.PHONY: build-greybus

$(PRODUCT_OUT)/ramdisk.img: build-greybus

GREYBUS_MODULE_OUT_PATH := $(PRODUCT_OUT)/root/lib/modules

include $(CLEAR_VARS)
GREYBUS_SRC_PATH := $(ANDROID_BUILD_TOP)/external/greybus/
LOCAL_PATH := $(GREYBUS_SRC_PATH)
LOCAL_SRC_FILES := greybus.ko
LOCAL_MODULE := $(LOCAL_SRC_FILES)
LOCAL_MODULE_CLASS := EXECUTABLES
LOCAL_MODULE_PATH := $(GREYBUS_MODULE_OUT_PATH)
$(LOCAL_PATH)/$(LOCAL_SRC_FILES): build-greybus
include $(BUILD_PREBUILT)

KDIRARG := KERNELDIR="${ANDROID_PRODUCT_OUT}/obj/kernel"
ifneq ($(ANDROID_64),)
  ARCHARG := ARCH=arm64
  FLAGARG := EXTRA_CFLAGS+=-fno-pic
else
  ARCHARG := ARCH=arm
  FLAGARG := EXTRA_CFLAGS+=-fno-pic
endif
ARGS := $(KDIRARG) $(ARCHARG) $(FLAGARG)

build-greybus: android_kernel
	make clean -C $(GREYBUS_SRC_PATH)
	cd $(GREYBUS_SRC_PATH) &&\
	$(MAKE) -j$(MAKE_JOBS) CROSS_COMPILE=$(KERNEL_TOOLS_PREFIX) $(ARGS)
	mkdir -p $(GREYBUS_MODULE_OUT_PATH)
	ko=`find $(GREYBUS_SRC_PATH) -type f -name "*.ko"`;\
	for i in $$ko; do $(KERNEL_TOOLCHAIN_PATH)strip --strip-unneeded $$i;\
	mv $$i $(GREYBUS_MODULE_OUT_PATH)/; done;