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[Bug translator/10995] on-the-fly enabled/disabled probes
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Tue, 11 Dec 2012 20:23:14 +0000
- Subject: [Bug translator/10995] on-the-fly enabled/disabled probes
- Auto-submitted: auto-generated
- References: <bug-10995-6586@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=10995
--- Comment #2 from Frank Ch. Eigler <fche at redhat dot com> 2012-12-11 20:23:14 UTC ---
bug #6503 added a derived_probe_group code generation function to
emit_module_refresh(). The code this generates would need to be extended with
per-probe predicate/registration-status bits in the runtime, and with code to
do any sort of lightweight arming/disarming that the probe system permits. The
predicate-status bits would be mutexfully maintained by other code that
re-evaluates the probe predicate expressions periodically, or whenever the
input globals are suspected to change value.
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