__LXSYSCALL1(int, sbrk, void*, addr)
-__LXSYSCALL1(void*, brk, size_t, size)
+__LXSYSCALL1(void*, brk, unsigned long, size)
+
+__LXSYSCALL(pid_t, getpid)
+
+__LXSYSCALL(pid_t, getppid)
+
+__LXSYSCALL1(void, _exit, int, status)
+
+__LXSYSCALL1(unsigned int, sleep, unsigned int, seconds)
+
+__LXSYSCALL(int, pause)
#endif /* __LUNAIX_UNISTD_H */