bootx_init.c:88: undefined reference to `__stack_chk_fail_local'

[Christian Kujau]

On Wed, 4 Jan 2017, Christophe LEROY wrote:
> Using GCC 5.4.0, I don't have that issue. bootx_init.o only contains reference
> to __stack_chk_fail

FWIW, building with a GCC 5.2 crosscompiler succeeds (with 
CONFIG_CC_STACKPROTECTOR_STRONG=y), but I don't know if it will boot 
though, see my other mail in this thread:

  https://lists.ozlabs.org/pipermail/linuxppc-dev/2017-January/152623.html

So, would the following be sufficient? It compiles, but I haven't had a 
chance to boot yet.


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


Thanks,
Christian.
-- 
BOFH excuse #156:

Zombie processes haunting the computer