2 files changed, 19 insertions, 0 deletions
diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
index 78816737059..0025161988c 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
@@ -1823,6 +1823,23 @@ ScriptInterpreterPython::ScriptedThreadPlanShouldStop(StructuredData::ObjectSP i
     return should_stop;
 }
 
+bool
+ScriptInterpreterPython::ScriptedThreadPlanIsStale(StructuredData::ObjectSP implementor_sp, bool &script_error)
+{
+    bool is_stale = true;
+    StructuredData::Generic *generic = nullptr;
+    if (implementor_sp)
+        generic = implementor_sp->GetAsGeneric();
+    if (generic)
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        is_stale = g_swig_call_thread_plan(generic->GetValue(), "is_stale", nullptr, script_error);
+        if (script_error)
+            return true;
+    }
+    return is_stale;
+}
+
 lldb::StateType
 ScriptInterpreterPython::ScriptedThreadPlanGetRunState(StructuredData::ObjectSP implementor_sp, bool &script_error)
 {
diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
index 263bb527d83..5b6950379e2 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
@@ -198,6 +198,8 @@ public:
 
     bool ScriptedThreadPlanShouldStop(StructuredData::ObjectSP implementor_sp, Event *event, bool &script_error) override;
 
+    bool ScriptedThreadPlanIsStale(StructuredData::ObjectSP implementor_sp, bool &script_error) override;
+
     lldb::StateType ScriptedThreadPlanGetRunState(StructuredData::ObjectSP implementor_sp, bool &script_error) override;
 
     StructuredData::GenericSP OSPlugin_CreatePluginObject(const char *class_name, lldb::ProcessSP process_sp) override;