A few basic Lisp commands while in debugger (gdb)?

Hi,

I remember vaguely that there have been added a few useful, simple
functions for Lisp, which can be used during a gdb session, but I
can't currently find them...

Could anybody please point me to them?

Thanks,

Paul


P.S. This would probably help debugging an android thread issue,
happening only on a few recent devices; at least I already figured how
to run gdbserver on android, and debug from the PC.