系统定制添加属性到 build.prop

build.prop新增自定义属性值

build/core/product.mk中增加自定义属性值

_product_var_list := \
    PRODUCT_NAME \
    PRODUCT_MODEL \
    PRODUCT_LOCALES \
    PRODUCT_AAPT_CONFIG \

    ...

    # 新增的属性值如下
    PRODUCT_TARGET_NUMBER \
    PRODUCT_TARGET_VERSION \

build/core/Makefile下对新增属性值赋值

...

ifneq ($(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_OEM_PROPERTIES),)
    $(hide) echo "#" >> $@; \
            echo "# PRODUCT_OEM_PROPERTIES" >> $@; \
            echo "#" >> $@;
    $(hide) $(foreach prop,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_OEM_PROPERTIES), \
        echo "import /oem/oem.prop $(prop)" >> $@;)
endif
    $(hide) TARGET_BUILD_TYPE="$(TARGET_BUILD_VARIANT)" \
            TARGET_BUILD_FLAVOR="$(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)" \
            TARGET_DEVICE="$(TARGET_DEVICE)" \
            PRODUCT_NAME="$(TARGET_PRODUCT)" \
            PRODUCT_BRAND="$(PRODUCT_BRAND)" \

            ...

            # 新增属性赋值如下
            PRODUCT_TARGET_VERSION="$(PRODUCT_TARGET_VERSION)" \
            PRODUCT_TARGET_NUMBER="$(PRODUCT_TARGET_NUMBER)" \
            PRIVATE_BUILD_DESC="$(PRIVATE_BUILD_DESC)" \

在build/tools/buildinfo.sh脚本中添加写入脚本

...
echo "ro.product.model=$PRODUCT_MODEL"
echo "ro.product.brand=$PRODUCT_BRAND"
echo "ro.product.name=$PRODUCT_NAME"

# add new build.prop here by allies
echo "ro.product.number=$PRODUCT_TARGET_NUMBER"
echo "ro.product.version=$PRODUCT_TARGET_VERSION"

echo "ro.product.device=$TARGET_DEVICE"
...

BoardConfigCommon.mk中定义属性具体指

...
OTA_WITH_OPTEE = $(BOARD_OPTEEIMAGE)
OTA_WITH_ARMFW = $(BOARD_OPTEEIMAGE)

# add new item to build.prop by allies
PRODUCT_TARGET_NUMBER := E000000001
PRODUCT_TARGET_VERSION := 001

make installclean之后make查看设备指定system/build.prop文件内容是否发生改变

...
ro.build.flavor=aosp_makena_dtmb-userdebug
ro.product.model=MAKENA TV
ro.product.brand=Makena
ro.product.name=aosp_makena_dtmb
ro.product.number=E000000001
ro.product.version=001
ro.product.device=makena
...