Re: systemtap-1.0.0 runtime failure on ARM - simple stap script translation fails

[Eugeniy Meshcheryakov <eugen at debian dot org>]

14 ÐÑÑÐÐÑ 2009 Ð 17:55 +0530 Indraneel Mukherjee ÐÐÐÐÑÐÐ(-ÐÐ):
> On Mon, Dec 14, 2009 at 4:30 PM, Eugeniy Meshcheryakov <eugen@debian.org> wrote:
> > Yes, I know about that problem. But I'm not sure whether proposed patch
> > fixes anything. Were you able to _use_ modules made with that patch applied?
> 
> Yes, i was able to _use_ SystemTap on ARM after applying that patch +
> your fix. I ran the following script and it worked absolutely fine:
Hmm, that's strange. But thanks for the information. I'll look what it
is possible to do.

> 
> global reads
> probe kernel.function("do_writepages") {
>         reads[execname()]++
>         }
> probe timer.s(3)
> {
>         foreach (count in reads)
>                 printf("%s : %d \n", count, reads[count])
> }
> 
> OUTPUT of script:
> pdflush : 4
> pdflush : 4
> pdflush : 8
> pdflush : 8
> pdflush : 12
> pdflush : 12
> pdflush : 12
> ...
> ...
> > Or does it fixes only compilation? My guess is that module
> > initialization will fail because build-id does not match.
> 
> No it does not fail.
> 
> Regards,
> Indro
> 
> >
> > 14 ÐÑÑÐÐÑ 2009 Ð 16:11 +0530 Indraneel Mukherjee ÐÐÐÐÑÐÐ(-ÐÐ):
> >> Thanks for the fix. Also, there was another patch that i had to apply
> >> to get Systemtap working for ARM. I checked the latest git and the fix
> >> is not available for ARM. The fix is here:
> >> http://sources.redhat.com/ml/systemtap/2009-q4/msg00574.html
> >> Without the above fix, the ARM(arm-linux is non-relocatable) stap FAILS.
> >>
> >> This is related to
> >> http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg690166.html
> >>
> >> Shouldn't this fix be added to the Systemtap tree to get it right for ARM?
> >
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