Clang changed the way it enables UBSan trapping mode. Update the Makefile logic to discover it.
Suggested-by: Fangrui Song <mask...@google.com> Link: https://lore.kernel.org/lkml/cafp8o3jivzh+aav7n90nk7u2bhrnst6mrp0zhtfq-vj0m4+...@mail.gmail.com/ Reviewed-by: Fangrui Song <mask...@google.com> Reviewed-by: Justin Stitt <justinst...@google.com> Cc: Nathan Chancellor <nat...@kernel.org> Cc: Masahiro Yamada <masahi...@kernel.org> Cc: Nicolas Schier <nico...@fjasle.eu> Cc: Nick Desaulniers <ndesaulni...@google.com> Cc: Bill Wendling <mo...@google.com> Cc: linux-kbu...@vger.kernel.org Cc: l...@lists.linux.dev Signed-off-by: Kees Cook <keesc...@chromium.org> --- scripts/Makefile.ubsan | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/Makefile.ubsan b/scripts/Makefile.ubsan index 4749865c1b2c..7cf42231042b 100644 --- a/scripts/Makefile.ubsan +++ b/scripts/Makefile.ubsan @@ -10,6 +10,6 @@ ubsan-cflags-$(CONFIG_UBSAN_DIV_ZERO) += -fsanitize=integer-divide-by-zero ubsan-cflags-$(CONFIG_UBSAN_UNREACHABLE) += -fsanitize=unreachable ubsan-cflags-$(CONFIG_UBSAN_BOOL) += -fsanitize=bool ubsan-cflags-$(CONFIG_UBSAN_ENUM) += -fsanitize=enum -ubsan-cflags-$(CONFIG_UBSAN_TRAP) += -fsanitize-undefined-trap-on-error +ubsan-cflags-$(CONFIG_UBSAN_TRAP) += $(call cc-option,-fsanitize-trap=undefined,-fsanitize-undefined-trap-on-error) export CFLAGS_UBSAN := $(ubsan-cflags-y) -- 2.34.1
