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Date: Sun, 19 Oct 2008 19:52:04 +0200
From: Philippe Gerum <rpm@xenomai.org>
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Subject: Re: [Adeos-main] [PATCH] x86: Don't instrument vdso functions
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: adeos-main <adeos-main@gna.org>

Gilles Chanteperdrix wrote:
> Jan Kiszka wrote:
>> The mcount instrumentation is currently leaking into vdso functions.
>> Patch below fixes this (bits taken from 2.6.27).
> 
> What are these vdso functions? Functions called from user-space?
> 

Yes. Bits of kernel code mapped into user-space to eliminate the need for
reaching them via syscalls.

-- 
Philippe.