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authorFabrice Fontaine <fontaine.fabrice@gmail.com>2021-05-10 07:31:33 +0200
committerVasily Gorbik <gor@linux.ibm.com>2021-06-07 17:07:00 +0200
commit42e8d652438f5ddf04e5dac299cb5e623d113dc0 (patch)
tree395252166f773d0c07d9e0ca67278226a729ab67 /arch/s390/purgatory/Makefile
parents390/ccwgroup: use BUS_NOTIFY_UNBOUND_DRIVER to trigger ungrouping (diff)
downloadlinux-42e8d652438f5ddf04e5dac299cb5e623d113dc0.tar.xz
linux-42e8d652438f5ddf04e5dac299cb5e623d113dc0.zip
s390: disable SSP when needed
Though -nostdlib is passed in PURGATORY_LDFLAGS and -ffreestanding in KBUILD_CFLAGS_DECOMPRESSOR, -fno-stack-protector must also be passed to avoid linking errors related to undefined references to '__stack_chk_guard' and '__stack_chk_fail' if toolchain enforces -fstack-protector. Fixes - https://gitlab.com/kubu93/buildroot/-/jobs/1247043361 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com> Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com> Link: https://lore.kernel.org/r/20210510053133.1220167-1-fontaine.fabrice@gmail.com Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/purgatory/Makefile')
-rw-r--r--arch/s390/purgatory/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index c57f8c40e992..21c4ebe29b9a 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -24,6 +24,7 @@ KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding
KBUILD_CFLAGS += -c -MD -Os -m64 -msoft-float -fno-common
+KBUILD_CFLAGS += -fno-stack-protector
KBUILD_CFLAGS += $(CLANG_FLAGS)
KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS))