How To Modify Android Emulator Source Code

I would like to modify qemu source code to get some lower level information from Android emulator. Where do I get Android emulator source code ? (I assume the source might include

Solution 1:

Where do I get Android emulator source code

It's here

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To build it : build-emulator.sh

which is located here

--- EDIT: now here: https://android.googlesource.com/platform/external/qemu/+/master/docs/DEVELOPMENT.TXT