Makefile

# NOTE: Docker Server to fetch docker images
DOCKER_SERVER ?= "docker.io"

# To make the build reproducible, we fix the kernel headers
# version, but leave opportunity to update it.
KVER_DOCKER ?= v6.1
ifdef KVER
KVER_DOCKER = ${KVER}
endif

KVER ?= $(shell uname -r)
KDIR ?= /lib/modules/$(KVER)/build

# the tag of the image we base on
DOCKER_IN_CONFIG_HASH ?= kver-$(subst .,-,${KVER_DOCKER})
DOCKER_IN_TAG ?= config_${DOCKER_IN_CONFIG_HASH}

# how to tag the outgoing image (for more detailed description
# see the bosch-linux-ext-modules-buld repository Makefile)
DOCKER_OUT_CONFIG_HASH ?= ${DOCKER_IN_CONFIG_HASH}
DOCKER_OUT_TAG ?= config_${DOCKER_OUT_CONFIG_HASH}

# NOTE: don't change this unless you're sure what you're doing
#	cause by this tag the dependent components refer to the current
#	component
TARGET_STAGE = iccom
TEST_TARGET_STAGE = iccom-test

# ${1} the target docker stage to reach
# ${2}: the path (name) for the newly created Docker image
# ${3}: the tag for the newly created Docker image
define docker_build
	cd $$PWD && docker build                                      \
					--build-arg DOCKER_IN_TAG=${DOCKER_IN_TAG}    \
					--build-arg DOCKER_SERVER=${DOCKER_SERVER}    \
					--tag "${2}:${3}"                             \
					--target ${1}                                 \
					--progress=plain                              \
					.                                             \
		&& echo "docker-image: \033[0;32mOK\033[0m"
endef

.PHONY: test docker-image

# Creates the ICCom & Full Duplex Test Transport Test Build
default:
	$(MAKE) -C ${KDIR} M=$$PWD \
		CONFIG_BOSCH_ICCOM=m \
		CONFIG_ICCOM_VERSION=$(git rev-parse HEAD) \
		CONFIG_BOSCH_FD_TEST_TRANSPORT=m \
		CONFIG_BOSCH_ICCOM_TTY=m \
		CONFIG_BOSCH_ICCOM_SOCKETS=m

# Cleans ICCom & Full Duplex Test Transport Test Build
clean:
	$(MAKE) -C ${KDIR} M=$$PWD clean

# Install to current machine
install:
	$(MAKE) -C $(KDIR) M=$$PWD modules_install
	cp $$PWD/include/linux/iccom.h \
		/usr/src/linux-headers-${KVER}/include/linux/iccom.h

# Try to remove the installed driver from current machine
uninstall:
	rm -f /usr/src/linux-headers-${KVER}/include/linux/iccom.h
	rm -f /lib/modules/${KVER}/extra/src/iccom.ko
	rm -f /lib/modules/${KVER}/extra/src/fd_test_transport.ko

# Build Docker deployed image (Docker image with built and installed ICCom)

# This will build the reusable Docker Stage for
# other components to build the external kernel modules
docker-image:
	@echo
	@echo '                    Building for kernel: ${KVER}'
	@echo
	@echo '  ************************************************************************'
	@echo '  |                             NOTE:                                    |'
	@echo '  |                                                                      |'
	@echo '  |  The docker image build will be based on the                         |'
	@echo '  |      * docker.io/bosch-linux-full-duplex-interface:config_kver-vA-B  |'
	@echo '  |  docker image (NOTE: A and B are kernel major and minor version      |'
	@echo '  |  numbers), to get it you need to clone                               |'
	@echo '  |      * bosch-linux-full-duplex-interface  repository                 |'
	@echo '  |  and then run "make KVER=vA.B test" in the root of the repo.         |'
	@echo '  |                                                                      |'
	@echo '  ************************************************************************'
	@echo
	$(call docker_build, ${TARGET_STAGE},${TARGET_STAGE},${DOCKER_OUT_TAG})

# test if the image is really working
test: docker-image
	$(call docker_build, ${TEST_TARGET_STAGE},${TEST_TARGET_STAGE},${DOCKER_OUT_TAG})

# test for supported/relevant kernel versions
testall:
	$(MAKE) KVER=v5.12 test
	$(MAKE) KVER=v6.1 test
#	$(MAKE) KVER=v6.6 test
	$(MAKE) KVER=v6.12 test

# Will remove the docker image generated by the build
# and all dangling images as well
clean-docker-images:
	docker rmi ${TARGET_STAGE} --force
	docker rmi ${TEST_TARGET_STAGE} --force
	docker image prune --force
	docker system prune --force

print-output-docker-image-tag:
	@echo "${TARGET_STAGE}:${DOCKER_OUT_TAG}"