Re: uml and -regparm=3

From: Miklos Szeredi
Date: Wed Jan 09 2008 - 16:21:17 EST


> Miklos Szeredi <miklos@xxxxxxxxxx> writes:
>
> > FASTCALL is defined empty in -mm, but UML is not compiled with
> > -mregparm=3 and so this breaks things (I noticed problems with
> > rwsem_down_write_failed).
> >
> > Tried recompiling UML with -mregparm=3, but that resulted in a strange
> > failure immediately after startup:
> >
> > |%GÃÂÂ%@: Invalid argument
> >
> > What's up?
>
> UML links with glibc and that does not use -mregparm.
>
> You can only use -mregparm in user space if you recompile
> all libraries too.

Ah, right. I didn't think of that.

Does that mean that FASTCALL removals will have to be undone? Or is
there an alternative?

Miklos
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