linux-kernel - Re: [PATCH 2/2] perf top: Properly notify the user that vmlinux is missing

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Message-Id: <20100316.025134.196872789.davem@davemloft.net>
Date:	Tue, 16 Mar 2010 02:51:34 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mingo@...e.hu
Cc:	acme@...radead.org, linux-kernel@...r.kernel.org,
	fweisbec@...il.com, efault@....de, a.p.zijlstra@...llo.nl,
	paulus@...ba.org
Subject: Re: [PATCH 2/2] perf top: Properly notify the user that vmlinux is
 missing

From: Ingo Molnar <mingo@...e.hu>
Date: Tue, 16 Mar 2010 10:46:11 +0100

> i'd really like that to happen - i.e. if we had the kernel (and modules) image 
> exposed as a (almost-)standard ELF object via /sys or so.
> 
> We already have some aspects of that, via /sys/kernel/notes, but it should be 
> done for real. That would also make build-id support less of a hack.
> 
> ( I'd not include CFI debuginfo in there though - that would be way too large.
>   More compressed debuginfo could be included perhaps. )

That's interesting and useful, but wouldn't help my case as the images
I'm usually booting are completely stripped.

That's why I end up with "[kernel.kallsyms]" for kernel profiling :-)
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