Merge branch 'codesourcery-toolchain-support' of git://git.busybox.net/~tpetazzoni/git/buildroot
This commit is contained in:
Peter Korsgaard
commit
fd3194a1c6
@ -34,16 +34,7 @@ ifeq ($(BR2_DEBUG_3),y)
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TARGET_DEBUGGING=-g3
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endif
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#########################################################################
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ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
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TARGET_CFLAGS=$(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING) \
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-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
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TARGET_LDFLAGS+=-L$(STAGING_DIR)/lib -L$(STAGING_DIR)/usr/lib
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ifeq ($(BR2_TOOLCHAIN_SYSROOT),y)
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TARGET_CFLAGS+= $(BR2_SYSROOT) $(BR2_ISYSROOT)
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TARGET_LDFLAGS+= $(BR2_SYSROOT)
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endif
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TARGET_CFLAGS=$(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING)
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CC_TARGET_TUNE_:=$(call qstrip,$(BR2_GCC_TARGET_TUNE))
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CC_TARGET_ARCH_:=$(call qstrip,$(BR2_GCC_TARGET_ARCH))
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@ -86,11 +77,20 @@ ifeq ($(BR2_LARGEFILE),y)
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TARGET_CFLAGS+=-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
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endif
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#########################################################################
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ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
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TARGET_CFLAGS+=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
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TARGET_LDFLAGS+=-L$(STAGING_DIR)/lib -L$(STAGING_DIR)/usr/lib
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TARGET_CXXFLAGS=$(TARGET_CFLAGS)
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ifeq ($(BR2_TOOLCHAIN_SYSROOT),y)
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TARGET_CFLAGS+= $(BR2_SYSROOT) $(BR2_ISYSROOT)
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TARGET_LDFLAGS+= $(BR2_SYSROOT)
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endif
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#########################################################################
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else ifeq ($(BR2_TOOLCHAIN_EXTERNAL),y)
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TARGET_CFLAGS=$(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING) --sysroot $(STAGING_DIR)/
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TARGET_CFLAGS+=--sysroot $(STAGING_DIR)/
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TARGET_CXXFLAGS=$(TARGET_CFLAGS)
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TARGET_LDFLAGS=--sysroot $(STAGING_DIR)/
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endif
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@ -47,6 +47,7 @@ CONFIG_FEATURE_SYSLOG=y
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# CONFIG_FEATURE_SHARED_BUSYBOX is not set
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# CONFIG_LFS is not set
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CONFIG_CROSS_COMPILER_PREFIX=""
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CONFIG_EXTRA_CFLAGS=""
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#
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# Debugging Options
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@ -45,6 +45,8 @@ $(BUSYBOX_DIR)/.config: $(BUSYBOX_DIR)/.unpacked $(BUSYBOX_CONFIG_FILE)
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cp -f $(BUSYBOX_CONFIG_FILE) $(BUSYBOX_DIR)/.config
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$(SED) s,^CONFIG_PREFIX=.*,CONFIG_PREFIX=\"$(TARGET_DIR)\", \
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$(BUSYBOX_DIR)/.config
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$(SED) 's,^CONFIG_EXTRA_CFLAGS=.*,CONFIG_EXTRA_CFLAGS=\"$(BUSYBOX_CFLAGS)\",' \
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$(BUSYBOX_DIR)/.config
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# id applet breaks on >=1.13.0 with old uclibc unless the bb pwd routines are used
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ifeq ($(BR2_BUSYBOX_VERSION_1_13_X)$(BR2_BUSYBOX_VERSION_1_14_X)$(BR2_UCLIBC_VERSION_0_9_28_3)$(BR2_UCLIBC_VERSION_0_9_29),yy)
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if grep -q 'CONFIG_ID=y' $(BUSYBOX_DIR)/.config; \
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@ -105,15 +107,13 @@ endif
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$(BUSYBOX_DIR)/busybox: $(BUSYBOX_DIR)/.config
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$(MAKE) CC=$(TARGET_CC) CROSS_COMPILE="$(TARGET_CROSS)" \
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CROSS="$(TARGET_CROSS)" PREFIX="$(TARGET_DIR)" \
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ARCH=$(KERNEL_ARCH) \
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EXTRA_CFLAGS="$(BUSYBOX_CFLAGS)" -C $(BUSYBOX_DIR)
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ARCH=$(KERNEL_ARCH) -C $(BUSYBOX_DIR)
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$(TARGET_DIR)/bin/busybox: $(BUSYBOX_DIR)/busybox
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ifeq ($(BR2_PACKAGE_BUSYBOX_FULLINSTALL),y)
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$(MAKE) CC=$(TARGET_CC) CROSS_COMPILE="$(TARGET_CROSS)" \
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CROSS="$(TARGET_CROSS)" PREFIX="$(TARGET_DIR)" \
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ARCH=$(KERNEL_ARCH) \
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EXTRA_CFLAGS="$(BUSYBOX_CFLAGS)" -C $(BUSYBOX_DIR) install
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ARCH=$(KERNEL_ARCH) -C $(BUSYBOX_DIR) install
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else
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install -D -m 0755 $(BUSYBOX_DIR)/busybox $(TARGET_DIR)/bin/busybox
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endif
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@ -1,7 +1,13 @@
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#
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# This file implements the support for external toolchains, i.e
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# toolchains that have not been produced by Buildroot itself and that
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# are already available on the system on which Buildroot runs.
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# are already available on the system on which Buildroot runs. So far,
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# we have 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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# * ARM toolchains made available by Codesourcery
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#
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# The basic principle is the following
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#
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@ -34,38 +40,39 @@
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# directory to the target directory. Also optionaly strips the
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# library.
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#
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# $1: sysroot directory
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# $1: arch specific sysroot directory
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# $2: library name
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# $3: destination directory
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# $4: strip (y|n), default is to strip
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#
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copy_toolchain_lib_root = \
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SYSROOT_DIR="$(strip $1)"; \
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ARCH_SYSROOT_DIR="$(strip $1)"; \
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LIB="$(strip $2)"; \
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DST="$(strip $3)"; \
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STRIP="$(strip $4)"; \
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\
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LIB_DIR="$${SYSROOT_DIR}/lib" ; \
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for FILE in `find $${LIB_DIR} -maxdepth 1 -name "$${LIB}.*"`; do \
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LIBS=`(cd $${ARCH_SYSROOT_DIR}; find . -path "./lib/$${LIB}.*" -o -path "./usr/lib/$${LIB}.*")` ; \
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for FILE in $${LIBS} ; do \
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LIB=`basename $${FILE}`; \
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LIBDIR=`dirname $${FILE}` ; \
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while test \! -z "$${LIB}"; do \
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rm -fr $(TARGET_DIR)$${DST}/$${LIB}; \
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mkdir -p $(TARGET_DIR)$${DST}; \
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if test -h $${LIB_DIR}/$${LIB}; then \
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cp -d $${LIB_DIR}/$${LIB} $(TARGET_DIR)$${DST}/; \
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elif test -f $${LIB_DIR}/$${LIB}; then \
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$(INSTALL) -D -m0755 $${LIB_DIR}/$${LIB} $(TARGET_DIR)$${DST}/$${LIB}; \
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FULLPATH="$${ARCH_SYSROOT_DIR}/$${LIBDIR}/$${LIB}" ; \
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rm -fr $(TARGET_DIR)/$${LIBDIR}/$${LIB}; \
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mkdir -p $(TARGET_DIR)/$${LIBDIR}; \
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if test -h $${FULLPATH} ; then \
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cp -d $${FULLPATH} $(TARGET_DIR)/$${LIBDIR}/; \
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elif test -f $${FULLPATH}; then \
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$(INSTALL) -D -m0755 $${FULLPATH} $(TARGET_DIR)/$${LIBDIR}/$${LIB}; \
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case "$${STRIP}" in \
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(0 | n | no) \
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;; \
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(*) \
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$(TARGET_CROSS)strip "$(TARGET_DIR)$${DST}/$${LIB}"; \
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$(TARGET_CROSS)strip "$(TARGET_DIR)/$${LIBDIR}/$${LIB}"; \
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;; \
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esac; \
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else \
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exit -1; \
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fi; \
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LIB="`readlink $${LIB_DIR}/$${LIB}`"; \
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LIB="`readlink $${FULLPATH}`"; \
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done; \
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done; \
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\
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@ -73,13 +80,54 @@ copy_toolchain_lib_root = \
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#
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# Copy the full external toolchain sysroot directory to the staging
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# dir
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# dir. The operation of this function is rendered a little bit
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# complicated by the support for multilib toolchains.
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#
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# $1: sysroot directory
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# We start by copying etc, lib, sbin and usr from the sysroot of the
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# selected architecture variant (as pointed by ARCH_SYSROOT_DIR). This
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# allows to import into the staging directory the C library and
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# companion libraries for the correct architecture variant. We
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# explictly only copy etc, lib, sbin and usr since other directories
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# might exist for other architecture variants (on Codesourcery
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# toolchain, the sysroot for the default architecture variant contains
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# the armv4t and thumb2 subdirectories, which are the sysroot for the
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# corresponding architecture variants), and we don't want to import
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# them.
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#
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# Then, if the selected architecture variant is not the default one
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# (i.e, if SYSROOT_DIR != ARCH_SYSROOT_DIR), then we :
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#
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# * Import the header files from the default architecture
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# variant. Header files are typically shared between the sysroots
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# for the different architecture variants. If we use the
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# non-default one, header files were not copied by the previous
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# step, so we copy them here from the sysroot of the default
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# architecture variant.
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#
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# * Create a symbolic link that matches the name of the subdirectory
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# for the architecture variant in the original sysroot. This is
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# required as the compiler will by default look in
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# sysroot_dir/arch_variant/ for libraries and headers, when the
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# non-default architecture variant is used. Without this, the
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# compiler fails to find libraries and headers.
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#
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# $1: main sysroot directory of the toolchain
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# $2: arch specific sysroot directory of the toolchain
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# $3: arch specific subdirectory in the sysroot
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#
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copy_toolchain_sysroot = \
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SYSROOT_DIR="$(strip $1)"; \
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cp -a $${SYSROOT_DIR}/* $(STAGING_DIR)/ ; \
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ARCH_SYSROOT_DIR="$(strip $2)"; \
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ARCH_SUBDIR="$(strip $3)"; \
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for i in etc lib sbin usr ; do \
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cp -a $${ARCH_SYSROOT_DIR}/$$i $(STAGING_DIR)/ ; \
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done ; \
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if [ `readlink -f $${SYSROOT_DIR}` != `readlink -f $${ARCH_SYSROOT_DIR}` ] ; then \
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if [ ! -d $${ARCH_SYSROOT_DIR}/usr/include ] ; then \
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cp -a $${SYSROOT_DIR}/usr/include $(STAGING_DIR)/usr ; \
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fi ; \
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ln -s . $(STAGING_DIR)/$(ARCH_SUBDIR) ; \
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fi ; \
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find $(STAGING_DIR) -type d | xargs chmod 755
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#
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@ -205,7 +253,30 @@ ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
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EXTERNAL_LIBS+=libstdc++.so
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endif
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# SYSROOT_DIR selection. We first try the -print-sysroot option,
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# available in gcc 4.4.x and in some Codesourcery toolchains. If this
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# option is not available, we fallback to the value of --with-sysroot
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# as visible in CROSS-gcc -v. We don't pass the -march= option to gcc
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# as we want the "main" sysroot, which contains all variants of the C
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# library in the case of multilib toolchains.
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SYSROOT_DIR=$(shell $(TARGET_CC) -print-sysroot 2>/dev/null)
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ifeq ($(SYSROOT_DIR),)
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SYSROOT_DIR=$(shell readlink -f $$(LANG=C $(TARGET_CC) -print-file-name=libc.a |sed -r -e 's:usr/lib/libc\.a::;'))
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endif
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# Now, find if the toolchain specifies a sub-directory for the
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# specific architecture variant we're interested in. This is the case
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# with multilib toolchain, when the selected architecture variant is
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# not the default one. To do so, we ask the compiler by passing the
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# appropriate -march= flags. ARCH_SUBDIR will contain the
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# subdirectory, in the main SYSROOT_DIR, that corresponds to the
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# selected architecture variant. ARCH_SYSROOT_DIR will contain the
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# full path to this location.
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ifneq ($(CC_TARGET_ARCH_),)
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TARGET_CC_ARCH_CFLAGS+=-march=$(CC_TARGET_ARCH_)
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endif
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ARCH_SUBDIR=$(shell $(TARGET_CC) $(TARGET_CC_ARCH_CFLAGS) -print-multi-directory)
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ARCH_SYSROOT_DIR=$(SYSROOT_DIR)/$(ARCH_SUBDIR)
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$(STAMP_DIR)/ext-toolchain-installed:
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@echo "Checking external toolchain settings"
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@ -225,8 +296,8 @@ endif
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mkdir -p $(TARGET_DIR)/lib
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@echo "Copy external toolchain libraries to target..."
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$(Q)for libs in $(EXTERNAL_LIBS); do \
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$(call copy_toolchain_lib_root,$(SYSROOT_DIR),$$libs,/lib,$(BR2_TOOLCHAIN_EXTERNAL_STRIP)); \
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$(call copy_toolchain_lib_root,$(ARCH_SYSROOT_DIR),$$libs,$(BR2_TOOLCHAIN_EXTERNAL_STRIP)); \
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done
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@echo "Copy external toolchain sysroot to staging..."
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$(Q)$(call copy_toolchain_sysroot,$(SYSROOT_DIR))
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$(Q)$(call copy_toolchain_sysroot,$(SYSROOT_DIR),$(ARCH_SYSROOT_DIR),$(ARCH_SUBDIR))
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@touch $@
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