245 lines
8.8 KiB
Makefile
245 lines
8.8 KiB
Makefile
|
# This Makefile fragment declares helper functions, usefull to handle
|
||
|
|
# non- buildroot-built toolchains, eg. purely external toolchains or
|
||
|
|
# toolchains (internally) built using crosstool-NG.
|
||
|
|
|
||
|
|
#
|
||
|
|
# Copy a toolchain library and its symbolic links from the sysroot
|
||
|
|
# directory to the target directory. Also optionaly strips the
|
||
|
|
# library.
|
||
|
|
#
|
||
|
|
# Most toolchains have their libraries either in /lib or /usr/lib
|
||
|
|
# relative to their ARCH_SYSROOT_DIR. Buildroot toolchains, however,
|
||
|
|
# have basic libraries in /lib, and libstdc++/libgcc_s in
|
||
|
|
# /usr/<target-name>/lib(64).
|
||
|
|
#
|
||
|
|
# $1: arch specific sysroot directory
|
||
|
|
# $2: library name
|
||
|
|
# $3: destination directory of the libary, relative to $(TARGET_DIR)
|
||
|
|
# $4: strip (y|n), default is to strip
|
||
|
|
#
|
||
|
|
copy_toolchain_lib_root = \
|
||
|
|
ARCH_SYSROOT_DIR="$(strip $1)"; \
|
||
|
|
LIB="$(strip $2)"; \
|
||
|
|
DESTDIR="$(strip $3)" ; \
|
||
|
|
STRIP="$(strip $4)"; \
|
||
|
|
\
|
||
|
|
LIBS=`(cd $${ARCH_SYSROOT_DIR}; \
|
||
|
|
find -L . -path "./lib/$${LIB}.*" -o \
|
||
|
|
-path "./usr/lib/$${LIB}.*" -o \
|
||
|
|
-path "./usr/$(TOOLCHAIN_EXTERNAL_PREFIX)/lib*/$${LIB}.*" \
|
||
|
|
)` ; \
|
||
|
|
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}/$${LIB}; \
|
||
|
|
mkdir -p $(TARGET_DIR)/$${DESTDIR}; \
|
||
|
|
if test -h $${FULLPATH} ; then \
|
||
|
|
cp -d $${FULLPATH} $(TARGET_DIR)/$${DESTDIR}/; \
|
||
|
|
elif test -f $${FULLPATH}; then \
|
||
|
|
$(INSTALL) -D -m0755 $${FULLPATH} $(TARGET_DIR)/$${DESTDIR}/$${LIB}; \
|
||
|
|
case "$${STRIP}" in \
|
||
|
|
(0 | n | no) \
|
||
|
|
;; \
|
||
|
|
(*) \
|
||
|
|
$(TARGET_CROSS)strip "$(TARGET_DIR)/$${DESTDIR}/$${LIB}"; \
|
||
|
|
;; \
|
||
|
|
esac; \
|
||
|
|
else \
|
||
|
|
exit -1; \
|
||
|
|
fi; \
|
||
|
|
LIB="`readlink $${FULLPATH}`"; \
|
||
|
|
done; \
|
||
|
|
done; \
|
||
|
|
\
|
||
|
|
echo -n
|
||
|
|
|
||
|
|
#
|
||
|
|
# Copy the full external toolchain sysroot directory to the staging
|
||
|
|
# dir. The operation of this function is rendered a little bit
|
||
|
|
# complicated by the support for multilib toolchains.
|
||
|
|
#
|
||
|
|
# We start by copying etc, lib, sbin and usr from the sysroot of the
|
||
|
|
# selected architecture variant (as pointed by ARCH_SYSROOT_DIR). This
|
||
|
|
# allows to import into the staging directory the C library and
|
||
|
|
# companion libraries for the correct architecture variant. We
|
||
|
|
# explictly only copy etc, lib, sbin and usr since other directories
|
||
|
|
# might exist for other architecture variants (on Codesourcery
|
||
|
|
# toolchain, the sysroot for the default architecture variant contains
|
||
|
|
# the armv4t and thumb2 subdirectories, which are the sysroot for the
|
||
|
|
# corresponding architecture variants), and we don't want to import
|
||
|
|
# them.
|
||
|
|
#
|
||
|
|
# Then, if the selected architecture variant is not the default one
|
||
|
|
# (i.e, if SYSROOT_DIR != ARCH_SYSROOT_DIR), then we :
|
||
|
|
#
|
||
|
|
# * Import the header files from the default architecture
|
||
|
|
# variant. Header files are typically shared between the sysroots
|
||
|
|
# for the different architecture variants. If we use the
|
||
|
|
# non-default one, header files were not copied by the previous
|
||
|
|
# step, so we copy them here from the sysroot of the default
|
||
|
|
# architecture variant.
|
||
|
|
#
|
||
|
|
# * Create a symbolic link that matches the name of the subdirectory
|
||
|
|
# for the architecture variant in the original sysroot. This is
|
||
|
|
# required as the compiler will by default look in
|
||
|
|
# sysroot_dir/arch_variant/ for libraries and headers, when the
|
||
|
|
# non-default architecture variant is used. Without this, the
|
||
|
|
# compiler fails to find libraries and headers.
|
||
|
|
#
|
||
|
|
# $1: main sysroot directory of the toolchain
|
||
|
|
# $2: arch specific sysroot directory of the toolchain
|
||
|
|
# $3: arch specific subdirectory in the sysroot
|
||
|
|
#
|
||
|
|
copy_toolchain_sysroot = \
|
||
|
|
SYSROOT_DIR="$(strip $1)"; \
|
||
|
|
ARCH_SYSROOT_DIR="$(strip $2)"; \
|
||
|
|
ARCH_SUBDIR="$(strip $3)"; \
|
||
|
|
for i in etc lib sbin usr ; do \
|
||
|
|
if [ -d $${ARCH_SYSROOT_DIR}/$$i ] ; then \
|
||
|
|
cp -a $${ARCH_SYSROOT_DIR}/$$i $(STAGING_DIR)/ ; \
|
||
|
|
fi ; \
|
||
|
|
done ; \
|
||
|
|
if [ `readlink -f $${SYSROOT_DIR}` != `readlink -f $${ARCH_SYSROOT_DIR}` ] ; then \
|
||
|
|
if [ ! -d $${ARCH_SYSROOT_DIR}/usr/include ] ; then \
|
||
|
|
cp -a $${SYSROOT_DIR}/usr/include $(STAGING_DIR)/usr ; \
|
||
|
|
fi ; \
|
||
|
|
ln -s . $(STAGING_DIR)/$(ARCH_SUBDIR) ; \
|
||
|
|
fi ; \
|
||
|
|
find $(STAGING_DIR) -type d | xargs chmod 755
|
||
|
|
|
||
|
|
#
|
||
|
|
# Create lib64 -> lib and usr/lib64 -> usr/lib symbolic links in the
|
||
|
|
# target and staging directories. This is needed for some 64 bits
|
||
|
|
# toolchains such as the Crosstool-NG toolchains, for which the path
|
||
|
|
# to the dynamic loader and other libraries is /lib64, but the
|
||
|
|
# libraries are stored in /lib.
|
||
|
|
#
|
||
|
|
create_lib64_symlinks = \
|
||
|
|
(cd $(TARGET_DIR) ; ln -s lib lib64) ; \
|
||
|
|
(cd $(TARGET_DIR)/usr ; ln -s lib lib64) ; \
|
||
|
|
(cd $(STAGING_DIR) ; ln -s lib lib64) ; \
|
||
|
|
(cd $(STAGING_DIR)/usr ; ln -s lib lib64)
|
||
|
|
|
||
|
|
#
|
||
|
|
# Check the availability of a particular glibc feature. We assume that
|
||
|
|
# all Buildroot toolchain options are supported by glibc, so we just
|
||
|
|
# check that they are enabled.
|
||
|
|
#
|
||
|
|
# $1: Buildroot option name
|
||
|
|
# $2: feature description
|
||
|
|
#
|
||
|
|
check_glibc_feature = \
|
||
|
|
if [ x$($(1)) != x"y" ] ; then \
|
||
|
|
echo "$(2) available in C library, please enable $(1)" ; \
|
||
|
|
exit 1 ; \
|
||
|
|
fi
|
||
|
|
|
||
|
|
#
|
||
|
|
# Check the correctness of a glibc external toolchain configuration.
|
||
|
|
# 1. Check that the C library selected in Buildroot matches the one
|
||
|
|
# of the external toolchain
|
||
|
|
# 2. Check that all the C library-related features are enabled in the
|
||
|
|
# config, since glibc always supports all of them
|
||
|
|
#
|
||
|
|
# $1: sysroot directory
|
||
|
|
#
|
||
|
|
check_glibc = \
|
||
|
|
SYSROOT_DIR="$(strip $1)"; \
|
||
|
|
if ! test -f $${SYSROOT_DIR}/lib/ld-linux*.so.* -o -f $${SYSROOT_DIR}/lib/ld.so.* ; then \
|
||
|
|
echo "Incorrect selection of the C library"; \
|
||
|
|
exit -1; \
|
||
|
|
fi; \
|
||
|
|
$(call check_glibc_feature,BR2_LARGEFILE,Large file support) ;\
|
||
|
|
$(call check_glibc_feature,BR2_INET_IPV6,IPv6 support) ;\
|
||
|
|
$(call check_glibc_feature,BR2_INET_RPC,RPC support) ;\
|
||
|
|
$(call check_glibc_feature,BR2_ENABLE_LOCALE,Locale support) ;\
|
||
|
|
$(call check_glibc_feature,BR2_USE_WCHAR,Wide char support) ;\
|
||
|
|
$(call check_glibc_feature,BR2_PROGRAM_INVOCATION,Program invocation support)
|
||
|
|
|
||
|
|
#
|
||
|
|
# Check the conformity of Buildroot configuration with regard to the
|
||
|
|
# uClibc configuration of the external toolchain, for a particular
|
||
|
|
# feature.
|
||
|
|
#
|
||
|
|
# $1: uClibc macro name
|
||
|
|
# $2: Buildroot option name
|
||
|
|
# $3: uClibc config file
|
||
|
|
# $4: feature description
|
||
|
|
#
|
||
|
|
check_uclibc_feature = \
|
||
|
|
IS_IN_LIBC=`grep -q "\#define $(1) 1" $(3) && echo y` ; \
|
||
|
|
if [ x$($(2)) != x"y" -a x$${IS_IN_LIBC} == x"y" ] ; then \
|
||
|
|
echo "$(4) available in C library, please enable $(2)" ; \
|
||
|
|
exit 1 ; \
|
||
|
|
fi ; \
|
||
|
|
if [ x$($(2)) == x"y" -a x$${IS_IN_LIBC} != x"y" ] ; then \
|
||
|
|
echo "$(4) not available in C library, please disable $(2)" ; \
|
||
|
|
exit 1 ; \
|
||
|
|
fi
|
||
|
|
|
||
|
|
#
|
||
|
|
# Check the correctness of a uclibc external toolchain configuration
|
||
|
|
# 1. Check that the C library selected in Buildroot matches the one
|
||
|
|
# of the external toolchain
|
||
|
|
# 2. Check that the features enabled in the Buildroot configuration
|
||
|
|
# match the features available in the uClibc of the external
|
||
|
|
# toolchain
|
||
|
|
#
|
||
|
|
# $1: sysroot directory
|
||
|
|
#
|
||
|
|
check_uclibc = \
|
||
|
|
SYSROOT_DIR="$(strip $1)"; \
|
||
|
|
if ! test -f $${SYSROOT_DIR}/lib/ld*-uClibc.so.* ; then \
|
||
|
|
echo "Incorrect selection of the C library"; \
|
||
|
|
exit -1; \
|
||
|
|
fi; \
|
||
|
|
UCLIBC_CONFIG_FILE=$${SYSROOT_DIR}/usr/include/bits/uClibc_config.h ; \
|
||
|
|
$(call check_uclibc_feature,__UCLIBC_HAS_LFS__,BR2_LARGEFILE,$${UCLIBC_CONFIG_FILE},Large file support) ;\
|
||
|
|
$(call check_uclibc_feature,__UCLIBC_HAS_IPV6__,BR2_INET_IPV6,$${UCLIBC_CONFIG_FILE},IPv6 support) ;\
|
||
|
|
$(call check_uclibc_feature,__UCLIBC_HAS_RPC__,BR2_INET_RPC,$${UCLIBC_CONFIG_FILE},RPC support) ;\
|
||
|
|
$(call check_uclibc_feature,__UCLIBC_HAS_LOCALE__,BR2_ENABLE_LOCALE,$${UCLIBC_CONFIG_FILE},Locale support) ;\
|
||
|
|
$(call check_uclibc_feature,__UCLIBC_HAS_WCHAR__,BR2_USE_WCHAR,$${UCLIBC_CONFIG_FILE},Wide char support) ;\
|
||
|
|
$(call check_uclibc_feature,__UCLIBC_HAS_PROGRAM_INVOCATION_NAME__,BR2_PROGRAM_INVOCATION,$${UCLIBC_CONFIG_FILE},Program invocation support) ;\
|
||
|
|
|
||
|
|
#
|
||
|
|
# Check that the Buildroot configuration of the ABI matches the
|
||
|
|
# configuration of the external toolchain.
|
||
|
|
#
|
||
|
|
check_arm_abi = \
|
||
|
|
EXT_TOOLCHAIN_TARGET=$(shell LANG=C $(TARGET_CC) -v 2>&1 | grep ^Target | cut -f2 -d ' ') ; \
|
||
|
|
if echo $${EXT_TOOLCHAIN_TARGET} | grep -q 'eabi$$' ; then \
|
||
|
|
EXT_TOOLCHAIN_ABI="eabi" ; \
|
||
|
|
else \
|
||
|
|
EXT_TOOLCHAIN_ABI="oabi" ; \
|
||
|
|
fi ; \
|
||
|
|
if [ x$(BR2_ARM_OABI) == x"y" -a $${EXT_TOOLCHAIN_ABI} == "eabi" ] ; then \
|
||
|
|
echo "Incorrect ABI setting" ; \
|
||
|
|
exit 1 ; \
|
||
|
|
fi ; \
|
||
|
|
if [ x$(BR2_ARM_EABI) == x"y" -a $${EXT_TOOLCHAIN_ABI} == "oabi" ] ; then \
|
||
|
|
echo "Incorrect ABI setting" ; \
|
||
|
|
exit 1 ; \
|
||
|
|
fi ; \
|
||
|
|
|
||
|
|
#
|
||
|
|
# Check that the external toolchain supports C++
|
||
|
|
#
|
||
|
|
check_cplusplus = \
|
||
|
|
$(TARGET_CXX) -v > /dev/null 2>&1 ; \
|
||
|
|
if test $$? -ne 0 ; then \
|
||
|
|
echo "BR2_INSTALL_LIBSTDCPP is selected but C++ support not available in external toolchain" ; \
|
||
|
|
exit 1 ; \
|
||
|
|
fi ; \
|
||
|
|
|
||
|
|
#
|
||
|
|
# Check that the cross-compiler given in the configuration exists
|
||
|
|
#
|
||
|
|
check_cross_compiler_exists = \
|
||
|
|
$(TARGET_CC) -v > /dev/null 2>&1 ; \
|
||
|
|
if test $$? -ne 0 ; then \
|
||
|
|
echo "Cannot execute cross-compiler '$(TARGET_CC)'" ; \
|
||
|
|
exit 1 ; \
|
||
|
|
fi ; \
|