diff options
Diffstat (limited to 'AndroidKernel.mk')
| -rw-r--r-- | AndroidKernel.mk | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/AndroidKernel.mk b/AndroidKernel.mk new file mode 100644 index 00000000000..58aedd48cbb --- /dev/null +++ b/AndroidKernel.mk @@ -0,0 +1,104 @@ +#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 +TARGET_PREBUILT_INT_DTB := $(KERNEL_OUT)/arch/arm/boot/dts/omap3-minnow.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 := $(TARGET_PREBUILT_KERNEL) + +ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true) +$(info Using uncompressed kernel) +TARGET_PREBUILT_KERNEL := $(KERNEL_OUT)/piggy +else +TARGET_PREBUILT_KERNEL := $(TARGET_PREBUILT_INT_KERNEL) +endif +TARGET_PREBUILT_DTB := $(TARGET_PREBUILT_INT_DTB) + +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) $(PRODUCT_PREBUILT_KERNEL);\ +fi;\ +pdir=$(PRODUCT_PREBUILT_KERNEL);\ +pdir=$${pdir%$$(basename $$pdir)};\ +if [ -f $(TARGET_PREBUILT_INT_DTB) -a\ + -d $$pdir ]; then\ + cp -f $(TARGET_PREBUILT_INT_DTB) $$pdir;\ +fi +endef + +include $(KERNEL_SRCDIR)/defconfig.mk + +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) $(TARGET_DEFCONFIG) inst_hook + $(call do-kernel-config,$(KERNEL_OUT),$@,$(TARGET_DEFCONFIG),$(KERNEL_SRCDIR),arm,arm-eabi-,$(MAKE)) + +$(KERNEL_OUT)/piggy : $(TARGET_PREBUILT_INT_KERNEL) + $(hide) gunzip -c $(KERNEL_OUT)/arch/arm/boot/compressed/piggy.gzip > $(KERNEL_OUT)/piggy + +$(TARGET_PREBUILT_INT_DTB): $(KERNEL_OUT) $(KERNEL_CONFIG) $(KERNEL_HEADERS_INSTALL) + $(MAKE) -C $(KERNEL_SRCDIR) KBUILD_RELSRC=$(KERNEL_SOURCE_RELATIVE_PATH) O=$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- dtbs + +$(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- + $(MAKE) -C $(KERNEL_SRCDIR) KBUILD_RELSRC=$(KERNEL_SOURCE_RELATIVE_PATH) O=$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- modules + $(MAKE) -C $(KERNEL_SRCDIR) KBUILD_RELSRC=$(KERNEL_SOURCE_RELATIVE_PATH) O=$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) INSTALL_MOD_STRIP="--strip-debug --remove-section=.note.gnu.build-id" ARCH=arm CROSS_COMPILE=arm-eabi- modules_install + $(update-prebuilts) + $(mv-modules) + $(clean-module-folder) + +$(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 + env KCONFIG_NOTIMESTAMP=true \ + $(MAKE) -C $(KERNEL_SRCDIR) O=$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- savedefconfig + cp $(KERNEL_OUT)/defconfig kernel/arch/arm/configs/$(KERNEL_DEFCONFIG) + +endif |