MAKEFILE_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))

BUILD_DIR ?= $(MAKEFILE_DIR)build
ARCH ?= x86
KERNEL_FILE_NAME ?= bzImage

export ARCH
export KERNEL_FILE_NAME

KERNEL_PATH = $(BUILD_DIR)/arch/$(ARCH)/boot/$(bzImage)

all: $(KERNEL_PATH)


$(KERNEL_PATH):
	@mkdir -p $(BUILD_DIR)/linux/kernel
	cp $(MAKEFILE_DIR)/linux/.config $(BUILD_DIR)/linux/kernel/.config
	$(MAKE) -C $(MAKEFILE_DIR)/linux/kernel O=$(BUILD_DIR)/linux/kernel



clean:
	rm -rf $(BUILD_DIR)