linux-kernel - [-mm PATCH] kallsyms should prefer non weak symbols

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Message-ID: <4755BA14.8060706@grupopie.com>
Date:	Tue, 04 Dec 2007 20:35:32 +0000
From:	Paulo Marques <pmarques@...popie.com>
To:	Andrew Morton <akpm@...l.org>
CC:	linux-kernel@...r.kernel.org,
	Mathieu Desnoyers <compudj@...stal.dyndns.org>,
	Rusty Russell <rusty@...tcorp.com.au>
Subject: [-mm PATCH] kallsyms should prefer non weak symbols

When resolving symbol names from addresses with aliased symbol names, 
kallsyms_lookup always returns the first symbol, even if it is a weak 
symbol.

This patch changes this by sorting the symbols with the weak symbols 
last before feeding them to the kernel. This way the kernel runtime 
isn't changed at all, only the kallsyms build system is changed.

Another side effect is that the symbols get sorted by address, too. So, 
even if future binutils version have some bug in "nm" that makes it fail 
to correctly sort symbols by address, the kernel won't be affected by this.

From: Paulo Marques <pmarques@...popie.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>

-- 
Paulo Marques - www.grupopie.com

"There cannot be a crisis today; my schedule is already full."

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