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From: Mathieu Desnoyers <compudj@krystal.dyndns.org>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Paulo Marques <pmarques@grupopie.com>,
	Andrew Morton <akpm@osdl.org>,
	linux-kernel@vger.kernel.org,
	Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [-mm PATCH] kallsyms should prefer non weak symbols
Date: Tue, 4 Dec 2007 17:31:23 -0500	[thread overview]
Message-ID: <20071204223123.GA11100@Krystal> (raw)
In-Reply-To: <20071204133405.13ccd3bb@laptopd505.fenrus.org>

* Arjan van de Ven (arjan@infradead.org) wrote:
> On Tue, 04 Dec 2007 20:35:32 +0000
> Paulo Marques <pmarques@grupopie.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.
> > 
> 
> what user of this api is affected by this?
> 

grep -r kallsyms_lookup * does a pretty good job at it ;)

kernel/kprobes.c
arch/x86/kernel/traps_64.c
blackfin/kernel/traps.c
parisc/kernel/unwind.c
powerpc/xmon/xmon.c
sh64/kernel/unwind.c
kernel/kallsyms.c : sprint_symbol()

Then, sprint_symbol users :

kernel/lockdep_proc.c
kernel/softirq.c
mm/slub.c
fs/gfs2/glock.c
arch/x86/kernel/traps_32.c
arch/x86/kernel/traps_64.c
x86/kernel/syscall_64.c

Mathieu

> 
> -- 
> If you want to reach me at my work email, use arjan@linux.intel.com
> For development, discussion and tips for power savings, 
> visit http://www.lesswatts.org
> 

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

  reply	other threads:[~2007-12-04 22:31 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-04 20:35 [-mm PATCH] kallsyms should prefer non weak symbols Paulo Marques
2007-12-04 21:14 ` Mathieu Desnoyers
2007-12-05 12:07   ` Paulo Marques
2007-12-04 21:17 ` Andrew Morton
2007-12-04 21:38   ` Mathieu Desnoyers
2007-12-04 21:34 ` Arjan van de Ven
2007-12-04 22:31   ` Mathieu Desnoyers [this message]
2007-12-05  9:37     ` Rusty Russell
2007-12-05  2:05 ` Rusty Russell
2007-12-05  3:09 ` Andrew Morton
2007-12-05  3:14 ` Andrew Morton
2007-12-05  5:01   ` Mathieu Desnoyers

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