AOSP下載編譯並刷機最新分步驟詳解

我的環境

Ubuntu 18.04.5 LTS

清華源

https://mirrors.tuna.tsinghua.edu.cn/help/AOSP/

安裝repo, 3種方式

# 1. 無需安裝, 下載初始化包中自帶最好用

# 2. ubuntu apt-get
sudo apt-get install repo

# 3. 單獨腳本的方式(不推薦, 至少在我的電腦上, 會報一些python腳本兼容性錯誤, 手動改了又會遇到uncommit change錯誤)
mkdir ~/bin
PATH=~/bin:$PATH
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo

使用每月更新的初始化包

# 下載初始化包, 查看包列表 https://mirrors.tuna.tsinghua.edu.cn/aosp-monthly/, 由於最新包太大了, 我只需要Android-8.0的包
wget -c https://mirrors.tuna.tsinghua.edu.cn/aosp-monthly/aosp-20190101.tar
# 或下載最新包8-90G吧
wget -c https://mirrors.tuna.tsinghua.edu.cn/aosp-monthly/aosp-latest.tar
# 解壓得到的 AOSP 工程目錄
tar xf aosp-latest.tar
cd AOSP   
# 這時 ls 的話什么也看不到，因為只有一個隱藏的 .repo 目錄
# 正常同步一下,即可得到完整目錄
repo sync 
# 或 repo sync -l 僅checkout代碼(這種方式比較快,不會fetch最新的遠程倉庫,也就是如果我下載的是20190101.tar,則最新的修改就到這天,之后至今天的修改,不同步.)
# 如果不加 -l 選項, 則更新本地倉庫為最新上百G了.

查看分支列表

# 進入Repo目錄，查看所有分支
cd .repo/manifests
git branch -a

# 如果像我一樣使用repo sync -l選項同步, 會發現分支最新只到android-9.0

 切換到需要的目標分支

查看 https://source.android.com/setup/start/build-numbers#source-code-tags-and-builds 找到你想使用的分支, 這里我選擇 android-8.1.0_r35 , 原諒我手上只有一台Pixel 2. 所以要選擇支持我這台設備的分支, 為后續刷機作准備

# 切換分支
repo init -b android-8.1.0_r35

如果提示無法連接到 gerrit.googlesource.com，請參照git-repo的幫助頁面的更新一節。

環境配置

sudo apt-get update
sudo apt-get install openjdk-8-jdk

# 安裝必要程序包 (我就不裝)
sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev ccache libgl1-mesa-dev libxml2-utils xsltproc unzip

 

編譯

source build/envsetup.sh
lunch aosp_arm64-eng

# 若想查看所有lunch選項, 可以輸入lunch 回車

我們先編譯一個模擬器版的, 因為AOSP缺少vendor目錄, 即不包含實體設備的驅動

輸入2 回車, 接下來

make -j8
# 我的電腦是4核8線程的, 一次全編 它可以從早編到晚 ~~

不出意外會編譯成功. 看下輸出目錄, 會有各種img

ls $OUT

 編譯完成后可以運行模擬器看下效果

emulator

 

下一篇我們來刷ROM到實體手機

關於lunch構建目標

構建類型	說明
user	權限受限；適用於生產環境
userdebug	與“user”類似，但具有 root 權限和調試功能；是進行調試時的首選編譯類型
eng	具有額外調試工具的開發配置, 會關閉用於提供良好用戶體驗的各種優化

 

 

有意外發生 ~

 遇到的錯誤

# 報python語法錯誤
acer@acer-TravelMate-P249-G3-MG:~/aosp-test/aosp$ repo sync -l
Traceback (most recent call last):
  File "/home/acer/aosp-test/aosp/.repo/repo/git_config.py", line 198, in GetBranch
    b = self._branches[name]
KeyError: 'default'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/acer/aosp-test/aosp/.repo/repo/main.py", line 531, in <module>
    _Main(sys.argv[1:])
  File "/home/acer/aosp-test/aosp/.repo/repo/main.py", line 507, in _Main
    result = repo._Run(argv) or 0
  File "/home/acer/aosp-test/aosp/.repo/repo/main.py", line 158, in _Run
    copts, cargs = cmd.OptionParser.parse_args(argv)
  File "/home/acer/aosp-test/aosp/.repo/repo/command.py", line 67, in OptionParser
    self._Options(self._optparse)
  File "/home/acer/aosp-test/aosp/.repo/repo/subcmds/sync.py", line 189, in _Options
    self.jobs = self.manifest.default.sync_j
  File "/home/acer/aosp-test/aosp/.repo/repo/manifest_xml.py", line 360, in default
    self._Load()
  File "/home/acer/aosp-test/aosp/.repo/repo/manifest_xml.py", line 400, in _Load
    b = m.GetBranch(m.CurrentBranch).merge
  File "/home/acer/aosp-test/aosp/.repo/repo/project.py", line 814, in GetBranch
    return self.config.GetBranch(name)
  File "/home/acer/aosp-test/aosp/.repo/repo/git_config.py", line 200, in GetBranch
    b = Branch(self, name)
  File "/home/acer/aosp-test/aosp/.repo/repo/git_config.py", line 725, in __init__
    self.merge = self._Get('merge')
  File "/home/acer/aosp-test/aosp/.repo/repo/git_config.py", line 768, in _Get
    return self._config.GetString(key, all_keys = all_keys)
  File "/home/acer/aosp-test/aosp/.repo/repo/git_config.py", line 131, in GetString
    v = self._cache[_key(name)]
  File "/home/acer/aosp-test/aosp/.repo/repo/git_config.py", line 248, in _cache
    self._cache_dict = self._Read()
  File "/home/acer/aosp-test/aosp/.repo/repo/git_config.py", line 254, in _Read
    d = self._ReadGit()
  File "/home/acer/aosp-test/aosp/.repo/repo/git_config.py", line 299, in _ReadGit
    for line in d.decode('utf-8').rstrip('\0').split('\0'):  # pylint: disable=W1401
AttributeError: 'str' object has no attribute 'decode'

解決辦法: 試試用 .repo/repo/repo sync -l

 

# 遇到錯誤
[490/999] including ./hardware/qcom/keymaster/Android.mk ...
[491/999] including ./hardware/qcom/media/Android.mk ...
hardware/qcom/media/msm8998/mm-video-v4l2/vidc/venc/Android.mk:60: warning: "venc: PQ compiled out"
[492/999] including ./hardware/qcom/msm8998/Android.mk ...
including hardware/qcom/msm8998/gpt-utils/Android.mk ...
including hardware/qcom/msm8998/json-c/Android.mk ...
including hardware/qcom/msm8998/thermal-engine/Android.mk ...
including hardware/qcom/msm8998/time-services/Android.mk ...
[493/999] including ./hardware/qcom/power/Android.mk ...
[494/999] including ./hardware/qcom/sdm845/Android.mk ...
./hardware/qcom/power/Android.mk:3: error: ./hardware/qcom/sdm845/Android.mk: No such file or directory
15:33:38 ckati failed with: exit status 1

 解決: 進入hardware/qcom/sdm845, ls -l 可見一些無效的符號鏈接, 直接刪除即可

 

參考: 

https://source.android.com/source/initializing

https://source.android.com/setup/build