03-Android_SDK编译

SDK介绍

内核版本：6.1

Android系统版本：14.0

获取SDK源码

1-SDK软件源码
├── Android14
    ├── rk3576-android14.0-*.md5sum
    └── rk3576-android14.0-*.tar.gz

*这里一般指代日期，下面同，实际名称以网盘为准

拷贝源码压缩包到编译主机目录
若编译主机为虚拟机，不可放在共享目录下编译
MD5校验文件完整性

md5sum rk3576-android14.0-*.tar.gz

判断结果和 rk3576-android14.0-*.md5sum 内容一致，则文件下载完整

解压源码压缩包

$ mkdir rk3576-android
$ tar -zxvf rk3576-android14.0-*.tar.gz -C rk3576-android/
$ cd rk3576-android/
$ git reset --hard

配置环境

单独编译或全部编译前先配置环境

$ ./build.sh lunch
will lunch sdk

You're building on Linux
Lunch menu...pick a combo:

1. rk3576
Which would you like? [0]: 1

You're building on Linux
Lunch menu...pick a combo:

1. BoardConfig.mk
2. BoardConfig-rk3576-kickpi-k7.mk
Which would you like? [0]: 2
switching to board: /home/huangcm/A/sdk/rk3576-android14.0/device/rockchip/rk3576/BoardConfig-rk3576-kickpi-k7.mk

全部编译

标准镜像

./build.sh -AUCKu

镜像 rockdev/Image-rk3576_u/update-rk3576-kickpi-k7-android-*.img

多屏识别镜像

$ ./build.sh -UCKAum

单独编译

单编Uboot

./build.sh -Uu

单编安卓

./build.sh -Au

单编kernel

./build.sh -CKu

配置 Kernel defconfig

./build.sh -M

其他说明

固件说明

完整编译后会生成如下文件：

(源码)/rockdev/Image-rk3576_u/
rockdev/Image-rk3576_u/
├── baseparameter.img
├── boot-debug.img
├── boot.img
├── config.cfg
├── dtbo.img
├── MiniLoaderAll.bin
├── misc.img
├── parameter.txt
├── pcba_small_misc.img
├── pcba_whole_misc.img
├── recovery.img
├── resource.img
├── super.img
├── uboot.img
├── update.img
├── update-rk3576-kickpi-k7-android-*.img
└── vbmeta.img

烧写的镜像为 (源码)/rockdev/Image-rk3576_u/update-rk3576-kickpi-k7-android-*.img

烧录详见 - 10-系统镜像烧录

多屏识别编译

$ ./build.sh -UCKAum

userdebug 和 user 编译

默认为userdebug模式编译，如果需要user版本镜像则需要修改对应编译mk

vim device/rockchip/rk3576/BoardConfig-rk3576-kickpi-k7.mk
-export BUILD_VARIANT=userdebug
+export BUILD_VARIANT=user

android 环境配置

配置环境，可以使用 mm / get_build_var 等安卓环境下命令

// 配置环境
source build/envsetup.sh
lunch rk3576_u-userdebug

// 比如
$ get_build_var PRODUCT_HAVE_RKPHONE_FEATURES
true

dts 路径

kernel-6.1/arch/arm64/boot/dts/rockchip/rk3576-kickpi-k7-android.dts

defconfig 路径

kernel-6.1/arch/arm64/configs/rockchip_defconfig

常见问题

由于代码位置变化，路径错误导致 android 编译错误

需要清除数据

source build/envsetup.sh
lunch rk3576_u-userdebug
make clean -j32

重新全部编译

编译空间不足

目前默认线程 -j32，通过降低线程数进行编译

方式一：

修改编译方式，带 -J 线程

如： 修改线程为16，-J16
./build.sh -AUCKu -J16

方式二：

修改默认线程

$ vim device/rockchip/common/build/rockchip/build.sh
-BUILD_JOBS=32
+BUILD_JOBS=16

Last updated 3 days ago

$ ./build.sh lunch will lunch sdk You're building on Linux Lunch menu...pick a combo: 1. rk3576 Which would you like? [0]: 1 You're building on Linux Lunch menu...pick a combo: 1. BoardConfig.mk 2. BoardConfig-rk3576-kickpi-k7.mk Which would you like? [0]: 2 switching to board: /home/huangcm/A/sdk/rk3576-android14.0/device/rockchip/rk3576/BoardConfig-rk3576-kickpi-k7.mk

(源码)/rockdev/Image-rk3576_u/ rockdev/Image-rk3576_u/ ├── baseparameter.img ├── boot-debug.img ├── boot.img ├── config.cfg ├── dtbo.img ├── MiniLoaderAll.bin ├── misc.img ├── parameter.txt ├── pcba_small_misc.img ├── pcba_whole_misc.img ├── recovery.img ├── resource.img ├── super.img ├── uboot.img ├── update.img ├── update-rk3576-kickpi-k7-android-*.img └── vbmeta.img