As far as i know there is Linux for Playstation ##edit## -> Playstation 2
If some Linux GC emu apears maybe it is possible to compile at Playstation 2, but only at interpreter mode, recompiler should need a new recompiler core
Anyway i don't think to some day see a GC comercial game runing at Playstation 2 because RAM memory issues, only homebrews and probably at really low speeds
It is only a theory, and i don't think someday someone will do it too, and i think this is the more easy way because i don't think someone will work on a specific GC emu for playstation 2
i think, i think, i think, ... it seens i don't know too much english words ;-)