From: Segher Boessenkool <segher@kernel.crashing.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Christophe LEROY <christophe.leroy@c-s.fr>,
Christian Kujau <lists@nerdbynature.de>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: bootx_init.c:88: undefined reference to `__stack_chk_fail_local'
Date: Thu, 12 Jan 2017 12:07:14 -0600 [thread overview]
Message-ID: <20170112180713.GU28613@gate.crashing.org> (raw)
In-Reply-To: <1484234447.2492.34.camel@kernel.crashing.org>
On Thu, Jan 12, 2017 at 09:20:47AM -0600, Benjamin Herrenschmidt wrote:
> On Thu, 2017-01-12 at 15:42 +0100, Christophe LEROY wrote:
> > The 4.6.3 uses __stack_chk_guard, while the 4.4.4 and 4.8.3 use
> > -28680(r2)
> >
> > Is it dependent on the way GCC is built ? Then do we have a way to
> > know,
> > when we compile, which method GCC will use ?
> >
> > See details below for each of the 3 GCC versions.
>
> I think it depends if you built it along with glibc (so it can produce
> userspace binaries) or not.
Right. Tony's compilers are built using a (modified version of) buildall,
and buildall goes out of its way to build without libc whatsoever, even
if the configuration (powerpc64-linux, for example) expects one.
Which leads to TARGET_LIBC_PROVIDES_SSP being undefined (it would normally
be true for glibc >= 2.4), and that is all. Mystery solved. Thanks!
Segher
next prev parent reply other threads:[~2017-01-12 18:13 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-03 15:25 bootx_init.c:88: undefined reference to `__stack_chk_fail_local' Christian Kujau
2017-01-03 19:20 ` Christian Kujau
2017-01-03 22:50 ` Benjamin Herrenschmidt
2017-01-03 22:57 ` Christian Kujau
2017-01-04 8:23 ` Christophe LEROY
2017-01-04 8:40 ` Segher Boessenkool
2017-01-04 7:32 ` Christophe LEROY
2017-01-04 15:22 ` Christian Kujau
2017-01-04 18:33 ` Christian Kujau
2017-01-10 2:11 ` Christian Kujau
2017-01-10 4:32 ` Benjamin Herrenschmidt
2017-01-10 6:12 ` Christophe LEROY
2017-01-10 18:46 ` Christian Kujau
2017-01-10 6:26 ` Christophe LEROY
2017-01-11 22:54 ` Segher Boessenkool
2017-01-12 7:52 ` Christophe LEROY
2017-01-12 14:42 ` Christophe LEROY
2017-01-12 15:20 ` Benjamin Herrenschmidt
2017-01-12 18:07 ` Segher Boessenkool [this message]
2017-01-13 12:15 ` Christophe LEROY
2017-01-13 12:23 ` David Laight
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