查看“MYZR-IMX6 Android-4.4.2 Build Manual”的源代码

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= Install ubuntu12.04=
（If virtual machine downloaded from MYZR is going to be used,please skip to the section"download source code and decompress").<br>
Here it is recommended to users to use operating system of 64bit ubuntu12.04 of which has been proven in compilation by real machine.<br>

=Install JDK1.6 SE=
Login in downloads of http://www.myzr.com.cn, to download jdk-6u45-linux-x64.bin <br>
$ cd /usr<br>
$ sudo mkdir java<br>
$ cd java<br>
$ sudo cp ~ /jdk-6u45-linux-x64.bin ./<br>
$ sudo chmod 777 ./jdk-6u45-linux-x64.bin<br>
$ sudo ./jdk-6u45-linux-x64.bin<br>
$ sudo gedit /etc/profile<br>
Add the following environment variables<br>
export JAVA_HOME=/usr/java/jdk1.6.0_45<br>
export JRE_HOME=$JAVA_HOME/jre<br>
export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH<br>
export PATH=$JAVA_HOME/bin:$PATH:$JRE_HOME/bin<br>
$ source /etc/profile<br>
$ java –version<br>
(When version 1.6.0_45 is seen,which represent a success)<br>

=Install libraries needed to compile Android system=
For detailed information, please visit [http://source.android.com/source/initializing.html 
http://source.android.com/source/initializing.html]<br>
$ sudo apt-get install git gnupg flex bison gperf build-essential zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 libgl1-mesa-dev g++-multilib mingw32 tofrodos python-markdown libxml2-utils xsltproc zlib1g-dev:i386<br>
$ sudo ln -s /usr/lib/i386-linux-gnu/mesa/libGL.so.1 /usr/lib/i386-linux-gnu/libGL.so<br>
$ sudo apt-get install uuid uuid-dev<br>
$ sudo apt-get install zlib1g-dev liblz-dev<br>
$ sudo apt-get install liblzo2-2 liblzo2-dev<br>
$ sudo add-apt-repository ppa:git-core/ppa<br>
$ sudo apt-get update<br>
$ sudo apt-get install git-core curl<br>

=Download source code and decompress=
==Download source code==
Login downloads in http://www.myzr.com.cn to download source code of Android4.2 <br>
Source code package of Android4.4 sub-volume compression decompressed is :<br>

==Decompress source code==
$ mkdir ~/myandroid<br>
$ cd ~<br>
$ tar -jxvf myzr_android-4.4.2_r1.tar.bz2 –C ~/myandroid<br>

==Compile source code(Android system)==
===Set environment variables===
$ export ARCH=arm<br>
$ export CROSS_COMPILE=~/myandroid/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-
$ export PATH=~/myandroid/bootable/bootloader/uboot-imx/tools:$PATH<br>

===Compile uboot===
$ cd ~/myandroid/bootable/bootloader/uboot-imx<br>
$ make distclean<br>
$ make mx6q_sabresd_android_config       (quadruple core configuration)<br>
or $ make mx6dl_sabresd_android_config   (dual core tile configuration)<br>
or $ make mx6solo_sabresd_android_config (single core configuration)<br>
$ make<br>

===Compile kernel===
$ cd ~/myandroid/kernel_imx<br>
$ make imx6_android_defconfig<br>
$ make uImage<br>

===Compile bootimg (uImagel and ramdisk)===
$ cd ~/myandroid<br>
$ source build/envsetup.sh<br>
$ lunch sabresd_6dq-user (this is release version,debug version is changed to be lunch sabresd_6dq-eng)<br>
$ make bootimage<br>

===Compile system===
$ cd ~/myandroid<br>
$ source build/envsetup.sh<br>
$ lunch sabresd_6dq-user (this is release version,debug version is changed to be lunch sabresd_6dq-eng)<br>
$ make<br>

Note: u-boot.bin generated is in the directory of ~/myandroid/bootable/bootloader/uboot-imx,boot.img and recovery.img and system.img are in the directory of ~/myandroid/out/target/product/sabresd_6dq<br>
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