Ubuntu Android source and kernel download and compile _android

This tutorial is based on Ubuntu under the Android6.0.1 source and the kernel download and compile, record, and then do not have to find their own data, over and over again to try. Can turn over the wall, English is good, go straight to Androidsource.

System Environment: Ubuntu14.04lts

Android version: 6.0.1

Important Web site

Tsinghua University Mirror Image
Androidsource

Pre-Download preparation

Install OpenJDK

sudo add-apt-repository ppa:openjdk-r/ppa
sudo apt-get update
sudo apt-get install openjdk-8-jdk
sudo Update-alternatives--config java
java-version

Install Git

sudo apt-get install Git-core

Install an additional build

sudo apt-get install GnuPG flex Bison gperf build-essential \ Zip Curl zlib1g-dev gcc-multilib g++-multilib
 i386 \
 Lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev ccache \
 Libgl1-mesa-dev libxml2-utils Xsltproc Unzip

Build	function	Introduction Web Site
GnuPG	Encryption tool	GPG Introductory Tutorials
Flex	The Fast lexical Analyzer	Quick Syntax Analysis tools
Bison	For automatic generation of parser programs	Automatic generation of parser programs
Gperf	The perfect hash function generator	Use Gperf to implement efficient C + + command line processing
Build-essential	Compilation of make Menuconfig into graphics in the kernel	Build-essential
Zip	Compression and decompression of Zip package under Linux	Compression and decompression of Zip package under Linux
Curl	Network request and extraction tools	Curl Website Development Guide
Zlib1g-dev	Tools for discovering Gzip and PKZIP	Binary package "Zlib1g-dev" in Ubuntu trusty
Gcc-multilib	Allows 32-bit applications to be run in 64-bit machines	Multilib
G++-multilib	Ibid. (g++ Compilation tool)	Multi-platform Support
Libc6-dev-i386	Embedded GNU C library:32-bit development libraries for AMD64	Libc6-dev-i386
Lib32ncurses5-dev	To be perfected	To be perfected
X11proto-core-dev	To be perfected	To be perfected
Libx11-dev	To be perfected	To be perfected
Lib32z-dev	To be perfected	To be perfected
CCache	To be perfected	To be perfected
Libgl1-mesa-dev	To be perfected	To be perfected
Libxml2-utils	To be perfected	To be perfected
Xsltproc	To be perfected	To be perfected
Unzip	To be perfected	To be perfected

Download

Because of the network and the reasons for the wall, we use Tsinghua University mirroring, the following steps:

Download the Repo tool

mkdir ~/bin
path=~/bin: $PATH
Curl Https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo

Download source

wget Https://mirrors.tuna.tsinghua.edu.cn/aosp-monthly/aosp-latest.tar # Download Initialization package
Tar XF Aosp-latest.tar
CD AOSP # extract AOSP Engineering directory
# at this time LS words can see nothing, because there is only one hidden. Repo Directory
Repo Sync # Normal sync to get the full catalog
# or repo sync-l only checkout code

PS: Total 25G, slow down!

Compile

Enter the AOSP root directory

Initializing the compilation environment

. build/envsetup.sh

Select compilation target, select 1, all options mean, back to update

Lunch

Start compilation, where 4 concurrent numbers are used:

Make-j4

Using the packaging tool mmm, after completing the command, you will generate ANDROID.IRP in the root directory, open an existing project with Android Studio, and open Android.irp

Mmm development/tools/idegen/

Running the current version of the emulator

Add the emulator source directory to the path

Export Path=&path:~/bin/aosp/out/host/linux-x86/bin

Set source code compile output directory

Export Android_product_out=~/bin/aosp/out/target/product/generic

Run emulator

Emulator

Download the Android kernel source code

Go to the kernel directory and download the kernel

git clone https://aosp.tuna.tsinghua.edu.cn/android/kernel/goldfish.git

Enter Goldfish directory, select Branch

CD Goldfish
Git branch-a
git checkout remotes/origin/android-goldfish-2.6.29

Compiling the Android kernel source code

To add the cross-compilation tool directory to the PATH environment variable

Export path= $PATH: ~/bin/aosp/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9/bin

Open Goldfish Makefile Modify the configuration file, locate the Arch,cross_compile, and modify it as follows

ARCH =arm.
Cross_compile? =/home/user/bin/aosp/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9/bin/
arm-linux-androidkernel-

Note: Be sure to set the absolute path.

Build configuration file and compile

Make Goldfish_defconfig
Make

Run the current kernel version of the emulator

Running the current emulator

Emulator-kernel./kernel/goldfish/arch/arm/boot/zimage

View Kernel version

ADB shell
CD proc
Cat version

Bugs

JDK Memory Overflow

FAILED:/bin/bash OUT/TARGET/COMMON/OBJ/JAVA_LIBRARIES/FRAMEWORK_INTERMEDIATES/DEX-DIR/CLASSES.DEX.RSP
Out of Memory error (version 1.2-RC4 ' Carnac ') (298900 f95d7bdecfceb327f9d201a1348397ed8a843843 by android-jack-team@google.com)).
GC overhead limit exceeded.
Try increasing heap size with Java option '-xmx<size> '.
Warning:this may have produced partial or corrupted output.
Ninja:build Stopped:subcommand failed.
Make: * * * * [Ninja_wrapper] Error 1

A:

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

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