From df1ee4e1af9340a8207535c5009ec289bf1ecda1 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@swtch.com>
Date: Sun, 1 Jun 2008 08:41:51 -0400
Subject: libthread: fix 64-bit bug in threadstart (Nathaniel Filardo)

---
 src/libthread/thread.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/libthread/thread.c')

diff --git a/src/libthread/thread.c b/src/libthread/thread.c
index 9b47e769..4e3e473c 100644
--- a/src/libthread/thread.c
+++ b/src/libthread/thread.c
@@ -86,7 +86,7 @@ threadstart(uint y, uint x)
 	_Thread *t;
 	ulong z;
 
-	z = x<<16;	/* hide undefined 32-bit shift from 32-bit compilers */
+	z = (ulong)x << 16;	/* hide undefined 32-bit shift from 32-bit compilers */
 	z <<= 16;
 	z |= y;
 	t = (_Thread*)z;
-- 
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