Messages in this thread | | | Date | Wed, 16 Apr 2008 10:54:40 -0400 | From | Mathieu Desnoyers <> | Subject | Re: [TEST PATCH] Test NMI kprobe modules |
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* Ingo Molnar (mingo@elte.hu) wrote: > > * Mathieu Desnoyers <compudj@krystal.dyndns.org> wrote: > > > +long debug_eip, debug_cs, debug_eflags, debug_extra, debug_extra2, debug_extra3, debug_extra4; > > +long debugo_eip, debugo_cs, debugo_eflags, debugo_extra, debugo_extra2, debugo_extra3, debugo_extra4; > > +EXPORT_SYMBOL(debug_eip); > > +EXPORT_SYMBOL(debug_cs); > > +EXPORT_SYMBOL(debug_eflags); > > +EXPORT_SYMBOL(debug_extra); > > +EXPORT_SYMBOL(debug_extra2); > > +EXPORT_SYMBOL(debug_extra3); > > +EXPORT_SYMBOL(debug_extra4); > > +EXPORT_SYMBOL(debugo_eip); > > +EXPORT_SYMBOL(debugo_cs); > > +EXPORT_SYMBOL(debugo_eflags); > > +EXPORT_SYMBOL(debugo_extra); > > +EXPORT_SYMBOL(debugo_extra2); > > +EXPORT_SYMBOL(debugo_extra3); > > +EXPORT_SYMBOL(debugo_extra4); > > ok, while this is a test patch of yours, lets make one thing sure: all > things hook-alike instrumentation _MUST_ and will stay stay GPL > exported. It's all very internal, and there will be no automatic, > programmable interface stability guarantees for any of the markers that > kabi crap could come and shackle the kernel with ... (it will all be > stable to SystemTap of course - but SystemTap is a kernel-internal > entity in that regard) > > Ingo >
Yes, I agree. This patch is just an ugly test-hack. :)
I already designed my LTTng tracer so it follows changes to the internal kernel structures as easily as possible, but yes, it is kernel internal too.
Mathieu
-- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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