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Date: Tue, 14 Jun 2005 16:58:18 -0700
From: Andrew Morton <akpm@osdl.org>
To: christoph <christoph@scalex86.org>
Cc: ak@suse.de, linux-kernel@vger.kernel.org, shai@scalex86.org
Subject: Re: [PATCH] Move some variables into the "most_readonly" section??
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christoph <christoph@scalex86.org> wrote:
>
> On Tue, 14 Jun 2005, Andrew Morton wrote:
> 
> > I think readmostliness and alignment are mostly-unrelated concepts and
> > should have separate tag thingies.  IOW,
> > __cacheline_aligned_mostly_readonly goes away and to handle things like the
> > cpu maps we do:
> 
> Yup that makes the whole thing much more sane. Can we specify multiple 
> attributes to a variable?

I suppose so.

Compiling this:

int x   __attribute__((__aligned__(32)))
        __attribute__((__section__(".data.mostly_readonly")));


generates this:

	.file	"t.c"
	.version	"01.01"
gcc2_compiled.:
.globl x
	.section	.data.mostly_readonly,"aw",@progbits
	.align 32
	.type	 x,@object
	.size	 x,4
x:
	.zero	4
	.ident	"GCC: (GNU) 2.96 20000731 (Red Hat Linux 7.3 2.96-113)"

Seems OK?