Experimental Physics and
Industrial Control System

Ben Franksen via Tech-talk <tech-talk at aps.anl.gov> · Thu, 7 Oct 2021 16:29:08 +0200

Hi Andrew

Am 06.10.21 um 17:13 schrieb Johnson, Andrew N.:

On Oct 6, 2021, at 2:51 AM, Ben Franksen via Tech-talk
<tech-talk at aps.anl.gov<mailto:tech-talk at aps.anl.gov>> wrote:

I am getting lots of build errors when I try to build
iocStats-3.16.1 for RTEMS-5 (using base-7.0.6). We compile for the
BSPs mvme2100 and beatnik.

Has anyone perhaps already been through that and would be willing to
share?

We have not yet, but we’re going to need it to support that OS soon,
so I should be able to offer some help from the APS with code reviews
and maybe more.

Okay, thanks. The main problem seems to be that the CPU load

measurements rely on internal data structures that have changed from

4.10 to 5. Porting this code is going to be messy. It would be ideal if

RTEMS-5 had a stable API for this stuff and perhaps it has, nowadays,

but I haven't investigated this yet.

The iocStats module could use a major overhaul but it doesn’t really
have a maintainer at the moment and it isn’t clear which parts are
being used by which labs — nobody wants to rip out stuff that another
lab might still be using.

Do you have MVME2100 boards running RTEMS-5 yet?

Not yet. Still busy trying to get our support modules to build.

Any issues with them
that should be fed back to Base?

Again, not yet, except one fix but that applies to all base and RTEMS

versions for this board, which I made a long time ago and never came

around to pushing upstream. I attached a patch file, it fixes a bad rule

that can fail if run in parallel.

Anything else I will report if/when it comes up. The release notes

mention that mvme2100 BSP needs patches but doesn't provide any details.

So far I found one rather trivial issue: its bsp.h misses a declaration

for bsp_reset() (the function itself is there).

Cheers
Ben
--
"This work was strictly voluntary, but any animal who absented himself
from it would have his rations reduced by half."
                                         -- George Orwell, Animal Farm

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System