Re: [PATCH 2/2] perf top: Properly notify the user that vmlinux ismissing

From: David Miller
Date: Tue Mar 16 2010 - 05:51:18 EST


From: Ingo Molnar <mingo@xxxxxxx>
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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