Re: trap.c: Why do we save tf_edx in sysmsg_fds[1]?

[David Leimbach <leimy2k@xxxxxxx>]

On Nov 10, 2003, at 12:28 PM, Matthew Dillon wrote:

> :On Mon, Nov 10, 2003 at 02:09:44AM -0800, Matthew Dillon wrote:
> :>     Now, practically speaking matter edx is not a saved-used 
> register so it
> :>     shouldn't matter if it gets munged on return, so theoretically 
> we can
> :>     get rid of the edx assigned.  But that could break some obscure
> :>     bit of compatibility so I'd rather leave things as is.
> :
> :I thought it would be really cool to pull the zero %edx on exec cruft
> :into trap.c.  I guess one hack that we know works is better than
> :a different hack that causes gross uncertainty.
> :
> :--
> :   David P. Reese, Jr.                                     
> daver@xxxxxxxxxxxx
> :                                               
> http://www.gomerbud.com/daver/
>
>     I'll document the edx assignment in trap.c so nobody else falls 
> into the
>     same trap.  heh.  get it?  falls into the same trap?  Sigh, my 
> humor is
>     getting horrible these days.

Yes.... sometimes it's just not "punny".

Dave


> 					-Matt
> 					Matthew Dillon
> 					<dillon@xxxxxxxxxxxxx>