Add a win-x86 join job to run the cross-os DAC signing.

Author: jkoritzinsky

eng/pipelines/templates/stages/vmr-build.yml

@@ -830,6 +830,24 @@ stages:
             - Windows_x86
             - Windows_arm64
 
+        - template: ../jobs/vmr-build.yml
+          parameters:
+            buildName: Windows
+            isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+            vmrBranch: ${{ variables.VmrBranch }}
+            pool: ${{ parameters.pool_Windows }}
+            targetOS: windows
+            targetArchitecture: x86
+            runTests: false
+            buildPass: 2
+            reuseBuildArtifactsFrom:
+            - AzureLinux_x64_Cross_x64
+            - AzureLinux_x64_Cross_Alpine_x64
+            - AzureLinux_x64_Cross_arm64
+            - AzureLinux_x64_Cross_Alpine_arm64
+            - AzureLinux_x64_Cross_arm
+            - AzureLinux_x64_Cross_Alpine_arm
+
 ### FINAL JOIN ###
 - ${{ if and(parameters.isBuiltFromVmr, not(parameters.isSourceOnlyBuild), ne(variables['Build.Reason'], 'PullRequest')) }}:
   - stage: VMR_Final_Join
@@ -868,7 +886,7 @@ stages:
           dotNetBuildPass: final
           primaryDependentJob: Windows_x64
           outputFolder: $(Build.ArtifactStagingDirectory)/artifacts
-  
+
 ### VALIDATION ###
 - ${{ if and(parameters.isBuiltFromVmr, not(parameters.isSourceOnlyBuild), eq(variables['System.TeamProject'], 'internal')) }}:
   - stage: VMR_Validation

src/SourceBuild/content/repo-projects/dotnet.proj

@@ -15,9 +15,14 @@
     <RepositoryReference Include="scenario-tests" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(DotNetBuildPass)' == '2'">
+  <ItemGroup Condition="'$(DotNetBuildPass)' == '2' and '$(TargetOS)' == 'windows' and '$(TargetArchitecture)' == 'x64'">
     <RepositoryReference Remove="@(RepositoryReference)" />
     <RepositoryReference Include="sdk" DotNetBuildPass="2" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(DotNetBuildPass)' == '2' and '$(TargetOS)' == 'windows' and '$(TargetArchitecture)' == 'x86'">
+    <RepositoryReference Remove="@(RepositoryReference)" />
+    <RepositoryReference Include="runtime" DotNetBuildPass="2" />
+  </ItemGroup>
+
 </Project>