1.Compile code

$ source build/envsetup.sh

$lunch

Build all

$ make –j$(processes number)Build preloader$ make pl –j$(processes number)

Build lk

$ make lk –j$(processes number)

Build kernel

$ make kernel –j$(processes number)

Make bootimage package

$ make bootimage –j$(processes number)

Build android and make system image

$ make systemimage –j$(processes number)