查看“MYZR-RK3288-EK314 ANDROID5.1 编译手册”的源代码

=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openjdk1.7(install openjdk1.7)=
运行一下命令安装openjdk1.7<br>
<span style="background:#CCCCCC">execute command to install openjdk1.7</span><br>
sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"<br>
sudo apt-get update<br>
sudo apt-get install openjdk-7-jdk<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/lib/jvm/java-7-openjdk-amd64/<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1.7.0_121就表示成功）<br>
<span style="background:#CCCCCC">(when version 1.7.0_121 is seen,which represent a success)</span><br>
[[文件:my-rk32-ek314_android_2.1.1.png]]<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)<br>
<span style="background:#CCCCCC">( for detailed information, please visit 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 \
 g++-multilib mingw32 tofrodos gcc-multilib ia32-libs \
 python-markdown libxml2-utils xsltproc zlib1g-dev:i386 \
 lzop libssl1.0.0 libssl-dev<br>
 [[文件:my-rk32-ek314_android_3.1.1.png]]<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://www.myzr.com.cn下载专区下载Android5.1源码<br>
<span style="background:#CCCCCC">login downloads in http://www.myzr.com.cn to download source code of Android5.1</span><br>
Android5.1.1的分卷压缩解压后的源码包：rk32-myzr_android5.1_20180328.tar.bz2<br>
<span style="background:#CCCCCC">source code package of Android5.1 sub-volume compression decompressed is :</span><br>

==解压源码(decompress source code)==
$ mkdir ~/rk3288-myzr<br>
$ tar jxvf rk32-myzr_android5.1_20180328.tar.bz2 -C ~/rk3288-myzr/<br>
[[文件:my-rk32-ek314_android_5.1.1.png]]<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=~/rk3288-myzr/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-<br>
[[文件:my-rk32-ek314_android_6.1.1.png]]<br>
$ ${CROSS_COMPILE}gcc -v<br>
[[文件:my-rk32-ek314_android_6.1.2.png]]<br>

==编译uboot(compile uboot)==
*进入U-BOOT代码目录<br>
<span style="background:#CCCCCC">enter U-BOOT code directory</span><br>
$ cd ~/rk3288-myzr/u-boot/<br>
*设置配置文件<br>
<span style="background:#CCCCCC">set up configuration file</span><br>
$ make rk3288_defconfig<br>
*编译<br>
<span style="background:#CCCCCC">compile</span><br>
$ make<br>
[[文件:my-rk32-ek314_android_6.2.1.png]]<br>
*目标文件<br>
<span style="background:#CCCCCC">target file</span><br>
[[文件:my-rk32-ek314_android_6.2.2.png]]<br>

==编译kernel(compile kernetl)==

不同的显示屏类型对于不同的镜像，在下表中列出。<br>
<span style="background:#CCCCCC">different display types for different images are listed in the following table.</span><br>
{| class="wikitable"
|-
!span style="color:#FFFFFF;background:#000080"|评估板型号<br>(evaluation board model no.)		
!span style="color:#FFFFFF;background:#000080"|LCD	
!span style="color:#FFFFFF;background:#000080"|配置<br>(configuration)
|-
|rowspan=3|MY-RK3288-EK314	
|LVDS(1024X600)
|rk3288-myzr_rh568_lvds.img
|-
	
|HDMI(1920X1080)
|rk3288-myzr_rh568_hdmi.img
|-

|EDP(1920X1080)
|rk3288-myzr_rh568_edp.img
|}

*进入内核代码目录<br>
<span style="background:#CCCCCC">enter kernel code directory</span><br>
$ cd ~/rk3288-myzr/kernel/<br>
*清除内核配置<br>
<span style="background:#CCCCCC">clear kernel configuration</span><br>
$ make distclean<br>
[[文件:my-rk32-ek314_android_6.3.1.png]]<br>
*设置配置文件<br>
<span style="background:#CCCCCC">set up configuration file</span><br>
$ make rk3288-myzr_defconfig<br>
[[文件:my-rk32-ek314_android_6.3.2.png]]<br>
*编译(以LVDS为例)<br>
<span style="background:#CCCCCC">compile(for example: LVDS)</span><br>
$ make -j8 rk3288-myzr_rh568_lvds.img<br>
说明：截图中使用了8线程编译。<br>
<span style="background:#CCCCCC">instruction：8 threads compilation is used in the screenshots</span><br>
[[文件:my-rk32-ek314_android_6.3.3.png]]<br>
*编译完成<br>
<span style="background:#CCCCCC">complete compilation</span><br>
[[文件:my-rk32-ek314_android_6.3.4.png]]<br>
*目标文件<br>
<span style="background:#CCCCCC">target file</span><br>
kernel.img和resource.img即为编译得到的目标文件，使用ls命令可查看文件信息。<br>
<span style="background:#CCCCCC">Kernel.img and resource.img are the compiled target files. Use the ls command to view the file information.</span><br>
$ ls <br>
[[文件:my-rk32-ek314_android_6.3.5.png]]<br>

==编译android源码(compile android code)==
*设置android环境变量<br>
<span style="background:#CCCCCC">set android environment variables</span><br>
$ cd ~/rk3288-myzr/<br>
$ source build.sh<br>
[[文件:my-rk32-ek314_android_6.4.1.png]]<br>
*设置android版本配置<br>
<span style="background:#CCCCCC">set android version configuration</span><br>
$ lunch rk3288_box-userdebug <br>
[[文件:my-rk32-ek314_android_6.4.2.png]]<br>
*编译<br>
<span style="background:#CCCCCC">compile</span><br>
$ make -j16<br>
说明：截图中使用了16线程编译。<br>
<span style="background:#CCCCCC">instruction：16 threads compilation is used in the screenshots</span><br>
[[文件:my-rk32-ek314_android_6.4.3.png]]<br>
*编译完成<br>
<span style="background:#CCCCCC">complete compilation</span><br>
[[文件:my-rk32-ek314_android_6.4.4.png]]<br>
*目标文件<br>
<span style="background:#CCCCCC">target file</span><br>
boot.img，misc.img，kernel.img，resource.img，recovery.img，system.img即为编译得到的目标文件，使用ls命令可查看文件信息。<br>
<span style="background:#CCCCCC">boot.img，misc.img，kernel.img，resource.img，recovery.img，system.img are the compiled target files. Use the ls command to view the file information.</span><br>
$ ./mkimage.sh<br>
$ ls rockdev/Image-rk3288_box/<br>
[[文件:my-rk32-ek314_android_6.4.5.png]]<br>


=打包批量文件relase_android_update.img(pack relase_android_update.img)=

==编译打包工具(compile packaging tools)==
注意：如果编译了rk2918_tools.tar.bz2，就不需要重新编译了，可以跳过这个步骤。<br>
<span style="background:#CCCCCC">Note: If you have compiled rk2918_tools.tar.bz2, you do not need to recompile. You can skip this step.</span><br>
默认复制rk2918_tools.tar.bz2到目录~/rk3288-myzr/rockdev下<br>
<span style="background:#CCCCCC">copy rk2918_tools.tar.bz2 to directory ~/rk3288-myzr/rockdev by default</span><br>
$ cd ~/rk3288-myzr/rockdev<br>
$ tar jxf rk2918_tools.tar.bz2<br>
$ cd rk2918_tools/<br>
$ make -j4<br>
$ sudo cp afptool img_unpack img_maker mkkrnlimg /usr/local/bin/<br>
[[文件: my-rk32-ek314build_7.1.1.jpg]]<br>


==新建文件夹和复制镜像(new folder and copy image)==
rockdev/Image-rk3288_box/的文件对应烧写工具Image\android文件夹中，rk3288box-3.10-uboot-ubuntu.parameter.txt重命名为parameter，RK3288UbootLoader_V2.30.10.bin对应RKLoader.bin，update-script和recover-script在烧写工具里面复制。package-file的内容重新按对应的文件重命名，如下：<br>
<span style="background:#CCCCCC">The file of "rockdev/Image-rk3288_box/" corresponds to the file of "Image\android", rk3288box-3.10-uboot-android.parameter.txt is renamed to parameter, RK3288UbootLoader_V2.30.10.bin corresponds to RKLoader.bin, update-script and The recover-script is copied by the burning tool. The contents of the package-file are renamed according to the corresponding file, as follows:</span><br>
[[文件: my-rk32-ek314_android_7.1.1.png]]<br>

$ mkdir -p rockdev/android/Image <br>
$ cd rockdev/android/Image/ <br>
$ cp ~/rk3288-myzr/rockdev/Image-rk3288_box/* ./ <br>
$ rm pc* <br>
$ $ ls <br>
[[文件: my-rk32-ek314_android_7.1.2.png]]<br>


==打包relase_android_update.img文件(pack relase_android_update.img)==
$ afptool -pack . ../update.img <br>
$ img_maker -rk32 RKLoader.bin update.img relase_android_update.img<br>
[[文件: my-rk32-ek314_android_7.1.3.png]]<br>