GNU bug report logs - #36649
27.0.50; pure space and pdumper

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Message #313 received at 36649 <at> debbugs.gnu.org (full text, mbox):

From: Po Lu <luangruo <at> yahoo.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 36649 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>,
 monnier <at> iro.umontreal.ca, Pip Cet <pipcet <at> gmail.com>
Subject: Re: bug#36649: 27.0.50; pure space and pdumper
Date: Sat, 02 Jul 2022 18:28:40 +0800

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> If I understand correctly, dropping pure space would make Po's work on
> improving the garbage collector easier -- and improving gc is important,
> so it seems to make sense to get rid of pure space just for that reason.
>
> But I'm not against dropping unexec now, too -- we can drop both unexec
> and pure space now.

FWIW none of the dumping mechanisms work with the new garbage collector,
but it will be optional, since I don't see how to make it work on MS-DOS
(which AFAIU has no equivalent of `mprotect').  The current
implementation also assumes 4K pages.

So in my work, pure space and incremental GC are both conditional, under
#ifdef HAVE_MPROTECT.

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