Andi Kleen wrote:
> "H. Peter Anvin" <[EMAIL PROTECTED]> writes:
>
>> Gautam Singaraju wrote:
>>> I use the _syscall0 macro.
>> Don't. The _syscall*() macros have been unsupported for ages,
>
> That's not true. I supported them on x86 before they were removed against
> my objections.
>
>> and broken for ever longer.
>
> Well, most syscall() versions get 6 argument calls wrong
> (not sure if that is finally fixed). _syscall*() didn't support
> -fPIC for larger argument counts (_syscall0-2 never had a problem)
>
> So all alternatives short of writing your own stub had various
> issues. If you needed 6 argument calls _syscall* was typically
> the best alternative.
>
They were *always* broken for 64-bit arguments on 32-bit machines, however.
-hpa
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