> > After building dtrace into the kernel and loading the dtraceall > > kernel module, when I load my bxe kernel module and run "dtrace -l" > > to list all supported probes I notice that many functions have an > > entry probe but no exit probe. This effectively prevents me from > > calculating timestamps on "fbt:if_bxe::return" probes. Why am I > > seeing this behavior? > > Tail call optimization could do that to you: > http://en.wikipedia.org/wiki/Tail_call
How to disable tail call optimization when building my driver? Dave _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
