Date: Fri, 01 Feb 2002 00:13:56 -0800 From: Terry Lambert <tlambert2@mindspring.com> To: Julian Elischer <julian@elischer.org> Cc: Daniel Eischen <eischen@pcnet1.pcnet.com>, arch@FreeBSD.ORG Subject: FWIW... maybe this way already? Message-ID: <3C5A4E44.6380900B@mindspring.com> References: <Pine.BSF.4.21.0201312320470.64929-100000@InterJet.elischer.org>
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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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