diff -r 8528b67f6562 -r 2658d7834c6e hotspot/src/share/vm/runtime/os.cpp
--- a/hotspot/src/share/vm/runtime/os.cpp	Fri May 09 08:34:22 2014 -0700
+++ b/hotspot/src/share/vm/runtime/os.cpp	Fri May 09 16:50:54 2014 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -65,6 +65,8 @@
 
 # include <signal.h>
 
+PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
+
 OSThread*         os::_starting_thread    = NULL;
 address           os::_polling_page       = NULL;
 volatile int32_t* os::_mem_serialize_page = NULL;
@@ -909,9 +911,9 @@
 
     for (int i = 0; env_list[i] != NULL; i++) {
       if (getenv(env_list[i], buffer, len)) {
-        st->print(env_list[i]);
+        st->print("%s", env_list[i]);
         st->print("=");
-        st->print_cr(buffer);
+        st->print_cr("%s", buffer);
       }
     }
   }