN_EXTERNAL_CROSS)readelf
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# Normal handling of downloaded toolchain tarball extraction.
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ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
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# As a regular package, the toolchain gets extracted in $(@D), but
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# since it's actually a fairly special package, we need it to be moved
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# into TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR.
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define TOOLCHAIN_EXTERNAL_MOVE
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rm -rf $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)
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mkdir -p $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)
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mv $(@D)/* $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)/
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endef
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endif
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#
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# Definitions of the list of libraries that should be copied to the target.
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#
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TOOLCHAIN_EXTERNAL_LIBS += ld*.so* libgcc_s.so.* libatomic.so.*
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ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y)
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TOOLCHAIN_EXTERNAL_LIBS += libc.so.* libcrypt.so.* libdl.so.* libm.so.* libnsl.so.* libresolv.so.* librt.so.* libutil.so.*
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ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
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TOOLCHAIN_EXTERNAL_LIBS += libpthread.so.*
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ifneq ($(BR2_PACKAGE_GDB)$(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY),)
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TOOLCHAIN_EXTERNAL_LIBS += libthread_db.so.*
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endif # gdbserver
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endif # ! no threads
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endif
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ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC),y)
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TOOLCHAIN_EXTERNAL_LIBS += libnss_files.so.* libnss_dns.so.* libmvec.so.* libanl.so.*
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endif
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ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL),y)
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TOOLCHAIN_EXTERNAL_LIBS += libc.so
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endif
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ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
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TOOLCHAIN_EXTERNAL_LIBS += libstdc++.so.*
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endif
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ifeq ($(BR2_TOOLCHAIN_HAS_FORTRAN),y)
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TOOLCHAIN_EXTERNAL_LIBS += libgfortran.so.*
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# fortran needs quadmath on x86 and x86_64
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ifeq ($(BR2_TOOLCHAIN_HAS_LIBQUADMATH),y)
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TOOLCHAIN_EXTERNAL_LIBS += libquadmath.so*
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endif
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endif
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ifeq ($(BR2_TOOLCHAIN_HAS_OPENMP),y)
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TOOLCHAIN_EXTERNAL_LIBS += libgomp.so.*
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endif
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TOOLCHAIN_EXTERNAL_LIBS += $(call qstrip,$(BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS))
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#
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# Definition of the CFLAGS to use with the external toolchain, as well as the
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# common toolchain wrapper build arguments
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#
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# march/mtune/floating point mode needs to be passed to the external toolchain
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# to select the right multilib variant
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ifeq ($(BR2_x86_64),y)
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TOOLCHAIN_EXTERNAL_CFLAGS += -m64
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_64
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endif
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ifneq ($(GCC_TARGET_ARCH),)
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TOOLCHAIN_EXTERNAL_CFLAGS += -march=$(GCC_TARGET_ARCH)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ARCH='"$(GCC_TARGET_ARCH)"'
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endif
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ifneq ($(GCC_TARGET_CPU),)
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TOOLCHAIN_EXTERNAL_CFLAGS += -mcpu=$(GCC_TARGET_CPU)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_CPU='"$(GCC_TARGET_CPU)"'
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endif
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ifneq ($(GCC_TARGET_ABI),)
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TOOLCHAIN_EXTERNAL_CFLAGS += -mabi=$(GCC_TARGET_ABI)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ABI='"$(GCC_TARGET_ABI)"'
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endif
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ifeq ($(BR2_TOOLCHAIN_HAS_MNAN_OPTION),y)
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ifneq ($(GCC_TARGET_NAN),)
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TOOLCHAIN_EXTERNAL_CFLAGS += -mnan=$(GCC_TARGET_NAN)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_NAN='"$(GCC_TARGET_NAN)"'
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endif
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endif
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ifneq ($(GCC_TARGET_FP32_MODE),)
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TOOLCHAIN_EXTERNAL_CFLAGS += -mfp$(GCC_TARGET_FP32_MODE)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FP32_MODE='"$(GCC_TARGET_FP32_MODE)"'
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endif
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ifneq ($(GCC_TARGET_FPU),)
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TOOLCHAIN_EXTERNAL_CFLAGS += -mfpu=$(GCC_TARGET_FPU)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FPU='"$(GCC_TARGET_FPU)"'
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endif
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ifneq ($(GCC_TARGET_FLOAT_ABI),)
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TOOLCHAIN_EXTERNAL_CFLAGS += -mfloat-abi=$(GCC_TARGET_FLOAT_ABI)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FLOAT_ABI='"$(GCC_TARGET_FLOAT_ABI)"'
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endif
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ifneq ($(GCC_TARGET_MODE),)
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TOOLCHAIN_EXTERNAL_CFLAGS += -m$(GCC_TARGET_MODE)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MODE='"$(GCC_TARGET_MODE)"'
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endif
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ifeq ($(BR2_BINFMT_FLAT),y)
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TOOLCHAIN_EXTERNAL_CFLAGS += -Wl,-elf2flt
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_BINFMT_FLAT
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endif
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ifeq ($(BR2_mipsel)$(BR2_mips64el),y)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MIPS_TARGET_LITTLE_ENDIAN
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TOOLCHAIN_EXTERNAL_CFLAGS += -EL
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endif
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ifeq ($(BR2_mips)$(BR2_mips64),y)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MIPS_TARGET_BIG_ENDIAN
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TOOLCHAIN_EXTERNAL_CFLAGS += -EB
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endif
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ifeq ($(BR2_arceb),y)
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ARC_TARGET_BIG_ENDIAN
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TOOLCHAIN_EXTERNAL_CFLAGS += -EB
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endif
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TOOLCHAIN_EXTERNAL_CFLAGS += $(call qstrip,$(BR2_TARGET_OPTIMIZATION))
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ifeq ($(BR2_SOFT_FLOAT),y)
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TOOLCHAIN_EXTERNAL_CFLAGS += -msoft-float
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_SOFTFLOAT=1
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endif
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += \
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-DBR_CROSS_PATH_SUFFIX='"$(TOOLCHAIN_EXTERNAL_SUFFIX)"'
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ifeq ($(filter $(HOST_DIR)/%,$(TOOLCHAIN_EXTERNAL_BIN)),)
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# TOOLCHAIN_EXTERNAL_BIN points outside HOST_DIR => absolute path
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += \
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-DBR_CROSS_PATH_ABS='"$(TOOLCHAIN_EXTERNAL_BIN)"'
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else
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# TOOLCHAIN_EXTERNAL_BIN points inside HOST_DIR => relative path
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TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += \
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-DBR_CROSS_PATH_REL='"$(TOOLCHAIN_EXTERNAL_BIN:$(HOST_DIR)/%=%)"'
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endif
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#
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# The following functions creates the symbolic links needed to get the
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# cross-compilation tools visible in $(HOST_DIR)/bin. Some of
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# links are done directly to the corresponding tool in the external
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# toolchain installation directory, while some other links are done to
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# the toolchain wrapper (preprocessor, C, C++ and Fortran compiler)
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#
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# We skip gdb symlink when we are building our own gdb to prevent two
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# gdb's in $(HOST_DIR)/bin.
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#
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# The LTO support in gcc creates wrappers for ar, ranlib and nm which load
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# the lto plugin. These wrappers are called *-gcc-ar, *-gcc-ranlib, and
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# *-gcc-nm and should be used instead of the real programs when -flto is
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# used. However, we should not add the toolchain wrapper for them, and they
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# match the *cc-* pattern. Therefore, an additional case is added for *-ar,
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# *-ranlib and *-nm.
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define TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER
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$(Q)cd $(HOST_DIR)/bin; \
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for i in $(TOOLCHAIN_EXTERNAL_CROSS)*; do \
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base=$${i##*/}; \
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case "$$base" in \
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*-ar|*-ranlib|*-nm) \
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ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%..%') .; \
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;; \
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*cc|*cc-*|*++|*++-*|*cpp|*-gfortran) \
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ln -sf toolchain-wrapper $$base; \
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;; \
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*gdb|*gdbtui) \
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if test "$(BR2_PACKAGE_HOST_GDB)" != "y"; then \
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ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%..%') .; \
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fi \
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;; \
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*) \
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ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%..%') .; \
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;; \
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esac; \
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done
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endef
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# Various utility functions used by the external toolchain package
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# infrastructure. Those functions are mainly responsible for:
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#
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# - installation the toolchain libraries to $(TARGET_DIR)
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# - copying the toolchain sysroot to $(STAGING_DIR)
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# - installing a gdbinit file
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#
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# Details about sysroot directory selection.
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#
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# To find the sysroot directory, we use the trick of looking for the
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# 'libc.a' file with the -print-file-name gcc option, and then
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# mangling the path to find the base directory of the sysroot.
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#
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# Note that we do not use the -print-sysroot option, because it is
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# only available since gcc 4.4.x, and we only recently dropped support
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# for 4.2.x and 4.3.x.
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#
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# When doing this, we don't pass any option to gcc that could select a
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# multilib variant (such as -march) as we want the "main" sysroot,
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# which contains all variants of the C library in the case of multilib
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# toolchains. We use the TARGET_CC_NO_SYSROOT variable, which is the
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# path of the cross-compiler, without the --sysroot=$(STAGING_DIR),
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# since what we want to find is the location of the original toolchain
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# sysroot. This "main" sysroot directory is stored in SYSROOT_DIR.
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#
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# Then, multilib toolchains are a little bit more complicated, since
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# they in fact have multiple sysroots, one for each variant supported
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# by the toolchain. So we need to find the particular sysroot we're
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# interested in.
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#
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# To do so, we ask the compiler where its sysroot is by passing all
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# flags (including -march and al.), except the --sysroot flag since we
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# want to the compiler to tell us where its original sysroot
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# is. ARCH_SUBDIR will contain the subdirectory, in the main
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# SYSROOT_DIR, that corresponds to the selected architecture
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# variant. ARCH_SYSROOT_DIR will contain the full path to this
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# location.
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#
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# One might wonder why we don't just bother with ARCH_SYSROOT_DIR. The
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# fact is that in multilib toolchains, the header files are often only
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# present in the main sysroot, and only the libraries are available in
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# each variant-specific sysroot directory.
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# toolchain_find_sysroot returns the sysroot location for the given
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# compiler + flags. We need to handle cases where libc.a is in:
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#
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# - lib/
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# - usr/lib/
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# - lib32/
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# - lib64/
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# - lib32-fp/ (Cavium toolchain)
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# - lib64-fp/ (Cavium toolchain)
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# - usr/lib/<tuple>/ (Linaro toolchain)
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#
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# And variations on these.
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define toolchain_find_sysroot
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$$(printf $(call toolchain_find_libc_a,$(1)) | sed -r -e 's:/(usr/)?lib(32|64)?([^/]*)?/([^/]*/)?libc\.a:/:')
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endef
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# Returns the lib subdirectory for the given compiler + flags (i.e
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# typically lib32 or lib64 for some toolchains)
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define toolchain_find_libdir
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$$(printf $(call toolchain_find_libc_a,$(1)) | sed -r -e 's:.*/(usr/)?(lib(32|64)?([^/]*)?(/[^/]*)?)/libc.a:\2:')
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endef
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# Returns the location of the libc.a file for the given compiler + flags
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define toolchain_find_libc_a
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$$(readlink -f $$(LANG=C $(1) -print-file-name=libc.a))
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endef
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# Integration of the toolchain into Buildroot: find the main sysroot
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# and the variant-specific sysroot, then copy the needed libraries to
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# the $(TARGET_DIR) and copy the whole sysroot (libraries and headers)
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# to $(STAGING_DIR).
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#
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# Variables are defined as follows:
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#
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# SYSROOT_DIR: the main sysroot directory, deduced from the location of
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# the libc.a file in the default multilib variant, by
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# removing the usr/lib[32|64]/libc.a part of the path.
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# Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/
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#
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# ARCH_SYSROOT_DIR: the sysroot of the selected multilib variant,
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# deduced from the location of the libc.a file in the
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# selected multilib variant (taking into account the
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# CFLAGS), by removing usr/lib[32|64]/libc.a at the end
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# of the path.
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# Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/mips16/soft-float/el/
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#
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# ARCH_LIB_DIR: 'lib', 'lib32' or 'lib64' depending on where libraries
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# are stored. Deduced from the location of the libc.a file
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# in the selected multilib variant, by looking at
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# usr/lib??/libc.a.
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# Ex: lib
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#
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# ARCH_SUBDIR: the relative location of the sysroot of the selected
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# multilib variant compared to the main sysroot.
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# Ex: mips16/soft-float/el
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#
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# SUPPORT_LIB_DIR: some toolchains, such as recent Linaro toolchains,
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# store GCC support libraries (libstdc++,
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# libgcc_s, etc.) outside of the sysroot. In
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# this case, SUPPORT_LIB_DIR is set to a
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# non-empty value, and points to the directory
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# where these support libraries are
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# available. Those libraries will be copied to
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# our sysroot, and the directory will also be
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# considered when searching libraries for copy
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# to the target filesystem.
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#
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# Please be very careful to check the major toolchain sources:
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# Buildroot, Crosstool-NG, CodeSourcery and Linaro
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# before doing any modification on the below logic.
|
|
|
|
ifeq ($(BR2_STATIC_LIBS),)
|
|
define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS
|
|
$(Q)$(call MESSAGE,"Copying external toolchain libraries to target...")
|
|
$(Q)for libpattern in $(TOOLCHAIN_EXTERNAL_LIBS); do \
|
|
$(call copy_toolchain_lib_root,$$libpattern); \
|
|
done
|
|
endef
|
|
endif
|
|
|
|
ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY),y)
|
|
define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER
|
|
$(Q)$(call MESSAGE,"Copying gdbserver")
|
|
$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
|
|
ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
|
|
gdbserver_found=0 ; \
|
|
for d in $${ARCH_SYSROOT_DIR}/usr \
|
|
$${ARCH_SYSROOT_DIR}/../debug-root/usr \
|
|
$${ARCH_SYSROOT_DIR}/usr/$${ARCH_LIB_DIR} \
|
|
$(TOOLCHAIN_EXTERNAL_INSTALL_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 [ $${gdbserver_found} -eq 0 ] ; then \
|
|
echo "Could not find gdbserver in external toolchain" ; \
|
|
exit 1 ; \
|
|
fi
|
|
endef
|
|
endif
|
|
|
|
define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS
|
|
$(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
|
|
ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
|
|
ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
|
|
SUPPORT_LIB_DIR="" ; \
|
|
if test `find $${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 $${LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
|
|
fi ; \
|
|
fi ; \
|
|
if [ "$${SYSROOT_DIR}" == "$${ARCH_SYSROOT_DIR}" ] ; then \
|
|
ARCH_SUBDIR="" ; \
|
|
elif [ "`dirname $${ARCH_SYSROOT_DIR}`" = "`dirname $${SYSROOT_DIR}`" ] ; then \
|
|
SYSROOT_DIR_DIRNAME=`dirname $${SYSROOT_DIR}`/ ; \
|
|
ARCH_SUBDIR=`echo $${ARCH_SYSROOT_DIR} | sed -r -e "s:^$${SYSROOT_DIR_DIRNAME}(.*)/$$:\1:"` ; \
|
|
else \
|
|
ARCH_SUBDIR=`echo $${ARCH_SYSROOT_DIR} | sed -r -e "s:^$${SYSROOT_DIR}(.*)/$$:\1:"` ; \
|
|
fi ; \
|
|
$(call MESSAGE,"Copying external toolchain sysroot to staging...") ; \
|
|
$(call copy_toolchain_sysroot,$${SYSROOT_DIR},$${ARCH_SYSROOT_DIR},$${ARCH_SUBDIR},$${ARCH_LIB_DIR},$${SUPPORT_LIB_DIR})
|
|
endef
|
|
|
|
# Create a symlink from (usr/)$(ARCH_LIB_DIR) to lib.
|
|
# Note: the skeleton package additionally creates lib32->lib or lib64->lib
|
|
# (as appropriate)
|
|
#
|
|
# $1: destination directory (TARGET_DIR / STAGING_DIR)
|
|
create_lib_symlinks = \
|
|
$(Q)DESTDIR="$(strip $1)" ; \
|
|
ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
|
|
if [ ! -e "$${DESTDIR}/$${ARCH_LIB_DIR}" -a ! -e "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ]; then \
|
|
relpath="$(call relpath_prefix,$${ARCH_LIB_DIR})" ; \
|
|
ln -snf $${relpath}lib "$${DESTDIR}/$${ARCH_LIB_DIR}" ; \
|
|
ln -snf $${relpath}lib "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ; \
|
|
fi
|
|
|
|
define TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK
|
|
$(call create_lib_symlinks,$(STAGING_DIR))
|
|
endef
|
|
|
|
define TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK
|
|
$(call create_lib_symlinks,$(TARGET_DIR))
|
|
endef
|
|
|
|
#
|
|
# Generate gdbinit file for use with Buildroot
|
|
#
|
|
define TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT
|
|
$(Q)if test -f $(TARGET_CROSS)gdb ; then \
|
|
$(call MESSAGE,"Installing gdbinit"); \
|
|
$(gen_gdbinit_file); \
|
|
fi
|
|
endef
|
|
|
|
# uClibc-ng dynamic loader is called ld-uClibc.so.1, but gcc is not
|
|
# patched specifically for uClibc-ng, so it continues to generate
|
|
# binaries that expect the dynamic loader to be named ld-uClibc.so.0,
|
|
# like with the original uClibc. Therefore, we create an additional
|
|
# symbolic link to make uClibc-ng systems work properly.
|
|
define TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO
|
|
$(Q)if test -e $(TARGET_DIR)/lib/ld-uClibc.so.1; then \
|
|
ln -sf ld-uClibc.so.1 $(TARGET_DIR)/lib/ld-uClibc.so.0 ; \
|
|
fi
|
|
$(Q)if test -e $(TARGET_DIR)/lib/ld64-uClibc.so.1; then \
|
|
ln -sf ld64-uClibc.so.1 $(TARGET_DIR)/lib/ld64-uClibc.so.0 ; \
|
|
fi
|
|
endef
|
|
|
|
|
|
################################################################################
|
|
# inner-toolchain-external-package -- defines the generic installation rules
|
|
# for external toolchain packages
|
|
#
|
|
# argument 1 is the lowercase package name
|
|
# argument 2 is the uppercase package name, including a HOST_ prefix
|
|
# for host packages
|
|
# argument 3 is the uppercase package name, without the HOST_ prefix
|
|
# for host packages
|
|
# argument 4 is the type (target or host)
|
|
################################################################################
|
|
define inner-toolchain-external-package
|
|
|
|
$(2)_INSTALL_STAGING = YES
|
|
$(2)_ADD_TOOLCHAIN_DEPENDENCY = NO
|
|
|
|
# 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 ($$(BR2_TOOLCHAIN_EXTERNAL_PREINSTALLED),y)
|
|
$(2)_SITE =
|
|
$(2)_SOURCE =
|
|
endif
|
|
|
|
ifeq ($$(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
|
|
$(2)_EXCLUDES = usr/lib/locale/*
|
|
|
|
$(2)_POST_EXTRACT_HOOKS += \
|
|
TOOLCHAIN_EXTERNAL_MOVE
|
|
endif
|
|
|
|
# Checks for an already installed toolchain: check the toolchain
|
|
# location, check that it is usable, 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 $(2)_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,$$(TOOLCHAIN_EXTERNAL_CC))" ; \
|
|
$$(call check_kernel_headers_version,\
|
|
$$(BUILD_DIR)\
|
|
$$(call toolchain_find_sysroot,$$(TOOLCHAIN_EXTERNAL_CC)),\
|
|
$$(call qstrip,$$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))); \
|
|
$$(call check_gcc_version,$$(TOOLCHAIN_EXTERNAL_CC),\
|
|
$$(call qstrip,$$(BR2_TOOLCHAIN_GCC_AT_LEAST))); \
|
|
if test "$$(BR2_arm)" = "y" ; then \
|
|
$$(call check_arm_abi,\
|
|
"$$(TOOLCHAIN_EXTERNAL_CC) $$(TOOLCHAIN_EXTERNAL_CFLAGS)") ; \
|
|
fi ; \
|
|
if test "$$(BR2_INSTALL_LIBSTDCPP)" = "y" ; then \
|
|
$$(call check_cplusplus,$$(TOOLCHAIN_EXTERNAL_CXX)) ; \
|
|
fi ; \
|
|
if test "$$(BR2_TOOLCHAIN_HAS_FORTRAN)" = "y" ; then \
|
|
$$(call check_fortran,$$(TOOLCHAIN_EXTERNAL_FC)) ; \
|
|
fi ; \
|
|
if test "$$(BR2_TOOLCHAIN_HAS_OPENMP)" = "y" ; then \
|
|
$$(call check_openmp,$$(TOOLCHAIN_EXTERNAL_CC)) ; \
|
|
fi ; \
|
|
if test "$$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)" = "y" ; then \
|
|
$$(call check_uclibc,$$$${SYSROOT_DIR}) ; \
|
|
elif test "$$(BR2_TOOLCHAIN_EXTERNAL_MUSL)" = "y" ; then \
|
|
$$(call check_musl,\
|
|
"$$(TOOLCHAIN_EXTERNAL_CC) $$(TOOLCHAIN_EXTERNAL_CFLAGS)") ; \
|
|
else \
|
|
$$(call check_glibc,$$$${SYSROOT_DIR}) ; \
|
|
fi
|
|
$$(Q)$$(call check_toolchain_ssp,$$(TOOLCHAIN_EXTERNAL_CC),$(BR2_SSP_OPTION))
|
|
endef
|
|
|
|
$(2)_TOOLCHAIN_WRAPPER_ARGS += $$(TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS)
|
|
|
|
$(2)_BUILD_CMDS = $$(TOOLCHAIN_WRAPPER_BUILD)
|
|
|
|
define $(2)_INSTALL_STAGING_CMDS
|
|
$$(TOOLCHAIN_WRAPPER_INSTALL)
|
|
$$(TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK)
|
|
$$(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS)
|
|
$$(TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER)
|
|
$$(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
|
|
endef
|
|
|
|
# Even though we're installing things in both the staging, the host
|
|
# and the target directory, we do everything within the
|
|
# install-staging step, arbitrarily.
|
|
define $(2)_INSTALL_TARGET_CMDS
|
|
$$(TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK)
|
|
$$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS)
|
|
$$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER)
|
|
$$(TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO)
|
|
endef
|
|
|
|
# Call the generic package infrastructure to generate the necessary
|
|
# make targets
|
|
$(call inner-generic-package,$(1),$(2),$(3),$(4))
|
|
|
|
endef
|
|
|
|
toolchain-external-package = $(call inner-toolchain-external-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
|