qualcomm编译指令
Compile the Entire Android Software
source build/envsetup.sh
lunch msm8909-userdebug
make -jn (-n means the thread numbers of CPU)
j表示cpu线程的个数。开启几个线程进行编译。一般和cpu的核心数相同，双核j选2,四核j选4.
After compiling, it will generate many BIN files in directory of out/target/product/msm8909
Compiling Different Parts of Android
1. Compile aboot:
Input Command:
make aboot -jn
Target Folder:
work/LINUX/android/out/target/product/msm8909/
Target File:
emmc_appsboot.mbn
2. Compile kernel:
Input Command:
make bootimage -jn
Target Folder:
work/LINUX/android/out/target/product/msm8909
Target File:
boot.img
3. Compile system:
Input Command:
make systemimage -jn
Target Folder:
work/LINUX/android/out/target/product/msm8909
Target File:
system.img
4. Compile userdata:
Input Command:
make userdataimage -jn
Target Folder:
work/LINUX/android/out/target/product/msm8909
Target File:
userdata.img
5. Compile recovery:
Input Command:
make recoveryimage -jn
Target Folder:
work/LINUX/android/out/target/product/msm8909
Target File:
recovery.img
Tony Liu
2017-4-28, Shenzhen