Enable IlasmRoundTrip tests for merged tests

eng/Subsets.props

@@ -336,7 +336,8 @@
                              $(CoreClrProjectRoot)tools\r2rdump\R2RDump.csproj;
                              $(CoreClrProjectRoot)tools\dotnet-pgo\dotnet-pgo.csproj;
                              $(CoreClrProjectRoot)tools\aot\ILCompiler\repro\repro.csproj;
-                             $(CoreClrProjectRoot)tools\r2rtest\R2RTest.csproj" Category="clr" Condition="'$(DotNetBuildFromSource)' != 'true'"/>
+                             $(CoreClrProjectRoot)tools\r2rtest\R2RTest.csproj;
+                             $(CoreClrProjectRoot)tools\AssemblyChecker\AssemblyChecker.csproj" Category="clr" Condition="'$(DotNetBuildFromSource)' != 'true'"/>
     <ProjectToBuild Include="$(CoreClrProjectRoot)tools\aot\crossgen2\crossgen2.csproj" Category="clr" />
     <ProjectToBuild Include="$(CoreClrProjectRoot)tools\aot\ILCompiler.Build.Tasks\ILCompiler.Build.Tasks.csproj" Category="clr" Condition="'$(NativeAotSupported)' == 'true'" />
     <ProjectToBuild Include="$(CoreClrProjectRoot)tools\aot\ILCompiler\ILCompiler.csproj" Category="clr" Condition="'$(NativeAotSupported)' == 'true'" />

src/coreclr/tools/AssemblyChecker/AssemblyChecker.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <AssemblyName>AssemblyChecker</AssemblyName>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>$(NetCoreAppToolCurrent)</TargetFramework>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+    <AppendTargetFrameworkToOutputPath Condition="'$(BuildingInsideVisualStudio)' == 'true'">true</AppendTargetFrameworkToOutputPath>
+    <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
+    <EnableDefaultEmbeddedResourceItems>false</EnableDefaultEmbeddedResourceItems>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <OutputPath>$(RuntimeBinDir)\AssemblyChecker</OutputPath>
+    <RunAnalyzers>false</RunAnalyzers>
+  </PropertyGroup>
+</Project>

src/coreclr/tools/AssemblyChecker/Program.cs

@@ -0,0 +1,117 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Text;
+using System.Diagnostics;
+using System.Reflection;
+using System.Reflection.Metadata;
+using System.Reflection.PortableExecutable;
+
+namespace AssemblyChecker
+{
+    /// <summary>
+    /// This is a simple console application that is designed to answer True or False
+    /// questions about whether a given file is a managed assembly or not.
+    /// You can also ask whether or not the assembly is debuggable.
+    /// Return code of 0 indicates the file is a managed assembly.
+    /// Return code of 1 indicates the file is not a managed assembly. No errors will be printed for this one.
+    /// </summary>
+    public class Program
+    {
+        private const string HelpText = @"
+Usage:
+    <filePath>: Check if the file-path is a managed assembly.
+    --is-debug <filePath>: Check if the file-path is a managed assembly that is built with debuggability.
+    --is-exe <filePath>: Check if the file-path is a managed assembly that is an executable.
+";
+
+        static bool IsAssembly(string path)
+        {
+            using var fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+
+            // Try to read CLI metadata from the PE file.
+            using var peReader = new PEReader(fs);
+
+            if (!peReader.HasMetadata)
+            {
+                return false; // File does not have CLI metadata.
+            }
+
+            // Check that file has an assembly manifest.
+            MetadataReader reader = peReader.GetMetadataReader();
+            return reader.IsAssembly;
+        }
+
+        static bool IsDebug(string path)
+        {
+            return
+                Assembly.LoadFrom(path)
+                .GetCustomAttributes(typeof(DebuggableAttribute), false)
+                .OfType<DebuggableAttribute>().Any(x => x.IsJITOptimizerDisabled);
+        }
+
+        static bool IsExe(string path)
+        {
+            using var fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+
+            // Try to read CLI metadata from the PE file.
+            using var peReader = new PEReader(fs);
+
+            if (!peReader.HasMetadata)
+            {
+                return false; // File does not have CLI metadata.
+            }
+
+            return peReader.PEHeaders.IsExe;
+        }
+
+        static int Main(string[] args)
+        {
+            if (args.Length == 0)
+            {
+                Console.WriteLine(HelpText);
+                Console.Error.WriteLine("\nExpected assembly file-path.");
+                return 2;
+            }
+
+            // Help
+            if (args.Contains("-h"))
+            {
+                Console.WriteLine(HelpText);
+                return 0;
+            }
+
+            if (args.Length == 1)
+            {
+                return IsAssembly(args[0]) ? 0 : 1;
+            }
+
+            if (args.Length == 2)
+            {
+                switch (args[0])
+                {
+                    case "--is-debug":
+                        {
+                            return IsDebug(args[1]) ? 0 : 1;
+                        }
+
+                    case "--is-exe":
+                        {
+                            return IsExe(args[1]) ? 0 : 1;
+                        }
+
+                    default:
+                        {
+                            Console.WriteLine(HelpText);
+                            Console.Error.WriteLine("\nInvalid option.");
+                            return 2;
+                        }
+                }
+            }
+
+            Console.WriteLine(HelpText);
+            Console.Error.WriteLine("\nToo many arguments.");
+            return 2;
+        }
+    }
+}

src/tests/Common/CLRTest.Execute.Bash.targets

@@ -381,8 +381,6 @@ else
     LAUNCHER="$_DebuggerFullPath $_DebuggerArgsSeparator $(CLRTestRunFile)"
 fi
 
-$(BashIlrtTestLaunchCmds)
-
 if [ ! -z ${RunCrossGen2+x} ]%3B then
   TakeLock
 fi
@@ -412,8 +410,6 @@ else
     LAUNCHER="$_DebuggerFullPath $_DebuggerArgsSeparator $(CLRTestRunFile)"
 fi
 
-$(BashIlrtTestLaunchCmds)
-
 if [ ! -z ${RunCrossGen2+x} ]%3B then
   TakeLock
 fi

src/tests/Common/CLRTest.Execute.Batch.targets

@@ -318,8 +318,6 @@ IF NOT "%CLRCustomTestLauncher%"=="" (
   set LAUNCHER=%_DebuggerFullPath% $(CLRTestRunFile)
 )
 
-$(BatchIlrtTestLaunchCmds)
-
 if defined RunCrossGen2 (
   call :TakeLock
 )