Makefile

DRIVER_SRC=dma_driver_interface.o dma_register.o dma_bram_conf.o dma_hardware_procedures.o tests/mockable_functions.o

ifeq ($(OUT_OF_TREE), y)
ifndef PETALINUX_BUILD
$(error Provide a path to the petalinux build directory)
endif

obj-m += dma_ctrl_driver.o
dma_ctrl_driver-objs := $(DRIVER_SRC)

export ARCH=arm64
export CROSS_COMPILE=aarch64-xilinx-linux-
export PATH := $(PETALINUX_BUILD)/tmp/work/zynqmp_generic_xczu9eg-xilinx-linux/linux-xlnx/6.6.40+git/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/:$(PATH)

KERNEL_PATH="$(PETALINUX_BUILD)/tmp/work/zynqmp_generic_xczu9eg-xilinx-linux/linux-xlnx/6.6.40+git/linux-zynqmp_generic_xczu9eg-standard-build/"

all:
	make -C ${KERNEL_PATH} M=$(PWD) modules

clean:
	make -C ${KERNEL_PATH} M=$(PWD) clean
else
TEST_SRC=tests/dma_bram_tests.o  tests/dma_register_tests.o  tests/dma_tests.o
ccflags-$(CONFIG_DMA_PLATFORM_DRIVER) += -Werror=undef
obj-$(CONFIG_DMA_PLATFORM_DRIVER) += dma_ctrl_driver.o
dma_ctrl_driver-objs := $(DRIVER_SRC)
ccflags-$(CONFIG_DMA_PLATFORM_DRIVER_TEST) += -Werror=undef
obj-$(CONFIG_DMA_PLATFORM_DRIVER_TEST) += dma_tests.o
dma_tests-objs := $(TEST_SRC)
endif