mark_stack () vs GCPROn

[Sergey Mozgovoy]

Hello,

Emacs has a `mark_stack' function in alloc.c, which looks for (potential)
Lisp_Objects located on the current C stack.  Does it mean that GCPROn
mechanism is not necessary for local Lisp_Object variables now ?  It is
quite clear that gcprolist is still necessary for static Lisp_Objects.
What are the relationships between these 2 approaches for marking objects ?
My impression is that mark_stack() was introduced after the GCPRO thing and
partially superseded it, though I feel that I may be overlooking something.

Best regards,
Sergey Mozgovoy.



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