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From: Christophe LEROY <christophe.leroy@c-s.fr>
To: benh@au1.ibm.com, Christian Kujau <lists@nerdbynature.de>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: bootx_init.c:88: undefined reference to `__stack_chk_fail_local'
Date: Tue, 10 Jan 2017 07:12:33 +0100	[thread overview]
Message-ID: <f407f60c-2ba5-a324-da92-136524603921@c-s.fr> (raw)
In-Reply-To: <1484022722.21117.8.camel@au1.ibm.com>



Le 10/01/2017 à 05:32, Benjamin Herrenschmidt a écrit :
> On Mon, 2017-01-09 at 18:11 -0800, Christian Kujau wrote:
>> So, with -fno-stack-protector my GCC 4.9.2 compiles with
>> CC_STACKPROTECTOR_STRONG=y but panics during boot:
>
> How can it make any sense to have -fno-stack-protector and
> CC_STACKPROTECTOR_STRONG=y at the same time ?
>

As far as I understand, Christian means no stack protector on file 
bootx_init.o, see below

Christophe

diff --git a/arch/powerpc/platforms/powermac/Makefile 
b/arch/powerpc/platforms/powermac/Makefile
index 1eb7b45..c7dcab9 100644
--- a/arch/powerpc/platforms/powermac/Makefile
+++ b/arch/powerpc/platforms/powermac/Makefile
@@ -1,4 +1,4 @@
-CFLAGS_bootx_init.o  		+= -fPIC
+CFLAGS_bootx_init.o  		+= -fPIC -fno-stack-protector

  ifdef CONFIG_FUNCTION_TRACER
  # Do not trace early boot code

  reply	other threads:[~2017-01-10  6:12 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 [this message]
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
2017-01-13 12:15                   ` Christophe LEROY
2017-01-13 12:23                     ` David Laight

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