On Fri, 20 Aug 2021 09:46:39 +0900 Masami Hiramatsu mhiramat@kernel.org wrote:
+echo "$SYNTH u64 filename; s64 ret;" > synthetic_events +echo "hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger +echo "hist:keys=common_pid:filename=$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,$filename,$ret)" > events/$SYSTEM/$END/trigger
Hmm, can you make this more simple one without synthetic events? Since synthetic event depends on CONFIG_SYNTH_EVENTS, you need to add "synth_events" to 'requires' tag. However, this means that this testcase doesn't run when CONFIG_SYNTH_EVENTS=n but CONFIG_*PROBE_EVENTS=y.
Sure. I just used this because it was one of the main purposes I was using it for. I may keep this as a test, but will rename it as something else, and make a more simple one for just testing the event probe add and removal.
-- Steve