AOSP编译

http://blog.csdn.net/huaiyiheyuan/article/details/52069122

源码编译 ：
一 、JDK环境准备
在编译 android-6.0.1_r1 一直提示要安装openjdk-7
没办法 先按提示来吧 ，如果是7.0,下载openjdk-8-jdk
terminal 输入 ：

sudo add-apt-repository ppa:openjdk-r/ppa  sudo apt-get update   sudo apt-get install openjdk-7-jdk  

选择JDK版本

 sudo update-alternatives --config java   sudo update-alternatives --config javac 

需要下载JDK6按照这个教程
https://www.digitalocean.com/community/tutorials/how-to-install-java-with-apt-get-on-ubuntu-16-04

二、源码下载、
1、 按照正常的方法，前提是你得有个梯子，下载也要很久，如果没环境的，可以去科大源 、清华源（感谢良心工程）下载， 我下载的是压缩包

2、在home路径下 下面不需要代理

Make sure you have a bin/ directory in your home directory and that it is included in your path:$ mkdir ~/bin$ PATH=~/bin:$PATHDownload the Repo tool and ensure that it is executable:$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo$ chmod a+x ~/bin/repo

3、接着把科大下载的 aosp-latest.tar,在home路径下解压，得到aosp ,cd aosp ,然后 checkout出来就可以了运行 repo sync就拿到代码了

三、编译
1、环境准备
由于不知道里面的道道，索性全部安装

sudo apt-get install libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-dev g++-multilib sudo apt-get install -y git flex bison gperf build-essential libncurses5-dev:i386 sudo apt-get install tofrodos python-markdown libxml2-utils xsltproc zlib1g-dev:i386 sudo apt-get install dpkg-dev libsdl1.2-dev libesd0-devsudo apt-get install git-core gnupg flex bison gperf build-essential  sudo apt-get install zip curl zlib1g-dev gcc-multilib g++-multilib sudo apt-get install libc6-dev-i386 sudo apt-get install lib32ncurses5-dev x11proto-core-dev libx11-dev sudo apt-get install libgl1-mesa-dev libxml2-utils xsltproc unzip m4sudo apt-get install lib32z-dev ccache 

2、开始编译：

 make clobber source build/envsetup.sh lunch aosp_arm-eng make -j8

三 .编译的错误

[ 1% 379/20592] Building with Jack:
o…-all_intermediates/dex-dir/classes.dex FAILED: /bin/bash
out/target/common/obj/JAVA_LIBRARIES/core-all_intermediates/dex-dir/classes.dex.rsp
Out of memory error (version 1.2-rc4 ‘Carnac’ (298900
f95d7bdecfceb327f9d201a1348397ed8a843843 by
[e-mail])). GC overhead limit exceeded. Try
increasing heap size with java option ‘-Xmx’. Warning: This may
have produced partial or corrupted output. [ 1% 384/20592] Compiling
SDK Stubs w…ubs_current_intermediates/classes.jack ninja: build
stopped: subcommand failed. make: * [ninja_wrapper] 错误 1

[ 99% 2245/2251] Building with Jack:
o…-all-hostdex_intermediates/classes.dex FAILED: /bin/bash
out/host/common/obj/JAVA_LIBRARIES/core-all-hostdex_intermediates/classes.dex.rsp
Communication error with Jack server (56). Try ‘jack-diagnose’ ninja:
build stopped: subcommand failed.

1编译的android7.1.1
现在用下面方法解决了

export JACK_SERVER_VM_ARGUMENTS="-Dfile.encoding=UTF-8 -XX:+TieredCompilation -Xmx4g"./prebuilts/sdk/tools/jack-admin kill-server./prebuilts/sdk/tools/jack-admin start-server

参考：
http://stackoverflow.com/questions/35579646/android-source-code-compile-error-try-increasing-heap-size-with-java-option

2、编译android6.x
之前编译android6.x时， 用这个方法虽然能解决一时的错误，但是后面接下来的错误我一直没找到方法解决，后面不得不全部删了 重新拉出代码

Ensure Jack server is installed and started Jack server already
installed in “/home/jon/.jack-server”Server is already running

就是引起的这个错误一直没解决，不得不重来

然后用下面方法解决
方法一:
在编译命令之前,修改prebuilts/sdk/tools/jack-admin文件,找到文件中的这一行:
JACK_SERVER_COMMAND=”java -Djava.io.tmpdir=TMPDIRJACK_SERVER_VM_ARGUMENTS -cp LAUNCHERJARLAUNCHER_NAME”
然后在该行添加-Xmx4096m,如:
JACK_SERVER_COMMAND=”java -Djava.io.tmpdir=TMPDIRJACK_SERVER_VM_ARGUMENTS -Xmx4096m -cp LAUNCHERJARLAUNCHER_NAME”

参考：

http://stackoverflow.com/questions/35579646/android-source-code-compile-error-try-increasing-heap-size-with-java-option

问题二
　　

　out/host/linux-　x86/obj32/SHARED_LIBRARIES/libartd_intermediates/arch/x86/quick_entrypoints_x86.o:function art_quick_deoptimize: error: unsupported reloc 43
clang: error: linker command failed with exit code 1 (use -v to see invocation)
build/core/host_shared_library_internal.mk:51: recipe for target ‘out/host/linux-x86/obj32/lib/libartd.so’ failed
make: * [out/host/linux-x86/obj32/lib/libartd.so] Error 1

clang编译器导致的问题，目前可行的修改方法时在art/build/Android.common_build.mk ,中将host 默认编辑器使用clang关掉，找到WITHOUT_HOST_CLANG关闭clang即可# Host.ART_HOST_CLANG := falseifneq ($(WITHOUT_HOST_CLANG),true)  # By default, host builds use clang for better warnings.  ART_HOST_CLANG := falseendif

：参考　
　　http://blog.csdn.net/u011444472/article/details/51463074

然后再执行 make -j8

编译完成：

2、运行

在编译完成之后,就可以通过以下命令运行Android虚拟机了,命令如下:

source build/envsetup.shlunch(选择编译时设置的目标版本,比如这里了我选择的是1 lunch aosp_arm-eng)emulator

然后就可以看到7.0的模拟器界面了

四、Android Studio导入源码
$ source build/envsetup.sh

    $ mmm development/tools/idegen/    会在out/host/linux-x86/frameworks/目录下生成了idegen.jar文件    $ development/tools/idegen/idegen.sh    会在根目录下生成    android.iml和android.ipr这两个文件，这两个文件是Android Studio的工程配置文件

接着用Android Studio导入源码，打开android.iml，

      <excludeFolder url="file://$MODULE_DIR$/.repo" />      <excludeFolder url="file://$MODULE_DIR$/abi" />      <excludeFolder url="file://$MODULE_DIR$/art" />      <excludeFolder url="file://$MODULE_DIR$/bionic" />      <excludeFolder url="file://$MODULE_DIR$/bootable" />      <excludeFolder url="file://$MODULE_DIR$/build" />      <excludeFolder url="file://$MODULE_DIR$/compatibility" />      <excludeFolder url="file://$MODULE_DIR$/cts" />      <excludeFolder url="file://$MODULE_DIR$/dalvik" />      <excludeFolder url="file://$MODULE_DIR$/developers" />      <excludeFolder url="file://$MODULE_DIR$/development" />      <excludeFolder url="file://$MODULE_DIR$/device" />      <excludeFolder url="file://$MODULE_DIR$/docs" />      <excludeFolder url="file://$MODULE_DIR$/external" />      <excludeFolder url="file://$MODULE_DIR$/external/bluetooth" />      <excludeFolder url="file://$MODULE_DIR$/external/chromium" />      <excludeFolder url="file://$MODULE_DIR$/external/emma" />      <excludeFolder url="file://$MODULE_DIR$/external/icu4c" />      <excludeFolder url="file://$MODULE_DIR$/external/jdiff" />      <excludeFolder url="file://$MODULE_DIR$/external/webkit" />      <excludeFolder url="file://$MODULE_DIR$/frameworks/base/docs" />      <excludeFolder url="file://$MODULE_DIR$/hardware" />      <excludeFolder url="file://$MODULE_DIR$/kernel" />      <excludeFolder url="file://$MODULE_DIR$/libcore" />      <excludeFolder url="file://$MODULE_DIR$/libnativehelper" />      <excludeFolder url="file://$MODULE_DIR$/ndk" />      <excludeFolder url="file://$MODULE_DIR$/out" />      <excludeFolder url="file://$MODULE_DIR$/out/eclipse" />      <excludeFolder url="file://$MODULE_DIR$/out/host" />      <excludeFolder url="file://$MODULE_DIR$/out/target/common/docs" />      <excludeFolder url="file://$MODULE_DIR$/out/target/common/obj/JAVA_LIBRARIES/android_stubs_current_intermediates" />      <excludeFolder url="file://$MODULE_DIR$/out/target/product" />      <excludeFolder url="file://$MODULE_DIR$/packages" />      <excludeFolder url="file://$MODULE_DIR$/pdk" />      <excludeFolder url="file://$MODULE_DIR$/platform_testing" />      <excludeFolder url="file://$MODULE_DIR$/prebuilt" />      <excludeFolder url="file://$MODULE_DIR$/prebuilts" />      <excludeFolder url="file://$MODULE_DIR$/sdk" />      <excludeFolder url="file://$MODULE_DIR$/system" />      <excludeFolder url="file://$MODULE_DIR$/test" />      <excludeFolder url="file://$MODULE_DIR$/toolchain" />      <excludeFolder url="file://$MODULE_DIR$/tools" />

：然后open android.ipr

五、调试源码

http://blog.csdn.net/yanbober/article/details/48846331
http://blog.csdn.net/songjinshi/article/details/53020549
http://ronubo.blogspot.com/2016/01/debugging-aosp-platform-code-with.html
Android其他版本编译
1、有时候 GUU MAKE版本不合适，就需要下载安装了下面是下载4.1的方法
cd /tmp
wget http://ftp.gnu.org/gnu/make/make-4.1.tar.gz
tar xvf make-4.1.tar.gz
./configure
make
sudo make install
rm -rf make-4.1.tar.gz make-4.1

可以用http://ftp.gnu.org/gnu/make 选择你需要的
http://stackoverflow.com/questions/31912233/how-to-update-make-3-81-linux

本文参考：
https://source.android.com/source/index.html
http://www.jianshu.com/p/367f0886e62b
http://www.jianshu.com/p/fb16fa459acf