[kaffe] Some obscure(?) problem...

[Dalibor Topic]

Hi Jukka,

--- Jukka Santala <jsantala at tml.hut.fi> wrote:
> On Wed, 24 Apr 2002, Dalibor Topic wrote:
> > It doesn't really help much. The next thing I get
> in GDB is a kaffe crash in 
> > xerces :(
> org.apache/xerces/StringPool.ensureCapacity(II)Z:
> the iaload array 
> > index check at pc=7 causes a SIGSEGV, since the
> array on stack is null. That 
> > doesn't seem to be picked up by the null check,
> though. Weird.
> 
> Thanks for looking at it. I tried to check into it
> myself quickly, but
> xdebug (and xprof) don't appear compilable on my
> system right now. First
> there's a no-brainer:
> 
> ../../../kaffe/kaffe/xprof/gmonFile.c: In function
> `writeGmonRecord':
> ../../../kaffe/kaffe/xprof/gmonFile.c:136: `char' is
> promoted to `int'
> when passed through `...'
> ../../../kaffe/kaffe/xprof/gmonFile.c:136: (so you
> should pass `int' not
> `char' to `va_arg')
> 
> --- kaffe/xprof/gmonFile.c      23 May 2000 17:55:37
> -0000      1.1
> +++ kaffe/xprof/gmonFile.c      24 Apr 2002 08:12:23
> -0000
> @@ -133,7 +133,7 @@
>                         strcpy(ghh.dimen,
> va_arg(args, char *));
>                         break;
>                 case GRA_DimensionAbbrev:
> -                       ghh.dimen_abbrev =
> va_arg(args, char);
> +                       ghh.dimen_abbrev =
> va_arg(args, int);
>                         break;
>                 case GRA_ProfilingRate:
>                         *((int *)ghh.prof_rate) =
> va_arg(args, int);
> 

Thanks, I'll check it in.

> After fixing that, xdebug still doesn't compile
> because machine_debug_file
> isn't compiled in for some reason - why isn't
> exactly clear, as
> debugFile.c is wrapped with checks for both
> KAFFE_XPROFILER and
> KAFFE_XDEBUGGING. Rather than try to figure that
> out, I turned also
> xprofiling on, but then the compile breaks with:
> 
> ../xprof/.libs/libkaffexprof.a(xprofiler.o): In
> function
> `enableXProfiling':
>
/home/jsantala/kaffe-build/kaffe/xprof/../../../kaffe/kaffe/xprof/xprofiler.c:243:
> undefined reference to `_gmonparam'
>
/home/jsantala/kaffe-build/kaffe/xprof/../../../kaffe/kaffe/xprof/xprofiler.c:249:
> undefined reference to `_gmonparam'
> 
> ...etc.

While you are at it, you might want to take a look at
xprof patches from Janos VM at
http://www.cs.utah.edu/flux/janos/downloads/kaffe_kaffe_xprof.diff.gz
They might help.

cheers,

dali

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