[RESEND PATCH] ppc64/purgatory: Disabling GCC's stack protection

Laurent Dufour ldufour at linux.vnet.ibm.com
Tue Apr 8 07:44:45 PDT 2014

Some Linux distributions, like Suse, are turning on the GCC's stack
protection mechanism by default (-fstack-protector). When building the
purgatory with this option, this leads to link issues that are revealed at
runtime when the purgatory is loaded because symbols like __stack_chk_fail
are unresolved.

This patch forces this stack protection mechanism to be turned off when
building the purgatory on ppc64 BE and LE.

Signed-off-by: Laurent Dufour <ldufour at linux.vnet.ibm.com>
 purgatory/arch/ppc64/Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/purgatory/arch/ppc64/Makefile b/purgatory/arch/ppc64/Makefile
index 31076e9..712e2b1 100644
--- a/purgatory/arch/ppc64/Makefile
+++ b/purgatory/arch/ppc64/Makefile
@@ -9,7 +9,7 @@ ppc64_PURGATORY_SRCS += purgatory/arch/ppc64/console-ppc64.c
 ppc64_PURGATORY_SRCS += purgatory/arch/ppc64/crashdump_backup.c
 ppc64_PURGATORY_SRCS += purgatory/arch/ppc64/misc.S
-ppc64_PURGATORY_EXTRA_CFLAGS += -m64 -msoft-float
+ppc64_PURGATORY_EXTRA_CFLAGS += -m64 -msoft-float -fno-stack-protector
 ifeq ($(SUBARCH),BE)
 	ppc64_PURGATORY_EXTRA_LDFLAGS += -melf64ppc

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