Adding GDB BSPs to rtems-tester

[Niteesh G. S.]

On Thu, Mar 19, 2020 at 11:43 PM Gedare Bloom <gedare at rtems.org> wrote:

> On Thu, Mar 19, 2020 at 11:56 AM Niteesh G. S. <niteesh.gs at gmail.com>
> wrote:
> >
> > Hello,
> >
> > While looking for small tasks to take up, Gedare mentioned about adding
> GDB BSPs
> > to rtems-tester. Can some please explain a bit more of what has to be
> done? I guess
> > we have to write configuration files for BSPs that support simulation in
> GDB. If so, how
> > could I find those BSPs, do I have to individually look at all the BSPs?
> >
> As I said off-list, I don't know if there's a list of GDB BSPs, but I
> know of at least:
> powerpc/psim
> mips/jmr3904
> moxie/moxiesim
> arm/gdbarmsim
> sh/shsim
>
> I have no idea what any of their statuses are or if they are expected
> to work. The first step would be building them and see if they run
> anything. After that, you should look at the existing tester scripts for
> some targets:
>   rtems-tools.git/tester/rtems/testing/bsps
> I see scripts for most of what I listed above, so the next step would
> be trying to run them via tester and see if it works.
>

I built the simsh1 BSP but couldn't get it running. Before trying it with
rtems-run
and rtems-test I tried manually loading it in the simulator. But gdb
doesn't respond
as soon as I execute the run command. The only way to exit it was using
ctrl-c and GDB
responds with
sim_events_schedule_after_signal - buffer overflow
Quit
Aborted (core dumped)
I tried setting breakpoints within GDB but it never seems to hit them. I
tried running the
examples through rtems-test results in ta imeout.

Due to the slow internet connection and slow development machine, I could
only build
and test a few BSPs. In case if anyone has an already built tool suite and
BSP for the
mentioned arch please try them out.

BTW: Did I mention adding these to tester, or did I mention creating
> build sets for them? Anyway, I think the GDB simulator builds by
> default with the toolchain, so there is no difference between a BSP
> buildset (such as for jmr3904) and one that supports running on GDB.
> At least, I think so. It is worth verifying.
>
> Gedare
>
> > Thank you,
> > Niteesh.
> > _______________________________________________
> > devel mailing list
> > devel at rtems.org
> > http://lists.rtems.org/mailman/listinfo/devel
>
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