> > It's also possible to put probes on the return instruction of the > > function. I'm not sure how they're actually finding that, though. > I think the return probe is done by adding a call probe that changes the > return address. Yeah, I thought that when I first saw it, but the probe is passed the address of the return instruction when it fires, and I can't see how you could get that if it was just invoked by modifying the return address on the call stack.
Steven.
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