Index: uspace/lib/c/include/stdlib.h
===================================================================
--- uspace/lib/c/include/stdlib.h	(revision 2e7291a2727325f0a8e588c75f713d17b4f5a1f3)
+++ uspace/lib/c/include/stdlib.h	(revision bc5ffebef51b8e34c3973174d9f9002c59161553)
@@ -46,4 +46,7 @@
 	} while (0)
 
+#define core() \
+	*((int *) 0) = 0xbadbad;
+
 #define exit(status)  _exit((status))