一准备工作



 



1安装javasdk6

(1)从jdk官方网站http://www.oracle.com/technetwork/java/javase/downloads/jdk-6u29-download-513648.html下载jdk-6u29-linux-i586.bin文件。

(2)执行jdk安装文件

 



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1. $chmod a+x jdk-6u29-linux-i586.bin  
2. $jdk-6u29-linux-i586.bin


 

 

(3)配置jdk环境变量

 



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1. $sudo vim /etc/profile


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1. #JAVAEVIRENMENT  
2. exportJAVA_HOME=/usr/lib/java/jdk1.6.0_29  
3. exportJRE_HOME=$JAVA_HOME/jre  
4. exportCLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH  
5. exportPATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH


 

保存后退出编辑,并重启系统。

2安装依赖包

 



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1. $sudo apt-get install git-core gnupg flex bison gperf build-essential\  
2. zipcurlzlib1g-devlibc6-devlib32ncurses5-devia32-libs\  
3. x11proto-core-devlibx11-devlib32readline5-devlib32z-dev\  
4. libgl1-mesa-devg++-multilibmingw32tofrodospython-markdown\  
5. libxml2-utils

 

3用repo工具下载源码

(1)初始化repo

 



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1. $cd ~  
2. $mkdir bin  
3. $curlhttps://dl-ssl.google.com/dl/googlesource/git-repo/repo>~/bin/repo  
4. $chmod a+x ~/bin/repo  
5. $exportPATH=$PATH:~/bin(导出环境变量)


 

 

(2)下载android最新源码

 



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1. $mkdir android  
2. $cd android  
3. $ repo init -u https://android.googlesource.com/platform/manifest -bandroid-4.0.1_r1  
4. ...(输入用户名和邮箱名)  
5. $repo sync -j5  
6. ...(此处用5个线程开始下载源码,下载过程及其漫长,需要耐心等待)



 

 

二 编译源码



 



1开始编译

 



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1. $source build/envsetup.sh  
2. includingdevice/samsung/maguro/vendorsetup.sh  
3.   
4. includingdevice/samsung/tuna/vendorsetup.sh  
5.   
6. includingdevice/ti/panda/vendorsetup.sh  
7.   
8. includingsdk/bash_completion/adb.bash  
9.   
10. $make-j4(此处用4个线程编译)

 

 

编译完成后,会看到类似的输出:

 



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1. Targetramdisk:out/target/product/generic/ramdisk.img  
2. Targetuserdatafsimage:out/target/product/generic/userdata.img  
3. Installedfilelist:out/target/product/generic/installed-files.txt

 

 

2编译遇到的问题

编译错误:

 



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1. <命令行>:0:0:错误:“_FORTIFY_SOURCE”重定义[-Werror]  
2.   
3. <built-in>:0:0:附注: 这是先前定义的位置  
4.   
5. cc1plus:所有的警告都被当作是错误  
6.   
7. make:*** [out/host/linux-x86/obj/EXECUTABLES/obbtool_intermediates/Main.o]错误 1


 

 

原因:

因机器上的gcc版本过高,需替换成4.4.6重新进行编译。

解决方法:

1)安装4.4版本的gcc和g++

 

 



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1. $ sudo apt-get install gcc-4.4  
2. $ sudo apt-get install g++-4.4

 

2)设置gcc版本,使gcc链接到gcc-4.4

 



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1. $ ls -l /usr/bin/gcc*  
2.   
3. lrwxrwxrwx 1 root root      7 2011-11-01 23:56 /usr/bin/gcc -> gcc-4.6  
4.   
5. -rwxr-xr-x 1 root root 224544 2011-10-06 05:47 /usr/bin/gcc-4.4  
6.   
7. -rwxr-xr-x 1 root root 302104 2011-09-17 05:43 /usr/bin/gcc-4.6  
8.   
9. $ cd /usr/bin  
10. $ sudo mv gcc gcc.bak  
11. $ sudo ln -s gcc-4.4 gcc


 

3)设置g++版本,使g++链接到g++-4.4

 



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1. $ sudo mv g++ g++.bak  
2. $ sudo ln -s g++-4.4 g++

 

4)设置完毕后,重新进行编译即可

 

3从模拟器启动编译后的镜像文件

1)设置环境变量:

 



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1. export PATH=~/android/out/host/linux-x86/bin:$PATH  
2.   
3. export ANDROID_PRODUCT_OUT=~/android/out/target/product/generic

 

其中linux-x86/bin存放模拟器emulator工具,product/generic存在编译后的镜像文件。

 

2)启动模拟器

 



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1. $emulator  
2.   
3. emulator:WARNING: system partition size adjusted to match image file (162 MB >66 MB)


 

 

启动后的截图:

 

三 编译androidgoldfish内核



 



1)进入android4.0.1源码目录,下载goldfish内核源码

 



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    1. $ mkdir kernel  
    2. $ cd kernel  
    3. $ git clone http://android.googlesource.com/kernel/goldfish.git  
    4. $ cd goldfish  
    5. $ git branch -a  
    6. * (no branch)  
    7.   
    8.   master  
    9.   
    10. > origin/master  
    11.   
    12.   remotes/origin/android-goldfish-2.6.29  
    13.   
    14.   remotes/origin/master  
    15.   
    16. $ git checkout remotes/origin/android-goldfish-2.6.29



     

     

    2)修改Makefile

     



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    1. goldfish$ gedit Makefile


     

    修改

     



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    1. ARCH                     ?=$(SUBARCH)  
    2. CROSS_COMPILE ?=


     

     



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    1. ARCH                     ?=arm  
    2. CROSS_COMPILE ?=arm-eabi-

     

     

    3)导出交叉编译器目录为环境变量

    $ export PATH=$PATH:~/android/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin

     

    4)编译内核

     



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    1. goldfish$ make goldfish_armv7_defconfig  
    2.   
    3. goldfish$ make

     

     

    编译完成后,可看到类似如下的输出:

     



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    1. OBJCOPY arch/arm/boot/zImage  
    2. Kernel: arch/arm/boot/zImage is ready


     

     

    5)从模拟器中启动内核镜像

     



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    1. $emulator  -kernel ~/android/kernel/goldfish/arch/arm/boot/zImage &

     

    启动模拟器后,可从Settings->System->AboutPhone中查看内核版本信息。