diff --git a/compiler-rt/lib/ubsan/ubsan_init.cpp b/compiler-rt/lib/ubsan/ubsan_init.cpp
--- a/compiler-rt/lib/ubsan/ubsan_init.cpp
+++ b/compiler-rt/lib/ubsan/ubsan_init.cpp
@@ -37,6 +37,7 @@
   SanitizerToolName = GetSanititizerToolName();
   CacheBinaryName();
   InitializeFlags();
+  __sanitizer::InitializePlatformEarly();
   __sanitizer_set_report_path(common_flags()->log_path);
   AndroidLogInit();
   InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);