| # Copyright (c) 2015 MediaTek Inc. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| LOCAL_PATH := $(call my-dir) |
| KERNEL_ROOT_DIR := $(PWD) |
| |
| define touch-kernel-image-timestamp |
| if [ -e $(1) ] && [ -e $(2) ] && cmp -s $(1) $(2); then \ |
| echo $(2) has no change;\ |
| mv -f $(1) $(2);\ |
| else \ |
| rm -f $(1);\ |
| fi |
| endef |
| |
| define move-kernel-module-files |
| v=`cat $(2)/include/config/kernel.release`;\ |
| for i in `grep -h '\.ko' /dev/null $(2)/.tmp_versions/*.mod`; do \ |
| o=`basename $$i`;\ |
| if [ -e $(1)/lib/modules/$$o ] && cmp -s $(1)/lib/modules/$$v/kernel/$$i $(1)/lib/modules/$$o; then \ |
| echo $(1)/lib/modules/$$o has no change;\ |
| else \ |
| echo Update $(1)/lib/modules/$$o;\ |
| mv -f $(1)/lib/modules/$$v/kernel/$$i $(1)/lib/modules/$$o;\ |
| fi;\ |
| done |
| endef |
| |
| define clean-kernel-module-dirs |
| rm -rf $(1)/lib/modules/$(if $(2),`cat $(2)/include/config/kernel.release`,*/) |
| endef |
| |
| # '\\' in command is wrongly replaced to '\\\\' in kernel/out/arch/arm/boot/compressed/.piggy.xzkern.cmd |
| define fixup-kernel-cmd-file |
| if [ -e $(1) ]; then cp $(1) $(1).bak; sed -e 's/\\\\\\\\/\\\\/g' < $(1).bak > $(1); rm -f $(1).bak; fi |
| endef |
| |
| ifeq ($(notdir $(LOCAL_PATH)),$(strip $(LINUX_KERNEL_VERSION))) |
| ifneq ($(strip $(TARGET_NO_KERNEL)),true) |
| KERNEL_DIR := $(LOCAL_PATH) |
| BUILT_SYSTEMIMAGE := $(call intermediates-dir-for,PACKAGING,systemimage)/system.img |
| |
| ifeq ($(KERNEL_CROSS_COMPILE),) |
| ifeq ($(TARGET_ARCH), arm64) |
| KERNEL_CROSS_COMPILE := $(KERNEL_ROOT_DIR)/$(TARGET_TOOLS_PREFIX) |
| else |
| KERNEL_CROSS_COMPILE := $(KERNEL_ROOT_DIR)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-eabi-$(TARGET_GCC_VERSION)/bin/arm-eabi- |
| endif |
| endif |
| ifeq ($(wildcard $(TARGET_PREBUILT_KERNEL)),) |
| KERNEL_OUT ?= $(if $(filter /% ~%,$(TARGET_OUT_INTERMEDIATES)),,$(KERNEL_ROOT_DIR)/)$(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ |
| ifeq ($(TARGET_ARCH), arm64) |
| ifeq ($(MTK_APPENDED_DTB_SUPPORT), yes) |
| KERNEL_ZIMAGE_OUT := $(KERNEL_OUT)/arch/$(TARGET_ARCH)/boot/Image.gz-dtb |
| else |
| KERNEL_ZIMAGE_OUT := $(KERNEL_OUT)/arch/$(TARGET_ARCH)/boot/Image.gz |
| endif |
| else |
| ifeq ($(MTK_APPENDED_DTB_SUPPORT), yes) |
| KERNEL_ZIMAGE_OUT := $(KERNEL_OUT)/arch/$(TARGET_ARCH)/boot/zImage-dtb |
| else |
| KERNEL_ZIMAGE_OUT := $(KERNEL_OUT)/arch/$(TARGET_ARCH)/boot/zImage |
| endif |
| endif |
| ifeq ($(strip $(MTK_INTERNAL)),yes) |
| KBUILD_BUILD_USER ?= mediatek |
| KBUILD_BUILD_HOST ?= mediatek |
| endif |
| export KBUILD_BUILD_USER |
| export KBUILD_BUILD_HOST |
| BUILT_KERNEL_TARGET := $(KERNEL_ZIMAGE_OUT).bin |
| INSTALLED_KERNEL_TARGET := $(PRODUCT_OUT)/kernel |
| TARGET_KERNEL_CONFIG := $(KERNEL_OUT)/.config |
| KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr |
| KERNEL_CONFIG_FILE := $(KERNEL_DIR)/arch/$(TARGET_ARCH)/configs/$(KERNEL_DEFCONFIG) |
| KERNEL_CONFIG_MODULES := $(shell grep ^CONFIG_MODULES=y $(KERNEL_CONFIG_FILE)) |
| KERNEL_MODULES_OUT := $(if $(filter /% ~%,$(TARGET_OUT)),,$(KERNEL_ROOT_DIR)/)$(TARGET_OUT) |
| KERNEL_MODULES_DEPS := $(if $(wildcard $(KERNEL_MODULES_OUT)/lib/modules/*.ko),$(wildcard $(KERNEL_MODULES_OUT)/lib/modules/*.ko),$(KERNEL_MODULES_OUT)/lib/modules) |
| KERNEL_MODULES_SYMBOLS_OUT := $(if $(filter /% ~%,$(TARGET_OUT_UNSTRIPPED)),,$(KERNEL_ROOT_DIR)/)$(TARGET_OUT_UNSTRIPPED)/system |
| KERNEL_MAKE_OPTION := O=$(KERNEL_OUT) ARCH=$(TARGET_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) ROOTDIR=$(KERNEL_ROOT_DIR) $(if $(strip $(SHOW_COMMANDS)),V=1) |
| |
| # .config cannot be PHONY due to config_data.gz |
| $(TARGET_KERNEL_CONFIG): $(KERNEL_CONFIG_FILE) $(LOCAL_PATH)/Android.mk |
| $(TARGET_KERNEL_CONFIG): $(shell find $(KERNEL_DIR) -name "Kconfig*") |
| $(hide) mkdir -p $(KERNEL_OUT) |
| $(MAKE) -C $(KERNEL_DIR) $(KERNEL_MAKE_OPTION) $(KERNEL_DEFCONFIG) |
| |
| $(KERNEL_MODULES_DEPS): $(KERNEL_ZIMAGE_OUT) ; |
| |
| .KATI_RESTAT: $(KERNEL_ZIMAGE_OUT) |
| $(KERNEL_ZIMAGE_OUT): $(TARGET_KERNEL_CONFIG) FORCE |
| $(hide) mkdir -p $(KERNEL_OUT) |
| $(MAKE) -C $(KERNEL_DIR) $(KERNEL_MAKE_OPTION) |
| $(hide) $(call fixup-kernel-cmd-file,$(KERNEL_OUT)/arch/$(TARGET_ARCH)/boot/compressed/.piggy.xzkern.cmd) |
| ifneq ($(KERNEL_CONFIG_MODULES),) |
| $(MAKE) -C $(KERNEL_DIR) $(KERNEL_MAKE_OPTION) modules |
| $(MAKE) -C $(KERNEL_DIR) $(KERNEL_MAKE_OPTION) INSTALL_MOD_PATH=$(KERNEL_MODULES_SYMBOLS_OUT) modules_install |
| $(hide) $(call move-kernel-module-files,$(KERNEL_MODULES_SYMBOLS_OUT),$(KERNEL_OUT)) |
| $(hide) $(call clean-kernel-module-dirs,$(KERNEL_MODULES_SYMBOLS_OUT),$(KERNEL_OUT)) |
| $(MAKE) -C $(KERNEL_DIR) $(KERNEL_MAKE_OPTION) INSTALL_MOD_PATH=$(KERNEL_MODULES_OUT) modules_install |
| $(hide) $(call move-kernel-module-files,$(KERNEL_MODULES_OUT),$(KERNEL_OUT)) |
| $(hide) $(call clean-kernel-module-dirs,$(KERNEL_MODULES_OUT),$(KERNEL_OUT)) |
| endif |
| |
| ifeq ($(strip $(MTK_HEADER_SUPPORT)), yes) |
| $(BUILT_KERNEL_TARGET): $(KERNEL_ZIMAGE_OUT) $(TARGET_KERNEL_CONFIG) $(LOCAL_PATH)/Android.mk | $(HOST_OUT_EXECUTABLES)/mkimage$(HOST_EXECUTABLE_SUFFIX) |
| $(hide) $(HOST_OUT_EXECUTABLES)/mkimage$(HOST_EXECUTABLE_SUFFIX) $< KERNEL 0xffffffff > $@ |
| |
| else |
| $(BUILT_KERNEL_TARGET): $(KERNEL_ZIMAGE_OUT) $(TARGET_KERNEL_CONFIG) $(LOCAL_PATH)/Android.mk | $(ACP) |
| $(copy-file-to-target) |
| |
| endif |
| |
| $(TARGET_PREBUILT_KERNEL): $(BUILT_KERNEL_TARGET) $(LOCAL_PATH)/Android.mk | $(ACP) |
| $(copy-file-to-new-target) |
| |
| else |
| BUILT_KERNEL_TARGET := $(TARGET_PREBUILT_KERNEL) |
| endif#TARGET_PREBUILT_KERNEL |
| |
| $(INSTALLED_KERNEL_TARGET): $(BUILT_KERNEL_TARGET) $(LOCAL_PATH)/Android.mk | $(ACP) |
| $(copy-file-to-target) |
| |
| ifneq ($(KERNEL_CONFIG_MODULES),) |
| $(BUILT_SYSTEMIMAGE): $(KERNEL_MODULES_DEPS) |
| endif |
| |
| .PHONY: kernel save-kernel kernel-savedefconfig %config-kernel clean-kernel |
| kernel: $(INSTALLED_KERNEL_TARGET) |
| save-kernel: $(TARGET_PREBUILT_KERNEL) |
| |
| kernel-savedefconfig: $(TARGET_KERNEL_CONFIG) |
| cp $(TARGET_KERNEL_CONFIG) $(KERNEL_CONFIG_FILE) |
| |
| kernel-menuconfig: |
| $(hide) mkdir -p $(KERNEL_OUT) |
| $(MAKE) -C $(KERNEL_DIR) $(KERNEL_MAKE_OPTION) menuconfig |
| |
| %config-kernel: |
| $(hide) mkdir -p $(KERNEL_OUT) |
| $(MAKE) -C $(KERNEL_DIR) $(KERNEL_MAKE_OPTION) $(patsubst %config-kernel,%config,$@) |
| |
| clean-kernel: |
| $(hide) rm -rf $(KERNEL_OUT) $(KERNEL_MODULES_OUT) $(INSTALLED_KERNEL_TARGET) |
| |
| .PHONY: check-kernel-config check-kernel-dotconfig |
| droid: check-kernel-config check-kernel-dotconfig |
| check-mtk-config: check-kernel-config check-kernel-dotconfig |
| check-kernel-config: |
| ifneq (yes,$(strip $(DISABLE_MTK_CONFIG_CHECK))) |
| python device/mediatek/build/build/tools/check_kernel_config.py -c $(MTK_TARGET_PROJECT_FOLDER)/ProjectConfig.mk -k $(KERNEL_CONFIG_FILE) -p $(MTK_PROJECT_NAME) |
| else |
| -python device/mediatek/build/build/tools/check_kernel_config.py -c $(MTK_TARGET_PROJECT_FOLDER)/ProjectConfig.mk -k $(KERNEL_CONFIG_FILE) -p $(MTK_PROJECT_NAME) |
| endif |
| |
| |
| ifneq ($(filter check-mtk-config check-kernel-dotconfig,$(MAKECMDGOALS)),) |
| .PHONY: $(TARGET_KERNEL_CONFIG) |
| endif |
| check-kernel-dotconfig: $(TARGET_KERNEL_CONFIG) |
| ifneq (yes,$(strip $(DISABLE_MTK_CONFIG_CHECK))) |
| python device/mediatek/build/build/tools/check_kernel_config.py -c $(MTK_TARGET_PROJECT_FOLDER)/ProjectConfig.mk -k $(TARGET_KERNEL_CONFIG) -p $(MTK_PROJECT_NAME) |
| else |
| -python device/mediatek/build/build/tools/check_kernel_config.py -c $(MTK_TARGET_PROJECT_FOLDER)/ProjectConfig.mk -k $(TARGET_KERNEL_CONFIG) -p $(MTK_PROJECT_NAME) |
| endif |
| |
| |
| endif#TARGET_NO_KERNEL |
| endif#LINUX_KERNEL_VERSION |