--- xnu/xnu-8792.81.2/libkern/c++/OSObject.cpp
+++ xnu/xnu-8019.41.5/libkern/c++/OSObject.cpp
@@ -280,17 +280,6 @@
 	return ok;
 }
 
-/*
- * Ignore -Wxnu-typed-allocators for the operator new/delete implementations
- */
-__typed_allocators_ignore_push
-
-/*
- * Given that all OSObjects have been transitioned to use
- * OSObject_typed_operator_new/OSObject_typed_operator_delete, this should
- * only be called from kexts that havent recompiled to use the new
- * definitions.
- */
 void *
 OSObject::operator new(size_t size)
 {
@@ -300,8 +289,8 @@
 	}
 #endif
 
-	void *mem = kheap_alloc(KHEAP_DEFAULT, size,
-	    Z_VM_TAG_BT(Z_WAITOK_ZERO, VM_KERN_MEMORY_LIBKERN));
+	void *mem = kheap_alloc_tag_bt(KHEAP_DEFAULT, size,
+	    (zalloc_flags_t) (Z_WAITOK | Z_ZERO), VM_KERN_MEMORY_LIBKERN);
 	assert(mem);
 	OSIVAR_ACCUMSIZE(size);
 
@@ -332,10 +321,11 @@
 		 * kalloc_type_views generated at some external callsites
 		 * many not have been processed during boot.
 		 */
-		mem = kalloc_type_impl_external(ktv, Z_WAITOK_ZERO);
+		mem = kalloc_type_impl_external(ktv, (zalloc_flags_t)
+		    (Z_WAITOK | Z_ZERO));
 	} else {
-		mem = kheap_alloc(KHEAP_DEFAULT, size,
-		    Z_VM_TAG_BT(Z_WAITOK_ZERO, VM_KERN_MEMORY_LIBKERN));
+		mem = kheap_alloc_tag_bt(KHEAP_DEFAULT, size,
+		    (zalloc_flags_t) (Z_WAITOK | Z_ZERO), VM_KERN_MEMORY_LIBKERN);
 	}
 	assert(mem);
 	OSIVAR_ACCUMSIZE(size);
@@ -356,7 +346,7 @@
 	}
 #endif
 
-	kheap_free(KHEAP_DEFAULT, mem, size);
+	kern_os_kfree(mem, size);
 	OSIVAR_ACCUMSIZE(-size);
 }
 
@@ -377,12 +367,48 @@
 	if (size <= kalloc_type_get_size(ktv->kt_size)) {
 		kern_os_typed_free(ktv, mem, size);
 	} else {
-		kheap_free(KHEAP_DEFAULT, mem, size);
+		kern_os_kfree(mem, size);
 	}
 	OSIVAR_ACCUMSIZE(-size);
 }
 
-__typed_allocators_ignore_pop
+extern "C" void *
+OSObject_operator_new_external(size_t size);
+void *
+OSObject_operator_new_external(size_t size)
+{
+  #if IOTRACKING
+	if (kIOTracking & gIOKitDebug) {
+		return OSMetaClass::trackedNew(size);
+	}
+#endif
+
+	void * mem = kheap_alloc_tag_bt(KHEAP_KEXT, size,
+	    (zalloc_flags_t) (Z_WAITOK | Z_ZERO), VM_KERN_MEMORY_LIBKERN);
+	assert(mem);
+	OSIVAR_ACCUMSIZE(size);
+
+	return (void *) mem;
+}
+
+extern "C" void
+OSObject_operator_delete_external(void * mem, size_t size);
+void
+OSObject_operator_delete_external(void * mem, size_t size)
+{
+	if (!mem) {
+		return;
+	}
+
+#if IOTRACKING
+	if (kIOTracking & gIOKitDebug) {
+		return OSMetaClass::trackedDelete(mem, size);
+	}
+#endif
+
+	kheap_free(KHEAP_KEXT, mem, size);
+	OSIVAR_ACCUMSIZE(-size);
+}
 
 bool
 OSObject::init()