diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_interface.inc b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_interface.inc
--- a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_interface.inc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_interface.inc
@@ -29,4 +29,5 @@
 INTERFACE_WEAK_FUNCTION(__sanitizer_cov_trace_pc_indir)
 INTERFACE_WEAK_FUNCTION(__sanitizer_cov_trace_switch)
 INTERFACE_WEAK_FUNCTION(__sanitizer_cov_8bit_counters_init)
+INTERFACE_WEAK_FUNCTION(__sanitizer_cov_bool_flag_init)
 INTERFACE_WEAK_FUNCTION(__sanitizer_cov_pcs_init)
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cpp
--- a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cpp
@@ -207,6 +207,7 @@
 SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_cov_trace_gep, void) {}
 SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_cov_trace_pc_indir, void) {}
 SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_cov_8bit_counters_init, void) {}
+SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_cov_bool_flag_init, void) {}
 SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_cov_pcs_init, void) {}
 }  // extern "C"
 // Weak definition for code instrumented with -fsanitize-coverage=stack-depth
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_interface_internal.h b/compiler-rt/lib/sanitizer_common/sanitizer_interface_internal.h
--- a/compiler-rt/lib/sanitizer_common/sanitizer_interface_internal.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_interface_internal.h
@@ -109,8 +109,10 @@
                                            __sanitizer::u32*);
   SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
   void __sanitizer_cov_8bit_counters_init();
-  SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
-  void __sanitizer_cov_pcs_init();
+  SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE void
+  __sanitizer_cov_bool_flag_init();
+  SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE void
+  __sanitizer_cov_pcs_init();
 } // extern "C"
 
 #endif  // SANITIZER_INTERFACE_INTERNAL_H