DragonFly kernel List (threaded) for 2003-11
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Re: trap.c: Why do we save tf_edx in sysmsg_fds[1]?
: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.
-Matt
Matthew Dillon
<dillon@xxxxxxxxxxxxx>
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