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-rw-r--r--config/bootstrap-ubsan.mk7
1 files changed, 7 insertions, 0 deletions
diff --git a/config/bootstrap-ubsan.mk b/config/bootstrap-ubsan.mk
new file mode 100644
index 0000000000..2d21e832e2
--- /dev/null
+++ b/config/bootstrap-ubsan.mk
@@ -0,0 +1,7 @@
+# This option enables -fsanitize=undefined for stage2 and stage3.
+
+STAGE2_CFLAGS += -fsanitize=undefined
+STAGE3_CFLAGS += -fsanitize=undefined
+POSTSTAGE1_LDFLAGS += -fsanitize=undefined -static-libubsan -lpthread \
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ubsan/ \
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ubsan/.libs