[release/7.0] [wasm] ManagedToNativeGenerator: Skip unmanaged dlls

NuGet.config

@@ -9,7 +9,7 @@
     <clear />
     <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
     <!--  Begin: Package sources from dotnet-emsdk -->
-    <add key="darc-pub-dotnet-emsdk-2a1a284" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-2a1a284c/nuget/v3/index.json" />
+    <add key="darc-pub-dotnet-emsdk-7fa7119" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-7fa7119c/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-emsdk -->
     <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
     <!--

eng/Version.Details.xml

@@ -48,13 +48,13 @@
       <Uri>https://github.com/dotnet/command-line-api</Uri>
       <Sha>5618b2d243ccdeb5c7e50a298b33b13036b4351b</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NET.Workload.Emscripten.net6.Manifest-7.0.100" Version="7.0.4">
+    <Dependency Name="Microsoft.NET.Workload.Emscripten.net6.Manifest-7.0.100" Version="7.0.5">
       <Uri>https://github.com/dotnet/emsdk</Uri>
-      <Sha>2a1a284cb9e62959ed261bba6cfc678612fc4559</Sha>
+      <Sha>7fa7119c1cdf1290aabb2391c3eee6ed42f8851d</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NET.Workload.Emscripten.net7.Manifest-7.0.100" Version="7.0.4">
+    <Dependency Name="Microsoft.NET.Workload.Emscripten.net7.Manifest-7.0.100" Version="7.0.5">
       <Uri>https://github.com/dotnet/emsdk</Uri>
-      <Sha>2a1a284cb9e62959ed261bba6cfc678612fc4559</Sha>
+      <Sha>7fa7119c1cdf1290aabb2391c3eee6ed42f8851d</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>

eng/Versions.props

@@ -22,8 +22,8 @@
     <UsingToolIbcOptimization>false</UsingToolIbcOptimization>
     <UsingToolXliff>false</UsingToolXliff>
     <LastReleasedStableAssemblyVersion>$(AssemblyVersion)</LastReleasedStableAssemblyVersion>
-    <MicrosoftNETWorkloadEmscriptennet6Manifest70100Version>7.0.4</MicrosoftNETWorkloadEmscriptennet6Manifest70100Version>
-    <MicrosoftNETWorkloadEmscriptennet7Manifest70100Version>7.0.4</MicrosoftNETWorkloadEmscriptennet7Manifest70100Version>
+    <MicrosoftNETWorkloadEmscriptennet6Manifest70100Version>7.0.5</MicrosoftNETWorkloadEmscriptennet6Manifest70100Version>
+    <MicrosoftNETWorkloadEmscriptennet7Manifest70100Version>7.0.5</MicrosoftNETWorkloadEmscriptennet7Manifest70100Version>
   </PropertyGroup>
   <ItemGroup>
     <!-- The bands we want to produce workload manifests for -->

src/tasks/WasmAppBuilder/IcallTableGenerator.cs

@@ -34,7 +34,7 @@ public IcallTableGenerator(Func<string, string> fixupSymbolName, TaskLoggingHelp
     // The runtime icall table should be generated using
     // mono --print-icall-table
     //
-    public IEnumerable<string> Generate(string? runtimeIcallTableFile, string[] assemblies, string? outputPath)
+    public IEnumerable<string> Generate(string? runtimeIcallTableFile, IEnumerable<string> assemblies, string? outputPath)
     {
         _icalls.Clear();
         _signatures.Clear();
@@ -44,9 +44,13 @@ public IEnumerable<string> Generate(string? runtimeIcallTableFile, string[] asse
 
         var resolver = new PathAssemblyResolver(assemblies);
         using var mlc = new MetadataLoadContext(resolver, "System.Private.CoreLib");
-        foreach (var aname in assemblies)
+        foreach (var asmPath in assemblies)
         {
-            var a = mlc.LoadFromAssemblyPath(aname);
+            if (!File.Exists(asmPath))
+                throw new LogAsErrorException($"Cannot find assembly {asmPath}");
+
+            Log.LogMessage(MessageImportance.Low, $"Loading {asmPath} to scan for icalls");
+            var a = mlc.LoadFromAssemblyPath(asmPath);
             foreach (var type in a.GetTypes())
                 ProcessType(type);
         }

src/tasks/WasmAppBuilder/ManagedToNativeGenerator.cs

@@ -1,17 +1,20 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
+using System.IO;
 using System.Linq;
+using System.Reflection.PortableExecutable;
 using System.Text;
 using Microsoft.Build.Framework;
 using Microsoft.Build.Utilities;
 
 public class ManagedToNativeGenerator : Task
 {
     [Required]
-    public string[]? Assemblies { get; set; }
+    public string[] Assemblies { get; set; } = Array.Empty<string>();
 
     public string? RuntimeIcallTableFile { get; set; }
 
@@ -62,12 +65,14 @@ public override bool Execute()
 
     private void ExecuteInternal()
     {
+        List<string> managedAssemblies = FilterOutUnmanagedBinaries(Assemblies);
+
         var pinvoke = new PInvokeTableGenerator(FixupSymbolName, Log);
         var icall = new IcallTableGenerator(FixupSymbolName, Log);
 
         IEnumerable<string> cookies = Enumerable.Concat(
-            pinvoke.Generate(PInvokeModules, Assemblies!, PInvokeOutputPath!),
-            icall.Generate(RuntimeIcallTableFile, Assemblies!, IcallOutputPath)
+            pinvoke.Generate(PInvokeModules, managedAssemblies, PInvokeOutputPath!),
+            icall.Generate(RuntimeIcallTableFile, managedAssemblies, IcallOutputPath)
         );
 
         var m2n = new InterpToNativeGenerator(Log);
@@ -110,4 +115,43 @@ public string FixupSymbolName(string name)
         _symbolNameFixups[name] = fixedName;
         return fixedName;
     }
+
+    private List<string> FilterOutUnmanagedBinaries(string[] assemblies)
+    {
+        List<string> managedAssemblies = new(assemblies.Length);
+        foreach (string asmPath in Assemblies)
+        {
+            if (!File.Exists(asmPath))
+                throw new LogAsErrorException($"Cannot find assembly {asmPath}");
+
+            try
+            {
+                if (!IsManagedAssembly(asmPath))
+                {
+                    Log.LogMessage(MessageImportance.Low, $"Skipping unmanaged {asmPath}.");
+                    continue;
+                }
+            }
+            catch (Exception ex)
+            {
+                Log.LogMessage(MessageImportance.Low, $"Failed to read assembly {asmPath}: {ex}");
+                throw new LogAsErrorException($"Failed to read assembly {asmPath}: {ex.Message}");
+            }
+
+            managedAssemblies.Add(asmPath);
+        }
+
+        return managedAssemblies;
+    }
+
+    private static bool IsManagedAssembly(string filePath)
+    {
+        if (!File.Exists(filePath))
+            return false;
+
+        using FileStream fileStream = File.OpenRead(filePath);
+        using PEReader reader = new(fileStream, PEStreamOptions.Default);
+        return reader.HasMetadata;
+    }
+
 }

src/tasks/WasmAppBuilder/PInvokeTableGenerator.cs

@@ -24,7 +24,7 @@ public PInvokeTableGenerator(Func<string, string> fixupSymbolName, TaskLoggingHe
         _fixupSymbolName = fixupSymbolName;
     }
 
-    public IEnumerable<string> Generate(string[] pinvokeModules, string[] assemblies, string outputPath)
+    public IEnumerable<string> Generate(string[] pinvokeModules, IEnumerable<string> assemblies, string outputPath)
     {
         var modules = new Dictionary<string, string>();
         foreach (var module in pinvokeModules)
@@ -37,9 +37,14 @@ public IEnumerable<string> Generate(string[] pinvokeModules, string[] assemblies
 
         var resolver = new PathAssemblyResolver(assemblies);
         using var mlc = new MetadataLoadContext(resolver, "System.Private.CoreLib");
-        foreach (var aname in assemblies)
+
+        foreach (var asmPath in assemblies)
         {
-            var a = mlc.LoadFromAssemblyPath(aname);
+            if (!File.Exists(asmPath))
+                throw new LogAsErrorException($"Cannot find assembly {asmPath}");
+
+            Log.LogMessage(MessageImportance.Low, $"Loading {asmPath} to scan for pinvokes");
+            var a = mlc.LoadFromAssemblyPath(asmPath);
             foreach (var type in a.GetTypes())
                 CollectPInvokes(pinvokes, callbacks, signatures, type);
         }