On Tue, 2019-09-10 at 15:03 -0400, Steven Rostedt wrote: > On Tue, 10 Sep 2019 11:42:06 -0700 [] > > btw: > > > > Is there kernel version information available in > > trace output files? > > Not really. This is just a library that parses the trace event formats, > there's not kernel versions passed in, but we do use variations in > formats and such to determine what is supported. > > > If so, it might be reasonable to change the tooling > > there instead. > > > > Actually, I think we could just look to see if "%pfw" is used and fall > to that, otherwise consider it an older kernel and do it the original > way. Well, if you think that works, OK great. But could that work? How would an individual trace record know if another trace record used %pfw? Perhaps not reusing %pf, marking it reserved for a period of years, and using another unused prefix %p<type> like %pnfw may be simpler.
