Android: m, mm以及mmm编译命令以及make snod的使用

http://blog.csdn.net/renzhi_zhang/article/details/8555429

http://elinux.org/Android_Build_System

http://blog.csdn.net/hunter168_wang/article/details/51674299

http://blog.csdn.net/u011913612/article/details/52503318

1）编译指定Package

Android源码目录下的build/envsetup.sh文件，描述编译的命令

m：       编译所有的模块 
mm：   编译当前目录下的模块，当前目录下要有Android.mk文件 
mmm：编译指定路径下的模块，指定路径下要有Android.mk文件 

要想使用这些命令，首先需要在android源码根目录执行. build/envsetup.sh 脚本设置环境

下面举个例子说明，假设我要编译android下的packages/apps/Settings模块，当前目录为源码根目录，方法如下： 

rzzhang@rzzhang-desktop:~/workspace$ source build/envsetup.sh 
rzzhang@rzzhang-desktop:~/workspace$ mmm packages/apps/Settings/

...

Processing target/product/generic/obj/APPS/SettingsTests_intermediates/package.apk
Done!
Install: out/target/product/generic/data/app/SettingsTests.odex
Install: out/target/product/generic/data/app/SettingsTests.apk
make:离开目录“/home/rzzhang/workspace”

或者

rzzhang@rzzhang-desktop:~/workspace$ source build/envsetup.sh

rzzhang@rzzhang-desktop:~/workspace$ cd packages/apps/Settings/
rzzhang@rzzhang-desktop:~/workspace/packages/apps/Settings$ mm

2）重新生成sysem.img

使用make snod，重新生成system.img

rzzhang@rzzhang-desktop:~/workspace$ make snod

make snod: ignoring dependencies
Target system fs image: out/target/product/generic/system.img