From b44c53a194b3144216567c02de3ea993c9878b05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20Strehovsk=C3=BD?=
 <MichalStrehovsky@users.noreply.github.com>
Date: Wed, 22 Jun 2022 16:56:56 +0900
Subject: [PATCH] Recognize TrimMode=partial in ILCompiler targets

This should root all non-trimmable assemblies, same as TrimmerDefaultAction=copy.

We still support consuming ILCompiler through NuGet when targeting .NET 6, so recognize the old thing too. We might want to cut the .NET 6 support close to RC and at that time TrimmerDefaultAction handling can go away.

Related: https://github.com/dotnet/linker/pull/2856.
---
 .../nativeaot/BuildIntegration/Microsoft.NETCore.Native.targets | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.targets b/src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.targets
index 9f079b4323fb8c..2f7233532e5a2e 100644
--- a/src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.targets
+++ b/src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.targets
@@ -245,7 +245,7 @@ The .NET Foundation licenses this file to you under the MIT license.
       <IlcArg Include="@(_IlcConditionallyRootedAssemblies->'--conditionalroot:%(Identity)')" />
       <IlcArg Include="@(_IlcTrimmedAssemblies->'--trim:%(Identity)')" />
       <IlcArg Include="@(_IlcNoSingleWarnAssemblies->'--nosinglewarnassembly:%(Filename)')" />
-      <IlcArg Condition="'$(TrimmerDefaultAction)' == 'copyused' or '$(TrimmerDefaultAction)' == 'copy'" Include="--defaultrooting" />
+      <IlcArg Condition="'$(TrimmerDefaultAction)' == 'copyused' or '$(TrimmerDefaultAction)' == 'copy' or '$(TrimMode)' == 'partial'" Include="--defaultrooting" />
       <IlcArg Include="--resilient" />
 
       <IlcArg Condition="$(IlcDisableReflection) == 'true'" Include="--feature:System.Reflection.IsReflectionExecutionAvailable=false" />