export WORK_TOP_PATH=$(pwd) export FA_COMPANY=falinux export FA_CHIPSET=am335x export FA_PRODUCT=bbb export BR_TOOLCHAIN_PREFIX=arm-buildroot-linux-gnueabihf export BR_TOOLCHAIN_PATH=/opt/toolchain/${FA_CHIPSET}/${FA_PRODUCT} export CROSS_COMPILE=${BR_TOOLCHAIN_PREFIX}- export ARCH=arm export PATH=${BR_TOOLCHAIN_PATH}/usr/bin:$PATH export WORK_LD_LIBRARY_PATH=${BR_TOOLCHAIN_PATH}/usr/lib export BOOTLOADER_DIR=u-boot-2015.04 export BUILDROOT_DIR=buildroot-2018.02.9 export KERNEL_DIR=linux-4.4.36