linux-hardening - Re: Compilation issue with Linaro ARM toolchain

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Date:   Mon, 18 Jan 2021 21:21:20 +0300
From:   Sergey Suloev <ssuloev@...altech.com>
To:     Maxim Kuvyrkov <maxim.kuvyrkov@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linaro Toolchain Working Group 
        <linaro-toolchain@...ts.linaro.org>, keescook@...omium.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-hardening@...r.kernel.org
Subject: Re: Compilation issue with Linaro ARM toolchain

Hi, Maxim,

thank you for the reply.
Installing libmpc-dev helped.

On 18.01.2021 19:04, Maxim Kuvyrkov wrote:
>> On 18 Jan 2021, at 18:59, Mathieu Poirier <mathieu.poirier@...aro.org> wrote:
>>
>> Adding the Linaro toolchain group mailing list.
>>
>> On Mon, Jan 18, 2021 at 05:49:39PM +0300, Sergey Suloev wrote:
>>> Hi, guys,
>>>
>>> I am having an issue builduing kernel 5.11 (rc4) with Linaro ARM toolchain.
>>> The issue seems to be related to CC plugins sources.
>>> Here is my build log: https://pastebin.com/DTn7Szax. I have never seen this
>>> before with versions 5.10 and below.
> Thanks, Mathieu.
>
> Hi Sergey,
>
> MPC (along with GMP and MPFR) are libraries that GCC and its plugins depend on.  I think, installing libmpc-dev or equivalent should fix the problem; installing an equivalent of “apt build-dep gcc” might be more robust.
>
> Linux kernel has recently relaxed the way it detects support for compiler plugins, so it’s now enabling them more often than before.
>
> Hope this helps,
>
> --
> Maxim Kuvyrkov
> https://www.linaro.org
>
Thanks,
Sergey