diff --git a/src/libecmaoperations/ecma-global-object.c b/src/libecmaoperations/ecma-global-object.c
new file mode 100644
index 000000000..e421c7f07
--- /dev/null
+++ b/src/libecmaoperations/ecma-global-object.c
@@ -0,0 +1,56 @@
+/* Copyright 2014 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "globals.h"
+#include "ecma-globals.h"
+#include "ecma-global-object.h"
+#include "ecma-helpers.h"
+#include "ecma-magic-strings.h"
+
+/** \addtogroup ecma ---TODO---
+ * @{
+ * 
+ * \addtogroup ecmaglobalobject ECMA Global object related routines
+ * @{
+ */
+
+/**
+ * The Global Object construction routine.
+ *
+ * See also: ECMA-262 v5, 15.1
+ *
+ * @return pointer to the constructed object
+ */
+ecma_object_t*
+ecma_op_create_global_object( void)
+{
+  ecma_object_t *glob_obj_p = ecma_create_object( NULL, true, ECMA_OBJECT_TYPE_GENERAL);
+
+  ecma_property_t *undefined_prop_p = ecma_create_named_data_property( glob_obj_p,
+                                                                       ecma_get_magic_string( ECMA_MAGIC_STRING_UNDEFINED),
+                                                                       ECMA_PROPERTY_NOT_WRITABLE,
+                                                                       ECMA_PROPERTY_NOT_ENUMERABLE,
+                                                                       ECMA_PROPERTY_NOT_CONFIGURABLE);
+  JERRY_ASSERT( ecma_is_value_undefined( undefined_prop_p->u.named_data_property.value) );
+
+  TODO( /* Define NaN, Infinity, eval, parseInt, parseFloat, isNaN, isFinite properties */ );
+
+  return glob_obj_p;
+} /* ecma_op_create_global_object */
+
+/**
+ * @}
+ * @}
+ */
diff --git a/src/libecmaoperations/ecma-global-object.h b/src/libecmaoperations/ecma-global-object.h
new file mode 100644
index 000000000..60782170a
--- /dev/null
+++ b/src/libecmaoperations/ecma-global-object.h
@@ -0,0 +1,35 @@
+/* Copyright 2014 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ECMA_GLOBAL_OBJECT_H
+#define ECMA_GLOBAL_OBJECT_H
+
+#include "ecma-globals.h"
+
+/** \addtogroup ecma ---TODO---
+ * @{
+ * 
+ * \addtogroup ecmaglobalobject ECMA Global object related routines
+ * @{
+ */
+
+extern ecma_object_t* ecma_op_create_global_object( void);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* !ECMA_GLOBAL_OBJECT_H */
diff --git a/src/libecmaoperations/ecma-magic-strings.c b/src/libecmaoperations/ecma-magic-strings.c
index 56cd59b61..8672eb66a 100644
--- a/src/libecmaoperations/ecma-magic-strings.c
+++ b/src/libecmaoperations/ecma-magic-strings.c
@@ -44,6 +44,8 @@ ecma_get_magic_string( ecma_magic_string_id_t id) /**< magic string id */
       return (ecma_char_t*) "constructor";
     case ECMA_MAGIC_STRING_CALLER:
       return (ecma_char_t*) "caller";
+    case ECMA_MAGIC_STRING_UNDEFINED:
+      return (ecma_char_t*) "undefined";
     }
 
   JERRY_UNREACHABLE();
diff --git a/src/libecmaoperations/ecma-magic-strings.h b/src/libecmaoperations/ecma-magic-strings.h
index 4428f8583..ebd69a1d3 100644
--- a/src/libecmaoperations/ecma-magic-strings.h
+++ b/src/libecmaoperations/ecma-magic-strings.h
@@ -34,7 +34,8 @@ typedef enum
   ECMA_MAGIC_STRING_EVAL, /**< "eval" */
   ECMA_MAGIC_STRING_PROTOTYPE, /**< "prototype" */
   ECMA_MAGIC_STRING_CONSTRUCTOR, /**< "constructor" */
-  ECMA_MAGIC_STRING_CALLER /**< "caller" */
+  ECMA_MAGIC_STRING_CALLER, /**< "caller" */
+  ECMA_MAGIC_STRING_UNDEFINED /**< undefined */
 } ecma_magic_string_id_t;
 
 extern const ecma_char_t* ecma_get_magic_string( ecma_magic_string_id_t id);