1 files changed, 4 insertions, 0 deletions
diff --git a/lldb/source/Expression/IRExecutionUnit.cpp b/lldb/source/Expression/IRExecutionUnit.cpp
index 4d5c78e19b5..17bd03ae6cb 100644
--- a/lldb/source/Expression/IRExecutionUnit.cpp
+++ b/lldb/source/Expression/IRExecutionUnit.cpp
@@ -238,6 +238,8 @@ IRExecutionUnit::GetRunnableInfo(Error &error,
 {
     lldb::ProcessSP process_sp(GetProcessWP().lock());
     
+    static Mutex s_runnable_info_mutex(Mutex::Type::eMutexTypeRecursive);
+    
     func_addr = LLDB_INVALID_ADDRESS;
     func_end = LLDB_INVALID_ADDRESS;
     
@@ -256,6 +258,8 @@ IRExecutionUnit::GetRunnableInfo(Error &error,
         return;
     };
     
+    Mutex::Locker runnable_info_mutex_locker(s_runnable_info_mutex);
+    
     m_did_jit = true;
     
     Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));