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List:       oprofile-list
Subject:    Re: determining application names for mappings
From:       John Levon <levon () movementarian ! org>
Date:       2002-08-01 14:51:05
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On Thu, Aug 01, 2002 at 05:06:52PM -0400, William Cohen wrote:

> How does the oprofile daemon determine the application name (path to 
> executable)? Is the code in oprofiled just assuming that the first entry 
> in /proc/nnnn/maps (where nnnn is the pid) is the path the the 
> executable?

That's what we did. I even managed to misread the procfs code and remove
the FIXME mentioning /exe link.

> If it is just assuming the first entry in /proc/nnnn/maps 
> has the path to the executable, this is likely to break. It would be 
> more reliable to get this information from /proc/nnnn/exe with a readlink.

... until recently when phe fixed it to do this because X was breaking
the assumption. This change is in ooprofile 0.3

regards
john

-- 
"The simpler it is, the harder it is." 
	- Tim Van Holder


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