Messages in this thread | | | Date | Fri, 28 Nov 2008 10:19:22 -0800 | From | Arjan van de Ven <> | Subject | dynamic function tracing |
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Hi,
I like the new function trace format with the {}'s a lot.. but I would like to use it in a way I don't think would work with dynamic tracing.
What I would like to do (read: usecase) is mark a function as interesting (because it has some performance issue or whatever), and then I want to get all functions it calls (recursive) traced automatically for the duration of that function.
This might be implementable by, on hitting the function to trace, patching all trace points with a function that checks if it's this thread (eg this "current"), and if so, traces the call. I realize it's not going to be super cheap, so it needs to be one-shot, but it'll form a really strong usecase in practice...
-- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org
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