[Bug translator/11739] New: alibi flag

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

For diagnosing problems where some kernel event-source facility
like kprobes or uprobes is implicated in a problem, it is a bit
tricky to reproduce the set of probes used by a systemtap script,
without also dragging in a bunch of the runtime & generated
handler code.

It may be nice to have a compile-time macro option, say -DSTAP_ALIBI,
which disables most of the code actually generated for probe handlers,
turning the kprobes pre_handlers into empty functions.  The resulting
script would of course not run correctly, but should trigger the same
set of probe events.  (Timers may need special treatment due to the
need to restart them, so can't be entirely empty handlers.)

With such a flag used, it may be possible to implicate or exculpate
the trickier parts of systemtap when investigating a crash.

-- 
           Summary: alibi flag
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: fche at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=11739

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