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KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/KERNEL
KERNEL_CONFIG := $(KERNEL_OUT)/.config
KERNEL_MODULES_OUT := $(TARGET_ROOT_OUT)/lib/modules
ifeq ($(TARGET_ARCH),arm64)
ARCH_ := arm64
CROSS_COMPILE_ := aarch64-linux-android-
else
ARCH_ := arm
CROSS_COMPILE_ := arm-eabi-
endif
JOBS := $(shell if [ $(cat /proc/cpuinfo | grep processor | wc -l) -gt 8 ]; then echo 8; else echo 4; fi)
ifeq ($(USES_UNCOMPRESSED_KERNEL),true)
TARGET_PREBUILT_KERNEL := $(KERNEL_OUT)/arch/$(ARCH_)/boot/Image
else
TARGET_PREBUILT_KERNEL := $(KERNEL_OUT)/arch/$(ARCH_)/boot/zImage
endif
$(KERNEL_OUT):
@echo "==== Start Kernel Compiling ... ===="
$(KERNEL_CONFIG): kernel/arch/$(ARCH_)/configs/$(KERNEL_DEFCONFIG)
echo "KERNEL_OUT = $KERNEL_OUT, KERNEL_DEFCONFIG = KERNEL_DEFCONFIG"
mkdir -p $(KERNEL_OUT)
$(MAKE) ARCH=$(ARCH_) -C kernel O=../$(KERNEL_OUT) $(KERNEL_DEFCONFIG)
ifeq ($(TARGET_BUILD_VARIANT),user)
DEBUGMODE := BUILD=no
USER_CONFIG := $(TARGET_OUT)/dummy
TARGET_DEVICE_USER_CONFIG := $(PLATDIR)/user_diff_config
TARGET_DEVICE_CUSTOM_CONFIG := device/sprd/$(TARGET_DEVICE)/ProjectConfig.mk
$(USER_CONFIG) : $(KERNEL_CONFIG)
$(info $(shell ./kernel/scripts/sprd_custom_config_kernel.sh $(KERNEL_CONFIG) $(TARGET_DEVICE_CUSTOM_CONFIG)))
$(info $(shell ./kernel/scripts/sprd_create_user_config.sh $(KERNEL_CONFIG) $(TARGET_DEVICE_USER_CONFIG)))
else
DEBUGMODE := $(DEBUGMODE)
USER_CONFIG := $(TARGET_OUT)/dummy
TARGET_DEVICE_CUSTOM_CONFIG := device/sprd/$(TARGET_DEVICE)/ProjectConfig.mk
$(USER_CONFIG) : $(KERNEL_CONFIG)
$(info $(shell ./kernel/scripts/sprd_custom_config_kernel.sh $(KERNEL_CONFIG) $(TARGET_DEVICE_CUSTOM_CONFIG)))
endif
$(TARGET_PREBUILT_KERNEL) : $(KERNEL_OUT) $(USER_CONFIG) | $(KERNEL_CONFIG)
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(ARCH_) CROSS_COMPILE=$(CROSS_COMPILE_) headers_install
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(ARCH_) CROSS_COMPILE=$(CROSS_COMPILE_) -j${JOBS}
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(ARCH_) CROSS_COMPILE=$(CROSS_COMPILE_) modules
@-mkdir -p $(KERNEL_MODULES_OUT)
@-find $(TARGET_OUT_INTERMEDIATES) -name *.ko ! -name mali.ko | xargs -I{} cp {} $(KERNEL_MODULES_OUT)
@-find $(KERNEL_MODULES_OUT) -name *.ko ! -name mali.ko -exec $(CROSS_COMPILE_)strip -d --strip-unneeded {} \;
kernelheader:
mkdir -p $(KERNEL_OUT)
$(MAKE) ARCH=$(ARCH_) -C kernel O=../$(KERNEL_OUT) headers_install
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