Support exit status for exit/wait

One test case for returning a exit status
Passes usertests, but haven't used it to simplify tests

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/defs.h b/kernel/defs.h
index 23dcd41..f893d28 100644
--- a/kernel/defs.h
+++ b/kernel/defs.h
@@ -82,7 +82,7 @@ void            printfinit(void);
 
 // proc.c
 int             cpuid(void);
-void            exit(void);
+void            exit(int);
 int             fork(void);
 int             growproc(int);
 pagetable_t     proc_pagetable(struct proc *);
@@ -97,7 +97,7 @@ void            sched(void);
 void            setproc(struct proc*);
 void            sleep(void*, struct spinlock*);
 void            userinit(void);
-int             wait(void);
+int             wait(uint64);
 void            wakeup(void*);
 void            yield(void);
 int             either_copyout(int user_dst, uint64 dst, void *src, uint64 len);