This is the mail archive of the
mailing list for the glibc project.
Re: PATCH: Add x32 pthread types
On Mon, May 14, 2012 at 12:29 PM, Roland McGrath <firstname.lastname@example.org> wrote:
>> On Mon, May 14, 2012 at 11:22 AM, Roland McGrath <email@example.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
> 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.