alternate stacks for signal handlers

Stephen Weeks sweeks@intertrust.com
Thu, 27 Jul 2000 10:22:50 -0700 (PDT)


> That's really unfortunate the way that Linux handles alternate signal
> stacks.  I'll set up the register allocator so that %esp always
> corresponds to either the C-stack or to gcState.frontier.  

Just curious -- why did you choose this instead of Henry's double the
space hack?  I think the space cost of his is negligible, and it does
let you have one more register.