Index: kernel/generic/include/mm/as.h
===================================================================
--- kernel/generic/include/mm/as.h	(revision fc4788545f82a1def816a3bc5940db8c6f0c1a9f)
+++ kernel/generic/include/mm/as.h	(revision 9b415c96f2f29f61f5d4f5f7ea3fd3b1ef1ea27a)
@@ -313,4 +313,5 @@
 extern sysarg_t sys_as_area_change_flags(uintptr_t, unsigned int);
 extern sysarg_t sys_as_area_destroy(uintptr_t);
+extern sysarg_t sys_as_get_unmapped_area(uintptr_t, size_t);
 
 /* Introspection functions. */
Index: kernel/generic/include/syscall/syscall.h
===================================================================
--- kernel/generic/include/syscall/syscall.h	(revision fc4788545f82a1def816a3bc5940db8c6f0c1a9f)
+++ kernel/generic/include/syscall/syscall.h	(revision 9b415c96f2f29f61f5d4f5f7ea3fd3b1ef1ea27a)
@@ -59,4 +59,5 @@
 	SYS_AS_AREA_CHANGE_FLAGS,
 	SYS_AS_AREA_DESTROY,
+	SYS_AS_GET_UNMAPPED_AREA,
 	
 	SYS_IPC_CALL_SYNC_FAST,