Build android with ASan and HWASan

[Lee Prime]

I have downloaded android-master branch and compile it with HWASan successfully. 

I want to build another with ASan. How can I build the same source code? 

One of my solutions is that copy the source code to another dir. Compile it with ASan option. But It costs 2x source code volume. That's a  bad idea.

I expect that two kinds of output (HWASan and ASan output)  both exist in /out/ sub directory. 

How can I make it ?