dotnet · pavelsavara · Jan 7, 2023 · Nov 30, 2022 · Nov 30, 2022 · Nov 30, 2022
diff --git a/Directory.Build.props b/Directory.Build.props
@@ -36,6 +36,7 @@
     <TargetArchitecture Condition="'$(TargetArchitecture)' == '' and '$(_hostArch)' == 's390x'">s390x</TargetArchitecture>
     <TargetArchitecture Condition="'$(TargetArchitecture)' == '' and '$(_hostArch)' == 'ppc64le'">ppc64le</TargetArchitecture>
     <TargetArchitecture Condition="'$(TargetArchitecture)' == '' and ('$(TargetOS)' == 'Browser' or '$(RuntimeIdentifier)' == 'browser-wasm')">wasm</TargetArchitecture>
+    <TargetArchitecture Condition="'$(TargetArchitecture)' == '' and ('$(TargetOS)' == 'wasi' or '$(RuntimeIdentifier)' == 'wasi-wasm')">wasm</TargetArchitecture>
     <TargetArchitecture Condition="'$(TargetArchitecture)' == '' and '$(TargetsMobile)' == 'true'">x64</TargetArchitecture>
     <TargetArchitecture Condition="'$(TargetArchitecture)' == ''">x64</TargetArchitecture>
     <Platform Condition="'$(Platform)' == '' and '$(InferPlatformFromTargetArchitecture)' == 'true'">$(TargetArchitecture)</Platform>
@@ -129,6 +130,8 @@
     <TestExclusionListTasksAssemblyPath>$([MSBuild]::NormalizePath('$(TestExclusionListTasksDir)', 'TestExclusionListTasks.dll'))</TestExclusionListTasksAssemblyPath>
     <CoreCLRToolPath>$([MSBuild]::NormalizeDirectory('$(ArtifactsBinDir)', 'coreclr', '$(TargetOS).$(TargetArchitecture).$(Configuration)'))</CoreCLRToolPath>
     <ILAsmToolPath Condition="'$(DotNetBuildFromSource)' == 'true' or '$(BuildArchitecture)' == 's390x' or '$(BuildArchitecture)' == 'ppc64le'">$(CoreCLRToolPath)</ILAsmToolPath>
+
+    <WasmtimeDir>$([MSBuild]::NormalizeDirectory($(ArtifactsObjDir), 'wasmtime'))</WasmtimeDir>
   </PropertyGroup>
 
   <PropertyGroup Label="CalculateConfiguration">

diff --git a/eng/build.ps1 b/eng/build.ps1
@@ -241,6 +241,10 @@ if ($PSBoundParameters.ContainsKey('os') -and $PSBoundParameters['os'] -eq "Brow
   # make sure it is capitalized
   $PSBoundParameters['os'] = "Browser"
 }
+if ($PSBoundParameters.ContainsKey('os') -and $PSBoundParameters['os'] -eq "wasi") {
+  # make sure it is not capitalized
+  $PSBoundParameters['os'] = "wasi"
+}
 
 foreach ($argument in $PSBoundParameters.Keys)
 {

diff --git a/eng/native/configurecompiler.cmake b/eng/native/configurecompiler.cmake
@@ -168,7 +168,7 @@ elseif (CLR_CMAKE_HOST_UNIX)
     endif ()
   endif(UPPERCASE_CMAKE_BUILD_TYPE STREQUAL DEBUG OR UPPERCASE_CMAKE_BUILD_TYPE STREQUAL CHECKED)
 
-  if(CLR_CMAKE_HOST_BROWSER)
+  if(CLR_CMAKE_HOST_BROWSER OR CLR_CMAKE_HOST_WASI)
     # The emscripten build has additional warnings so -Werror breaks
     add_compile_options(-Wno-unused-parameter)
     add_compile_options(-Wno-alloca)
@@ -390,7 +390,7 @@ if (CLR_CMAKE_HOST_UNIX)
       add_definitions(-DLSE_INSTRUCTIONS_ENABLED_BY_DEFAULT)
       add_compile_options(-mcpu=apple-m1)
     endif(CLR_CMAKE_HOST_UNIX_ARM64)
-  elseif(NOT CLR_CMAKE_HOST_BROWSER)
+  elseif(NOT CLR_CMAKE_HOST_BROWSER AND NOT CLR_CMAKE_HOST_WASI)
     check_c_compiler_flag(-fstack-protector-strong COMPILER_SUPPORTS_F_STACK_PROTECTOR_STRONG)
     if (COMPILER_SUPPORTS_F_STACK_PROTECTOR_STRONG)
       add_compile_options(-fstack-protector-strong)
@@ -795,7 +795,7 @@ if (CLR_CMAKE_HOST_WIN32)
         message(FATAL_ERROR "MC not found")
     endif()
 
-elseif (NOT CLR_CMAKE_HOST_BROWSER)
+elseif (NOT CLR_CMAKE_HOST_BROWSER AND NOT CLR_CMAKE_HOST_WASI)
     # This is a workaround for upstream issue: https://gitlab.kitware.com/cmake/cmake/-/issues/22995.
     #
     # In Clang.cmake, the decision to use single or double hyphen for target and gcc-toolchain

diff --git a/eng/native/configureplatform.cmake b/eng/native/configureplatform.cmake
@@ -214,9 +214,9 @@ if(CLR_CMAKE_HOST_OS STREQUAL Emscripten)
     set(CLR_CMAKE_HOST_BROWSER 1)
 endif(CLR_CMAKE_HOST_OS STREQUAL Emscripten)
 
-if(CLR_CMAKE_TARGET_OS STREQUAL Wasi)
+if(CLR_CMAKE_TARGET_OS STREQUAL WASI)
     set(CLR_CMAKE_HOST_WASI 1)
-endif(CLR_CMAKE_TARGET_OS STREQUAL Wasi)
+endif(CLR_CMAKE_TARGET_OS STREQUAL WASI)
 
 #--------------------------------------------
 # This repo builds two set of binaries
@@ -417,9 +417,9 @@ if(CLR_CMAKE_TARGET_OS STREQUAL Emscripten)
     set(CLR_CMAKE_TARGET_BROWSER 1)
 endif(CLR_CMAKE_TARGET_OS STREQUAL Emscripten)
 
-if(CLR_CMAKE_TARGET_OS STREQUAL Wasi)
+if(CLR_CMAKE_TARGET_OS STREQUAL WASI)
     set(CLR_CMAKE_TARGET_WASI 1)
-endif(CLR_CMAKE_TARGET_OS STREQUAL Wasi)
+endif(CLR_CMAKE_TARGET_OS STREQUAL WASI)
 
 if(CLR_CMAKE_TARGET_UNIX)
     if(CLR_CMAKE_TARGET_ARCH STREQUAL x64)
@@ -454,7 +454,7 @@ else()
 endif(CLR_CMAKE_TARGET_UNIX)
 
 # check if host & target os/arch combination are valid
-if (NOT (CLR_CMAKE_TARGET_OS STREQUAL CLR_CMAKE_HOST_OS))
+if (NOT (CLR_CMAKE_TARGET_OS STREQUAL CLR_CMAKE_HOST_OS) AND NOT CLR_CMAKE_TARGET_WASI)
     if(NOT (CLR_CMAKE_HOST_OS STREQUAL windows))
         message(FATAL_ERROR "Invalid host and target os/arch combination. Host OS: ${CLR_CMAKE_HOST_OS}")
     endif()
@@ -466,7 +466,7 @@ if (NOT (CLR_CMAKE_TARGET_OS STREQUAL CLR_CMAKE_HOST_OS))
     endif()
 endif()
 
-if(NOT CLR_CMAKE_TARGET_BROWSER)
+if(NOT CLR_CMAKE_TARGET_BROWSER AND NOT CLR_CMAKE_TARGET_WASI)
     # The default linker on Solaris also does not support PIE.
     if(NOT CLR_CMAKE_TARGET_ANDROID AND NOT CLR_CMAKE_TARGET_SUNOS AND NOT CLR_CMAKE_TARGET_OSX AND NOT CLR_CMAKE_TARGET_MACCATALYST AND NOT CLR_CMAKE_HOST_TVOS AND NOT CLR_CMAKE_HOST_IOS AND NOT MSVC)
         set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pie")

diff --git a/eng/native/configuretools.cmake b/eng/native/configuretools.cmake
@@ -6,7 +6,7 @@ if (CMAKE_C_COMPILER MATCHES "-?[0-9]+(\.[0-9]+)?$")
   set(CLR_CMAKE_COMPILER_FILE_NAME_VERSION "${CMAKE_MATCH_0}")
 endif()
 
-if(NOT WIN32 AND NOT CLR_CMAKE_TARGET_BROWSER)
+if(NOT WIN32 AND NOT CLR_CMAKE_TARGET_BROWSER AND NOT CLR_CMAKE_TARGET_WASI)
   if(CMAKE_C_COMPILER_ID MATCHES "Clang")
     if(APPLE)
       set(TOOLSET_PREFIX "")

diff --git a/eng/native/gen-buildsys.cmd b/eng/native/gen-buildsys.cmd
@@ -48,21 +48,34 @@ if /i "%__Arch%" == "wasm" (
     )
     if /i "%__Os%" == "Browser" (
         if "%EMSDK_PATH%" == "" (
-            if not exist "%__repoRoot%src\mono\wasm\emsdk" (
+            if not exist "%__repoRoot%\src\mono\wasm\emsdk" (
                 echo Error: Should set EMSDK_PATH environment variable pointing to emsdk root.
                 exit /B 1
             )
 
-            set EMSDK_PATH=%__repoRoot%src\mono\wasm\emsdk
-            set EMSDK_PATH=!EMSDK_PATH:\=/!
+            set EMSDK_PATH=%__repoRoot%\src\mono\wasm\emsdk
         )
+        :: replace backslash with forward slash and append last slash
+        set "EMSDK_PATH=!EMSDK_PATH:\=/!"
+        if not "!EMSDK_PATH:~-1!" == "/" set "EMSDK_PATH=!EMSDK_PATH!/"
 
         set __ExtraCmakeParams=%__ExtraCmakeParams% "-DCMAKE_TOOLCHAIN_FILE=!EMSDK_PATH!/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake"
         set __UseEmcmake=1
     )
     if /i "%__Os%" == "wasi" (
-        echo Error: WASI build not implemented on Windows yet
-        exit /B 1
+        if "%WASI_SDK_PATH%" == "" (
+            if not exist "%__repoRoot%\src\mono\wasi\wasi-sdk" (
+                echo Error: Should set WASI_SDK_PATH environment variable pointing to emsdk root.
+                exit /B 1
+            )
+
+            set WASI_SDK_PATH=%__repoRoot%src\mono\wasi\wasi-sdk
+        )
+        :: replace backslash with forward slash and append last slash
+        set "WASI_SDK_PATH=!WASI_SDK_PATH:\=/!"
+        if not "!WASI_SDK_PATH:~-1!" == "/" set "WASI_SDK_PATH=!WASI_SDK_PATH!/"
+        set __CmakeGenerator=Ninja
+        set __ExtraCmakeParams=%__ExtraCmakeParams% -DCLR_CMAKE_TARGET_OS=WASI -DCLR_CMAKE_TARGET_ARCH=wasm "-DWASI_SDK_PREFIX=!WASI_SDK_PATH!" "-DCMAKE_TOOLCHAIN_FILE=!WASI_SDK_PATH!/share/cmake/wasi-sdk.cmake" "-DCMAKE_SYSROOT=!WASI_SDK_PATH!/share/wasi-sysroot"
     )
 ) else (
     set __ExtraCmakeParams=%__ExtraCmakeParams%  "-DCMAKE_SYSTEM_VERSION=10.0"

diff --git a/eng/pipelines/common/platform-matrix.yml b/eng/pipelines/common/platform-matrix.yml
@@ -358,6 +358,27 @@ jobs:
         crossBuild: true
         ${{ insert }}: ${{ parameters.jobParameters }}
 
+# WASI WebAssembly
+
+- ${{ if containsValue(parameters.platforms, 'wasi_wasm') }}:
+  - template: xplat-setup.yml
+    parameters:
+      jobTemplate: ${{ parameters.jobTemplate }}
+      helixQueuesTemplate: ${{ parameters.helixQueuesTemplate }}
+      variables: ${{ parameters.variables }}
+      osGroup: wasi
+      archType: wasm
+      targetRid: wasi-wasm
+      platform: wasi_wasm
+      shouldContinueOnError: ${{ parameters.shouldContinueOnError }}
+      container: wasi_wasm
+      jobParameters:
+        hostedOs: Linux
+        runtimeFlavor: ${{ parameters.runtimeFlavor }}
+        stagedBuild: ${{ parameters.stagedBuild }}
+        buildConfig: ${{ parameters.buildConfig }}
+        ${{ insert }}: ${{ parameters.jobParameters }}
+
 # Browser WebAssembly
 
 - ${{ if containsValue(parameters.platforms, 'Browser_wasm') }}:

diff --git a/eng/pipelines/common/templates/pipeline-with-resources.yml b/eng/pipelines/common/templates/pipeline-with-resources.yml
@@ -60,6 +60,9 @@ resources:
     - container: Browser_wasm
       image: mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-18.04-webassembly
 
+    - container: wasi_wasm
+      image: mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-20.04-webassembly
+
     - container: FreeBSD_x64
       image: mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-18.04-cross-freebsd-12
       env:

diff --git a/eng/pipelines/common/templates/wasi-build-only.yml b/eng/pipelines/common/templates/wasi-build-only.yml
@@ -0,0 +1,49 @@
+parameters:
+  alwaysRun: false
+  extraBuildArgs: ''
+  isExtraPlatformsBuild: false
+  nameSuffix: ''
+  platforms: []
+
+jobs:
+
+#
+# Build for WASI/wasm and test it
+#
+- template: /eng/pipelines/common/platform-matrix.yml
+  parameters:
+    jobTemplate: /eng/pipelines/common/global-build-job.yml
+    helixQueuesTemplate: /eng/pipelines/libraries/helix-queues-setup.yml
+    buildConfig: Release
+    runtimeFlavor: mono
+    platforms: ${{ parameters.platforms }}
+    variables:
+      # map dependencies variables to local variables
+      - name: alwaysRunVar
+        value: ${{ parameters.alwaysRun }}
+      - name: shouldRunOnDefaultPipelines
+        value: $[
+          or(
+            eq(variables['wasmDarcDependenciesChanged'], true),
+            eq(dependencies.evaluate_paths.outputs['SetPathVars_libraries.containsChange'], true),
+            and(
+              eq(dependencies.evaluate_paths.outputs['SetPathVars_wasm.containsChange'], true),
+              eq(dependencies.evaluate_paths.outputs['SetPathVars_non_runtimetests.containsChange'], true)),
+            eq(dependencies.evaluate_paths.outputs['SetPathVars_wasm_libraries.containsChange'], true),
+            eq(dependencies.evaluate_paths.outputs['SetPathVars_mono_excluding_wasm.containsChange'], true))
+          ]
+    jobParameters:
+      isExtraPlatforms: ${{ parameters.isExtraPlatformsBuild }}
+      testGroup: innerloop
+      nameSuffix: ${{ parameters.nameSuffix }}_BuildOnly
+      buildArgs: -s mono+libs+host -c $(_BuildConfig) /p:ArchiveTests=true ${{ parameters.extraBuildArgs }}
+      timeoutInMinutes: 240
+      # if !alwaysRun, then:
+      #   if this is runtime-wasm (isWasmOnlyBuild):
+      #     - then run only if it would not have run on default pipelines (based
+      #       on path changes)
+      #     - else run based on path changes
+      condition: >-
+        or(
+          eq(variables['alwaysRunVar'], true),
+          eq(variables['isDefaultPipeline'], variables['shouldRunOnDefaultPipelines']))
@@ -71,16 +71,8 @@ jobs:
           eq(variables['alwaysRunVar'], true),
           eq(variables['isDefaultPipeline'], variables['shouldRunOnDefaultPipelines']))
       # extra steps, run tests
-      extraStepsTemplate: /eng/pipelines/common/templates/additional-steps-then-helix.yml
+      extraStepsTemplate: /eng/pipelines/libraries/helix.yml
       extraStepsParameters:
-        additionalSteps:
-          - ${{ if eq(parameters.buildAndRunWasi, true) }}:
-            - script: >-
-                make -C src/mono/wasi provision-deps all &&
-                make -C src/mono/wasi/sample/console run
-              name: build_wasi
-              displayName: Build WASI, and run a sample
-
         creator: dotnet-bot
         testRunNamePrefixSuffix: Mono_$(_BuildConfig)
         extraHelixArguments: /p:BrowserHost=$(_hostedOs) $(_wasmRunSmokeTestsOnlyArg) ${{ parameters.extraHelixArgs }}

diff --git a/eng/pipelines/libraries/helix-queues-setup.yml b/eng/pipelines/libraries/helix-queues-setup.yml
@@ -187,8 +187,8 @@ jobs:
     - ${{ if eq(parameters.platform, 'windows_arm64') }}:
       - Windows.11.Arm64.Open
 
-    # Browser WebAssembly
-    - ${{ if eq(parameters.platform, 'Browser_wasm') }}:
+    # Browser/WASI WebAssembly
+    - ${{ if in(parameters.platform, 'Browser_wasm', 'wasi_wasm') }}:
       - Ubuntu.1804.Amd64.Open
 
     # Browser WebAssembly Firefox

diff --git a/eng/pipelines/runtime.yml b/eng/pipelines/runtime.yml
@@ -456,6 +456,13 @@ extends:
           extraBuildArgs: /p:MonoWasmBuildVariant=perftrace
           alwaysRun: ${{ variables.isRollingBuild }}
 
+      # BUILD ONLY - WASI/Wasm
+      - template: /eng/pipelines/common/templates/wasi-build-only.yml
+        parameters:
+          platforms:
+            - wasi_wasm
+          alwaysRun: ${{ variables.isRollingBuild }}
+
       #
       # iOS/tvOS devices - Full AOT + AggressiveTrimming to reduce size
       # Build the whole product using Mono and run libraries tests

diff --git a/eng/targetingpacks.targets b/eng/targetingpacks.targets
@@ -45,7 +45,7 @@
                       RuntimeFrameworkName="$(LocalFrameworkOverrideName)"
                       LatestRuntimeFrameworkVersion="$(ProductVersion)"
                       RuntimePackNamePatterns="$(LocalFrameworkOverrideName).Runtime.Mono.**RID**"
-                      RuntimePackRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;rhel.6-x64;win-arm;win-arm64;win-x64;win-x86;linux-musl-arm;osx-arm64;maccatalyst-x64;maccatalyst-arm64;linux-s390x;linux-bionic-arm;linux-bionic-arm64;linux-bionic-x64;linux-bionic-x86;browser-wasm;ios-arm64;ios-arm;iossimulator-arm64;iossimulator-x64;iossimulator-x86;tvos-arm64;tvossimulator-arm64;tvossimulator-x64;android-arm64;android-arm;android-x64;android-x86"
+                      RuntimePackRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;rhel.6-x64;win-arm;win-arm64;win-x64;win-x86;linux-musl-arm;osx-arm64;maccatalyst-x64;maccatalyst-arm64;linux-s390x;linux-bionic-arm;linux-bionic-arm64;linux-bionic-x64;linux-bionic-x86;browser-wasm;wasi-wasm;ios-arm64;ios-arm;iossimulator-arm64;iossimulator-x64;iossimulator-x86;tvos-arm64;tvossimulator-arm64;tvossimulator-x64;android-arm64;android-arm;android-x64;android-x86"
                       RuntimePackLabels="Mono"
                       Condition="'@(KnownRuntimePack)' == '' or !@(KnownRuntimePack->AnyHaveMetadataValue('TargetFramework', '$(NetCoreAppCurrent)'))"/>
     <KnownCrossgen2Pack Include="$(LocalFrameworkOverrideName).Crossgen2"

diff --git a/eng/testing/wasi-provisioning.targets b/eng/testing/wasi-provisioning.targets
@@ -0,0 +1,3 @@
+<Project>
+  <Import Project="$(MSBuildThisFileDirectory)ProvisioningVersions.props" />
+</Project>
diff --git a/eng/versioning.targets b/eng/versioning.targets
@@ -65,6 +65,9 @@
   <PropertyGroup Condition="'$(TargetPlatformIdentifier)' == '' and !$(TargetFrameworks.Contains('$(TargetFramework)-browser'))">
     <CrossPlatformAndHasNoBrowserTarget>true</CrossPlatformAndHasNoBrowserTarget>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(TargetPlatformIdentifier)' == '' and !$(TargetFrameworks.Contains('$(TargetFramework)-wasi'))">
+    <CrossPlatformAndHasNoWasiTarget>true</CrossPlatformAndHasNoWasiTarget>
+  </PropertyGroup>
 
   <!-- Enables warnings for Android, iOS, tvOS and macCatalyst for all builds -->
   <ItemGroup>
@@ -78,6 +81,9 @@
   <ItemGroup Condition="('$(TargetPlatformIdentifier)' == 'browser' or '$(CrossPlatformAndHasNoBrowserTarget)' == 'true') and '$(IsTestProject)' != 'true'">
     <SupportedPlatform Include="browser"/>
   </ItemGroup>
+  <ItemGroup Condition="('$(TargetPlatformIdentifier)' == 'wasi' or '$(CrossPlatformAndHasNoWasiTarget)' == 'true') and '$(IsTestProject)' != 'true'">
+    <SupportedPlatform Include="wasi"/>
+  </ItemGroup>
 
   <!-- Add target platforms into MSBuild SupportedPlatform list -->
   <ItemGroup Condition="'$(IsTestProject)' != 'true'">

diff --git a/src/libraries/System.Console/src/System.Console.csproj b/src/libraries/System.Console/src/System.Console.csproj
@@ -1,12 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <TargetFrameworks>$(NetCoreAppCurrent)-windows;$(NetCoreAppCurrent)-unix;$(NetCoreAppCurrent)-android;$(NetCoreAppCurrent)-ios;$(NetCoreAppCurrent)-tvos;$(NetCoreAppCurrent)-browser;$(NetCoreAppCurrent)</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-windows;$(NetCoreAppCurrent)-unix;$(NetCoreAppCurrent)-android;$(NetCoreAppCurrent)-ios;$(NetCoreAppCurrent)-tvos;$(NetCoreAppCurrent)-browser;$(NetCoreAppCurrent)-wasi;$(NetCoreAppCurrent)</TargetFrameworks>
   </PropertyGroup>
   <!-- DesignTimeBuild requires all the TargetFramework Derived Properties to not be present in the first property group. -->
   <PropertyGroup>
     <TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>
     <GeneratePlatformNotSupportedAssemblyMessage Condition="'$(TargetPlatformIdentifier)' == ''">SR.PlatformNotSupported_SystemConsole</GeneratePlatformNotSupportedAssemblyMessage>
+    <DefineConstants Condition="'$(TargetPlatformIdentifier)' == 'Browser'">$(DefineConstants);TARGET_BROWSER</DefineConstants>
+    <DefineConstants Condition="'$(TargetPlatformIdentifier)' == 'wasi'">$(DefineConstants);TARGET_WASI</DefineConstants>
   </PropertyGroup>
   <ItemGroup Condition="'$(TargetPlatformIdentifier)' != ''">
     <Compile Include="System\Console.cs" />
@@ -47,7 +49,7 @@
       <Link>Common\Interop\Android\Interop.Libraries.cs</Link>
     </Compile>
   </ItemGroup>
-  <!-- WebAssembly -->
+  <!-- Browser -->
   <ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'browser'">
     <Compile Include="System\ConsolePal.WebAssembly.cs" />
     <Compile Include="$(CommonPath)Interop\Unix\System.Native\Interop.Dup.cs"
@@ -63,6 +65,37 @@
     <Compile Include="$(CommonPath)Interop\Unix\Interop.IOErrors.cs"
              Link="Common\Interop\Unix\Interop.IOErrors.cs" />
   </ItemGroup>
+  <!-- WASI is like unix without dup and termio -->
+  <ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'wasi'">
+    <Compile Include="System\ConsolePal.Wasi.cs" />
+    <Compile Include="System\ConsolePal.Unix.ConsoleStream.cs" />
+    <!-- 
+    <Compile Include="System\IO\SyncTextReader.Unix.cs" />
+     -->
+
+    <Compile Include="$(CommonPath)Interop\Unix\System.Native\Interop.StdinReady.cs"
+             Link="Common\Interop\Unix\Interop.StdinReady.cs" />
+    <Compile Include="$(CommonPath)Interop\Unix\System.Native\Interop.ReadStdinUnbuffered.cs"
+             Link="Common\Interop\Unix\Interop.ReadStdinUnbuffered.cs" />
+    <Compile Include="$(CommonPath)Interop\Unix\System.Native\Interop.Poll.cs"
+             Link="Common\Interop\Unix\Interop.Poll.cs" />
+    <Compile Include="$(CommonPath)Interop\Unix\Interop.Poll.Structs.cs"
+             Link="Common\Interop\Unix\Interop.Poll.Structs.cs" />
+    <Compile Include="$(CommonPath)Interop\Unix\System.Native\Interop.Read.cs"
+             Link="Common\Interop\Unix\Interop.Read.cs" />
+    <Compile Include="$(CommonPath)System\Text\EncodingHelper.Unix.cs"
+             Link="Common\System\Text\EncodingHelper.Unix.cs" />
+    <Compile Include="$(CommonPath)Interop\Unix\System.Native\Interop.Write.cs"
+             Link="Common\Interop\Unix\Interop.Write.cs" />
+    <Compile Include="$(CommonPath)Interop\Unix\Interop.Libraries.cs"
+             Link="Common\Interop\Unix\Interop.Libraries.cs" />
+    <Compile Include="$(CommonPath)Interop\Unix\Interop.Errors.cs"
+             Link="Common\Interop\Unix\Interop.Errors.cs" />
+    <Compile Include="$(CommonPath)Interop\Unix\System.Native\Interop.FileDescriptors.cs"
+             Link="Common\Interop\Unix\Interop.FileDescriptors.cs" />
+    <Compile Include="$(CommonPath)Interop\Unix\Interop.IOErrors.cs"
+             Link="Common\Interop\Unix\Interop.IOErrors.cs" />
+  </ItemGroup>
   <!-- Windows -->
   <ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'windows'">
     <Compile Include="System\ConsolePal.Windows.cs" />
@@ -158,6 +191,7 @@
   <!-- Unix -->
   <ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'unix'">
     <Compile Include="System\ConsolePal.Unix.cs" />
+    <Compile Include="System\ConsolePal.Unix.ConsoleStream.cs" />
     <Compile Include="System\TerminalFormatStrings.cs" />
     <Compile Include="$(CommonPath)System\Console\ConsoleUtils.cs"
              Link="Common\System\Console\ConsoleUtils.cs" />