Index: libc/include/libc.h
===================================================================
--- libc/include/libc.h	(revision 3a6d665633a813f393a6c1f8a4612dc30c63e787)
+++ libc/include/libc.h	(revision 2b34a88b4e8265f05c6b4fe5c8d87602d143e307)
@@ -33,4 +33,9 @@
 
 
+#define __SYSCALL0(id) __syscall(id, 0, 0, 0)
+#define __SYSCALL1(id, p1) __syscall(id, p1, 0, 0)
+#define __SYSCALL2(id, p1, p2) __syscall(id, p1, p2, 0)
+
+
 typedef enum {
 	SYS_CTL = 0,
Index: libc/include/unistd.h
===================================================================
--- libc/include/unistd.h	(revision 3a6d665633a813f393a6c1f8a4612dc30c63e787)
+++ libc/include/unistd.h	(revision 2b34a88b4e8265f05c6b4fe5c8d87602d143e307)
@@ -35,4 +35,5 @@
 
 extern ssize_t write(int fd, const void * buf, size_t count);
+extern void _exit(int status);
 
 #endif