gboolean mono_gc_is_critical_method (MonoMethod *method);
+gpointer mono_gc_thread_attach (THREAD_INFO_TYPE *info);
+
+void mono_gc_thread_detach_with_lock (THREAD_INFO_TYPE *info);
+
+gboolean mono_gc_thread_in_critical_region (THREAD_INFO_TYPE *info);
+
/* If set, print debugging messages around finalizers. */
extern gboolean log_finalizers;