Excerpts from Christophe Leroy's message of June 11, 2020 10:26 pm: > > > Le 11/06/2020 à 14:11, Nicholas Piggin a écrit : >> blrl is not recommended to use as an indirect function call, as it may >> corrupt the link stack predictor. >> >> This is not a performance critical path but this should be fixed for >> consistency. > > There's exactly the same in entry_32.S > Should it be changed there too ... for consistency :) ? > > ppc32 also uses blrl for calling syscall handler, should it be changed > as well ?
Yes I would say so. I don't know much about 32-bit implementations but MPC7450 at least has a link stack predictor. Thanks, Nick
