Symbolication for AOT-compiled stack traces on iOS

Package

Sentry.Maui

.NET Flavor

.NET

.NET Version

7.0.102

OS

iOS

SDK Version

3.28.1

Steps to Reproduce

1. Make a new MAUI application
2. Add Sentry.Maui
3. Write code that throws an exception
4. Configure MSBuild with org and project
5. Build in Release mode
6. Deploy to a real iOS device (not the simulator)
7. Run the app and cause the exception to fire

Expected Result

Error in Sentry should include file names and line numbers in the stack trace.

Actual Result

No symbolication occurs.

Event: https://sentry-sdks.sentry.io/issues/3936606932/events/6292f7f7ec3744e6a410e0bd111879ce/?project=5428537

The JSON of the event does not contain any debug_meta information, symbolication is not attempted.

[SamMonoRT]

We possibly can support iOS through Native AOT for apps targeting .NET 8 and later. Assuming this lands:

• Enable support for NativeAOT targeting iOS via opt-in feature dotnet/runtime#80905

If so, this ticket, given its complexity, becomes lower priority. That is, if Mono AOT can be replaced with Native AOT.

And what we could focus on is:

• Support Native AOT on .NET 7+ #2247

We’ll encourage you to try steps for NativeAOT targetting iOS as mentioned in this blog post on any .NET8 Preview 6 or 7 builds and give us feedback - https://devblogs.microsoft.com/dotnet/announcing-dotnet-8-preview-6/#support-for-targeting-ios-platforms-with-nativeaot

[Swatinem]

Well, the stack frame simply has no instruction_addr. The addr_mode references the debug file, and the function_id is there as well. There just isn’t any instruction_addr. Is it possible that this particular platform does not provide any GetILOffset value at runtime?