export PATH="/opt/rg35xx-toolchain/usr/bin:${PATH}:/opt/rg35xx-toolchain/usr/arm-buildroot-linux-gnueabihf/sysroot/bin"
export CROSS_COMPILE=/opt/rg35xx-toolchain/usr/bin/arm-buildroot-linux-gnueabihf-
export PREFIX=/opt/rg35xx-toolchain/usr/arm-buildroot-linux-gnueabihf/sysroot/usr
export UNION_PLATFORM=rg35xx