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[Bug translator/14924] warn on complex $ptr->foo expressions in .return probes
- From: "jistone at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Tue, 08 Nov 2016 18:54:06 +0000
- Subject: [Bug translator/14924] warn on complex $ptr->foo expressions in .return probes
- Auto-submitted: auto-generated
- References: <bug-14924-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=14924
--- Comment #5 from Josh Stone <jistone at redhat dot com> ---
If you're going to make a broad warning, please do switch the tapsets to share
in the users' pain. (i.e. don't suppress the warning -- dogfood it)
But again, remember PR18579 that autocast @entry($foo)->bar doesn't work,
whereas it does work with implicit entry-value saving. Maybe this can be
partially kludged by special-casing @entry on a plain target value.
IIRC, @entry doesn't use kretprobe pouches either, for the similar reason that
the expression type may not be fully known yet.
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