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Re: [Libunwind-devel] vdso and libunwind


From: Lassi Tuura
Subject: Re: [Libunwind-devel] vdso and libunwind
Date: Thu, 22 Apr 2010 14:35:27 +0200

Hi,

Thanks for all the responses.

> I don't know if you'll be able to find a way to unwind with
> just the bare vsyscall page...

I concluded as much; I am not going to try to fix this.

What we'll do on our side, outside libunwind, is that if the application didn't 
have a vdso, we'll volunteer symbol names for vsyscall regions we know about. 
It's enough for us to know some spread of hits all meant gettimeofday(), say, 
even if we are not sure where it was called from. Unfortunately these get 
called often enough that it's nice to get a name for the hits.

Regards,
Lassi



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