On 5/17/07, Nils Nieuwejaar <nils.nieuwejaar at sun.com> wrote: > > On Wed 05/16/07 at 23:48 PM, cquark at gmail.com wrote: > > > > Great if that is possible. I have thought to use a spare user-space > register > > as the indicator to avoid system calls when leaving the native code. > > I don't believe there are any spare registers. Linux uses them all for > system call arguments. Some calls even stick an argument in %ebp.
As noted by Edward, I think %gs itself can be used - just check whether it is set to LWPGS_SEL. ? Regards, Wei Shen -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/brandz-discuss/attachments/20070518/f4ab1e77/attachment.html>
