| #Android makefile to build kernel as a part of Android Build |
| |
| KERNEL_TARGET := $(strip $(INSTALLED_KERNEL_TARGET)) |
| ifeq ($(KERNEL_TARGET),) |
| INSTALLED_KERNEL_TARGET := $(PRODUCT_OUT)/kernel |
| endif |
| |
| ifeq ($(TARGET_PREBUILT_KERNEL),) |
| |
| KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ |
| KERNEL_CONFIG := $(KERNEL_OUT)/.config |
| ifeq ($(TARGET_KERNEL_APPEND_DTB), true) |
| TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/arm/boot/zImage-dtb |
| else |
| TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/arm/boot/zImage |
| endif |
| 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 |
| |
| #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 $$arch;' $(KERNEL_CONFIG)) |
| #KERNEL_USE_OF ?= $(shell $(PERL) -e '$$of = "n"; while (<>) { if (/CONFIG_USE_OF=y/) { $$of = "y"; break; } } print $$of;' $(TARGET_KERNEL_SOURCE)/arch/arm/configs/$(KERNEL_DEFCONFIG)) |
| |
| #ifeq "$(KERNEL_USE_OF)" "y" |
| |
| DTS_FILES = $(wildcard $(TOP)/$(TARGET_KERNEL_SOURCE)/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 DTS_NAME, $(DTS_NAMES), \ |
| $(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 |
| |
| TARGET_KERNEL_CLANG_PATH ?= $(BUILD_TOP)/prebuilts/clang/host/$(HOST_OS)-x86/$(KERNEL_CLANG_VERSION) |
| PATH_OVERRIDE := PATH=$(TARGET_KERNEL_CLANG_PATH)/bin:$$PATH LD_LIBRARY_PATH=$(TARGET_KERNEL_CLANG_PATH)/lib64:$$LD_LIBRARY_PATH |
| |
| PATH_OVERRIDE += PATH=$(KERNEL_TOOLCHAIN_PATH_gcc)/bin:$$PATH |
| |
| # System tools are no longer allowed on 10+ |
| PATH_OVERRIDE += $(TOOLS_PATH_OVERRIDE) |
| |
| $(KERNEL_OUT): |
| mkdir -p $(KERNEL_OUT) |
| |
| $(KERNEL_CONFIG): $(KERNEL_OUT) |
| $(PATH_OVERRIDE) $(KERNEL_MAKE_CMD) $(KERNEL_MAKE_FLAGS) -C $(TARGET_KERNEL_SOURCE) O=../../$(KERNEL_OUT) ARCH=arm $(KERNEL_CROSS_COMPILE) $(KERNEL_CLANG_TRIPLE) $(KERNEL_CC) $(KERNEL_LD) $(KERNEL_DEFCONFIG) |
| |
| $(KERNEL_OUT)/piggy : $(TARGET_PREBUILT_INT_KERNEL) |
| $(hide) gunzip -c $(KERNEL_OUT)/arch/arm/boot/compressed/piggy.gzip > $(KERNEL_OUT)/piggy |
| |
| $(TARGET_PREBUILT_INT_KERNEL): $(KERNEL_OUT) $(KERNEL_CONFIG) $(KERNEL_HEADERS_INSTALL) |
| $(PATH_OVERRIDE) $(KERNEL_MAKE_CMD) $(KERNEL_MAKE_FLAGS) -C $(TARGET_KERNEL_SOURCE) O=../../$(KERNEL_OUT) ARCH=arm $(KERNEL_CROSS_COMPILE) $(KERNEL_CLANG_TRIPLE) $(KERNEL_CC) $(KERNEL_LD) |
| $(PATH_OVERRIDE) $(KERNEL_MAKE_CMD) $(KERNEL_MAKE_FLAGS) -C $(TARGET_KERNEL_SOURCE) O=../../$(KERNEL_OUT) ARCH=arm $(KERNEL_CROSS_COMPILE) $(KERNEL_CLANG_TRIPLE) $(KERNEL_CC) $(KERNEL_LD) modules |
| $(PATH_OVERRIDE) $(KERNEL_MAKE_CMD) $(KERNEL_MAKE_FLAGS) -C $(TARGET_KERNEL_SOURCE) O=../../$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) INSTALL_MOD_STRIP=1 ARCH=arm $(KERNEL_CROSS_COMPILE) $(KERNEL_CLANG_TRIPLE) $(KERNEL_CC) $(KERNEL_LD) modules_install |
| $(mv-modules) |
| $(clean-module-folder) |
| $(append-dtb) |
| |
| $(KERNEL_HEADERS_INSTALL): $(KERNEL_OUT) $(KERNEL_CONFIG) |
| $(PATH_OVERRIDE) $(KERNEL_MAKE_CMD) $(KERNEL_MAKE_FLAGS) -C $(TARGET_KERNEL_SOURCE) O=../../$(KERNEL_OUT) ARCH=arm $(KERNEL_CROSS_COMPILE) $(KERNEL_CLANG_TRIPLE) $(KERNEL_CC) $(KERNEL_LD) headers_install |
| |
| .PHONY: kerneltags |
| kerneltags: $(KERNEL_OUT) $(KERNEL_CONFIG) |
| $(PATH_OVERRIDE) $(KERNEL_MAKE_CMD) $(KERNEL_MAKE_FLAGS) -C $(TARGET_KERNEL_SOURCE) O=../../$(KERNEL_OUT) ARCH=arm $(KERNEL_CROSS_COMPILE) $(KERNEL_CLANG_TRIPLE) $(KERNEL_CC) $(KERNEL_LD) tags |
| |
| .PHONY: kernelconfig |
| kernelconfig: $(KERNEL_OUT) $(KERNEL_CONFIG) |
| env KCONFIG_NOTIMESTAMP=true \ |
| $(PATH_OVERRIDE) $(KERNEL_MAKE_CMD) $(KERNEL_MAKE_FLAGS) -C $(TARGET_KERNEL_SOURCE) O=../../$(KERNEL_OUT) ARCH=arm $(KERNEL_CROSS_COMPILE) $(KERNEL_CLANG_TRIPLE) $(KERNEL_CC) $(KERNEL_LD) menuconfig |
| env KCONFIG_NOTIMESTAMP=true \ |
| $(PATH_OVERRIDE) $(KERNEL_MAKE_CMD) $(KERNEL_MAKE_FLAGS) -C $(TARGET_KERNEL_SOURCE) O=../../$(KERNEL_OUT) ARCH=arm $(KERNEL_CROSS_COMPILE) $(KERNEL_CLANG_TRIPLE) $(KERNEL_CC) $(KERNEL_LD) savedefconfig |
| cp $(KERNEL_OUT)/defconfig $(TARGET_KERNEL_SOURCE)/arch/arm/configs/$(KERNEL_DEFCONFIG) |
| |
| #endif |