GNU bug report logs - #20215
25.0.50; Support compilation as PIE

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Glenn Morris <rgm <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#20215: closed (25.0.50; Support compilation as PIE)
Date: Thu, 05 Sep 2019 22:01:01 +0000

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Your message dated Thu, 05 Sep 2019 18:00:26 -0400
with message-id <9iimq6csjp.fsf <at> fencepost.gnu.org>
and subject line Re: bug#20215: 25.0.50; Support compilation as PIE
has caused the debbugs.gnu.org bug report #20215,
regarding 25.0.50; Support compilation as PIE
to be marked as done.

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


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20215: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20215
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From: Philipp Stephani <p.stephani2 <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.0.50; Support compilation as PIE
Date: Fri, 27 Mar 2015 22:42:39 +0100

Currently when trying to compile as a position-independent executable,
e.g.

./configure CFLAGS=-fPIE LDFLAGS=-pie && make

Emacs segfaults when dumping.



In GNU Emacs 25.0.50.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.8)
 of 2014-12-01 on touchstone.was.corp.google.com, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11501000
System Description:	Ubuntu 14.04 LTS

Configured using:
 `configure --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/25.0.50/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.0.50/site-lisp:/usr/share/emacs/site-lisp
 --with-crt-dir=/usr/lib/x86_64-linux-gnu --build x86_64-linux-gnu
 --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/25.0.50/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.0.50/site-lisp:/usr/share/emacs/site-lisp
 --with-crt-dir=/usr/lib/x86_64-linux-gnu --with-x=yes
 --with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2
 -fstack-protector --param=ssp-buffer-size=4 -Wformat
 -Werror=format-security -Wall' CPPFLAGS=-D_FORTIFY_SOURCE=2
 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro''

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
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  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
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  auto-compression-mode: t
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Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
None found.

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Memory information:
((conses 16 76108 3865)
 (symbols 48 18176 0)
 (miscs 40 38 99)
 (strings 32 11196 4583)
 (string-bytes 1 304089)
 (vectors 16 10053)
 (vector-slots 8 395236 9639)
 (floats 8 72 61)
 (intervals 56 228 1)
 (buffers 976 11)
 (heap 1024 32389 968))

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

From: Glenn Morris <rgm <at> gnu.org>
To: 20215-done <at> debbugs.gnu.org
Subject: Re: bug#20215: 25.0.50; Support compilation as PIE
Date: Thu, 05 Sep 2019 18:00:26 -0400

Version: 27.1

>> ... it should be replaced by a portable dumper.

And lo, it was.

Compiling with -fPIE seems to work with the portable dumper that will be
the default for Emacs 27.1 onwards.

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