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>
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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
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