linux-kernel - Re: [patch 04/14] ia64: Remove the __SMALL_ADDR

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Date:	Tue, 27 Nov 2007 13:38:02 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Andreas Schwab <schwab@...e.de>
cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-ia64@...r.kernel.org, tony.luck@...el.com
Subject: Re: [patch 04/14] ia64: Remove the __SMALL_ADDR_AREA attribute for
 per cpu access

On Tue, 27 Nov 2007, Andreas Schwab wrote:

> Strange.  Works fine here.
> 
> $ arch/ia64/scripts/toolchain-flags gcc objdump readelf
> -DHAVE_WORKING_TEXT_ALIGN -DHAVE_MODEL_SMALL_ATTRIBUTE -DHAVE_SERIALIZE_DIRECTIVE
> $ gcc --version | head -n 1
> gcc (GCC) 4.2.1 (SUSE Linux)
> $ grep ia64_handle_model_attribute config/ia64/*.c
> config/ia64/ia64.c:static tree ia64_handle_model_attribute (tree *, tree, tree, int, bool *);
> config/ia64/ia64.c:  { "model",	       1, 1, true, false, false, ia64_handle_model_attribute },
> config/ia64/ia64.c:ia64_handle_model_attribute (tree *node, tree name, tree args,
> $ grep small_addr_symbolic_operand config/ia64/*.md
> config/ia64/constraints.md:  (match_operand 0 "small_addr_symbolic_operand"))
> config/ia64/predicates.md:(define_predicate "small_addr_symbolic_operand" 

Hmmm...

http://www.ohse.de/uwe/articles/gcc-attributes.html

says:

model (MODEL-NAME)
    Found in versions: 2.8-3.4

But true my compiler still takes it. Ok, I am going to add an option to 
add attributes to percpu definitions.

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