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Message-ID: <ZNSWMgFF529bGy14@yujie-X299>
Date: Thu, 10 Aug 2023 15:48:02 +0800
From: Yujie Liu <yujie.liu@...el.com>
To: Nick Desaulniers <ndesaulniers@...gle.com>
CC: kernel test robot <lkp@...el.com>,
Kees Cook <keescook@...omium.org>, <llvm@...ts.linux.dev>,
<oe-kbuild-all@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
Arnd Bergmann <arnd@...db.de>,
"Nathan Chancellor" <nathan@...nel.org>,
Masahiro Yamada <masahiroy@...nel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>,
Conor Dooley <conor@...nel.org>
Subject: Re: error: A dwo section may not contain relocations
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@...el.com> 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@intel.com/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
case. We will consider adjusting our compiler coverage and remove the old
clang-14.
Best Regards,
Yujie
> > reproduce: (https://download.01.org/0day-ci/archive/20230809/202308090204.9yZffBWo-lkp@intel.com/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@...el.com>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202308090204.9yZffBWo-lkp@intel.com/
> >
> > 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
>
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