missing entrypc dwarf line record

[David Wilder]

Frank Ch. Eigler wrote:

>David Wilder <dwilder@us.ibm.com> writes:
>
>  
>
>>[...]
>>semantic error: missing entrypc dwarf line record for function
>>'jprobe_return'
>>semantic error: no match for probe point
>>while: resolving probe point kernel.function("jprobe_return")
>>    
>>
>
>This indicates that there is not even basic debugging information for
>this function (to delineate the beginning of its object code).  At
>this time, we don't gradually degrade to basic symbol-table-level
>information, so such functions cannot be probed.
>
>  
>
>>jprobe_return is black-listed but it is not helping..  [...]
>>    
>>
>
>It being black-listed would imply that an attempt to probe it will be
>blocked at some point.  The translator blacklist operates at
>translation time; the kprobes blacklist operates at startup time.
>
>- FChE
>  
>
Humm ok. I am seeing the problem in semok/twenty.stp run by make all check.
The test is "probe kernel.function("*") {}", Is there a way to use "*" 
and exclude a function?

Is it important to users that kernel.function("*") works? Do I need to 
resolve this for s390?

David Wilder
IBM Linux Technology Center
Beaverton, Oregon, USA 
dwilder@us.ibm.com
(503)578-3789