On Mon, May 19, 2025 at 12:08:37PM -0400, Steven Rostedt wrote: > On Mon, 19 May 2025 16:12:39 +0100 > Will Deacon <w...@kernel.org> wrote: > > > > Perf events work for perf only. My question is why isn't this a tracepoint > > > that perf could hook into? > > > > Well, the perf event came first in this case, so we're stuck with it :/ > > I wonder what effort it will take to convert perf events to tracepoints ;-) > > Note, I'm talking about tracepoints and not trace events, where the > latter is exposed to tracefs and the former is not. > > > > > I was hoping we could settle for a generic helper that could emit both > > the trace event and the perf event (so that the ordering of the two is > > portable across architectures) but, judging by Nam's reply, the trace > > event is needed before kprobes gets a look in. > > Perhaps we could add a helper function that does both (perf and > tracepoint) and hide the implementation from the code that calls it?
Something like that sounds like a good idea, yes. > But I'm currently still on PTO so I haven't looked at the details yet. Enjoy! Will
