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

[Mritunjay Sharma]

On Fri, Jul 3, 2020 at 10:53 PM Mritunjay Sharma <
mritunjaysharma394 at gmail.com> wrote:

>
>
> ------------------------------
> *From:* Gedare Bloom <gedare at rtems.org>
> *Sent:* Friday, July 3, 2020 9:42 PM
> *To:* Mritunjay Sharma
> *Cc:* Heinz Junkes; Chris Johns; RTEMS Devel
> *Subject:* Re: [GSoC 2020: Daily Update]: Building EPICS with RTEMS5
>
> On Fri, Jul 3, 2020 at 9:17 AM Mritunjay Sharma
> <mritunjaysharma394 at gmail.com> wrote:
> >
> > Hello Heinz and everyone,
> >
> > Thank you so much, with this email, I will try to clear all the things,
> and what is the status for now.
> >
> > First. let me tell you the current status: Vijay helped me last night in
> an offlist discussion to clear the confusions which
> > I was having (I will mention them below) due to which I was able to
> build and install RTEMS 4.10 for pc386 successfully.
> > With that, all my previous errors were resolved. Below is the detail of
> all the steps, I followed.
> >
> > Let me tell that my development environment was earlier set up for
> RTEMS5. For building EPICS with RTEMS,
> > I thought it will be right to first build RTEMS 4.10 for pc386.
> >
> > In order to do that, I made the directory
> >
> > i) $HOME/development/rtems_dev
> > ii) I extracted rtems-4.10.2 from here
> https://ftp.rtems.org/pub/rtems/releases/4.10/4.10.2/
> > iii)I created another directory rtems_dev/src
> > iv)Inside src, I cloned rsb and moved to 4.10 branch.
> > v) After performing checks, I entered to rsb/rtems and used this command:
> > '../source-builder/sb-set-builder
> --prefix=/home/mritunjay/development/rtems_dev/rtems-4.10.2 4.10/rtems-i386'
> > Even though the build completed successfully, this was the point where I
> made the error. I used the RTEMS source as the prefix which
> > was causing all the problems.
> > vi) After the discussion with Vijay and getting cleared, I deleted
> everything except the RTEMS RSB and restarted the process with prefix and
> source
> > different this time and rebuilt the compiler tools using RSB.
> > vii) Now the directory structure under $HOME/development/rtems_dev/
> looked like:
> >       | rtems-4.10.2
> >       | 4.10
> >       | src/rsb
> >       | kernel/pc386
> > I also used this command: "export
> PATH=$HOME/development/rtems_dev/4.10/bin:$PATH"
> > vi) Then I went to rtems_dev/rtems-4.10.2 and used this command:
> > "./bootstrap -c &&
> $HOME/development/rtems_dev/src/rsb/source-builder/sb-bootstrap"
> > vi) After this I went insid directory
> $HOME/development/rtems_dev/kernel/pc-386
> > vii) Inside pc-386, I used the following command:
> > ''$HOME/development/rtems_dev/rtems-4.10.2/configure
> --target=i386-rtems4.10 --disable-posix  --enable-rtemsbsp=pc386
> --enable-tests=samples --prefix=/home/development/rtems_dev/rtems-4.10.2
> --enable-cxx"
> > viii) Then I entered the make command which ran successfully and the
> make install was also successful.
> >
> > So all the errors were resolved and I moved on to build EPICS now for
> RTEMS 4.10.
> > I also used this command:
> > '''export
> RTEMS_MAKEFILE_PATH=$HOME/development/rtems_dev/4.10/i386-rtems4.10/pc386''
> > Location of epics-base in my system is as follows:
> > "$HOME/development/EPICS/epics-base"
> >
> > After this, I followed the tutorial you sent to build EPICS for
> rterms-4.10 for pc-386 which is:
> >>
> >> Very roughly:
> >> git clone —recursive epics-base
> >>
> >> in epics-base/configure/CONFIG_SITE
> >> set
> >> CROSS_COMPILER_TARGET_ARCHS=
> >
> >    What I entered:
> >    CROSS_COMPILER_TARGET_ARCHS=  RTEMS-pc386
> >>
> >> e.g. RTEMS-pc386
> >> or RTEMS-xilinx_zynq_a9_qemu
> >>
> >> in epics-base/configure/os there must be a file for the target used,
> >> e.g.
> >> CONFIG.Common.RTEMS-xilinx_zynq_a9_qemu
> >> or
> >> CONFIG.Common.RTEMS-pc386
> >
> > Checked.  CONFIG.Common.RTEMS-pc386 was there
> >>
> >>
> >> Then you have to set in configure/os/CONFIG_SITE.Common.RTEMS
> >> where to find RTEMS:
> >>
> >> # Where to find RTEMS
> >> #
> >> # APS:
> >> #RTEMS_VERSION = 4.10.2
> >> #RTEMS_BASE = /usr/local/vw/rtems/rtems-$(RTEMS_VERSION)
> >
> >
> > In my system, I entered this:
> > #APS
> > RTEMS_VERSION = 4.10
> > RTEMS_BASE = /home/mritunjay/development/rtems_dev/$(RTEMS_VERSION)
> >
> > I followed the above instructions and used the 'make' command.
> >
> >
> > While the earlier errors are resolved, The latest error that I have
> encountered is this after using make command.:
> >
> > ".......Info':
> >
> /home/mritunjay/development/EPICS/epics-base/modules/libcom/src/O.RTEMS-pc386/../osi/os/RTEMS/osdThread.c:747:
> undefined reference to `pthread_getschedparam'
> > collect2: ld returned 1 exit status
> > ../../../../configure/RULES_BUILD:212: recipe for target
> 'libComTestHarness' failed
> > make[4]: *** [libComTestHarness] Error 1
> > make[4]: Leaving directory
> '/home/mritunjay/development/EPICS/epics-base/modules/libcom/test/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/test'
> > ../../configure/RULES_DIRS:85: recipe for target 'test.install' failed
> > make[2]: *** [test.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 hope this time I was explicit in writing what I did and what error I
> am facing as of now. It would be kind
> > of you to guide where I am going wrong.
> >
>
> Probably the current epics-base is not working with 4.10.2 any longer?
>
> The pthread_getschedparam() was introduced to allow epics-base to
> compile properly with the 4.10 HEAD (pending 4.10.3 release). Use the
> 4.10 HEAD instead of 4.10.2 release/tag and see how the process goes
> instead.
>
> Thank you so much Gedare, I will check and revert as soon as possible.
>
I used the 4.10 HEAD as suggested by you and I cross-checked it using
` cat .git/HEAD`
which showed the following result: `ref: refs/heads/4.10`. I did the entire
process again with 4.10 ahead but I got the
same error again after using 'make' in epics-base.

Thanks,
Mritunjay

>
> Mritunjay.
>
> > Thanks,
> > Mritunjay
> >
> >
> >
> >
> >
> > On Fri, Jul 3, 2020 at 9:03 AM Heinz Junkes <junkes at fhi-berlin.mpg.de>
> wrote:
> >>
> >> Hello, Mritunjay,
> >>
> >> unfortunately i still miss a transcript in which the things you do are
> listed in detail.
> >> Then we could really help you better.
> >>
> >> Heinz
> >>
> >> > On 3. Jul 2020, at 04:14, Chris Johns <chrisj at rtems.org> wrote:
> >> >
> >> > On 3/7/20 9:01 am, Mritunjay Sharma wrote:
> >> >> Thank you so much Gedare, I think the problem was with confusion
> related to
> >> >> prefix and source being the same which created a lot of problems.
> >> >>
> >> >> I just had an offlist discussion with Vijay and he has cleared all
> my doubts and
> >> >> the mistakes I was making. The problem as of now seems to be
> resolved.
> >> >
> >> > Vijay, thanks for helping and Mritunjay thank you for letting us know.
> >> >
> >> > Chris
> >> > _______________________________________________
> >> > devel mailing list
> >> > devel at rtems.org
> >> > http://lists.rtems.org/mailman/listinfo/devel
> >>
>
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