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From: Paul Eggert <eggert@cs.ucla.edu>
To: "Eli Zaretskii" <eliz@gnu.org>,
	"Gerd Möllmann" <gerd.moellmann@gmail.com>
Cc: eller.helmut@gmail.com, emacs-devel@gnu.org
Subject: Re: MPS signals and Emacs
Date: Sun, 21 Apr 2024 23:44:10 -0700	[thread overview]
Message-ID: <71431fc4-2ab2-4778-88df-25d4e315d737@cs.ucla.edu> (raw)
In-Reply-To: <86a5ll7wj9.fsf@gnu.org>

On 2024-04-21 23:15, Eli Zaretskii wrote:

> Paul, can you please help by suggesting how to handle this situation?

I don't know MPS or the MPS branch. However, it sounds like the MPS 
branch should indeed call init_signals (to let Emacs set up signal 
handlers the way it likes) before calling ProtSetup (to let MPS override 
Emacs's handling of SIGBUS and SIGSEGV).

Emacs's SIGBUS and SIGSEGV handlers are used only deal with serious 
internal fatal errors, which should never happen, and if they do happen 
I hope MPS will do the right thing with them by passing them to Emacs's 
thread_fatal_action. You should test that by injecting a serious 
internal fatal error (usage of a bad pointer) into Emacs and seeing that 
MPS does the right thing with it.

I assume that MPS is not being used to allocate any of Emacs's own 
objects, as copying collectors are incompatible with Emacs's habit of 
squirreling away pointers inside integers.



  reply	other threads:[~2024-04-22  6:44 UTC|newest]

Thread overview: 149+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-20  9:34 STatus of MPS branch Gerd Möllmann
2024-04-20 14:56 ` Michael Albinus
2024-04-20 15:08   ` Gerd Möllmann
2024-04-20 15:32     ` Michael Albinus
2024-04-20 17:37       ` Gerd Möllmann
2024-04-21  7:39         ` Michael Albinus
2024-04-21  7:56           ` Gerd Möllmann
2024-04-21  8:00             ` Gerd Möllmann
2024-04-21  8:04               ` Michael Albinus
2024-04-21  8:08                 ` Gerd Möllmann
2024-04-21  8:18                   ` Michael Albinus
2024-04-21  8:28                     ` Gerd Möllmann
2024-04-21  8:17           ` Gerd Möllmann
2024-04-21  9:43             ` Michael Albinus
2024-04-21 10:07               ` Gerd Möllmann
2024-04-21 10:58                 ` Tramp tests in MPS branch (was: STatus of MPS branch) Michael Albinus
2024-04-21 12:44                   ` Tramp tests in MPS branch Gerd Möllmann
2024-04-21  9:29           ` STatus of " Eli Zaretskii
2024-04-21  4:38 ` Gerd Möllmann
2024-04-21  5:31   ` Eli Zaretskii
2024-04-21  5:39     ` Gerd Möllmann
2024-04-21  9:04       ` Eli Zaretskii
2024-04-21  9:17         ` Gerd Möllmann
2024-04-21  6:15 ` Gerd Möllmann
2024-04-21  9:09   ` Eglot tests on MPS branch (was: STatus of MPS branch) Eli Zaretskii
2024-04-21  9:53     ` João Távora
2024-04-21 10:13       ` Eglot tests on MPS branch Gerd Möllmann
2024-04-21 11:01         ` João Távora
2024-04-21 10:55       ` Eglot tests on MPS branch (was: STatus of MPS branch) Eli Zaretskii
2024-04-21  7:49 ` STatus of MPS branch Gerd Möllmann
2024-04-21  8:45   ` Gerd Möllmann
2024-04-21  9:08     ` Andrea Corallo
2024-04-21  9:33     ` Native compilation on " Eli Zaretskii
2024-04-21 10:17       ` Gerd Möllmann
2024-04-21 13:07         ` Andrea Corallo
2024-04-22  7:15           ` Gerd Möllmann
2024-04-22 22:02             ` Andrea Corallo
2024-04-23  3:11               ` Gerd Möllmann
2024-04-23 16:09               ` Gerd Möllmann
2024-04-23 19:43                 ` Andrea Corallo
2024-04-24 12:49                   ` Gerd Möllmann
2024-04-24 18:14                     ` Andrea Corallo
2024-04-24 18:28                       ` Gerd Möllmann
2024-04-24 20:54                         ` Andrea Corallo
2024-04-25  4:33                           ` Gerd Möllmann
2024-04-25  5:50                             ` Andrea Corallo
2024-04-25  7:18                               ` Gerd Möllmann
2024-04-25  8:06                                 ` Andrea Corallo
2024-04-25  8:15                                   ` Gerd Möllmann
2024-04-25  8:57                                     ` Gerd Möllmann
2024-04-25  9:42                                     ` Andrea Corallo
2024-04-25 11:33                                       ` Gerd Möllmann
2024-04-25  5:24                           ` Eli Zaretskii
2024-04-25  5:48                             ` Andrea Corallo
2024-04-25 15:20                               ` Eli Zaretskii
2024-04-26 10:15                                 ` Gerd Möllmann
2024-04-21  8:58   ` STatus of " Andrea Corallo
2024-04-21  9:19     ` Gerd Möllmann
2024-04-21  9:30   ` Native compilation on MPS branch (was: STatus of MPS branch) Eli Zaretskii
2024-04-21 14:39 ` STatus of MPS branch Helmut Eller
2024-04-21 15:37   ` Gerd Möllmann
2024-04-21 15:52     ` Eli Zaretskii
2024-04-21 20:24     ` Helmut Eller
2024-04-22  4:58       ` Gerd Möllmann
2024-04-22  5:28       ` Gerd Möllmann
2024-04-22  6:15         ` MPS signals and Emacs (was: STatus of MPS branch) Eli Zaretskii
2024-04-22  6:44           ` Paul Eggert [this message]
2024-04-22  7:19             ` MPS signals and Emacs Gerd Möllmann
2024-04-22  7:40               ` Paul Eggert
2024-04-22  7:49                 ` Gerd Möllmann
2024-04-22  8:09                   ` Eli Zaretskii
2024-04-22  8:27                     ` Gerd Möllmann
2024-04-22  8:55                       ` Eli Zaretskii
2024-04-22  9:02                         ` Mattias Engdegård
2024-04-22  9:02                         ` Gerd Möllmann
2024-04-22  9:18                           ` Eli Zaretskii
2024-04-22  9:29                             ` Gerd Möllmann
2024-04-22  9:41                               ` Eli Zaretskii
2024-04-22 10:22                                 ` Gerd Möllmann
2024-04-22 10:46                                   ` Eli Zaretskii
2024-04-22 11:00                                     ` Gerd Möllmann
2024-04-22 12:01                                       ` Eli Zaretskii
2024-04-22 12:16                                         ` Gerd Möllmann
2024-04-22 10:54                                   ` Eli Zaretskii
2024-04-22 11:05                                     ` Gerd Möllmann
2024-04-22 19:41                   ` Paul Eggert
2024-04-22 20:55                     ` Gerd Möllmann
2024-04-22 22:12                       ` Paul Eggert
2024-04-23  3:15                         ` Gerd Möllmann
     [not found]                       ` <87le54g1h2.fsf@dick>
2024-04-23  5:51                         ` Gerd Möllmann
2024-04-23  6:35                           ` Helmut Eller
2024-04-23  6:45                             ` Gerd Möllmann
2024-04-23  6:53                               ` Helmut Eller
2024-04-23 14:29                                 ` Gerd Möllmann
     [not found]                                   ` <87sezbsmsd.fsf@dick>
2024-04-24  5:03                                     ` Gerd Möllmann
2024-04-22  7:46               ` Eli Zaretskii
2024-04-22  7:55                 ` Gerd Möllmann
2024-04-22 14:10             ` Helmut Eller
2024-04-22 14:42               ` Eli Zaretskii
2024-04-22 22:06                 ` Paul Eggert
2024-04-23  7:04                   ` Eli Zaretskii
2024-04-22  5:36       ` STatus of MPS branch Gerd Möllmann
2024-04-22  5:50         ` Gerd Möllmann
2024-04-22 15:09           ` Helmut Eller
2024-04-22 17:02             ` Gerd Möllmann
2024-04-24  7:26 ` Collecting markers with MPS (was: STatus of MPS branch) Helmut Eller
2024-04-24  7:44   ` Eli Zaretskii
2024-04-24  8:56     ` Collecting markers with MPS Helmut Eller
2024-04-24  9:17       ` Gerd Möllmann
2024-04-24 10:22       ` Eli Zaretskii
2024-04-24 10:27         ` Gerd Möllmann
2024-04-24 10:58           ` Gerd Möllmann
2024-04-24 13:32             ` Eli Zaretskii
2024-04-24 13:51               ` Gerd Möllmann
2024-04-24 15:03         ` Helmut Eller
2024-04-24 15:54           ` Eli Zaretskii
2024-04-24 16:21             ` Helmut Eller
2024-04-24 16:26               ` Eli Zaretskii
2024-04-24 16:50                 ` Gerd Möllmann
2024-04-24 19:18                 ` Helmut Eller
2024-04-24 19:55                   ` Gerd Möllmann
2024-04-25  7:38                   ` Mattias Engdegård
2024-04-24  9:08     ` Gerd Möllmann
2024-04-24 19:03       ` Helmut Eller
2024-04-24 20:02         ` Gerd Möllmann
2024-04-24 20:13           ` Helmut Eller
2024-04-24 20:42             ` Gerd Möllmann
2024-04-25  9:44       ` Helmut Eller
2024-04-25 11:44         ` Gerd Möllmann
2024-04-25 16:04 ` basic questions on MPS Andrea Corallo
2024-04-25 17:51   ` Helmut Eller
2024-04-25 18:48     ` Eli Zaretskii
2024-04-25 18:53     ` Gerd Möllmann
2024-04-25 19:26     ` Vibhav Pant
2024-04-26  6:36       ` Helmut Eller
2024-04-26  7:25         ` Gerd Möllmann
2024-04-26 15:07         ` vibhavp
2024-04-26  6:42       ` Gerd Möllmann
2024-04-27  0:20     ` Richard Stallman
2024-04-27  8:41       ` Helmut Eller
2024-04-28 22:44         ` Richard Stallman
2024-04-29  4:27           ` Helmut Eller
2024-04-29 22:40             ` Richard Stallman
2024-04-25 18:41   ` Eli Zaretskii
2024-04-25 18:53     ` Andrea Corallo
2024-04-25 18:56       ` Gerd Möllmann
2024-04-25 19:29         ` Andrea Corallo
2024-04-25 19:03       ` Eli Zaretskii
2024-04-25 19:09         ` Andrea Corallo

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