On Wed, 9 Oct 2024 20:56:47 -0400 Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > I was thinking if something like objtool (could be something else that can > read the executable code) and know of where functions are. It could just > see if anything tests rdi, rsi, rdx, rcx, r8 or r9 (or their 32 bit > alternatives) for NULL before using or setting it. > > If it does, then we know that one of the arguments could possibly be NULL. Oh, and it only needs to look at functions that are named: trace_event_raw_event_*() -- Steve