ifndef GCCARMEMB_TOOLCHAIN_PATH
$(error GCCARMEMB_TOOLCHAIN_PATH is not set)
endif

CROSS_COMPILE = ${GCCARMEMB_TOOLCHAIN_PATH}/bin/arm-none-eabi-

TOOLCHAIN_LIBS = gcc
LIBGCC_DIR = $(shell dirname `$(CROSS_COMPILE)gcc ${KBUILD_CFLAGS} -print-libgcc-file-name`)
NEWLIB_DIR = ${GCCARMEMB_TOOLCHAIN_PATH}/arm-none-eabi/lib/`$(CROSS_COMPILE)gcc ${KBUILD_CFLAGS} -print-multi-directory`

LIB_INCLUDE_DIR += -L ${LIBGCC_DIR} -L ${NEWLIB_DIR}
TOOLCHAIN_CFLAGS = -I${GCCARMEMB_TOOLCHAIN_PATH}/arm-none-eabi/include

DTC ?= dtc

export CROSS_COMPILE TOOLCHAIN_LIBS TOOLCHAIN_CFLAGS LIB_INCLUDE_DIR DTC