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From: Nicholas Miell <nmiell@comcast.net>
To: Andrew Morton <akpm@osdl.org>
Cc: Ulrich Drepper <drepper@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] prototypes for *at functions & typo fix
Date: Wed, 18 Jan 2006 20:56:26 -0800	[thread overview]
Message-ID: <1137646586.2842.6.camel@entropy> (raw)
In-Reply-To: <20060118203733.5aac5ee4.akpm@osdl.org>

On Wed, 2006-01-18 at 20:37 -0800, Andrew Morton wrote:
> Ulrich Drepper <drepper@redhat.com> wrote:
> >
> > Do we really need the __NR_ia32_* macros?  The userlevel on x86-64 should be bi-arch and provide the native ia32 unistd.h.
> 
> I'd have thought that x86 and x86_64 could source-level-share the syscall
> table, yes.  ppc manages to.

AMD64 renumbered all the syscalls for optimal cacheline usage or
something stupid like that. I suppose the x86 emulation on AMD64 kernels
could share the i386 table, but then _NR_foo will have a different value
depending on context, and that'll just get confusing.

-- 
Nicholas Miell <nmiell@comcast.net>


  reply	other threads:[~2006-01-19  4:56 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-19  4:29 [PATCH] prototypes for *at functions & typo fix Ulrich Drepper
2006-01-19  4:37 ` Andrew Morton
2006-01-19  4:56   ` Nicholas Miell [this message]
2006-01-19  6:07     ` Ulrich Drepper
2006-01-19  6:37       ` Nicholas Miell

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