From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Petr Hracek Newsgroups: gmane.emacs.bugs Subject: bug#20614: Segmentation fault when building on Power8 Little Endian Date: Tue, 22 Sep 2015 12:17:10 +0200 Message-ID: <56012AA6.7010702@redhat.com> References: <555C3E3C.4090700@redhat.com> <1gpp5vi5xn.fsf@fencepost.gnu.org> <555DD5D3.3020207@redhat.com> <55A3A08A.9060905@redhat.com> <55A4BFB7.3010208@redhat.com> <55F95275.4040209@redhat.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="------------010901060309000002030100" X-Trace: ger.gmane.org 1442917157 6975 80.91.229.3 (22 Sep 2015 10:19:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 22 Sep 2015 10:19:17 +0000 (UTC) To: 20614@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Sep 22 12:19:04 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 1ZeKf8-0004CB-Q7 for geb-bug-gnu-emacs@m.gmane.org; Tue, 22 Sep 2015 12:19:03 +0200 Original-Received: from localhost ([::1]:38230 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZeKf8-00031M-6e for geb-bug-gnu-emacs@m.gmane.org; Tue, 22 Sep 2015 06:19:02 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36022) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZeKeb-0002uY-TQ for bug-gnu-emacs@gnu.org; Tue, 22 Sep 2015 06:18:56 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZeKeA-0007VS-Cf for bug-gnu-emacs@gnu.org; Tue, 22 Sep 2015 06:18:29 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:49056) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZeKeA-0007VF-9T for bug-gnu-emacs@gnu.org; Tue, 22 Sep 2015 06:18:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1ZeKe9-0003X0-Ky for bug-gnu-emacs@gnu.org; Tue, 22 Sep 2015 06:18:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Petr Hracek Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 22 Sep 2015 10:18:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 20614 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 20614-submit@debbugs.gnu.org id=B20614.144291703913484 (code B ref 20614); Tue, 22 Sep 2015 10:18:01 +0000 Original-Received: (at 20614) by debbugs.gnu.org; 22 Sep 2015 10:17:19 +0000 Original-Received: from localhost ([127.0.0.1]:41266 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZeKdR-0003VN-PQ for submit@debbugs.gnu.org; Tue, 22 Sep 2015 06:17:19 -0400 Original-Received: from mx1.redhat.com ([209.132.183.28]:55220) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZeKdN-0003V9-Bc for 20614@debbugs.gnu.org; Tue, 22 Sep 2015 06:17:15 -0400 Original-Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 7FBCA8F302 for <20614@debbugs.gnu.org>; Tue, 22 Sep 2015 10:17:12 +0000 (UTC) Original-Received: from [10.34.4.133] (unused-4-133.brq.redhat.com [10.34.4.133]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t8MAHAGE019607 for <20614@debbugs.gnu.org>; Tue, 22 Sep 2015 06:17:11 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 In-Reply-To: <55F95275.4040209@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 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: 208.118.235.43 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:106807 Archived-At: This is a multi-part message in MIME format. --------------010901060309000002030100 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit I have a question: would it be possible to remove unexelf.c code and replace them with a "just map a file with pre-compiled byte code" as advice me a colleagues in Red Hat? It seems that this code is also incompatible with PIE. Together with our binutils-2.23.52.0.1-54 (https://bugzilla.redhat.com/show_bug.cgi?id=1247126) it segfaults each time. Now. What do you think about it? Nowadays I have commented out the code mentioned on line http://git.savannah.gnu.org/cgit/emacs.git/tree/src/unexelf.c?h=emacs-24#n869 and afterwards is fails with Finding pointers to doc strings... Finding pointers to doc strings...done Dumping under the name emacs /bin/sh: line 7: 15764 Segmentation fault `/bin/pwd`/temacs --batch --load loadup bootstrap make[2]: *** [bootstrap-emacs] Error 1 make[2]: Leaving directory `/builddir/build/BUILD/emacs-24.3/build-gtk/src' Important version of packages: glibc-2.17-103.el7.ppc64le gcc-4.8.5-4.el7.ppc64le binutils-2.23.52.0.1-54.el7.ppc64le Greetings Petr On 09/16/2015 01:28 PM, Petr Hracek wrote: > On 07/14/2015 09:52 AM, Petr Hracek wrote: >> On 07/13/2015 03:16 PM, Andreas Schwab wrote: >>> Petr Hracek writes: >>>> Does emacs-24.3 support ppc64le? >>> https://build.opensuse.org/package/binaries/openSUSE:13.2/emacs?repository=ports >>> http://download.opensuse.org/ports/ppc/distribution/13.2/repo/oss/suse/ppc64le/emacs-x11-24.3-17.2.2.ppc64le.rpm >>> Andreas. >> I have find out that the error message Loading >> /home/phracek/rpmbuild/BUILD/emacs-24.3/lisp/tooltip.el (source)... >> Finding pointers to doc strings... Finding pointers to doc >> strings...done Dumping under the name emacs emacs: Program segment >> above .bss in >> /home/phracek/rpmbuild/BUILD/emacs-24.3/build-gtk/src/temacs make[2]: >> *** [bootstrap-emacs] Error 1 comes from file src/unexelf.c line 860 >> (emacs-24.3) What this function does? I saw in openSUSE SRPM that >> option --with-wide-int is used. In Fedora or RHEL we are not using >> it. Options which are used for compiling are: ./configure >> --build=powerpc64le-redhat-linux-gnu >> --host=powerpc64le-redhat-linux-gnu --program-prefix= >> --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr >> --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc >> --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 >> --libexecdir=/usr/libexec --localstatedir=/var >> --sharedstatedir=/var/lib --mandir=/usr/share/man >> --infodir=/usr/share/info --with-dbus --with-gif --with-jpeg >> --with-png --with-rsvg --with-tiff --with-xft --with-xpm >> --with-x-toolkit=gtk3 --with-gpm=no >> build_alias=powerpc64le-redhat-linux-gnu >> host_alias=powerpc64le-redhat-linux-gnu CFLAGS=-DMAIL_USE_LOCKF -O2 >> -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions >> -fstack-protector-strong --param=ssp-buffer-size=4 >> -grecord-gcc-switches -m64 -mcpu=power7 -mtune=power8 >> LDFLAGS=-Wl,-z,relro --no-create --no-recursion > Building emacs package on Fedora or even on OpenSuse works fine. But > under RHEL-7 still fails. Emacs is build up with full RELRO, though. > Version of packages which are used for compilation are: gcc-4.8.3 > automake-1.13.4 autoconf-2.69 Compilation flags are: > ./configure --build=ppc64le-redhat-linux-gnu --host=ppc64le-redhat-linux-gnu --program-prefix= --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --enable-link-time-optimization --with-dbus --with-gif --with-jpeg --with-png --with-rsvg --with-tiff --with-xft --with-xpm --with-x-toolkit=gtk3 --with-gpm=no > + LDFLAGS=-Wl,-z,relro > + export LDFLAGS > + CFLAGS='-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mcpu=power7 -mtune=power8' > + export CFLAGS > + CXXFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mcpu=power7 -mtune=power8' > + export CXXFLAGS > + FFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mcpu=power7 -mtune=power8 -I/usr/lib64/gfortran/modules' > + export FFLAGS > + FCFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mcpu=power7 -mtune=power8 -I/usr/lib64/gfortran/modules' > + export FCFLAGS > + LDFLAGS=-Wl,-z,relro > + export LDFLAGS > emacs is SPEC file is compiled so that in %prep section is: - setup - > patching some files - ./autogen.sh %build section for emacs-gtk: - > ./configure is called. - make bootstrap - make %build section for > emacs-nox is: - ./configure is called. - make Is this correct? > Compilator has settings like: > CC='gcc -std=gnu99' CFLAGS='-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mcpu=power7 -mtune=power8 -flto=32' CPPFLAGS='' \ > LDFLAGS='-Wl,-z,relro -Wl,-znocombreloc ' MAKE='make' > gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I/builddir/build/BUILD/emacs-24.3/lib -I../src -I/builddir/build/BUILD/emacs-24.3/src -DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mcpu=power7 -mtune=power8 -flto=32 -c /builddir/build/BUILD/emacs-24.3/lib/allocator.c > linker has a settings like: > gcc -std=gnu99 -I. -I../src -I../lib -I/builddir/build/BUILD/emacs-24.3/lib-src -I/builddir/build/BUILD/emacs-24.3/lib-src/../src -I/builddir/build/BUILD/emacs-24.3/lib-src/../lib -Wl,-z,relro -Wl,-znocombreloc -DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mcpu=power7 -mtune=power8 -flto=32 -DEMACS_NAME="\"GNU Emacs\"" \ > -DVERSION="\"24.3\"" /builddir/build/BUILD/emacs-24.3/lib-src/etags.c \ > regex.o ../lib/libgnu.a -o etags > > Before segmentation fault build log is: > if test "no" = "yes"; then \ > rm -f bootstrap-emacs; \ > ln temacs bootstrap-emacs; \ > else \ > `/bin/pwd`/temacs --batch --load loadup bootstrap || exit 1; \ > test "X" = X || -zex emacs; \ > mv -f emacs bootstrap-emacs; \ > fi > Loading loadup.el (source)... > Using load-path (/builddir/build/BUILD/emacs-24.3/lisp /builddir/build/BUILD/emacs-24.3/lisp/emacs-lisp /builddir/build/BUILD/emacs-24.3/lisp/language /builddir/build/BUILD/emacs-24.3/lisp/international /builddir/build/BUILD/emacs-24.3/lisp/textmodes) > Loading emacs-lisp/byte-run (source)... > Loading emacs-lisp/backquote (source)... > [ .. snip ...]dir/build/BUILD/emacs-24.3/lisp/vc/vc-hooks.el (source)... > Loading /builddir/build/BUILD/emacs-24.3/lisp/vc/ediff-hook.el (source)... > Loading /builddir/build/BUILD/emacs-24.3/lisp/tooltip.el (source)... > Finding pointers to doc strings... > Finding pointers to doc strings...done > Dumping under the name emacs > emacs: Program segment above .bss in /builddir/build/BUILD/emacs-24.3/build-gtk/src/temacs > make[2]: *** [bootstrap-emacs] Error 1 > make[2]: Leaving directory `/builddir/build/BUILD/emacs-24.3/build-gtk/src' > make[1]: *** [src] Error 2 > Part of code which is relevant is from src/unexelf.c: for (n = > new_file_h->e_phnum; --n >= 0; ) { /* Compute maximum of all > requirements for alignment of section. */ ElfW (Word) alignment > = (NEW_PROGRAM_H (n)).p_align; if ((OLD_SECTION_H > (old_bss_index)).sh_addralign > alignment) alignment = > OLD_SECTION_H (old_bss_index).sh_addralign; #ifdef __sgi /* > According to r02kar@x4u2.desy.de (Karsten Kuenne) and > oliva@gnu.org (Alexandre Oliva), on IRIX 5.2, we always get > "Program segment above .bss" when dumping when the executable > doesn't have an sbss section. */ if (old_sbss_index != -1) > #endif /* __sgi */ if (NEW_PROGRAM_H (n).p_vaddr + NEW_PROGRAM_H > (n).p_filesz > (old_sbss_index == -1 ? old_bss_addr > : round_up (old_bss_addr, alignment))) *fatal ("Program segment > above .bss in %s", old_name);* if (NEW_PROGRAM_H (n).p_type == > PT_LOAD If I understand there shouldn't be a problem on ppc64le. But I > don't understand a code at all. > -- > Petr Hracek > Software Engineer > Developer Experience > Red Hat, Inc > Mob: +420777056169 > email:phracek@redhat.com -- Petr Hracek Software Engineer Developer Experience Red Hat, Inc Mob: +420777056169 email: phracek@redhat.com --------------010901060309000002030100 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit
I have a question:

would it be possible to remove unexelf.c code and replace them with a
"just map a file with pre-compiled byte code" as advice me a colleagues in Red Hat?

It seems that this code is also incompatible with PIE.

Together with our binutils-2.23.52.0.1-54 (https://bugzilla.redhat.com/show_bug.cgi?id=1247126)
it segfaults each time. Now.
What do you think about it?

Nowadays I have commented out the code mentioned on line
http://git.savannah.gnu.org/cgit/emacs.git/tree/src/unexelf.c?h=emacs-24#n869
and afterwards is fails with 
Finding pointers to doc strings...
Finding pointers to doc strings...done
Dumping under the name emacs
/bin/sh: line 7: 15764 Segmentation fault      `/bin/pwd`/temacs --batch --load loadup bootstrap
make[2]: *** [bootstrap-emacs] Error 1
make[2]: Leaving directory `/builddir/build/BUILD/emacs-24.3/build-gtk/src'
Important version of packages:
glibc-2.17-103.el7.ppc64le
gcc-4.8.5-4.el7.ppc64le
binutils-2.23.52.0.1-54.el7.ppc64le
Greetings
Petr


On 09/16/2015 01:28 PM, Petr Hracek wrote:


  
    
  
  
    
On 07/14/2015 09:52 AM, Petr Hracek
      wrote:

    

    
On
      07/13/2015 03:16 PM, Andreas Schwab wrote:
      

      
Petr Hracek <phracek@redhat.com>
        writes:
        

        

        
Does emacs-24.3 support ppc64le?
          

        

https://build.opensuse.org/package/binaries/openSUSE:13.2/emacs?repository=ports
        

http://download.opensuse.org/ports/ppc/distribution/13.2/repo/oss/suse/ppc64le/emacs-x11-24.3-17.2.2.ppc64le.rpm
        

        

        Andreas.
        

        

      

      I have find out that the error message
      

      Loading /home/phracek/rpmbuild/BUILD/emacs-24.3/lisp/tooltip.el
      (source)...
      

      Finding pointers to doc strings...
      

      Finding pointers to doc strings...done
      

      Dumping under the name emacs
      

      emacs: Program segment above .bss in
      /home/phracek/rpmbuild/BUILD/emacs-24.3/build-gtk/src/temacs
      

      make[2]: *** [bootstrap-emacs] Error 1
      

      

      comes from file src/unexelf.c line 860 (emacs-24.3)
      

      What this function does?
      

      I saw in openSUSE SRPM that option --with-wide-int is used.
      

      In Fedora or RHEL we are not using it.
      

      

      Options which are used for compiling are:
      

      ./configure --build=powerpc64le-redhat-linux-gnu
      --host=powerpc64le-redhat-linux-gnu --program-prefix=
      --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr
      --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
      --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64
      --libexecdir=/usr/libexec --localstatedir=/var
      --sharedstatedir=/var/lib --mandir=/usr/share/man
      --infodir=/usr/share/info --with-dbus --with-gif --with-jpeg
      --with-png --with-rsvg --with-tiff --with-xft --with-xpm
      --with-x-toolkit=gtk3 --with-gpm=no
      build_alias=powerpc64le-redhat-linux-gnu
      host_alias=powerpc64le-redhat-linux-gnu CFLAGS=-DMAIL_USE_LOCKF
      -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
      -fstack-protector-strong --param=ssp-buffer-size=4
      -grecord-gcc-switches   -m64 -mcpu=power7 -mtune=power8
      LDFLAGS=-Wl,-z,relro  --no-create --no-recursion
      

      

    

    Building emacs package on Fedora or even on OpenSuse works fine.

    But under RHEL-7 still fails.

    Emacs is build up with full RELRO, though.

    Version of packages which are used for compilation are:

    gcc-4.8.3

    automake-1.13.4

    autoconf-2.69

    Compilation flags are: 

    
    
./configure --build=ppc64le-redhat-linux-gnu --host=ppc64le-redhat-linux-gnu --program-prefix= --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --enable-link-time-optimization --with-dbus --with-gif --with-jpeg -
 -with-png --with-rsvg --with-tiff --with-xft --with-xpm --with-x-toolkit=gtk3 --with-gpm=no

    

    
    
+ LDFLAGS=-Wl,-z,relro
+ export LDFLAGS
+ CFLAGS='-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mcpu=power7 -mtune=power8'
+ export CFLAGS
+ CXXFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mcpu=power7 -mtune=power8'
+ export CXXFLAGS
+ FFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mcpu=power7 -mtune=power8 -I/usr/lib64/gfortran/modules'
+ export FFLAGS
+ FCFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mcpu=power7 -mtune=power8 -I/usr/lib64/gfortran/modules'
+ export FCFLAGS
+ LDFLAGS=-Wl,-z,relro
+ export LDFLAGS

    emacs is SPEC file is compiled so that 

    in %prep section is:

    - setup

    - patching some files

    - ./autogen.sh

    

    %build section for emacs-gtk:

    - ./configure is called.

    - make bootstrap

    - make

    

    %build section for emacs-nox is:

    - ./configure is called.

    - make

    

    Is this correct?

    

    Compilator has settings like:

    
    
CC='gcc -std=gnu99' CFLAGS='-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mcpu=power7 -mtune=power8 -flto=32' CPPFLAGS='' \
  LDFLAGS='-Wl,-z,relro -Wl,-znocombreloc ' MAKE='make'

    
    
gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I/builddir/build/BUILD/emacs-24.3/lib -I../src -I/builddir/build/BUILD/emacs-24.3/src      -DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mcpu=power7 -mtune=power8 -flto=32 -c /builddir/build/BUILD/emacs-24.3/lib/allocator.c

    linker has a settings like:

    
    
gcc -std=gnu99     -I. -I../src -I../lib -I/builddir/build/BUILD/emacs-24.3/lib-src -I/builddir/build/BUILD/emacs-24.3/lib-src/../src -I/builddir/build/BUILD/emacs-24.3/lib-src/../lib  -Wl,-z,relro -Wl,-znocombreloc   -DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mcpu=power7 -mtune=power8 -flto=32 -DEMACS_NAME="\"GNU Emacs\"" \
  -DVERSION="\"24.3\"" /builddir/build/BUILD/emacs-24.3/lib-src/etags.c \
  regex.o ../lib/libgnu.a  -o etags

Before segmentation fault build log is:
if test "no" = "yes"; then \
  rm -f bootstrap-emacs; \
  ln temacs bootstrap-emacs; \
else \
  `/bin/pwd`/temacs --batch --load loadup bootstrap || exit 1; \
  test "X" = X ||  -zex emacs; \
  mv -f emacs bootstrap-emacs; \
fi
Loading loadup.el (source)...
Using load-path (/builddir/build/BUILD/emacs-24.3/lisp /builddir/build/BUILD/emacs-24.3/lisp/emacs-lisp /builddir/build/BUILD/emacs-24.3/lisp/language /builddir/build/BUILD/emacs-24.3/lisp/international /builddir/build/BUILD/emacs-24.3/lisp/textmodes)
Loading emacs-lisp/byte-run (source)...
Loading emacs-lisp/backquote (source)...
[ .. snip ...]dir/build/BUILD/emacs-24.3/lisp/vc/vc-hooks.el (source)...
Loading /builddir/build/BUILD/emacs-24.3/lisp/vc/ediff-hook.el (source)...
Loading /builddir/build/BUILD/emacs-24.3/lisp/tooltip.el (source)...
Finding pointers to doc strings...
Finding pointers to doc strings...done
Dumping under the name emacs
emacs: Program segment above .bss in /builddir/build/BUILD/emacs-24.3/build-gtk/src/temacs
make[2]: *** [bootstrap-emacs] Error 1
make[2]: Leaving directory `/builddir/build/BUILD/emacs-24.3/build-gtk/src'
make[1]: *** [src] Error 2

Part of code which is relevant is from src/unexelf.c:
  for (n = new_file_h->e_phnum; --n >= 0; )
    {
      /* Compute maximum of all requirements for alignment of section.  */
      ElfW (Word) alignment = (NEW_PROGRAM_H (n)).p_align;
      if ((OLD_SECTION_H (old_bss_index)).sh_addralign > alignment)
    alignment = OLD_SECTION_H (old_bss_index).sh_addralign;

#ifdef __sgi
      /* According to r02kar@x4u2.desy.de (Karsten Kuenne)
         and oliva@gnu.org (Alexandre Oliva), on IRIX 5.2, we
         always get "Program segment above .bss" when dumping
         when the executable doesn't have an sbss section.  */
      if (old_sbss_index != -1)
#endif /* __sgi */
      if (NEW_PROGRAM_H (n).p_vaddr + NEW_PROGRAM_H (n).p_filesz
      > (old_sbss_index == -1
         ? old_bss_addr
         : round_up (old_bss_addr, alignment)))
      fatal ("Program segment above .bss in %s", old_name);

      if (NEW_PROGRAM_H (n).p_type == PT_LOAD

If I understand there shouldn't be a problem on ppc64le.
But I don't understand a code at all.


-- 
Petr Hracek
Software Engineer
Developer Experience
Red Hat, Inc
Mob: +420777056169
email: phracek@redhat.com







-- 
Petr Hracek
Software Engineer
Developer Experience
Red Hat, Inc
Mob: +420777056169
email: phracek@redhat.com

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