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From: storm@cua.dk (Kim F. Storm)
Cc: emacs-devel@gnu.org, handa@m17n.org
Subject: Re: Preventing stack overflows with alloca.
Date: 20 Jun 2004 20:56:24 +0200	[thread overview]
Message-ID: <m3pt7ucb3b.fsf@kfs-l.imdomain.dk> (raw)
In-Reply-To: <E1BbWNv-0001Eh-Ms@fencepost.gnu.org>

Richard Stallman <rms@gnu.org> writes:

>     Since old_value is not a lisp object here,
>     we would need to fix (hack) GC like this:
> 
>       for (bind = specpdl; bind != specpdl_ptr; bind++)
> 	{
> 	  mark_object (bind->symbol);
> 	  if (bind->func != safe_alloca_unwind)
> 	    mark_object (bind->old_value);
> 	}
> 
> Or else use make_save_value to convert it to a clean Lisp object.
> Then GC won't need changing.

I had forgot about make_save_value.  Yes, we should use that.

  reply	other threads:[~2004-06-20 18:56 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-18 10:14 Preventing stack overflows with alloca Kim F. Storm
2004-06-18 11:13 ` Kenichi Handa
2004-06-18 12:02   ` Kim F. Storm
2004-06-19  0:19     ` Kenichi Handa
2004-06-19  3:19     ` Richard Stallman
2004-06-20 18:56       ` Kim F. Storm [this message]
2004-06-21 22:01       ` Kim F. Storm
2004-06-22 23:17         ` Richard Stallman
2004-10-25 17:11   ` Yoichi NAKAYAMA
2004-10-26 14:04     ` Kim F. Storm
2004-10-27 17:34       ` Richard Stallman

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