配置新的product（譯）——android編譯系統

 

轉自：http://www.diybl.com/course/3_program/java/android/20110909/560268.html

http://www.kandroid.org/online-pdk/guide/release_keys.html

配置新的product

細節介紹
以下步驟描述了怎麼樣去為新的手機裝置和其他運行android的裝置配置makefile

1. 建立一個公司的目錄device/vendor

mkdir    vendor/<company_name>

2. 建立一個products目錄

mkdir     vendor/<company_name>/products/

3. 建立一個專門配置product的makefile，叫vendor/ <company_name>/products/<first_product_name>.mk。這個檔案至少包括：

  $(call inherit-product, $(SRC_TARGET_DIR)/product/generic.mk) 
  # # Overrides 
  PRODUCT_NAME := <first_product_name> 
  PRODUCT_DEVICE := <board_name>

4. 增加專門配置product的變數到上面的makefile中去（具體變數 見文章末）

5. 在product目錄下建立AndroidProducts.mk，這個mk檔案指明自己的product make檔案：

  # # 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 \

6. 在公司目錄下建立一個專門配置Board的目錄 他將包括一個makefile檔案，任何使用這個板的product都可訪問這個makefile

mkdir    vendor/<company_name>/<board_name>

7. 在上面建立的目錄下，建立BoardConfig.mk檔案

  # These definitions override the defaults in config/config.make for <board_name>
  # # TARGET_NO_BOOTLOADER := false # TARGET_HARDWARE_3D := false 
  # TARGET_USE_GENERIC_AUDIO := true

8. 如果你希望修改系統的屬性，就在<board_name>目錄下建立system.prop檔案

# 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

9. 在AndroidProducts.mk中增加<second_product_name>.mk的指標

  PRODUCT_MAKEFILES := \ $(LOCAL_DIR)/first_product_name.mk\                                                                $(LOCAL_DIR)/second_product_name.mk

10. 在vendor/<company_name>/<board_name>目錄下，必須包含一個Android.mk檔案，這個mk檔案至少包含以下內容：

  # make file for new hardware from # 
  LOCAL_PATH := $(call my-dir)

  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)
  LOCAL_PATH := vendor/<company_name>/<board_name>
  include $(CLEAR_VARS)

11. 為同一個board建立第二個product，建立第二個product-specific makefile 檔案，叫做<second_product_name>.mk。這個檔案包含：

$(call inherit-product, $(SRC_TARGET_DIR)/product/generic.mk) # # Overrides PRODUCT_NAME := <second_product_name> PRODUCT_DEVICE := <board_name>

到現在為止，你應該有兩個新的product了，叫做<first_product_name>和<second_product_name>，為了確認這個product正確配置，執行一下語句：
 
. build/envsetup.sh
make PRODUCT-<first_product_name>-user

你應該在/out/target/product/<board_name>下找到新的二進位檔案

新product檔案樹

• <company_name>
  • <board_name>
    • Android.mk
    • product_config.mk
    • system.prop
  • products
    • AndroidProducts.mk
    • <first_product_name>.mk
    • <second_product_name>.mk

product定義檔案

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_LOCALES	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_MANUFACTURER	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 product

下面的程式碼片段介紹了一個典型的product定義檔案
$(call inherit-product, build/target/product/generic.mk) 
PRODUCT_NAME := MyDevice 
PRODUCT_MANUFACTURER := acme 
PRODUCT_BRAND := acme_us 
PRODUCT_LOCALES := en_GB es_ES fr_FR 
PRODUCT_PACKAGE_OVERLAYS := vendor/acme/overlay