643aa232f0
The current Buildroot works just well with sysrootable glibc toolchains, using the external toolchain feature. The only thing that needs to be customized is the set of libraries that must be compiled to the target. The following patch takes a simple approach to making it easier for users to use glibc toolchains. It just adds a uClibc/glibc choice in the external toolchain menu. Then, depending on that selection, the configuration system will choose a sane default value for the library files list. The other advantage of having a uClibc/glibc choice is that in the future, we'll be able to add checks verifying that the external toolchain configuration matches the features selected in Buildroot (in terms of IPv6, RPC, locales or large file support). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
71 lines
2.2 KiB
Makefile
71 lines
2.2 KiB
Makefile
#
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# copy_toolchain_lib_root
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#
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# $1: source
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# $2: destination
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# $3: strip (y|n) default is to strip
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#
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copy_toolchain_lib_root = \
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LIB="$(strip $1)"; \
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DST="$(strip $2)"; \
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STRIP="$(strip $3)"; \
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\
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LIB_DIR=`$(TARGET_CC) -print-file-name=$${LIB} | sed -e "s,$${LIB}\$$,,"`; \
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\
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if test -z "$${LIB_DIR}"; then \
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echo "copy_toolchain_lib_root: lib=$${LIB} not found"; \
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exit -1; \
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fi; \
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\
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LIB="$(strip $1)"; \
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for FILE in `find $${LIB_DIR} -maxdepth 1 -type l -name "$${LIB}*"`; do \
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LIB=`basename $${FILE}`; \
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while test \! -z "$${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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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}/$${LIB}"; \
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;; \
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esac; \
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else \
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exit -1; \
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fi; \
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LIB="`readlink $${LIB_DIR}/$${LIB}`"; \
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done; \
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done; \
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\
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echo -n
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copy_toolchain_sysroot = \
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SYSROOT_DIR=`$(TARGET_CC) -v 2>&1 | grep ^Configured | tr " " "\n" | grep -- "--with-sysroot" | cut -f2 -d=`; \
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if [ -n "$${SYSROOT_DIR}" ]; then cp -a $${SYSROOT_DIR}/* $(STAGING_DIR)/ ; \
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find $(STAGING_DIR) -type d | xargs chmod 755; fi
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ifeq ($(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y)
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EXTERNAL_LIBC=libc.so.0
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EXTERNAL_LIBS=ld-uClibc.so.0 libcrypt.so.0 libdl.so.0 libgcc_s.so libm.so.0 libnsl.so.0 libpthread.so.0 libresolv.so.0 librt.so.0 libutil.so.0
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else
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EXTERNAL_LIBC=libc.so.6
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EXTERNAL_LIBS=ld-linux.so.3 libcrypt.so.1 libdl.so.2 libgcc_s.so.1 libm.so.6 libnsl.so.1 libpthread.so.0 libresolv.so.2 librt.so.1 libutil.so.1 libnss_files.so.2
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endif
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uclibc: dependencies $(TARGET_DIR)/lib/$(EXTERNAL_LIBC)
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$(TARGET_DIR)/lib/$(EXTERNAL_LIBC):
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mkdir -p $(TARGET_DIR)/lib
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@echo "Copy external toolchain libraries to target..."
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@$(call copy_toolchain_lib_root, $(EXTERNAL_LIBC), /lib, $(BR2_TOOLCHAIN_EXTERNAL_STRIP))
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@for libs in $(EXTERNAL_LIBS); do \
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$(call copy_toolchain_lib_root, $$libs, /lib, $(BR2_TOOLCHAIN_EXTERNAL_STRIP)); \
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done
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@echo "Copy external toolchain sysroot to staging..."
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@$(call copy_toolchain_sysroot)
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