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LOCAL_PATH := $(call my-dir) | ||
KERNEL_ROOT_DIR := $(PWD) | ||
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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 | ||
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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 | ||
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define clean-kernel-module-dirs | ||
rm -rf $(1)/lib/modules/$(if $(2),`cat $(2)/include/config/kernel.release`,*/) | ||
endef | ||
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# '\\' 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 $(1).bak; fi | ||
endef | ||
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ifeq ($(notdir $(LOCAL_PATH)),$(strip $(LINUX_KERNEL_VERSION))) | ||
ifneq ($(strip $(TARGET_NO_KERNEL)),true) | ||
KERNEL_DIR := $(LOCAL_PATH) | ||
BUILT_SYSTEMIMAGE := $(call intermediates-dir-for,PACKAGING,systemimage)/system.img | ||
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ifeq ($(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 | ||
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) | ||
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# .config cannot be PHONY due to config_data.gz | ||
$(TARGET_KERNEL_CONFIG): $(KERNEL_CONFIG_FILE) | ||
$(hide) mkdir -p $(KERNEL_OUT) | ||
$(MAKE) -C $(KERNEL_DIR) $(KERNEL_MAKE_OPTION) $(KERNEL_DEFCONFIG) | ||
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$(KERNEL_MODULES_DEPS): $(KERNEL_ZIMAGE_OUT) ; | ||
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$(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),$(KERNEL_OUT)) | ||
endif | ||
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ifeq ($(strip $(MTK_HEADER_SUPPORT)), yes) | ||
$(BUILT_KERNEL_TARGET): $(KERNEL_ZIMAGE_OUT) $(TARGET_KERNEL_CONFIG) | $(HOST_OUT_EXECUTABLES)/mkimage$(HOST_EXECUTABLE_SUFFIX) | ||
$(hide) $(HOST_OUT_EXECUTABLES)/mkimage$(HOST_EXECUTABLE_SUFFIX) $< KERNEL 0xffffffff > $@ | ||
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else | ||
$(BUILT_KERNEL_TARGET): $(KERNEL_ZIMAGE_OUT) $(TARGET_KERNEL_CONFIG) | $(ACP) | ||
$(copy-file-to-target) | ||
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endif | ||
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$(TARGET_PREBUILT_KERNEL): $(BUILT_KERNEL_TARGET) | $(ACP) | ||
$(copy-file-to-new-target) | ||
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else | ||
BUILT_KERNEL_TARGET := $(TARGET_PREBUILT_KERNEL) | ||
endif#TARGET_PREBUILT_KERNEL | ||
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$(INSTALLED_KERNEL_TARGET): $(BUILT_KERNEL_TARGET) | $(ACP) | ||
$(copy-file-to-target) | ||
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ifneq ($(KERNEL_CONFIG_MODULES),) | ||
$(BUILT_SYSTEMIMAGE): $(KERNEL_MODULES_DEPS) | ||
endif | ||
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.PHONY: kernel install-kernel savedefconfig-kernel %config-kernel clean-kernel | ||
kernel: $(INSTALLED_KERNEL_TARGET) | ||
all_modules: $(INSTALLED_KERNEL_TARGET) | ||
save-kernel: $(TARGET_PREBUILT_KERNEL) | ||
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#TODO | ||
savedefconfig-kernel: | ||
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%config-kernel: | ||
$(hide) mkdir -p $(KERNEL_OUT) | ||
$(MAKE) -C $(KERNEL_DIR) $(KERNEL_MAKE_OPTION) $(patsubst %config-kernel,%config,$@) | ||
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clean-kernel: | ||
$(hide) rm -rf $(KERNEL_OUT) $(KERNEL_MODULES_OUT) $(INSTALLED_KERNEL_TARGET) | ||
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droid: check-kernel-config | ||
check-mtk-config: check-kernel-config | ||
check-kernel-config: | ||
-python device/mediatek/build/build/tools/check_kernel_config.py -c $(MTK_TARGET_PROJECT_FOLDER)/ProjectConfig.mk -k $(KERNEL_DIR)/arch/$(TARGET_ARCH)/configs/$(KERNEL_DEFCONFIG) -p $(MTK_PROJECT_NAME) | ||
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endif#TARGET_NO_KERNEL | ||
endif#LINUX_KERNEL_VERSION |
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