diff --git a/src/os/src/linux/osSystem.c b/src/os/src/linux/osSystem.c
new file mode 100644
index 0000000000000000000000000000000000000000..052b7a22a8e9fe5dafffc4a90c8efa3643e4a06c
--- /dev/null
+++ b/src/os/src/linux/osSystem.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define _DEFAULT_SOURCE
+#include "os.h"
+#include "tconfig.h"
+#include "tglobal.h"
+#include "tulog.h"
+
+void* taosLoadDll(const char *filename) {
+  void *handle = dlopen (filename, RTLD_LAZY);  
+  if (!handle) {  
+    uError("load dll:%s failed, error:%s", filename, dlerror());  
+    return NULL;  
+  }
+
+  uDebug("dll %s loaded", filename);
+
+  return handle;
+}
+
+void* taosLoadSym(void* handle, char* name) {
+	void* sym = dlsym(handle, name);
+  char* error = NULL;
+  
+	if ((error = dlerror()) != NULL)  {  
+    uWarn("load sym:%s failed, error:%s", name, dlerror());  
+		return NULL;  
+	} 
+
+  uDebug("sym %s loaded", name)
+
+  return sym;
+}
+
+void taosCloseDll(void *handle) {
+  if (handle) {
+    dlclose(handle);
+  }
+}
+
+