all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Alin Soare <as1789@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>, emacs-devel@gnu.org
Subject: Re: please help about garbage collector.
Date: Thu, 02 Dec 2010 18:15:06 -0500	[thread overview]
Message-ID: <jwvsjyfpy1q.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <AANLkTikR4t--NezfqyaPEtAiW99QMZKdhv0oFGO58t_i@mail.gmail.com> (Alin Soare's message of "Thu, 2 Dec 2010 17:49:21 +0200")

>> > Could you explain me what kind of Lisp Objects are keps on the stack ?
>> Anything in automatic varables that the compiler puts there.
> How can you detect that at a given address on the stack there is a lisp
> object, and not something else ?

You can't, but we do it anyway.  It's called "conservative stack scanning".


        Stefan



      parent reply	other threads:[~2010-12-02 23:15 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-02  9:10 please help about garbage collector alin soare
2010-12-02 15:46 ` Andreas Schwab
2010-12-02 15:49   ` Alin Soare
2010-12-02 16:00     ` Andreas Schwab
2010-12-03  7:27       ` Alin Soare
2010-12-02 23:15     ` Stefan Monnier [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=jwvsjyfpy1q.fsf-monnier+emacs@gnu.org \
    --to=monnier@iro.umontreal.ca \
    --cc=as1789@gmail.com \
    --cc=emacs-devel@gnu.org \
    --cc=schwab@linux-m68k.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.