Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add and include local AndroidKernel.mk for integrated kernel building
B2G doesn't have this
- Loading branch information
Daz Jones
committed
Jan 30, 2013
1 parent
3f81554
commit 2a8b4ce
Showing
2 changed files
with
165 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,163 @@ | ||
| #Android makefile to build kernel as a part of Android Build | ||
|
|
||
| TARGET_AUTO_KDIR := $(shell echo $(TARGET_DEVICE_DIR) | sed -e 's/^device/kernel/g') | ||
|
|
||
| ## Externally influenced variables | ||
| # kernel location - optional, defaults to kernel/<vendor>/<device> | ||
| TARGET_KERNEL_SOURCE ?= $(TARGET_AUTO_KDIR) | ||
| KERNEL_SRC := $(TARGET_KERNEL_SOURCE) | ||
| # kernel configuration - mandatory | ||
| KERNEL_DEFCONFIG := $(TARGET_KERNEL_CONFIG) | ||
|
|
||
| ## Internal variables | ||
| KERNEL_OUT := $(ANDROID_BUILD_TOP)/$(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ | ||
| KERNEL_CONFIG := $(KERNEL_OUT)/.config | ||
|
|
||
| ifeq ($(BOARD_USES_UBOOT),true) | ||
| TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/$(TARGET_ARCH)/boot/uImage | ||
| TARGET_PREBUILT_INT_KERNEL_TYPE := uImage | ||
| else ifeq ($(BOARD_USES_UNCOMPRESSED_BOOT),true) | ||
| TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/$(TARGET_ARCH)/boot/Image | ||
| TARGET_PREBUILT_INT_KERNEL_TYPE := Image | ||
| else | ||
| TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/$(TARGET_ARCH)/boot/zImage | ||
| TARGET_PREBUILT_INT_KERNEL_TYPE := zImage | ||
| endif | ||
|
|
||
| ifeq "$(wildcard $(KERNEL_SRC) )" "" | ||
| ifneq ($(TARGET_PREBUILT_KERNEL),) | ||
| HAS_PREBUILT_KERNEL := true | ||
| NEEDS_KERNEL_COPY := true | ||
| else | ||
| $(foreach cf,$(PRODUCT_COPY_FILES), \ | ||
| $(eval _src := $(call word-colon,1,$(cf))) \ | ||
| $(eval _dest := $(call word-colon,2,$(cf))) \ | ||
| $(ifeq kernel,$(_dest), \ | ||
| $(eval HAS_PREBUILT_KERNEL := true))) | ||
| endif | ||
|
|
||
| ifneq ($(HAS_PREBUILT_KERNEL),) | ||
| $(warning ***************************************************************) | ||
| $(warning * Using prebuilt kernel binary instead of source *) | ||
| $(warning * THIS IS DEPRECATED, AND WILL BE DISCONTINUED *) | ||
| $(warning * Please configure your device to download the kernel *) | ||
| $(warning * source repository to $(KERNEL_SRC)) | ||
| $(warning * See http://wiki.cyanogenmod.com/wiki/Integrated_kernel_building) | ||
| $(warning * for more information *) | ||
| $(warning ***************************************************************) | ||
| FULL_KERNEL_BUILD := false | ||
| KERNEL_BIN := $(TARGET_PREBUILT_KERNEL) | ||
| else | ||
| $(warning ***************************************************************) | ||
| $(warning * *) | ||
| $(warning * No kernel source found, and no fallback prebuilt defined. *) | ||
| $(warning * Please make sure your device is properly configured to *) | ||
| $(warning * download the kernel repository to $(KERNEL_SRC)) | ||
| $(warning * and add the TARGET_KERNEL_CONFIG variable to BoardConfig.mk *) | ||
| $(warning * *) | ||
| $(warning * As an alternative, define the TARGET_PREBUILT_KERNEL *) | ||
| $(warning * variable with the path to the prebuilt binary kernel image *) | ||
| $(warning * in your BoardConfig.mk file *) | ||
| $(warning * *) | ||
| $(warning ***************************************************************) | ||
| $(error "NO KERNEL") | ||
| endif | ||
| else | ||
| NEEDS_KERNEL_COPY := true | ||
| ifeq ($(TARGET_KERNEL_CONFIG),) | ||
| $(warning **********************************************************) | ||
| $(warning * Kernel source found, but no configuration was defined *) | ||
| $(warning * Please add the TARGET_KERNEL_CONFIG variable to your *) | ||
| $(warning * BoardConfig.mk file *) | ||
| $(warning **********************************************************) | ||
| # $(error "NO KERNEL CONFIG") | ||
| else | ||
| #$(info Kernel source found, building it) | ||
| FULL_KERNEL_BUILD := true | ||
| ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true) | ||
| $(info Using uncompressed kernel) | ||
| KERNEL_BIN := $(KERNEL_OUT)/piggy | ||
| else | ||
| KERNEL_BIN := $(TARGET_PREBUILT_INT_KERNEL) | ||
| endif | ||
| endif | ||
| endif | ||
|
|
||
| ifeq ($(FULL_KERNEL_BUILD),true) | ||
|
|
||
| KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr | ||
| KERNEL_MODULES_INSTALL := system | ||
| KERNEL_MODULES_OUT := $(TARGET_OUT)/lib/modules | ||
|
|
||
| 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 | ||
|
|
||
| ifeq ($(TARGET_ARCH),arm) | ||
| ifneq ($(USE_CCACHE),) | ||
| ccache := $(ANDROID_BUILD_TOP)/prebuilt/$(HOST_PREBUILT_TAG)/ccache/ccache | ||
| # Check that the executable is here. | ||
| ccache := $(strip $(wildcard $(ccache))) | ||
| endif | ||
| ifeq ($(HOST_OS),darwin) | ||
| ARM_CROSS_COMPILE:=CROSS_COMPILE="$(ccache) $(ANDROID_BUILD_TOP)/prebuilt/darwin-x86/toolchain/arm-eabi-4.4.3/bin/arm-eabi-" | ||
| else | ||
| ARM_CROSS_COMPILE:=CROSS_COMPILE="$(ccache) $(ARM_EABI_TOOLCHAIN)/arm-eabi-" | ||
| endif | ||
| ccache = | ||
| endif | ||
|
|
||
| ifeq ($(TARGET_KERNEL_MODULES),) | ||
| TARGET_KERNEL_MODULES := no-external-modules | ||
| endif | ||
|
|
||
| $(KERNEL_OUT): | ||
| mkdir -p $(KERNEL_OUT) | ||
| mkdir -p $(KERNEL_MODULES_OUT) | ||
|
|
||
| $(KERNEL_CONFIG): $(KERNEL_OUT) | ||
| $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(TARGET_ARCH) $(ARM_CROSS_COMPILE) $(KERNEL_DEFCONFIG) | ||
|
|
||
| $(KERNEL_OUT)/piggy : $(TARGET_PREBUILT_INT_KERNEL) | ||
| $(hide) gunzip -c $(KERNEL_OUT)/arch/$(TARGET_ARCH)/boot/compressed/piggy.gzip > $(KERNEL_OUT)/piggy | ||
|
|
||
| TARGET_KERNEL_BINARIES: $(KERNEL_OUT) $(KERNEL_CONFIG) $(KERNEL_HEADERS_INSTALL) | ||
| $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(TARGET_ARCH) $(ARM_CROSS_COMPILE) $(TARGET_PREBUILT_INT_KERNEL_TYPE) | ||
| $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(TARGET_ARCH) $(ARM_CROSS_COMPILE) modules | ||
| $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) ARCH=$(TARGET_ARCH) $(ARM_CROSS_COMPILE) modules_install | ||
| $(mv-modules) | ||
| $(clean-module-folder) | ||
|
|
||
| $(TARGET_KERNEL_MODULES): TARGET_KERNEL_BINARIES | ||
|
|
||
| $(TARGET_PREBUILT_INT_KERNEL): $(TARGET_KERNEL_MODULES) | ||
| $(mv-modules) | ||
| $(clean-module-folder) | ||
|
|
||
| $(KERNEL_HEADERS_INSTALL): $(KERNEL_OUT) $(KERNEL_CONFIG) | ||
| $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(TARGET_ARCH) $(ARM_CROSS_COMPILE) headers_install | ||
|
|
||
| endif # FULL_KERNEL_BUILD | ||
|
|
||
| ## Install it | ||
|
|
||
| ifeq ($(NEEDS_KERNEL_COPY),true) | ||
| file := $(INSTALLED_KERNEL_TARGET) | ||
| ALL_PREBUILT += $(file) | ||
| $(file) : $(KERNEL_BIN) | $(ACP) | ||
| $(transform-prebuilt-to-target) | ||
|
|
||
| ALL_PREBUILT += $(INSTALLED_KERNEL_TARGET) | ||
| endif |