[Mono-list] How do you debug?

[Marco Canini]

On Fri, 2003-07-04 at 17:23, Ivan Hawkes wrote:
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> On Friday 04 Jul 2003 3:29 pm, Marco Canini wrote:
> > On Fri, 2003-07-04 at 13:24, Jörg Rosenkranz wrote:
> > > Hi all,
> > >
> > > I have a question to all Mono developers out there:
> > > How do you debug your programs?
> > >
> > > I have not managed to get the Mono debugger working and
> > > all statements on the list regarding this subject are saying:
> > > It's broken in CVS.
> > >
> > > So I have to debug a fairly complex app using Console.WriteLine...
> > > Is there another way to search for bugs in Mono under Linux?
> > >
> > > Maybe someone can point me in the right direction ;-)
> >
> > sorry, but at the moment console.writeline is the only way :((
> 
> Are there any indications of how long it will be before it is operational 
> again?

For what i know Martin, the debugger mantainer, is working hard on it,
but i don't know when it will works again.

>  I am kicking off porting a largish (~20,000 lines) project to run 
> under Mono and I'm going to need a bit of debugging support ;->
> 
> The project uses multiple assemblies, ADO.NET, ASP.NET, XML SqlClient, and all 
> sorts of other stuff so it will be fairly involved to get it all working. On 
> the plus side, the whole thing compiled with only 2 lines of code changed 
> (can't write to EventLog) but it doesn't run my simple test app, instead 
> complaining about type conversions:
> 
>  
> Unhandled Exception: System.InvalidCastException: Cannot cast from source type 
> to destination type
> in <0x0007a> 00 System.Data.SqlClient.SqlDataReader:GetInt32 (int)
> in <0x00189> 00 Interesource.Publish.Client.ContentList:.ctor 
> (System.Data.IDataReader,bool)
> in <0x00012> 00 Interesource.Publish.Client.ContentList:.ctor 
> (System.Data.IDataReader)
> in <0x000a2> 00 Interesource.Publish.Client.ContentProvider:ListContentItems 
> (Interesource.Publish.Entities.ContentTypeKey)
> in <0x0009e> 00 simpletest.SimpleTest:Main (string[])
> 
this could be a different type mapping between mono's SqlClient and
.net's SqlClient

Could you report the table definition (sql), the datacolumn definition,
and the code that raises the exception.

btw, with some pain you can get some dbg information my compiling with
/g and running with mono --debug

i said with some pain because the line numbers in exception backtrace
are many times wrong

> Now, this code works on both Framework 1.0 and 1.1, so I'm guessing there is a 
> little work needed on the type casting for Mono. Without a debugger it's 
> going to be a nightmare trying to get it all working, so I'm hoping that 
> debugger will be available again soon.
we all hope so
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-- 
Marco Canini <marco.canini@fastwebnet.it>