[PATCH 4/6] Implement support for SystemTap probes
Tom Tromey
tromey@redhat.com
Thu Apr 7 17:04:00 GMT 2011
>>>>> "Yao" == Yao Qi <yao@codesourcery.com> writes:
>> + pc_probe = find_probe_by_pc (pc, &objfile);
Yao> I don't understand this part. We are looking for probe by matching
Yao> frame's PC here, but address of stap_probe is the address where the
Yao> probe is inserted. So, probably, we can't find any probe here, is that
Yao> correct?
I believe that the frame PC here actually is the location of the probe.
Is there a situation where this would not be the case?
stap-probe.exp specifically checks this code, by evaluating probe
arguments at a probe point.
Tom
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