Undocumented Sigvec Call?

[Kevin Conner]

Hiya, I posted this to the net just before christmas and got no replies,
so here I go again.

I am developing a checkpoint utility on an encore multimax machine and came
across a problem which manifested itself during a profile run.

Sigvec is used to send information about a sigentry procedure to the kernel.
It uses signal 1024 (0x400) to send this information although it does return
-1.

My questions are :-
	Is this documented somewhere?
	If so, where?
	Are there any more of these lying about for any more system calls?

Thanks
	Kev

"I didn't say this!  I wasn't here!"

K.N.R.Conner at uk.ac.newcastle          K.N.R.Conner at newcastle.ac.uk
...!ukc!newcastle.ac.uk!K.N.R.Conner