iokit/Kernel/IOLib.cpp

238     adjustedSize = size + sizeof(vm_size_t) + sizeof(vm_address_t);
262 	    allocationAddress = (vm_address_t) kalloc(adjustedSize);
266                     + (sizeof(vm_size_t) + sizeof(vm_address_t)))
269             *((vm_size_t *)(address - sizeof(vm_size_t) - sizeof(vm_address_t)))
271             *((vm_address_t *)(address - sizeof(vm_address_t)))
291     vm_address_t	allocationAddress;
299     adjustedSize = size + sizeof(vm_size_t) + sizeof(vm_address_t);
305       	adjustedSize = *((vm_size_t *)( (vm_address_t) address
306                                 - sizeof(vm_address_t) - sizeof(vm_size_t)));
307         allocationAddress = *((vm_address_t *)( (vm_address_t) address
308 				- sizeof(vm_address_t) ));
676     map = IOPageableMapForAddress( (vm_address_t) address);