From: "Aurélien Aptel" <aurelien.aptel+emacs@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: emacs-dynamic-module in Emacs Git?
Date: Mon, 1 Dec 2014 14:59:00 +0100 [thread overview]
Message-ID: <CA+5B0FNWeQv3tWSt78UCD-wTYZr952y92c83zOr=RU71jTQ_SQ@mail.gmail.com> (raw)
In-Reply-To: <8361dyaqf1.fsf@gnu.org>
On Sat, Nov 29, 2014 at 6:05 PM, Eli Zaretskii <eliz@gnu.org> wrote:
> I have a few more, specific to the Windows build:
>
> . As with other optional libraries, using libltdl should detect its
> availability at run time, and load it dynamically, instead of
> passing -ltdl switch to the linker when Emacs is built. See
> examples of how to do that in image.c and gnutls.c.
What's the point of doing it this way? Honest question.
> . The Makefile's use literal .so extension for the dynamic libraries
> being built -- this is non-portable and should be determined at
> configure time.
The makefile is temporary. It can be replaced by a more portable
script or elisp afterwards.
> . It seems to me that the modules call functions implemented by
> Emacs, like make_number and Fmember, on the assumption that
> calling any Emacs function will "just work". This is false for
I had to add a linker flag to expose every symbol of Emacs. See the
relevant commit:
http://git.savannah.gnu.org/cgit/emacs.git/commit/configure.ac?h=dynamic-modules&id=5c710fba15e0a3a2ae5d831e5cdb555332238752
> Windows (the link command that produces the shared object will
> fail), unless we mark such exportable functions and build an
> import library that will be passed to the linker when the module's
> shared object is built. Likewise with global variables defined by
> Emacs.
I've never used Windows much for developement. Isn't there a similar
flag we can use on mingw?
> (In general, I question why "modules" that require such tight
> integration with Emacs internals are a good idea: why not simply
> add them to the Emacs core and be done with that? What do we gain
> by having them as separate .so shared objects?)
We could directly add them to Emacs I guess... It's just that time has
shown no-one actually agrees to do it.
> . I don't understand why load-module-suffixes includes extensions
> from different platforms, nor why is this variable needed at all.
`load' has complex logic based on suffixes and knowing the type of
files based on them. I tried to re-use what I could without risking
breaking something.
> AFAIK, libltdl is perfectly capable of finding shared objects on
> each platform without us feeding it the extension to use. It
> knows what extensions are used by the underlying platform for
> shared libraries. Moreover, trying to load .dylib or .dll on
> GNU/Linux will hardly produce good results, so why risk that by
> exposing the platform-specific extensions at all?
I've never had other shared libraries than my system native ones,
especially in an emacs related dir. I don't think it's a problem given
you can load a module using the full path to it.
>
> Please note that the above is based solely on examining the
> source-level diffs; I didn't yet try to build this branch or use it.
>
> Thanks again for working on this.
Thanks for the feedback :-)
next prev parent reply other threads:[~2014-12-01 13:59 UTC|newest]
Thread overview: 265+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-17 12:46 Network security manager Lars Magne Ingebrigtsen
2014-11-17 13:56 ` Ted Zlatanov
2014-11-17 13:59 ` Andreas Schwab
2014-11-17 14:04 ` Lars Magne Ingebrigtsen
2014-11-17 16:13 ` Eli Zaretskii
2014-11-17 14:17 ` Stefan Monnier
2014-11-17 14:21 ` Lars Magne Ingebrigtsen
2014-11-17 15:00 ` Ted Zlatanov
2014-11-17 15:06 ` Ted Zlatanov
2014-11-17 17:31 ` Stefan Monnier
2014-11-17 18:06 ` Ted Zlatanov
2014-11-17 15:22 ` Lars Magne Ingebrigtsen
2014-11-17 16:04 ` Ted Zlatanov
2014-11-17 18:55 ` Lars Magne Ingebrigtsen
2014-11-17 16:22 ` Eli Zaretskii
2014-11-17 16:15 ` Eli Zaretskii
2014-11-17 16:11 ` Eli Zaretskii
2014-11-17 14:00 ` Lars Magne Ingebrigtsen
2014-11-17 16:13 ` Eli Zaretskii
2014-11-17 13:59 ` Stefan Monnier
2014-11-17 15:19 ` Stephen Leake
2014-11-17 15:24 ` Lars Magne Ingebrigtsen
2014-11-17 15:29 ` Kelvin White
2014-11-17 15:38 ` Kelvin White
2014-11-17 18:49 ` Lars Magne Ingebrigtsen
2014-11-17 18:58 ` Rob Browning
2014-11-17 19:07 ` Óscar Fuentes
2014-11-18 8:52 ` Sebastien Vauban
2014-11-18 14:54 ` Óscar Fuentes
2014-11-17 22:53 ` Lars Magne Ingebrigtsen
2014-11-17 23:16 ` Lars Magne Ingebrigtsen
2014-11-17 23:26 ` Lars Magne Ingebrigtsen
2014-11-18 15:19 ` Ted Zlatanov
2014-11-17 23:51 ` Lars Magne Ingebrigtsen
2014-11-18 14:41 ` Lars Magne Ingebrigtsen
2014-11-18 14:57 ` Rasmus
2014-11-18 15:01 ` Lars Magne Ingebrigtsen
2014-11-18 19:44 ` Achim Gratz
2014-11-18 19:48 ` Lars Magne Ingebrigtsen
2014-11-18 15:03 ` Tassilo Horn
2014-11-18 15:10 ` Lars Magne Ingebrigtsen
2014-11-18 15:23 ` Tassilo Horn
2014-11-18 15:17 ` Ted Zlatanov
2014-11-18 15:30 ` Lars Magne Ingebrigtsen
2014-11-18 15:40 ` Lars Magne Ingebrigtsen
2014-11-18 15:45 ` Lars Magne Ingebrigtsen
2014-11-18 16:04 ` Ted Zlatanov
2014-11-18 19:49 ` Achim Gratz
2014-11-18 19:53 ` Lars Magne Ingebrigtsen
2014-11-18 19:55 ` Lars Magne Ingebrigtsen
2014-11-18 21:17 ` David Engster
2014-11-18 21:28 ` David Engster
2014-11-18 21:54 ` Lars Magne Ingebrigtsen
2014-11-18 20:47 ` N. Jackson
2014-11-18 21:07 ` Lars Magne Ingebrigtsen
2014-11-18 21:29 ` N. Jackson
2014-11-18 21:36 ` David Engster
2014-11-18 21:55 ` Lars Magne Ingebrigtsen
2014-11-18 22:02 ` David Engster
2014-11-19 0:05 ` Stephen J. Turnbull
2014-11-18 10:12 ` Toke Høiland-Jørgensen
2014-11-18 15:10 ` Ted Zlatanov
2014-11-18 15:29 ` Lars Magne Ingebrigtsen
2014-11-18 15:58 ` Ted Zlatanov
2014-11-18 16:15 ` Lars Magne Ingebrigtsen
2014-11-18 16:35 ` Lars Magne Ingebrigtsen
2014-11-18 16:41 ` Lars Magne Ingebrigtsen
2014-11-18 17:00 ` Lars Magne Ingebrigtsen
2014-11-18 17:23 ` Ted Zlatanov
2014-11-18 17:28 ` Lars Magne Ingebrigtsen
2014-11-18 17:40 ` Ted Zlatanov
2014-11-18 17:47 ` Eli Zaretskii
2014-11-18 17:57 ` Lars Magne Ingebrigtsen
2014-11-18 17:43 ` Eli Zaretskii
2014-11-18 17:54 ` Lars Magne Ingebrigtsen
2014-11-18 18:08 ` Eli Zaretskii
2014-11-18 18:13 ` Lars Magne Ingebrigtsen
2014-11-18 18:18 ` Lars Magne Ingebrigtsen
2014-11-18 18:29 ` Lars Magne Ingebrigtsen
2014-11-18 18:40 ` Eli Zaretskii
2014-11-18 19:19 ` Lars Magne Ingebrigtsen
2014-11-18 19:22 ` Eli Zaretskii
2014-11-18 19:26 ` Lars Magne Ingebrigtsen
2014-11-18 19:55 ` Eli Zaretskii
2014-11-18 19:24 ` Daniel Colascione
2014-11-18 20:40 ` Stefan Monnier
2014-11-18 20:49 ` Eli Zaretskii
2014-11-18 23:02 ` Lars Magne Ingebrigtsen
2014-11-18 23:31 ` Ted Zlatanov
2014-11-19 8:37 ` Lars Magne Ingebrigtsen
2014-11-19 11:17 ` Ted Zlatanov
2014-11-19 11:23 ` Lars Magne Ingebrigtsen
2014-11-19 11:46 ` Ted Zlatanov
2014-11-19 21:11 ` Toke Høiland-Jørgensen
2014-11-19 7:39 ` Lars Magne Ingebrigtsen
2014-11-18 20:51 ` Lars Magne Ingebrigtsen
2014-11-19 2:09 ` Stefan Monnier
2014-11-19 3:55 ` Eli Zaretskii
2014-11-19 13:40 ` Stefan Monnier
2014-11-19 13:51 ` Ted Zlatanov
2014-11-19 14:45 ` Lars Magne Ingebrigtsen
2014-11-19 15:30 ` Lars Magne Ingebrigtsen
2014-11-19 15:36 ` Ted Zlatanov
2014-11-19 15:47 ` Lars Magne Ingebrigtsen
2014-11-19 15:53 ` Ted Zlatanov
2014-11-19 16:12 ` Lars Magne Ingebrigtsen
2014-11-19 16:12 ` EWW buffers Ivan Shmakov
2014-11-19 16:17 ` Lars Magne Ingebrigtsen
2014-11-19 17:10 ` bug#19109: eww-setup-buffer: use set-buffer instead of switch-to-buffer Ivan Shmakov
[not found] ` <m3r3wznli0.fsf@stories.gnus.org>
[not found] ` <87sih9u4pa.fsf_-_@violet.siamics.net>
[not found] ` <v2tx1p4syz.fsf@fencepost.gnu.org>
2014-11-23 19:35 ` mailing control@, but requesting that no replies be sent there Ivan Shmakov
2014-11-24 0:22 ` bug#19109: " Glenn Morris
2014-11-24 6:50 ` Ivan Shmakov
2014-11-24 7:13 ` Stephen J. Turnbull
2014-11-24 5:00 ` bug#19109: " Stephen J. Turnbull
2014-11-19 22:27 ` EWW buffers Stefan Monnier
2014-11-20 6:47 ` Ivan Shmakov
2014-11-21 12:16 ` Lars Magne Ingebrigtsen
2014-11-19 15:56 ` Network security manager Eli Zaretskii
2014-11-19 22:23 ` Stefan Monnier
2014-11-20 16:22 ` Eli Zaretskii
2014-11-20 23:34 ` Stefan Monnier
2014-11-21 8:10 ` Eli Zaretskii
2014-11-21 9:24 ` Lars Magne Ingebrigtsen
2014-11-21 9:40 ` Eli Zaretskii
2014-11-21 11:12 ` Lars Magne Ingebrigtsen
2014-11-21 10:36 ` Andreas Schwab
2014-11-21 13:30 ` Daniel Colascione
2014-11-21 15:05 ` Stefan Monnier
2014-11-21 15:02 ` Stefan Monnier
2014-11-18 18:30 ` Eli Zaretskii
2014-11-18 18:41 ` Lars Magne Ingebrigtsen
2014-11-18 18:42 ` Eli Zaretskii
2014-11-18 18:24 ` Eli Zaretskii
2014-11-18 18:22 ` Ted Zlatanov
2014-11-18 17:28 ` Ted Zlatanov
2014-11-18 17:36 ` Lars Magne Ingebrigtsen
2014-11-18 17:44 ` Ted Zlatanov
2014-11-18 18:10 ` Lars Magne Ingebrigtsen
2014-11-18 22:09 ` Toke Høiland-Jørgensen
[not found] ` <87egt0792y.fsf@echidna.jochen.org>
2014-11-18 17:28 ` Lars Magne Ingebrigtsen
2014-11-19 4:31 ` Ted Zlatanov
2014-11-19 5:43 ` Toke Høiland-Jørgensen
2014-11-19 8:44 ` Lars Magne Ingebrigtsen
2014-11-19 11:09 ` Ted Zlatanov
2014-11-19 11:19 ` Lars Magne Ingebrigtsen
2014-11-19 11:41 ` Ted Zlatanov
2014-11-19 11:50 ` Lars Magne Ingebrigtsen
2014-11-19 12:11 ` Ted Zlatanov
2014-11-19 14:16 ` Lars Magne Ingebrigtsen
2014-11-19 8:46 ` Lars Magne Ingebrigtsen
2014-11-18 20:50 ` Toke Høiland-Jørgensen
2014-11-18 21:06 ` Lars Magne Ingebrigtsen
2014-11-18 21:10 ` Toke Høiland-Jørgensen
2014-11-18 21:54 ` Lars Magne Ingebrigtsen
2014-11-18 21:57 ` Toke Høiland-Jørgensen
2014-11-18 22:13 ` Lars Magne Ingebrigtsen
2014-11-18 22:18 ` Toke Høiland-Jørgensen
2014-11-18 22:54 ` Lars Magne Ingebrigtsen
2014-11-19 6:03 ` Toke Høiland-Jørgensen
2014-11-19 8:55 ` Lars Magne Ingebrigtsen
2014-11-19 12:05 ` Garreau, Alexandre
2014-11-19 12:17 ` Lars Magne Ingebrigtsen
2014-11-19 12:26 ` Garreau, Alexandre
2014-11-19 12:29 ` Lars Magne Ingebrigtsen
2014-11-23 19:53 ` Lars Magne Ingebrigtsen
2014-11-23 19:59 ` Lars Magne Ingebrigtsen
2014-11-23 20:23 ` Garreau, Alexandre
2014-11-23 20:36 ` Lars Magne Ingebrigtsen
2014-11-23 20:41 ` Lars Magne Ingebrigtsen
2014-11-23 22:24 ` Lars Magne Ingebrigtsen
2014-11-23 22:30 ` joakim
2014-11-30 13:38 ` Stefan Monnier
2014-11-30 22:29 ` Lars Magne Ingebrigtsen
2014-12-01 3:10 ` Stefan Monnier
2014-11-19 14:35 ` Lars Magne Ingebrigtsen
2014-11-19 16:33 ` Toke Høiland-Jørgensen
2014-11-19 16:38 ` Lars Magne Ingebrigtsen
2014-11-19 21:00 ` Toke Høiland-Jørgensen
2014-11-18 21:23 ` Ted Zlatanov
2014-11-18 19:45 ` Lars Magne Ingebrigtsen
2014-11-18 20:33 ` Toke Høiland-Jørgensen
2014-11-18 22:37 ` Lars Magne Ingebrigtsen
2014-11-18 21:37 ` Toke Høiland-Jørgensen
2014-11-18 21:57 ` Lars Magne Ingebrigtsen
2014-11-18 22:03 ` Toke Høiland-Jørgensen
2014-11-18 22:13 ` Lars Magne Ingebrigtsen
2014-11-18 15:22 ` Ted Zlatanov
2014-11-18 15:33 ` Lars Magne Ingebrigtsen
2014-11-18 17:03 ` Glenn Morris
2014-11-18 17:17 ` Daniel Colascione
2014-11-18 17:41 ` Eli Zaretskii
2014-11-22 10:27 ` Steinar Bang
2014-11-17 16:57 ` Romain Francoise
2014-11-17 18:30 ` Stefan Monnier
2014-11-18 8:29 ` Stephen Leake
2014-11-18 15:49 ` Stefan Monnier
2014-11-18 16:01 ` Ted Zlatanov
2014-11-18 16:24 ` Lars Magne Ingebrigtsen
2014-11-18 21:21 ` Toke Høiland-Jørgensen
2014-11-18 22:25 ` Lars Magne Ingebrigtsen
2014-11-18 22:28 ` Toke Høiland-Jørgensen
2014-11-22 5:24 ` emacs-dynamic-module in Emacs Git? Stephen Leake
2014-11-22 15:49 ` Stefan Monnier
2014-11-22 17:12 ` Óscar Fuentes
2014-11-22 23:28 ` Ted Zlatanov
2014-11-23 10:38 ` Aurélien Aptel
2014-11-24 1:19 ` Aurélien Aptel
2014-11-25 10:05 ` Ted Zlatanov
2014-11-26 17:05 ` Aurélien Aptel
2014-11-27 2:10 ` Ted Zlatanov
2014-11-27 15:38 ` Aurélien Aptel
2014-11-27 15:45 ` Ted Zlatanov
2014-11-29 17:05 ` Eli Zaretskii
2014-11-29 17:45 ` Eli Zaretskii
2014-11-30 14:08 ` Stefan Monnier
2014-11-30 15:42 ` Eli Zaretskii
2014-11-30 18:09 ` Stefan Monnier
2014-12-01 0:44 ` Ted Zlatanov
2014-12-01 3:41 ` Stefan Monnier
2014-12-01 10:31 ` Ted Zlatanov
2014-12-01 13:45 ` Stefan Monnier
2014-12-01 14:10 ` Aurélien Aptel
2014-12-01 14:47 ` Ted Zlatanov
2014-12-01 15:04 ` Stefan Monnier
2014-12-01 15:36 ` Ted Zlatanov
2014-12-01 16:28 ` Aurélien Aptel
2014-12-01 17:05 ` Ted Zlatanov
2014-12-01 22:46 ` Stephen Leake
2014-12-01 17:44 ` Eli Zaretskii
2014-12-01 19:40 ` Stefan Monnier
2014-12-01 20:19 ` Ted Zlatanov
2014-12-02 21:22 ` Ted Zlatanov
2014-12-04 20:40 ` Aurélien Aptel
2014-12-05 1:02 ` Ted Zlatanov
2014-12-05 2:43 ` Ivan Andrus
2014-12-10 0:53 ` Ted Zlatanov
2014-12-11 15:49 ` Aurélien Aptel
2014-12-11 14:35 ` Ted Zlatanov
2014-12-01 19:12 ` Stefan Monnier
2014-12-01 22:42 ` Stephen Leake
2014-12-02 1:16 ` Ted Zlatanov
2014-12-02 3:29 ` Stefan Monnier
2014-12-01 16:21 ` Eli Zaretskii
2014-12-01 13:59 ` Aurélien Aptel [this message]
2014-12-01 16:51 ` Eli Zaretskii
2014-12-01 22:58 ` Stephen Leake
2014-12-02 3:33 ` Stefan Monnier
2014-12-03 9:27 ` Stephen Leake
2014-12-03 13:57 ` Stefan Monnier
2014-12-03 17:41 ` Eli Zaretskii
2014-12-02 3:40 ` Eli Zaretskii
2014-12-02 17:58 ` Steinar Bang
2014-12-02 18:09 ` Eli Zaretskii
2014-12-03 10:04 ` Stephen Leake
2014-12-03 10:55 ` David Kastrup
2014-12-03 21:11 ` Stephen Leake
2014-12-03 17:56 ` Eli Zaretskii
2014-12-03 19:05 ` Stefan Monnier
2014-11-17 16:07 ` Network security manager Eli Zaretskii
2014-11-17 18:58 ` Lars Magne Ingebrigtsen
2014-11-17 19:05 ` Eli Zaretskii
2014-11-17 19:37 ` Lars Magne Ingebrigtsen
2014-11-17 19:49 ` Óscar Fuentes
2014-11-17 20:00 ` Lars Magne Ingebrigtsen
2014-11-17 20:31 ` Óscar Fuentes
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