From: Denis Kirjanov <kirjanov@gmail.com>
To: Muni Sekhar <munisekharrms@gmail.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
kernelnewbies <kernelnewbies@kernelnewbies.org>
Subject: Re: CONFIG_CC_STACKPROTECTOR_STRONG
Date: Tue, 9 Jul 2019 20:26:41 +0300 [thread overview]
Message-ID: <CAHj3AV=v9ub2BYDZE_q3u9YEWbCLJaSNTVUC+z-nOVw-XQUziQ@mail.gmail.com> (raw)
In-Reply-To: <CAHhAz+hVweYwjxFuwMw2Hsb74trWiwacH3Qdk=5c78e01==drw@mail.gmail.com>
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On Tuesday, July 9, 2019, Muni Sekhar <munisekharrms@gmail.com> wrote:
> Hi All,
>
>
> My Kernel is built with the following options:
>
>
>
> CONFIG_CC_STACKPROTECTOR=y
>
> CONFIG_CC_STACKPROTECTOR_STRONG=y
>
>
>
>
>
> We use out-of-tree kernel modules in our project and I need to measure the
> performance of it by using a bit older gcc version 4.8.5.
>
>
>
> I can build the modules with gcc above 5 version, but when I try to use
> gcc version 4.8.5 I’m getting the following error:
>
>
>
> Makefile:693: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG:
> -fstack-protector-strong not supported by compiler
>
>
>
> So it looks like gcc 4.8.5 does not support CONFIG_CC_STACKPROTECTOR_STRONG
> option, but how to instruct gcc to ignore this one?
>
>
>
> In runtime, is it possible to instruct kernel to ignore
> “CONFIG_CC_STACKPROTECTOR_STRONG=y” (without building the kernel) by
> using sysctl or any other method?
>
>
>
Just disable it in your .config file
> Any help is appreciated.
>
>
> --
> Thanks,
> Sekhar
>
--
Regards / Mit besten Grüßen,
Denis
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next prev parent reply other threads:[~2019-07-09 17:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-09 17:24 CONFIG_CC_STACKPROTECTOR_STRONG Muni Sekhar
2019-07-09 17:26 ` Denis Kirjanov [this message]
2019-07-09 17:32 ` CONFIG_CC_STACKPROTECTOR_STRONG Muni Sekhar
2019-07-09 17:46 ` CONFIG_CC_STACKPROTECTOR_STRONG Denis Kirjanov
2019-07-09 18:04 ` CONFIG_CC_STACKPROTECTOR_STRONG Muni Sekhar
2019-07-09 19:58 ` CONFIG_CC_STACKPROTECTOR_STRONG Greg KH
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