2 安装依赖
sudo apt-get install -y git flex bison gperf build-essential libncurses5-dev:i386 sudo apt-get install libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-dev g++-multilib sudo apt-get install tofrodos python-markdown libxml2-utils xsltproc zlib1g-dev:i386 sudo apt-get install dpkg-dev libsdl1.2-dev libesd0-dev sudo 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 lib32z-dev ccache sudo apt-get install libgl1-mesa-dev libxml2-utils xsltproc unzip m4Ubuntu 16.04请务必使用上面的依赖，Ubuntu 16.04需要的依赖和Ubuntu 14.04所需要的依赖是不同的
问题2：
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/obj/lib/libart.so' failed
make: *** [out/host/linux-x86/obj/lib/libart.so] Error 1
make: *** 正在等待未完成的任务....
据说这个错误只在ubuntu16.04 上出现
修改源码
修改 mydroid/art/build/Android.common_build.mk 文件，定位到75行，注释掉75-78：
75 #ifneq ($(WITHOUT_HOST_CLANG),true)76 # By default, host builds use clang for better warnings.
77 # ART_HOST_CLANG := true
78 #endif
如果不修改这里，会遇到一个比较棘手的编译错误，修改的目的是把CLANG这个编译选项关掉，详见后面的编译记录，百度搜狗都无解，这个错误只会在Ubuntu16.04上遇到，Ubuntu14.04则不存在这个问题
4、刷机
刷机过程碰到
fastboot reboot
< waiting for any device >
fastboot devices
no permissions (verify udev rules); see [http://developer.android.com/tools/device.html] fastboot
fastboot命令一直识别不了手机，一开始以为时fastboot版本的问题，后来发现不是这么回事
需要设置usb权限
因为ubuntu这样的系统都是默认以非root身份在运行的，要使用usb调试，需要sudo支持。
fastboot模式下插入手机
$ lsusb
ninjame@ubuntu1604:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 04d9:a0cd Holtek Semiconductor, Inc.
Bus 001 Device 030: ID 18d1:4ee0 Google Inc.
Bus 001 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
$sudo vim /etc/udev/rules.d/60-android.rules //60-android.rules为新建的。
加入以下内容：
SUBSYSTEM=="usb", ATTRS{idVendor}=="18d1", ATTRS{idProduct}=="4ee0",MODE="0666"
其中的idvendor idProduct指的是USB的ID可以使用lsusb查询得到。
比如我的是：
lsusb
Bus 001 Device 030: ID 18d1:4ee0 Google Inc.
ID 18d1 就是idVendor ，4ee0就是 idProduct
运行命令，重启udev：
$sudo chmod a+rx /etc/udev/rules.d/60-android.rules
$sudo service udev restart
(很重要)拔掉usb重新连上再执行：
fastboot devices
ninjame@ubuntu1604:~$ fastboot devices
0779af0143a66640 fastboot
设置环境变量 sudo vim /etc/profile
export ANDROID_PRODUCT_OUT="/home/ninjame/aosp/out/target/product/hammerhead"
source /etc/profile
ninjame@ubuntu1604:~/aosp/out/target/product/hammerhead$ fastboot -w flashall
target reported max download size of 1073741824 bytes
wiping userdata...
Creating filesystem with parameters:
Size: 13725835264
Block size: 4096
Blocks per group: 32768
Inodes per group: 8144
Inode size: 256
Journal blocks: 32768
Label:
Blocks: 3351034
Block groups: 103
Reserved block group size: 823
Created filesystem with 11/838832 inodes and 93654/3351034 blocks
wiping cache...
Creating filesystem with parameters:
Size: 734003200
Block size: 4096
Blocks per group: 32768
Inodes per group: 7472
Inode size: 256
Journal blocks: 2800
Label:
Blocks: 179200
Block groups: 6
Reserved block group size: 47
Created filesystem with 11/44832 inodes and 5813/179200 blocks
--------------------------------------------
Bootloader Version...: HHZ12k
Baseband Version.....: M8974A-2.0.50.2.28
Serial Number........: 0779af0143a66640
--------------------------------------------
checking product...
OKAY [ 0.100s]
sending 'boot' (9160 KB)...
OKAY [ 0.500s]
writing 'boot'...
OKAY [ 0.785s]
sending 'recovery' (10018 KB)...
OKAY [ 0.566s]
writing 'recovery'...
OKAY [ 0.825s]
erasing 'system'...
OKAY [ 1.066s]
sending 'system' (358584 KB)...
OKAY [ 11.452s]
writing 'system'...
OKAY [ 25.345s]
erasing 'userdata'...
OKAY [ 7.935s]
sending 'userdata' (137318 KB)...
OKAY [ 4.511s]
writing 'userdata'...
OKAY [ 9.139s]
erasing 'cache'...
OKAY [ 0.584s]
sending 'cache' (13348 KB)...
OKAY [ 0.630s]
writing 'cache'...
OKAY [ 1.067s]
rebooting...
finished. total time: 65.037s
第一次开机如果卡住，只需要进到recovery模式下，执行wipe cache partition，清除系统缓存。
整个过程比较曲折，但看到开机画面弹出时，还是挺开心的。
编译的镜像烧入手机，比较精简，上几张图
截图直接保存到电脑:adb shell screencap -p | sed 's/\r$//' > screen.png