repo init -u https://android.googlesource.com/platform/manifest
repo sync 之后
这样初始化之后，相当于下载了全部的分支,
本想编译源码烧录到手机Nexus 5，编译时才发现找不到aosp_hammerhead_userdebug，毕竟nexus5明确不支持android-7.0
那么如何切换成自己想要的分支
查看可切换的分支
cd .repo/manifests
git branch -a | cut -d / -f 3
以android-6.0.1_r8为例
repo start android-6.0.1_r8 --all
查看当前的分支
repo branches
示例如下：
但最终还是无法完成编译
其实命令repo start android-6.0.1_r8 --all 只是在每个git库上新建一个分支，代码并不会切到指定分支
repo abandon android-6.0.1_r8 清除本地分支
-----------------------------------分割线-------------------------------------------
上面使用每月初始化包的方式没能通过编译，无奈，老老实实下载吧
1、下载
mkdir aosp cd aosp repo init -u https://aosp.tuna.tsinghua.edu.cn/platform/manifest -b android-6.0.1_r3
sh myrepo.sh
myrepo.sh是为避免repo失败过程，对repo sync 重试过程进行的封装，见下方
#!/bin/sh repo sync -j4 while [ $? -ne 0 ] do repo sync -j4 done
同步过程出现 curl: (22) The requested URL returned error: 404 Not Found Server does not provide clone.bundle; ignoring. 直接无视即可
下载完整个目录大小为54G ninjame@ubuntu1604:~$ du -sh aosp/ 54G aosp/
2、编译
export USE_CCACHE=1 prebuilts/misc/linux-x86/ccache/ccache -M 50G source build/envsetup.sh ninjame@ubuntu1604:~/aosp$ lunch ------------------------------ You're building on Linux Lunch menu... pick a combo: 1. aosp_arm-eng 2. aosp_arm64-eng 3. aosp_mips-eng 4. aosp_mips64-eng 5. aosp_x86-eng 6. aosp_x86_64-eng 7. aosp_deb-userdebug 8. aosp_flo-userdebug 9. full_fugu-userdebug 10. aosp_fugu-userdebug 11. mini_emulator_arm64-userdebug 12. m_e_arm-userdebug 13. mini_emulator_mips-userdebug 14. mini_emulator_x86_64-userdebug 15. mini_emulator_x86-userdebug 16. aosp_flounder-userdebug 17. aosp_angler-userdebug 18. aosp_bullhead-userdebug 19. aosp_hammerhead-userdebug 20. aosp_hammerhead_fp-userdebug 21. aosp_shamu-userdebug Which would you like? [aosp_arm-eng] 19 ------------------------ make -j8
问题记录：
pp frameworks/base/tools/aidl/aidl_language_y.y build/core/binary.mk:609: recipe for target 'out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_y.cpp' failed make: *** [out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_y.cpp] 断开的管道 make: *** 正在等待未完成的任务.... Lex: aidl <= frameworks/base/tools/aidl/aidl_language_l.l frameworks/base/tools/aidl/aidl_language_l.l:55: warning, 无法匹配规则 flex-2.5.39：严重内部错误，exec of /usr/bin/m4 failed build/core/binary.mk:646: recipe for target 'out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_l.cpp' failed make: *** [out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_l.cpp] Error 1 make: *** Deleting file 'out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_l.cpp' 注: 某些输入文件使用或覆盖了已过时的 API。 注: 有关详细信息, 请使用 -Xlint:deprecation 重新编译。 注: 某些输入文件使用了未经检查或不安全的操作。 注: 有关详细信息, 请使用 -Xlint:unchecked 重新编译。 解决办法： sudo apt-get install m4 sudo apt-get install libxml2-utils
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
1 更换软件源为阿里云
为了更快的安装软件，我们需要更换软件源为国内的软件源，这里推荐使用Ubuntu官方指定的国内软件源阿里云，博主之前使用的是网易的软件源，结果发现OpenJDK7装不上去，于是换成了阿里的，具体方法是：
sudo gedit /etc/apt/sources.list 在文件最前面加入下面代码：
deb http://mirrors.aliyun.com/ubuntu/ quantal main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ quantal-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ quantal-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ quantal-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ quantal main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ quantal-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ quantal-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ quantal-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ quantal-backports main restricted universe multiverse2 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
3 修改源码
修改 mydroid/art/build/Android.common_build.mk 文件，定位到75行，将下面的代码：
ifneq ($(WITHOUT_HOST_CLANG),true)改为：
ifeq ($(WITHOUT_HOST_CLANG),false)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，
参考 http://blog.csdn.net/fuchaosz/article/details/51487585
最终编译耗时 1h 22min
Creating filesystem with parameters: Size: 1073741824 Block size: 4096 Blocks per group: 32768 Inodes per group: 8192 Inode size: 256 Journal blocks: 4096 Label: system Blocks: 262144 Block groups: 8 Reserved block group size: 63 Created filesystem with 1511/65536 inodes and 93478/262144 blocks Install system fs image: out/target/product/hammerhead/system.img out/target/product/hammerhead/system.img+out/target/product/hammerhead/obj/PACKAGING/recovery_patch_intermediates/recovery_from_boot.p maxsize=1096212480 blocksize=135168 total=367728881 reserve=11083776 #### make completed successfully (01:12:44 (hh:mm:ss)) #### ninjame@ubuntu1604:~/aosp$ du -sh out/ 22G out/
3、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
完成刷机过程