On Mon, Apr 22, 2002 at 11:44:01PM +0200, Klaus Klein wrote:

 > However, when you register a signal trampoline with the kernel, you
 > can also pass a version number along as one of its attributes, and let
 > the kernel choose the interface based on that.  Subsequently, you can
 > configure your kernels to support for previous trampoline interfaces
 > as a part of COMPAT_nn.

FWIW, libc-supplied signal trampolines are slightly nicer from a
debugger perspective...

(I've been on gdb recently, and am having to deal with signal trampoline
goo.)

-- 
        -- Jason R. Thorpe <thorpej@wasabisystems.com>