Add Mac Catalyst (iOS API, Mac ABI) runtime

Directory.Build.props

@@ -17,7 +17,7 @@
     <TargetOS Condition="'$(TargetOS)' == '' and $([MSBuild]::IsOSPlatform('SOLARIS'))">Solaris</TargetOS>
     <TargetOS Condition="'$(TargetOS)' == '' and $([MSBuild]::IsOSUnixLike())">Linux</TargetOS>
     <TargetOS Condition="'$(TargetOS)' == '' and $([MSBuild]::IsOSPlatform('WINDOWS'))">windows</TargetOS>
-    <TargetsMobile Condition="'$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'Android' or '$(TargetOS)' == 'tvOS' or '$(TargetOS)' == 'Browser'">true</TargetsMobile>
+    <TargetsMobile Condition="'$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'Android' or '$(TargetOS)' == 'MacCatalyst' or '$(TargetOS)' == 'tvOS' or '$(TargetOS)' == 'Browser'">true</TargetsMobile>
   </PropertyGroup>
 
   <!-- Platform property is required by RepoLayout.props in Arcade SDK. -->
@@ -117,6 +117,7 @@
     <_portableOS Condition="'$(_runtimeOSFamily)' == 'illumos'">illumos</_portableOS>
     <_portableOS Condition="'$(_runtimeOSFamily)' == 'Solaris'">solaris</_portableOS>
     <_portableOS Condition="'$(_runtimeOS)' == 'Browser'">browser</_portableOS>
+    <_portableOS Condition="'$(_runtimeOS)' == 'maccatalyst'">maccatalyst</_portableOS>
     <_portableOS Condition="'$(_runtimeOS)' == 'ios'">ios</_portableOS>
     <_portableOS Condition="'$(_runtimeOS)' == 'tvos'">tvos</_portableOS>
     <_portableOS Condition="'$(_runtimeOS)' == 'android'">android</_portableOS>
@@ -145,7 +146,7 @@
     <_toolRuntimeRID Condition="'$(_runtimeOS)' == 'android' and $([MSBuild]::IsOSPlatform('OSX'))">osx-x64</_toolRuntimeRID>
 
     <!-- There are no iOS or tvOS tools and it can be built on OSX only, so use that -->
-    <_toolRuntimeRID Condition="'$(_runtimeOS)' == 'ios' or '$(_runtimeOS)' == 'tvos'">osx-x64</_toolRuntimeRID>
+    <_toolRuntimeRID Condition="'$(_runtimeOS)' == 'maccatalyst' or '$(_runtimeOS)' == 'ios' or '$(_runtimeOS)' == 'tvos'">osx-x64</_toolRuntimeRID>
 
     <MicrosoftNetCoreIlasmPackageRuntimeId>$(_toolRuntimeRID)</MicrosoftNetCoreIlasmPackageRuntimeId>
 
@@ -160,6 +161,7 @@
     <_outputRID Condition="'$(TargetOS)' == 'NetBSD'">netbsd-$(TargetArchitecture)</_outputRID>
     <_outputRID Condition="'$(TargetOS)' == 'illumos'">illumos-$(TargetArchitecture)</_outputRID>
     <_outputRID Condition="'$(TargetOS)' == 'Solaris'">solaris-$(TargetArchitecture)</_outputRID>
+    <_outputRID Condition="'$(TargetOS)' == 'MacCatalyst'">maccatalyst-$(TargetArchitecture)</_outputRID>
     <_outputRID Condition="'$(TargetOS)' == 'iOS'">ios-$(TargetArchitecture)</_outputRID>
     <_outputRID Condition="'$(TargetOS)' == 'tvOS'">tvos-$(TargetArchitecture)</_outputRID>
     <_outputRID Condition="'$(TargetOS)' == 'Android'">android-$(TargetArchitecture)</_outputRID>
@@ -176,14 +178,15 @@
     <TargetsLinux Condition="'$(TargetOS)' == 'Linux' or '$(TargetOS)' == 'Android'">true</TargetsLinux>
     <TargetsNetBSD Condition="'$(TargetOS)' == 'NetBSD'">true</TargetsNetBSD>
     <TargetsOSX Condition="'$(TargetOS)' == 'OSX'">true</TargetsOSX>
+    <TargetsMacCatalyst Condition="'$(TargetOS)' == 'MacCatalyst'">true</TargetsMacCatalyst>
     <TargetsiOS Condition="'$(TargetOS)' == 'iOS'">true</TargetsiOS>
     <TargetstvOS Condition="'$(TargetOS)' == 'tvOS'">true</TargetstvOS>
     <TargetsiOSSimulator Condition="'$(TargetsiOS)' == 'true' and ('$(TargetArchitecture)' == 'x64' or '$(TargetArchitecture)' == 'x86')">true</TargetsiOSSimulator>
     <TargetstvOSSimulator Condition="'$(TargetstvOS)' == 'true' and '$(TargetArchitecture)' == 'x64'">true</TargetstvOSSimulator>
     <TargetsAndroid Condition="'$(TargetOS)' == 'Android'">true</TargetsAndroid>
     <TargetsBrowser Condition="'$(TargetOS)' == 'Browser'">true</TargetsBrowser>
     <TargetsWindows Condition="'$(TargetOS)' == 'windows'">true</TargetsWindows>
-    <TargetsUnix Condition="'$(TargetsFreeBSD)' == 'true' or '$(Targetsillumos)' == 'true' or '$(TargetsSolaris)' == 'true' or '$(TargetsLinux)' == 'true' or '$(TargetsNetBSD)' == 'true' or '$(TargetsOSX)' == 'true' or '$(TargetstvOS)' == 'true' or '$(TargetsiOS)' == 'true' or '$(TargetsAndroid)' == 'true'">true</TargetsUnix>
+    <TargetsUnix Condition="'$(TargetsFreeBSD)' == 'true' or '$(Targetsillumos)' == 'true' or '$(TargetsSolaris)' == 'true' or '$(TargetsLinux)' == 'true' or '$(TargetsNetBSD)' == 'true' or '$(TargetsOSX)' == 'true' or '$(TargetsMacCatalyst)' == 'true' or '$(TargetstvOS)' == 'true' or '$(TargetsiOS)' == 'true' or '$(TargetsAndroid)' == 'true'">true</TargetsUnix>
   </PropertyGroup>
 
   <!--Feature switches -->

eng/build.sh

@@ -28,7 +28,7 @@ usage()
   echo "  --help (-h)                     Print help and exit."
   echo "  --librariesConfiguration (-lc)  Libraries build configuration: Debug or Release."
   echo "                                  [Default: Debug]"
-  echo "  --os                            Target operating system: windows, Linux, FreeBSD, OSX, tvOS, iOS, Android,"
+  echo "  --os                            Target operating system: windows, Linux, FreeBSD, OSX, MacCatalyst, tvOS, iOS, Android,"
   echo "                                  Browser, NetBSD, illumos or Solaris."
   echo "                                  [Default: Your machine's OS.]"
   echo "  --projects <value>              Project or solution file(s) to build."
@@ -262,6 +262,8 @@ while [[ $# > 0 ]]; do
           os="FreeBSD" ;;
         osx)
           os="OSX" ;;
+        maccatalyst)
+          os="MacCatalyst" ;;
         tvos)
           os="tvOS" ;;
         ios)
@@ -276,7 +278,7 @@ while [[ $# > 0 ]]; do
           os="Solaris" ;;
         *)
           echo "Unsupported target OS '$2'."
-          echo "The allowed values are windows, Linux, FreeBSD, OSX, tvOS, iOS, Android, Browser, illumos and Solaris."
+          echo "The allowed values are windows, Linux, FreeBSD, OSX, MacCatalyst, tvOS, iOS, Android, Browser, illumos and Solaris."
           exit 1
           ;;
       esac

eng/native/build-commons.sh

@@ -78,7 +78,7 @@ build_native()
     # All set to commence the build
     echo "Commencing build of \"$message\" for $__TargetOS.$__BuildArch.$__BuildType in $intermediatesDir"
 
-    if [[ "$targetOS" == OSX ]]; then
+    if [[ "$targetOS" == OSX || "$targetOS" == MacCatalyst ]]; then
         if [[ "$platformArch" == x64 ]]; then
             cmakeArgs="-DCMAKE_OSX_ARCHITECTURES=\"x86_64\" $cmakeArgs"
         elif [[ "$platformArch" == arm64 ]]; then
@@ -89,6 +89,10 @@ build_native()
         fi
     fi
 
+    if [[ "$targetOS" == MacCatalyst ]]; then
+        cmakeArgs="-DCLR_CMAKE_TARGET_CATALYST=1 $cmakeArgs"
+    fi
+
     if [[ "$__UseNinja" == 1 ]]; then
         generator="ninja"
         buildTool="$(command -v ninja || command -v ninja-build)"

eng/native/configurecompiler.cmake

@@ -386,19 +386,33 @@ if (CLR_CMAKE_HOST_UNIX)
 
   # Specify the minimum supported version of macOS
   if(CLR_CMAKE_HOST_OSX)
-    if(CLR_CMAKE_HOST_ARCH_ARM64)
-      # 'pthread_jit_write_protect_np' is only available on macOS 11.0 or newer
-      set(MACOS_VERSION_MIN_FLAGS -mmacosx-version-min=11.0)
-      add_compile_options(-arch arm64)
-    elseif(CLR_CMAKE_HOST_ARCH_AMD64)
-      set(MACOS_VERSION_MIN_FLAGS -mmacosx-version-min=10.13)
-      add_compile_options(-arch x86_64)
+    # Mac Catalyst needs a special CFLAG, exclusive with mmacosx-version-min
+    if(CLR_CMAKE_TARGET_CATALYST)
+      if(CLR_CMAKE_HOST_ARCH_ARM64)
+        add_compile_options(-target arm64-apple-ios13.2-macabi)
+        add_link_options(-target arm64-apple-ios13.2-macabi)
+      elseif(CLR_CMAKE_HOST_ARCH_AMD64)
+        add_compile_options(-target x86_64-apple-ios13.2-macabi)
+        add_link_options(-target x86_64-apple-ios13.2-macabi)
+      else()
+        clr_unknown_arch()
+      endif()
     else()
-      clr_unknown_arch()
-    endif()
-    add_compile_options(${MACOS_VERSION_MIN_FLAGS})
-    add_linker_flag(${MACOS_VERSION_MIN_FLAGS})
+      if(CLR_CMAKE_HOST_ARCH_ARM64)
+        # 'pthread_jit_write_protect_np' is only available on macOS 11.0 or newer
+        set(MACOS_VERSION_MIN_FLAGS -mmacosx-version-min=11.0)
+        add_compile_options(-arch arm64)
+      elseif(CLR_CMAKE_HOST_ARCH_AMD64)
+        set(MACOS_VERSION_MIN_FLAGS -mmacosx-version-min=10.13)
+        add_compile_options(-arch x86_64)
+      else()
+        clr_unknown_arch()
+      endif()
+      add_compile_options(${MACOS_VERSION_MIN_FLAGS})
+      add_linker_flag(${MACOS_VERSION_MIN_FLAGS})
+    endif(CLR_CMAKE_TARGET_CATALYST)
   endif(CLR_CMAKE_HOST_OSX)
+
 endif(CLR_CMAKE_HOST_UNIX)
 
 if(CLR_CMAKE_TARGET_UNIX)

eng/native/configureplatform.cmake

@@ -305,6 +305,11 @@ if(CLR_CMAKE_TARGET_OS STREQUAL iOS)
     set(CLR_CMAKE_TARGET_IOS 1)
 endif(CLR_CMAKE_TARGET_OS STREQUAL iOS)
 
+if(CLR_CMAKE_TARGET_OS STREQUAL MacCatalyst)
+    set(CLR_CMAKE_TARGET_UNIX 1)
+    set(CLR_CMAKE_TARGET_CATALYST 1)
+endif(CLR_CMAKE_TARGET_OS STREQUAL MacCatalyst)
+
 if(CLR_CMAKE_TARGET_OS STREQUAL tvOS)
     set(CLR_CMAKE_TARGET_UNIX 1)
     set(CLR_CMAKE_TARGET_TVOS 1)

eng/native/configuretools.cmake

@@ -47,7 +47,7 @@ if(NOT WIN32 AND NOT CLR_CMAKE_TARGET_BROWSER)
     locate_toolchain_exec(link CMAKE_LINKER)
   endif()
 
-  if(NOT CLR_CMAKE_TARGET_OSX AND NOT CLR_CMAKE_TARGET_IOS AND NOT CLR_CMAKE_TARGET_TVOS AND (NOT CLR_CMAKE_TARGET_ANDROID OR CROSS_ROOTFS))
+  if(NOT CLR_CMAKE_TARGET_OSX AND NOT CLR_CMAKE_TARGET_CATALYST AND NOT CLR_CMAKE_TARGET_IOS AND NOT CLR_CMAKE_TARGET_TVOS AND (NOT CLR_CMAKE_TARGET_ANDROID OR CROSS_ROOTFS))
     locate_toolchain_exec(objdump CMAKE_OBJDUMP)
 
     if(CLR_CMAKE_TARGET_ANDROID)

eng/native/functions.cmake

@@ -211,7 +211,7 @@ function(generate_exports_file)
   list(GET INPUT_LIST -1 outputFilename)
   list(REMOVE_AT INPUT_LIST -1)
 
-  if(CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS)
+  if(CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_CATALYST OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS)
     set(SCRIPT_NAME generateexportedsymbols.sh)
   else()
     set(SCRIPT_NAME generateversionscript.sh)
@@ -252,7 +252,7 @@ function(strip_symbols targetName outputFilename)
   if (CLR_CMAKE_HOST_UNIX)
     set(strip_source_file $<TARGET_FILE:${targetName}>)
 
-    if (CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS)
+    if (CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_CATALYST OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS)
       set(strip_destination_file ${strip_source_file}.dwarf)
 
       # Ensure that dsymutil and strip are present
@@ -281,7 +281,7 @@ function(strip_symbols targetName outputFilename)
         COMMAND ${strip_command}
         COMMENT "Stripping symbols from ${strip_source_file} into file ${strip_destination_file}"
         )
-    else (CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS)
+    else (CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_CATALYST OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS)
       set(strip_destination_file ${strip_source_file}.dbg)
 
       add_custom_command(
@@ -293,7 +293,7 @@ function(strip_symbols targetName outputFilename)
         COMMAND ${CMAKE_OBJCOPY} --add-gnu-debuglink=${strip_destination_file} ${strip_source_file}
         COMMENT "Stripping symbols from ${strip_source_file} into file ${strip_destination_file}"
         )
-    endif (CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS)
+    endif (CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_CATALYST OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS)
 
     set(${outputFilename} ${strip_destination_file} PARENT_SCOPE)
   else(CLR_CMAKE_HOST_UNIX)
@@ -316,7 +316,7 @@ function(install_with_stripped_symbols targetName kind destination)
       install_symbols(${symbol_file} ${destination})
     endif()
 
-    if ((CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS) AND ("${kind}" STREQUAL "TARGETS"))
+    if ((CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_CATALYST OR CLR_CMAKE_TARGET_IOS OR CLR_CMAKE_TARGET_TVOS) AND ("${kind}" STREQUAL "TARGETS"))
       # We want to avoid the kind=TARGET install behaviors which corrupt code signatures on osx-arm64
       set(kind PROGRAMS)
     endif()

eng/native/init-distro-rid.sh

@@ -170,6 +170,8 @@ initDistroRidGlobal()
                 distroRid="linux-$buildArch"
             elif [ "$targetOs" = "OSX" ]; then
                 distroRid="osx-$buildArch"
+            elif [ "$targetOs" = "MacCatalyst" ]; then
+                distroRid="maccatalyst-$buildArch"
             elif [ "$targetOs" = "tvOS" ]; then
                 distroRid="tvos-$buildArch"
             elif [ "$targetOs" = "iOS" ]; then

eng/targetframeworksuffix.props

@@ -46,6 +46,13 @@
         <PackageTargetRuntime>osx</PackageTargetRuntime>
       </PropertyGroup>
     </When>
+    <When Condition="'$(TargetFrameworkSuffix)' == 'MacCatalyst'">
+      <PropertyGroup>
+        <TargetsUnix>true</TargetsUnix>
+        <TargetsMacCatalyst>true</TargetsMacCatalyst>
+        <PackageTargetRuntime>maccatalyst</PackageTargetRuntime>
+      </PropertyGroup>
+    </When>
     <When Condition="'$(TargetFrameworkSuffix)' == 'tvOS'">
       <PropertyGroup>
         <TargetsUnix>true</TargetsUnix>

eng/testing/AppleRunnerTemplate.sh

@@ -16,6 +16,8 @@ if [ -n "$5" ]; then
     EXPECTED_EXIT_CODE="--expected-exit-code $5"
 fi
 
+if [[ "$TARGET_OS" == "MacCatalyst" ]]; then TARGET=maccatalyst; fi
+
 if [[ "$TARGET_OS" == "iOS" && "$TARGET_ARCH" == "x86" ]]; then TARGET=ios-simulator-32; fi
 if [[ "$TARGET_OS" == "iOS" && "$TARGET_ARCH" == "x64" ]]; then TARGET=ios-simulator-64; fi
 if [[ "$TARGET_OS" == "iOS" && "$TARGET_ARCH" == "arm" ]]; then TARGET=ios-device; fi
@@ -29,6 +31,7 @@ if [[ "$TARGET" == "ios-simulator-"* ]]; then SCHEME_SDK=Release-iphonesimulator
 if [[ "$TARGET" == "tvos-simulator" ]]; then SCHEME_SDK=Release-appletvsimulator; fi
 if [[ "$TARGET" == "ios-device" ]]; then SCHEME_SDK=Release-iphoneos; fi
 if [[ "$TARGET" == "tvos-device" ]]; then SCHEME_SDK=Release-appletvos; fi
+if [[ "$TARGET" == "maccatalyst" ]]; then SCHEME_SDK=Release-maccatalyst; fi
 
 cd $EXECUTION_DIR
 

eng/testing/tests.mobile.targets

@@ -77,17 +77,21 @@
   </Target>
 
   <!-- Generate a self-contained app bundle for iOS with tests. -->
-  <UsingTask Condition="'$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'"
+  <UsingTask Condition="'$(TargetOS)' == 'MacCatalyst' or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'"
              TaskName="AppleAppBuilderTask"
              AssemblyFile="$(AppleAppBuilderTasksAssemblyPath)" />
   <UsingTask TaskName="MonoAOTCompiler"
              AssemblyFile="$(MonoAOTCompilerTasksAssemblyPath)" />
 
   <Import Project="$(MonoAOTCompilerDir)MonoAOTCompiler.props" />
 
-  <Target Condition="'$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" Name="BundleTestAppleApp">
+  <PropertyGroup>
+    <DevTeamProvisioning Condition="'$(TargetOS)' == 'MacCatalyst' and '$(DevTeamProvisioning)' == ''">-</DevTeamProvisioning>
+  </PropertyGroup>
+
+  <Target Condition="'$(TargetOS)' == 'MacCatalyst' or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" Name="BundleTestAppleApp">
     <Error Condition="!Exists('$(MicrosoftNetCoreAppRuntimePackRidDir)')" Text="MicrosoftNetCoreAppRuntimePackRidDir=$(MicrosoftNetCoreAppRuntimePackRidDir) doesn't exist" />
-    <Error Condition="('$(TargetArchitecture)' == 'arm64' or '$(TargetArchitecture)' == 'arm') and '$(DevTeamProvisioning)' == ''"
+    <Error Condition="('$(TargetArchitecture)' == 'arm64' or '$(TargetArchitecture)' == 'arm' or '$(TargetOS)' == 'MacCatalyst') and '$(DevTeamProvisioning)' == ''"
            Text="'DevTeamProvisioning' needs to be set for device builds. Set it to 'UBF8T346G9' if you're part of the Microsoft team account." />
     <Error Condition="'$(TestArchiveTestsDir)' == ''" Text="TestArchiveTestsDir property to archive the test folder must be set." />
 
@@ -217,7 +221,7 @@
           AfterTargets="ComputeResolvedFilesToPublishList">
     <ItemGroup>
       <_runnerFilesToPublish Include="$(AndroidTestRunnerDir)*" Condition="'$(TargetOS)' == 'Android'" />
-      <_runnerFilesToPublish Include="$(AppleTestRunnerDir)*" Condition="'$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" />
+      <_runnerFilesToPublish Include="$(AppleTestRunnerDir)*" Condition="'$(TargetOS)' == 'MacCatalyst' or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" />
       <_runnerFilesToPublish Include="$(WasmTestRunnerDir)*" Condition="'$(TargetOS)' == 'Browser'" />
 
       <ResolvedFileToPublish Include="@(_runnerFilesToPublish)" RelativePath="%(FileName)%(Extension)" CopyToPublishDirectory="PreserveNewest" PostprocessAssembly="true" />

eng/testing/tests.targets

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <RunScriptInputName Condition="'$(TargetOS)' == 'windows'">RunnerTemplate.cmd</RunScriptInputName>
     <RunScriptInputName Condition="'$(TargetOS)' != 'windows'">RunnerTemplate.sh</RunScriptInputName>
-    <RunScriptInputName Condition="'$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'">AppleRunnerTemplate.sh</RunScriptInputName>
+    <RunScriptInputName Condition="'$(TargetOS)' == 'MacCatalyst' or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'">AppleRunnerTemplate.sh</RunScriptInputName>
     <RunScriptInputName Condition="'$(TargetOS)' == 'Android'">AndroidRunnerTemplate.sh</RunScriptInputName>
     <RunScriptInputName Condition="'$(TargetOS)' == 'Browser'">WasmRunnerTemplate.sh</RunScriptInputName>
 

src/installer/tests/Assets/TestUtils/TestProjects.targets

@@ -17,7 +17,7 @@
       LatestRuntimeFrameworkVersion="6.0.0-alpha.1.20602.4"
       RuntimeFrameworkName="Microsoft.NETCore.App"
       RuntimePackNamePatterns="Microsoft.NETCore.App.Runtime.**RID**"
-      RuntimePackRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;osx-arm64;rhel.6-x64;tizen.4.0.0-armel;tizen.5.0.0-armel;win-arm;win-arm64;win-x64;win-x86;ios-arm64;ios-arm;ios-x64;ios-x86;tvos-arm64;tvos-x64;android-arm64;android-arm;android-x64;android-x86;browser-wasm"
+      RuntimePackRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;osx-arm64;rhel.6-x64;tizen.4.0.0-armel;tizen.5.0.0-armel;win-arm;win-arm64;win-x64;win-x86;maccatalyst-x64;maccatalyst-arm64;ios-arm64;ios-arm;ios-x64;ios-x86;tvos-arm64;tvos-x64;android-arm64;android-arm;android-x64;android-x86;browser-wasm"
       TargetFramework="net6.0"
       TargetingPackName="Microsoft.NETCore.App.Ref"
       TargetingPackVersion="6.0.0-alpha.1.20602.4" />

src/libraries/Common/tests/TestUtilities/System/PlatformDetection.cs

@@ -28,6 +28,7 @@ public static partial class PlatformDetection
         public static bool IsNetBSD => RuntimeInformation.IsOSPlatform(OSPlatform.Create("NETBSD"));
         public static bool IsiOS => RuntimeInformation.IsOSPlatform(OSPlatform.Create("IOS"));
         public static bool IstvOS => RuntimeInformation.IsOSPlatform(OSPlatform.Create("TVOS"));
+        public static bool IsMacCatalyst => RuntimeInformation.IsOSPlatform(OSPlatform.Create("MACCATALYST"));
         public static bool Isillumos => RuntimeInformation.IsOSPlatform(OSPlatform.Create("ILLUMOS"));
         public static bool IsSolaris => RuntimeInformation.IsOSPlatform(OSPlatform.Create("SOLARIS"));
         public static bool IsBrowser => RuntimeInformation.IsOSPlatform(OSPlatform.Create("BROWSER"));
@@ -132,7 +133,7 @@ public static bool IsNonZeroLowerBoundArraySupported
             (IsOpenSslSupported &&
             (OpenSslVersion.Major >= 1 && (OpenSslVersion.Minor >= 1 || OpenSslVersion.Build >= 2)));
 
-        public static bool SupportsClientAlpn => SupportsAlpn || IsOSX || IsiOS || IstvOS;
+        public static bool SupportsClientAlpn => SupportsAlpn || IsOSX || IsMacCatalyst || IsiOS || IstvOS;
 
         private static Lazy<bool> s_supportsTls10 = new Lazy<bool>(GetTls10Support);
         private static Lazy<bool> s_supportsTls11 = new Lazy<bool>(GetTls11Support);
@@ -339,7 +340,7 @@ private static bool GetTls13Support()
                 // The build number is approximation.
                 return IsWindows10Version2004Build19573OrGreater;
             }
-            else if (IsOSX || IsiOS || IstvOS)
+            else if (IsOSX || IsMacCatalyst || IsiOS || IstvOS)
             {
                 // [ActiveIssue("https://github.com/dotnet/runtime/issues/1979")]
                 return false;