[Bug 1455] Support of atomic operations in RTEMS

bugzilla-daemon at rtems.org bugzilla-daemon at rtems.org
Fri Jun 25 02:10:14 CDT 2010


--- Comment #4 from Sebastian Huber <sebastian.huber at embedded-brains.de> 2010-06-25 02:10:12 CDT ---
(In reply to comment #3)
> (In reply to comment #2)
> > I will look at merging this as part of the SMP work I am doing now.
> It is useless for SMP.  They specifically say it is not SMP safe.
> So I won't be merging this.  If someone wants to invest the effort
> in it, please discuss it on the list and tackle it.

My main focus was on the API not the implementation.  They say that "The
current set of atomic operations do not necessarily guarantee atomicity across
multiple processors." It is up to us to give this guarantee.  On the other hand
the question is if this guarantee is useful.

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