diff options
Diffstat (limited to 'toolchain/external-toolchain')
| -rw-r--r-- | toolchain/external-toolchain/ext-tool.mk | 115 |
1 files changed, 81 insertions, 34 deletions
diff --git a/toolchain/external-toolchain/ext-tool.mk b/toolchain/external-toolchain/ext-tool.mk index 72bb567ca..7a0132ab1 100644 --- a/toolchain/external-toolchain/ext-tool.mk +++ b/toolchain/external-toolchain/ext-tool.mk @@ -1,19 +1,20 @@ # -# copy_toolchain_lib_root +# Copy a toolchain library and its symbolic links from the sysroot +# directory to the target directory. Also optionaly strips the +# library. # -# $1: source -# $2: destination -# $3: strip (y|n) default is to strip +# $1: sysroot directory +# $2: library name +# $3: destination directory +# $4: strip (y|n), default is to strip # copy_toolchain_lib_root = \ - LIB="$(strip $1)"; \ - DST="$(strip $2)"; \ - STRIP="$(strip $3)"; \ + SYSROOT_DIR="$(strip $1)"; \ + LIB="$(strip $2)"; \ + DST="$(strip $3)"; \ + STRIP="$(strip $4)"; \ \ - SYSROOT_DIR=`$(TARGET_CC) -v 2>&1 | grep ^Configured | tr " " "\n" | grep -- "--with-sysroot" | cut -f2 -d=`; \ LIB_DIR="$${SYSROOT_DIR}/lib" ; \ - \ - LIB="$(strip $1)"; \ for FILE in `find $${LIB_DIR} -maxdepth 1 -type l -name "$${LIB}*"`; do \ LIB=`basename $${FILE}`; \ while test \! -z "$${LIB}"; do \ @@ -39,29 +40,42 @@ copy_toolchain_lib_root = \ \ echo -n +# +# Copy the full external toolchain sysroot directory to the staging +# dir +# +# $1: sysroot directory +# copy_toolchain_sysroot = \ - SYSROOT_DIR=`$(TARGET_CC) -v 2>&1 | grep ^Configured | tr " " "\n" | grep -- "--with-sysroot" | cut -f2 -d=`; \ - if [ -n "$${SYSROOT_DIR}" ]; then cp -a $${SYSROOT_DIR}/* $(STAGING_DIR)/ ; \ - find $(STAGING_DIR) -type d | xargs chmod 755; fi + SYSROOT_DIR="$(strip $1)"; \ + cp -a $${SYSROOT_DIR}/* $(STAGING_DIR)/ ; \ + find $(STAGING_DIR) -type d | xargs chmod 755 -EXTERNAL_LIBS=libc.so libcrypt.so libdl.so libgcc_s.so libm.so libnsl.so libpthread.so libresolv.so librt.so libutil.so -ifeq ($(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y) -EXTERNAL_LIBS+=ld-uClibc.so -else -EXTERNAL_LIBS+=ld-linux.so libnss_files.so -endif - -# 1: Buildroot option name -# 2: message +# +# 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 +# +# $1: sysroot directory +# check_glibc = \ - SYSROOT_DIR=`$(TARGET_CC) -v 2>&1 | grep ^Configured | tr " " "\n" | grep -- "--with-sysroot" | cut -f2 -d=`; \ - echo $${SYSROOT_DIR}/lib/ld-linux.so.* ; \ + SYSROOT_DIR="$(strip $1)"; \ if ! test -f $${SYSROOT_DIR}/lib/ld-linux.so.* ; then \ echo "Incorrect selection of the C library"; \ exit -1; \ @@ -72,10 +86,16 @@ check_glibc = \ $(call check_glibc_feature,BR2_ENABLE_LOCALE,Locale support) ;\ $(call check_glibc_feature,BR2_USE_WCHAR,Wide char support) -# 1: uClibc macro name -# 2: Buildroot option name -# 3: uClibc config file -# 4: message +# +# 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$${IS_IN_LIBC} == x"y" ] ; then \ @@ -87,8 +107,18 @@ check_uclibc_feature = \ exit 1 ; \ fi +# +# Check the correctness of a uclibc external toolchain configuration +# 1. Check that the C library selected in Buildroot matches the one +# of the external toolchain +# 2. Check that the features enabled in the Buildroot configuration +# match the features available in the uClibc of the external +# toolchain +# +# $1: sysroot directory +# check_uclibc = \ - SYSROOT_DIR=`$(TARGET_CC) -v 2>&1 | grep ^Configured | tr " " "\n" | grep -- "--with-sysroot" | cut -f2 -d=`; \ + SYSROOT_DIR="$(strip $1)"; \ if ! test -f $${SYSROOT_DIR}/lib/ld-uClibc.so.* ; then \ echo "Incorrect selection of the C library"; \ exit -1; \ @@ -100,8 +130,12 @@ check_uclibc = \ $(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) ;\ +# +# Check that the Buildroot configuration of the ABI matches the +# configuration of the external toolchain. +# check_arm_abi = \ - EXT_TOOLCHAIN_TARGET=`$(TARGET_CC) -v 2>&1 | grep ^Target | cut -f2 -d ' '` ; \ + EXT_TOOLCHAIN_TARGET=$(shell $(TARGET_CC) -v 2>&1 | grep ^Target | cut -f2 -d ' ') ; \ if echo $${EXT_TOOLCHAIN_TARGET} | grep -q 'eabi$$' ; then \ EXT_TOOLCHAIN_ABI="eabi" ; \ else \ @@ -118,21 +152,34 @@ check_arm_abi = \ uclibc: dependencies $(STAMP_DIR)/ext-toolchain-installed +EXTERNAL_LIBS=libc.so libcrypt.so libdl.so libgcc_s.so libm.so libnsl.so libpthread.so libresolv.so librt.so libutil.so +ifeq ($(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y) +EXTERNAL_LIBS+=ld-uClibc.so +else +EXTERNAL_LIBS+=ld-linux.so libnss_files.so +endif + +SYSROOT_DIR=$(shell $(TARGET_CC) -v 2>&1 | grep ^Configured | tr " " "\n" | grep -- "--with-sysroot" | cut -f2 -d=) + $(STAMP_DIR)/ext-toolchain-installed: @echo "Checking external toolchain settings" +ifeq ($(strip $(SYSROOT_DIR)),) + @echo "External toolchain doesn't support --sysroot. Cannot use." + exit 1 +endif ifeq ($(BR2_arm),y) @$(call check_arm_abi) endif ifeq ($(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y) - @$(call check_uclibc) + @$(call check_uclibc,$(SYSROOT_DIR)) else - @$(call check_glibc) + @$(call check_glibc,$(SYSROOT_DIR)) endif mkdir -p $(TARGET_DIR)/lib @echo "Copy external toolchain libraries to target..." @for libs in $(EXTERNAL_LIBS); do \ - $(call copy_toolchain_lib_root, $$libs, /lib, $(BR2_TOOLCHAIN_EXTERNAL_STRIP)); \ + $(call copy_toolchain_lib_root,$(SYSROOT_DIR),$$libs,/lib,$(BR2_TOOLCHAIN_EXTERNAL_STRIP)); \ done @echo "Copy external toolchain sysroot to staging..." - @$(call copy_toolchain_sysroot) + @$(call copy_toolchain_sysroot,$(SYSROOT_DIR)) @touch $@ |