Subject: Re: include/setjmp.h including machine/setjmp_jblen.h ...
To: Chris G Demetriou <Chris_G_Demetriou@LAGAVULIN.PDL.CS.CMU.EDU>
From: Andrew Cagney <email@example.com>
Date: 12/05/1994 11:15:00
Excerpts from mail: 4-Dec-94 Re: include/setjmp.h includ.. Chris G
> > The setjmp.h found in my NetBSD-1.0-BETA release contains a run of ...
> > #if ... is an architecture ...
> > #define _JBLEN nnn
> > #elif ... a different architecure ....
> > .
> > .
> > .
> > I'd like to see this code removed, being replaced by a #include of a
> > small header file that defines _JBLEN.
> you propose <machine/setjmp_jblen.h>. actually, i think it should
> simply be <machine/setjmp.h>.
FYI: I'm now calling it:
so the name doesn't matter ....
> also, i believe that jmp_buf (and sigjmp_buf) should be arrays of
> 'long's rather than arrays of ints.
I'd actually like it to be `byte'. It makes the math so much easier.
As you pointed out, however, this doens't force the correct alignment.
What about poking fun at the compiler and instead declaring it as a union like:
And thus fooling it into the correct alignment?
Any way, what ever ...