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[Bug translator/10796] thread-specific globals
- From: "jkenisto at us dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 26 Oct 2009 16:02:54 -0000
- Subject: [Bug translator/10796] thread-specific globals
- References: <20091016222303.10796.jistone@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From jkenisto at us dot ibm dot com 2009-10-26 16:02 -------
(In reply to comment #1)
> If we get this such that it performs better than plain "array[tid()]"
> mechanisms, then we should port the .return $target saving to use this feature.
If you're going to revise that feature, consider using
kretprobe_instance->data[] to store such data between call and return. That's
what it was designed for. See PR #5916 and section 1.3.2 of
Documentation/kprobes.txt.
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http://sourceware.org/bugzilla/show_bug.cgi?id=10796
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