Hello, I'm learning the perf_events programming interface and I'm not sure if what I'm trying to do is possible. I could only find the perf_event_open documentation, but unfortunately that's not enough for my needs, as it only counts the number of events that happened.
I'm looking for a way to determine which instruction caused some events: something similar to what perf annotate does, but in an online fashion. Ideally, I'd like to have some kind of handler that gets called whenever a perf event occurs. Is that even possible? If not, is there any way I could get this information in a real-time way? I'll be using PEBS or IBS events. Thank you, -Martin
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