dtrace discuss - Sep 2009 - access to c++ objects

Has anyone tried to access member fields of C++ objects from within  
DTrace?

Can this be done?

	Thanks, Joel

---
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http://wagerlabs.com

Hi Joel,
> Has anyone tried to access member fields of C++ objects from within  
> DTrace?
>
> Can this be done?
It can be done, but not easily. You''ll need to figure out the byte  
offset
and manually pull out the member.

Adam

--
Adam Leventhal, Fishworks                        http://blogs.sun.com/ahl

What is the alternative then?

A USDT probe for every kind of field access?

	Thanks, Joel

On Sep 9, 2009, at 6:38 PM, Adam Leventhal wrote:
> It can be done, but not easily. You''ll need to figure out the byte
> offset
> and manually pull out the member.
>
---
fastest mac firefox!
http://wagerlabs.com

> What is the alternative then?
As I said: find the byte offsets for the members you''re interested in.

Adam

-- 
Adam Leventhal, Fishworks                     http://blogs.sun.com/ahl