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#Android makefile to build kernel as a part of Android Build | ||
PERL = perl | ||
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ifeq ($(TARGET_PREBUILT_KERNEL),) | ||
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KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ | ||
KERNEL_CONFIG := $(KERNEL_OUT)/.config | ||
TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/arm/boot/zImage | ||
KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr | ||
KERNEL_MODULES_INSTALL := system | ||
KERNEL_MODULES_OUT := $(TARGET_OUT)/lib/modules | ||
KERNEL_IMG=$(KERNEL_OUT)/arch/arm/boot/Image | ||
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MSM_ARCH ?= $(shell $(PERL) -e 'while (<>) {$$a = $$1 if /CONFIG_ARCH_((?:MSM|QSD)[a-zA-Z0-9]+)=y/; $$r = $$1 if /CONFIG_MSM_SOC_REV_(?!NONE)(\w+)=y/;} print lc("$$a$$r\n");' $(KERNEL_CONFIG)) | ||
KERNEL_USE_OF ?= $(shell $(PERL) -e '$$of = "n"; while (<>) { if (/CONFIG_USE_OF=y/) { $$of = "y"; break; } } print $$of;' kernel/arch/arm/configs/$(KERNEL_DEFCONFIG)) | ||
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ifeq "$(KERNEL_USE_OF)" "y" | ||
DTS_NAME ?= $(MSM_ARCH) | ||
DTS_FILES = $(wildcard $(TOP)/kernel/arch/arm/boot/dts/$(DTS_NAME)*.dts) | ||
DTS_FILE = $(lastword $(subst /, ,$(1))) | ||
DTB_FILE = $(addprefix $(KERNEL_OUT)/arch/arm/boot/,$(patsubst %.dts,%.dtb,$(call DTS_FILE,$(1)))) | ||
ZIMG_FILE = $(addprefix $(KERNEL_OUT)/arch/arm/boot/,$(patsubst %.dts,%-zImage,$(call DTS_FILE,$(1)))) | ||
KERNEL_ZIMG = $(KERNEL_OUT)/arch/arm/boot/zImage | ||
DTC = $(KERNEL_OUT)/scripts/dtc/dtc | ||
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define append-dtb | ||
mkdir -p $(KERNEL_OUT)/arch/arm/boot;\ | ||
$(foreach d, $(DTS_FILES), \ | ||
$(DTC) -p 1024 -O dtb -o $(call DTB_FILE,$(d)) $(d); \ | ||
cat $(KERNEL_ZIMG) $(call DTB_FILE,$(d)) > $(call ZIMG_FILE,$(d));) | ||
endef | ||
else | ||
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define append-dtb | ||
endef | ||
endif | ||
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ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true) | ||
$(info Using uncompressed kernel) | ||
TARGET_PREBUILT_KERNEL := $(KERNEL_OUT)/piggy | ||
else | ||
TARGET_PREBUILT_KERNEL := $(TARGET_PREBUILT_INT_KERNEL) | ||
endif | ||
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define mv-modules | ||
mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.dep`;\ | ||
if [ "$$mdpath" != "" ];then\ | ||
mpath=`dirname $$mdpath`;\ | ||
ko=`find $$mpath/kernel -type f -name *.ko`;\ | ||
for i in $$ko; do mv $$i $(KERNEL_MODULES_OUT)/; done;\ | ||
fi | ||
endef | ||
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define clean-module-folder | ||
mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.dep`;\ | ||
if [ "$$mdpath" != "" ];then\ | ||
mpath=`dirname $$mdpath`; rm -rf $$mpath;\ | ||
fi | ||
endef | ||
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$(KERNEL_OUT): | ||
mkdir -p $(KERNEL_OUT) | ||
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$(KERNEL_CONFIG): $(KERNEL_OUT) | ||
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- $(KERNEL_DEFCONFIG) | ||
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$(KERNEL_OUT)/piggy : $(TARGET_PREBUILT_INT_KERNEL) | ||
$(hide) gunzip -c $(KERNEL_OUT)/arch/arm/boot/compressed/piggy.gzip > $(KERNEL_OUT)/piggy | ||
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$(TARGET_PREBUILT_INT_KERNEL): $(KERNEL_OUT) $(KERNEL_CONFIG) $(KERNEL_HEADERS_INSTALL) | ||
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- | ||
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- modules | ||
$(MAKE) -C kernel O=../$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) ARCH=arm CROSS_COMPILE=arm-eabi- modules_install | ||
$(mv-modules) | ||
$(clean-module-folder) | ||
$(append-dtb) | ||
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$(KERNEL_HEADERS_INSTALL): $(KERNEL_OUT) $(KERNEL_CONFIG) | ||
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- headers_install | ||
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kerneltags: $(KERNEL_OUT) $(KERNEL_CONFIG) | ||
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- tags | ||
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kernelconfig: $(KERNEL_OUT) $(KERNEL_CONFIG) | ||
env KCONFIG_NOTIMESTAMP=true \ | ||
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- menuconfig | ||
env KCONFIG_NOTIMESTAMP=true \ | ||
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- savedefconfig | ||
cp $(KERNEL_OUT)/defconfig kernel/arch/arm/configs/$(KERNEL_DEFCONFIG) | ||
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endif |
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