dtrace discuss - Oct 2010 - dtrace: no struct definition available

Hi

I have been using dtrace script to monitor WiFi frames. For some reason, when I
run the script I get the following error:
 
dtrace: failed on compile script....line 56: operator -> can not be applied
to a forward declaration: no struct ieee80211_frame definition is avaiable.

And this is happening in all the scripts that use this structure. They were
running fine previously. I had a few system freeze-reboot cycles in between
though.

How can I resolve this issue and run them again.
Thanks

-SF
-- 
This message posted from opensolaris.org

Saadia Fatima wrote:
> Hi
> 
> I have been using dtrace script to monitor WiFi frames. For some reason,
when I run the script I get the following error:
>  
> dtrace: failed on compile script....line 56: operator -> can not be
applied to a forward declaration: no struct ieee80211_frame definition is
avaiable.
> 
> And this is happening in all the scripts that use this structure. They were
running fine previously. I had a few system freeze-reboot cycles in between
though.
> 
> How can I resolve this issue and run them again.
That structure isn''t normally a packaged part of the system. 
It''s in
$SRC/uts/common/sys/net80211_proto.h, which I suppose you could copy
from the source tree to any place you want.  Or you could try contacting
the folks who maintain that file (laptop-discuss at opensolaris.org would
be a good choice) and see why it''s not normally delivered and whether
you could get it to be included.

Most likely, your D script depends on an implementation artifact, and
this is an early warning that the underlying code you''re trying to use
may change incompatibly without warning.

-- 
James Carlson         42.703N 71.076W         <carlsonj at
workingcode.com>