ILAsm versions 5.0 or higher fail when given a res file generated by ILDasm

[Newrad0603]

Description

Attempting to round trip a dll through ILDasm and ILAsm without any changes fails to generate a dll when giving ILAsm the res file created by ILDasm. I've tracked down the failure point to the code in CeeFileGenWriter::emitResourceSection(). The code that scans the res sections never finds any .rsrc sections so the rsrc array check fails and bails. I'm not sure if ILDasm is not generating the proper res format or if ILAsm isn't parsing the res file correctly.

Reproduction Steps

1. Create a C# Class Library project
2. Target it to .NET 472 (not sure if required for repro, but that's what VS builds target)
3. Build the project
4. Run ILDasm on the dll (just used /out switch)

   C:.tools.nuget\packages\runtime.win-x64.microsoft.netcore.ildasm\8.0.0\runtimes\win-x64\native\ildasm.exe C:\source\repos\ClassLibrary3\ClassLibrary3\bin\Debug\net472\ClassLibrary3.dll /out=C:\source\repos\ClassLibrary3\ClassLibrary3\bin\Debug\net472\ClassLibrary3.il

5. Run ILAsm on the il and res generated by Step 4 (just used /out, /resource, and /dll switches)

   C:.tools.nuget\packages\runtime.win-x64.microsoft.netcore.ilasm\8.0.0\runtimes\win-x64\native\ilasm.exe /dll /resource=C:\source\repos\ClassLibrary3\ClassLibrary3\bin\Debug\net472\ClassLibrary3.res C:\source\repos\ClassLibrary3\ClassLibrary3\bin\Debug\net472\ClassLibrary3.il /out=C:\source\repos\ClassLibrary3\ClassLibrary3\bin\Debug\net472\ClassLibrary3.roundtrip.dll

Expected behavior

ILAsm successfully creates the dll with the given res entries

Actual behavior

ILAsm throws the error:

Could not create output file, error code=0x80070714

Regression?

This works with the version of ILAsm that ships with Visual Studio and installs to:

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ilasm.exe

Known Workarounds

No response

Configuration

No response

Other information

No response

[dotnet-policy-service]

Tagging subscribers to this area: @JulieLeeMSFT
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[Newrad0603]

@AaronRobinsonMSFT

[JulieLeeMSFT]

@amanasifkhalid, here is one more high priority issue to include in this quarter's work.

[jkoritzinsky]

This is a duplicate of #11412

[JulieLeeMSFT]

Closing as duplicate.