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AndroidKernel.mk
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AndroidKernel.mk
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#Android makefile to build kernel as a part of Android Build
PERL = perl
ifeq ($(TARGET_PREBUILT_KERNEL),)
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
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 $$of;' kernel/arch/arm/configs/$(KERNEL_DEFCONFIG))
ifeq "$(KERNEL_USE_OF)" "y"
DTS_NAME ?= $(MSM_ARCH)
DTS_FILES = $(wildcard $(TOP)/kernel/arch/arm/boot/dts/$(DTS_NAME)*.dts)
DTS_FILE = $(lastword $(subst /, ,$(1)))
DTB_FILE = $(addprefix $(KERNEL_OUT)/arch/arm/boot/,$(patsubst %.dts,%.dtb,$(call DTS_FILE,$(1))))
ZIMG_FILE = $(addprefix $(KERNEL_OUT)/arch/arm/boot/,$(patsubst %.dts,%-zImage,$(call DTS_FILE,$(1))))
KERNEL_ZIMG = $(KERNEL_OUT)/arch/arm/boot/zImage
DTC = $(KERNEL_OUT)/scripts/dtc/dtc
define append-dtb
mkdir -p $(KERNEL_OUT)/arch/arm/boot;\
$(foreach d, $(DTS_FILES), \
$(DTC) -p 1024 -O dtb -o $(call DTB_FILE,$(d)) $(d); \
cat $(KERNEL_ZIMG) $(call DTB_FILE,$(d)) > $(call ZIMG_FILE,$(d));)
endef
else
define append-dtb
endef
endif
ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true)
$(info Using uncompressed kernel)
TARGET_PREBUILT_KERNEL := $(KERNEL_OUT)/piggy
else
TARGET_PREBUILT_KERNEL := $(TARGET_PREBUILT_INT_KERNEL)
endif
define mv-modules
mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.dep`;\
if [ "$$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
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
$(KERNEL_OUT):
mkdir -p $(KERNEL_OUT)
$(KERNEL_CONFIG): $(KERNEL_OUT)
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- $(KERNEL_DEFCONFIG)
$(KERNEL_OUT)/piggy : $(TARGET_PREBUILT_INT_KERNEL)
$(hide) gunzip -c $(KERNEL_OUT)/arch/arm/boot/compressed/piggy.gzip > $(KERNEL_OUT)/piggy
ifndef ECLOUD_BUILD_ID
$(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=../../$(KERNEL_MODULES_INSTALL) INSTALL_MOD_STRIP=1 ARCH=arm CROSS_COMPILE=arm-eabi- modules_install
ifeq ($(PRODUCT_SUPPORT_EXFAT), y)
@cp -f $(ANDROID_BUILD_TOP)/kernel/tuxera_update.sh $(ANDROID_BUILD_TOP)
@sh tuxera_update.sh --target target/lg.d/mobile-mtp-3013.2.7.2 --use-cache --latest --max-cache-entries 2 --source-dir $(ANDROID_BUILD_TOP)/kernel --output-dir $(ANDROID_BUILD_TOP)/$(KERNEL_OUT) -a --user lg-mobile --pass AumlTsj0ou
@tar -xzf tuxera-exfat*.tgz
@mkdir -p $(TARGET_OUT_EXECUTABLES)
@cp $(ANDROID_BUILD_TOP)/tuxera-exfat*/exfat/kernel-module/texfat.ko $(ANDROID_BUILD_TOP)/$(TARGET_OUT_EXECUTABLES)/../lib/modules/
@cp $(ANDROID_BUILD_TOP)/tuxera-exfat*/exfat/tools/* $(TARGET_OUT_EXECUTABLES)
@rm -f kheaders*.tar.bz2
@rm -f tuxera-exfat*.tgz
@rm -rf tuxera-exfat*
@rm -f tuxera_update.sh
endif
$(mv-modules)
$(clean-module-folder)
$(append-dtb)
else
$(TARGET_PREBUILT_INT_KERNEL): $(KERNEL_OUT) $(KERNEL_CONFIG) $(KERNEL_HEADERS_INSTALL) build_kernel MOVE_CLEAN
$(clean-module-folder)
$(append-dtb)
build_kernel:
$(MAKE) -C kernel O=../$(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=../../$(KERNEL_MODULES_INSTALL) ARCH=arm CROSS_COMPILE=arm-eabi- modules_install
ifeq ($(PRODUCT_SUPPORT_EXFAT), y)
@cp -f $(ANDROID_BUILD_TOP)/kernel/tuxera_update.sh $(ANDROID_BUILD_TOP)
@sh tuxera_update.sh --target target/lg.d/mobile-mtp-3013.2.7.2 --use-cache --latest --max-cache-entries 2 --source-dir $(ANDROID_BUILD_TOP)/kernel --output-dir $(ANDROID_BUILD_TOP)/$(KERNEL_OUT) -a --user lg-mobile --pass AumlTsj0ou
@tar -xzf tuxera-exfat*.tgz
@mkdir -p $(TARGET_OUT_EXECUTABLES)
@cp $(ANDROID_BUILD_TOP)/tuxera-exfat*/exfat/kernel-module/texfat.ko $(ANDROID_BUILD_TOP)/$(TARGET_OUT_EXECUTABLES)/../lib/modules/
@cp $(ANDROID_BUILD_TOP)/tuxera-exfat*/exfat/tools/* $(TARGET_OUT_EXECUTABLES)
@rm -f kheaders*.tar.bz2
@rm -f tuxera-exfat*.tgz
@rm -rf tuxera-exfat*
@rm -f tuxera_update.sh
endif
#pragma RUNLOCAL
MOVE_CLEAN:
$(mv-modules)
endif
$(KERNEL_HEADERS_INSTALL): $(KERNEL_OUT) $(KERNEL_CONFIG)
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- headers_install
kerneltags: $(KERNEL_OUT) $(KERNEL_CONFIG)
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- tags
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)
endif