[Bug] Stack crash failure on Unity 6.1.x IL2CPP

[Kein]

Describe the issue

This might be tightly coupled with this issue:
BepInEx/Il2CppInterop#216

Game in question: https://store.steampowered.com/app/2313700 (free Demo)

Crash log:

Stack overflow.
   at Il2CppInterop.Runtime.Injection.Hooks.GenericMethod_GetMethod_Hook.Hook(Il2CppInterop.Runtime.Runtime.Il2CppGenericMethod*, Boolean)
   at BepInEx.Unity.IL2CPP.IL2CPPChainloader.OnInvokeMethod(IntPtr, IntPtr, IntPtr, IntPtr)
   at Il2CppInterop.Runtime.IL2CPP.il2cpp_runtime_invoke(IntPtr, IntPtr, Void**, IntPtr ByRef)
   at Il2CppSystem.Reflection.MethodInfo.MakeGenericMethod(Il2CppInterop.Runtime.InteropTypes.Arrays.Il2CppReferenceArray`1<Il2CppSystem.Type>)
   at UnityEngine.GameObject+MethodInfoStoreGeneric_AddComponent_Public_T_0`1[[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]..cctor()
   at UnityEngine.GameObject.AddComponent[[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]()
   at UniverseLib.UniversalBehaviour.Setup()
   at UniverseLib.Universe.Init(Single, System.Action, System.Action`2<System.String,UnityEngine.LogType>, UniverseLib.Config.UniverseLibConfig)
   at UnityExplorer.ExplorerCore.Init(UnityExplorer.IExplorerLoader)
   at UnityExplorer.ExplorerBepInPlugin.Init()
   at UnityExplorer.ExplorerBepInPlugin.Load()
   at BepInEx.Unity.IL2CPP.IL2CPPChainloader.LoadPlugin(BepInEx.PluginInfo, System.Reflection.Assembly)
   at BepInEx.Bootstrap.BaseChainloader`1[[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].LoadPlugins(System.Collections.Generic.IList`1<BepInEx.PluginInfo>)
   at BepInEx.Bootstrap.BaseChainloader`1[[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].Execute()
   at BepInEx.Unity.IL2CPP.IL2CPPChainloader.OnInvokeMethod(IntPtr, IntPtr, IntPtr, IntPtr)

Looks like it crashes right after custom type injection and component addition.
I havent tested any other mods, once I do I report back.

[yukieiji]

Since AddComponent isn't functioning, I don't think this is a bug in UE or other mod, so I'm closing this.

[yukieiji]

Since it's shown that UnityEngine.GameObject.AddComponent isn't working. so all mods using it that including the UE won't work.

[Kein]

Yeah, seems like this is Bepin (and Melon) issue not being comaptible with latest 6.x
BepInEx/Il2CppInterop#235

[jim972329667]

There is a way to bypass this error, which is to find the signature of the current version of the function.

[Kein]

@yukieiji
Can you reopen the issue? I'm attaching the new error log as well as new in2cpp interop assemblies with new pattern:

[Debug  :DobbyDetour] Preparing detour from 0x7FFB6A7A92C0 to 0x7FFB073B3D64
[Debug  :DobbyDetour] Prepared detour; Trampoline: 0x7FFB2A7B0020
[Debug  :DobbyDetour] Original: 7FFB6A7A92C0, Trampoline: 7FFB2A7B0020, diff: 3FFF92A0
[Error  :Il2CppInterop] Exception in IL2CPP-to-Managed trampoline, not passing it to il2cpp: System.MissingMethodException: Method not found: 'System.String UnityEngine.Application.get_unityVersion()'.
   at UniverseLib.UI.UniversalUI.LoadBundle()
   at UniverseLib.UI.UniversalUI.Init() in D:\a\UnityExplorer\UnityExplorer\UniverseLib\src\UI\UniversalUI.cs:line 105
   at UniverseLib.Universe.SetupCoroutine()+MoveNext() in D:\a\UnityExplorer\UnityExplorer\UniverseLib\src\Universe.cs:line 132
   at Trampoline_ByteThisUniverseLib.Runtime.Il2Cpp.Il2CppManagedEnumeratorMoveNext(IntPtr , Il2CppMethodInfo* )
[Error  :Il2CppInterop] During invoking native->managed trampoline
Exception: System.MissingMethodException: Method not found: 'UnityEngine.Transform UnityEngine.Transform.get_root()'.
   at UniverseLib.Input.EventSystemHelper.Prefix_EventSystem_SetSelectedGameObject(GameObject __0)
   at DMD<UnityEngine.EventSystems.EventSystem::SetSelectedGameObject>(EventSystem this, GameObject selected, BaseEventData pointer)
   at (il2cpp -> managed) SetSelectedGameObject(IntPtr , IntPtr , IntPtr , Il2CppMethodInfo* )
[Error  :Il2CppInterop] During invoking native->managed trampoline
Exception: System.MissingMethodException: Method not found: 'UnityEngine.Transform UnityEngine.Transform.get_root()'.
   at UniverseLib.Input.EventSystemHelper.Prefix_EventSystem_SetSelectedGameObject(GameObject __0)
   at DMD<UnityEngine.EventSystems.EventSystem::SetSelectedGameObject>(EventSystem this, GameObject selected, BaseEventData pointer)
   at (il2cpp -> managed) SetSelectedGameObject(IntPtr , IntPtr , IntPtr , Il2CppMethodInfo* )

il2cppInterop_6x_pattern.zip

[yukieiji]

No, The issue of Unity methods not being found IS NOT a UE bug.

[breadzh]

There is a way to bypass this error, which is to find the signature of the current version of the function.

@jim972329667 Thank you Jim, this works perfectly, would you please share how did you find out the sig?

I tried to search your sig in IDA, it is a subroutine with 3 params, which is different than the func of GenericMethod::GetMethod desired by BepInEx which takes only 1 parameter of IL2CppGenericMethodInfo*, so how does this work? Why does this 3 params can fit the 1 param func? Thank you in advance