"... it should be relatively easy to adapt the code to work correctly with your other GDB and LLDB targets from Visual Studio". Right now it targets the version of GDB that ships with Android NDK 17+ and the version of LLDB that Microsoft ships to support iOS debugging.
Also there is a link that shows how to remote debug a Linux process from Visual Studio - http://blogs.msdn.com/b/vcblog/archive/2015/04/29/debug-c-co...