forked from rubenslte/android_kernel_samsung_msm8226
Sridhar Gujje
f2bed4e634
We now set the install path for the kernel image if it has not already been set earlier by the build system. Change-Id: I88d23916901ae9a96917c138a200d7e1772f02c0 Signed-off-by: Ameya Thakur <ameyat@codeaurora.org> Signed-off-by: Sridhar Gujje <sgujje@codeaurora.org>
101 lines
3.8 KiB
Makefile
101 lines
3.8 KiB
Makefile
#Android makefile to build kernel as a part of Android Build
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PERL = perl
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KERNEL_TARGET := $(strip $(INSTALLED_KERNEL_TARGET))
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ifeq ($(KERNEL_TARGET),)
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INSTALLED_KERNEL_TARGET := $(PRODUCT_OUT)/kernel
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endif
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ifeq ($(TARGET_PREBUILT_KERNEL),)
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KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
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KERNEL_CONFIG := $(KERNEL_OUT)/.config
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ifeq ($(TARGET_KERNEL_APPEND_DTB), true)
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TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/arm/boot/zImage-dtb
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else
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TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/arm/boot/zImage
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endif
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KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr
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KERNEL_MODULES_INSTALL := system
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KERNEL_MODULES_OUT := $(TARGET_OUT)/lib/modules
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KERNEL_IMG=$(KERNEL_OUT)/arch/arm/boot/Image
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DTS_NAMES ?= $(shell $(PERL) -e 'while (<>) {$$a = $$1 if /CONFIG_ARCH_((?:MSM|QSD|MPQ)[a-zA-Z0-9]+)=y/; $$r = $$1 if /CONFIG_MSM_SOC_REV_(?!NONE)(\w+)=y/; $$arch = $$arch.lc("$$a$$r ") if /CONFIG_ARCH_((?:MSM|QSD|MPQ)[a-zA-Z0-9]+)=y/} print $$arch;' $(KERNEL_CONFIG))
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KERNEL_USE_OF ?= $(shell $(PERL) -e '$$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"
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DTS_FILES = $(wildcard $(TOP)/kernel/arch/arm/boot/dts/$(DTS_NAME)*.dts)
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DTS_FILE = $(lastword $(subst /, ,$(1)))
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DTB_FILE = $(addprefix $(KERNEL_OUT)/arch/arm/boot/,$(patsubst %.dts,%.dtb,$(call DTS_FILE,$(1))))
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ZIMG_FILE = $(addprefix $(KERNEL_OUT)/arch/arm/boot/,$(patsubst %.dts,%-zImage,$(call DTS_FILE,$(1))))
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KERNEL_ZIMG = $(KERNEL_OUT)/arch/arm/boot/zImage
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DTC = $(KERNEL_OUT)/scripts/dtc/dtc
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define append-dtb
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mkdir -p $(KERNEL_OUT)/arch/arm/boot;\
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$(foreach DTS_NAME, $(DTS_NAMES), \
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$(foreach d, $(DTS_FILES), \
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$(DTC) -p 1024 -O dtb -o $(call DTB_FILE,$(d)) $(d); \
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cat $(KERNEL_ZIMG) $(call DTB_FILE,$(d)) > $(call ZIMG_FILE,$(d));))
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endef
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else
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define append-dtb
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endef
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endif
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ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true)
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$(info Using uncompressed kernel)
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TARGET_PREBUILT_KERNEL := $(KERNEL_OUT)/piggy
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else
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TARGET_PREBUILT_KERNEL := $(TARGET_PREBUILT_INT_KERNEL)
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endif
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define mv-modules
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mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.dep`;\
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if [ "$$mdpath" != "" ];then\
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mpath=`dirname $$mdpath`;\
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ko=`find $$mpath/kernel -type f -name *.ko`;\
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for i in $$ko; do mv $$i $(KERNEL_MODULES_OUT)/; done;\
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fi
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endef
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define clean-module-folder
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mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.dep`;\
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if [ "$$mdpath" != "" ];then\
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mpath=`dirname $$mdpath`; rm -rf $$mpath;\
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fi
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endef
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$(KERNEL_OUT):
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mkdir -p $(KERNEL_OUT)
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$(KERNEL_CONFIG): $(KERNEL_OUT)
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$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- $(KERNEL_DEFCONFIG)
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$(KERNEL_OUT)/piggy : $(TARGET_PREBUILT_INT_KERNEL)
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$(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) $(KERNEL_HEADERS_INSTALL)
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$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi-
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$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- modules
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$(MAKE) -C kernel O=../$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) INSTALL_MOD_STRIP=1 ARCH=arm CROSS_COMPILE=arm-eabi- modules_install
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$(mv-modules)
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$(clean-module-folder)
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$(append-dtb)
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$(KERNEL_HEADERS_INSTALL): $(KERNEL_OUT) $(KERNEL_CONFIG)
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$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- headers_install
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kerneltags: $(KERNEL_OUT) $(KERNEL_CONFIG)
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$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- tags
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kernelconfig: $(KERNEL_OUT) $(KERNEL_CONFIG)
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env KCONFIG_NOTIMESTAMP=true \
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$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- menuconfig
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env KCONFIG_NOTIMESTAMP=true \
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$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- savedefconfig
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cp $(KERNEL_OUT)/defconfig kernel/arch/arm/configs/$(KERNEL_DEFCONFIG)
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endif
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