Re: Linux 5.8-rc1

[Gabriel C]

Am Di., 16. Juni 2020 um 23:25 Uhr schrieb Arvind Sankar
<nivedita@xxxxxxxxxxxx>:
>
> On Tue, Jun 16, 2020 at 11:17:08PM +0200, Gabriel C wrote:
> > Am Di., 16. Juni 2020 um 22:33 Uhr schrieb Arvind Sankar
> > <nivedita@xxxxxxxxxxxx>:
> > >
> > > Can you attach the output of gcc -dumpspecs and gcc -v? I suspect your
> > > compiler enables stack protector by default. My distro compiler does
> > > that too, but not if -ffreestanding is enabled (which it is for the
> > > purgatory).
> > >
> >
> > Files including config uploaded to there:
> >
> > http://crazy.dev.frugalware.org/kernel/
> >
>
> Yeah, your gcc doesn't have the -ffreestanding handling. Mine (from
> gentoo) has this in the -dumpspecs output:
>
> *cc1_options:
> ... %{nostdlib|nodefaultlibs|ffreestanding:-fno-stack-protector} ...
>
> to switch off the default ssp when the standard libraries aren't available.

I wondered what they enable to do that. it turns out it is a custom patch.
While I think having that is not bad, such patches lead to bugs like this one.