Index: lib/ubsan/ubsan_init.cc
===================================================================
--- lib/ubsan/ubsan_init.cc
+++ lib/ubsan/ubsan_init.cc
@@ -40,7 +40,9 @@
   InitializeFlags();
   __sanitizer_set_report_path(common_flags()->log_path);
   AndroidLogInit();
+#if !SANITIZER_OPENBSD
   InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
+#endif
   CommonInit();
 }
 
Index: lib/ubsan/ubsan_platform.h
===================================================================
--- lib/ubsan/ubsan_platform.h
+++ lib/ubsan/ubsan_platform.h
@@ -15,8 +15,8 @@
 
 // Other platforms should be easy to add, and probably work as-is.
 #if defined(__linux__) || defined(__FreeBSD__) || defined(__APPLE__) ||        \
-    defined(__NetBSD__) || (defined(__sun__) && defined(__svr4__)) ||          \
-    defined(_WIN32) || defined(__Fuchsia__)
+    defined(__NetBSD__) || defined(__OpenBSD__) || \
+    (defined(__sun__) && defined(__svr4__)) || defined(_WIN32) || defined(__Fuchsia__)       
 # define CAN_SANITIZE_UB 1
 #else
 # define CAN_SANITIZE_UB 0