Layer

Example

Description

Product

myProduct, myProduct_eu, myProduct_eu_fr, j2, sdk

产品层定义了一个产品的详细说明，包括编译的模块和配置。你可以基于一种特定的应用提供一种设备上的几种不同版本。例如，基于摄像技术。

Device

myDevice, myDevice_eu, myDevice_eu_lite

设备层代表了构建在设备上的物理层。例如，南美的可能包含QWERTY键盘而法国的可能包含AZERTY键盘。连接到设备层的典型外设。

Board

sardine, trout, goldfish

开发板层代表了一个产品的缩减版。当然你可以连接一些外设上去。

Arch

arm (arm5te) (arm6), x86, 68k

架构层描述了你目标系统的处理器架构

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1. %cd $Top
2. % . build/envsetup.sh
3. #pick a configuration using choosecombo
4. %choosecombo
5. %make –j4 PRODUCT-generic-user

%cd $Top % . build/envsetup.sh #pick a configuration using choosecombo %choosecombo %make –j4 PRODUCT-generic-user 

eng

This is the default flavor. A plain make is the same as make eng. 

Installs modules tagged with: eng, debug, user, and/or development. 

Installs non-APK modules that have no tags specified. 

Installs APKs according to the product definition files, in addition to tagged APKs. 

ro.secure=0 

ro.debuggable=1 

ro.kernel.android.checkjni=1 

adb is enabled by default

user

make user 

This is the flavor intended to be the final release bits. 

Installs modules tagged with user. 

Installs non-APK modules that have no tags specified. 

Installs APKs according to the product definition files; tags are ignored for APK modules. 

ro.secure=1 

ro.debuggable=0 

adb is disabled by default. 

userdebug

make userdebug 

The same as user, except: 

Also installs modules tagged with debug. 

ro.debuggable=1 

adb is enabled by default. 

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1. # This file should set PRODUCT_MAKEFILES to a list of product makefiles
2. # to expose to the build system.  LOCAL_DIR will already be set to
3. # the directory containing this file.
4. #
5. # This file may not rely on the value of any variable other than
6. # LOCAL_DIR; do not use any conditionals, and do not look up the
7. # value of any variable that isn't set in this file or in a file that
8. # it includes.
9. PRODUCT_MAKEFILES := /
10. $(LOCAL_DIR)/first_product_name.mk /

# This file should set PRODUCT_MAKEFILES to a list of product makefiles # to expose to the build system. LOCAL_DIR will already be set to # the directory containing this file. # # This file may not rely on the value of any variable other than # LOCAL_DIR; do not use any conditionals, and do not look up the # value of any variable that isn't set in this file or in a file that # it includes. PRODUCT_MAKEFILES := / $(LOCAL_DIR)/first_product_name.mk /

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1. mkdir vendor/<company_name>/<board_name>
2. # These definitions override the defaults in config/config.make for <board_name>
3. # TARGET_NO_BOOTLOADER := false
4. TARGET_USE_GENERIC_AUDIO := true
5. # system.prop for
6. # This overrides settings in the products/generic/system.prop file
7. # rild.libpath=/system/lib/libreference-ril.so
8. # rild.libargs=-d /dev/ttyS0

mkdir vendor/<company_name>/<board_name> # These definitions override the defaults in config/config.make for <board_name> # TARGET_NO_BOOTLOADER := false TARGET_USE_GENERIC_AUDIO := true # system.prop for # This overrides settings in the products/generic/system.prop file # rild.libpath=/system/lib/libreference-ril.so # rild.libargs=-d /dev/ttyS0 

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1. PRODUCT_MAKEFILES := /
2. $(LOCAL_DIR)/first_product_name.mk /
3. $(LOCAL_DIR)/second_product_name.mk
4. # make file for new hardware  from
5. LOCAL_PATH := $(call my-dir)
6. # this is here to use the pre-built kernel
7. ifeq ($(TARGET_PREBUILT_KERNEL),)
8. TARGET_PREBUILT_KERNEL := $(LOCAL_PATH)/kernel
9. endif
10. file := $(INSTALLED_KERNEL_TARGET)
11. ALL_PREBUILT += $(file)
12. $(file): $(TARGET_PREBUILT_KERNEL) | $(ACP)
13. $(transform-prebuilt-to-target)
14. # no boot loader, so we don't need any of that stuff..
15. LOCAL_PATH := vendor/<company_name>/<board_name>
16. include $(CLEAR_VARS)
17. # include more board specific stuff here? Such as Audio parameters.

PRODUCT_MAKEFILES := / $(LOCAL_DIR)/first_product_name.mk / $(LOCAL_DIR)/second_product_name.mk # make file for new hardware from LOCAL_PATH := $(call my-dir) # this is here to use the pre-built kernel ifeq ($(TARGET_PREBUILT_KERNEL),) TARGET_PREBUILT_KERNEL := $(LOCAL_PATH)/kernel endif file := $(INSTALLED_KERNEL_TARGET) ALL_PREBUILT += $(file) $(file): $(TARGET_PREBUILT_KERNEL) | $(ACP) $(transform-prebuilt-to-target) # no boot loader, so we don't need any of that stuff.. LOCAL_PATH := vendor/<company_name>/<board_name> include $(CLEAR_VARS) # include more board specific stuff here? Such as Audio parameters.  

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1. $(call inherit-product, $(SRC_TARGET_DIR)/product/generic.mk)
2. #
3. # Overrides
4. PRODUCT_NAME := <second_product_name>
5. PRODUCT_DEVICE := <board_name>
6. build/envsetup.sh
7. make PRODUCT-<first_product_name>-user

$(call inherit-product, $(SRC_TARGET_DIR)/product/generic.mk) # # Overrides PRODUCT_NAME := <second_product_name> PRODUCT_DEVICE := <board_name> . build/envsetup.sh make PRODUCT-<first_product_name>-user 

Parameter

Description

Example

PRODUCT_NAME

End-user-visible name for the overall product. Appears in the "About the phone" info

PRODUCT_MODEL

End-user-visible name for the end product

PRODUCT_LOCALS

A space-separated list of two-letter language code, two-letter country code pairs that describe several settings for the user, such as the UI language and time, date and currency formatting. The first locale listed in PRODUCT_LOCALES is is used if the locale has never been set before.

en_GB de_DE es_ES fr_CA

PRODUCT_PACKAGES

Lists the APKs to install.

Calendar Contacts

PRODUCT_DEVICE

Name of the industrial design

dream

PRODUCT_MANUFACTUER

Name of the manufacturer

acme

PRODUCT_BRAND

The brand (e.g., carrier) the software is customized for, if any

PRODUCT_PROPERTY_OVERRIDES

List of property assignments in the format "key=value"

PRODUCT_COPY_FILES

List of words like source_path:destination_path. The file at the source path should be copied to the destination path when building this product. The rules for the copy steps are defined in config/Makefile

PRODUCT_OTA_PUBLIC_KEYS

List of OTA public keys for the product

PRODUCT_POLICY

Indicate which policy this product should use

PRODUCT_PACKAGE_OVERLAYS

Indicate whether to use default resources or add any product specific overlays

vendor/acme/overlay

PRODUCT_CONTRIBUTORS_FILE

HTML file containing the contributors to the project.

PRODUCT_TAGS

list of space-separated words for a given productb

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1. LOCAL_PATH := $(call my-dir)
2. include $(CLEAR_VARS)
3. # Build all java files in the java subdirectory
4. LOCAL_SRC_FILES := $(call all-subdir-java-files)
5. # Name of the APK to build
6. LOCAL_PACKAGE_NAME := LocalPackage
7. # Tell it to build an APK
8. include $(BUILD_PACKAGE)

LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) # Build all java files in the java subdirectory LOCAL_SRC_FILES := $(call all-subdir-java-files) # Name of the APK to build LOCAL_PACKAGE_NAME := LocalPackage # Tell it to build an APK include $(BUILD_PACKAGE) 

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1. LOCAL_PATH := $(call my-dir)
2. include $(CLEAR_VARS)
3. # Build all java files in the java subdirectory
4. LOCAL_SRC_FILES := $(call all-subdir-java-files)
5. # Name of the APK to build
6. LOCAL_PACKAGE_NAME := LocalPackage
7. LOCAL_CERTIFICATE := platform
8. # Tell it to build an APK
9. include $(BUILD_PACKAGE)

LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) # Build all java files in the java subdirectory LOCAL_SRC_FILES := $(call all-subdir-java-files) # Name of the APK to build LOCAL_PACKAGE_NAME := LocalPackage LOCAL_CERTIFICATE := platform # Tell it to build an APK include $(BUILD_PACKAGE) 

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1. LOCAL_PATH := $(call my-dir)
2. include $(CLEAR_VARS)
3. # Build all java files in the java subdirectory
4. LOCAL_SRC_FILES := $(call all-subdir-java-files)
5. # Name of the APK to build
6. LOCAL_PACKAGE_NAME := LocalPackage
7. LOCAL_CERTIFICATE := vendor/example/certs/app
8. # Tell it to build an APK
9. include $(BUILD_PACKAGE)

LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) # Build all java files in the java subdirectory LOCAL_SRC_FILES := $(call all-subdir-java-files) # Name of the APK to build LOCAL_PACKAGE_NAME := LocalPackage LOCAL_CERTIFICATE := vendor/example/certs/app # Tell it to build an APK include $(BUILD_PACKAGE) 

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1. LOCAL_PATH := $(call my-dir)
2. include $(CLEAR_VARS)
3. # Module name should match apk name to be installed.
4. LOCAL_MODULE := LocalModuleName
5. LOCAL_SRC_FILES := $(LOCAL_MODULE).apk
6. LOCAL_MODULE_CLASS := APPS
7. LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
8. include $(BUILD_PREBUILT)

LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) # Module name should match apk name to be installed. LOCAL_MODULE := LocalModuleName LOCAL_SRC_FILES := $(LOCAL_MODULE).apk LOCAL_MODULE_CLASS := APPS LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX) include $(BUILD_PREBUILT) 

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1. make -j4 PRODUCT-<product_name>-user dist
2. ./build/tools/releasetools/sign_target_files_apks -d vendor/<vendor_name>/security/<product_name> <product_name>-target_files.zip signed-target-files.zip
3. build/tools/releasetools/img_from_target_files signed-target-files.zip signed-img.zip
4. convert screen.jpg screen.r
5. Rgb2565 <sceen.rgb> screen.565

make -j4 PRODUCT-<product_name>-user dist ./build/tools/releasetools/sign_target_files_apks -d vendor/<vendor_name>/security/<product_name> <product_name>-target_files.zip signed-target-files.zip build/tools/releasetools/img_from_target_files signed-target-files.zip signed-img.zip convert screen.jpg screen.r Rgb2565 <sceen.rgb> screen.565