Re: [Xen-devel] [PATCH] x86: usercopy assembly constraints

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 13/11/07 16:02, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> Besides only being correct this way, this helps work around a gcc 4.3
> issue.
> At the same time, add some white space, re-order the inputs, and remove
> a bogus cast.

What's the bug? Does some gcc allocate the 4th output parameter into one of
the other used registers (cx,si,di) if we don't use '=&'?

 -- Keir



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