[infra] Enable trimming on Helix for Apple mobile

eng/pipelines/extra-platforms/runtime-extra-platforms-ioslike.yml

@@ -35,7 +35,11 @@ jobs:
       testGroup: innerloop
       nameSuffix: AllSubsets_Mono
       isExtraPlatforms: ${{ parameters.isExtraPlatformsBuild }}
-      buildArgs: -s mono+libs+libs.tests -c $(_BuildConfig) /p:ArchiveTests=true /p:DevTeamProvisioning=- /p:RunAOTCompilation=true $(_runSmokeTestsOnlyArg) /p:BuildTestsOnHelix=true /p:EnableAdditionalTimezoneChecks=true /p:UsePortableRuntimePack=true /p:BuildDarwinFrameworks=true /p:IsManualOrRollingBuild=true
+      # Don't trim tests on rolling builds
+      ${{ if eq(variables['isRollingBuild'], true) }}:
+        buildArgs: -s mono+libs+libs.tests -c $(_BuildConfig) /p:ArchiveTests=true /p:DevTeamProvisioning=- /p:RunAOTCompilation=true $(_runSmokeTestsOnlyArg) /p:BuildTestsOnHelix=true /p:EnableAdditionalTimezoneChecks=true /p:UsePortableRuntimePack=true /p:BuildDarwinFrameworks=true /p:IsManualOrRollingBuild=true /p:EnableAggressiveTrimming=false
+      ${{ else }}:
+        buildArgs: -s mono+libs+libs.tests -c $(_BuildConfig) /p:ArchiveTests=true /p:DevTeamProvisioning=- /p:RunAOTCompilation=true $(_runSmokeTestsOnlyArg) /p:BuildTestsOnHelix=true /p:EnableAdditionalTimezoneChecks=true /p:UsePortableRuntimePack=true /p:BuildDarwinFrameworks=true /p:IsManualOrRollingBuild=true /p:EnableAggressiveTrimming=true
       timeoutInMinutes: 480
       # extra steps, run tests
       postBuildSteps:

eng/pipelines/runtime.yml

@@ -1009,7 +1009,7 @@ extends:
           jobParameters:
             testGroup: innerloop
             nameSuffix: AllSubsets_Mono
-            buildArgs: -s mono+libs+libs.tests+host+packs -c $(_BuildConfig) /p:ArchiveTests=true /p:DevTeamProvisioning=- /p:RunAOTCompilation=true /p:RunSmokeTestsOnly=true /p:BuildTestsOnHelix=true /p:EnableAdditionalTimezoneChecks=true /p:UsePortableRuntimePack=true /p:BuildDarwinFrameworks=true
+            buildArgs: -s mono+libs+libs.tests+host+packs -c $(_BuildConfig) /p:ArchiveTests=true /p:DevTeamProvisioning=- /p:RunAOTCompilation=true /p:RunSmokeTestsOnly=true /p:BuildTestsOnHelix=true /p:EnableAdditionalTimezoneChecks=true /p:UsePortableRuntimePack=true /p:BuildDarwinFrameworks=true /p:EnableAggressiveTrimming=true
             timeoutInMinutes: 480
             condition: >-
               or(

eng/testing/tests.ioslike.targets

@@ -16,7 +16,7 @@
     <!-- running aot-helix tests locally, so we can test with the same project file as CI -->
     <_AOTBuildCommand Condition="'$(ContinuousIntegrationBuild)' != 'true'">$(_AOTBuildCommand) /p:RuntimeSrcDir=$(RepoRoot) /p:RuntimeConfig=$(Configuration)</_AOTBuildCommand>
     <!-- The command below sets default properties for runtime and library tests -->
-    <_AOTBuildCommand>$(_AOTBuildCommand) /p:XHARNESS_EXECUTION_DIR=&quot;$XHARNESS_EXECUTION_DIR&quot; /p:RunAOTCompilation=$(RunAOTCompilation) /p:UseNativeAOTRuntime=$(UseNativeAOTRuntime) /p:TargetOS=$(TargetOS) /p:TargetArchitecture=$(TargetArchitecture) /p:MonoForceInterpreter=$(MonoForceInterpreter) /p:MonoEnableLLVM=true /p:DevTeamProvisioning=$(DevTeamProvisioning) /p:UsePortableRuntimePack=true /p:Configuration=$(Configuration)</_AOTBuildCommand>
+    <_AOTBuildCommand>$(_AOTBuildCommand) /p:XHARNESS_EXECUTION_DIR=&quot;$XHARNESS_EXECUTION_DIR&quot; /p:RunAOTCompilation=$(RunAOTCompilation) /p:UseNativeAOTRuntime=$(UseNativeAOTRuntime) /p:TargetOS=$(TargetOS) /p:TargetArchitecture=$(TargetArchitecture) /p:MonoForceInterpreter=$(MonoForceInterpreter) /p:MonoEnableLLVM=true /p:DevTeamProvisioning=$(DevTeamProvisioning) /p:UsePortableRuntimePack=true /p:Configuration=$(Configuration) /p:EnableAggressiveTrimming=$(EnableAggressiveTrimming)</_AOTBuildCommand>
     <_AOTBuildCommand Condition="'$(NativeLib)' != ''">$(_AOTBuildCommand) /p:NativeLib=$(NativeLib) /p:BundlesResources=$(BundlesResources) /p:ForceLibraryModeGenerateAppBundle=$(ForceLibraryModeGenerateAppBundle)</_AOTBuildCommand>
     <_AOTBuildCommand>$(_AOTBuildCommand) </_AOTBuildCommand>
 
@@ -46,11 +46,11 @@
 
   <PropertyGroup>
     <AppleBuildDependsOn>PrepareForAppleBuildApp;$(AppleBuildDependsOn);_CopyTestArchive</AppleBuildDependsOn>
-  
+
     <BundleTestAppleAppDependsOn Condition="'$(BuildTestsOn)' == 'local'">AppleBuild</BundleTestAppleAppDependsOn>
     <BundleTestAppleAppDependsOn Condition="'$(BuildTestsOnHelix)' == 'true'">$(BundleTestAppleAppDependsOn);_BundleAOTTestAppleAppForHelix;_CopyTestArchive</BundleTestAppleAppDependsOn>
   </PropertyGroup>
-  
+
   <Target Name="BundleTestAppleApp" DependsOnTargets="$(BundleTestAppleAppDependsOn)" />
 
   <UsingTask Condition="'$(BuildTestsOnHelix)' == 'true'"
@@ -61,7 +61,7 @@
     <PropertyGroup>
       <AppBundlePath>$(BundleDir)publish</AppBundlePath>
     </PropertyGroup>
-    
+
     <PropertyGroup>
       <_MainAssemblyPath Condition="'%(AppleAssembliesToBundle.FileName)' == $(AssemblyName) and '%(AppleAssembliesToBundle.Extension)' == '.dll'">%(AppleAssembliesToBundle.Identity)</_MainAssemblyPath>
       <RuntimeConfigFilePath>$([System.IO.Path]::ChangeExtension($(_MainAssemblyPath), '.runtimeconfig.json'))</RuntimeConfigFilePath>
@@ -76,6 +76,8 @@
       <BundleFiles Include="$(MonoProjectRoot)\msbuild\apple\data\*" TargetDir="publish" />
       <ExtraFiles Condition="'%(AppleAssembliesToBundle._IsNative)' == 'true'"
                    Include="@(AppleAssembliesToBundle)"          TargetDir="extraFiles\%(AppleAssembliesToBundle.RecursiveDir)" />
+      <ExtraFiles Condition="Exists(%(TrimmerRootDescriptor.Identity))"
+                   Include="@(TrimmerRootDescriptor)"            TargetDir="extraFiles" />
     </ItemGroup>
 
     <ItemGroup Condition="'$(UseNativeAOTRuntime)' == 'true' and '$(HybridGlobalization)' == 'false'" >
@@ -104,41 +106,62 @@
 
       <_RuntimePackFiles Include="$(MicrosoftNetCoreAppRuntimePackRidLibTfmDir)**\*.*" />
       <_RuntimePackFiles Include="$(MicrosoftNetCoreAppRuntimePackNativeDir)*.*" />
-      
+
       <_UnusedRuntimePackFiles Include="@(_PublishBundleFiles)" Exclude="@(_RuntimePackFiles->'$(AppBundlePath)/%(FileName)%(Extension)')" />
       <_UsedRuntimePackFiles Include="@(_PublishBundleFiles)" Exclude="@(_UnusedRuntimePackFiles)" />
-      
+
       <_RuntimePackFilesToDelete Include="@(_RuntimePackFiles->'$(AppBundlePath)/%(FileName)%(Extension)')" />
+      <!-- ILLink properties -->
+      <AppleReferenceSharedPathFiles Include="%(ReferencePath.Identity)" Condition="Exists('@(ReferencePath->'$(LibrariesSharedFrameworkBinArtifactsPath)%(FileName)%(Extension)')')" />
+      <ReferenceExtraPathFiles Include="%(ReferencePath.Identity)" Condition="!Exists('@(ReferencePath->'$(LibrariesSharedFrameworkBinArtifactsPath)%(FileName)%(Extension)')')" />
     </ItemGroup>
 
     <!-- Remove the runtime pack parts from the self contained app.  We'll restore on helix -->
     <Delete Condition="'$(UsePortableRuntimePack)' == 'true'" Files="@(_RuntimePackFilesToDelete)" />
+    <!-- Copy ILLink.Substitutions files -->
+    <Copy SourceFiles="%(ReferenceExtraPathFiles.Identity)" DestinationFolder="$(BundleDir)\extraFiles" />
 
     <!-- To recreate the original project on helix, we need to set the apple properties also, same as the
          library test project. Eg. $(InvariantGlobalization) -->
     <ItemGroup>
-      <_ApplePropertyNames Include="InvariantGlobalization" />
-      <_ApplePropertyNames Include="HybridGlobalization" />
+      <!-- Configuration properties -->
       <_ApplePropertyNames Include="AssemblyName" />
-      <_ApplePropertyNames Include="MonoEnableLLVM" />
+      <_ApplePropertyNames Include="IncludesTestRunner" />
       <_ApplePropertyNames Include="MainLibraryFileName" />
+      <_ApplePropertyNames Include="MonoEnableLLVM" />
+      <_ApplePropertyNames Include="ShouldILStrip" />
       <_ApplePropertyNames Include="UseConsoleUITemplate" />
       <_ApplePropertyNames Include="UseRuntimeComponents" />
-      <_ApplePropertyNames Include="IncludesTestRunner" />
-      <_ApplePropertyNames Include="ShouldILStrip" />
+      <_ApplePropertyNames Include="_NetCoreAppToolCurrent" />
+
+      <!-- Globalization properties -->
+      <_ApplePropertyNames Include="HybridGlobalization" />
+      <_ApplePropertyNames Include="InvariantGlobalization" />
+
+      <_AppleUsedRuntimePackFiles
+                         Include="@(_UsedRuntimePackFiles->'%(FileName)%(Extension)')"
+                         RemoveMetadata="_IsNative;TargetDir" />
 
       <_ApplePropertiesToPass
-        Include="$(%(_ApplePropertyNames.Identity))"
-        Name="%(_ApplePropertyNames.Identity)"
-        ConditionToUse__="%(_ApplePropertyNames.ConditionToUse__)" />
-
-      <_AppleUsedRuntimePackFiles 
-        Include="@(_UsedRuntimePackFiles->'%(FileName)%(Extension)')" 
-        RemoveMetadata="_IsNative;TargetDir" />
-
+                         Include="$(%(_ApplePropertyNames.Identity))"
+                         Name="%(_ApplePropertyNames.Identity)"
+                         ConditionToUse__="%(_ApplePropertyNames.ConditionToUse__)" />
+
       <_AppleItemsToPass Include="@(_AppleUsedRuntimePackFiles)"
                          OriginalItemName__="_AppleUsedRuntimePackFiles" />
 
+      <_AppleItemsToPass Include="@(AppleReferenceSharedPathFiles->'%(FileName)%(Extension)')"
+                         OriginalItemName__="AppleReferenceSharedPathFiles" />
+
+      <_AppleItemsToPass Include="@(ReferenceExtraPathFiles->'%(FileName)%(Extension)')"
+                         OriginalItemName__="AppleReferenceExtraPathFiles" />
+
+      <_AppleItemsToPass Include="@(RuntimeHostConfigurationOption)"
+                         OriginalItemName__="_AppleUsedRuntimeHostConfigurationOption" />
+
+      <_AppleItemsToPass Include="@(TrimmerRootAssembly)"
+                         OriginalItemName__="TrimmerRootAssembly" />
+
       <!-- Example of passing items to the project
 
           <_AppleItemsToPass Include="@(BundleFiles)" OriginalItemName__="BundleFiles" ConditionToUse__="'$(Foo)' != 'true'" />
@@ -164,7 +187,7 @@
       <IncludesTestRunner Condition="'$(IncludesTestRunner)' == ''">true</IncludesTestRunner>
       <Optimized Condition="'$(Configuration)' == 'Release'">true</Optimized>
       <MainLibraryFileName Condition="'$(MainLibraryFileName)' == '' and '$(IsRuntimeTests)' != 'true' and '$(IncludesTestRunner)' == 'true'">AppleTestRunner.dll</MainLibraryFileName>
-    
+
       <AppleBuildDir>$(PublishDir)</AppleBuildDir>
       <AppleBundleDir>$(BundleDir)</AppleBundleDir>
     </PropertyGroup>
@@ -181,7 +204,7 @@
         <_InternalForceInterpret>true</_InternalForceInterpret>
         <_IsNative>true</_IsNative>
       </AppleAssembliesToBundle>
-      
+
       <_PublishAssemblies Include="$(PublishDir)\**\*.dll" Exclude="$(PublishDir)\**\*.resources.dll" />
       <_SatelliteAssemblies Include="$(PublishDir)\**\*.resources.dll" />
 
@@ -212,4 +235,4 @@
     <RemoveDir Condition="'$(NeedsToBuildAppsOnHelixLocal)' != 'true'" Directories="$(OutDir)" />
   </Target>
 
-</Project>
+</Project>

eng/testing/tests.mobile.targets

@@ -24,15 +24,12 @@
     <DotnetPgoToolPath>$([MSBuild]::NormalizePath('$(DotnetPgoToolDir)', 'dotnet-pgo'))</DotnetPgoToolPath>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(EnableAggressiveTrimming)' == 'true' or '$(EnableSoftTrimming)' == 'true'">
+  <!-- When tests are built on Helix, we don't want to invoke ILLink on build machines -->
+  <PropertyGroup Condition="'$(EnableAggressiveTrimming)' == 'true' and '$(BuildTestsOnHelix)' != 'true'">
     <PublishTrimmed>true</PublishTrimmed>
     <!-- Suppress trimming warnings as these are tests -->
     <SuppressTrimAnalysisWarnings>true</SuppressTrimAnalysisWarnings>
     <NoWarn>$(NoWarn);IL2103;IL2105;IL2025;IL2111</NoWarn>
-    <!-- Warns about missing Xamarin.iOS.dll -->
-    <NoWarn Condition="'$(EnableSoftTrimming)' == 'true'">$(NoWarn);IL2035</NoWarn>
-    <!-- https://github.com/dotnet/sdk/issues/18581 tracks needing to set 2 properties to disable warnings. -->
-    <EnableTrimAnalyzer>false</EnableTrimAnalyzer>
 
     <!-- Reduce library test app size by trimming framework library features  -->
     <DebuggerSupport Condition="'$(DebuggerSupport)' == '' and '$(Configuration)' != 'Debug'">false</DebuggerSupport>
@@ -93,10 +90,9 @@
 
   <!-- This .targets file is also imported by the runtime Trimming tests, and we want to be able to manually configure trimming in them so this
   should be considered if we ever want to change the Condition of the ConfigureTrimming target -->
-  <Target Name="ConfigureTrimming" Condition="('$(EnableAggressiveTrimming)' == 'true' or '$(EnableSoftTrimming)' == 'true') And '$(SkipConfigureTrimming)' != 'true'" AfterTargets="AddTestRunnersToPublishedFiles">
+  <Target Name="ConfigureTrimming" Condition="'$(EnableAggressiveTrimming)' == 'true' And '$(SkipConfigureTrimming)' != 'true'" AfterTargets="AddTestRunnersToPublishedFiles">
     <PropertyGroup>
-      <TrimMode Condition="'$(EnableAggressiveTrimming)' == 'true'">link</TrimMode>
-      <TrimMode Condition="'$(EnableSoftTrimming)' == 'true'">copyused</TrimMode>
+      <TrimMode>link</TrimMode>
     </PropertyGroup>
 
     <ItemGroup>
@@ -107,24 +103,11 @@
            TrimMode="" is needed so the root assemblies are correctly identified -->
       <ResolvedFileToPublish TrimMode="" Condition="'%(FileName)' == '$(AssemblyName)'" />
 
-      <!-- TODO: find out why these assemblies aren't copied by copyused even though they're referenced -->
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.ComponentModel.EventBasedAsync'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.Diagnostics.FileVersionInfo'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.Drawing.Primitives'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.IO.Pipelines'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.Memory'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.Net.WebHeaderCollection'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.Runtime.Serialization.Formatters'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.Security.AccessControl'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.Security.Claims'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.Security.Permissions'" />
-      <ResolvedFileToPublish TrimMode="Copy" Condition="'$(EnableSoftTrimming)' == 'true' and '%(FileName)' == 'System.Transactions.Local'" />
-
       <!-- Even though we are trimming the test runner assembly, we want it to be treated
            as a root -->
       <TrimmerRootAssembly
           Condition="$([System.String]::Copy('%(ResolvedFileToPublish.FileName)%(ResolvedFileToPublish.Extension)').EndsWith('TestRunner.dll'))"
-          Include="%(ResolvedFileToPublish.FullPath)" />
+          Include="%(ResolvedFileToPublish.FileName)" />
     </ItemGroup>
 
     <ItemGroup>

src/libraries/Common/tests/TestUtilities/System/PlatformDetection.cs

@@ -283,7 +283,7 @@ public static bool IsMetadataTokenSupported
         public static bool UsesMobileAppleCrypto => IsMacCatalyst || IsiOS || IstvOS;
 
         // Changed to `true` when trimming
-        public static bool IsBuiltWithAggressiveTrimming => IsNativeAot;
+        public static bool IsBuiltWithAggressiveTrimming => IsNativeAot || IsAppleMobile;
         public static bool IsNotBuiltWithAggressiveTrimming => !IsBuiltWithAggressiveTrimming;
         public static bool IsTrimmedWithILLink => IsBuiltWithAggressiveTrimming && !IsNativeAot;
 

src/libraries/Microsoft.Extensions.Configuration.Binder/tests/Common/ConfigurationBinderTests.cs

@@ -2119,6 +2119,7 @@ public void ComplexObj_As_Enumerable_Element()
 
 #if !BUILDING_SOURCE_GENERATOR_TESTS
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotBrowser))]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/91923", typeof(PlatformDetection), nameof(PlatformDetection.IsMonoRuntime), nameof(PlatformDetection.IsBuiltWithAggressiveTrimming), nameof(PlatformDetection.IsAppleMobile))]
         public void TraceSwitchTest()
         {
             var dic = new Dictionary<string, string>
@@ -2148,6 +2149,7 @@ private void ValidateGeolocation(IGeolocation location)
         [Fact]
 #if !BUILDING_SOURCE_GENERATOR_TESTS
         [ActiveIssue("Investigate Build browser-wasm linux Release LibraryTests_EAT CI failure for reflection impl", TestPlatforms.Browser)]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/91923", typeof(PlatformDetection), nameof(PlatformDetection.IsMonoRuntime), nameof(PlatformDetection.IsBuiltWithAggressiveTrimming), nameof(PlatformDetection.IsAppleMobile))]
 #endif
         public void TestGraphWithUnsupportedMember()
         {

src/libraries/Microsoft.VisualBasic.Core/tests/NewLateBindingTests.cs

@@ -96,6 +96,7 @@ public static IEnumerable<object[]> LateCall_OptionalValues_Data()
 
         [ConditionalTheory(typeof(PlatformDetection), nameof(PlatformDetection.IsReflectionEmitSupported))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/51834", typeof(PlatformDetection), nameof(PlatformDetection.IsBuiltWithAggressiveTrimming), nameof(PlatformDetection.IsBrowser))]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/51834", typeof(PlatformDetection), nameof(PlatformDetection.IsMonoRuntime), nameof(PlatformDetection.IsBuiltWithAggressiveTrimming), nameof(PlatformDetection.IsAppleMobile))]
         [MemberData(nameof(LateCall_OptionalValues_Data))]
         public void LateCall_OptionalValues(string memberName, object[] arguments, Type[] typeArguments, string expectedValue)
         {

src/libraries/System.Configuration.ConfigurationManager/tests/ILLink.Descriptors.xml

@@ -0,0 +1,6 @@
+<linker>
+  <assembly fullname="System" />
+  <assembly fullname="System.Private.CoreLib" />
+  <assembly fullname="System.Configuration" />
+  <assembly fullname="System.Configuration.ConfigurationManager" />
+</linker>

src/libraries/System.Configuration.ConfigurationManager/tests/System.Configuration.ConfigurationManager.Tests.csproj

@@ -97,6 +97,7 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\src\System.Configuration.ConfigurationManager.csproj" />
+    <TrimmerRootDescriptor Include="$(MSBuildThisFileDirectory)ILLink.Descriptors.xml" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'">
     <Reference Include="System.Configuration" />

src/libraries/System.Data.Common/tests/ILLink.Descriptors.xml

@@ -0,0 +1,3 @@
+<linker>
+  <assembly fullname="System.Data" />
+</linker>

src/libraries/System.Data.Common/tests/System.Data.Common.Tests.csproj

@@ -123,5 +123,6 @@
   <ItemGroup>
     <PackageReference Include="System.Data.Common.TestData" Version="$(SystemDataCommonTestDataVersion)" />
     <PackageReference Include="System.Data.SqlClient" Version="$(SystemDataSqlClientVersion)" />
+    <TrimmerRootDescriptor Include="$(MSBuildThisFileDirectory)ILLink.Descriptors.xml" />
   </ItemGroup>
 </Project>

src/libraries/System.Data.Common/tests/System/Data/XmlDataReaderTest.cs

@@ -36,6 +36,7 @@ public class XmlDataReaderTest
     {
         [Fact]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/51369", typeof(PlatformDetection), nameof(PlatformDetection.IsBuiltWithAggressiveTrimming), nameof(PlatformDetection.IsBrowser))]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/51369", typeof(PlatformDetection), nameof(PlatformDetection.IsMonoRuntime), nameof(PlatformDetection.IsBuiltWithAggressiveTrimming), nameof(PlatformDetection.IsAppleMobile))]
         public void XmlLoadTest()
         {
             var ds = new DataSet();

src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.Tests/ILLink.Descriptors.xml

@@ -0,0 +1,3 @@
+<linker>
+  <assembly fullname="System.Diagnostics.FileVersionInfo.TestAssembly" />
+</linker>

src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.Tests/System.Diagnostics.FileVersionInfo.Tests.csproj

@@ -52,5 +52,6 @@
     <!-- R2R testing does not tolerate the combination of a regular project reference and a content reference. -->
     <!-- This is a bug in the SDK tracked here: https://github.com/dotnet/sdk/issues/30718 -->
     <PublishReadyToRunExclude Include="System.Diagnostics.FileVersionInfo.TestAssembly.dll" />
+    <TrimmerRootDescriptor Include="$(MSBuildThisFileDirectory)ILLink.Descriptors.xml" />
   </ItemGroup>
 </Project>