From: Alan Third <alan@idiocy.org>
To: Robert Pluim <rpluim@gmail.com>
Cc: Roland Kaufmann <rlndkfmn+emacs@gmail.com>,
41994@debbugs.gnu.org, Stefan Kangas <stefan@marxist.se>
Subject: bug#41994: Emacs on Apple ARM devices
Date: Fri, 14 Aug 2020 22:11:46 +0200 (CEST) [thread overview]
Message-ID: <20200814201143.GC44359@breton.holly.idiocy.org> (raw)
In-Reply-To: <m24kp55n5f.fsf@gmail.com>
On Fri, Aug 14, 2020 at 04:15:40PM +0200, Robert Pluim wrote:
> >>>>> On Fri, 14 Aug 2020 02:17:18 -0700, Stefan Kangas <stefan@marxist.se> said:
>
> Stefan> Roland Kaufmann <rlndkfmn+emacs@gmail.com> writes:
> >> Code generation on Apple's ARM devices is mostly similar to MacOS, except that
> >> they expect a code signature section, which to avoid wasting too many bytes, are
> >> not aligned on page size as with code, but rather to nearest 16 bytes. In
> >> addition, the ARM compiler will also emit some relative pointer relocation
> >> records, which it seems can be safely ignored as sections aren't rearranged.
> >>
> >> This changeset implements those changes on the Mach-O dumper so that Emacs can
> >> be compiled for ARM devices. With the ongoing convergence between the MacOS and
> >> iOS platform, and the increasing importance of code-signing in later MacOS
> >> versions, I think it could be nice to mainline these changes.
> >>
> >> Since these sections do not occur in current MacOS builds - otherwise they would
> >> generate errors for being unknown - the changes should not impact existing
> >> places where Emacs build, and it would not work on iOS without to begin with.
> >>
> >> Hat tip to Aaron Griffith for sharing his knowledge.
>
> Stefan> This series of patches was submitted 8 weeks ago, but never got a reply
> Stefan> at the time.
>
> Stefan> Could someone with more knowledge about this please help review it?
>
> Are these patches even still needed now that emacs-27 has a portable
> dumper?
That's what I was wondering (although to be honest I never even
noticed there were patches attached).
I suspect the patch to configure.ac might be needed even for the
pdumpder?
--
Alan Third
next prev parent reply other threads:[~2020-08-14 20:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-21 22:13 bug#41994: Emacs on Apple ARM devices Roland Kaufmann
2020-08-14 9:17 ` Stefan Kangas
2020-08-14 14:15 ` Robert Pluim
2020-08-14 20:11 ` Alan Third [this message]
2020-08-14 22:10 ` Roland Kaufmann
2020-08-14 23:04 ` Alan Third
2020-08-15 7:38 ` Roland Kaufmann
2020-08-15 11:45 ` Robert Pluim
2020-08-15 16:17 ` Alan Third
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=20200814201143.GC44359@breton.holly.idiocy.org \
--to=alan@idiocy.org \
--cc=41994@debbugs.gnu.org \
--cc=rlndkfmn+emacs@gmail.com \
--cc=rpluim@gmail.com \
--cc=stefan@marxist.se \
/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.