provided code

src/userprog/process.h

@@ -0,0 +1,11 @@
+#ifndef USERPROG_PROCESS_H
+#define USERPROG_PROCESS_H
+
+#include "threads/thread.h"
+
+tid_t process_execute (const char *file_name);
+int process_wait (tid_t);
+void process_exit (void);
+void process_activate (void);
+
+#endif /* userprog/process.h */