how to determine whether the source code is same between two kernels

[Greg KH]

On Wed, May 08, 2019 at 04:52:46PM +0800, wuzhouhui wrote:
> Hi,
> 
> Suppose I have two kernels, one is A.B.C build by people Tom. And
> the other is A.B.C build by Jerry. The source code have been deleted
> after kernel is build and installed. Now I want to know whether the
> source code of these two kernel is the same (even if they have the same
> name). All I have is binaries (e.g. vmlinux, config, *.ko, System.map).
> Is it possible?

Maybe, but not very easily.

Good luck!