[Bug translator/14924] New: warn on complex $ptr->foo expressions in .return probes

["fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=14924

             Bug #: 14924
           Summary: warn on complex $ptr->foo expressions in .return
                    probes
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
        AssignedTo: systemtap@sourceware.org
        ReportedBy: fche@redhat.com
    Classification: Unclassified


Some users are confused by stap's automatic function-call entry-time
snapshotting of $foo->bar->baz expressions in .return probes.  While it's
probably not a good idea to change the behavior (maybe not even with
--compatible), we could emit a warning, referencing @entry() (see also bug
#14437).

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