参考博客 https://blog.csdn.net/weixin_43860588/article/details/105474948
策略选择
本打算在mac上编译源码， 但看到经过反复折腾，最终决定采取移动硬盘格式化为EXT4格式，容量200G。存放aosp代码，mac安装ubuntu虚拟机方式，挂载移动硬盘的方式进行源码编译。这样可以避免虚拟机体积过于庞大，也方便在不同电脑上访问源码。
构建环境搭建
https://source.android.com/setup/build/initializing
aosp 源码是通过 Git 进行管理的，但是由于代码量巨大，单纯使用 Git 已经无法满足日常便捷操作的目标。所以 Google 以 Git 为基础，使用 Python 编写了 repo 这款工具，让开发者可以更方便轻松的管理源码，点击查看 repo 使用详情。
首先，创建 repo 工具存放文件夹。
然后，下载 repo，并赋予 repo 可执行权限。
curl https://storage.googleapis.com/git-repo-downloads/repo > /usr/local/bin/repo
chmod a+x /usr/local/bin/repo
安装所需的软件包 (Ubuntu 18.04)
更新阿里源
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
您需要 64 位版本的 Ubuntu。
sudo apt-get install git-core gnupg flex bison build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 libncurses5-dev lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z1-dev libgl1-mesa-dev libxml2-utils xsltproc unzip fontconfig
适用于Python2
sudo apt install python-minimal
适用于 Python3
如果您的 Ubuntu 20.04.2 LTS 是全新安装（相对于升级）的 Linux 版本：
sudo ln -s /usr/bin/python3 /usr/bin/python
下载Android源码
下载aosp源码
由于Android源码体量巨大，直接拉取很容易失败，可以先下载.repo压缩包（直接用以前下载的33G左右）
tar zxvf aosp_repo.tgz -C oreo/
按照手机型号在安卓开发者网站查找对应的分支和细分版本等信息
https://source.android.com/setup/start/build-numbers
https://developers.google.com/android/images
如果要烧录真机，分支选择很关键，建议两个网址都看看，编译好烧录失败的时候还有官方包补救
这里我的手机为Pixel XL，找一个支持Pixel XL编译的分支，可以在打开以上网址后全局搜索Pixel XL，选择其中一个分支为android-8.0.0_r3
OPR6.170623.012 android-8.0.0_r3 Oreo Pixel XL、Pixel 2017-08-05
| 8.0.0 (OPR6.170623.012, Aug 2017) | Link | 8ada9373e6f86cac20023bd6c7889edb0449fc7085913d1e45f8a1491b17942c |
切到特定分支，这里要切换成android-8.0.0_r3
直接
repo init -u https://aosp.tuna.tsinghua.edu.cn/platform/manifest -b android-8.0.0_r3
接下来回到.repo所在目录
repo sync -c （完全下载好，.repo文件夹大约40G)
选项:
-j ： 多任务，一般8核心可以开到16任务,过多会起反作用
-c： 只下载当前分支代码
-d： 让工程回退到manifest指定的版本
-f： 如果某个工程同步失败，继续同步
为了避免失败， 可以加脚本重试
#!/bin/sh
repo sync -c -j4
while [ $? -ne 0 ]
do
repo sync -c -j4
done
问题记录：
1. AttributeError: 'str' object has no attribute 'decode'
2. File "/Volumes/aosp/google/.repo/repo/project.py", line 2587, in DiffZ
out = iter(out[:-1].split(' ')) # pylint: disable=W1401
TypeError: a bytes-like object is required, not 'str'
出现这种情况跟我们下载方式有关系，报错报在repo目录，有理由怀疑下载不是最新的，所以不要去修改脚本（改了同步也会出现冲突），想办法更新到最新就好
解决方式：
cd .repo/repo
git reset --hard HEAD^^^^^^^^^^^
下载驱动文件
https://developers.google.com/android/drivers
机器为pixel xl， 结合代码分支信息OPR6.170623.012，实际链接为
https://developers.google.com/android/drivers#marlinopr6.170623.012
Pixel XL binaries for Android 8.0.0 (OPR6.170623.012)
| Hardware Component | Company | Download | SHA-256 Checksum |
|---|---|---|---|
| Vendor image | 3fe0150da11fe3065f39bf3308d9ecf1a4ca0a5ded120b21d711271bf68fae08 | ||
| GPS, Audio, Camera, Gestures, Graphics, DRM, Video, Sensors | Qualcomm | f3a578c9c582e61f94ca83c85135f46c270a1e6af679365d94c7b2d2e8afbe7a |
下载完解压后实际是两个脚本
extract-qcom-marlin.sh
extract-google_devices-marlin.sh
这里选择编译pixel xl可以直接用的user debug 版本
source build/envsetup.sh
lunch 21
make -j4
问题记录
问题1
SyntaxError: invalid syntax
[ 0% 104/83842] target Java: okhttp (...IBRARIES/okhttp_intermediates/classes)
File "build/tools/normalize_path.py", line 25
print os.path.normpath(p)
^
SyntaxError: invalid syntax
[ 0% 105/83842] target Java: libphone...number-platform_intermediates/classes)
File "build/tools/normalize_path.py", line 25
print os.path.normpath(p)
^
SyntaxError: invalid syntax
ninja: build stopped: subcommand failed.
06:48:49 ninja failed with: exit status 1
build/core/main.mk:21: recipe for target 'run_soong_ui' failed
make: *** [run_soong_ui] Error 1
-----------------------
问题2
[ 0% 3/83736] JarJar: out/target/common/obj/JAVA_LIBRARIES/libphonenumber-platform_intermediates/classes-jarjar.jar
FAILED: out/target/common/obj/JAVA_LIBRARIES/libphonenumber-platform_intermediates/classes-jarjar.jar
/bin/bash -c "java -jar out/host/linux-x86/framework/jarjar.jar process external/libphonenumber/jarjar-rules.txt out/target/common/obj/JAVA_LIBRARIES/libphonenumber-platform_intermediates/classes-full-debug.jar out/target/common/obj/JAVA_LIBRARIES/libphonenumber-platform_intermediates/classes-jarjar.jar"
错误: 找不到或无法加载主类 com.tonicsystems.jarjar.Main
ninja: build stopped: subcommand failed.
10:46:07 ninja failed with: exit status 1
build/core/main.mk:21: recipe for target 'run_soong_ui' failed
make: *** [run_soong_ui] Error 1
#### make failed to build some targets (41 seconds) ####
问题3
Jack server failed to (re)start, try 'jack-diagnose' or see Jack server log
SSL error when connecting to the Jack server. Try 'jack-diagnose'
SSL error when connecting to the Jack server. Try 'jack-diagnose'
[ 0% 292/79741] target C++: libv8src <= external/v8/src/wasm/wasm-module.cc
解决方式：
问题1
使用python2
问题2
编译之前执行 export LC_ALL=C
问题3
参考https://segmentfault.com/a/1190000039970343
原因就是编译时用的是open-jdk 8u292，默认禁用了TLSv1, TLSv1.1，
从/etc/java-8-openjdk/security/java.security中取消TLSv1, TLSv1.1 禁用
修改后执行 ./jack-admin kill-server && ./jack-admin start-server
烧录
先设置环境变量
sudo vim /etc/profile
export ANDROID_PRODUCT_OUT="/media/sain/Ubuntu/aosp/oreo/out/target/product/marlin"
source /etc/profile
-------
fastboot -w flashall
如果刷完无法启动，可以根据OPR6.170623.012从https://developers.google.com/android/images下载官方镜像包
执行 ./flash_bash.sh
eng This is the default flavor. A plain make is the same as make eng.
* Installs modules tagged with: eng, debug, user, and/or development.
* Installs non-APK modules that have no tags specified.
* Installs APKs according to the product definition files, in addition to tagged APKs.
* ro.secure=0
* ro.debuggable=1
* ro.kernel.android.checkjni=1
* adb is enabled by default.
* Setupwizard is optional
user make user
This is the flavor intended to be the final release bits.
* Installs modules tagged with user.
* Installs non-APK modules that have no tags specified.
* Installs APKs according to the product definition files; tags are ignored for APK modules.
* ro.secure=1
* ro.debuggable=0
* adb is disabled by default.
* Enable dex pre-optimization for all TARGET projects in default to speed up device first boot-up
userdebug make userdebug
The same as user, except:
* Also installs modules tagged with debug.
* ro.debuggable=1
* adb is enabled by default.
cd .repo/manifests git checkout -b android-8.0.0_r3 git branch --set-upstream-to=origin/android-8.0.0_r3 android-8.0.0_r3 git fetch --all git reset --hard origin/android-8.0.0_r3
2. repo init做了啥
三个文件变化 .repo/manifests/default.xml .repo/manifests.git/config .repo/manifests.git/.repo_config.json sain@Ubuntu1804:/media/sain/Linux/aosp/test$ cat .repo/manifests/default.xml <?xml version="1.0" encoding="UTF-8"?> <manifest> <remote name="aosp" fetch=".." review="https://android-review.googlesource.com/" /> <default revision="refs/tags/android-8.0.0_r3" remote="aosp" sync-j="4" /> -------------- sain@Ubuntu1804:/media/sain/Linux/aosp/test$ cat .repo/manifests.git/config [core] repositoryformatversion = 0 filemode = true [filter "lfs"] smudge = git-lfs smudge --skip -- %f process = git-lfs filter-process --skip [remote "origin"] url = https://aosp.tuna.tsinghua.edu.cn/platform/manifest fetch = +refs/heads/*:refs/remotes/origin/* [branch "default"] remote = origin merge = refs/heads/android-8.0.0_r3 -------------- sain@Ubuntu1804:/media/sain/Linux/aosp/test$ cat .repo/manifests.git/.repo_config.json { "core.repositoryformatversion": [ "0" ], "core.filemode": [ "true" ], "filter.lfs.smudge": [ "git-lfs smudge --skip -- %f" ], "filter.lfs.process": [ "git-lfs filter-process --skip" ], "remote.origin.url": [ "https://aosp.tuna.tsinghua.edu.cn/platform/manifest" ], "remote.origin.fetch": [ "+refs/heads/*:refs/remotes/origin/*" ], "branch.default.remote": [ "origin" ], "branch.default.merge": [ "refs/heads/android-8.0.0_r3" ] }