Handle the dlopen static initialization

Summary: Handle the dlopen static initialization

Reviewed By: yfeldblum

Differential Revision: D9847032

fbshipit-source-id: 089628ef88cf72d189a8904a3f2231f1affc764c

folly/synchronization/Rcu.cpp

@@ -15,9 +15,12 @@
  */
 #include <folly/synchronization/Rcu.h>
 
+#include <folly/detail/StaticSingletonManager.h>
+
 namespace folly {
 
-FOLLY_STATIC_CTOR_PRIORITY_MAX folly::Indestructible<rcu_domain<RcuTag>>
-    rcu_default_domain_;
+FOLLY_STATIC_CTOR_PRIORITY_MAX folly::Indestructible<rcu_domain<RcuTag>*>
+    rcu_default_domain_(
+        folly::detail::createGlobal<rcu_domain<RcuTag>, RcuTag>());
 
 } // namespace folly

folly/synchronization/Rcu.h

@@ -380,10 +380,10 @@ class rcu_domain {
   void half_sync(bool blocking, list_head& cbs);
 };
 
-extern folly::Indestructible<rcu_domain<RcuTag>> rcu_default_domain_;
+extern folly::Indestructible<rcu_domain<RcuTag>*> rcu_default_domain_;
 
 inline rcu_domain<RcuTag>* rcu_default_domain() {
-  return &(*rcu_default_domain_);
+  return *rcu_default_domain_;
 }
 
 // Main reader guard class.