Enable StripSymbols by default

See discussion in dotnet/sdk#31739 (comment).

Once this merges, we should:
- [ ] Update the `dotnet new console -aot` template
- [ ] Update the `dotnet new api -aot` template
- [ ] Update docs and declare different defaults.

src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.Unix.targets

@@ -204,15 +204,15 @@ The .NET Foundation licenses this file to you under the MIT license.
     </PropertyGroup>
 
     <Error Condition="'$(_WhereSymbolStripper)' != '0' and '$(StripSymbols)' == 'true' and '$(ObjCopyNameAlternative)' != ''"
-      Text="Symbol stripping tool ('$(ObjCopyName)' or '$(ObjCopyNameAlternative)') not found in PATH. Try installing appropriate package for $(ObjCopyName) or $(ObjCopyNameAlternative) to resolve the problem." />
+      Text="Symbol stripping tool ('$(ObjCopyName)' or '$(ObjCopyNameAlternative)') not found in PATH. Try installing appropriate package for $(ObjCopyName) or $(ObjCopyNameAlternative) to resolve the problem or set the StripSymbols property to false to disable symbol stripping." />
     <Error Condition="'$(_WhereSymbolStripper)' != '0' and '$(StripSymbols)' == 'true' and '$(_IsApplePlatform)' != 'true'"
-      Text="Symbol stripping tool ('$(ObjCopyName)') not found in PATH. Make sure '$(ObjCopyName)' is available in PATH" />
+      Text="Symbol stripping tool ('$(ObjCopyName)') not found in PATH. Make sure '$(ObjCopyName)' is available in PATH or set the StripSymbols property to false to disable symbol stripping." />
 
     <Exec Command="command -v dsymutil &amp;&amp; command -v strip" IgnoreExitCode="true" StandardOutputImportance="Low" Condition="'$(_IsApplePlatform)' == 'true' and '$(StripSymbols)' == 'true'">
       <Output TaskParameter="ExitCode" PropertyName="_WhereSymbolStripper" />
     </Exec>
     <Error Condition="'$(_WhereSymbolStripper)' != '0' and '$(StripSymbols)' == 'true' and '$(_IsApplePlatform)' != 'true'"
-      Text="Symbol stripping tools ('dsymutil' and 'strip') not found in PATH. Make sure 'dsymutil' and 'strip' are available in PATH" />
+      Text="Symbol stripping tools ('dsymutil' and 'strip') not found in PATH. Make sure 'dsymutil' and 'strip' are available in PATH or set the StripSymbols property to false to disable symbol stripping." />
 
     <Exec Command="dsymutil --help" IgnoreExitCode="true" StandardOutputImportance="Low" Condition="'$(_IsApplePlatform)' == 'true' and '$(StripSymbols)' == 'true'">
       <Output TaskParameter="ExitCode" PropertyName="_DsymUtilOutput" />

src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.targets

@@ -16,6 +16,7 @@ The .NET Foundation licenses this file to you under the MIT license.
 
   <!-- Set defaults for unspecified properties -->
   <PropertyGroup>
+    <StripSymbols Condition="'$(StripSymbols)' == '' and '$(_targetOS)' != 'win'>true</StripSymbols>
     <NativeLib Condition="'$(OutputType)' == 'Library' and '$(NativeLib)' == '' and '$(IlcMultiModule)' != 'true'">Shared</NativeLib>
     <NativeIntermediateOutputPath Condition="'$(NativeIntermediateOutputPath)' == ''">$(IntermediateOutputPath)native\</NativeIntermediateOutputPath>
     <NativeOutputPath Condition="'$(NativeOutputPath)' == ''">$(OutputPath)native\</NativeOutputPath>

src/coreclr/nativeaot/docs/optimizing.md

@@ -41,8 +41,3 @@ Since `PublishTrimmed` is implied to be true with Native AOT, some framework fea
 * `<IlcOptimizationPreference>Size</IlcOptimizationPreference>`: when generating optimized code, favor smaller code size.
 * `<IlcInstructionSet>`: By default, the compiler targets the minimum instruction set supported by the target OS and architecture. This option allows targeting newer instruction sets for better performance. The native binary will require the instruction sets to be supported by the hardware in order to run. For example, `<IlcInstructionSet>avx2,bmi2,fma,pclmul,popcnt,aes</IlcInstructionSet>` will produce binary that takes advantage of instruction sets that are typically present on current Intel and AMD processors. Run `ilc --help` for the full list of available instruction sets. `ilc` can be executed from the NativeAOT package in your local nuget cache e.g. `%USERPROFILE%\.nuget\packages\runtime.win-x64.microsoft.dotnet.ilcompiler\8.0.0-...\tools\ilc.exe` on Windows or `~/.nuget/packages/runtime.linux-arm64.microsoft.dotnet.ilcompiler/8.0.0-.../tools/ilc` on Linux.
 
-## Special considerations for Linux/macOS
-
-Debugging symbols (data about your program required for debugging) is by default part of native executable files on Unix-like operating systems. To strip symbols into a separate file (`*.dbg` on Linux and `*.dwarf` on macOS), set `<StripSymbols>true</StripSymbols>`.
-
-No action is needed on Windows since the platform convention is to generate debug information into a separate file (`*.pdb`).

src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Crossgen2.sfxproj

@@ -48,7 +48,6 @@
               ;RuntimeIdentifier=$(PackageRID)
               ;NativeAotSupported=$(NativeAotSupported)
               ;CoreCLRArtifactsPath=$(CoreCLRArtifactsPath)
-              ;StripSymbols=true
               ;ObjCopyName=$(ObjCopyName)
               ;R2ROverridePath=$(MSBuildThisFileDirectory)ReadyToRun.targets">
       <Output TaskParameter="TargetOutputs"

src/tests/nativeaot/SmokeTests/HardwareIntrinsics/X64Baseline.csproj

@@ -6,7 +6,6 @@
     <CLRTestTargetUnsupported Condition="'$(TargetArchitecture)' != 'x64'">true</CLRTestTargetUnsupported>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <DefineConstants>$(DefineConstants);BASELINE_INTRINSICS</DefineConstants>
-    <StripSymbols>true</StripSymbols>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="Program.cs" />

src/tests/nativeaot/SmokeTests/HardwareIntrinsics/x64NonVex.csproj

@@ -6,7 +6,6 @@
     <CLRTestTargetUnsupported Condition="'$(TargetArchitecture)' != 'x64'">true</CLRTestTargetUnsupported>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <DefineConstants>$(DefineConstants);NON_VEX_INTRINSICS</DefineConstants>
-    <StripSymbols>true</StripSymbols>
   </PropertyGroup>
 
   <ItemGroup>

src/tests/nativeaot/SmokeTests/HardwareIntrinsics/x64Vex.csproj

@@ -6,7 +6,6 @@
     <CLRTestTargetUnsupported Condition="'$(TargetArchitecture)' != 'x64'">true</CLRTestTargetUnsupported>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <DefineConstants>$(DefineConstants);VEX_INTRINSICS</DefineConstants>
-    <StripSymbols>true</StripSymbols>
   </PropertyGroup>
 
   <ItemGroup>