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From: Keith Owens <kaos@ocs.com.au>
To: Paulo Marques <pmarques@grupopie.com>
Cc: Ingo Molnar <mingo@elte.hu>, Andi Kleen <ak@muc.de>,
       linux-kernel@vger.kernel.org
Subject: Re: [patch] Latency Tracer, voluntary-preempt-2.6.8-rc4-O6 
In-reply-to: Your message of "Tue, 17 Aug 2004 13:14:32 +0100."
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Date: Tue, 17 Aug 2004 23:05:00 +1000
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On Tue, 17 Aug 2004 13:14:32 +0100, 
Paulo Marques <pmarques@grupopie.com> wrote:
>Keith Owens wrote:
>> On Sat, 14 Aug 2004 05:50:50 +0100, 
>> Paulo Marques <pmarques@grupopie.com> wrote:
>> 
>>>Well, I found some time and decided to give it a go :)
>> 
>> 
>> This patch regresses some recent changes to kallsyms which handle
>> aliased symbols, IOW symbols with the same address.  The speed up is
>> very good, but it has two problems with repeated addresses.
>
>Hi,
>
>I've been messing with scripts/kallsyms.c to try to follow Andi Kleen's 
>suggestion of calculating the markers at compile time. This would make 
>the code in kernel/kallsyms.c much simpler.
>
>In the process I could get rid of the aliased symbols at compile time 
>also. There are only 2 places where they might matter:
>
>  - the kallsyms_lookup_name function. GREP'ing through the code shows 
>that this function is only used in arch/ppc64/xmon/xmon.c. Does xmon 
>need to know about aliased symbols?

kdb uses aliased symbols as well.  The user can enter any kernel symbol
name and have it converted to an address.