AOSP Android13 新增Product实践

1. 在device目录新建下面目录hht\hht_x86_64,其中hht代表公司、hht_x86_64代表某台设备,即device/<vendor>/<TARGET_DEVICE>。

2. 在hht_x86_64目录下，分别创建AndroidProducts.mk、BoardConfig.mk、hht_x86_64.mk文件。

3. 由于直接要在PC上通过emulator运行，所以拷贝device\generic\goldfish\pc\sdk_pc_x86_64.mk内容到hht_x86_64.mk。

   修改PRODUCT_DEVICE与第1步创建的<TARGET_DEVICE>名称一致，即hht_x86_64，其他三个属性随意。修改后文件：

   #
   # Copyright (C) 2021 The Android Open Source Project
   #
   # Licensed under the Apache License, Version 2.0 (the "License");
   # you may not use this file except in compliance with the License.
   # You may obtain a copy of the License at
   #
   #      http://www.apache.org/licenses/LICENSE-2.0
   #
   # Unless required by applicable law or agreed to in writing, software
   # distributed under the License is distributed on an "AS IS" BASIS,
   # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   # See the License for the specific language governing permissions and
   # limitations under the License.
   
   PRODUCT_COPY_FILES += device/generic/goldfish/pc/config.ini.pc:config.ini
   
   $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_x86_64.mk)
   
   PRODUCT_NAME := HHT Edu Phone
   PRODUCT_DEVICE := hht_x86_64
   PRODUCT_BRAND := HHT
   PRODUCT_MODEL :=  1st
   PRODUCT_PACKAGE_OVERLAYS := device/generic/goldfish/pc/overlay
   PRODUCT_COPY_FILES += \
       device/generic/goldfish/pc/data/etc/pc.xml:$(TARGET_COPY_OUT_VENDOR)/etc/permissions/pc.xml
   PRODUCT_SDK_ADDON_SYS_IMG_SOURCE_PROP := device/generic/goldfish/pc/images_source.prop_template

   由于要在pc上直接运行emulator，所以参考sdk_pc_x86_64.mk文件内容，其中sdk表示生成文件带userdata.img等文件，可以通过emulator执行。如果是aosp,生成标准系统GSI,不带userdata.img,无法直接通过emulator运行。

   通过下面命令查找目标配置文件：

   # 进入源码根目录，查找该文件
   find . -type f -name "sdk_pc_x86_64.mk"

4. 将build\make\target\board\generic_x86_64\BoardConfig.mk拷贝到BoardConfig.mk。无需修改。

5. AndroidProduct.mk添加如下内容。

   PRODUCT_MAKEFILES := \
       $(LOCAL_DIR)/hht_x86_64.mk
   
   COMMON_LUNCH_CHOICES := \
       hht_x86_64-eng \
       hht_x86_64-userdebug \
       hht_x86_64-user

6. 重新编译

   source build/envsetup.mk
   lunch
   #得到下面选项
   lunch 62
   #编译等到结果
   make -j24

   

备注：

新产品的添加更多是参考现有配置文件，然后参考修改，且修改内容不多。例如可能在PC运行automatic，而现有产品，lunch menu不存在。