Compiling sparc/leon3 with clang

[Joel Sherrill]

On Wed, Jul 31, 2019 at 10:52 AM Gedare Bloom <gedare at rtems.org> wrote:

> On Tue, Jul 30, 2019 at 11:09 PM Sebastian Huber
> <sebastian.huber at embedded-brains.de> wrote:
> >
> > On 31/07/2019 01:23, Gedare Bloom wrote:
> > > Hello folks,
> > >
> > > I'm trying to compile leon3 with clang, because I'm under the
> > > impression it should be possible. I got as far as
> > > mv -f base_sp/.deps/base_sp-apptask.Tpo
> base_sp/.deps/base_sp-apptask.Po
> > > clang -target sparc-rtems5 -ccc-gcc-name sparc-rtems5-gcc
> > > -mcpu=leon3 -O2 -g -ffunction-sections -fdata-sections -Wall
> > > -Wmissing-prototypes -Wimplicit-function-declaration
> > > -Wstrict-prototypes -Wnested-externs -B./../../lib/libbsp/sparc/leon3
> > > -B/mnt/devel/rtems/rtems/bsps/sparc/leon3/start -qrtems
> > > -L./../../cpukit -L/mnt/devel/rtems/rtems/bsps/sparc/shared/start
> > > -Wl,--wrap=printf -Wl,--wrap=puts -Wl,--wrap=putchar -Wl,--gc-sections
> > > -o base_sp.exe base_sp/base_sp-init.o base_sp/base_sp-apptask.o
> > > ./../../lib/libbsp/sparc/leon3/librtemsbsp.a
> > > ./../../cpukit/librtemscpu.a ./../../cpukit/librtemstest.a
> > > clang-10: error: unknown argument: '-qrtems'
> > > Makefile:665: recipe for target 'base_sp.exe' failed
> > > make[5]: *** [base_sp.exe] Error 1
> > > make[5]: Leaving directory
> > >
> '/mnt/devel/rtems/builds/b-erc32-clang/sparc-rtems5/c/leon3/testsuites/samples'
> > >
> > > Any advice how to get past this qrtems error?
> >
> > The -qrtems is an RTEMS-specific GCC option.  See also:
> >
> > https://lists.rtems.org/pipermail/devel/2018-September/023095.html
> > https://lists.rtems.org/pipermail/devel/2019-June/026396.html
> >
> I don't see any resolution from this matter. Is there a path forward,
> or what is the hard part?
>

The Gaisler folks did the work and had the sparc BSPs building. Not sure
what
the missing bits are but they should know.

--joel

>
> -Gedare
>
> > --
> > Sebastian Huber, embedded brains GmbH
> >
> > Address : Dornierstr. 4, D-82178 Puchheim, Germany
> > Phone   : +49 89 189 47 41-16
> > Fax     : +49 89 189 47 41-09
> > E-Mail  : sebastian.huber at embedded-brains.de
> > PGP     : Public key available on request.
> >
> > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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