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

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Message-Id: <20071204131746.ede01c65.akpm@linux-foundation.org>
Date:	Tue, 4 Dec 2007 13:17:46 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Paulo Marques <pmarques@...popie.com>
Cc:	linux-kernel@...r.kernel.org, compudj@...stal.dyndns.org,
	rusty@...tcorp.com.au
Subject: Re: [-mm PATCH] kallsyms should prefer non weak symbols

On Tue, 04 Dec 2007 20:35:32 +0000
Paulo Marques <pmarques@...popie.com> wrote:

> 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.
> 
> 

I don't understand the reason for making this change.
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