Compile android source and kernel for emulator in Debian

　　1、download the android source code

　　Reference from

http://source.android.com/source/downloading.html

　　follow the reference:

　　Create the dir and export the PATH

$ mkdir ~/bin

$ PATH=~/bin:$PATH

　　Download the repo

$ curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > ~/bin/repo

$ chmod 775 ~/bin/repo

　　Repo init the code version you want 

$ repo init -u https://android.googlesource.com/platform/manifest -b android-4.0.1_r1

　　finally sync the codes

$ repo sync

// better way

$ repo sync -j16

　　if try to stop the repo, just try

Ctrl + z   

　　and continue the repo

$ repo sync 

// or 

$ repo sync -j16

　　after download, must enter "repo sync" to check the code again.

 

　　2、download the kernel

　　Reference from

https://android.googlesource.com/

　　click the kernel/common, there would be a instruction on the top:

git clone https://android.googlesource.com/kernel/common

　　the version for emulator

git clone https://android.googlesource.com/kernel/goldfish

 

　　3、Compile the source code

　　1) check the build environment

http://source.android.com/source/initializing.html

　　2) compile

$ cd ~/Android/source_code/

$ make

// or 

$ make -j4

　　3) there would be the files in the following dir

$ ls out/host/linux-x86/bin/ | grep emulator

emulator

emulator64-arm

emulator64-mips

emulator64-x86

emulator-arm

emulator-mips

emulator_renderer

emulator-ui

emulator-x86

$ ls out/target/product/generic/ | grep img

ramdisk.img

system.img

userdata.img

　　4、 Compile the kernel

 

$ cd goldfish/

$ ls

　　but there is no files now.

　　checkout for the real codes.

$ git checkout 

android-goldfish-2.6.29          master                           origin/linux-goldfish-3.0-wip 

android-goldfish-3.4             origin/android-goldfish-2.6.29   origin/master 

HEAD                             origin/android-goldfish-3.4      

linux-goldfish-3.0-wip           origin/HEAD           

　　choose the version you want

$ git checkout android-goldfish-2.6.29 

Checking out files: 100% (26821/26821), done.

Branch android-goldfish-2.6.29 set up to track remote branch android-goldfish-2.6.29 from origin.

切换到一个新分支 'android-goldfish-2.6.29'

　　then

$ ls

arch     CREDITS        drivers   include  Kbuild  MAINTAINERS  net             samples   sound

block    crypto         firmware  init     kernel  Makefile     README          scripts   usr

COPYING  Documentation  fs        ipc      lib     mm           REPORTING-BUGS  security  virt

　　compile the kernel

　　1) crrect the Mafile

$ vim Makefile

//correct the following messenge

#ARCH           ?= $(SUBARCH)

ARCH            ?= arm

CROSS_COMPILE   ?= arm-none-linux-gnueabi-

　　2) make menuconfig

$ make menuconfig

>> Save an Alternate Configuration File       

　　3) make 

 

　　TIPS : there would be error without libnucurses

$ sudo apt-get install libncurses5 libncurses5-dev

// in AMD64

$ sudo apt-get install libncurses5 libncurses5-dev

$ sudo apt-get install ia32-libs 

$ sudo apt-get install lib32ncurses5 lib32ncurses5-dev