On Wed, Jul 31, 2019 at 11:20 AM Gedare Bloom <ged...@rtems.org> wrote: > > On Wed, Jul 31, 2019 at 10:03 AM Joel Sherrill <j...@rtems.org> wrote: > > > > > > > > On Wed, Jul 31, 2019 at 10:52 AM Gedare Bloom <ged...@rtems.org> wrote: > >> > >> On Tue, Jul 30, 2019 at 11:09 PM Sebastian Huber > >> <sebastian.hu...@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. > > > I suspect they have modified llvm/clang frontend slightly, to deal > with this qrtems... I downloaded the RCC-1.3 and will try that > out-of-box to see if it succeeds or not. I couldn't see any > source/patches for llvm/clang so not really sure. Hopefully they can > comment whether there are changes that have to be made. > They built a 32-bit toolchain (sparc-gaisler-rtems-clang), so I had to install some 32-bit libraries (lib32tinfo-dev lib32ncurses5-dev) on my Ubuntu machine to get newlib/rtems to compile.
After that I was able to build newlib and rtems, and I built/linked the in-tree RTEMS samples and ran hello. (dl06 failed though with error: getting standard libs: Library not found: libssp.a) So it definitely seems like the RCC's version of clang understands to some extent the -qrtems. Gedare > > --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.hu...@embedded-brains.de > >> > PGP : Public key available on request. > >> > > >> > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. > >> _______________________________________________ > >> devel mailing list > >> devel@rtems.org > >> http://lists.rtems.org/mailman/listinfo/devel _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
