Date: Mon, 03 Aug 2009 10:45:46 -0700 From: Julian Elischer <julian@elischer.org> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-current@freebsd.org, FreeBSD Current <current@freebsd.org> Subject: Re: possible readability improvement for i386 pcpu macros: Message-ID: <4A77224A.9020706@elischer.org> In-Reply-To: <200908031305.25714.jhb@freebsd.org> References: <4A75691E.9070401@elischer.org> <200908031305.25714.jhb@freebsd.org>
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John Baldwin wrote: > On Sunday 02 August 2009 6:23:26 am Julian Elischer wrote: >> if you have to ever look at the output of the cpp then this removes a >> number of things you have to puzzle over in the output of PCPU_SET() >> and friends. >> >> >> I don't know if it applies to the other architectures. > > It probably applies to amd64. Also, simplifying the amount of code the macros > generate can reduce compile time. That is why Peter added __curthread() so > that all the curthread references did not have to compile a fully expanded > PCPU_GET() macro each time. It gave a noticable reduction in kernel compile > time. > turns out it is already in amd64..
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