PATCH: Add x32 pthread types

[H.J. Lu]

On Mon, May 14, 2012 at 12:29 PM, Roland McGrath <roland@hack.frob.com> wrote:
>> On Mon, May 14, 2012 at 11:22 AM, Roland McGrath <roland@hack.frob.com> wrote:
>> > I think your intent is (and should be) to make the x32 layouts
>> > exactly match the x86_64 ones for these types.  Is that right?
>> >
>> > There are numerous occurrences of 'long int' in this file.
>> > So some sizes and alignments won't match without further changes.
>>
>> Since those structs have pointer fields, x32 ones won't have the
>> same lay out as x86-64 unless we pad it.  Also long int is OK.
>> I don't believe x32 must have the same layout in memory as
>> x86-64.
>
> It looks like the x86_64 formats took some pains to get 8-byte alignment
> even on ones that don't have any 8-byte-wide fields.  I wonder if that
> might be relevant for performance on x32 as well.

None whatsoever.


-- 
H.J.