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[Bug translator/4935] support on-the-fly probe enable/disable syntax
- From: "mhiramat at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 8 Oct 2007 16:49:21 -0000
- Subject: [Bug translator/4935] support on-the-fly probe enable/disable syntax
- References: <20070817183537.4935.fche@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From mhiramat at redhat dot com 2007-10-08 16:49 -------
I'm interested in this feature.
As far as I understand, with this feature, systemtap treats the next script ;
---
probe ALIAS=PROBEPOINT { stmt1; }
probe ALIAS if (expr) { stmt2; }
---
as
---
probe PROBEPOINT { if (!expr) next; stmt1; stmt2}
---
In that case,
---
probe ALIAS=PROBEPOINT { stmt1; }
probe ALIAS if (expr) { stmt2; }
probe ALIAS { stmt3; }
---
will be treated as
---
probe PROBEPOINT { if (!expr) next; stmt1; stmt2}
probe PROBEPOINT { stmt1; stmt3}
---
Is that right?
--
http://sourceware.org/bugzilla/show_bug.cgi?id=4935
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