Make browser peer for windows_nt and unix

eng/targetframeworksuffix.props

@@ -78,8 +78,8 @@
     </When>
     <When Condition="'$(TargetFrameworkSuffix)' == 'Browser'">
       <PropertyGroup>
-        <TargetsUnix>true</TargetsUnix>
         <TargetsBrowser>true</TargetsBrowser>
+        <PackageTargetRuntime>browser</PackageTargetRuntime>
       </PropertyGroup>
     </When>
     <When Condition="'$(TargetFrameworkSuffix)' == ''">
@@ -88,4 +88,8 @@
       </PropertyGroup>
     </When>
   </Choose>
+
+  <PropertyGroup>
+    <EnablePInvokeAnalyzer Condition="'$(TargetsBrowser)' == 'true'">false</EnablePInvokeAnalyzer>
+  </PropertyGroup>
 </Project>

src/installer/Directory.Build.props

@@ -213,7 +213,6 @@
     <When Condition="$(OutputRid.StartsWith('browser'))">
       <PropertyGroup>
         <TargetsBrowser>true</TargetsBrowser>
-        <TargetsUnix>true</TargetsUnix>
         <TargetsMobile>true</TargetsMobile>
       </PropertyGroup>
     </When>

src/libraries/Common/tests/Common.Tests.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <IncludeRemoteExecutor>true</IncludeRemoteExecutor>
-    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent)-OSX</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent)-Browser;$(NetCoreAppCurrent)-OSX</TargetFrameworks>
     <Nullable>annotations</Nullable>
   </PropertyGroup>
   <ItemGroup>
@@ -195,7 +195,7 @@
     <Compile Include="$(CoreLibSharedDir)System\PasteArguments.Windows.cs"
              Link="System\PasteArguments.Windows.cs" />
   </ItemGroup>
-  <ItemGroup Condition="'$(TargetsUnix)'=='true'">
+  <ItemGroup Condition="'$(TargetsUnix)' == 'true' or '$(TargetsBrowser)' == 'true'">
     <Compile Include="Tests\System\IO\PathInternal.Unix.Tests.cs" />
     <Compile Include="$(CoreLibSharedDir)System\IO\PathInternal.Unix.cs"
              Link="System\IO\PathInternal.Unix.cs" />
@@ -207,7 +207,7 @@
              Link="System\PasteArguments.Unix.cs" />
   </ItemGroup>
   <!-- Linux specific files -->
-  <ItemGroup Condition="'$(TargetsLinux)' == 'true' ">
+  <ItemGroup Condition="'$(TargetsLinux)' == 'true' or '$(TargetsBrowser)' == 'true'">
     <Compile Include="$(CommonPath)Interop\Linux\Interop.Libraries.cs"
              Link="Common\Interop\Linux\Interop.Libraries.cs" />
   </ItemGroup>

src/libraries/Directory.Build.props

@@ -17,7 +17,7 @@
     <RuntimeGraph>$(LibrariesProjectRoot)OSGroups.json</RuntimeGraph>
     <BuildTargetFramework>$(NetCoreAppCurrent)</BuildTargetFramework>
     <ShouldUnsetParentConfigurationAndPlatform>false</ShouldUnsetParentConfigurationAndPlatform>
-    <AdditionalBuildTargetFrameworks Condition="'$(BuildingInsideVisualStudio)' == 'true'">$(AdditionalBuildTargetFrameworks);$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix;$(NetCoreAppCurrent)-OSX;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent)-NetBSD;$(NetCoreAppCurrent)-FreeBSD;$(NetCoreAppCurrent)-illumos;$(NetCoreAppCurrent)-Solaris</AdditionalBuildTargetFrameworks>
+    <AdditionalBuildTargetFrameworks Condition="'$(BuildingInsideVisualStudio)' == 'true'">$(AdditionalBuildTargetFrameworks);$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix;$(NetCoreAppCurrent)-Browser;$(NetCoreAppCurrent)-OSX;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent)-NetBSD;$(NetCoreAppCurrent)-FreeBSD;$(NetCoreAppCurrent)-illumos;$(NetCoreAppCurrent)-Solaris</AdditionalBuildTargetFrameworks>
     <!-- Remove once is fixed: https://github.com/dotnet/roslyn/issues/42344 -->
     <GeneratePlatformNotSupportedAssemblyHeaderFile>$(RepositoryEngineeringDir)LicenseHeader.txt</GeneratePlatformNotSupportedAssemblyHeaderFile>
   </PropertyGroup>

src/libraries/Microsoft.Win32.Primitives/src/Microsoft.Win32.Primitives.csproj

@@ -1,13 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix;$(NetCoreAppCurrent)</TargetFrameworks>
     <Nullable>enable</Nullable>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="System\ComponentModel\Win32Exception.cs" />
   </ItemGroup>
-  <ItemGroup Condition=" '$(TargetsWindows)' == 'true'">
+  <ItemGroup Condition="'$(TargetsWindows)' == 'true'">
     <Compile Include="$(CommonPath)Interop\Windows\Interop.Libraries.cs"
              Link="Common\Interop\Windows\Interop.Libraries.cs" />
     <Compile Include="$(CommonPath)Interop\Windows\Kernel32\Interop.FormatMessage.cs"
@@ -21,6 +21,9 @@
     <Compile Include="$(CommonPath)Interop\Unix\Interop.Errors.cs"
              Link="Common\Interop\Unix\Interop.Errors.cs" />
   </ItemGroup>
+  <ItemGroup Condition="'$(TargetsAnyOS)' == 'true'">
+    <Compile Include="System\ComponentModel\Win32Exception.Default.cs" />
+  </ItemGroup>
   <ItemGroup>
     <Reference Include="System.Runtime" />
     <Reference Include="System.Runtime.InteropServices" />

src/libraries/Microsoft.Win32.Primitives/src/System/ComponentModel/Win32Exception.Default.cs

@@ -0,0 +1,11 @@
+// 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.
+
+namespace System.ComponentModel
+{
+    public partial class Win32Exception
+    {
+        private static string GetErrorMessage(int error) => $"The process failed with error code {error}";
+    }
+}

src/libraries/Microsoft.Win32.Primitives/tests/Microsoft.Win32.Primitives.Tests.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>$(NetCoreAppCurrent)</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix;$(NetCoreAppCurrent)</TargetFrameworks>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="Win32ExceptionTests.cs" />

src/libraries/Microsoft.Win32.Registry/src/Microsoft.Win32.Registry.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <DefineConstants>$(DefineConstants);REGISTRY_ASSEMBLY</DefineConstants>
-    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix;$(NetFrameworkCurrent)-Windows_NT;netstandard2.0-Windows_NT;netstandard2.0-Unix;netstandard2.0;net461-Windows_NT</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent);$(NetFrameworkCurrent)-Windows_NT;netstandard2.0-Windows_NT;netstandard2.0;net461-Windows_NT</TargetFrameworks>
     <ExcludeCurrentNetCoreAppFromPackage>true</ExcludeCurrentNetCoreAppFromPackage>
     <ExcludeCurrentFullFrameworkFromPackage>true</ExcludeCurrentFullFrameworkFromPackage>
     <NoWarn>$(NoWarn);CA2249</NoWarn>
@@ -11,10 +11,9 @@
   <!-- DesignTimeBuild requires all the TargetFramework Derived Properties to not be present in the first property group. -->
   <PropertyGroup>
     <IsPartialFacadeAssembly Condition="$(TargetFramework.StartsWith('net4'))">true</IsPartialFacadeAssembly>
-    <GeneratePlatformNotSupportedAssemblyMessage Condition="'$(TargetsAnyOS)' == 'true' and $(TargetFramework.StartsWith('netstandard'))">SR.PlatformNotSupported_Registry</GeneratePlatformNotSupportedAssemblyMessage>
-    <NoWarn Condition="'$(TargetsUnix)' == 'true'">$(NoWarn);CA1823</NoWarn> <!-- Avoid unused fields warnings in Unix build -->
+    <NoWarn Condition="'$(TargetsWindows)' != 'true'">$(NoWarn);CA1823</NoWarn> <!-- Avoid unused fields warnings in Unix build -->
   </PropertyGroup>
-  <ItemGroup Condition="!$(TargetFramework.StartsWith('net4')) and '$(TargetsAnyOS)' != 'true'">
+  <ItemGroup Condition="!$(TargetFramework.StartsWith('net4'))">
     <Compile Include="$(CommonPath)Interop\Windows\Advapi32\Interop.RegistryConstants.cs"
              Link="Common\Interop\Windows\Advapi32\Interop.RegistryConstants.cs" />
     <Compile Include="$(CoreLibSharedDir)Microsoft\Win32\SafeHandles\SafeRegistryHandle.cs"
@@ -70,7 +69,7 @@
              Link="Microsoft\Win32\SafeHandles\SafeRegistryHandle.Windows.cs" />
     <Compile Include="System\Security\AccessControl\RegistrySecurity.Windows.cs" />
   </ItemGroup>
-  <ItemGroup Condition="'$(TargetsUnix)' == 'true'">
+  <ItemGroup Condition="'$(TargetsWindows)' != 'true'">
     <Compile Include="Microsoft\Win32\RegistryKey.FileSystem.cs" />
     <Compile Include="Microsoft\Win32\SafeHandles\SafeRegistryHandle.FileSystem.cs" />
     <Compile Include="System\Security\AccessControl\RegistrySecurity.FileSystem.cs" />

src/libraries/OSGroups.json

@@ -3,9 +3,6 @@
     "Unix" : {
     },
     "Browser" : {
-      "#import": [
-        "Linux"
-      ]
     },
     "Linux": {
       "#import": [

src/libraries/System.Console/src/System.Console.csproj

@@ -1,7 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <RootNamespace>System.Console</RootNamespace>
-    <AssemblyName>System.Console</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix;$(NetCoreAppCurrent)-Android;$(NetCoreAppCurrent)-iOS;$(NetCoreAppCurrent)-tvOS;$(NetCoreAppCurrent)-Browser</TargetFrameworks>
     <Nullable>enable</Nullable>

src/libraries/System.Data.Odbc/ref/System.Data.Odbc.ODBC32.cs

@@ -0,0 +1,20 @@
+// 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.
+
+namespace System.Data.Odbc
+{
+    [System.Runtime.CompilerServices.TypeForwardedFrom("System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
+    public static class ODBC32
+    {
+        [System.Runtime.CompilerServices.TypeForwardedFrom("System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
+        public enum RETCODE : int
+        {
+            SUCCESS = 0,
+            SUCCESS_WITH_INFO = 1,
+            ERROR = -1,
+            INVALID_HANDLE = -2,
+            NO_DATA = 100,
+        }
+    }
+}

src/libraries/System.Data.Odbc/ref/System.Data.Odbc.cs

@@ -99,6 +99,9 @@ public override void Close() { }
         public new System.Data.Odbc.OdbcCommand CreateCommand() { throw null; }
         protected override System.Data.Common.DbCommand CreateDbCommand() { throw null; }
         protected override void Dispose(bool disposing) { }
+        public override System.Data.DataTable GetSchema() { throw null; }
+        public override System.Data.DataTable GetSchema(string collectionName) { throw null; }
+        public override System.Data.DataTable GetSchema(string collectionName, string[] restrictionValues) { throw null; }
         public override void Open() { }
         public static void ReleaseObjectPool() { }
         object System.ICloneable.Clone() { throw null; }

src/libraries/System.Data.Odbc/ref/System.Data.Odbc.csproj

@@ -8,6 +8,7 @@
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="System.Data.Odbc.cs" />
+    <Compile Include="System.Data.Odbc.ODBC32.cs" Condition="!$(TargetFramework.StartsWith('net4'))" />
   </ItemGroup>
   <ItemGroup Condition="$(TargetFramework.StartsWith('net4'))">
     <Reference Include="mscorlib" />

src/libraries/System.Data.Odbc/src/System.Data.Odbc.csproj

@@ -1,17 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;netcoreapp2.0-FreeBSD;netcoreapp2.0-Linux;netcoreapp2.0-OSX;netcoreapp2.0-Windows_NT;net461-Windows_NT;netstandard2.0;$(NetCoreAppCurrent)-FreeBSD;$(NetCoreAppCurrent)-illumos;$(NetCoreAppCurrent)-Solaris;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent)-OSX;$(NetCoreAppCurrent)-iOS;$(NetCoreAppCurrent)-tvOS;$(NetFrameworkCurrent)-Windows_NT</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-FreeBSD;$(NetCoreAppCurrent)-illumos;$(NetCoreAppCurrent)-Solaris;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent)-OSX;$(NetCoreAppCurrent)-iOS;$(NetCoreAppCurrent)-tvOS;$(NetCoreAppCurrent);netcoreapp2.0-FreeBSD;netcoreapp2.0-Linux;netcoreapp2.0-OSX;netcoreapp2.0-Windows_NT;netstandard2.0;net461-Windows_NT;$(NetFrameworkCurrent)-Windows_NT</TargetFrameworks>
     <ExcludeCurrentNetCoreAppFromPackage>true</ExcludeCurrentNetCoreAppFromPackage>
     <ExcludeCurrentFullFrameworkFromPackage>true</ExcludeCurrentFullFrameworkFromPackage>
     <NoWarn>$(NoWarn);CA2249</NoWarn>
   </PropertyGroup>
   <!-- DesignTimeBuild requires all the TargetFramework Derived Properties to not be present in the first property group. -->
   <PropertyGroup>
     <IsPartialFacadeAssembly Condition="$(TargetFramework.StartsWith('net4'))">true</IsPartialFacadeAssembly>
-    <GeneratePlatformNotSupportedAssemblyMessage Condition="'$(TargetFramework)' == 'netstandard2.0'">SR.Odbc_PlatformNotSupported</GeneratePlatformNotSupportedAssemblyMessage>
+    <!-- https://github.com/dotnet/arcade/issues/5717 -->
+    <NoWarn Condition="'$(TargetFramework)' == '$(NetCoreAppCurrent)' and '$(TargetsAnyOS)' == 'true'">$(NoWarn);SA1121</NoWarn>
+    <GeneratePlatformNotSupportedAssemblyMessage Condition="'$(TargetFramework)' == 'netstandard2.0' or '$(TargetsAnyOS)' == 'true'">SR.Odbc_PlatformNotSupported</GeneratePlatformNotSupportedAssemblyMessage>
   </PropertyGroup>
-  <ItemGroup Condition="$(TargetFramework.StartsWith('$(NetCoreAppCurrent)')) or $(TargetFramework.StartsWith('netcoreapp2.0'))">
+  <ItemGroup Condition="($(TargetFramework.StartsWith('$(NetCoreAppCurrent)')) or $(TargetFramework.StartsWith('netcoreapp2.0'))) and '$(TargetsAnyOS)' != 'true'">
     <Compile Include="$(CommonPath)System\Data\Common\AdapterUtil.cs"
              Link="Common\System\Data\Common\AdapterUtil.cs" />
     <Compile Include="$(CommonPath)System\Data\Common\AdapterUtil.Drivers.cs"

src/libraries/System.Diagnostics.FileVersionInfo/src/Resources/Strings.resx

@@ -119,4 +119,7 @@
   <data name="IO_FileNotFound_FileName" xml:space="preserve">
     <value>Could not find file '{0}'.</value>
   </data>
+  <data name="DiagnosticsFileVersionInfo_PlatformNotSupported" xml:space="preserve">
+    <value>System.Diagnostics.FileVersionInfo is not supported on this platform.</value>
+  </data>
 </root>

src/libraries/System.Diagnostics.FileVersionInfo/src/System.Diagnostics.FileVersionInfo.csproj

@@ -2,13 +2,17 @@
   <PropertyGroup>
     <AssemblyName>System.Diagnostics.FileVersionInfo</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix;$(NetCoreAppCurrent)</TargetFrameworks>
     <Nullable>enable</Nullable>
   </PropertyGroup>
-  <ItemGroup>
+  <!-- DesignTimeBuild requires all the TargetFramework Derived Properties to not be present in the first property group. -->
+  <PropertyGroup>
+    <GeneratePlatformNotSupportedAssemblyMessage Condition="'$(TargetsAnyOS)' == 'true'">SR.DiagnosticsFileVersionInfo_PlatformNotSupported</GeneratePlatformNotSupportedAssemblyMessage> 
+  </PropertyGroup>
+  <ItemGroup Condition="'$(TargetsAnyOS)' != 'true'">
     <Compile Include="System\Diagnostics\FileVersionInfo.cs" />
   </ItemGroup>
-  <ItemGroup Condition=" '$(TargetsWindows)' == 'true'">
+  <ItemGroup Condition="'$(TargetsWindows)' == 'true'">
     <Compile Include="System\Diagnostics\FileVersionInfo.Windows.cs" />
     <Compile Include="$(CommonPath)Interop\Windows\Interop.Libraries.cs"
              Link="Common\Interop\Windows\Interop.Libraries.cs" />

src/libraries/System.Diagnostics.Process/src/Resources/Strings.resx

@@ -245,6 +245,9 @@
   <data name="ProcessStartSingleFeatureNotSupported" xml:space="preserve">
     <value>The {0} property is not supported on this platform.</value>
   </data>
+  <data name="Process_PlatformNotSupported" xml:space="preserve">
+    <value>System.Diagnostics.Process is not supported on this platform</value>
+  </data>
   <data name="RUsageFailure" xml:space="preserve">
     <value>Failed to set or retrieve rusage information. See the error code for OS-specific error information.</value>
   </data>

src/libraries/System.Diagnostics.Process/src/System.Diagnostics.Process.csproj

@@ -3,12 +3,15 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <DefineConstants>$(DefineConstants);FEATURE_REGISTRY</DefineConstants>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-FreeBSD;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent)-OSX;$(NetCoreAppCurrent)-iOS;$(NetCoreAppCurrent)-tvOS</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-FreeBSD;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent);$(NetCoreAppCurrent)-OSX;$(NetCoreAppCurrent)-iOS;$(NetCoreAppCurrent)-tvOS</TargetFrameworks>
     <Nullable>enable</Nullable>
     <!-- Suppress unused field warnings when using PlatformNotSupportedException stubs -->
     <NoWarn Condition=" '$(TargetsFreeBSD)' == 'true' or '$(TargetsUnknownUnix)' == 'true' ">$(NoWarn);0649</NoWarn>
   </PropertyGroup>
-  <ItemGroup>
+  <PropertyGroup>
+    <GeneratePlatformNotSupportedAssemblyMessage Condition="'$(TargetsAnyOS)' == 'true'">SR.Process_PlatformNotSupported</GeneratePlatformNotSupportedAssemblyMessage>
+  </PropertyGroup>
+  <ItemGroup Condition="'$(TargetsAnyOS)' != 'true'">
     <Compile Include="Microsoft\Win32\SafeHandles\SafeProcessHandle.cs" />
     <Compile Include="System\Collections\Specialized\DictionaryWrapper.cs" />
     <Compile Include="System\Diagnostics\AsyncStreamReader.cs" />
@@ -302,7 +305,7 @@
     <Compile Include="System\Diagnostics\ProcessManager.Win32.cs" />
     <Compile Include="System\Diagnostics\ProcessStartInfo.Win32.cs" />
   </ItemGroup>
-  <ItemGroup>
+  <ItemGroup Condition="'$(TargetsAnyOS)' != 'true'">
     <Compile Include="System\Diagnostics\Process.NonUap.cs" />
   </ItemGroup>
   <ItemGroup Condition=" '$(TargetsFreeBSD)' == 'true'">

src/libraries/System.Diagnostics.Process/tests/System.Diagnostics.Process.Tests.csproj

@@ -37,7 +37,7 @@
     <Compile Include="$(CoreLibSharedDir)System\PasteArguments.Windows.cs"
              Link="System\PasteArguments.Windows.cs" />
   </ItemGroup>
-  <ItemGroup Condition=" '$(TargetsUnix)' == 'true' ">
+  <ItemGroup Condition="'$(TargetsUnix)' == 'true'">
     <Compile Include="ProcessTests.Unix.cs" />
     <Compile Include="ProcessThreadTests.Unix.cs" />
     <Compile Include="$(CoreLibSharedDir)System\PasteArguments.Unix.cs"

src/libraries/System.Diagnostics.TextWriterTraceListener/src/System.Diagnostics.TextWriterTraceListener.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <RootNamespace>System.Diagnostics.TextWriterTraceListener</RootNamespace>
     <AssemblyName>System.Diagnostics.TextWriterTraceListener</AssemblyName>
-    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix;$(NetCoreAppCurrent)-Browser</TargetFrameworks>
     <Nullable>enable</Nullable>
   </PropertyGroup>
   <ItemGroup>
@@ -13,15 +13,15 @@
     <Compile Include="$(CommonPath)System\Diagnostics\TraceListenerHelpers.cs"
              Link="Common\System\Diagnostics\TraceListenerHelpers.cs" />
   </ItemGroup>
-  <ItemGroup Condition=" '$(TargetsWindows)' == 'true'">
+  <ItemGroup Condition="'$(TargetsWindows)' == 'true'">
     <Compile Include="$(CommonPath)System\Diagnostics\TraceListenerHelpers.Windows.cs"
              Link="Common\System\Diagnostics\TraceListenerHelpers.Windows.cs" />
     <Compile Include="$(CommonPath)Interop\Windows\Interop.Libraries.cs"
              Link="Common\Interop\Windows\Interop.Libraries.cs" />
     <Compile Include="$(CommonPath)Interop\Windows\Kernel32\Interop.GetCurrentProcessId.cs"
              Link="Common\Interop\Windows\Interop.GetCurrentProcessId.cs" />
   </ItemGroup>
-  <ItemGroup Condition=" '$(TargetsUnix)' == 'true'">
+  <ItemGroup Condition="'$(TargetsUnix)' == 'true' or '$(TargetsBrowser)' == 'true'">
     <Compile Include="$(CommonPath)Interop\Unix\Interop.Libraries.cs"
              Link="Common\Interop\Unix\Interop.Libraries.cs" />
     <Compile Include="$(CommonPath)Interop\Unix\System.Native\Interop.GetPid.cs"

src/libraries/System.Diagnostics.TraceSource/src/System.Diagnostics.TraceSource.csproj

@@ -1,9 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <RootNamespace>System.Diagnostics.TraceSource</RootNamespace>
-    <AssemblyName>System.Diagnostics.TraceSource</AssemblyName>
     <DefineConstants>$(DefineConstants);TRACE</DefineConstants>
-    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-FreeBSD;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent)-OSX;$(NetCoreAppCurrent)-iOS</TargetFrameworks>
+    <TargetFrameworks>$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix;$(NetCoreAppCurrent)-Browser</TargetFrameworks>
     <Nullable>enable</Nullable>
   </PropertyGroup>
   <ItemGroup>
@@ -40,7 +38,7 @@
     <Compile Include="$(CommonPath)Interop\Windows\Kernel32\Interop.GetCurrentProcessId.cs"
              Link="Common\Interop\Windows\Interop.GetCurrentProcessId.cs" />
   </ItemGroup>
-  <ItemGroup Condition=" '$(TargetsUnix)' == 'true'">
+  <ItemGroup Condition=" '$(TargetsUnix)' == 'true' or '$(TargetsBrowser)' == 'true'">
     <Compile Include="$(CommonPath)Interop\Unix\Interop.Libraries.cs"
              Link="Common\Interop\Unix\Interop.Libraries.cs" />
     <Compile Include="$(CommonPath)Interop\Unix\System.Native\Interop.GetPid.cs"