On Fri, 17 Apr 2020 16:46:14 +0100 Mark Rutland <mark.rutland@xxxxxxx> wrote: > > > > And doesn't BPF also do stuff like this? > > > > > > Can BPF mess with return addresses now!? > > > > At least on x86 I think it does. But what do I know, I can't operate > > that stuff. Rostedt might know. > > Sounds like I might need to do some digging... May want to ping Alexei. It appears that if BPF adds a direct hook to a function, it will prevent the function graph tracer from tracing it. :-/ -- Steve
