CONFIG_CC_STACKPROTECTOR_STRONG

[Denis Kirjanov]

On Tuesday, July 9, 2019, Muni Sekhar <munisekharrms at 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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