On Sun, Oct 02, 2005 at 12:31:04PM +0200, Blaisorblade wrote:
> > Yeah, it's bad. The other way to do it is to explictly save the registers
> > in the thread struct, which is effectively the reimplementing setjmp option
> > which you mentioned.
> At least, if we save them separately from the jmpbuf_t, we can use them for
> sysrq t, without reimplementing setjmp() and longjmp(). Not nice, wastes 24
> bytes, but would work.
Yup.
> I have the doubt that the location of those registers is part of the ABI,
I think they are probably not.
> Probably, however, it's just better to test on, say, a Slackware 8.1, and
> hope
> for the best and go doing a fix when things change.
Yeah, I agree. On the positive side, I think that jmp_buf has probably been
unchanged for a long time, and will remain so.
Jeff
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