path: root/src/BuildIntegration/Microsoft.NETCore.Native.targets

<!--
***********************************************************************************************
Microsoft.NETCore.Native.targets

WARNING:  DO NOT MODIFY this file unless you are knowledgeable about MSBuild and have
          created a backup copy.  Incorrect changes to this file will make it
          impossible to load or build your projects from the command-line or the IDE.

This file defines the steps in the build process for native AOT compilation.

Licensed to the .NET Foundation under one or more agreements.
The .NET Foundation licenses this file to you under the MIT license.
See the LICENSE file in the project root for more information.
***********************************************************************************************
-->
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

  <!-- Set defaults for unspecified properties -->
  <PropertyGroup>
    <NativeIntermediateOutputPath Condition="'$(NativeIntermediateOutputPath)' == ''">$(IntermediateOutputPath)native\</NativeIntermediateOutputPath>
    <NativeOutputPath Condition="'$(NativeOutputPath)' == ''">$(OutputPath)native\</NativeOutputPath>
    <!-- Workaround for lack of current host OS detection - https://github.com/Microsoft/msbuild/issues/539 -->
    <TargetOS Condition="'$(TargetOS)' == '' and '$(OS)' == 'Unix' and Exists('/Applications')">OSX</TargetOS>
    <TargetOS Condition="'$(TargetOS)' == ''">$(OS)</TargetOS>
  </PropertyGroup>

  <PropertyGroup>
    <NativeObjectExt Condition="'$(TargetOS)' == 'Windows_NT'">.obj</NativeObjectExt>
    <NativeObjectExt Condition="'$(TargetOS)' != 'Windows_NT'">.o</NativeObjectExt>
    <NativeObjectExt Condition="'$(NativeCodeGen)' == 'wasm'">.bc</NativeObjectExt>
    <LibFileExt Condition="'$(TargetOS)' == 'Windows_NT'">.lib</LibFileExt>
    <LibFileExt Condition="'$(TargetOS)' != 'Windows_NT'">.a</LibFileExt>

    <IlcOutputFileExt>$(NativeObjectExt)</IlcOutputFileExt>
    <IlcOutputFileExt Condition="$(NativeCodeGen) == 'cpp'">.cpp</IlcOutputFileExt>
    <IlcOutputFileExt Condition="'$(NativeCodeGen)' == 'wasm'">.bc</IlcOutputFileExt>


    <NativeBinaryExt Condition="'$(OutputType)' ==  'Exe' and '$(TargetOS)' == 'Windows_NT'">.exe</NativeBinaryExt>
    <NativeBinaryExt Condition="'$(OutputType)' ==  'Exe' and '$(TargetOS)' != 'Windows_NT'"></NativeBinaryExt>
    <NativeBinaryExt Condition="'$(OutputType)' !=  'Exe' and '$(TargetOS)' == 'Windows_NT'">.dll</NativeBinaryExt>
    <NativeBinaryExt Condition="'$(OutputType)' !=  'Exe' and '$(TargetOS)' == 'OSX'">.dylib</NativeBinaryExt>
    <NativeBinaryExt Condition="'$(OutputType)' !=  'Exe' and '$(TargetOS)' != 'Windows_NT' and '$(TargetOS)' !=  'OSX'">.so</NativeBinaryExt>
    <NativeBinaryExt Condition="'$(NativeCodeGen)' == 'wasm'">.html</NativeBinaryExt>

    <NativeObject>$(NativeIntermediateOutputPath)$(TargetName)$(NativeObjectExt)</NativeObject>
    <NativeBinary>$(NativeOutputPath)$(TargetName)$(NativeBinaryExt)</NativeBinary>

    <IlcCompileOutput Condition="$(NativeCodeGen) == ''">$(NativeObject)</IlcCompileOutput>
    <IlcCompileOutput Condition="$(NativeCodeGen) == 'cpp'">$(NativeIntermediateOutputPath)$(TargetName).cpp</IlcCompileOutput>

    <LinkNativeDependsOn Condition="$(NativeCodeGen) == ''">IlcCompile</LinkNativeDependsOn>
    <LinkNativeDependsOn Condition="$(NativeCodeGen) == 'cpp'">CppCompile</LinkNativeDependsOn>
    <LinkNativeDependsOn Condition="$(NativeCodeGen) == 'wasm'">IlcCompile</LinkNativeDependsOn>

    <FrameworkLibPath Condition="'$(FrameworkLibPath)' == ''">$(NativeOutputPath)</FrameworkLibPath>
    <FrameworkObjPath Condition="'$(FrameworkObjPath)' == ''">$(NativeIntermediateOutputPath)</FrameworkObjPath>

    <SharedLibrary Condition="'$(OS)' == 'Windows_NT'">$(FrameworkLibPath)\Framework$(LibFileExt)</SharedLibrary>
    <SharedLibrary Condition="'$(OS)' != 'Windows_NT'">$(FrameworkLibPath)\libframework$(LibFileExt)</SharedLibrary>
  </PropertyGroup>

  <ItemGroup Condition="$(BuildingFrameworkLibrary) != 'true'">
    <ManagedBinary Include="$(IntermediateOutputPath)$(TargetName)$(TargetExt)" />
  </ItemGroup>

  <ItemGroup>
    <IlcCompileInput Include="@(ManagedBinary)" />
    <IlcReference Include="$(IlcPath)\sdk\*.dll" />
    <IlcReference Include="$(IlcPath)\framework\*.dll" />
  </ItemGroup>

  <PropertyGroup Condition="'$(IlcCompileDependsOn)'==''">
    <IlcCompileDependsOn Condition="'$(BuildingFrameworkLibrary)' != 'true'">Compile</IlcCompileDependsOn>
    <IlcCompileDependsOn Condition="'$(IlcMultiModule)' == 'true' and '$(BuildingFrameworkLibrary)' != 'true'">$(IlcCompileDependsOn);BuildFrameworkLib</IlcCompileDependsOn>
  </PropertyGroup>

  <!--
    BuildFrameworkLib is invoked before IlcCompile in multi-module builds to 
    produce the shared framework library on demand
  -->
  <Target Name="BuildFrameworkLib" Condition="'$(DisableFrameworkLibGeneration)' != 'true'">
    <ItemGroup>
      <ProjectToBuild Include="$(MSBuildThisFileDirectory)\BuildFrameworkNativeObjects.proj">
        <AdditionalProperties>
          IntermediateOutputPath=$(IntermediateOutputPath);
          FrameworkLibPath=$(FrameworkLibPath);
          FrameworkObjPath=$(FrameworkObjPath)
        </AdditionalProperties>
      </ProjectToBuild>
    </ItemGroup>
    <MSBuild Projects="@(ProjectToBuild)" BuildInParallel="true" />
  </Target>

  <Target Name="IlcCompile" 
      Inputs="@(IlcCompileInput)"
      Outputs="$(NativeIntermediateOutputPath)%(ManagedBinary.Filename)$(IlcOutputFileExt)"
      DependsOnTargets="$(IlcCompileDependsOn)">

    <ItemGroup>
      <IlcArg Include="@(IlcCompileInput)" />
      <IlcArg Include="-o:$(NativeIntermediateOutputPath)%(ManagedBinary.Filename)$(IlcOutputFileExt)" />
      <IlcArg Include="@(IlcReference->'-r:%(Identity)')" />
      <IlcArg Condition="$(IlcGenerateMetadataLog) == 'true'" Include="--metadatalog:$(NativeIntermediateOutputPath)%(ManagedBinary.Filename).metadata.csv" />
      <IlcArg Condition="$(NativeCodeGen) != ''" Include="--$(NativeCodeGen)" />
      <IlcArg Condition="$(IlcMultiModule) == 'true'" Include="--multifile" />
      <IlcArg Condition="$(Optimize) == 'true'" Include="-O" />
      <IlcArg Condition="$(DebugSymbols) == 'true'" Include="-g" />
      <IlcArg Condition="$(IlcGenerateMapFile) == 'true'" Include="--map:$(NativeIntermediateOutputPath)%(ManagedBinary.Filename).map.xml" />
    </ItemGroup>

    <MakeDir Directories="$(NativeIntermediateOutputPath)" />
    <WriteLinesToFile File="$(NativeIntermediateOutputPath)%(ManagedBinary.Filename).ilc.rsp" Lines="@(IlcArg)" Overwrite="true" />

    <MakeDir Directories="$([System.IO.Path]::GetDirectoryName($(NativeObject)))" />

    <Exec Command="&quot;$(IlcPath)\tools\ilc&quot; @&quot;$(NativeIntermediateOutputPath)%(ManagedBinary.Filename).ilc.rsp&quot;" />
  </Target>

  <Import Project="Microsoft.NETCore.Native.Windows.props" Condition="'$(TargetOS)' == 'Windows_NT'" />
  <Import Project="Microsoft.NETCore.Native.Unix.props" Condition="'$(TargetOS)' != 'Windows_NT'" />
  
  <Target Name="CppCompile"
      Inputs="$(IlcCompileOutput)"
      Outputs="$(NativeObject)"
      DependsOnTargets="IlcCompile">

    <ItemGroup>
      <CompilerArg Include="$(IlcCompileOutput)" />
      <CompilerArg Include="/Fo$(NativeObject)" Condition="'$(OS)' == 'Windows_NT'" />
      <CompilerArg Include="-o $(NativeObject)" Condition="'$(OS)' != 'Windows_NT'" />
      <CompilerArg Include="@(CppCompilerAndLinkerArg)" />
    </ItemGroup>

    <MakeDir Directories="$(NativeIntermediateOutputPath)" />
    <Exec Command="$(CppCompiler) @(CompilerArg, ' ')" Condition="'$(OS)' != 'Windows_NT'" />
    <WriteLinesToFile File="$(NativeIntermediateOutputPath)cl.rsp" Lines="@(CompilerArg)" Overwrite="true"  Condition="'$(OS)' == 'Windows_NT'"/>
    <Exec Command="$(CppCompiler) @&quot;$(NativeIntermediateOutputPath)cl.rsp&quot;" Condition="'$(OS)' == 'Windows_NT'" />
  </Target>
  
  <Target Name="LinkNative"
      Inputs="$(NativeObject);@(NativeLibrary)"
      Outputs="$(NativeBinary)"
      DependsOnTargets="$(LinkNativeDependsOn)">

    <ItemGroup>
      <CustomLinkerArg Include="$(NativeObject)" />
      <CustomLinkerArg Include="-o $(NativeBinary)" Condition="'$(OS)' != 'Windows_NT'" />
      <CustomLinkerArg Include="/OUT:$(NativeBinary)" Condition="'$(OS)' == 'Windows_NT'" />
      <CustomLinkerArg Include="@(LinkerArg)" />
    </ItemGroup>

    <MakeDir Directories="$([System.IO.Path]::GetDirectoryName($(NativeBinary)))" />
    <Exec Command="$(CppLinker) @(CustomLinkerArg, ' ')" Condition="'$(OS)' != 'Windows_NT'" />
    <WriteLinesToFile File="$(NativeIntermediateOutputPath)link.rsp" Lines="@(CustomLinkerArg)" Overwrite="true" Condition="'$(OS)' == 'Windows_NT'" />
    <Exec Command="$(CppLinker)  @&quot;$(NativeIntermediateOutputPath)link.rsp&quot;" Condition="'$(OS)' == 'Windows_NT' and '$(NativeCodeGen)' != 'wasm'" />
    <Exec Command="&quot;$(EMSCRIPTEN)\emcc.bat&quot;  &quot;$(NativeObject)&quot; -o &quot;$(NativeBinary)&quot; -s WASM=1" Condition="'$(NativeCodeGen)' == 'wasm' and '$(EMSCRIPTEN)' != ''" />
    <Message Text="Emscripten not found, not linking WebAssembly. To enable WebAssembly linking, install Emscripten and ensure the EMSCRIPTEN environment variable points to the directory containing emcc.bat"
             Condition="'$(NativeCodeGen)' == 'wasm' and '$(EMSCRIPTEN)' == ''" />
  </Target>

  <Target Name="CreateLib"
    Inputs="@(LibInputs)"
    Outputs="$(SharedLibrary)"
    DependsOnTargets="$(CreateLibDependsOn)">

    <ItemGroup>
      <CustomLibArg Include="/out:$(SharedLibrary)" Condition="'$(OS)' == 'Windows_NT'" />
      <CustomLibArg Include="-crs $(SharedLibrary)" Condition="'$(OS)' != 'Windows_NT'" />
      <CustomLibArg Include="@(LibInputs->'%(Identity)')" />
    </ItemGroup>

    <MakeDir Directories="$(NativeIntermediateOutputPath)" />
    <WriteLinesToFile File="$(NativeIntermediateOutputPath)lib.rsp" Lines="@(CustomLibArg)" Overwrite="true" Condition="'$(OS)' == 'Windows_NT'" />

    <MakeDir Directories="$([System.IO.Path]::GetDirectoryName($(SharedLibrary)))" />

    <Exec Command="$(CppLibCreator) @&quot;$(NativeIntermediateOutputPath)lib.rsp&quot;" Condition="'$(OS)' == 'Windows_NT'" />
    <Exec Command="$(CppLibCreator) @(CustomLibArg, ' ')" Condition="'$(OS)' != 'Windows_NT'" />
  </Target>
</Project>