From mboxrd@z Thu Jan 1 00:00:00 1970
Path: news.gmane.org!.POSTED!not-for-mail
From: Philipp Stephani
Newsgroups: gmane.emacs.bugs
Subject: bug#31072: 27.0.50; Assertion failure in defvar
Date: Fri, 06 Apr 2018 15:57:40 +0000
Message-ID:
References:
NNTP-Posting-Host: blaine.gmane.org
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="0000000000004cf3300569301e57"
X-Trace: blaine.gmane.org 1523030172 32621 195.159.176.226 (6 Apr 2018 15:56:12 GMT)
X-Complaints-To: usenet@blaine.gmane.org
NNTP-Posting-Date: Fri, 6 Apr 2018 15:56:12 +0000 (UTC)
To: 31072@debbugs.gnu.org
Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Apr 06 17:56:08 2018
Return-path:
Envelope-to: geb-bug-gnu-emacs@m.gmane.org
Original-Received: from lists.gnu.org ([208.118.235.17])
by blaine.gmane.org with esmtp (Exim 4.84_2)
(envelope-from )
id 1f4Tif-0008Lv-Ux
for geb-bug-gnu-emacs@m.gmane.org; Fri, 06 Apr 2018 17:56:06 +0200
Original-Received: from localhost ([::1]:36183 helo=lists.gnu.org)
by lists.gnu.org with esmtp (Exim 4.71)
(envelope-from )
id 1f4Tkl-00029K-K0
for geb-bug-gnu-emacs@m.gmane.org; Fri, 06 Apr 2018 11:58:15 -0400
Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:51640)
by lists.gnu.org with esmtp (Exim 4.71)
(envelope-from ) id 1f4Tkc-00028C-3k
for bug-gnu-emacs@gnu.org; Fri, 06 Apr 2018 11:58:07 -0400
Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
(envelope-from ) id 1f4TkZ-0007Yx-11
for bug-gnu-emacs@gnu.org; Fri, 06 Apr 2018 11:58:06 -0400
Original-Received: from debbugs.gnu.org ([208.118.235.43]:60872)
by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
(Exim 4.71) (envelope-from )
id 1f4TkY-0007Yf-Qx
for bug-gnu-emacs@gnu.org; Fri, 06 Apr 2018 11:58:02 -0400
Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
(envelope-from ) id 1f4TkY-0004uq-CO
for bug-gnu-emacs@gnu.org; Fri, 06 Apr 2018 11:58:02 -0400
X-Loop: help-debbugs@gnu.org
Resent-From: Philipp Stephani
Original-Sender: "Debbugs-submit"
Resent-CC: bug-gnu-emacs@gnu.org
Resent-Date: Fri, 06 Apr 2018 15:58:02 +0000
Resent-Message-ID:
Resent-Sender: help-debbugs@gnu.org
X-GNU-PR-Message: followup 31072
X-GNU-PR-Package: emacs
X-GNU-PR-Keywords:
Original-Received: via spool by 31072-submit@debbugs.gnu.org id=B31072.152303027918887
(code B ref 31072); Fri, 06 Apr 2018 15:58:02 +0000
Original-Received: (at 31072) by debbugs.gnu.org; 6 Apr 2018 15:57:59 +0000
Original-Received: from localhost ([127.0.0.1]:40536 helo=debbugs.gnu.org)
by debbugs.gnu.org with esmtp (Exim 4.84_2)
(envelope-from )
id 1f4TkV-0004uZ-Fk
for submit@debbugs.gnu.org; Fri, 06 Apr 2018 11:57:59 -0400
Original-Received: from mail-lf0-f41.google.com ([209.85.215.41]:40055)
by debbugs.gnu.org with esmtp (Exim 4.84_2)
(envelope-from ) id 1f4TkT-0004uK-GD
for 31072@debbugs.gnu.org; Fri, 06 Apr 2018 11:57:57 -0400
Original-Received: by mail-lf0-f41.google.com with SMTP id e5-v6so1226761lfb.7
for <31072@debbugs.gnu.org>; Fri, 06 Apr 2018 08:57:57 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;
h=mime-version:references:in-reply-to:from:date:message-id:subject:to;
bh=GkQokjXzfbXs6nc2vz9yz5GApOyPxHj6gNYDUCWpiXw=;
b=f7sd3Nomeh/nbwf/+rOOfixRuggWzgxo7iF7FrWxfkr3ZtG9q4Pbj9nWHnA/6+JpFb
cvgxS4HrxefpFf8OyLXNV1DOsBBEa0lX3VhgcKHDZ7CYauZ2OruQBm1wibpsWWNxjWqf
VkNmbaf9gtLcdVrjR/7JAA0eH2hO+JRzqkzCIGhQOxmJrfnrm7zdip8oRTIITTKLtd+S
l6+eiBIHXNM7G3mhNK0ZpIaRJbi4cr3lbVLajT1RQpUwGMeBY7oF3Ec7L0zyQ4ziyJYH
6g3dzbhylDwMqSTeQspSxU3sNei331g1zDu9qc5PqundZGD9OWEyvaNPAa1PjV97VrvE
Aw/Q==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20161025;
h=x-gm-message-state:mime-version:references:in-reply-to:from:date
:message-id:subject:to;
bh=GkQokjXzfbXs6nc2vz9yz5GApOyPxHj6gNYDUCWpiXw=;
b=UP2PTssPCgax59ps7pRtnihIoNvpGtUv4vCeofADyArklERLj2MxanbGqDYPvN4ffm
M6qTp8/SwHSqxaY9Q3NQ9YWvN4yOfYap+iYG7OlnQejAwPiC0+xfV50FHMk+HAc97q+Z
6NFXpQBtHmOGc3cATJQ0Qey78AxhZROeWWhxpkkJsG9KWNfonrb91rfxDxqoF6OcoG74
lLahM8rxGu2pa7iCNijLfkg6s0GdVv05jGyDKAY7qPD7VwZ3b3kji5ach/Qja3r5hm0A
ZaeFs0YEWH0CFkS2GBey/OjTIShYev72VTDTVpY8ZAGvCsPnbBOZ8/t3v8KDm9lKf3Ki
99Ew==
X-Gm-Message-State: ALQs6tBF/KU/pE6dYOhBqYhaHRVhzkgFgLdt2Wu+YCcS4xLAZXfeCgKQ
kLoimEiL+FjbwgYB7QFlAoEfY/FjfkjUf4bo5TdMgA==
X-Google-Smtp-Source: AIpwx4/lZkAcz+uHVCORzTDFjeHBq8K1GCaj094YnHdXuBh82jV3Obkv3kGB9Qe9mSMgBNMFxy0BW0/S/j1YgpjwX44=
X-Received: by 2002:a19:136a:: with SMTP id
j103-v6mr16270712lfi.19.1523030271252;
Fri, 06 Apr 2018 08:57:51 -0700 (PDT)
In-Reply-To:
X-BeenThere: debbugs-submit@debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]
X-Received-From: 208.118.235.43
X-BeenThere: bug-gnu-emacs@gnu.org
List-Id: "Bug reports for GNU Emacs,
the Swiss army knife of text editors"
List-Unsubscribe: ,
List-Archive:
List-Post:
List-Help:
List-Subscribe: ,
Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org
Original-Sender: "bug-gnu-emacs"
Xref: news.gmane.org gmane.emacs.bugs:144950
Archived-At:
--0000000000004cf3300569301e57
Content-Type: multipart/alternative; boundary="0000000000004cf32c0569301e55"
--0000000000004cf32c0569301e55
Content-Type: text/plain; charset="UTF-8"
Philipp schrieb am Fr., 6. Apr. 2018 um 03:25 Uhr:
>
> Loading the following file triggers an assertion failure:
>
> ;;; -*- lexical-binding: t; -*-
> (defvar 1)
>
> $ emacs -Q -batch -l /tmp/crash.el
> eval.c:772: Emacs fatal error: assertion failed: SYMBOLP (sym)
> Fatal error 6: Abort trapAbort trap: 6
>
> This is because Fdefvar lacks a CHECK_SYMBOL in the second branch
> (lexical binding but only one argument)
>
Here is a patch.
--0000000000004cf32c0569301e55
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Loading the following file triggers an assertion failure:
;;; -*- lexical-binding: t; -*-
(defvar 1)
$ emacs -Q -batch -l /tmp/crash.el
eval.c:772: Emacs fatal error: assertion failed: SYMBOLP (sym)
Fatal error 6: Abort trapAbort trap: 6
This is because Fdefvar lacks a CHECK_SYMBOL in the second branch
(lexical binding but only one argument)
Here is a patch.=C2=A0
--0000000000004cf32c0569301e55--
--0000000000004cf3300569301e57
Content-Type: text/plain; charset="US-ASCII";
name="0001-Avoid-undefined-behavior-in-defvar-Bug-31072.txt"
Content-Disposition: attachment;
filename="0001-Avoid-undefined-behavior-in-defvar-Bug-31072.txt"
Content-Transfer-Encoding: base64
Content-ID: <1629bad5afea30134f91>
X-Attachment-Id: 1629bad5afea30134f91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--0000000000004cf3300569301e57--