ubsan: Reintroduce signed overflow sanitizer

[linux-2.6-block.git] / scripts / Makefile.lib

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 52efc520ae4fa3c201d1e87a1a581e886dcf77b8..b4a248c20654f172f1dbdbf158068a61d8c80358 100644 (file)
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -177,6 +177,9 @@ ifeq ($(CONFIG_UBSAN),y)
 _c_flags += $(if $(patsubst n%,, \
                $(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SANITIZE)y), \
                $(CFLAGS_UBSAN))
+_c_flags += $(if $(patsubst n%,, \
+               $(UBSAN_SIGNED_WRAP_$(basetarget).o)$(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SIGNED_WRAP)$(UBSAN_SANITIZE)y), \
+               $(CFLAGS_UBSAN_SIGNED_WRAP))
 endif
 
 ifeq ($(CONFIG_KCOV),y)