Re: error: A dwo section may not contain relocations

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On Mon, Aug 14, 2023 at 03:13:25PM -0700, Nick Desaulniers wrote:
> On Thu, Aug 10, 2023 at 1:04 AM Yujie Liu <yujie.liu@xxxxxxxxx> wrote:
> >
> > Hi Nick,
> >
> > On Tue, Aug 08, 2023 at 12:46:00PM -0700, Nick Desaulniers wrote:
> > > On Tue, Aug 8, 2023 at 12:02 PM kernel test robot <lkp@xxxxxxxxx> wrote:
> > > >
> > > > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > > > head:   02aee814d37c563e24b73bcd0f9cb608fbd403d4
> > > > commit: f9b3cd24578401e7a392974b3353277286e49cee Kconfig.debug: make DEBUG_INFO selectable from a choice
> > > > date:   1 year, 5 months ago
> > > > config: riscv-randconfig-r001-20230808 (https://download.01.org/0day-ci/archive/20230809/202308090204.9yZffBWo-lkp@xxxxxxxxx/config)
> > > > compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1)
> > >
> > > FWIW, I wasn't able to reproduce with the provided config and
> > > clang-17.  Perhaps this is a bug for older clang releases (the bot
> > > tested with clang-14).
> >
> > Thanks for this info. We re-tested with various versions of clang.
> > clang-14 throws this error, while clang-15/16/17 have no problem in this
> 
> Oh, interesting data point.
> 
> Ok, I've filed https://github.com/ClangBuiltLinux/linux/issues/1914 to
> track this.
> 
> Will bisect llvm to find when this was fixed.
> 
> Then we will fix kconfig for the split debug info.
> 
> > case. We will consider adjusting our compiler coverage and remove the old
> > clang-14.
> 
> Documentation/process/changes.rst lists our minimal support for
> clang-11+.  It's still useful to have clang-14 builds.

Got it, we will keep clang-14 running, and ignore this specific
error.

> 
> >
> > Best Regards,
> > Yujie
> >
> > > > reproduce: (https://download.01.org/0day-ci/archive/20230809/202308090204.9yZffBWo-lkp@xxxxxxxxx/reproduce)
> > > >
> > > > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > > > the same patch/commit), kindly add following tags
> > > > | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > > > | Closes: https://lore.kernel.org/oe-kbuild-all/202308090204.9yZffBWo-lkp@xxxxxxxxx/
> > > >
> > > > All errors (new ones prefixed by >>):
> > > >
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > > >> error: A dwo section may not contain relocations
> > > >    fatal error: too many errors emitted, stopping now [-ferror-limit=]
> > > >    20 errors generated.
> > > >    make[2]: *** [scripts/Makefile.build:288: arch/riscv/kernel/vdso/vgettimeofday.o] Error 1 shuffle=3686795728
> > > >    make[2]: Target 'include/generated/vdso-offsets.h' not remade because of errors.
> > > >    make[1]: *** [arch/riscv/Makefile:120: vdso_prepare] Error 2 shuffle=3686795728
> > > >    make[1]: Target 'prepare' not remade because of errors.
> > > >    make: *** [Makefile:219: __sub-make] Error 2 shuffle=3686795728
> > > >    make: Target 'prepare' not remade because of errors.
> > > >
> > > > --
> > > > 0-DAY CI Kernel Test Service
> > > > https://github.com/intel/lkp-tests/wiki
> > >
> > >
> > >
> > > --
> > > Thanks,
> > > ~Nick Desaulniers
> > >
> 
> 
> 
> -- 
> Thanks,
> ~Nick Desaulniers
> 




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