Merge "AndroidKernel.mk: Add support for multi kernel tree" (9a463f78) · Commits · e / devices / android_kernel_xiaomi_markw

AndroidKernel.mk

+41 −15

Original line number	Diff line number	Diff line
		@@ -47,7 +47,27 @@ ifeq ($(strip $(KERNEL_GCC_NOANDROID_CHK)),0)
		KERNEL_CFLAGS := KCFLAGS=-mno-android
		endif

		mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
		current_dir := $(notdir $(patsubst %/,%,$(dir $(mkfile_path))))
		ifeq ($(TARGET_KERNEL_VERSION),)
		TARGET_KERNEL_VERSION := 3.18
		endif
		TARGET_KERNEL := msm-$(TARGET_KERNEL_VERSION)
		ifeq ($(TARGET_KERNEL),$(current_dir))
		# New style, kernel/msm-version
		BUILD_ROOT_LOC := ../../
		TARGET_KERNEL_SOURCE := kernel/$(TARGET_KERNEL)
		KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/kernel/$(TARGET_KERNEL)
		KERNEL_SYMLINK := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
		KERNEL_USR := $(KERNEL_SYMLINK)/usr
		else
		# Legacy style, kernel source directly under kernel
		KERNEL_LEGACY_DIR := true
		BUILD_ROOT_LOC := ../
		TARGET_KERNEL_SOURCE := kernel
		KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
		endif

		KERNEL_CONFIG := $(KERNEL_OUT)/.config

		ifeq ($(KERNEL_DEFCONFIG)$(wildcard $(KERNEL_CONFIG)),)
		@@ -92,47 +112,53 @@ mpath=`dirname $$mdpath`; rm -rf $$mpath;\
		fi
		endef

		ifneq ($(KERNEL_LEGACY_DIR),true)
		$(KERNEL_USR): $(TARGET_PREBUILT_INT_KERNEL)
		rm -rf $(KERNEL_SYMLINK)
		ln -s kernel/$(TARGET_KERNEL) $(KERNEL_SYMLINK)
		endif

		$(KERNEL_OUT):
		mkdir -p $(KERNEL_OUT)

		$(KERNEL_CONFIG): $(KERNEL_OUT)
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG)
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG)
		$(hide) if [ ! -z "$(KERNEL_CONFIG_OVERRIDE)" ]; then \
		echo "Overriding kernel config with '$(KERNEL_CONFIG_OVERRIDE)'"; \
		echo $(KERNEL_CONFIG_OVERRIDE) >> $(KERNEL_OUT)/.config; \
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) oldconfig; fi
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) oldconfig; fi

		$(TARGET_PREBUILT_INT_KERNEL): $(KERNEL_OUT) $(KERNEL_HEADERS_INSTALL)
		$(hide) echo "Building kernel..."
		$(hide) rm -rf $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/dts
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_CFLAGS)
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_CFLAGS) modules
		$(MAKE) -C kernel O=../$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) INSTALL_MOD_STRIP=1 ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) modules_install
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_CFLAGS)
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_CFLAGS) modules
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) INSTALL_MOD_STRIP=1 ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) modules_install
		$(mv-modules)
		$(clean-module-folder)

		$(KERNEL_HEADERS_INSTALL): $(KERNEL_OUT)
		$(hide) if [ ! -z "$(KERNEL_HEADER_DEFCONFIG)" ]; then \
		$(hide) rm -f ../$(KERNEL_CONFIG); \
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_HEADER_DEFCONFIG); \
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) headers_install; fi
		$(hide) rm -f $(BUILD_ROOT_LOC)$(KERNEL_CONFIG); \
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_HEADER_DEFCONFIG); \
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) headers_install; fi
		$(hide) if [ "$(KERNEL_HEADER_DEFCONFIG)" != "$(KERNEL_DEFCONFIG)" ]; then \
		echo "Used a different defconfig for header generation"; \
		$(hide) rm -f ../$(KERNEL_CONFIG); \
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG); fi
		$(hide) rm -f $(BUILD_ROOT_LOC)$(KERNEL_CONFIG); \
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG); fi
		$(hide) if [ ! -z "$(KERNEL_CONFIG_OVERRIDE)" ]; then \
		echo "Overriding kernel config with '$(KERNEL_CONFIG_OVERRIDE)'"; \
		echo $(KERNEL_CONFIG_OVERRIDE) >> $(KERNEL_OUT)/.config; \
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) oldconfig; fi
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) oldconfig; fi

		kerneltags: $(KERNEL_OUT) $(KERNEL_CONFIG)
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) tags
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) tags

		kernelconfig: $(KERNEL_OUT) $(KERNEL_CONFIG)
		env KCONFIG_NOTIMESTAMP=true \
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) menuconfig
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) menuconfig
		env KCONFIG_NOTIMESTAMP=true \
		$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) savedefconfig
		$(MAKE) -C $(TARGET_KERNEL_SOURCE) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) savedefconfig
		cp $(KERNEL_OUT)/defconfig kernel/arch/$(KERNEL_ARCH)/configs/$(KERNEL_DEFCONFIG)

		endif