How to determine that given `.dll` was build for an OS-specific TFM?

[adamsitnik]

Hello everyone!

To tell the long story short, to make OS-specific monikers like net5.0-windows work with BenchmarkDotnet I need to detect (preferably using reflection) that given .dll is using an OS-specific moniker. (more details dotnet/BenchmarkDotNet#1535)

Is it somehow possible?

Repro:

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net5.0-windows</TargetFramework>
  </PropertyGroup>
</Project>

ILSpy gives me:

No information indicates that it's windows-specific.

cc @wli3 @buyaa-n

[buyaa-n]

Sounds like you can use SupportedOSPlatformAttribute injected from MSBuild, but as you know it will be having platform name concatenated with version. Also, there was a bug that version less TFM like net5.0-windows was not injecting the attribute, which is fixed recently, see how version mappings work with the fix

But there might any other attribute better suit for your need cc @sfoslund

[sfoslund]

@dsplaisted is currently adding a TargetPlatform attribute in this PR:#13672. This is probably what you'll want to use.

[adamsitnik]

@buyaa-n @sfoslund thank you both for your input! I am going to close this issue and wait until #13672 gets into SDK