-extern vm_size_t debug_iomallocpageable_size;
-
-// osfmk/device/iokit_rpc.c
-extern kern_return_t IOMapPages(vm_map_t map, mach_vm_address_t va, mach_vm_address_t pa,
- mach_vm_size_t length, unsigned int mapFlags);
-extern kern_return_t IOUnmapPages(vm_map_t map, mach_vm_address_t va, mach_vm_size_t length);
+#if IOTRACKING
+IOReturn
+IOMemoryMapTracking(IOTrackingUser * tracking, task_t * task,
+ mach_vm_address_t * address, mach_vm_size_t * size);
+#endif /* IOTRACKING */