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From: ASSI <Stromeko@nexgo.de>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 50666@debbugs.gnu.org
Subject: bug#50666: 28.0.50; Fix native compilation on Cygwin
Date: Sun, 19 Sep 2021 09:00:46 +0200	[thread overview]
Message-ID: <87bl4pf3s1.fsf@Otto.invalid> (raw)
In-Reply-To: <835yux5dn1.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 19 Sep 2021 08:37:54 +0300")

Eli Zaretskii writes:
> Isn't there a way to rebase a DLL on the fly, when it is loaded?

There is (of course), but then there is no guarantee that you can do a
fork from the resulting memory image.  Which is exactly the problem that
fixing the base addresses of all DLL was intended to solve and has the
unfortunate side effect that you need to modify the on-disk
representation.  On 64bit, marking the eln as ASLR w/ high-entropy and
large address aware will probably work most of the time, but 32bit is
much more prone to collisions (in fact I did use a shell inside an X11
Emacs as my test case when I last unsuccessfully tried to make ASLR work
for Cygwin).


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Factory and User Sound Singles for Waldorf Blofeld:
http://Synth.Stromeko.net/Downloads.html#WaldorfSounds





  reply	other threads:[~2021-09-19  7:00 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-18 20:46 bug#50666: 28.0.50; Fix native compilation on Cygwin Ken Brown
2021-09-18 20:58 ` Ken Brown
2021-09-19  5:37   ` Eli Zaretskii
2021-09-19  7:00     ` ASSI [this message]
2021-09-19  7:08       ` Eli Zaretskii
2021-09-19 11:31         ` ASSI
2021-09-19 12:06           ` Eli Zaretskii
2021-09-19 12:37             ` Ken Brown
2021-09-19 13:41               ` Eli Zaretskii
2021-09-19 14:27                 ` Ken Brown
2021-09-19 15:28                   ` Eli Zaretskii
2021-09-19 16:17                     ` Ken Brown
2021-09-19 17:12                       ` Eli Zaretskii
2021-09-22 21:35                         ` Ken Brown
2021-09-23  7:42                           ` Eli Zaretskii
2021-09-23 14:20                             ` Ken Brown
2021-09-23 16:37                               ` Eli Zaretskii
2021-09-23 17:13                                 ` Ken Brown
2021-09-23 17:29                                   ` Eli Zaretskii
2021-09-23 17:49                                     ` Achim Gratz
2021-09-23 18:01                                       ` Eli Zaretskii
2021-09-23 18:25                                         ` Achim Gratz
2021-09-23 18:46                                           ` Eli Zaretskii
2021-10-28 22:22                                   ` Ken Brown
2021-10-29  5:54                                     ` Eli Zaretskii
2021-10-29 17:03                                       ` Ken Brown
2021-10-29 18:01                                         ` Eli Zaretskii
2021-10-29 18:12                                           ` Ken Brown
2021-10-31 20:22                                             ` Achim Gratz
2021-10-31 23:52                                               ` Ken Brown
2021-09-23 17:27                                 ` Achim Gratz
2021-09-23 17:48                                   ` Eli Zaretskii
2021-09-23 18:29                                     ` Achim Gratz
2021-09-23 18:57                                       ` Eli Zaretskii
2021-09-23 19:37                                       ` Andrea Corallo via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-24  6:11                                         ` ASSI
2021-09-24  7:13                                           ` Eli Zaretskii
2021-09-24  7:32                                           ` Andrea Corallo via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-24  9:05                                             ` ASSI
2021-09-24 10:48                                             ` Eli Zaretskii
2021-09-25 15:10                                               ` Eli Zaretskii
2021-09-23 19:11                             ` Andrea Corallo via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-23 19:21                               ` Eli Zaretskii
2021-09-24  6:04                               ` ASSI
2021-09-24  7:10                                 ` Eli Zaretskii
2021-09-24  7:26                                   ` Andrea Corallo via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-24 11:10                                     ` Eli Zaretskii
2021-09-24 12:49                                       ` Andrea Corallo via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-24  9:15                                   ` ASSI
2021-09-24 11:03                                     ` Eli Zaretskii
2021-09-19  5:32 ` Eli Zaretskii

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