dtrace: no struct definition available

[Saadia Fatima]

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

[James Carlson]

Post by Saadia Fatima
Hi
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-***@public.gmane.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.