GNU bug report logs - #24065
commit 09ece4d341a7 (Restore the calloc family) causes miscompile for gcc-5 and higher

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#24065: closed (commit 09ece4d341a7 (Restore the calloc
 family) causes miscompile for gcc-5 and higher)
Date: Tue, 26 Jul 2016 07:09:01 +0000

[Message part 1 (text/plain, inline)]

Your message dated Tue, 26 Jul 2016 09:08:22 +0200
with message-id <84736ae6-cbdc-c6e2-4172-bfb9786f0b05 <at> cs.ucla.edu>
and subject line Re: commit 09ece4d341a7 (Restore the calloc family) causes miscompile for gcc-5 and higher
has caused the debbugs.gnu.org bug report #24065,
regarding commit 09ece4d341a7 (Restore the calloc family) causes miscompile for gcc-5 and higher
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
24065: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=24065
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Markus Trippelsdorf <markus <at> trippelsdorf.de>
To: bug-gnu-emacs <at> gnu.org
Cc: Wolfgang Jenkner <wjenkner <at> inode.at>
Subject: commit 09ece4d341a7 (Restore the calloc family) causes miscompile
 for gcc-5 and higher
Date: Mon, 25 Jul 2016 09:22:32 +0200

commit 09ece4d341a7e07fab7be22868ebcadae8641c79
Author: Wolfgang Jenkner <wjenkner <at> inode.at>
Date:   Tue Feb 9 15:04:40 2016 -0800

    Restore the calloc family.

causes gcc-5 and higher to compile calloc to an endless loop.
-fno-builtin-malloc should be used to work around the problem.

See: https://gcc.gnu.org/ml/gcc-help/2015-03/msg00109.html
for a similar example.


-- 
Markus

[Message part 3 (message/rfc822, inline)]

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Wolfgang Jenkner <wjenkner <at> inode.at>, markus <at> trippelsdorf.de
Cc: 24065-done <at> debbugs.gnu.org
Subject: Re: commit 09ece4d341a7 (Restore the calloc family) causes miscompile
 for gcc-5 and higher
Date: Tue, 26 Jul 2016 09:08:22 +0200

On 07/25/2016 05:48 PM, Wolfgang Jenkner wrote:
> IIUC, this commit removes  the declaration of __malloc_initialize_hook,
> so the emacs configure check for "whether malloc is Doug Lea style"
> will fail.

This problem should be fixed on Emacs master and emacs-25, as well as in 
the current release candidate for Emacs 25 
<ftp://alpha.gnu.org/gnu/emacs/pretest/emacs-25.1-rc1.tar.xz>. If you're 
still observing the problem in any of these editions of Emacs, please 
let us know. In the meantime I will close the bug report as I think this 
bug is fixed now.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.