Date: Thu, 19 Jun 2003 21:12:34 -0700 From: Marcel Moolenaar <marcel@xcllnt.net> To: deischen@freebsd.org Cc: Julian Elischer <julian@elischer.org> Subject: Re: Implementing TLS: step 1 Message-ID: <20030620041234.GA28472@dhcp01.pn.xcllnt.net> In-Reply-To: <Pine.GSO.4.10.10306192348380.19237-100000@pcnet5.pcnet.com> References: <20030620034647.GB2260@dhcp01.pn.xcllnt.net> <Pine.GSO.4.10.10306192348380.19237-100000@pcnet5.pcnet.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, Jun 19, 2003 at 11:57:04PM -0400, Daniel Eischen wrote:
>
> I'm not too sure about the kernel code. If you have KSEs
> working for libthr, then I assume there is very little extra
> kernel code needed. You do need to have get_mcontext() and
> set_mcontext() implemented in machdep.c, though. It looks
> like you do (although nothing is done with clear_ret in
> get_mcontext()).
Yes, {g|s}et_mcontext() are implemented, as is makecontext(3).
We cannot do anything with clear_ret, because it's based on
assumptions that don't hold in ia64.
BTW: there's no race that can't be plugged if TP doesn't point
to the mailbox. All we need is an atomic compare-exchange and
a retry loop...
--
Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030620041234.GA28472>