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

Joel Sherrill joel at rtems.org
Fri Jul 10 22:17:12 UTC 2020 

On Fri, Jul 10, 2020 at 5:14 PM Joel Sherrill <joel at rtems.org> wrote:

> Wading in late but I thought I saw something that was contradictory:
>
> Build BSP with --enable-networking
> Code needs rtems-libbsd
>
> If the code needs rtems-libbsd, then you MUST build fill with
> --disable-networking.
>
> If EPICS code needs rtems-libbsd, that limits the number of BSPs that can
> be used but you need to always use libbsd.
>

Including <sys/termios.h> means it can't be built with the old network
stack as best I can tell:

 find rtems rtems-libbsd/ tools/5/sparc-rtems5/include/ -name termios.h
rtems-libbsd/freebsd-org/include/termios.h
rtems-libbsd/freebsd-org/sys/sys/termios.h
tools/5/sparc-rtems5/include/machine/termios.h
tools/5/sparc-rtems5/include/termios.h

Can sys/termios.h be changed to <termios.h>? That would allow EPICS to
compile with both TCPIP stacks.

>
> --joel
>
> On Fri, Jul 10, 2020 at 3:37 PM Gedare Bloom <gedare at rtems.org> wrote:
>
>> On Fri, Jul 10, 2020 at 12:14 PM Mritunjay Sharma
>> <mritunjaysharma394 at gmail.com> wrote:
>> >
>> > Apologies for the delay in response,
>> > It’s an important update that I want to give to my mentors that my
>> current development laptop showed some problems yesterday and which
>> worsened today.
>> >
>> > I have submitted my laptop for repair. The good thing is that I have
>> the backup of the work done till day and I have arranged a spare laptop as
>> well which will be available tomorrow.
>> >
>> > Configuring and setting up my laptop for the development may take a
>> couple of days and so I will like to request you all to kindly pardon my
>> inactivity for the next 2 days.
>> >
>>
>> Meanwhile, you may also think about reading/writing some more
>> documentation, or planning out your next steps.
>>
>> > I hope to be back active on Monday with everything set up on the new
>> laptop.
>> >
>> > Thanks
>> > Mritunjay
>> >
>> > Get Outlook for iOS
>> > ________________________________
>> > From: Jan.Sommer at dlr.de <Jan.Sommer at dlr.de>
>> > Sent: Thursday, July 9, 2020 12:43:30 PM
>> > To: gedare at rtems.org <gedare at rtems.org>; mritunjaysharma394 at gmail.com <
>> mritunjaysharma394 at gmail.com>
>> > Cc: rtems-devel at rtems.org <rtems-devel at rtems.org>
>> > Subject: RE: [GSoC 2020: Daily Update]: Building EPICS with RTEMS5
>> >
>> >
>> >
>> > > -----Original Message-----
>> > > From: devel [mailto:devel-bounces at rtems.org] On Behalf Of Gedare
>> Bloom
>> > > Sent: Wednesday, July 8, 2020 9:45 PM
>> > > To: Mritunjay Sharma
>> > > Cc: RTEMS Devel
>> > > Subject: Re: [GSoC 2020: Daily Update]: Building EPICS with RTEMS5
>> > >
>> > > On Wed, Jul 8, 2020 at 12:33 PM Mritunjay Sharma
>> > > <mritunjaysharma394 at gmail.com> wrote:
>> > > >
>> > > > [UPDATE]: I tried to build the EPICS 7 with RTEMS 5 for pc386 with
>> Heinz's
>> > > https://github.com/hjunkes/epicsBaseOwnPlayground
>> > > > while switching to Branch "7". The previous errors are gone but I
>> am facing
>> > > the following error:
>> > > >
>> > > > "../posix/rtems_init.c:38:10: fatal error: rtems/bsd/bsd.h: No such
>> file or
>> > > directory
>> > > >  #include <rtems/bsd/bsd.h>
>> > > >           ^~~~~~~~~~~~~~~~~
>> > >
>> > > This error indicates it is looking for an installed rtems-libbsd. My
>> > > guess is you need to build/install the rtems-libbsd to get this
>> > > playground to work.
>> > >
>> >
>> > I did not read everything in this thread, so maybe I misunderstand
>> something.
>> > If you want to build rtems-libbsd for a pc-based BSP, please be aware
>> of the following:
>> > - It should build fine if you use the 5-freebsd-12 branch.
>> > - With master branch is should build if you set the option
>> "dev_nic_e1000" to off in your buildset.ini. It should compile, but
>> depending on your network adapter there might be problems to actually use
>> the network devices.
>> >
>> > Finishing a patchset for the master branch to fix that is on my todo
>> list, but I haven't come around to do it yet.
>> >
>> > > > compilation terminated.
>> > > >
>> > > /home/mritunjay/development/EPICS/epicsBaseOwnPlayground/configure/
>> > > RULES_BUILD:234: recipe for target 'rtems_init.o' failed
>> > > > make[4]: *** [rtems_init.o] Error 1
>> > > > make[4]: Leaving directory
>> > > '/home/mritunjay/development/EPICS/epicsBaseOwnPlayground/modules/
>> > > libcom/RTEMS/O.RTEMS-pc386'
>> > > >
>> > > /home/mritunjay/development/EPICS/epicsBaseOwnPlayground/configure/
>> > > RULES_ARCHS:58: recipe for target 'install.RTEMS-pc386' failed
>> > > > make[3]: *** [install.RTEMS-pc386] Error 2
>> > > > make[3]: Leaving directory
>> > > '/home/mritunjay/development/EPICS/epicsBaseOwnPlayground/modules/
>> > > libcom/RTEMS'
>> > > >
>> > > /home/mritunjay/development/EPICS/epicsBaseOwnPlayground/configure/
>> > > RULES_DIRS:84: recipe for target 'RTEMS.install' failed
>> > > > make[2]: *** [RTEMS.install] Error 2
>> > > > make[2]: Leaving directory
>> > > '/home/mritunjay/development/EPICS/epicsBaseOwnPlayground/modules/
>> > > libcom'
>> > > > ../configure/RULES_DIRS:84: recipe for target 'libcom.install'
>> failed
>> > > > make[1]: *** [libcom.install] Error 2
>> > > > make[1]: Leaving directory
>> > > '/home/mritunjay/development/EPICS/epicsBaseOwnPlayground/modules'
>> > > > configure/RULES_DIRS:84: recipe for target 'modules.install' failed
>> > > > make: *** [modules.install] Error 2"
>> > > >
>> > > > Today's update is that I tried to fix the above error however I
>> still have not
>> > > been able to clear it.
>> > > > If anyone has idea, please do tell what can be done.
>> > > >
>> > > > Thanks
>> > > > Mritunjay
>> > > >
>> > > > On Wed, Jul 8, 2020 at 1:12 AM Mritunjay Sharma
>> > > <mritunjaysharma394 at gmail.com> wrote:
>> > > >>
>> > > >>
>> > > >>
>> > > >> ________________________________
>> > > >> From: Heinz Junkes <junkes at fhi-berlin.mpg.de>
>> > > >> Sent: Wednesday, July 8, 2020 1:05 AM
>> > > >> To: Mritunjay Sharma
>> > > >> Cc: Gedare Bloom; Joel Sherrill; Chris Johns; RTEMS Devel
>> > > >> Subject: Re: [GSoC 2020: Daily Update]: Building EPICS with RTEMS5
>> > > >>
>> > > >> I’m away from my keyboard. If you use the epics Adaption to rtems
>> from
>> > > my github “playground?” and bsp’s with —enable-networks should
>> compile.
>> > > >> Heinz
>> > > >>
>> > > >> FHI, Heinz Junkes
>> > > >>
>> > > >> Thank you Heinz, I was doing the same. I went to your GitHub and am
>> > > experimenting with "playground" right now.
>> > > >>
>> > > >> Thanks,
>> > > >> Mritunjay
>> > > >>
>> > > >> On 7. Jul 2020, at 18:14, Mritunjay Sharma
>> > > <mritunjaysharma394 at gmail.com> wrote:
>> > > >>
>> > > >>
>> > > >> [UPDATE]: I tried building EPICS with RTEMS5 for pc-386 and
>> pc-386-qemu.
>> > > >> Everything worked fine while building the pc-386 with  RTEMS5.
>> > > >>
>> > > >> After this when I entered epics-base and made the following change:
>> > > >>
>> > > >> epics-base/os/CONFIG_SITE.Common.RTEMS
>> > > >> RTEMS_VERSION = 5
>> > > >> RTEMS_BASE =
>> > > /home/mritunjay/development/rtems_dev/$(RTEMS_VERSION)
>> > > >>
>> > > >> As an experiment, I ran the make and as expected got the following
>> error
>> > > >>
>> > > >> Error:
>> > > >>
>> > > >> ```...de/compiler/gcc -I../../../../include/os/RTEMS
>> -I../../../../include         -
>> > > c ../rtems_init.c
>> > > >> ../rtems_init.c:21:10: fatal error: sys/termios.h: No such file or
>> directory
>> > > >>  #include <sys/termios.h>
>> > > >>           ^~~~~~~~~~~~~~~
>> > > >> compilation terminated.
>> > > >> ../../../../configure/RULES_BUILD:240: recipe for target
>> 'rtems_init.o'
>> > > failed
>> > > >> make[4]: *** [rtems_init.o] Error 1
>> > > >> make[4]: Leaving directory
>> '/home/mritunjay/development/EPICS/epics-
>> > > base/modules/libcom/RTEMS/O.RTEMS-pc386'
>> > > >> ../../../configure/RULES_ARCHS:58: recipe for target
>> 'install.RTEMS-pc386'
>> > > failed
>> > > >> make[3]: *** [install.RTEMS-pc386] Error 2
>> > > >> make[3]: Leaving directory
>> '/home/mritunjay/development/EPICS/epics-
>> > > base/modules/libcom/RTEMS'
>> > > >> ../../configure/RULES_DIRS:85: recipe for target 'RTEMS.install'
>> failed
>> > > >> make[2]: *** [RTEMS.install] Error 2
>> > > >> make[2]: Leaving directory
>> '/home/mritunjay/development/EPICS/epics-
>> > > base/modules/libcom'
>> > > >> ../configure/RULES_DIRS:85: recipe for target 'libcom.install'
>> failed
>> > > >> make[1]: *** [libcom.install] Error 2
>> > > >> make[1]: Leaving directory
>> '/home/mritunjay/development/EPICS/epics-
>> > > base/modules'
>> > > >> configure/RULES_DIRS:85: recipe for target 'modules.install' failed
>> > > >> make: *** [modules.install] Error 2
>> > > >> ```
>> > > >>
>> > > >> I am trying to figure out the error and making the changes in code
>> to
>> > > debug it.
>> > > >> However, I will appreciate if Heinz and everyone else can help me
>> a little,
>> > > if they have an
>> > > >> idea of this error.
>> > > >>
>> > > >> Thanks
>> > > >> Mritunjay
>> > > >>
>> > > >> On Tue, Jul 7, 2020 at 7:30 PM Mritunjay Sharma
>> > > <mritunjaysharma394 at gmail.com> wrote:
>> > > >>>
>> > > >>>
>> > > >>>
>> > > >>> On Tue, Jul 7, 2020 at 5:33 AM Gedare Bloom <gedare at rtems.org>
>> > > wrote:
>> > > >>>>
>> > > >>>> On Mon, Jul 6, 2020 at 5:49 PM Joel Sherrill <joel at rtems.org>
>> wrote:
>> > > >>>> >
>> > > >>>> >
>> > > >>>> >
>> > > >>>> > On Mon, Jul 6, 2020, 6:14 PM Gedare Bloom <gedare at rtems.org>
>> > > wrote:
>> > > >>>> >>
>> > > >>>> >> On Mon, Jul 6, 2020 at 10:12 AM Mritunjay Sharma
>> > > >>>> >> <mritunjaysharma394 at gmail.com> wrote:
>> > > >>>> >> >
>> > > >>>> >> > Hello everyone,
>> > > >>>> >> >
>> > > >>>> >> > Thank you, Heinz, Gedare, Chris and Joel for your advice.
>> > > >>>> >> > If there are issues in making a buildset for 4.10
>> > > >>>> >> > then should I build EPICS with RTEMS 5 by hand first and
>> note
>> > > >>>> >> > down the process and then proceed to make the buildset for
>> it?
>> > > >>>> >> >
>> > > >>>> >>
>> > > >>>> >> Yes.
>> > > >>>> >
>> > > >>>> >
>> > > >>>> > +1
>> > > >>>> >
>> > > >>>> > And by 5, we definitely mean the 5 branch for all rtems repo
>> and the
>> > > similarly named one for libbsd.
>> > > >>>>
>> > > >>>> Excellent point. We want to add support for easy build (and
>> eventually
>> > > >>>> test) of EPICS+RTEMS starting with 5.1 and moving forward, which
>> > > means
>> > > >>>> also doing it for RTEMS 6, Mritunjay.
>> > > >>>>
>> > > >>> Sounds good, I have begun building it hand by today for RTEMS 5
>> branch
>> > > and later on continue the
>> > > >>> same for RTEMS6
>> > > >>>
>> > > >>> Thank you so much Gedare and Joel.
>> > > >>> Mritunjay
>> > > >>>>
>> > > >>>> >>
>> > > >>>> >>
>> > > >>>> >> > Please suggest for the future steps.
>> > > >>>> >> >
>> > > >>>> >> > Thanks
>> > > >>>> >> > Mritunjay
>> > > >>>> >> >
>> > > >>>> >> > On Mon, Jul 6, 2020 at 5:38 AM Joel Sherrill <
>> joel at rtems.org>
>> > > wrote:
>> > > >>>> >> >>
>> > > >>>> >> >>
>> > > >>>> >> >>
>> > > >>>> >> >> 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
>> > > >>>> >> >>> _______________________________________________
>> > > >>>> >> >>> devel mailing list
>> > > >>>> >> >>> devel at rtems.org
>> > > >>>> >> >>> http://lists.rtems.org/mailman/listinfo/devel
>> > > >>>> >> >>
>> > > >>>> >> >> _______________________________________________
>> > > >>>> >> >> devel mailing list
>> > > >>>> >> >> devel at rtems.org
>> > > >>>> >> >> http://lists.rtems.org/mailman/listinfo/devel
>> > > _______________________________________________
>> > > devel mailing list
>> > > devel at rtems.org
>> > > http://lists.rtems.org/mailman/listinfo/devel
>> _______________________________________________
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