linux-kernel - Re: [PATCH RFC] powerpc/32: fix handling of stack protector with recent GCC

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Message-ID: <87lgtrvr14.fsf@concordia.ellerman.id.au>
Date:   Tue, 31 Jan 2017 14:37:11 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Christian Kujau <lists@...dbynature.de>,
        Christophe Leroy <christophe.leroy@....fr>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Scott Wood <oss@...error.net>, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH RFC] powerpc/32: fix handling of stack protector with recent GCC

Christian Kujau <lists@...dbynature.de> writes:

> On Mon, 16 Jan 2017, Christophe Leroy wrote:
>> Since 2005, powerpc GCC doesn't manage anymore __stack_chk_guard as
>> a global variable but as some value located at -0x7008(r2)
>
> Is this still an "RFC" or is there a chance that this will land in 4.10?

No. I've reverted the stack protector support in my fixes branch (which
is in linux-next), and it will go into 4.10 this week.

cheers