Re: [PATCH, MPX] MPX-specific changes in dl_runtime routines

["H.J. Lu" <hjl dot tools at gmail dot com>]

On Thu, Jul 9, 2015 at 7:28 AM, OndÅej BÃlka <neleai@seznam.cz> wrote:
> On Thu, Jul 09, 2015 at 07:12:24AM -0700, H.J. Lu wrote:
>> On Thu, Jul 9, 2015 at 6:37 AM, Zamyatin, Igor <igor.zamyatin@intel.com> wrote:
>> >> On Wed, Jul 8, 2015 at 8:56 AM, Zamyatin, Igor <igor.zamyatin@intel.com>
>> >> wrote:
>> >> > Fixed in the attached patch
>> >> >
>> >>
>> >> I fixed some typos and updated sysdeps/i386/configure for
>> >> HAVE_MPX_SUPPORT.  Please verify both with HAVE_MPX_SUPPORT and
>> >> without on i386 and x86-64.
>> >
>> > Done, all works fine
>> >
>>
>> I checked it in for you.
>>
> These are nice but you could have same problem with lazy tls allocation.
> I wrote patch to merge trampolines, which now conflicts. Could you write
> similar patch to solve that? Original purpose was to always save xmm
> registers so we could use sse2 routines which speeds up lookup time.

So we will preserve only xmm0 to xmm7 in _dl_runtime_resolve? How
much gain it will give us?

-- 
H.J.