Date: Fri, 1 Feb 2002 10:00:00 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: Terry Lambert <tlambert2@mindspring.com> Cc: Daniel Eischen <eischen@pcnet1.pcnet.com>, arch@FreeBSD.ORG Subject: Re: FWIW... maybe this way already? Message-ID: <Pine.BSF.4.21.0202010959220.67160-100000@InterJet.elischer.org> In-Reply-To: <3C5A4E44.6380900B@mindspring.com>
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this is what mach threads did.. nowm the question is: how do you know where the beginning of the stack is? On Fri, 1 Feb 2002, Terry Lambert wrote: > Linux did what I think is an incredibly clever thing. > > They put the current CPU at the beginning of the stack, > and then change it when/if they migrate the process. > > Since KSEs have stacks, as well, you could put the > process and thread ID after the CPU ID, there. > > Saves weirding out a register to get the CPU, PID, TID, > since the stack base is always known. > > FWIW. > > -- Terry > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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