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-rw-r--r--toolchain/helpers.mk73
-rw-r--r--toolchain/toolchain-external/ext-tool.mk23
2 files changed, 69 insertions, 27 deletions
diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk
index bb1ea9040..649b91b03 100644
--- a/toolchain/helpers.mk
+++ b/toolchain/helpers.mk
@@ -20,11 +20,16 @@
#
# usr/$(TOOLCHAIN_EXTERNAL_PREFIX)/$${ARCH_LIB_DIR}
#
-# Finally, Linaro toolchains have the libraries in lib/<target-name>/,
-# so we need to search libraries in:
+# Linaro toolchains have most libraries in lib/<target-name>/, so we
+# need to search libraries in:
#
# $${ARCH_LIB_DIR}/$(TOOLCHAIN_EXTERNAL_PREFIX)
#
+# And recent Linaro toolchains have the GCC support libraries
+# (libstdc++, libgcc_s, etc.) into a separate directory, outside of
+# the sysroot, that we called the "SUPPORT_LIB_DIR", into which we
+# need to search as well.
+#
# Thanks to ARCH_LIB_DIR we also take into account toolchains that
# have the libraries in lib64 and usr/lib64.
#
@@ -33,35 +38,44 @@
# modification on the below logic.
#
# $1: arch specific sysroot directory
-# $2: library directory ('lib' or 'lib64') from which libraries must be copied
-# $3: library name
-# $4: destination directory of the libary, relative to $(TARGET_DIR)
+# $2: support libraries directory (can be empty)
+# $3: library directory ('lib' or 'lib64') from which libraries must be copied
+# $4: library name
+# $5: destination directory of the libary, relative to $(TARGET_DIR)
#
copy_toolchain_lib_root = \
ARCH_SYSROOT_DIR="$(strip $1)"; \
- ARCH_LIB_DIR="$(strip $2)" ; \
- LIB="$(strip $3)"; \
- DESTDIR="$(strip $4)" ; \
+ SUPPORT_LIB_DIR="$(strip $2)" ; \
+ ARCH_LIB_DIR="$(strip $3)" ; \
+ LIB="$(strip $4)"; \
+ DESTDIR="$(strip $5)" ; \
\
- LIBS=`(cd $${ARCH_SYSROOT_DIR}; \
- find -L $${ARCH_LIB_DIR} usr/$${ARCH_LIB_DIR} usr/$(TOOLCHAIN_EXTERNAL_PREFIX)/$${ARCH_LIB_DIR} $${ARCH_LIB_DIR}/$(TOOLCHAIN_EXTERNAL_PREFIX) \
- -maxdepth 1 -name "$${LIB}.*" 2>/dev/null \
- )` ; \
- for FILE in $${LIBS} ; do \
- LIB=`basename $${FILE}`; \
- LIBDIR=`dirname $${FILE}` ; \
- while test \! -z "$${LIB}"; do \
- FULLPATH="$${ARCH_SYSROOT_DIR}/$${LIBDIR}/$${LIB}" ; \
- rm -fr $(TARGET_DIR)/$${DESTDIR}/$${LIB}; \
+ for dir in \
+ $${ARCH_SYSROOT_DIR}/$${ARCH_LIB_DIR}/$(TOOLCHAIN_EXTERNAL_PREFIX) \
+ $${ARCH_SYSROOT_DIR}/usr/$(TOOLCHAIN_EXTERNAL_PREFIX)/$${ARCH_LIB_DIR} \
+ $${ARCH_SYSROOT_DIR}/$${ARCH_LIB_DIR} \
+ $${ARCH_SYSROOT_DIR}/usr/$${ARCH_LIB_DIR} \
+ $${SUPPORT_LIB_DIR} ; do \
+ LIBSPATH=`find $${dir} -maxdepth 1 -name "$${LIB}.*" 2>/dev/null` ; \
+ if test -n "$${LIBSPATH}" ; then \
+ break ; \
+ fi \
+ done ; \
+ for LIBPATH in $${LIBSPATH} ; do \
+ LIBNAME=`basename $${LIBPATH}`; \
+ LIBDIR=`dirname $${LIBPATH}` ; \
+ while test \! -z "$${LIBNAME}" ; do \
+ LIBPATH=$${LIBDIR}/$${LIBNAME} ; \
+ rm -fr $(TARGET_DIR)/$${DESTDIR}/$${LIBNAME}; \
mkdir -p $(TARGET_DIR)/$${DESTDIR}; \
- if test -h $${FULLPATH} ; then \
- cp -d $${FULLPATH} $(TARGET_DIR)/$${DESTDIR}/; \
- elif test -f $${FULLPATH}; then \
- $(INSTALL) -D -m0755 $${FULLPATH} $(TARGET_DIR)/$${DESTDIR}/$${LIB}; \
+ if test -h $${LIBPATH} ; then \
+ cp -d $${LIBPATH} $(TARGET_DIR)/$${DESTDIR}/; \
+ elif test -f $${LIBPATH}; then \
+ $(INSTALL) -D -m0755 $${LIBPATH} $(TARGET_DIR)/$${DESTDIR}/$${LIBNAME}; \
else \
exit -1; \
fi; \
- LIB="`readlink $${FULLPATH}`"; \
+ LIBNAME="`readlink $${LIBPATH}`"; \
done; \
done; \
\
@@ -100,6 +114,11 @@ copy_toolchain_lib_root = \
# non-default architecture variant is used. Without this, the
# compiler fails to find libraries and headers.
#
+# Some toolchains (i.e Linaro binary toolchains) store support
+# libraries (libstdc++, libgcc_s) outside of the sysroot, so we simply
+# copy all the libraries from the "support lib directory" into our
+# sysroot.
+#
# Note that the 'locale' directories are not copied. They are huge
# (400+MB) in CodeSourcery toolchains, and they are not really useful.
#
@@ -107,12 +126,15 @@ copy_toolchain_lib_root = \
# $2: arch specific sysroot directory of the toolchain
# $3: arch specific subdirectory in the sysroot
# $4: directory of libraries ('lib' or 'lib64')
-#
+# $5: support lib directories (for toolchains storing libgcc_s,
+# libstdc++ and other gcc support libraries outside of the
+# sysroot)
copy_toolchain_sysroot = \
SYSROOT_DIR="$(strip $1)"; \
ARCH_SYSROOT_DIR="$(strip $2)"; \
ARCH_SUBDIR="$(strip $3)"; \
ARCH_LIB_DIR="$(strip $4)" ; \
+ SUPPORT_LIB_DIR="$(strip $5)" ; \
for i in etc $${ARCH_LIB_DIR} sbin usr ; do \
if [ -d $${ARCH_SYSROOT_DIR}/$$i ] ; then \
rsync -au --chmod=Du+w --exclude 'usr/lib/locale' $${ARCH_SYSROOT_DIR}/$$i $(STAGING_DIR)/ ; \
@@ -131,6 +153,9 @@ copy_toolchain_sysroot = \
ln -s $${relpath} $(STAGING_DIR)/$${ARCH_SUBDIR} ; \
echo "Symlinking $(STAGING_DIR)/$${ARCH_SUBDIR} -> $${relpath}" ; \
fi ; \
+ if test -n "$${SUPPORT_LIB_DIR}" ; then \
+ cp -a $${SUPPORT_LIB_DIR}/* $(STAGING_DIR)/lib/ ; \
+ fi ; \
find $(STAGING_DIR) -type d | xargs chmod 755
#
diff --git a/toolchain/toolchain-external/ext-tool.mk b/toolchain/toolchain-external/ext-tool.mk
index a45603a43..2a01d6852 100644
--- a/toolchain/toolchain-external/ext-tool.mk
+++ b/toolchain/toolchain-external/ext-tool.mk
@@ -359,6 +359,17 @@ $(STAMP_DIR)/ext-toolchain-checked: $(TOOLCHAIN_EXTERNAL_DEPENDENCIES)
# ARCH_SUBDIR: the relative location of the sysroot of the selected
# multilib variant compared to the main sysroot.
# Ex: mips16/soft-float/el
+#
+# SUPPORT_LIB_DIR: some toolchains, such as recent Linaro toolchains,
+# store GCC support libraries (libstdc++,
+# libgcc_s, etc.) outside of the sysroot. In
+# this case, SUPPORT_LIB_DIR is set to a
+# non-empty value, and points to the directory
+# where these support libraries are
+# available. Those libraries will be copied to
+# our sysroot, and the directory will also be
+# considered when searching libraries for copy
+# to the target filesystem.
$(STAMP_DIR)/ext-toolchain-installed: $(STAMP_DIR)/ext-toolchain-checked
$(Q)LIBC_A_LOCATION=`readlink -f $$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) -print-file-name=libc.a)` ; \
@@ -370,19 +381,25 @@ $(STAMP_DIR)/ext-toolchain-installed: $(STAMP_DIR)/ext-toolchain-checked
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(64)?/(.*/)?libc\.a::'` ; \
ARCH_LIB_DIR=`echo $${ARCH_LIBC_A_LOCATION} | sed -r -e 's:.*/usr/(lib(64)?)/(.*/)?libc.a:\1:'` ; \
+ if test `find $${ARCH_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
+ LIBSTDCPP_A_LOCATION=`readlink -f $$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a)` ; \
+ SUPPORT_LIB_DIR=`echo $${LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
+ else \
+ SUPPORT_LIB_DIR="" ; \
+ fi ; \
ARCH_SUBDIR=`echo $${ARCH_SYSROOT_DIR} | sed -r -e "s:^$${SYSROOT_DIR}(.*)/$$:\1:"` ; \
mkdir -p $(TARGET_DIR)/lib ; \
if test -z "$(BR2_PREFER_STATIC_LIB)" ; then \
echo "Copy external toolchain libraries to target..." ; \
for libs in $(LIB_EXTERNAL_LIBS); do \
- $(call copy_toolchain_lib_root,$${ARCH_SYSROOT_DIR},$${ARCH_LIB_DIR},$$libs,/lib); \
+ $(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,$${ARCH_SYSROOT_DIR},$${ARCH_LIB_DIR},$$libs,/usr/lib); \
+ $(call copy_toolchain_lib_root,$${ARCH_SYSROOT_DIR},$${SUPPORT_LIB_DIR},$${ARCH_LIB_DIR},$$libs,/usr/lib); \
done ; \
fi ; \
echo "Copy external toolchain sysroot to staging..." ; \
- $(call copy_toolchain_sysroot,$${SYSROOT_DIR},$${ARCH_SYSROOT_DIR},$${ARCH_SUBDIR},$${ARCH_LIB_DIR}) ; \
+ $(call copy_toolchain_sysroot,$${SYSROOT_DIR},$${ARCH_SYSROOT_DIR},$${ARCH_SUBDIR},$${ARCH_LIB_DIR},$${SUPPORT_LIB_DIR}) ; \
if [ -L $${ARCH_SYSROOT_DIR}/lib64 ] ; then \
$(call create_lib64_symlinks) ; \
fi ; \