unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Andrea Corallo <akrl@sdf.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: nicolasbertolo@gmail.com, emacs-devel@gnu.org
Subject: Re: [PATCH] [WIP] Port feature/native-comp to Windows.
Date: Sat, 09 May 2020 16:46:46 +0000	[thread overview]
Message-ID: <xjfzhahkqdl.fsf@sdf.org> (raw)
In-Reply-To: <83lfm1dq4y.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 09 May 2020 19:33:49 +0300")

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Andrea Corallo <akrl@sdf.org>
>> Date: Sat, 09 May 2020 16:27:18 +0000
>> Cc: "emacs-devel@gnu.org" <emacs-devel@gnu.org>
>> 
>> Nicolas Bértolo <nicolasbertolo@gmail.com> writes:
>> 
>> > PS: I don't understand why the freloc table is necessary. Is it impossible to
>> > rely on the dynamic linker to solve that when calling dlopen()?
>> 
>> The problem is that being Emacs an executable we do not export the
>> symbols to be used by the dynamic linker.
>
> You mean, the symbols of primitives that compiled Elisp code calls?

Yes

>> I think it should be possible (depending on the tool-chain) but I never
>> tried.  What I'm not sure of is how much is it portable given is not a
>> common scenario.  Because typically afterwards the answer comes up to be
>> "not enough" at the time I decided to handle it inside, the generated
>> code should be similar.
>
> But that is even less portable, isn't it?  Or am I missing something?

No should be portable, the mechanism is very simple, we have just some
memory in the .eln (static variables) that we fill with the right
pointers during load.

Andrea

-- 
akrl@sdf.org



  reply	other threads:[~2020-05-09 16:46 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-08 19:55 [PATCH] [WIP] Port feature/native-comp to Windows Nicolas Bertolo
2020-05-08 22:00 ` Andrea Corallo
2020-05-08 22:11   ` Nicolas Bértolo
2020-05-08 22:22     ` Andrea Corallo
2020-05-08 22:23       ` Nicolas Bértolo
2020-05-08 22:27         ` Andrea Corallo
2020-05-08 23:18           ` Stefan Monnier
2020-05-09  6:07 ` Eli Zaretskii
2020-05-09 15:28   ` Nicolas Bértolo
2020-05-09 15:48     ` Eli Zaretskii
2020-05-09 17:09       ` Andrea Corallo
2020-05-10 16:36       ` Nicolas Bértolo
2020-05-10 17:08         ` Eli Zaretskii
2020-05-10 17:50           ` Nicolas Bértolo
2020-05-10 18:22             ` Eli Zaretskii
2020-05-10 19:02               ` Nicolas Bértolo
2020-05-10 19:16                 ` Eli Zaretskii
2020-05-10 19:41                   ` Nicolas Bértolo
2020-05-10 19:50                     ` Andrea Corallo
2020-05-10 19:55                       ` Nicolas Bértolo
2020-05-10 20:01                         ` Andrea Corallo
2020-05-11 14:19                         ` Eli Zaretskii
2020-05-11 14:17                     ` Eli Zaretskii
2020-05-11 15:20                       ` Nicolas Bértolo
2020-05-11 16:19                         ` Eli Zaretskii
2020-05-11 16:43                           ` Andrea Corallo
2020-05-11 16:44                           ` Nicolas Bértolo
2020-05-11 17:05                             ` Eli Zaretskii
2020-05-11 18:19                           ` Fabrice Popineau
2020-05-11 18:37                             ` Andrea Corallo
2020-05-11 18:48                             ` Eli Zaretskii
2020-05-11 19:27                               ` Stefan Monnier
2020-05-11 19:42                               ` Fabrice Popineau
2020-05-12  2:46                       ` Nicolas Bértolo
2020-05-12 16:56                         ` Eli Zaretskii
2020-05-12 17:25                           ` Nicolas Bértolo
2020-05-12 18:21                             ` Andrea Corallo
2020-05-12 20:33                               ` Andrea Corallo
2020-05-13 14:09                                 ` Nicolas Bértolo
2020-05-13 14:31                                   ` Andrea Corallo
2020-05-13 15:00                                     ` Nicolas Bértolo
2020-05-13 15:17                                       ` Andrea Corallo
2020-05-13 15:48                                   ` Eli Zaretskii
2020-05-13  3:59                         ` Richard Stallman
2020-05-13 14:02                           ` Nicolas Bértolo
2020-05-13 15:23                             ` Eli Zaretskii
2020-05-13 14:52                           ` Eli Zaretskii
2020-05-10 19:47                   ` Andrea Corallo
2020-05-10 19:39                 ` Andrea Corallo
2020-05-10 17:13         ` Andrea Corallo
2020-05-10 17:15           ` Eli Zaretskii
2020-05-10 18:14             ` Andrea Corallo
2020-05-10 18:30               ` Eli Zaretskii
2020-05-10 18:54                 ` Andrea Corallo
2020-05-10 19:02                   ` Eli Zaretskii
2020-05-10 19:07                     ` Nicolas Bértolo
2020-05-10 19:14                     ` Andrea Corallo
2020-05-10 19:24                     ` Andrea Corallo
2020-05-10 19:30                       ` Eli Zaretskii
2020-05-10 18:05           ` Nicolas Bértolo
2020-05-10 18:23             ` Andrea Corallo
2020-05-10 17:20       ` Andrea Corallo
2020-05-09 13:42 ` Andrea Corallo
2020-05-09 15:40   ` Nicolas Bértolo
2020-05-09 15:55     ` Eli Zaretskii
2020-05-09 16:07       ` Nicolas Bértolo
2020-05-09 16:15         ` Eli Zaretskii
2020-05-09 16:27     ` Andrea Corallo
2020-05-09 16:33       ` Eli Zaretskii
2020-05-09 16:46         ` Andrea Corallo [this message]
2020-05-09 16:52     ` Andrea Corallo

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

  List information: https://www.gnu.org/software/emacs/

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

  git send-email \
    --in-reply-to=xjfzhahkqdl.fsf@sdf.org \
    --to=akrl@sdf.org \
    --cc=eliz@gnu.org \
    --cc=emacs-devel@gnu.org \
    --cc=nicolasbertolo@gmail.com \
    /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 public inbox

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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).