Request for swapcontext and getcontext to be ported to our libc

[Matt Emmerton]

> :So is the current context code going into cvs HEAD or whats happening?
> :
> :Petr
>
>     I'm going to let the discussion continue for another day or two but
>     I will note that Matt is the person doing the work so it depends on
>     how much time he has available to do the libc version prior to the
>     release (assuming he agrees with the assessment that it is better to
>     do the libc version for the release then the syscall version).
>
> -Matt

I agree with the assessment.  Last night I moved all the requisite bits from
kernel-space into libc, with the exception of the low-level
[get|set]_mcontext routines.  (My Intel assembly knowledge is very limited,
especially for anything after the 8086, so I could use some help to write
this code.)  I'm almost done the syscall work to get/set the signal mask and
pending signal mask, so should have something up on the web before the end
of the afternoon (EST) for review.

Regards,
--
Matt Emmerton