| #Android makefile to build kernel as a part of Android Build |
| ifneq ($(BUILD_KERNEL),) |
| |
| KERNEL_SRCDIR := kernel/omap-moto-cw |
| KERNEL_OUT := $(ANDROID_PRODUCT_OUT)/obj/KERNEL_OBJ |
| KERNEL_CONFIG := $(KERNEL_OUT)/.config |
| TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/arm/boot/zImage-dtb |
| 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 |
| # relative path from KERNEL_OUT to kernel source directory |
| KERNEL_SOURCE_RELATIVE_PATH := ../../../../../../$(KERNEL_SRCDIR) |
| PRODUCT_PREBUILT_KERNEL := $(TARGET_PREBUILT_KERNEL) |
| |
| # Add 4.8 arm-eabi to PATH if gcc can't be found |
| GCC_FOUND := $(shell (which $(KERNEL_CROSS_COMPILE)gcc)2>&1 ; echo $$?) |
| ifneq ($(strip $(GCC_FOUND)),0) |
| ifneq ($(HOST_OS),) |
| PATH := $(PATH):$(ANDROID_BUILD_TOP)/prebuilts/gcc/$(HOST_OS)-x86/arm/arm-eabi-4.8/bin/ |
| endif |
| endif |
| |
| ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true) |
| $(error TARGET_USES_UNCOMPRESSED_KERNEL is not supported) |
| else |
| TARGET_PREBUILT_KERNEL := $(TARGET_PREBUILT_INT_KERNEL) |
| endif |
| |
| # use eng_ defconfig for engineering Android variants |
| ifeq ($(TARGET_BUILD_VARIANT), eng) |
| KERNEL_DEFCONFIG := eng_${KERNEL_DEFCONFIG} |
| endif |
| SOURCE_DEFCONFIG := $(KERNEL_SRCDIR)/arch/arm/configs/$(KERNEL_DEFCONFIG) |
| |
| define mv-modules |
| mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.order`;\ |
| if [ "$$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.order`;\ |
| if [ "$$mdpath" != "" ];then\ |
| mpath=`dirname $$mdpath`; rm -rf $$mpath;\ |
| fi |
| endef |
| |
| define update-prebuilts |
| if [ -f $(TARGET_PREBUILT_INT_KERNEL) -a\ |
| -f $(PRODUCT_PREBUILT_KERNEL) ]; then\ |
| cp -f $(TARGET_PREBUILT_INT_KERNEL) $(PRODUCT_PREBUILT_KERNEL);\ |
| fi; |
| endef |
| |
| define do-kernel-config |
| ( cp $(3) $(2) && $(7) -C $(4) O=$(1) ARCH=$(5) CROSS_COMPILE=$(6) oldconfig ) || ( rm -f $(2) && false ) |
| endef |
| |
| GIT_HOOKS_DIR := $(KERNEL_SRCDIR)/.git/hooks |
| inst_hook: $(GIT_HOOKS_DIR)/pre-commit $(GIT_HOOKS_DIR)/checkpatch.pl |
| |
| $(GIT_HOOKS_DIR)/pre-commit: $(KERNEL_SRCDIR)/scripts/pre-commit |
| @-cp -f $< $@ |
| @-chmod ugo+x $@ |
| |
| $(GIT_HOOKS_DIR)/checkpatch.pl: $(KERNEL_SRCDIR)/scripts/checkpatch.pl |
| @-cp -f $< $@ |
| @-chmod ugo+x $@ |
| |
| $(KERNEL_OUT): |
| mkdir -p $(KERNEL_OUT) |
| |
| $(KERNEL_CONFIG): $(KERNEL_OUT) $(SOURCE_DEFCONFIG) inst_hook |
| $(call do-kernel-config,$(KERNEL_OUT),$@,$(SOURCE_DEFCONFIG),$(KERNEL_SRCDIR),arm,arm-eabi-,$(MAKE)) |
| |
| $(TARGET_PREBUILT_INT_KERNEL): $(KERNEL_OUT) $(KERNEL_CONFIG) $(KERNEL_HEADERS_INSTALL) $(TARGET_PREBUILT_INT_DTB) |
| $(MAKE) -C $(KERNEL_SRCDIR) KBUILD_RELSRC=$(KERNEL_SOURCE_RELATIVE_PATH) O=$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- |
| $(update-prebuilts) |
| |
| $(KERNEL_HEADERS_INSTALL): $(KERNEL_OUT) $(KERNEL_CONFIG) |
| $(MAKE) -C $(KERNEL_SRCDIR) O=$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- headers_install |
| |
| kerneltags: $(KERNEL_OUT) $(KERNEL_CONFIG) |
| $(MAKE) -C $(KERNEL_SRCDIR) O=$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- tags |
| |
| kernelconfig: $(KERNEL_OUT) $(KERNEL_CONFIG) |
| env KCONFIG_NOTIMESTAMP=true \ |
| $(MAKE) -C $(KERNEL_SRCDIR) O=$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- menuconfig |
| cp $(KERNEL_OUT)/.config $(SOURCE_DEFCONFIG) |
| |
| endif |
