Update README.md

README.md

@@ -521,6 +521,24 @@ Mind the space at the beginning of each line. If you want to generate a file lik
  ....
 ```
 
+Once you have generated a map file for ntoskrnl.exe, or any other binary you want to link with, you can then use it to resolve external symbols. In the `DemoDrv` project, I reference two external symbols. One being `PiddbCacheTable`, and the other being a win32kfull.sys export.
+
+```cpp
+// this is a demo of resolving non-exported symbols...
+// win32kfull.sys export example...
+extern "C" void NtUserRegisterShellPTPListener();
+extern "C" void* PiDDBCacheTable;
+
+```
+
+These two symbols are simply printed out via DbgPrint. 
+
+```cpp
+// non-exported symbols being resolved by jit linker...
+DbgPrint("> PiDDBCacheTable = 0x%p\n", &PiDDBCacheTable);
+DbgPrint("> win32kfull!NtUserRegisterShellPTPListener = 0x%p\n", &NtUserRegisterShellPTPListener);
+``
+
 ### Usermode Example
 
 # License - BSD 3-Clause