[Mono-bugs] [Bug 409500] New: Using -nostdlib with a reference to mscorlib crashes compiler

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Wed Jul 16 07:48:44 EDT 2008


           Summary: Using -nostdlib with a reference to mscorlib crashes
           Product: Mono: Compilers
           Version: 1.9.0
          Platform: x86
        OS/Version: Debian Woody
            Status: NEW
          Severity: Minor
          Priority: P5 - None
         Component: C#
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: sami.kyostila at gmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: Third Party Developer/Partner

Description of Problem:

When gmcs/smcs/mcs is given a command line like the following:

  gmcs -nostdlib -reference:/usr/lib/mono/2.0/mscorlib.dll HelloWorld.cs

the compiler then fails with the following error:

  Unhandled Exception: System.NullReferenceException: Object reference not set
to an instance of an object
    at Mono.CSharp.RootContext.ResolveCore () [0x00000]
    at Mono.CSharp.Driver.MainDriver (System.String[] args) [0x00000]
    at Mono.CSharp.Driver.Main (System.String[] args) [0x00000]

That is, the built-in system types do not seem to be resolved correctly.

Steps to reproduce the problem:
1. Compile any .cs file with gmcs -nostdlib
-reference:/usr/lib/mono/2.0/mscorlib.dll HelloWorld.cs
2. Observe error

Actual Results:
Compilation fails.

Expected Results:
Compilation should succeed.

How often does this happen? 
Every time.

Additional Information:
This problem surfaced when I tried using xbuild to compile a .csproj file and
xbuild called gmcs with a command line with both -nostdlib and a reference to

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