Hello, guys! I'm facing strange behavior, so I ne...

# multiplatform

[rzhukov]

Hello, guys!

I'm facing strange behavior, so I need help.

Setup.
I have iOS app with two independent KMM libraries, connected to the app with cocoapods as XCFramework. One (my) library is static. The second — dynamic.
I'm trying to manually handle exceptions, occured in one KMM library, so I've set unhandled exception hook.

The strange part.
When exception occurs, I reset std::terminate_handled to the platform default one (I've remembered it on application startup before KN runtime initialization), convert Throwable to NSException and raise it.

I expect that NSException will terminate the app via default platform termination way. But what I see is that terminate_handler from the second KMM library handles it. So I'm observing 5 seconds sleep.
In debug session I checking std::get_tetminate() just before raising NSException and it is what I set before. I was able to debug the place, where that wrong termination handler appears in native code: raised exception starts handling at __cxa_begin_catch. It fetches __cxa_get_globals() and then exception_header. And there comes wrong KN terminate handler.
If I disable second library, everything work as expected.

In another sample app with similar setup everything works good and termination handler doesn't replace default.

How can that be? I don't see that second library sets own termination handler, I see that my termination handler correctly set, but it doesn't work.
I appreciate any suggestion. Thanks!