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Re: building/using address-sanitizer-enabled emacs?


From: Eli Zaretskii
Subject: Re: building/using address-sanitizer-enabled emacs?
Date: Wed, 17 May 2017 05:24:36 +0300

> Cc: address@hidden
> From: Paul Eggert <address@hidden>
> Date: Tue, 16 May 2017 14:49:46 -0700
> 
> > Indeed, I believe the problem you reported is unrelated to unexec.
> 
> You're right, I didn't read Jim's message carefully enough. I see that 
> the AddressSanitizer code suffered some bitrot since I last got it 
> working; among other things its output was being discarded on Fedora 25 
> x86-64, which at first gave me a false sense of security.... I installed 
> the attached patches to work around the GCC problem that Jim reported, 
> the improper output discard, and one minor memory leak uncovered by 
> AddressSanitizer.  When I run Emacs with AddressSanitizer now, it 
> reports some other minor memory leaks, almost all from the fontconfig 
> library. I do not observe any problems with SAFE_ALLOCA.

Thanks.  But isn't it strange that none of the changes you made is
related to starting a sub-process, which was where the original report
came from?



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