diff --git a/wulq.c b/wulq.c
new file mode 100644
index 0000000..2160f6e
--- /dev/null
+++ b/wulq.c
@@ -0,0 +1,47 @@
+#include <unistd.h>
+//#include <linux/sys.h>
+#include <errno.h>
+#include <string.h>
+#include<asm/segment.h>
+#include <linux/kernel.h>
+#include <signal.h>
+
+
+int sys_pipe2(void){
+	return 0;
+}
+int sys_execve2(const char * path, char * argv[], char * envp[]){
+	printk("hello,welcome\n");
+	return 0;
+}
+int sys_getdents(unsigned int fd, struct linux_dirent *drip, unsigned int count ){
+	printk("hello,welcome\n");
+	return 0;
+}
+
+
+void handler(int signo)
+{
+}
+
+int  sys_sleep(unsigned int seconds){
+	printk("hello,welcome\n");
+	struct	sigaction act,oact;
+	act.sa_handler = handler;
+	act.sa_flags = 0;
+	sys_signal(SIGALRM,SIG_IGN,NULL);
+
+	sys_sigaction(SIGALRM,&act,&oact);
+	sys_alarm(seconds);
+	pause();
+	int ret = sys_alarm(0);
+	sys_sigaction(SIGALRM,&oact,NULL);
+	
+	return ret;
+}
+long sys_getcwd(char * buf, size_t size){
+	printk("hello,welcome\n");
+	return 0;
+}
+
+