Kprobes support for accessing args upon return

Stone, Joshua I joshua.i.stone@intel.com
Fri Dec 8 03:01:00 GMT 2006


On Thursday, December 07, 2006 4:42 PM, Jim Keniston wrote:
> On Wed, 2006-12-06 at 18:35, Frank Ch. Eigler wrote:
>> It seems to me that the current (new) syntax could work unchanged
>> for this alternate backend.
> 
> Where is the new syntax documented?  I didn't see it in the stap or
> stapprobes man pages.

If you reference a function parameter from a return probe, just as you
would in an entry probe, the translator will magically make the right
thing happen to save/restore the value.


Josh



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