Crash when a c++ exception is thrown after a module was unloaded

[Sardelka9515]

In the NativeAOT compiled dll, .NET runtime registers a vectored exception handler with AddVectoredExceptionHandler, the handler is not unregistered when the dll is unloaded. Subsequent calls to ntdll.dll!RtlpCallVectoredHandlers(), which triggered by win32 exception dispatch, will fall into the handler in the unloaded module, causing an access violation.

Solution:

Hook AddVectoredExceptionHandler to intercept registered handlers and unregistered them with RemoveVectoredExceptionHandler right after the dll was unloaded.