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[Bug translator/11424] dwarfless kprobe.* probes don't validate at translate time
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 23 Mar 2010 22:00:54 -0000
- Subject: [Bug translator/11424] dwarfless kprobe.* probes don't validate at translate time
- References: <20100323210435.11424.dsmith@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From dsmith at redhat dot com 2010-03-23 22:00 -------
(In reply to comment #1)
> This is because kprobe.* probes cannot currently be tested
> for validity at translate time.
One (not necessarily great) possibility would be to test for validity at run-time.
> If the logic looked through
> a symbol table of some sort, it could work. It could then
> expand wildcards.
>
> session.exported_symbols is actually a plausible source of
> such data, even though it's only a subset. $kernel-builddir/System.map
> is another plausible source.
If we can't get this working, another possibility here would be to disallow '!'
for kprobe.function. This would be better than not working as advertised.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=11424
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