Re: Error in dtc around -fno-common

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Bumping this thread.  It would be good to send this as a fixup for the
next -rc if possible, that way we can start backporting it to -stable.

On Tue, Mar 10, 2020 at 12:53 AM Nathan Chancellor
<natechancellor@xxxxxxxxx> wrote:
>
> Hi all,
>
> GCC 10 is defaulting to -fno-common and Clang has decided to join it [1],
> which will completely turn our CI [2] red across the board when our
> compiler uprevs in the current tree's state:
>
> ld.lld: error: duplicate symbol: yylloc
> >>> defined at dtc-lexer.lex.c
> >>>            scripts/dtc/dtc-lexer.lex.o:(yylloc)
> >>> defined at dtc-parser.tab.c
> >>>            scripts/dtc/dtc-parser.tab.o:(.bss+0x10)
> clang-11: error: linker command failed with exit code 1 (use -v to see
> invocation)
>
> Is it possible to pick a single patch from dtc and get it fast tracked
> to mainline/stable so that this does not happen? It would be this one:
>
> https://git.kernel.org/pub/scm/utils/dtc/dtc.git/commit/?id=0e9225eb0dfec51def612b928d2f1836b092bc7e
>
> I have tested it and it works fine. If that is not possible, how would
> you recommend solving this issue?
>
> [1]: https://github.com/llvm/llvm-project/commit/3d9a0445cce368b55dc3a573bc91fe902bbb977f
> [2]: https://travis-ci.com/ClangBuiltLinux/continuous-integration/builds/152428887
>
> Cheers,
> Nathan
>
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-- 
Thanks,
~Nick Desaulniers



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