diff --git a/sys/lwobject_info.h b/sys/lwobject_info.h
new file mode 100644
index 0000000..de7aecd
--- /dev/null
+++ b/sys/lwobject_info.h
@@ -0,0 +1,40 @@
+#ifndef LPC_LWOBJECT_INFO_H_
+#define LPC_LWOBJECT_INFO_H_
+
+/* Definition of argument values for lwobject_info()
+ */
+
+#include "configuration.h"
+
+/* LWOject info */
+#define LI_LWOBJECT_REFS                 -1
+#define LI_DATA_SIZE                     -2
+#define LI_DATA_SIZE_TOTAL               -3
+
+/* Program flags */
+#define LI_NO_INHERIT                   -10
+#define LI_NO_CLONE                     -11
+#define LI_NO_LIGHTWEIGHT               -12
+#define LI_SHARE_VARIABLES              -13
+
+/* Statistics about the program */
+#define LI_PROG_REFS                    -20
+
+#define LI_NUM_FUNCTIONS                -30
+#define LI_NUM_VARIABLES                -31
+#define LI_NUM_STRINGS                  -32
+#define LI_NUM_INHERITED                -33
+#define LI_NUM_INCLUDED                 -34
+
+#define LI_SIZE_FUNCTIONS               -35
+#define LI_SIZE_VARIABLES               -36
+#define LI_SIZE_STRINGS                 -37
+#define LI_SIZE_STRINGS_DATA            -38
+#define LI_SIZE_STRINGS_DATA_TOTAL      -39
+#define LI_SIZE_INHERITED               -40
+#define LI_SIZE_INCLUDED                -41
+
+#define LI_PROG_SIZE                    -42
+#define LI_PROG_SIZE_TOTAL              -43
+
+#endif /* LPC_LWOBJECT_INFO_H_ */