Le 26/09/2018 à 13:50, Michael Ellerman a écrit :
Christophe LEROY <christophe.le...@c-s.fr> writes:
Le 26/09/2018 à 11:28, Segher Boessenkool a écrit :
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?

Spotted, thanks.

arch/powerpc/platforms/powermac/Makefile contains:

CFLAGS_bootx_init.o             += -fPIC
...

Or maybe stack protection on bootx_init doesn't make much sense and we
could just do the following ?

CFLAGS_bootx_init.o             += -fPIC $(call cc-option, -fno-stack-protector)

That would be fine by me.

Yes, that's what I did in v4, sent a few minutes ago. Indeed the same was already done for prom_init, which is similar.

Christophe

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