From: Ken Raeburn <raeburn@gnu.org>
Cc: eliz@gnu.org, emacs-devel@gnu.org
Subject: Re: PURESIZE increased (again)
Date: Thu, 27 Apr 2006 18:29:31 -0400 [thread overview]
Message-ID: <A8CB0691-2AF9-48E8-A225-A8DDF3F179E9@gnu.org> (raw)
In-Reply-To: <200604272212.k3RMCe4C001158@jane.dms.auburn.edu>
On Apr 27, 2006, at 18:12, Luc Teirlinck wrote:
>> From my previous message:
>
> Of course, using different compilers or different C Libraries,
> _including_ different version numbers for the same compiler or
> library
> will not have any effect on the .el file, but it can definitely
> have
> an effect on the .elc files
>
> On second thought, this seems less immediately obvious, from a purely
> "logical" point of view. But apparently, from the empirical evidence,
> differences in compiler, library or OS do seem to matter much more
> compiled Lisp files. Probably, the alignment issues are more complex
> for them.
From what I've seen of the Lisp structures and allocation code, I'd
be very surprised if this were true. You *may* get different
compilers imposing different alignment/padding constraints for
structures or unions, but such cases should be very rare and arguably
reported as bugs (it'll lead to interoperability problems if they're
used on the same system), and I doubt any of the types Emacs Lisp
uses get any significant padding. And I don't think there are many
data types allocated in loading a .elc file that are not used when
loading a .el file.
Ken
next prev parent reply other threads:[~2006-04-27 22:29 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-16 7:07 PURESIZE increased (again) Eli Zaretskii
2006-04-16 7:18 ` Eli Zaretskii
2006-04-16 10:56 ` Romain Francoise
2006-04-16 12:13 ` Andreas Schwab
2006-04-16 16:59 ` Eli Zaretskii
2006-04-20 16:51 ` Reiner Steib
2006-04-20 18:50 ` Eli Zaretskii
2006-04-20 21:03 ` Reiner Steib
2006-04-20 21:37 ` Stefan Monnier
2006-04-21 7:49 ` Eli Zaretskii
2006-04-21 7:48 ` Eli Zaretskii
2006-04-21 9:15 ` Eli Zaretskii
2006-04-26 13:50 ` Reiner Steib
2006-04-27 20:38 ` Eli Zaretskii
2006-04-27 20:52 ` David Kastrup
2006-04-28 5:26 ` Eli Zaretskii
2006-04-27 21:19 ` Luc Teirlinck
2006-04-28 5:22 ` Eli Zaretskii
2006-04-28 16:09 ` Stefan Monnier
2006-04-28 16:27 ` Eli Zaretskii
2006-04-27 21:56 ` Reiner Steib
2006-04-28 5:35 ` Eli Zaretskii
2006-04-28 13:11 ` Reiner Steib
2006-04-28 15:24 ` Andreas Schwab
2006-04-28 16:19 ` Eli Zaretskii
2006-04-28 17:15 ` Reiner Steib
2006-04-29 15:13 ` Eli Zaretskii
2006-04-29 15:27 ` Stefan Monnier
2006-04-29 16:49 ` Eli Zaretskii
2006-04-29 15:33 ` Andreas Schwab
2006-05-30 19:40 ` Reiner Steib
2006-05-30 19:47 ` Eli Zaretskii
2006-06-03 11:53 ` Eli Zaretskii
2006-06-09 15:33 ` Reiner Steib
2006-06-09 16:49 ` Eli Zaretskii
2006-06-09 16:57 ` Andreas Schwab
2006-06-09 19:55 ` Eli Zaretskii
2006-06-09 22:33 ` Andreas Schwab
2006-06-10 7:39 ` Eli Zaretskii
2006-06-10 9:36 ` Andreas Schwab
2006-06-10 12:04 ` Reiner Steib
2006-04-27 22:12 ` Luc Teirlinck
2006-04-27 22:29 ` Ken Raeburn [this message]
2006-04-27 22:53 ` Luc Teirlinck
2006-04-27 23:16 ` Ken Raeburn
2006-04-28 14:18 ` Andreas Schwab
2006-04-28 16:15 ` Eli Zaretskii
2006-04-28 17:25 ` Reiner Steib
2006-04-27 23:16 ` Luc Teirlinck
2006-04-27 22:24 ` Ken Raeburn
2006-04-27 22:38 ` David Kastrup
2006-04-27 23:04 ` Ken Raeburn
2006-04-28 5:36 ` Eli Zaretskii
2006-04-28 5:29 ` Eli Zaretskii
2006-04-28 6:42 ` David Kastrup
2006-04-28 7:07 ` Ken Raeburn
2006-04-28 13:03 ` Eli Zaretskii
2006-04-21 23:10 ` Luc Teirlinck
2006-04-22 10:13 ` Eli Zaretskii
2006-04-22 11:35 ` Miles Bader
2006-04-22 13:15 ` Eli Zaretskii
2006-04-23 1:59 ` Luc Teirlinck
2006-04-23 3:35 ` Eli Zaretskii
2006-04-23 3:46 ` Nick Roberts
2006-04-23 13:51 ` Drew Adams
2006-04-23 16:02 ` Alan Shutko
2006-04-23 18:41 ` Eli Zaretskii
2006-04-23 21:58 ` Richard Stallman
2006-04-23 23:06 ` Nick Roberts
2006-04-23 15:54 ` Bill Wohler
2006-04-23 17:29 ` Luc Teirlinck
2006-04-23 17:52 ` Bill Wohler
2006-04-23 17:58 ` David Kastrup
2006-04-23 19:43 ` Robert J. Chassell
2006-04-23 22:20 ` Richard Stallman
2006-04-23 18:53 ` Eli Zaretskii
2006-04-23 18:43 ` Eli Zaretskii
2006-04-23 16:23 ` Dan Nicolaescu
2006-04-23 18:40 ` Eli Zaretskii
2006-04-23 18:48 ` Dan Nicolaescu
2006-04-23 18:56 ` Eli Zaretskii
2006-04-24 11:51 ` Richard Stallman
2006-04-23 2:06 ` Luc Teirlinck
2006-04-22 22:33 ` Richard Stallman
2006-04-23 1:05 ` Luc Teirlinck
2006-04-23 3:32 ` Eli Zaretskii
2006-04-23 21:58 ` Richard Stallman
2006-04-16 17:27 ` Romain Francoise
2006-04-16 17:07 ` Eli Zaretskii
2006-04-18 17:17 ` Bill Wohler
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