From: Sylvain Fourmanoit <syfou@users.sourceforge.net>
To: systemtap@sourceware.org
Subject: Matching function parameters and corresponding return value
Date: Tue, 13 Jun 2006 22:20:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.64.0606131800540.5501@sylvain> (raw)
Hi all,
I would like to watch calls to a preemptible function such as sys_open():
ideally, I would like to know both the tentatively accessed files and the
success (or not) of the various calls.
But I don't see how to do this: of course, I can without problem
register a jprobe and a kretprobe on sys_open(), both how do I correlate
pairs of probe calls reliably? Or is it just the wrong approach?
Any insight on how to do this, either with SystemTap or directly
with Kprobes would be really appreciated!
--
Sylvain <syfou@users.sourceforge.net>
"Don't fear the pen. When in doubt, draw a pretty picture."
--Baker's Third Law of Design.
next reply other threads:[~2006-06-13 22:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-13 22:20 Sylvain Fourmanoit [this message]
2006-06-13 23:15 ` Li Guanglei
2006-06-14 18:04 ` Martin Hunt
2006-06-14 14:25 ` Frank Ch. Eigler
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