From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ulrich Mueller Newsgroups: gmane.emacs.bugs Subject: bug#18784: Coultdn't compile emacs-24.4 Date: Mon, 16 Mar 2015 17:26:32 +0100 Message-ID: <21767.1080.494409.524340@a1i15.kph.uni-mainz.de> References: <21763.19437.782573.339655@a1i15.kph.uni-mainz.de> <21763.21024.236293.665089@a1i15.kph.uni-mainz.de> <21766.40821.679834.521362@a1i15.kph.uni-mainz.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1426523243 8905 80.91.229.3 (16 Mar 2015 16:27:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 16 Mar 2015 16:27:23 +0000 (UTC) Cc: 18784@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Mar 16 17:27:12 2015 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YXXrC-0006YW-G7 for geb-bug-gnu-emacs@m.gmane.org; Mon, 16 Mar 2015 17:27:10 +0100 Original-Received: from localhost ([::1]:50466 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXXrB-0008KC-UB for geb-bug-gnu-emacs@m.gmane.org; Mon, 16 Mar 2015 12:27:09 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44674) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXXr8-00086z-K9 for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 12:27:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YXXr4-00089m-3y for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 12:27:06 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:50211) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXXr4-00089i-1Z for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 12:27:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1YXXr3-00011Q-Qg for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 12:27:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Ulrich Mueller Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 16 Mar 2015 16:27:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18784 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18784-submit@debbugs.gnu.org id=B18784.14265231983893 (code B ref 18784); Mon, 16 Mar 2015 16:27:01 +0000 Original-Received: (at 18784) by debbugs.gnu.org; 16 Mar 2015 16:26:38 +0000 Original-Received: from localhost ([127.0.0.1]:48779 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YXXqf-00010j-Lo for submit@debbugs.gnu.org; Mon, 16 Mar 2015 12:26:37 -0400 Original-Received: from a1www.kph.uni-mainz.de ([134.93.134.1]:38790) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YXXqd-00010a-5O for 18784@debbugs.gnu.org; Mon, 16 Mar 2015 12:26:36 -0400 Original-Received: from a1i15.kph.uni-mainz.de (a1i15.kph.uni-mainz.de [134.93.134.92]) by a1www.kph.uni-mainz.de (8.14.9/8.14.7) with ESMTP id t2GGQYht021849; Mon, 16 Mar 2015 17:26:34 +0100 Original-Received: from a1i15.kph.uni-mainz.de (localhost [127.0.0.1]) by a1i15.kph.uni-mainz.de (8.14.8/8.14.2) with ESMTP id t2GGQXJA013272; Mon, 16 Mar 2015 17:26:33 +0100 Original-Received: (from ulm@localhost) by a1i15.kph.uni-mainz.de (8.14.8/8.14.8/Submit) id t2GGQWun013268; Mon, 16 Mar 2015 17:26:32 +0100 In-Reply-To: X-Mailer: VM 8.2.0b under 24.3.1 (x86_64-pc-linux-gnu) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:100531 Archived-At: >>>>> On Mon, 16 Mar 2015, Stefan Monnier wrote: > Hmm... is `-nopie' a linker-option or a compiler-option? > IOW what about systems which use gcc to compile but something else > to link or vice-versa? Right. Also it seems that not all configurations of gcc will recognise the -nopie option, so we must laboriously test for it. Updated patch below. >From b3d5b10c10d7062b0da5c8316e787ae554f5c81a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ulrich=20M=C3=BCller?= Date: Mon, 16 Mar 2015 17:09:54 +0100 Subject: [PATCH] configure.ac: Add -nopie to LD_SWITCH_SYSTEM_TEMACS. * configure.ac (LD_SWITCH_SYSTEM_TEMACS): Add -nopie option if it is supported, in order to avoid segfaults in temacs. (Bug#18780) --- ChangeLog | 5 +++++ configure.ac | 15 +++++++++++++-- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/ChangeLog b/ChangeLog index 4f6523e..308b889 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2015-03-16 Ulrich Müller + + * configure.ac (LD_SWITCH_SYSTEM_TEMACS): Add -nopie option if it + is supported, in order to avoid segfaults in temacs. (Bug#18780) + 2015-03-02 Robert Pluim (tiny change) * configure.ac: Error out if with-file-notification=w32 is diff --git a/configure.ac b/configure.ac index d65494a..40ea5cb 100644 --- a/configure.ac +++ b/configure.ac @@ -4989,11 +4989,22 @@ case "$opsys" in esac ;; - openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;; - *) LD_SWITCH_SYSTEM_TEMACS= ;; esac +AC_CACHE_CHECK([whether the linker accepts -nopie], + [emacs_cv_prog_cc_nopie], + [emacs_save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -nopie" + AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], + [emacs_cv_prog_cc_nopie=yes], + [emacs_cv_prog_cc_nopie=no]) + LDFLAGS=$emacs_save_LDFLAGS]) +if test "$emacs_cv_prog_cc_nopie" = yes; then + # Disable PIE to avoid segfaults in temacs (bug#18780) + LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -nopie" +fi + if test x$ac_enable_profiling != x ; then case $opsys in *freebsd | gnu-linux) ;; -- 2.3.2