--- xnu/xnu-517.7.21/iokit/Kernel/IOKitDebug.cpp
+++ xnu/xnu-792.12.6/iokit/Kernel/IOKitDebug.cpp
@@ -1,23 +1,31 @@
 /*
  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * This file contains Original Code and/or Modifications of Original Code 
+ * as defined in and that are subject to the Apple Public Source License 
+ * Version 2.0 (the 'License'). You may not use this file except in 
+ * compliance with the License.  The rights granted to you under the 
+ * License may not be used to create, or enable the creation or 
+ * redistribution of, unlawful or unlicensed copies of an Apple operating 
+ * system, or to circumvent, violate, or enable the circumvention or 
+ * violation of, any terms of an Apple operating system software license 
+ * agreement.
+ *
+ * Please obtain a copy of the License at 
+ * http://www.opensource.apple.com/apsl/ and read it before using this 
+ * file.
+ *
+ * The Original Code and all software distributed under the License are 
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
+ * Please see the License for the specific language governing rights and 
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 /*
  * Copyright (c) 1998 Apple Computer, Inc.  All rights reserved. 
@@ -25,6 +33,8 @@
  * HISTORY
  *
  */
+
+#include <sys/sysctl.h>
 
 #include <IOKit/IOKitDebug.h>
 #include <IOKit/IOLib.h>
@@ -35,18 +45,24 @@
 #include <libkern/c++/OSContainers.h>
 #include <libkern/c++/OSCPPDebug.h>
 
-extern "C" {
-
-SInt64		gIOKitDebug
 #ifdef IOKITDEBUG
-                            = IOKITDEBUG
+#define DEBUG_INIT_VALUE IOKITDEBUG
+#else
+#define DEBUG_INIT_VALUE 0
 #endif
-;
+
+SInt64		gIOKitDebug = DEBUG_INIT_VALUE;
+SYSCTL_QUAD(_debug, OID_AUTO, iokit, CTLFLAG_RW, &gIOKitDebug, "boot_arg io");
+
 
 int 		debug_malloc_size;
 int		debug_iomalloc_size;
+vm_size_t	debug_iomallocpageable_size;
 int 		debug_container_malloc_size;
 // int 		debug_ivars_size; // in OSObject.cpp
+
+extern "C" {
+
 
 void IOPrintPlane( const IORegistryPlane * plane )
 {
@@ -202,6 +218,7 @@
     updateOffset( dict, debug_ivars_size, "Instance allocation" );
     updateOffset( dict, debug_container_malloc_size, "Container allocation" );
     updateOffset( dict, debug_iomalloc_size, "IOMalloc allocation" );
+    updateOffset( dict, debug_iomallocpageable_size, "Pageable allocation" );
 
     OSMetaClass::serializeClassDictionary(dict);