搭建android源代码编译环境
1.配置JDK6
（1）root身份编辑sources.list文件：sudo gedit /etc/apt/sources.list
（2）在sources.list文件末尾添加如下源：deb http://us.archive.ubuntu.com/ubuntu/ hardy multiverse
（3）保存sources.list后在终端进行更新操作：sudo apt-get update
（4）执行如下命令安装jdk6：apt-get install sun-java6-jdk。
或者如下：
$ sudo add-apt-repository "deb http://us.archive.ubuntu.com/ubuntu/ hardy multiverse" $ sudo apt-get update $ sudo apt-get install sun-java6-jdk
2.安装工具包
sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev libc6-dev lib32ncurses5-dev ia32-libs x11proto-core-dev libx11-dev lib32readline-gplv2-dev lib32z1-dev libgl1-mesa-dev g++-multilib mingw32 tofrodos python-markdown libxml2-utils xsltproc
3.配置USB访问
（1）create a file/etc/udev/rules.d/51-android.rules
（2）以下内容复制，保存。OWNER="lbj"改为自己的用户名。
# adb protocol on passion (Nexus One)
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4e12", MODE="0600", OWNER="lbj"
# fastboot protocol on passion (Nexus One)
SUBSYSTEM=="usb", ATTR{idVendor}=="0bb4", ATTR{idProduct}=="0fff", MODE="0600", OWNER="lbj"
# adb protocol on crespo/crespo4g (Nexus S)
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4e22", MODE="0600", OWNER="lbj"
# fastboot protocol on crespo/crespo4g (Nexus S)
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4e20", MODE="0600", OWNER="lbj"
# adb protocol on stingray/wingray (Xoom)
SUBSYSTEM=="usb", ATTR{idVendor}=="22b8", ATTR{idProduct}=="70a9", MODE="0600", OWNER="lbj"
# fastboot protocol on stingray/wingray (Xoom)
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="708c", MODE="0600", OWNER="lbj"
# adb protocol on maguro/toro (Galaxy Nexus)
SUBSYSTEM=="usb", ATTR{idVendor}=="04e8", ATTR{idProduct}=="6860", MODE="0600", OWNER="lbj"
# fastboot protocol on maguro/toro (Galaxy Nexus)
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4e30", MODE="0600", OWNER="lbj"
# adb protocol on panda (PandaBoard)
SUBSYSTEM=="usb", ATTR{idVendor}=="0451", ATTR{idProduct}=="d101", MODE="0600", OWNER="lbj"
# fastboot protocol on panda (PandaBoard)
SUBSYSTEM=="usb", ATTR{idVendor}=="0451", ATTR{idProduct}=="d022", MODE="0600", OWNER="lbj"
# usbboot protocol on panda (PandaBoard)
SUBSYSTEM=="usb", ATTR{idVendor}=="0451", ATTR{idProduct}=="d00f", MODE="0600", OWNER="lbj"
# usbboot protocol on panda (PandaBoard ES)
SUBSYSTEM=="usb", ATTR{idVendor}=="0451", ATTR{idProduct}=="d010", MODE="0600", OWNER="lbj"
# adb protocol on grouper/tilapia (Nexus 7)
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4e42", MODE="0600", OWNER="lbj"
# fastboot protocol on grouper/tilapia (Nexus 7)
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4e40", MODE="0600", OWNER="lbj"
# adb protocol on manta (Nexus 10)
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4ee2", MODE="0600", OWNER="lbj"
# fastboot protocol on manta (Nexus 10)
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4ee0", MODE="0600", OWNER="lbj"
4.配置ccache
①安装ccache
$sudo apt-get install ccache
②查看安装路径
$which ccache
$which ccache
/usr/bin/ccache
③$sudo mkdir ~/.bin
④ $ cd ~/.bin/
$ sudo ln -s /usr/bin/ccache gcc
$ sudo ln -s /usr/bin/ccache g++
$ sudo ln -s /usr/bin/ccache arm-linux-gcc
$ sudo ln -s /usr/bin/ccache arm-linux-g++
⑤设置PATH，将~/.bin/放在 arm-linux-gcc等的PATH的前面。
原：PATH=/usr/local/arm-linux_pre4/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
现：PATH=
/home/<user>/.bin:/usr/local/arm-linux_pre4/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
gedit ~/.bashrc 添加 export PATH="/home/<user>/.bin:$PATH" ，然后重启即可
⑥$ which arm-linux-gcc
/home/<user>/.bin/arm-linux-gcc 确认
5.配置repo
（1）
（2）root@ubun:/home/lbj/bin# curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > repo
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 22889 100 22889 0 0 55965 0 --:--:-- --:--:-- --:--:-- 88374
（3）sudo chmod a+x ~/bin/repo
(4)产生用户名和密码
（6）root用户下
5.配置repo
（1）
$ mkdir ~/bin PATH 添加 /home/lbj/bin
（2）root@ubun:/home/lbj/bin# curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > repo
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 22889 100 22889 0 0 55965 0 --:--:-- --:--:-- --:--:-- 88374
（3）sudo chmod a+x ~/bin/repo
(4)产生用户名和密码
1. 浏览器登录https://android.googlesource.com/new-password，并用gmail帐号登录；
2. 点击网页上的“允许访问”，得到类似：
machine android.googlesource.com login git-<userName>.gmail.com password <password>
machine android-review.googlesource.com login git-<userName>.gmail.com password <password>
的信息。
3. 把上面那段信息（<userName>和<password>用自己得到的真实信息）追加到~/.netrc文件结尾；（root用户下）
4. 下载地址的URI更改为https://android.googlesource.com/a/platform/manifest（中间加上了“/a”）。
(5)root@ubun:/home/lbj/workdir# repo init -u https://android.googlesource.com/a/platform/manifest
（6）root用户下
$ sudo sysctl -w net.ipv4.tcp_window_scaling=0 $ repo sync -j8