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
