Bug and question

[Daniel P. Berrange]

On Wed, Oct 12, 2005 at 11:42:33AM +0200, Sebastien Decugis wrote:
> I want to access a structure field of a parameter which is a char table,
> and I want to display it as a string. Is it possible? Here is what I
> want to do:

Yes, but you need to use either 'user_string' or 'kernel_string' functions
to convert into the systemtap runtime string object. If you don't do this
you'll just get back the pointer as a long.
 
> probe kernel.function("dev_put") {
>     print("device name: " . $dev->name . "\n")
> }

Try changing it to look like:

  probe kernel.function("dev_put") {
      print("device name: " . kernel_string($dev->name) . "\n")
  }

Regards,
Dan.
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