1 files changed, 19 insertions, 0 deletions
diff --git a/offload/libomptarget/OpenMP/API.cpp b/offload/libomptarget/OpenMP/API.cpp
index 4576f9b..b0f0573 100644
--- a/offload/libomptarget/OpenMP/API.cpp
+++ b/offload/libomptarget/OpenMP/API.cpp
@@ -16,6 +16,7 @@
 #include "rtl.h"
 
 #include "OpenMP/InternalTypes.h"
+#include "OpenMP/InteropAPI.h"
 #include "OpenMP/Mapping.h"
 #include "OpenMP/OMPT/Interface.h"
 #include "OpenMP/omp.h"
@@ -683,3 +684,21 @@ EXTERN void *omp_get_mapped_ptr(const void *Ptr, int DeviceNum) {
 
   return TPR.TargetPointer;
 }
+
+// This routine gets called from the Host RTL at sync points (taskwait, barrier,
+// ...) so we can synchronize the necessary objects from the offload side.
+EXTERN void __tgt_target_sync(ident_t *loc_ref, int gtid, void *current_task,
+                              void *event) {
+  if (!RTLAlive)
+    return;
+
+  RTLOngoingSyncs++;
+  if (!RTLAlive) {
+    RTLOngoingSyncs--;
+    return;
+  }
+
+  syncImplicitInterops(gtid, event);
+
+  RTLOngoingSyncs--;
+}