CreateRuntimeRootILLinkDescriptorFile.targets

<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

  <PropertyGroup>
    <CompileDependsOn>_CreateILLinkRuntimeRootDescriptorFile;$(CompileDependsOn)</CompileDependsOn>
  </PropertyGroup>

  <PropertyGroup>
    <_ILLinkRuntimeRootDescriptorFilePath>$(ILLinkTrimXml)</_ILLinkRuntimeRootDescriptorFilePath>
    <_NamespaceFilePath Condition=" '$(_NamespaceFilePath)' == '' ">$(MSBuildThisFileDirectory)..\vm\namespace.h</_NamespaceFilePath>
    <_MscorlibFilePath Condition=" '$(_MscorlibFilePath)' == '' ">$(MSBuildThisFileDirectory)..\vm\corelib.h</_MscorlibFilePath>
    <_CortypeFilePath Condition=" '$(_CortypeFilePath)' == '' ">$(MSBuildThisFileDirectory)..\inc\cortypeinfo.h</_CortypeFilePath>
    <_RexcepFilePath Condition=" '$(_RexcepFilePath)' == '' ">$(MSBuildThisFileDirectory)..\vm\rexcep.h</_RexcepFilePath>
    <_ILLinkDescriptorsIntermediatePath>$(IntermediateOutputPath)ILLink.Descriptors.Combined.xml</_ILLinkDescriptorsIntermediatePath>
    <_ILLinkTasksToolsDir>$(PkgMicrosoft_NET_ILLink_Tasks)/tools</_ILLinkTasksToolsDir>
    <_ILLinkTasksDir>$(_ILLinkTasksToolsDir)/net472/</_ILLinkTasksDir>
    <_ILLinkTasksDir Condition="'$(MSBuildRuntimeType)' == 'Core'">$(_ILLinkTasksToolsDir)/net5.0/</_ILLinkTasksDir>
    <_ILLinkTasksPath>$(_ILLinkTasksDir)ILLink.Tasks.dll</_ILLinkTasksPath>
  </PropertyGroup>

  <ItemGroup>
    <_ILLinkDescriptorsFilePaths Include="$(ILLinkDirectory)ILLinkTrim.xml" />
    <_ILLinkDescriptorsFilePaths Include="$(CoreLibSharedDir)ILLink\ILLink.Descriptors.Shared.xml" />
  </ItemGroup>

  <!--
        Generates the xml root descriptor file for ILLink. The file contains roots required by the runtime.
        This gets generated by mono IL linker which lives in https://github.com/mono/linker
        If it fails, it'll spit out some cryptic error messages that's hard to debug.
        You can debug it by setting /maxcpucount:1 in the msbuild command to force it to not spawn up a bunch
        of child processes, and attach a debugger to msbuild. After that you can set a bp on the exception
        you are seeing.
  -->
  <UsingTask TaskName="CreateRuntimeRootILLinkDescriptorFile" AssemblyFile="$(_ILLinkTasksPath)" />
  <Target Name="_CreateILLinkRuntimeRootDescriptorFile"
          DependsOnTargets="_CombineILLinkTrimXmlFilePaths"
          Inputs="$(_NamespaceFilePath);$(_MscorlibFilePath);$(_CortypeFilePath);$(_RexcepFilePath);$(_ILLinkDescriptorsIntermediatePath)"
          Outputs="$(_ILLinkRuntimeRootDescriptorFilePath)">
    <Message Text="Generating ILLink roots file: $(_ILLinkRuntimeRootDescriptorFilePath)" />
    <CreateRuntimeRootILLinkDescriptorFile NamespaceFilePath="$(_NamespaceFilePath)"
                                           MscorlibFilePath="$(_MscorlibFilePath)"
                                           CortypeFilePath="$(_CortypeFilePath)"
                                           RexcepFilePath="$(_RexcepFilePath)"
                                           ILLinkTrimXmlFilePath="$(_ILLinkDescriptorsIntermediatePath)"
                                           RuntimeRootDescriptorFilePath="$(_ILLinkRuntimeRootDescriptorFilePath)" />
  </Target>

  <UsingTask TaskName="CombineLinkerXmlFiles" AssemblyFile="$(_ILLinkTasksPath)" />
  <Target Name="_CombineILLinkTrimXmlFilePaths"
          Inputs="@(_ILLinkDescriptorsFilePaths)"
          Outputs="$(_ILLinkDescriptorsIntermediatePath)">

    <CombineLinkerXmlFiles LinkerXmlFiles="@(_ILLinkDescriptorsFilePaths)"
                           CombinedLinkerXmlFile="$(_ILLinkDescriptorsIntermediatePath)" />

    <ItemGroup>
      <FileWrites Include="$(_ILLinkDescriptorsXmlIntermediatePath)" />
    </ItemGroup>
  </Target>

</Project>