Handling exception using UnhandledExceptionEvent in coreclr

[Liangjia0411]

When I call a C# method from C++ and try to handle exceptions thrown by the C# code using AppDomain.CurrentDomain.UnhandledException, it crashes.

It seems that even if the exception is caught by the UnhandledExceptionEvent, it still propagates further.

How should I resolve this issue? The reason for using UnhandledExceptionEvent to handle exceptions is to maintain compatibility with Mono. In Mono, using mono_unhandled_exception to handle exceptions does not cause a crash.

Environment:

• dotnet 9
• Windows

[huoyaoyuan]

UnhandledException can't handle exception. It can only do necessary logging etc and the application is terminated because of exception.

Exception across interop boundary is very limited. See https://learn.microsoft.com/dotnet/standard/native-interop/exceptions-interoperability

[jkotas]

We have a new proposed API that allows you to "handle" the unhandled exceptions: #101560

cc @VSadov