[net8.0-ios] App crashes on ios device when calling static abstract generic interface method

[vyacheslav-volkov]

Description

App crashes on ios device with <UseInterpreter>false</UseInterpreter> flag when calling static abstract generic interface method.

Reproduction Steps

1. Create a new net8.0-ios project
2. Add code:

public interface ITypeChecker
{
    static abstract bool Test<T>();
}

public interface IHandler
{
    bool Test<T>();
}

public class TypeChecker : ITypeChecker
{
    public static bool Test<T>() => true;
}

public class Handler<TChecker> : IHandler where TChecker : ITypeChecker
{
    public bool Test<T>() => TChecker.Test<T>();
}

[Register("AppDelegate")]
public class AppDelegate : UIApplicationDelegate
{
    public override UIWindow? Window { get; set; }

    public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
    {
        var handler = GetHandler();
        handler.Test<int>();
        return true;
    }

    public IHandler GetHandler() => new Handler<TypeChecker>();
}

Expected behavior

No crashes

Actual behavior

Native crash:

=================================================================
	Native Crash Reporting
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

=================================================================
	Native stacktrace:
=================================================================
	0x102c967a4 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c81990 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c64364 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1f05fd2f4 - /usr/lib/system/libsystem_platform.dylib : <redacted>
	0x102c6ace0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102717d80 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102640240 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x1028cfeac - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102c675a0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c14874 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c17594 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102cd5488 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102cd51cc - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1a8a8f2d0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8ea28 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8da5c - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8d6bc - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a87f6884 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : _UIScenePerformActionsWithLifecycleActionMask
	0x1a8b0c858 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89cea70 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce8a0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce470 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce350 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a904d430 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a90e10ac - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion
	0x1a888cdc8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8cc0fe0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89533c8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a895325c - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89527cc - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8952570 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1bb2ae3e4 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2e88ec - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2b1e38 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2e8590 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1ad56f780 - /usr/lib/system/libdispatch.dylib : <redacted>
	0x1ad5472d0 - /usr/lib/system/libdispatch.dylib : <redacted>
	0x1bb2bb34c - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2baf88 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2bd53c - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1a688d154 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a6898dc8 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a6824044 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a68391b8 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a683dda0 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : CFRunLoopRunSpecific
	0x1ddb3b998 - /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices : GSEventRunModal
	0x1a8ad2fd8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8ad2c50 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : UIApplicationMain
	0x102a28bf8 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : xamarin_UIApplicationMain
	0x10275de30 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102a0bb14 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102c675a0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c13a84 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c199a4 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c6c808 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102a33a24 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : xamarin_log
	0x102cd4834 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1c3f93344 - /usr/lib/dyld : <redacted>

=================================================================
	Basic Fault Address Reporting
=================================================================
Memory around native instruction pointer (0x102c6ace0):0x102c6acd0  e8 42 40 79 28 0d 10 37 e0 03 17 aa 4a 7b fd 97  .B@y(..7....J{..
0x102c6ace0  68 02 40 f9 88 14 00 b4 19 00 1b 12 08 01 40 f9  h.@...........@.
0x102c6acf0  17 01 40 f9 00 0b 40 f9 60 0c 00 b4 08 3c 40 39  ..@...@.`....<@9
0x102c6ad00  a8 0c 00 37 e0 03 17 aa d4 81 fd 97 e8 6e 40 f9  ...7.........n@.

=================================================================
	Managed Stacktrace:
=================================================================
	  at <unknown> <0xffffffff>
	  at System.Object:__icall_wrapper_(null) <0x00007>
	  at TestCrash.Handler`1:Test <0x0007f>
	  at TestCrash.AppDelegate:FinishedLaunching <0x00047>
	  at System.Object:runtime_invoke_dynamic <0x00127>
	  at <unknown> <0xffffffff>
	  at UIKit.UIApplication:xamarin_UIApplicationMain <0x00007>
	  at UIKit.UIApplication:UIApplicationMain <0x000cf>
	  at UIKit.UIApplication:Main <0x00107>
	  at Program:<Main>$ <0x0003f>
	  at System.Object:runtime_invoke_dynamic <0x00127>
=================================================================

=================================================================
	Native Crash Reporting
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

An error has occurred in the native fault reporting. Some diagnostic information will be unavailable.

=================================================================
	Native stacktrace:
=================================================================
	0x102c967a4 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c81990 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c64364 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1f05fd2f4 - /usr/lib/system/libsystem_platform.dylib : <redacted>
	0x102c6ace0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102717d80 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102640240 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x1028cfeac - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102c675a0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c14874 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c17594 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102cd5488 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102cd51cc - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1a8a8f2d0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8ea28 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8da5c - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8d6bc - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a87f6884 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : _UIScenePerformActionsWithLifecycleActionMask
	0x1a8b0c858 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89cea70 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce8a0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce470 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce350 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a904d430 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a90e10ac - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion
	0x1a888cdc8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8cc0fe0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89533c8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a895325c - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89527cc - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8952570 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1bb2ae3e4 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2e88ec - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2b1e38 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2e8590 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1ad56f780 - /usr/lib/system/libdispatch.dylib : <redacted>
	0x1ad5472d0 - /usr/lib/system/libdispatch.dylib : <redacted>
	0x1bb2bb34c - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2baf88 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2bd53c - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1a688d154 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a6898dc8 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a6824044 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a68391b8 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a683dda0 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : CFRunLoopRunSpecific
	0x1ddb3b998 - /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices : GSEventRunModal
	0x1a8ad2fd8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8ad2c50 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : UIApplicationMain
	0x102a28bf8 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : xamarin_UIApplicationMain
	0x10275de30 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102a0bb14 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102c675a0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c13a84 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c199a4 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c6c808 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102a33a24 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : xamarin_log
	0x102cd4834 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1c3f93344 - /usr/lib/dyld : <redacted>

Exiting early due to double fault.

Regression?

No response

Known Workarounds

No response

Configuration

NET 8.0 Preview 7

Other information

No response

[kotlarmilos]

I managed to reproduce the issue locally using Mono AOT LLVM configuration.

Test case:

using System;

namespace HelloWorld
{
    public interface ITypeChecker
    {
        static abstract bool Test<T>();
    }

    public interface IHandler
    {
        bool Test<T>();
    }

    public class TypeChecker : ITypeChecker
    {
        public static bool Test<T>() => true;
    }

    public class Handler<TChecker> : IHandler where TChecker : ITypeChecker
    {
        public bool Test<T>() => TChecker.Test<T>();
    }

    internal class Program
    {

        private static void Main(string[] args)
        {
            var handler = GetHandler();
            bool test = handler.Test<int>();
            Console.WriteLine(test);
        }

        public static IHandler GetHandler() => new Handler<TypeChecker>();
    }
}

Stack trace:

* thread #1, name = 'tid_103', queue = 'com.apple.main-thread', stop reason = signal SIGSEGV
  * frame #0: 0x000000010038f8c0 mono-sgen`constrained_gsharedvt_call_setup(mp=0x0000000000000000, cmethod=0x00000001034094c0, klass=0x000000010600f968, this_arg=0x000000016fdfe390, error=0x000000016fdfe3b0) at jit-icalls.c:1367:14
    frame #1: 0x000000010038f604 mono-sgen`mono_gsharedvt_constrained_call(mp=0x0000000000000000, cmethod=0x00000001034094c0, klass=0x000000010600f968, info=0x0000000103409540, deref_args=0x0000000000000000, args=0x0000000000000000) at jit-icalls.c:1464:7
    frame #2: 0x0000000104a681c0 System.Private.CoreLib.dll.dylib`wrapper_managed_to_native_object___icall_wrapper_mono_gsharedvt_constrained_call_intptr_intptr_intptr_intptr_intptr_intptr + 160
    frame #3: 0x00000001008d37c0 HelloWorld.dll.dylib`HelloWorld_Handler_1_TChecker_GSHAREDVT_Test_T_GSHAREDVT(this=0x0000000102001fa8) at Program.cs:25
    frame #4: 0x00000001008d367c HelloWorld.dll.dylib`HelloWorld_Program_Main_string__(param0=<unavailable>) at Program.cs:34
    frame #5: 0x0000000104a623e8 System.Private.CoreLib.dll.dylib`wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 296
    frame #6: 0x00000001002f77a4 mono-sgen`mono_jit_runtime_invoke(method=0x0000000100f0aca0, obj=0x0000000000000000, params=0x000000016fdfe960, exc=0x000000016fdfe7e0, error=0x000000016fdfea38) at mini-runtime.c:3636:3
    frame #7: 0x0000000100250310 mono-sgen`do_runtime_invoke(method=0x0000000100f0aca0, obj=0x0000000000000000, params=0x000000016fdfe960, exc=0x0000000000000000, error=0x000000016fdfea38) at object.c:2542:11
    frame #8: 0x000000010024a0b8 mono-sgen`mono_runtime_invoke_checked(method=0x0000000100f0aca0, obj=0x0000000000000000, params=0x000000016fdfe960, error=0x000000016fdfea38) at object.c:2758:9
    frame #9: 0x0000000100255a0c mono-sgen`do_exec_main_checked(method=0x0000000100f0aca0, args=0x0000000102001f18, error=0x000000016fdfea38) at object.c:4644:3
    frame #10: 0x0000000100253fa0 mono-sgen`mono_runtime_exec_main_checked(method=0x0000000100f0aca0, args=0x0000000102001f18, error=0x000000016fdfea38) at object.c:4741:9
    frame #11: 0x0000000100253ff4 mono-sgen`mono_runtime_run_main_checked(method=0x0000000100f0aca0, argc=1, argv=0x0000000100a06660, error=0x000000016fdfea38) at object.c:4305:9
    frame #12: 0x00000001003af3d4 mono-sgen`mono_jit_exec_internal(domain=0x0000000100a08040, assembly=0x0000000100f0b4d0, argc=1, argv=0x0000000100a06660) at driver.c:1369:13
    frame #13: 0x00000001003af1e8 mono-sgen`mono_jit_exec(domain=0x0000000100a08040, assembly=0x0000000100f0b4d0, argc=1, argv=0x0000000100a06660) at driver.c:1314:7
    frame #14: 0x00000001003b3e98 mono-sgen`main_thread_handler(user_data=0x000000016fdfee30) at driver.c:1444:2
    frame #15: 0x00000001003b2570 mono-sgen`mono_main(argc=3, argv=0x0000000100a06650) at driver.c:2668:3
    frame #16: 0x00000001000be528 mono-sgen`mono_main_with_options(argc=3, argv=0x0000000100a06650) at main.c:36:9
    frame #17: 0x00000001000be4e8 mono-sgen`main(argc=2, argv=0x000000016fdff158) at main.c:88:9
    frame #18: 0x000000018d69bf28 dyld`start + 2236

[kotlarmilos]

@vargaz If cmethod is a static virtual method, the receiver's type is null. In such case, if klass is used instead of the receiver's type, the test case works. I am not sure if the constrained_gsharedvt_call_setup should be called for static virtual methods, or if the handling for such methods is missing.

/cc: @lambdageek

Tagging subscribers to 'os-ios': @steveisok, @akoeplinger, @kotlarmilos
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Description

App crashes on ios device with <UseInterpreter>false</UseInterpreter> flag when calling static abstract generic interface method.

Reproduction Steps

1. Create a new net8.0-ios project
2. Add code:

public interface ITypeChecker
{
    static abstract bool Test<T>();
}

public interface IHandler
{
    bool Test<T>();
}

public class TypeChecker : ITypeChecker
{
    public static bool Test<T>() => true;
}

public class Handler<TChecker> : IHandler where TChecker : ITypeChecker
{
    public bool Test<T>() => TChecker.Test<T>();
}

[Register("AppDelegate")]
public class AppDelegate : UIApplicationDelegate
{
    public override UIWindow? Window { get; set; }

    public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
    {
        var handler = GetHandler();
        handler.Test<int>();
        return true;
    }

    public IHandler GetHandler() => new Handler<TypeChecker>();
}

Expected behavior

No crashes

Actual behavior

Native crash:

=================================================================
	Native Crash Reporting
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

=================================================================
	Native stacktrace:
=================================================================
	0x102c967a4 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c81990 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c64364 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1f05fd2f4 - /usr/lib/system/libsystem_platform.dylib : <redacted>
	0x102c6ace0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102717d80 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102640240 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x1028cfeac - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102c675a0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c14874 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c17594 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102cd5488 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102cd51cc - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1a8a8f2d0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8ea28 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8da5c - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8d6bc - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a87f6884 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : _UIScenePerformActionsWithLifecycleActionMask
	0x1a8b0c858 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89cea70 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce8a0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce470 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce350 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a904d430 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a90e10ac - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion
	0x1a888cdc8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8cc0fe0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89533c8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a895325c - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89527cc - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8952570 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1bb2ae3e4 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2e88ec - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2b1e38 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2e8590 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1ad56f780 - /usr/lib/system/libdispatch.dylib : <redacted>
	0x1ad5472d0 - /usr/lib/system/libdispatch.dylib : <redacted>
	0x1bb2bb34c - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2baf88 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2bd53c - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1a688d154 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a6898dc8 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a6824044 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a68391b8 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a683dda0 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : CFRunLoopRunSpecific
	0x1ddb3b998 - /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices : GSEventRunModal
	0x1a8ad2fd8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8ad2c50 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : UIApplicationMain
	0x102a28bf8 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : xamarin_UIApplicationMain
	0x10275de30 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102a0bb14 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102c675a0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c13a84 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c199a4 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c6c808 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102a33a24 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : xamarin_log
	0x102cd4834 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1c3f93344 - /usr/lib/dyld : <redacted>

=================================================================
	Basic Fault Address Reporting
=================================================================
Memory around native instruction pointer (0x102c6ace0):0x102c6acd0  e8 42 40 79 28 0d 10 37 e0 03 17 aa 4a 7b fd 97  .B@y(..7....J{..
0x102c6ace0  68 02 40 f9 88 14 00 b4 19 00 1b 12 08 01 40 f9  h.@...........@.
0x102c6acf0  17 01 40 f9 00 0b 40 f9 60 0c 00 b4 08 3c 40 39  ..@...@.`....<@9
0x102c6ad00  a8 0c 00 37 e0 03 17 aa d4 81 fd 97 e8 6e 40 f9  ...7.........n@.

=================================================================
	Managed Stacktrace:
=================================================================
	  at <unknown> <0xffffffff>
	  at System.Object:__icall_wrapper_(null) <0x00007>
	  at TestCrash.Handler`1:Test <0x0007f>
	  at TestCrash.AppDelegate:FinishedLaunching <0x00047>
	  at System.Object:runtime_invoke_dynamic <0x00127>
	  at <unknown> <0xffffffff>
	  at UIKit.UIApplication:xamarin_UIApplicationMain <0x00007>
	  at UIKit.UIApplication:UIApplicationMain <0x000cf>
	  at UIKit.UIApplication:Main <0x00107>
	  at Program:<Main>$ <0x0003f>
	  at System.Object:runtime_invoke_dynamic <0x00127>
=================================================================

=================================================================
	Native Crash Reporting
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

An error has occurred in the native fault reporting. Some diagnostic information will be unavailable.

=================================================================
	Native stacktrace:
=================================================================
	0x102c967a4 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c81990 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c64364 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1f05fd2f4 - /usr/lib/system/libsystem_platform.dylib : <redacted>
	0x102c6ace0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102717d80 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102640240 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x1028cfeac - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102c675a0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c14874 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c17594 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102cd5488 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102cd51cc - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1a8a8f2d0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8ea28 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8da5c - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8a8d6bc - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a87f6884 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : _UIScenePerformActionsWithLifecycleActionMask
	0x1a8b0c858 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89cea70 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce8a0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce470 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89ce350 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a904d430 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a90e10ac - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion
	0x1a888cdc8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8cc0fe0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89533c8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a895325c - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a89527cc - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8952570 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1bb2ae3e4 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2e88ec - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2b1e38 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2e8590 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1ad56f780 - /usr/lib/system/libdispatch.dylib : <redacted>
	0x1ad5472d0 - /usr/lib/system/libdispatch.dylib : <redacted>
	0x1bb2bb34c - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2baf88 - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1bb2bd53c - /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices : <redacted>
	0x1a688d154 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a6898dc8 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a6824044 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a68391b8 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
	0x1a683dda0 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : CFRunLoopRunSpecific
	0x1ddb3b998 - /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices : GSEventRunModal
	0x1a8ad2fd8 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : <redacted>
	0x1a8ad2c50 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : UIApplicationMain
	0x102a28bf8 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : xamarin_UIApplicationMain
	0x10275de30 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102a0bb14 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : 
	0x102c675a0 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c13a84 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c199a4 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102c6c808 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x102a33a24 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : xamarin_log
	0x102cd4834 - /private/var/containers/Bundle/Application/17646053-8E61-4B41-BA88-71BCCBDB1947/TestCrash.app/TestCrash : SystemNative_GetDefaultTimeZone
	0x1c3f93344 - /usr/lib/dyld : <redacted>

Exiting early due to double fault.

Regression?

No response

Known Workarounds

No response

Configuration

NET 8.0 Preview 7

Other information

No response

Author:	vyacheslav-volkov
Assignees:	kotlarmilos
Labels:	area-Codegen-AOT-mono, os-ios
Milestone:	-

[SamMonoRT]

/cc @BrzVlad

[kotlarmilos]

After further investigation, it seems that the constrained_gsharedvt_call_setup shouldn't be called if cmethod is a static virtual method. In the AOT compiler, static virtual methods are handled normally.

Assumption is that during the runtime, the call cannot be made through constrained_gsharedvt_call_setup, and the type should be retrieved from vtable of a class.

@vargaz @lambdageek Please let me know if I am on the right track :)

I've opened a draft PR to test the CI.

UPDATE: The mono_gsharedvt_constrained_call JIT icall should handle static virtual methods by using null for the this argument.