Re: [PATCH] swapcontext vs libpthread, round 9

[yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)]

hi,

> On Fri, Aug 31, 2012 at 04:45:48PM +0000, Emmanuel Dreyfus wrote:
>> After a few round behind the scenes with portmasters (Hi Nick, hi Martin!),
>> here is the latest incarnation of swpacontext vs libpthread patch.
>> 
>> If there are no concerns left, I plan to commit within 2 days.
> 
> I still object to adding _UC_TLSBASE to ports that don't need it. This
> can be done entire in userland, so no kernel change should be required
> or done.
> 
> Joerg

can you elaborate a bit more?

implement the entire setcontext in userland where possible?

or something like the following?

        setcontext(ucp)
        {
        #ifdef(__i386__)
                ucp->uc_mcontext._mc_tlsbase = __lwp_getprivate_fast();
        #else
                ...
        #endif
                return sys_setcontext(ucp);
        }

YAMAMOTO Takashi