linux-kernel - Re: error: A dwo section may not contain relocations

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Date:   Tue, 8 Aug 2023 12:46:00 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     kernel test robot <lkp@...el.com>,
        Kees Cook <keescook@...omium.org>
Cc:     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

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).

> 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