[Mono-dev] Error handling longs on Mono SPARC

[pablosantosluac at terra.es]

Hi Zoltan,

It's the daily tarball (the date is in the version string) which I
believe is svn trunk.


pablo

Zoltan Varga wrote:
> Hi,
> 
>   Is this the 2.6 prerelease, or using the code from the mono-2-6 branch
> ? The latter has
> some sparc fixes.
> 
>                              Zoltan
> 
> On Mon, Oct 26, 2009 at 1:11 PM, pablosantosluac at terra.es
> <mailto:pablosantosluac at terra.es> <pablosantosluac at terra.es
> <mailto:pablosantosluac at terra.es>> wrote:
> 
>     Hi there,
> 
>     This is our configuration:
> 
>     -bash-3.00$ uname -a
>     SunOS atenea 5.11 snv_34 sun4u sparc SUNW,Sun-Blade-1000
> 
>     -bash-3.00$ mono --version
>     Mono JIT compiler version 20091021 (tarball Wed Oct 21 19:04:28 CEST
>     2009)
>     Copyright (C) 2002-2009 Novell, Inc and Contributors.
>     www.mono-project.com <http://www.mono-project.com>
>            TLS:           normal
>            GC:            Included Boehm (with typed GC and Parallel Mark)
>            SIGSEGV:       normal
>            Notification:  Thread + polling
>            Architecture:  sparc
>            Disabled:      none
> 
>     We're using a Mono 2.6 compiled at our test box.
> 
> 
>     We've a code like this:
> 
>     long dstBrId = GetBranchNumber(brId);
> 
>     log.DebugFormat("Branch {0} -> {1}", brId, dstBrId);
> 
> 
>     Calling this method:
> 
>            private long GetBranchNumber(long brId)
>            {
>                Branch br = (Branch) mFetchBranches[brId];
> 
>                if( br != null )
>                {
>                    return br.ObjId;
>                }
> 
>                log.DebugFormat("GetBranchNumber returning {0}", brId);
> 
>                return brId;
>            }
> 
>     And that's the log it is showing:
> 
>      - GetBranchNumber returning 4
>      - Branch 4 -> 17179869188
> 
>     It looks like, for some reason, this 4 is "magically" becoming a
>     17179869188!!!!!!
> 
>     17179869188 is -> 400000004 in hex!!!!
> 
>     And, it *gets fixed by building disabling the "optimize" mode*
> 
> 
>     Of course, a test app like this:
> 
>     using System;
> 
>     class Hello
>     {
>        public static void Main()
>        {
>            Hello t = new Hello();
>            long myval = 4;
>            long longVal = t.GetValue(myval);
>            Console.WriteLine(longVal);
>        }
> 
>        private long GetValue(long v)
>        {
>            return v;
>        }
> 
>     }
> 
>     Does not fail.
> 
> 
>     Any idea?
> 
> 
>     Thanks,
> 
> 
>     pablo
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