Make TraceEvent and FastSerialization AOT-compatible

src/Directory.Packages.props

@@ -18,6 +18,7 @@
     <PackageVersion Include="Azure.Core" Version="1.38.0" />
     <PackageVersion Include="Azure.Identity" Version="1.11.4" />
     <PackageVersion Include="MicroBuild.Core" Version="0.3.1" />
+    <PackageVersion Include="PolySharp" Version="1.14.1" />
     <PackageVersion Include="Microsoft.Diagnostics.NETCore.Client" Version="0.2.510501" />
     <PackageVersion Include="Microsoft.Identity.Client" Version="4.61.3" />
     <PackageVersion Include="Microsoft.Identity.Client.Extensions.Msal" Version="4.61.3" />

src/FastSerialization/FastSerialization.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net9.0;netstandard2.0</TargetFrameworks>
     <RootNamespace>Microsoft.Diagnostics.FastSerialization</RootNamespace>
     <AssemblyName>Microsoft.Diagnostics.FastSerialization</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
@@ -14,6 +14,9 @@
     <Version>$(FastSerializationVersion)</Version>
     <FileVersion>$(FastSerializationVersion)</FileVersion>
     <InformationalVersion>$(FastSerializationVersion)</InformationalVersion>
+    <IsAotCompatible Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net7.0'))">true</IsAotCompatible>
+    <PolySharpIncludeRuntimeSupportedAttributes>true</PolySharpIncludeRuntimeSupportedAttributes>
+    <LangVersion>9.0</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -27,6 +30,10 @@
   <ItemGroup>
     <!-- *** SourceLink Support *** -->
     <PackageReference Include="Microsoft.SourceLink.GitHub" PrivateAssets="All" />
+    <PackageReference Include="PolySharp">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
   </ItemGroup>
 
   <!-- ******************* Signing Support *********************** -->

src/FastSerialization/MemoryMappedFileStreamReader.cs

@@ -2,8 +2,8 @@
 // This file is best viewed using outline mode (Ctrl-M Ctrl-O)
 //
 // This program uses code hyperlinks available as part of the HyperAddin Visual Studio plug-in.
-// It is available from http://www.codeplex.com/hyperAddin 
-// 
+// It is available from http://www.codeplex.com/hyperAddin
+//
 using System;
 using System.IO;
 using System.Text;      // For StringBuilder.
@@ -12,6 +12,7 @@
 using System.Runtime.InteropServices;
 using DeferedStreamLabel = FastSerialization.StreamLabel;
 using System.Diagnostics;
+using System.Runtime.Versioning;
 
 namespace FastSerialization
 {
@@ -29,6 +30,7 @@ public class MemoryMappedFileStreamReader : IStreamReader
         private long _capacity;
         private long _offset;
 
+        [SupportedOSPlatform("windows")]
         public MemoryMappedFileStreamReader(string mapName, long length, SerializationSettings settings)
             : this(MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.Read), length, leaveOpen: false, settings)
         {

src/TraceEvent/AutomatedAnalysis/DirectoryAnalyzerResolver.cs

@@ -1,11 +1,13 @@
-using System.IO;
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
 using System.Reflection;
 
 namespace Microsoft.Diagnostics.Tracing.AutomatedAnalysis
 {
     /// <summary>
     /// Analyzer resolver that searches the specified directory.
     /// </summary>
+    [RequiresUnreferencedCode("Loads new assemblies")]
     public class DirectoryAnalyzerResolver : AnalyzerResolver
     {
         private static string _baseDirectory;

src/TraceEvent/AutomatedAnalysis/IAnalyzerProvider.cs

@@ -1,5 +1,7 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Runtime.CompilerServices;
 
 namespace Microsoft.Diagnostics.Tracing.AutomatedAnalysis
 {
@@ -13,14 +15,15 @@ public sealed class AnalyzerProviderAttribute : Attribute
         /// Create an new instance of AnalyzerProviderAttribute which stores the Type of the IAnalyzerProvider for the assembly.
         /// </summary>
         /// <param name="providerType">The type contained in this assembly that implements IAnalyzerProvider.</param>
-        public AnalyzerProviderAttribute(Type providerType)
+        public AnalyzerProviderAttribute([DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)] Type providerType)
         {
             ProviderType = providerType;
         }
 
         /// <summary>
         /// The type that implements IAnalyzerProvider.
         /// </summary>
+        [DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
         public Type ProviderType { get; }
     }
 

src/TraceEvent/Ctf/CtfChannel.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Runtime.InteropServices;
 
@@ -162,23 +163,6 @@ private void ReadHeader()
             int bytes = _ctfStream.EventHeader.GetSize();
         }
 
-        private bool ReadStruct<T>(out T result) where T : struct
-        {
-            int size = Marshal.SizeOf(typeof(T));
-            int read = TryReadExactlyCount(_buffer, 0, size);
-
-            _position += read;
-
-            if (size != read)
-            {
-                result = default(T);
-                return false;
-            }
-
-            result = (T)Marshal.PtrToStructure(_handle.AddrOfPinnedObject(), typeof(T));
-            return true;
-        }
-
         public override bool CanRead
         {
             get

src/TraceEvent/Ctf/CtfMetadataLegacyParser.cs

@@ -426,7 +426,7 @@ public unsafe string GetMetadata()
         {
             // TODO:  Currently we read all of metadata and then parse it.  We could do better by
             //        only reading one packet at a time.
-            byte[] headerBufer = new byte[Marshal.SizeOf(typeof(MetadataPacketHeader))];
+            byte[] headerBufer = new byte[Marshal.SizeOf<MetadataPacketHeader>()];
             byte[] buffer = null;
 
             StringBuilder sb = new StringBuilder();