Compiling dalvikvm for Ubuntu 14.04, creating EC2 image, running hello world

compilation

#Some references:
# by Huber Flores:
# https://gist.github.com/huberflores/4687766
# https://gist.github.com/huberflores/9886339
# https://gist.github.com/huberflores/4714824
# by Hai on StackOverflow:
# http://stackoverflow.com/questions/14951374/didnt-find-class-foo-on-path-dexpathlist
# AOSP tutorial: https://source.android.com/source/index.html


#Create t2.medium instance with 100GB storage
#Initialize build environment
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java6-installer
sudo update-java-alternatives -s java-6-oracle
sudo apt-get install bison g++-multilib git gperf libxml2-utils
sudo apt-get install git
sudo apt-get install flex
sudo apt-get install zip
sudo apt-get install lib32z1

echo "export USE_CCACHE=1" >> ~/.bashrc
echo "PATH=~/bin:$PATH" >> ~/.bashrc
#Reload bash in order to apply changes you've made
mkdir ~/bin
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo
mkdir android
cd android

#Download source
repo init -u https://android.googlesource.com/platform/manifest -b android-4.4.4_r2

#Command below is time consuming, using screen is recommended.
#Due to server overload or exceeding quota this command may fail.
#You should run it again and again to complete it without error message.

repo sync

#Building. It may be time consuming, using screen is not necessary but may be helpful.
prebuilts/misc/linux-x86/ccache/ccache -M 50G
. build/envsetup.sh
lunch 2 #aosp-x86_eng (or sth similar)
make -j4 dalvikvm core dexopt ext framework android.policy services libjavacore

#After that you should have exec ~/android/out/host/linux-x86/bin/dalvikvm

image

#Some references:
# by Huber Flores:
# https://gist.github.com/huberflores/4687766
# https://gist.github.com/huberflores/9886339
# https://gist.github.com/huberflores/4714824
# by Hai on StackOverflow:
# http://stackoverflow.com/questions/14951374/didnt-find-class-foo-on-path-dexpathlist
# AOSP tutorial: https://source.android.com/source/index.html
# by kohviuba on Github: https://github.com/kohviuba/scalingAndroidImages/blob/master/rund.sh

#Compile dalvikvm
#Create t1.micro with 8GB free space

#On bigger machine:
scp -r ~/android/out ubuntu@10.10.10.10:

#On micro machine:
sudo mkdir /opt/android
sudo mv ~/out /opt/android/

#Create file /bin/rund with contents:
  #!/bin/sh
  # base directory, at top of source tree; replace with absolute path
  base=/opt/android
  # configure root dir of interesting stuff
  root=$base/out/host/linux-x86
  export ANDROID_ROOT=$root
  # configure bootclasspath
  bootpath=$base/out/target/product/generic_x86/system/framework
  export BOOTCLASSPATH=$bootpath/core.jar:$bootpath/ext.jar:$bootpath/framework.jar:$bootpath/android.policy.jar:$bootpath/services.jar
  export LD_LIBRARY_PATH=$bootpath/lib:$LD_LIBRARY_PATH
  # this is where we create the dalvik-cache directory; make sure it exists
  export ANDROID_DATA=/tmp/dalvik_$USER
  mkdir -p $ANDROID_DATA/dalvik-cache
  exec dalvikvm -Xdexopt:none $@

sudo ln -s /opt/android/out/host/linux-x86/bin/dx /bin/dx
sudo ln -s /opt/android/out/host/linux-x86/bin/dalvikvm /bin/dalvikvm

#Install dependencies:
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java6-installer
sudo update-java-alternatives -s java-6-oracle
sudo apt-get install lib32z1
sudo apt-get install bison g++-multilib git gperf libxml2-utils

#Here you can create AMI with Amazon console.
#Now you can test your installation, create Foo.java:
public class Foo{

        public static void main (String[] args){

        System.out.println(System.currentTimeMillis() + "");

        System.out.println("Here we do smt");

        System.out.println(System.currentTimeMillis() + "");
        }

}

#Compile it:
javac Foo.java
#Create dex:
dx --dex --output=foo.jar Foo.class
#And run:
rund -cp foo.jar Foo