From dff7ab3f8f969cb9c1e95e6d7a74b99428e06971 Mon Sep 17 00:00:00 2001
From: Robert Morris <rtm@csail.mit.edu>
Date: Wed, 5 Jun 2019 15:05:56 -0400
Subject: make -O work with asm volatile(...)

---
 start.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'start.c')

diff --git a/start.c b/start.c
index ce22be8..c4689dc 100644
--- a/start.c
+++ b/start.c
@@ -52,5 +52,5 @@ mstart()
   w_tp(id);
 
   // call main() in supervisor mode.
-  asm("mret");
+  asm volatile("mret");
 }
-- 
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