[RFC] sigaltstack + longjmp to protect from C stack overflow

[Dmitry Antipov]

This is an experimental and most probably non-portable method to handle
C stack overflow by using well-known sigaltstack/siglongjmp approach.
This can help if someone do something like:

(setq max-specpdl-size 83200000
      max-lisp-eval-depth 640000)

(defun f1 () (f1))

(f1) ==> Re-entering top level after C stack overflow

Comments?

Dmitry

c_stack_overflow.patch
Description: Text Data