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-rw-r--r--arch/x86/Makefile5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index edbd0ca6206..1b68659c41b 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -81,6 +81,11 @@ ifdef CONFIG_CC_STACKPROTECTOR
endif
endif
+# Don't unroll struct assignments with kmemcheck enabled
+ifeq ($(CONFIG_KMEMCHECK),y)
+ KBUILD_CFLAGS += $(call cc-option,-fno-builtin-memcpy)
+endif
+
# Stackpointer is addressed different for 32 bit and 64 bit x86
sp-$(CONFIG_X86_32) := esp
sp-$(CONFIG_X86_64) := rsp