GNU bug report logs - #23529
Request for fixing randomize_va_space build issues

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Message #18 received at 23529 <at> debbugs.gnu.org (full text, mbox):

From: Philippe Vaucher <philippe.vaucher <at> gmail.com>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: 23529 <at> debbugs.gnu.org
Subject: Re: Request for fixing randomize_va_space build issues
Date: Wed, 18 May 2016 09:53:52 +0200

> Yes, because when building emacs it calls ./temacs which calls
> "personality" like here
> https://github.com/emacs-mirror/emacs/blob/master/src/emacs.c#L802-819
> This basically does the same as disabling randomize_va_space.

For information, I also opened an issue with docker because it might
be an ubuntu:16.04/seccomp issue
https://github.com/docker/docker/issues/22801

I'll keep you posted, but it's interesting that emacs needs
`personality` syscalls in order to build. I'm curious about why there
is this somewhat intermediate "temacs" binary that seems to have the
ability to dump itself into the final binary.

Philippe

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