[PATCH] kasan: Fix tests by removing -ffreestanding

[Huacai Chen]

CONFIG_CC_HAS_KASAN_MEMINTRINSIC_PREFIX hopes -fbuiltin for memset()/
memcpy()/memmove() if instrumentation is needed. This is the default
behavior but some archs pass -ffreestanding which implies -fno-builtin,
and then causes some kasan tests fail. So we remove -ffreestanding for
kasan tests.

Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
---
 mm/kasan/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
index 7634dd2a6128..edd1977a6b88 100644
--- a/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@ -45,7 +45,9 @@ CFLAGS_KASAN_TEST += -fno-builtin
 endif
 
 CFLAGS_kasan_test.o := $(CFLAGS_KASAN_TEST)
+CFLAGS_REMOVE_kasan_test.o := -ffreestanding
 CFLAGS_kasan_test_module.o := $(CFLAGS_KASAN_TEST)
+CFLAGS_REMOVE_kasan_test_module.o := -ffreestanding
 
 obj-y := common.o report.o
 obj-$(CONFIG_KASAN_GENERIC) += init.o generic.o report_generic.o shadow.o quarantine.o
-- 
2.39.3