[webkit-dev] Strang problem with the linux port.

[Mike Emmel]

On 3/9/06, Kimmo Kinnunen <kimmok at iki.fi> wrote:
> Mike Emmel wrote:
> > Hi all I'm having a strange problem with the linux port and maybe
> > someone can help.
> >
> > The problem is that the macros in
> >
> > khtml/html/htmlnames.cpp  fail under linux
> >
> > I dumped the cpp code and  I'm getting generated code like the following.
> >
> >  new ((void*)&abbrTag) QualifiedName(nullAtom, "abbr", xhtmlNS);
> >
> > Now when I looked at the constructor for QualifiedName it takes as args
> >
> > QualifiedName::QualifiedName(const AtomicString& p, const
> > AtomicString& l, const AtomicString& n)
>
> I've experienced this. I think it's g++-4.0 inlining bug.. It happened
> for me also, exactly at "abbr" tag..
>

Yep thats one of them :)

> In dom_qname.cpp (I don't know if this has been renamed) there's a hash
> function
>
> inline unsigned hashComponents(const QualifiedNameComponents& buf)
>
> which I believe will get optimized somehow wrong, and it always hashes
> to zero. I got it working by adding printf("%x", hash); before the zero
> comparison :)
>
> Doesn't make sense unless the printf disables some optimization. In my
> old code there seems also to be 0x80000000u instead of  0x80000000,
> which I believe was some sort of hazard at trying to make sure that
> signedness+bigendian/little endian differences don't matter..
>
> I know this sounds rediculous, but try it if you don't have any other
> clues. My compiler was (GCC) 4.0.2 20050728 (prerelease) [FreeBSD]..
>
> Kimmo
>

So out of that whats the fix for this did you figure out a workaround.
I'm even more puzzled.

Mike

>
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