Bug#780000: marked as done (gcc-4.9: LTO makes the build unreproducible)
Your message dated Fri, 10 Apr 2015 22:18:36 +0000
with message-id <E1YghG0-0004Y1-HS@franck.debian.org>
and subject line Bug#777753: fixed in apt-cacher-ng 0.8.1-1
has caused the Debian Bug report #777753,
regarding gcc-4.9: LTO makes the build unreproducible
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
777753: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777753
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
- To: Debian Bug Tracking System <submit@bugs.debian.org>
- Subject: gcc-4.9: LTO makes the build unreproducible
- From: Thorsten Glaser <tg@mirbsd.de>
- Date: Sat, 07 Mar 2015 22:36:26 +0000
- Message-id: <20150307223626.2916.5404.reportbug@tglase-eee.lan.tarent.de>
Package: gcc-4.9
Version: 4.9.2-10
Severity: minor
With the attached file, or really any program (e.g. src:pax):
1$ gcc -O2 -g -fPIE -fstack-protector-strong -flto=jobserver -c bottles.c
2$ gcc -O2 -g -fPIE -fstack-protector-strong -flto=jobserver -o x1 bottles.o
3$ gcc -O2 -g -fPIE -fstack-protector-strong -flto=jobserver -o x2 bottles.o
4$ md5sum x1 x2
9d58f432cfe6437fd83a807578400efe x1
a57d1253be60b9a520c140e9c55e5b47 x2
Removing “-flto=jobserver” from line #1 (!) makes it succeed.
If LTO information is included in the object file, even not
using LTO during link (line #2 and #3) creates diverging output.
While I like the reproducible builds effort in Debian, I kinda
don’t want to eliminate LTO for it… though src:mksh hasn’t been
using LTO for a while, as it regularily breaks in newer versions
of GCC…
-- System Information:
Debian Release: 8.0
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 3.16.0-4-686-pae (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/lksh
Init: sysvinit (via /sbin/init)
Versions of packages gcc-4.9 depends on:
ii binutils 2.25-5
ii cpp-4.9 4.9.2-10
ii gcc-4.9-base 4.9.2-10
ii libc6 2.19-15
ii libcloog-isl4 0.18.2-1+b2
ii libgcc-4.9-dev 4.9.2-10
ii libgmp10 2:6.0.0+dfsg-6
ii libisl10 0.12.2-2
ii libmpc3 1.0.3-1
ii libmpfr4 3.1.2-3
ii zlib1g 1:1.2.8.dfsg-2+b1
Versions of packages gcc-4.9 recommends:
ii libc6-dev 2.19-15
Versions of packages gcc-4.9 suggests:
pn gcc-4.9-doc <none>
pn gcc-4.9-locales <none>
pn gcc-4.9-multilib <none>
pn libasan1-dbg <none>
pn libatomic1-dbg <none>
pn libcilkrts5-dbg <none>
pn libgcc1-dbg <none>
pn libgomp1-dbg <none>
pn libitm1-dbg <none>
pn liblsan0-dbg <none>
pn libquadmath0-dbg <none>
pn libtsan0-dbg <none>
pn libubsan0-dbg <none>
-- no debconf information
/* $MirOS: contrib/hosted/tg/hellow/bottles.c,v 1.1 2011/04/02 19:49:44 tg Exp $ */
#include <stdio.h>
int
main(void)
{
int b;
for (b = 99; b >= 0; b--) {
switch (b) {
case 0:
printf("No more bottles of beer on the wall, no more bottles of beer.\n");
printf("Go to the store and buy some more, 99 bottles of beer on the wall.\n");
break;
case 1:
printf("1 bottle of beer on the wall, 1 bottle of beer.\n");
printf("Take one down and pass it around, no more bottles of beer on the wall.\n\n");
break;
default:
printf("%d bottles of beer on the wall, %d bottles of beer.\n", b, b);
printf("Take one down and pass it around, %d %s of beer on the wall.\n\n",
b - 1, ((b - 1) > 1) ? "bottles" : "bottle");
break;
}
}
return (0);
}
--- End Message ---
--- Begin Message ---
Source: apt-cacher-ng
Source-Version: 0.8.1-1
We believe that the bug you reported is fixed in the latest version of
apt-cacher-ng, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 777753@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Eduard Bloch <blade@debian.org> (supplier of updated apt-cacher-ng package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Fri, 10 Apr 2015 23:40:20 +0200
Source: apt-cacher-ng
Binary: apt-cacher-ng
Architecture: source
Version: 0.8.1-1
Distribution: unstable
Urgency: low
Maintainer: Eduard Bloch <blade@debian.org>
Changed-By: Eduard Bloch <blade@debian.org>
Description:
apt-cacher-ng - caching proxy server for software repositories
Closes: 734581 777753 779739 780550 780555 781328 781364 781447 781672 781921 782013 782026
Changes:
apt-cacher-ng (0.8.1-1) unstable; urgency=low
.
* New upstream version
+ transition to libsystemd without -daemon where possible (closes: #779739)
+ LTO disabled by default (closes: #777753)
+ *.o file download as volatile type (LP: #1078224)
+ more Fedora mirrors (Carlos Maddela, closes: #780555)
+ corrects handling of SPfilePatternEx (Carlos Maddela, closes: #780550)
* Debconf question to enable HTTP tunnels, e.g. for https (closes: #734581)
* Debconf translation updates: German (Holger Wansing, closes: #781921),
French (Jean-Baka Domelevo Entfellner, closes: #782026), Italian (Beatrice
Torracca, closes: #782013), Dutch (Frans Spiesschaert), Polish (Łukasz
<BartekChom@poczta.onet.pl>), Swedish (Martin Bagge, Anders Jonsson,
closes: #781672), Czech (Miroslav Kure, closes: #781447), Russian (Yuri
Kozlov, closes: #781364), Danish (Joe Dalton, closes: #781328)
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