--- /dev/null
+#ifndef __LUNAIX_DMM_H
+#define __LUNAIX_DMM_H
+// Dynamic Memory (i.e., heap) Manager
+
+#include <stddef.h>
+
+void
+lxsbrk(void* current, void* next);
+
+void
+lxmalloc(size_t size);
+
+void
+lxfree(size_t size);
+
+#endif /* __LUNAIX_DMM_H */