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From: Eli Zaretskii <eliz@gnu.org>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: aurelien.aptel+emacs@gmail.com, p.stephani2@gmail.com,
	dancol@dancol.org, tzz@lifelogs.com, emacs-devel@gnu.org
Subject: Re: Dynamic modules: MODULE_HANDLE_SIGNALS etc.
Date: Tue, 22 Dec 2015 18:03:34 +0200	[thread overview]
Message-ID: <83mvt2qxm1.fsf@gnu.org> (raw)
In-Reply-To: <5678D620.6070000@cs.ucla.edu> (message from Paul Eggert on Mon,  21 Dec 2015 20:48:32 -0800)

> Cc: aurelien.aptel+emacs@gmail.com, p.stephani2@gmail.com, tzz@lifelogs.com,
>  emacs-devel@gnu.org
> From: Paul Eggert <eggert@cs.ucla.edu>
> Date: Mon, 21 Dec 2015 20:48:32 -0800
> 
>     The only real change we have to make is to have Emacs longjmp not to
>     return_to_command_loop (which might skip module frames), but to longjmp
>     instead to the most deeply nested entry point from module code into
>     Emacs, which we can set up in advance whenever a module calls into the
>     Emacs API.
> 
> Yes, that looks like something we should do, then, to get stack overflow checking working with modules.

If that means letting modules run arbitrary stack unwinding code on
the alternate stack, I'm against that.  Doing so will significantly
lower the chances for a successful recovery (which means at least
letting the user safely save their work and exit the session).



  parent reply	other threads:[~2015-12-22 16:03 UTC|newest]

Thread overview: 177+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-25 18:39 Dynamic modules: MODULE_HANDLE_SIGNALS etc Eli Zaretskii
2015-11-25 18:50 ` Philipp Stephani
2015-11-25 19:24   ` Eli Zaretskii
2015-11-26 21:29 ` Paul Eggert
2015-11-27  7:35   ` Eli Zaretskii
2015-11-27 19:19     ` Philipp Stephani
2015-11-28 10:58       ` Philipp Stephani
2015-11-28 12:10         ` Eli Zaretskii
2015-12-19 21:03         ` Philipp Stephani
2015-12-19 22:57           ` Philipp Stephani
2015-12-20 15:47             ` Eli Zaretskii
2015-12-20 18:34               ` Philipp Stephani
2015-12-20 19:11                 ` Eli Zaretskii
2015-12-20 21:40                   ` Paul Eggert
2015-12-21  3:33                     ` Eli Zaretskii
2015-12-21 11:00                       ` Paul Eggert
2015-12-21 11:21                         ` Yuri Khan
2015-12-21 11:34                           ` Paul Eggert
2015-12-21 15:46                         ` Eli Zaretskii
2015-12-21 18:15                           ` Paul Eggert
2015-12-21 18:28                             ` Daniel Colascione
2015-12-21 19:00                               ` Eli Zaretskii
2015-12-21 20:19                                 ` Philipp Stephani
2015-12-21 19:04                               ` Eli Zaretskii
2015-12-22  4:09                               ` Paul Eggert
2015-12-22  4:38                                 ` Daniel Colascione
2015-12-22  4:48                                   ` Paul Eggert
2015-12-22  4:52                                     ` Daniel Colascione
2015-12-22  6:09                                       ` Paul Eggert
2015-12-22  6:14                                         ` Daniel Colascione
2015-12-22  6:33                                           ` Paul Eggert
2015-12-22  6:35                                             ` Daniel Colascione
2015-12-22  6:44                                               ` Paul Eggert
2015-12-22  6:53                                                 ` Daniel Colascione
2015-12-22 16:13                                                   ` Eli Zaretskii
2015-12-22 16:12                                           ` Eli Zaretskii
2015-12-22 17:26                                             ` Philipp Stephani
2015-12-22 17:51                                               ` Eli Zaretskii
2015-12-22 16:03                                     ` Eli Zaretskii [this message]
2015-12-22 16:39                                       ` Paul Eggert
2015-12-22 17:46                                         ` Eli Zaretskii
2015-12-22 23:28                                           ` Paul Eggert
2015-12-23 16:10                                             ` Eli Zaretskii
2015-12-23 16:20                                               ` Philipp Stephani
2015-12-23 16:46                                                 ` Eli Zaretskii
2015-12-23 17:09                                                 ` Paul Eggert
2015-12-23 17:18                                                   ` Daniel Colascione
2015-12-24  2:51                                                     ` Paul Eggert
2015-12-24  3:11                                                       ` Daniel Colascione
2015-12-24 16:10                                                       ` Eli Zaretskii
2015-12-24 17:04                                                         ` Daniel Colascione
2015-12-24 17:17                                                           ` John Wiegley
2016-01-03 14:27                                                             ` Daniel Colascione
2016-01-03 15:46                                                               ` Eli Zaretskii
2016-01-03 15:49                                                                 ` Daniel Colascione
2016-01-03 16:40                                                                   ` Eli Zaretskii
2016-01-03 16:50                                                                     ` Daniel Colascione
2016-01-03 17:20                                                                       ` Eli Zaretskii
2016-01-03 16:31                                                               ` Paul Eggert
2016-01-03 16:48                                                                 ` Daniel Colascione
2016-01-03 18:07                                                                   ` Paul Eggert
2016-01-03 18:22                                                                     ` Daniel Colascione
2016-01-03 21:02                                                                       ` Paul Eggert
2016-01-03 21:12                                                                         ` Daniel Colascione
2016-01-03 23:11                                                                           ` Paul Eggert
2016-01-03 23:22                                                                             ` Daniel Colascione
2016-01-03 23:29                                                                               ` John Wiegley
2016-01-04  1:05                                                                               ` Paul Eggert
2016-01-04  1:07                                                                                 ` Daniel Colascione
2016-01-04 15:38                                                                               ` Eli Zaretskii
2016-01-04 15:40                                                                                 ` Daniel Colascione
2016-01-04 16:07                                                                                   ` Eli Zaretskii
2016-01-04 20:32                                                                                     ` John Wiegley
2016-01-04 20:34                                                                                       ` Daniel Colascione
2016-01-04 20:35                                                                                         ` Daniel Colascione
2016-01-04 22:06                                                                                           ` John Wiegley
2016-01-04 15:24                                                                           ` Eli Zaretskii
2016-01-04 15:28                                                                             ` Daniel Colascione
2016-01-04 16:00                                                                               ` Eli Zaretskii
2016-01-03 17:16                                                                 ` Eli Zaretskii
2016-01-03 17:22                                                                   ` Daniel Colascione
2016-01-03 17:39                                                                     ` Eli Zaretskii
2016-01-03 17:49                                                                       ` Daniel Colascione
2016-01-03 18:08                                                                         ` Eli Zaretskii
2016-01-03 18:24                                                                           ` Daniel Colascione
2016-01-03 18:51                                                                             ` Eli Zaretskii
2016-01-03 19:04                                                                               ` Daniel Colascione
2016-01-03 19:15                                                                                 ` Eli Zaretskii
2016-01-03 19:26                                                                                   ` Daniel Colascione
2016-01-03 19:46                                                                                     ` Eli Zaretskii
2016-01-03 19:47                                                                                       ` Daniel Colascione
2016-01-03 19:49                                                                                   ` John Wiegley
2016-01-03 20:14                                                                                     ` Daniel Colascione
2016-01-04  3:17                                                                           ` Richard Stallman
2016-01-03 18:17                                                                         ` Paul Eggert
2016-01-03 17:43                                                                     ` Eli Zaretskii
2016-01-03 20:25                                                               ` John Wiegley
2016-01-03 20:47                                                                 ` Daniel Colascione
2016-01-03 21:07                                                                   ` John Wiegley
2016-01-03 21:28                                                                     ` Daniel Colascione
2016-01-03 21:31                                                                       ` Daniel Colascione
2016-01-04 15:27                                                                         ` Eli Zaretskii
2016-01-04 15:29                                                                           ` Daniel Colascione
2016-01-04 16:01                                                                             ` Eli Zaretskii
2016-01-03 21:45                                                                       ` John Wiegley
2016-01-03 22:20                                                                         ` Daniel Colascione
2016-01-03 22:43                                                                           ` Crash recovery strategies (was: Dynamic modules: MODULE_HANDLE_SIGNALS etc.) John Wiegley
2016-01-03 22:55                                                                             ` Crash recovery strategies Daniel Colascione
2016-01-03 22:59                                                                               ` John Wiegley
2016-01-03 23:04                                                                                 ` Daniel Colascione
2016-01-03 23:20                                                                                   ` John Wiegley
2016-01-03 23:47                                                                               ` John Wiegley
2016-01-03 23:51                                                                                 ` Daniel Colascione
2016-01-04  0:12                                                                                   ` John Wiegley
2016-01-04 15:40                                                                                   ` Eli Zaretskii
2016-01-04 15:44                                                                                     ` Daniel Colascione
2016-01-04 15:33                                                                               ` Eli Zaretskii
2016-01-04 15:34                                                                                 ` Daniel Colascione
2016-01-04 16:02                                                                                   ` Eli Zaretskii
2016-01-03 23:21                                                                             ` Paul Eggert
2016-01-03 23:24                                                                               ` Daniel Colascione
2016-01-03 23:28                                                                                 ` John Wiegley
2016-01-04  0:51                                                                                 ` Paul Eggert
2016-01-03 23:27                                                                               ` John Wiegley
2016-01-03 23:29                                                                                 ` Daniel Colascione
2016-01-03 23:33                                                                                   ` Sending automatic crash reports to the FSF (was: Crash recovery strategies) John Wiegley
2016-01-03 23:36                                                                                     ` Sending automatic crash reports to the FSF Daniel Colascione
2016-01-03 23:39                                                                                       ` John Wiegley
2016-01-03 23:48                                                                                         ` Daniel Colascione
2016-01-04  1:34                                                                                   ` Crash recovery strategies Drew Adams
2016-01-04 15:32                                                                             ` Crash recovery strategies (was: Dynamic modules: MODULE_HANDLE_SIGNALS etc.) Eli Zaretskii
2016-01-04 15:35                                                                               ` Crash recovery strategies Daniel Colascione
2016-01-04 16:04                                                                                 ` Eli Zaretskii
2016-01-05  4:48                                                                                 ` Richard Stallman
2016-01-05 15:52                                                                                   ` Eli Zaretskii
2016-01-05 16:37                                                                                     ` Clément Pit--Claudel
2016-01-05 17:08                                                                                       ` Eli Zaretskii
2016-01-05 17:38                                                                                         ` Clément Pit--Claudel
2016-01-04 15:31                                                                           ` Dynamic modules: MODULE_HANDLE_SIGNALS etc Eli Zaretskii
2016-01-04 15:41                                                                             ` Daniel Colascione
2016-01-04 16:13                                                                               ` Eli Zaretskii
2016-01-04 15:29                                                                         ` Eli Zaretskii
2016-01-04 15:26                                                                       ` Eli Zaretskii
2015-12-24 17:36                                                           ` Eli Zaretskii
2015-12-24 18:06                                                             ` Daniel Colascione
2015-12-24 19:15                                                               ` Eli Zaretskii
2015-12-22 16:01                                   ` Eli Zaretskii
2015-12-22 16:32                                     ` John Wiegley
2015-12-22 20:31                                     ` Daniel Colascione
2015-12-22 20:46                                       ` Eli Zaretskii
2015-12-22 20:52                                         ` Daniel Colascione
2015-12-22 21:08                                           ` Eli Zaretskii
2015-12-22 21:18                                             ` Daniel Colascione
2015-12-23 16:07                                               ` Eli Zaretskii
2015-12-23 16:25                                                 ` Crash robustness (Was: Re: Dynamic modules: MODULE_HANDLE_SIGNALS etc.) Daniel Colascione
2015-12-23 17:30                                                   ` Eli Zaretskii
2015-12-23 17:41                                                     ` Daniel Colascione
2015-12-23 17:55                                                       ` Eli Zaretskii
2015-12-23 17:56                                                         ` Daniel Colascione
2015-12-23 18:09                                                           ` Eli Zaretskii
2015-12-23 18:19                                                             ` Daniel Colascione
2015-12-23 18:45                                                               ` Eli Zaretskii
2015-12-24  3:26                                                                 ` Daniel Colascione
2015-12-21 18:57                             ` Dynamic modules: MODULE_HANDLE_SIGNALS etc Eli Zaretskii
2015-12-21 20:15                             ` Philipp Stephani
2015-12-20 15:48           ` Eli Zaretskii
2015-12-20 18:27             ` Philipp Stephani
2015-12-20 19:00               ` Eli Zaretskii
2015-12-20 21:00                 ` Philipp Stephani
2017-03-26 20:18                   ` Philipp Stephani
2016-02-29 22:48           ` Philipp Stephani
2016-03-01 16:41             ` Paul Eggert
2016-03-01 21:43               ` Philipp Stephani
2016-03-02 18:54                 ` Paul Eggert
2016-03-31 18:44                   ` Philipp Stephani
2016-04-01  8:29                     ` Paul Eggert
2015-11-28 23:20     ` Paul Eggert

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