4. Compile Android10.0¶
4.1. Download Android SDK¶
Due to the larger SDK, you can choose the cloud disk to download Firefly-RK3399_Android10.0_git_20211222.7z from the download page :
Note: the source code and bundle are stored in the Google Driver
After downloading, verify the MD5 code:
$ md5sum /path/to/Firefly-RK3399_Android10.0_git_20211222.7z.001
$ md5sum /path/to/Firefly-RK3399_Android10.0_git_20211222.7z.002
$ md5sum /path/to/Firefly-RK3399_Android10.0_git_20211222.7z.003
$ md5sum /path/to/Firefly-RK3399_Android10.0_git_20211222.7z.004
$ md5sum /path/to/Firefly-RK3399_Android10.0_git_20211222.7z.005
fb41fcdc48b1cf90ecac4a5bb8fafc7a Firefly-RK3399_Android10.0_git_20211222.7z.001
82d665fb54fb41245d9317312e7b7578 Firefly-RK3399_Android10.0_git_20211222.7z.002
0dd40827976200a6fb61623c9e87fe7c Firefly-RK3399_Android10.0_git_20211222.7z.003
32324c3afe615394ee4cdf842c53ea8d Firefly-RK3399_Android10.0_git_20211222.7z.004
9b1656ae07b4fe9ddf7d9ef2dfa2f95a Firefly-RK3399_Android10.0_git_20211222.7z.005
After confirming that it is correct, you can unzip:
cd ~/proj/
7z x ./Firefly-RK3399_Android10.0_git_20211222.7z.001 -ork3399_Android10.0
cd ./rk3399_Android10.0
git reset --hard
Note: Be sure to update the remote warehouse after decompression. The following is how to update from gitlab:
1. Enter the SDK root directory
cd ~/proj/rk3399_Android10.0
2. Download remote bundle repository
git clone https://gitlab.com/TeeFirefly/rk3399-android10.0-bundle.git .bundle
3. If the download warehouse fails, the current bundle warehouse is about 1.4G, so there may be stuck or failed problems during synchronization. You can download and unzip it from the cloud disk link below to the SDK root directory.
7z x rk3399-android10.0-bundle.7z -r -o. && mv rk3399-android10.0-bundle/ .bundle/
4. Update the SDK, and subsequent updates do not need to pull the remote warehouse again, just execute the following command
.bundle/update
5. Follow the prompts to update the content to FETCH_HEAD, synchronize FETCH_HEAD to the firefly branch
git rebase FETCH_HEAD
4.2. AIO-3399C product compilation method¶
4.2.2. Compile step by step AIO-3399C¶
Before compiling, execute the following command to configure environment variables:
source ./FFTools/build.sh
Compile kernel:
cd ~/proj/AIO-3399C/kernel/
make ARCH=arm64 firefly_defconfig android-10.config rk3399.config
AI version: make ARCH=arm64 BOOT_IMG=../rockdev/Image-rk3399_firefly_aioc_ai/boot.img rk3399-firefly-aioc-ai.img -j8
Compile uboot:
cd ~/proj/AIO-3399C/u-boot/
./make.sh rk3399
Compile Android:
cd ~/proj/AIO-3399C/
AI version: lunch rk3399_firefly_aioc_ai-userdebug
make -j8
./mkimage.sh
4.2.3. Packaged into unified firmware¶
After compilation, you can use Firefly official scripts to package into unified firmware, execute the following command：
AI version:./FFTools/mkupdate/mkupdate.sh -l rk3399_firefly_aioc_ai-userdebug
According to different -l XXX-userdebug parameters, the packaged unified firmware will be stored in different directories (rockdev/image-XXX/): product name XXX_XXX_date XXX.img
It is also very simple to package the unified firmware update.img under Windows. Copy the generated files to the rockdev \ Image directory of AndroidTool, and then run the mkupdate.bat batch file under the rockdev directory to create update.img and store it in rockdev \ Image directory.
4.2.4. Some Introduction about Compiling¶
4.2.4.1. Android 10.0 can’t be written directly kernel.img and resource.img¶
Android 10.0 kernel.img and resource.img Included in boot.img After the kernel is updated and compiled, it needs to be executed in the Android root directory mkimage.sh Repackage boot.img .After packing, download boot.img in rockdev directory .You can compile the kernel separately by using the following instruction.
4.2.4.2. Compiling kernel generation separately boot.img¶
Principle of compilation: in the kernel directory, the generated kernel.img And resource.img Replace with old boot.img So you need to use boot when compiling IMG = XXX parameter specification boot.img The command is as follows:
cd kernel
make ARCH=arm64 firefly_defconfig android-10.config
AI version: make ARCH=arm64 BOOT_IMG=../rockdev/Image-rk3399_firefly_aioc_ai/boot.img rk3399-firefly-aioc-ai.img -j24
After compiling, you can directly download the boot.img To the machine.
4.2.5. Partition image¶
boot.img include ramdis、kernel、dtb
dtbo.img Device Tree Overlays
kernel.img Currently, it cannot be burned separately, it needs to be packaged into boot.img to burn and write
MiniLoaderAll.bin include first loader
misc.img include recovery-wipe boot flag information ，enter recovery afte v
odm.img include android odm，included in super.img partition ,upgrade alone by the fastboot tool
parameter.txt include partition information
pcba_small_misc.img include pcba boot flag information，enter the simple pcba mode after upgrade
pcba_whole_misc.img include pcba boot flag information，enter the full pcba mode after upgrade
recovery.img include recovery-ramdis、kernel、dtb
resource.img include dtb，kernel and uboot phases log and the uboot charging logo,it should be packed into boot.img,then upgrade it
super.img include odm、vendor、system partition content
system.img include android system，included in super.img partition ,upgrade alone by the fastboot tool
trust.img include BL31、BL32
uboot.img include uboot.img
vbmeta.img include avb，for AVB verify
vendor.img 包含android vendor，included in super.img partition ,upgrade alone by the fastboot tool
update.img include all the img file above，use tools to upgrade the whole firmware package
4.2.6. Flash Image¶
Reference: 《Flash Image》
4.3. Other Android versions¶
Main maintenance:
Support but not maintain: