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Date: Fri, 20 Jun 2003 10:49:29 -0700 (PDT)
From: Julian Elischer <julian@elischer.org>
To: Igor Sysoev <is@rambler-co.ru>
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cc: threads@freebsd.org
Subject: Re: Implementing TLS: step 1
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On Fri, 20 Jun 2003, Igor Sysoev wrote:

> If we could sacrifice our current thread compatibility in 5.0-5.1
> then we could change kse_mailbox from
> 
>         struct kse_mailbox {
>            int                     km_version;     /* Mailbox version */
>            struct kse_thr_mailbox  *km_curthread;  /* Current thread */
>            ...
> 
> to
>      
>         struct kse_mailbox { 
>            struct kse_thr_mailbox  *km_curthread;  /* Current thread */
>            int                     km_version;     /* Mailbox version */
>            ...
> 
> then x86's gs would still point to kse_mailbox, and gs:[0] would be
> and TP pointer.  Also we need to modify
> 
>      struct kse_thr_mailbox {
> +          void              *tls;
>            ucontext_t        tm_context;     /* User thread context */
>            ...
> 
> And the static TLS must be allocated before kse_thr_mailbox.

Yes.
This is what I was thinking...


> 
> 
> Igor Sysoev
> http://sysoev.ru/en/
> 
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