查看“MYZR-I.MX6-DEMO Android4.4.2环境搭建”的源代码

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=安装ubuntu12.04(install ubuntu12.04)=
(如果使用下载明远智睿的虚拟机，请直接跳到 下载源码并解压 这一节)<br>
<span style="background:#CCCCCC">（if virtual machine downloaded from MYZR is going to be used,please skip to the section"download source code and decompress"</span><br>
在这里建议用户使用64bit的ubuntu12.04的操作系统，已经真机编译验证过。<br>
<span style="background:#CCCCCC">here it is recommended to users to use operating system of 64bit ubuntu12.04 of which has been proven in compilation by real machine</span><br>

=安装JDK1.6 SE(install JDK1.6 SE)=
登陆[http://http://www.myzr.com.cn http://www.myzr.com.cn]的下载专区，下载jdk-6u45-linux-x64.bin文件<br>
<span style="background:#CCCCCC">login in downloads of http://www.myzr.com.cn, to download jdk-6u45-linux-x64.bin</span><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>
增加以下环境变量<br>
<span style="background:#CCCCCC">add the following environment variables</span><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>
（看到版本为1.6.0_45就表示成功）<br>
<span style="background:#CCCCCC">(when version 1.6.0_45 is seen,which represent a success)</span><br>

=安装编译Android系统所需要的库(install libraries needed to compile Android system)=
(详细信息，请看网站[http://source.android.com/source/initializing.html 
http://source.android.com/source/initializing.html]<br>
<span style="background:#CCCCCC">for detailed information, please visit [http://source.android.com/source/initializing.html 
http://source.android.com/source/initializing.html]</span><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>

=下载源码并解压源码(download source code and decompress)=
==下载源码(download source code)==
登陆[http://http://www.myzr.com.cn http://www.myzr.com.cn]=下载专区下载Android4.2源码<br>
<span style="background:#CCCCCC">login downloads in http://www.myzr.com.cn to download source code of Android4.2</span><br>
Android4.4的分卷压缩解压后的源码包：myzr_android-4.4.2_r1.tar.bz2<br>
<span style="background:#CCCCCC">source code package of Android4.4 sub-volume compression decompressed is :</span><br>

==解压源码(decompress source code)==
$ mkdir ~/myandroid<br>
$ cd ~<br>
$ tar -jxvf myzr_android-4.4.2_r1.tar.bz2 –C ~/myandroid<br>

==编译源码（Android系统）(compile source code(Android system))==
===设置环境变量(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>

===编译uboot(compile uboot)===
$ cd ~/myandroid/bootable/bootloader/uboot-imx<br>
$ make distclean<br>
$ make mx6q_sabresd_android_config			(四核配置)<br>
<span style="background:#CCCCCC">$ make mx6q_sabresd_android_config (quadruple core configuration)</span><br>
或 $ make mx6dl_sabresd_android_config			(双核简化配置)<br>
<span style="background:#CCCCCC">or $ make mx6dl_sabresd_android_config (dual core tile configuration)</span><br>
或 $ make mx6solo_sabresd_android_config			(单核配置)<br>
<span style="background:#CCCCCC">or $ make mx6solo_sabresd_android_config (single core configuration)</span><br>
$ make<br>

===编译kernel(compile kernel)===
$ cd ~/myandroid/kernel_imx<br>
$ make imx6_android_defconfig<br>
$ make uImage<br>

===编译bootimg (uImagel和ramdisk)(compile bootimg (uImagel and ramdisk))===
$ cd ~/myandroid<br>
$ source build/envsetup.sh<br>
$ lunch sabresd_6dq-user	(此为发布版本，调试版本改成lunch sabresd_6dq-eng)<br>
<span style="background:#CCCCCC">lunch sabresd_6dq-user (this is release version,debug version is changed to be lunch sabresd_6dq-eng)</span><br>
$ make bootimage<br>

===编译system(compile system)===
$ cd ~/myandroid<br>
$ source build/envsetup.sh<br>
$ lunch sabresd_6dq-user (此为发布版本，调试版本改成lunch sabresd_6dq-eng)<br>
<span style="background:#CCCCCC">$ lunch sabresd_6dq-user (this is release version,debug version is changed to be lunch sabresd_6dq-eng)</span><br>
$ make<br>


注意：生成的u-boot.bin在~/myandroid/bootable/bootloader/uboot-imx目录下，boot.img和recovery.img和system.img在~/myandroid/out/target/product/sabresd_6dq目录下。<br>
<span style="background:#CCCCCC">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</span><br>
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