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Date: Wed, 10 May 2006 17:22:17 -0700
From: Richard Henderson <rth@twiddle.net>
Subject: Re: [RFC/PATCH] Make powerpc64 use __thread for per-cpu variables
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References: <17505.26159.807484.477212@cargo.ozlabs.ibm.com> <20060510154702.GA28938@twiddle.net> <20060510.124003.04457042.davem@davemloft.net> <17506.21908.857189.645889@cargo.ozlabs.ibm.com> <49BB818F-DF88-43A3-8B6A-7F9F5C7A2C3C@kernel.crashing.org>
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To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>, "David S. Miller" <davem@davemloft.net>, linux-arch@vger.kernel.org, linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
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On Thu, May 11, 2006 at 01:17:50AM +0200, Segher Boessenkool wrote:
> Would an asm clobber of GPR13 in the schedule routines (or a wrapper
> for them, or whatever) work?

No.  The address is cse'd symbolically long before the r13
reference is exposed.


r~