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Date: Wed, 26 Sep 2018 04:28:07 -0500
From: Segher Boessenkool <segher@kernel.crashing.org>
To: Christophe LEROY <christophe.leroy@c-s.fr>
Cc: Russell Currey <ruscur@russell.cc>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
 Andrew Donnellan <andrew.donnellan@au1.ibm.com>,
 linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 2/2] powerpc/64: add stack protector support
Message-ID: <20180926092806.GM23155@gate.crashing.org>
References: <2b934594d21ade67a4092637cf9e6b7d2d131187.1537801613.git.christophe.leroy@c-s.fr>
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On Wed, Sep 26, 2018 at 09:58:30AM +0200, Christophe LEROY wrote:
> Segher, any idea about this problem ?

> >>arch/powerpc/platforms/powermac/bootx_init.o: In function `bootx_printf':
> >>/var/lib/jenkins-slave/workspace/snowpatch/snowpatch-linux-
> >>sparse/linux/arch/powerpc/platforms/powermac/bootx_init.c:88:
> >>undefined reference to `__stack_chk_fail_local'

Are you building as PIC?  Are you linking libssp_nonshared.a?  Why not?

:-)


Segher