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Subject: Re: Compilation issue with Linaro ARM toolchain
From:   Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
In-Reply-To: <20210118155921.GA462671@xps15>
Date:   Mon, 18 Jan 2021 19:04:02 +0300
Cc:     LKML <linux-kernel@vger.kernel.org>,
        Linaro Toolchain Working Group 
        <linaro-toolchain@lists.linaro.org>, keescook@chromium.org,
        linux-arm-kernel@lists.infradead.org,
        linux-hardening@vger.kernel.org
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Message-Id: <061303A4-51F3-42E0-BCE3-BFAF416D7609@linaro.org>
References: <70249918-0081-aef4-0605-85db700aadc5@orpaltech.com>
 <20210118155921.GA462671@xps15>
To:     Mathieu Poirier <mathieu.poirier@linaro.org>,
        Sergey Suloev <ssuloev@orpaltech.com>
Precedence: bulk

> On 18 Jan 2021, at 18:59, Mathieu Poirier <mathieu.poirier@linaro.org> =
wrote:
>=20
> Adding the Linaro toolchain group mailing list.
>=20
> On Mon, Jan 18, 2021 at 05:49:39PM +0300, Sergey Suloev wrote:
>> Hi, guys,
>>=20
>> 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 =E2=80=9Capt build-dep gcc=E2=80=9D =
might be more robust.

Linux kernel has recently relaxed the way it detects support for =
compiler plugins, so it=E2=80=99s now enabling them more often than =
before.

Hope this helps,

--
Maxim Kuvyrkov
https://www.linaro.org