Re: [Xenomai] Hang/Reboot when using CONFIG_CC_STACKPROTECTOR_REGULAR

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

On Thu, Apr 30, 2015 at 05:12:09PM +0200, Marc Strämke wrote:
> Am Donnerstag, 30. April 2015, 17:03:54 schrieb Marc Strämke:
> > Am Donnerstag, 30. April 2015, 16:53:52 schrieb Gilles Chanteperdrix:
> > > Is CONFIG_CC_STACKPROTECTOR enabled when you enable the *_REGULAR
> > > option ? The first thing to check is that the xnarch_switch_to
> > 
> > I can confirm that CONFIG_CC_STACKPROTECTOR gets set together with the
> > *_REGULAR option. I am inspecting the disassembly now...
> 
> I compared the disassembly of xnarch_switch_to with and without  the option 
> set. That does like fine to me (even though i do not fully understand each 
> line..). The CANARY_SWITCH gets inserted correctly in to the do_switch_threads 
> inline function.

I guess the next step is to look at what this *_REGULAR option adds
to CONFIG_CC_STACKPROTECTOR in the kernel code, and see if it does
not add something more to switch_to that we should add to
xnarch_switch_to.

-- 
					    Gilles.
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