diff --git a/linker/linker_utils.cpp b/linker/linker_utils.cpp
index 661e7cb..789d5c1 100644
--- a/linker/linker_utils.cpp
+++ b/linker/linker_utils.cpp
@@ -239,3 +239,8 @@
     }
   }
 }
+
+bool is_init() {
+  static bool ret = (getpid() == 1);
+  return ret;
+}