Ubuntu
mono package

gmcs fails with an Unhandled Exception

Bug #87736 reported by Chris Halse Rogers on 2007-02-25

Affects		Status	Importance	Assigned to	Milestone
	mono	Invalid	Unknown	ximian-bugs #80960
	mono (Ubuntu)	Fix Released	Medium	Unassigned

Bug Description

Binary package hint: mono-gmcs

Version: 1.2.3.1-0ubuntu1

Attempting to compile the mono component of compiz-sharp results in the following exceptions:

chris@Burninator:~/Devel/compiz-sharp/src$ make
gmcs -debug -d:TRACE -unsafe -out:compiz-sharp.dll -t:library Display.cs Icon.cs Option.cs Plugin.cs PluginLoader.cs Screen.cs Texture.cs Window.cs Image.cs
Exception caught by the compiler while compiling:
   Block that caused the problem begin at: Screen.cs(173,45):
                     Block being compiled: [Screen.cs(178,9):,Internal(1,1):]
System.NullReferenceException: Object reference not set to an instance of an object
Exception caught by the compiler while compiling:
   Block that caused the problem begin at: Screen.cs(166,4):
                     Block being compiled: [Screen.cs(173,7):,Internal(1,1):]
System.NullReferenceException: Object reference not set to an instance of an object

Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at Mono.CSharp.ScopeInfo.CreateScope (Mono.CSharp.Block block) [0x00000]
  at Mono.CSharp.Block.CreateScopeInfo () [0x00000]
  at Mono.CSharp.LocalVariableReference.DoResolveBase (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.LocalVariableReference.DoResolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec, ResolveFlags flags) [0x00000]
  at Mono.CSharp.SimpleName.DoSimpleNameResolve (Mono.CSharp.EmitContext ec, Mono.CSharp.Expression right_side, Boolean intermediate) [0x00000]
  at Mono.CSharp.SimpleName.SimpleNameResolve (Mono.CSharp.EmitContext ec, Mono.CSharp.Expression right_side, Boolean intermediate) [0x00000]
  at Mono.CSharp.SimpleName.DoResolve (Mono.CSharp.EmitContext ec, Boolean intermediate) [0x00000]
  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec, ResolveFlags flags) [0x00000]
  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.Assign.DoResolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec, ResolveFlags flags) [0x00000]
  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.ExpressionStatement.ResolveStatement (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.StatementExpression.Resolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.Block.Resolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.Block.Resolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.Unsafe.Resolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.Block.Resolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.EmitContext.ResolveTopBlock (Mono.CSharp.EmitContext anonymous_method_host, Mono.CSharp.ToplevelBlock block, Mono.CSharp.Parameters ip, IMethodData md, System.Boolean& unreachable) [0x00000]
make: *** [compiz-sharp.dll] Error 1

See original description

Revision history for this message

Chris Halse Rogers (raof) wrote on 2007-02-25:

Tarball of the source gmcs fails on Edit (9.4 KiB, application/x-tar)

description:

updated

Revision history for this message

Sebastian Dröge (slomo) wrote on 2007-02-26:

Thanks, forwarded upstream: http://bugzilla.ximian.com/show_bug.cgi?id=80960

Changed in mono:
status:	Unconfirmed → Confirmed

Bug Watch Updater (bug-watch-updater) on 2007-02-26

Changed in mono:
status:	Unknown → Rejected

Revision history for this message

Sebastian Dröge (slomo) wrote on 2007-02-26:

Ok, this is fixed upstream now... if someone can identify which SVN revision fixes this I'll backport the patch, otherwise we have to wait until the next mono release.

Changed in mono:
status:	Confirmed → Fix Committed

Revision history for this message

Chris Halse Rogers (raof) wrote on 2007-02-27:

SVN log tells me that the fix is in:
r73375 | marek | 2007-02-24 05:59:02 +1100 (Sat, 24 Feb 2007) | 5 lines

2007-02-23 Marek Safar <email address hidden>

A fix for bug #80878
* class.cs, cs-parser.jay: Event property can host anonymous methods.

Sebastian Dröge (slomo) on 2007-03-05

Changed in mono:
importance:	Undecided → Medium

Revision history for this message

Chris Halse Rogers (raof) wrote on 2007-03-29:

Is the "fix committed" status of this bug an indication that you've got a fixed package waiting for a couple of extra patches before it gets uploaded? It has been a month, and the current mono-gmcs (1.2.3.1-1ubuntu1) still has the same bug.

Would it be useful for me to backport the patch and attach a debdiff to this bug? I'd really quite like to be able to build compiz-sharp sometime :)

Revision history for this message

Chris Halse Rogers (raof) wrote on 2007-03-31:

Debdiff adding patch from SVN Edit (508.5 KiB, text/html)

In case it makes it any easier, here's a debdiff that applies the patch from SVN.

It doesn't seem to break anything for me, and allows gmcs to build the files in the tarball.

Revision history for this message

Chris Halse Rogers (raof) wrote on 2007-04-01:

I've done some more testing of the debdiff'd package, if it helps at all. They successfully build banshee, f-spot, and beagle.

Chris Halse Rogers (raof) on 2007-04-01

Changed in mono:
assignee:	nobody → ubuntu-main-sponsors

Revision history for this message

William Grant (wgrant) wrote on 2007-04-01: Re: [Bug 87736] Re: gmcs fails with an Unhandled Exception

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Chris Halse Rogers wrote:
> ** Changed in: mono (Ubuntu)
> Assignee: (unassigned) => Ubuntu Sponsors for main

You're meant to subscribe, not assign, ubuntu-main-sponsors. I've done
so here.

assignee nobody
subscribe ubuntu-main-sponsors

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William Grant (wgrant) on 2007-04-01

Changed in mono:
assignee:	ubuntu-main-sponsors → nobody

Revision history for this message

Chris Halse Rogers (raof) wrote on 2007-06-05:

The mono-gmcs 1.2.4-3ubuntu1 package now correctly compiles this code (previous packages of this new upstream version probably did too). Marking as fix released.