NativeFileReference regression in .NET 8.0

[b-straub]

Description

A object detection sample project using the ONNX runtime as WASM static library is running well using NET7.0 but fails on NET8.0rc with the following error chain:

``

await createEmscripten(module);
..
mono_download_assets();
...
}).catch(err => {
loaderHelpers.err("Error in mono_download_assets: " + err);
mono_exit(1, err);
throw err;
});

``

The error comes obviously from the inclusion of the ONNX rumtime.

Reproduction Steps

Clone the repository WASMObjectDetector
Run the WASMObjectDetector7 sample
Run the WASMObjectDetector8 sample

Expected behavior

WASMObjectDetector8 sample working as well.

Actual behavior

WASMObjectDetector8 sample -> failing with "Error in mono_download_assets"

Regression?

working on NET7.0

Known Workarounds

none

Configuration

VS Version 17.8.0 Preview 3.0
NET7.0 SDK 7.0.402
NET8.0rc2 SDK 8.0.100-rc.2.23502.2

Other information

No response

Tagging subscribers to 'arch-wasm': @lewing
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Description

A object detection sample project using the ONNX runtime as WASM static library is running well using NET7.0 but fails on NET8.0rc with the following error chain:

``

await createEmscripten(module);
..
mono_download_assets();
...
}).catch(err => {
loaderHelpers.err("Error in mono_download_assets: " + err);
mono_exit(1, err);
throw err;
});

``

The error comes obviously from the inclusion of the ONNX rumtime.

Reproduction Steps

Clone the repository WASMObjectDetector
Run the WASMObjectDetector7 sample
Run the WASMObjectDetector8 sample

Expected behavior

WASMObjectDetector8 sample working as well.

Actual behavior

WASMObjectDetector8 sample -> failing with "Error in mono_download_assets"

Regression?

working on NET7.0

Known Workarounds

none

Configuration

VS Version 17.8.0 Preview 3.0
NET7.0 SDK 7.0.402
NET8.0rc2 SDK 8.0.100-rc.2.23502.2

Other information

No response

Author:	b-straub
Assignees:	-
Labels:	arch-wasm, area-System.Runtime.InteropServices.JavaScript, needs-area-label, os-browser
Milestone:	-

[maraf]

Running the .NET 8 sample (with dotnet-sdk-8.0.100-rc.2.23502.2-win-x64) I'm getting a different error
EDIT: It's the same error

Error
    at Object.ke [as mono_exit] (http://localhost:5028/_framework/dotnet.js:3:19020)
    at Ll.e.onAbort.e.onAbort (http://localhost:5028/_framework/dotnet.runtime.8.0.0-rc.2.23479.6.cfr91rytrt.js:3:214072)
    at abort (http://localhost:5028/_framework/dotnet.native.8.0.0-rc.2.23479.6.gzw26f0zwy.js:856:22)
    at ___cxx_global_var_init (http://localhost:5028/_framework/dotnet.native.8.0.0-rc.2.23479.6.gzw26f0zwy.js:1400:51)
    at __wasm_call_ctors (http://localhost:5028/_framework/dotnet.native.wasm:wasm-function[109]:0x1813d)
    at callRuntimeCallbacks (http://localhost:5028/_framework/dotnet.native.8.0.0-rc.2.23479.6.gzw26f0zwy.js:1238:26)
    at initRuntime (http://localhost:5028/_framework/dotnet.native.8.0.0-rc.2.23479.6.gzw26f0zwy.js:725:3)
    at doRun (http://localhost:5028/_framework/dotnet.native.8.0.0-rc.2.23479.6.gzw26f0zwy.js:7793:5)
    at run (http://localhost:5028/_framework/dotnet.native.8.0.0-rc.2.23479.6.gzw26f0zwy.js:7813:5)
    at runCaller (http://localhost:5028/_framework/dotnet.native.8.0.0-rc.2.23479.6.gzw26f0zwy.js:7756:19)

From dotnet.native.js

  /** @type {function(...*):?} */
  function ___cxx_global_var_init(
  ) {
  err('missing function: __cxx_global_var_init'); abort(-1);
  }

The .NET 7 version works

[b-straub]

after 'dotnet run' or running from VS I get in Edge only a warning, but since there is no "___cxx_global_var_init" warning in NET7 there might be some relation.

same for Firefox:

[maraf]

EDIT: The .NET 7 version works

The .NET 7 app starts, but than the ObjectDetector page fails with

crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
      Unhandled exception rendering component: The type initializer for 'Microsoft.ML.OnnxRuntime.NativeMethods' threw an exception.
System.TypeInitializationException: The type initializer for 'Microsoft.ML.OnnxRuntime.NativeMethods' threw an exception.
 ---> System.DllNotFoundException: onnxruntime
   at Microsoft.ML.OnnxRuntime.NativeMethods..cctor()
   --- End of inner exception stack trace ---
   at Microsoft.ML.OnnxRuntime.SessionOptions..ctor()
   at Compunet.YoloV8.YoloV8..ctor(Byte[] model, YoloV8Metadata metadata, SessionOptions options)
   at Compunet.YoloV8.YoloV8..ctor(ModelSelector selector)
   at WASMObjectDetectorShared.Services.ObjectDetectorService.InitializeAsync() in C:\Development\bugrepro\onnx-nativefileref\WASMObjectDetector\WASMObjectDetectorShared\Services\ObjectDetectorService.cs:line 24
   at WASMObjectDetectorShared.Component.ObjectDetectorComponent.OnInitializedAsync() in C:\Development\bugrepro\onnx-nativefileref\WASMObjectDetector\WASMObjectDetectorShared\Component\ObjectDetectorComponent.razor:line 21
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)

@b-straub Does it work for you? What does the dotnet --info and dotnet workload list outputs for you?

[b-straub]

you need to install the wasm-tools workload in order to run emcc.
For NET7 you should see for "dotnet run -v n"

_CheckEmccIsExpectedVersion:
emcc --version
_WasmCompileNativeFiles:
embuilder.bat build MINIMAL
Compiling native assets with emcc with -O0. This may take a while ...
_WasmLinkDotNet:
Linking for initial memory $(EmccInitialHeapSize)=16777216 bytes. Set this msbuild property to change the valu
e.
Linking with emcc with -O0. This may take a while ...
emcc "@C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Runtime.Mono.browser-wasm\7.0.12\runtimes\browser-w
asm\native\src\emcc-default.rsp" "@C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Runtime.Mono.browser-wa
sm\7.0.12\runtimes\browser-wasm\native\src\emcc-link.rsp" ....

NET 8.0 will compile with Emscripten.3.1.34.Sdk
and indeed a new warning will appear here: warning : undefined symbol: __cxx_global_var_init