1 files changed, 5 insertions, 0 deletions
diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index 34d3dd0728f..d2c09e81434 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -882,6 +882,11 @@ rust_task_kill_all(rust_task *task) { /* Used for linked failure */
     main_taskgroup_failed = true;
 }
 
+extern "C" CDECL
+bool rust_task_is_unwinding(rust_task *rt) {
+    return rt->unwinding;
+}
+
 extern "C" rust_cond_lock*
 rust_create_cond_lock() {
     return new rust_cond_lock();