From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail
From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: MPS: a random backtrace while toying with gdb
Date: Sun, 30 Jun 2024 23:09:33 +0300
Message-ID: <86r0cefb0i.fsf@gnu.org>
References: <87bk3jh8bt.fsf@localhost>
 <aWRX-Rla4BqRQHvSbrgufZMpJSOORApMTiu2u9Up3uAMAtizIoolgdbPgT_3-OnvpFNCKVEuo8w3V8TtJsyVZTFizd6VDFB1MkFdXj96OtA=@protonmail.com>
 <m25xtr2zik.fsf@pro2.fritz.box> <87wmm6rcv1.fsf@gmail.com>
 <86le2mhhsj.fsf@gnu.org> <875xtqramd.fsf@gmail.com> <86cynyhfsn.fsf@gnu.org>
 <87v81qp91g.fsf@gmail.com>
 <ZeoWQ1RUoIjZvrUUJbNFxjD0xFOnP4zEdHo9bQPwxBQMrYl2-7cJvAVallUxxNyfIKm2PGGO9SUwm3YBk3YwYlzRfPMn68a6CEBOAnBX7s8=@protonmail.com>
Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214";
	logging-data="39794"; mail-complaints-to="usenet@ciao.gmane.io"
Cc: eller.helmut@gmail.com, gerd.moellmann@gmail.com,
 yantar92@posteo.net, emacs-devel@gnu.org
To: Pip Cet <pipcet@protonmail.com>
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Jun 30 22:10:28 2024
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>
Envelope-to: ged-emacs-devel@m.gmane-mx.org
Original-Received: from lists.gnu.org ([209.51.188.17])
	by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
	(Exim 4.92)
	(envelope-from <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>)
	id 1sO0sW-000A7x-27
	for ged-emacs-devel@m.gmane-mx.org; Sun, 30 Jun 2024 22:10:28 +0200
Original-Received: from localhost ([::1] helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <emacs-devel-bounces@gnu.org>)
	id 1sO0rj-0000qF-DR; Sun, 30 Jun 2024 16:09:39 -0400
Original-Received: from eggs.gnu.org ([2001:470:142:3::10])
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>) id 1sO0rh-0000pl-1t
 for emacs-devel@gnu.org; Sun, 30 Jun 2024 16:09:37 -0400
Original-Received: from fencepost.gnu.org ([2001:470:142:3::e])
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>)
 id 1sO0rg-0004Uk-GJ; Sun, 30 Jun 2024 16:09:36 -0400
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org;
 s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date:
 mime-version; bh=EK/imsjKah7v+PgvE9e6Q0+5g8M6ZdqjNh/S7ZUce9Q=; b=a1N4w65+hJ3H
 iTNtpDl4DjTXdtGUx/dgmOH6X2XhK14uei9HKQYhzP7myzAa4k+cSaVvR47LuyF2+1GuFY67IsAOG
 JZsSdiJ6cRIotyrIh0CpMEjgWnq3Z9mx6+kzFan1I+L7zP0VLveRHmNoOBj01z2yFxGE2IFKniTDH
 DBlEUk8ohlB8NPj5M7zRd6Sgxf/3IVVHLepZoxDYIOIEl+I4d/ApJ80ikk9hb0PYj1W5euuN6JyuQ
 4l8OWY6XY980djHsYVmbTca7tFNu+nB0J5+u1qfnVtG7+4iMqwnjCm66BvdpPYqGufLzBTiainO4X
 8sAGR3lVpeGvEh0Q+AQ+Qw==;
In-Reply-To: <ZeoWQ1RUoIjZvrUUJbNFxjD0xFOnP4zEdHo9bQPwxBQMrYl2-7cJvAVallUxxNyfIKm2PGGO9SUwm3YBk3YwYlzRfPMn68a6CEBOAnBX7s8=@protonmail.com>
 (message from Pip Cet on Sun, 30 Jun 2024 19:25:36 +0000)
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-devel>,
 <mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-devel>,
 <mailto:emacs-devel-request@gnu.org?subject=subscribe>
Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org
Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org
Xref: news.gmane.io gmane.emacs.devel:320985
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/320985>

> Date: Sun, 30 Jun 2024 19:25:36 +0000
> From: Pip Cet <pipcet@protonmail.com>
> Cc: Eli Zaretskii <eliz@gnu.org>, gerd.moellmann@gmail.com, yantar92@posteo.net,
>  emacs-devel@gnu.org
> 
> IIUC the consensus is you can set an "int" or "bool" to true, or write to a self-pipe, but that's about as much as you should ever do in a signal handler...

That's not true, AFAIU: you can safely call any of the dozens of
functions listed by the signal-safety(7) man page.