[GSoC 2020: Daily Update]: Building EPICS with RTEMS5

[Joel Sherrill]

On Sun, Jul 5, 2020, 6:12 PM Chris Johns <chrisj at rtems.org> wrote:

> On 6/7/20 12:47 am, Heinz Junkes wrote:
> > Thank you, this is exactly where I was unsure.
> > @Chris: Can you give a recommendation here?
> > Danke Heinz
> >
> ------------------------------------------------------------------------------
> > Fritz-Haber-Institut    | Phone:         (+49 30) 8413-4270
> > Heinz Junkes             | Fax (G3+G4):   (+49 30) 8413-5900
> > Faradayweg 4-6        | VC: 102220181216 at bjn.vc
> > D - 14195 Berlin        | E-Mail:        junkes at fhi-berlin.mpg.de
> >
> ------------------------------------------------------------------------------
> >
> >> On 5. Jul 2020, at 16:20, Gedare Bloom <gedare at rtems.org> wrote:
> >>
> >> On Sat, Jul 4, 2020 at 1:18 PM Mritunjay Sharma
> >> <mritunjaysharma394 at gmail.com> wrote:
> >>>
> >>>
> >>>
> >>> On Sun, Jul 5, 2020 at 12:28 AM Heinz Junkes <junkes at fhi-berlin.mpg.de>
> wrote:
> >>>>
> >>>> Hello, Mritunjay,
> >>>> that's good news. Don't you want to try to develop a rsb-set for
> exactly this combination of RTEMS4.10 and EPICS7?
> >>>
> >>>
> >>> Sure, I am ready to do this and then do it with RTEMS5 in the same
> way. Please tell how to begin or some existing similar
> >>> work that can guide me how to proceed further in relation to rsb-set
> for  RTEMS4.10 and EPICS7.
> >>>
> >>
> >> I don't know if this is best. RSB didn't exist in 4.10. I haven't
> >> looked to see how well the rtems-source-builder/4.10 would support a
> >> package build. It should be discussed with Chris probably. A couple of
> >> packages were added in the 4.11 branch.
>
> I would leave 4.10 and move on. It may work but these things can expose
> issues
> that turn into distractions.
>
> Would making a script that does the build so we can document the steps be
> worth
> while


Yes. Emphatically yes. We need to make sure we know how it is best built by
hand to automate it.

I firmly believe you should not attempt to automate something until doing
it manually is well understood and documented.

After you have this down for one BSP, we need to ask questions like:

+ Is there any per BSP tailoring beyond the obviod architecture and
compilation settings?

+ Any tweaks to settings users may want?

The manual process should include testing. The RSB is a great way to
automate and ease building but it doesn't address testing the packages yet.

--joel


> Chris
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