[PATCH 1/7] Print NULL for zero address in sys_mmap64

[H.J. Lu]

Hi,

This patch prints NULL for zero address in sys_mmap64 so that
it is consistent with sys_mmap.

H.J.
---
2012-02-02  H.J. Lu  <hongjiu.lu at intel.com>

	* mem.c (sys_mmap64): Print NULL for zero address.

diff --git a/mem.c b/mem.c
index e440e9f..7fdd384 100644
--- a/mem.c
+++ b/mem.c
@@ -352,7 +352,10 @@ sys_mmap64(struct tcb *tcp)
 			return 0;
 #endif
 		/* addr */
-		tprintf("%#lx, ", u_arg[0]);
+		if (!u_arg[0])
+			tprints("NULL, ");
+		else
+			tprintf("%#lx, ", u_arg[0]);
 		/* len */
 		tprintf("%lu, ", u_arg[1]);
 		/* prot */
-- 
1.7.6.5