Debian Bug report logs - #657488
dbus-python: A few packaging anomolies in the -dbg packages

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Barry Warsaw <barry@python.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: dbus-python: A few packaging anomolies in the -dbg packages

Date: Thu, 26 Jan 2012 10:42:39 -0500

Package: dbus-python
Version: 1.0.0-1
Severity: normal

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Hi Simon.  First, thanks for 1.0.0 and incorporating Python 3 support.  This
is really fantastic.

I'm looking at merging this version over to Ubuntu, but comparing the
resulting .debs I've noticed a few weird things.  I want to point them out in
case they are bugs.  (I did notice that you made some different packaging
decisions than my previous patch, which of course is fine!  The change from
python-dbus-common to python-dbus-dev for example, is spot on.)

I'm debdiffing 0.84.0-2ubuntu3 from Ubuntu precise, which has my originally
proposed patches (both for Python 3 support and packaging) implemented as
quilt patches, against experimental's unchanged 1.0.0-1 package.  There are
some minor differences in the non-dbg packages, but these can be ignored.  The
main problem appears to be in the -dbg packages.

==============================
% debdiff python3-dbus-dbg_*.deb
[The following lists of changes regard files as different if they have
different names, permissions or owners.]

Files in second .deb but not in first
- -------------------------------------
- -rw-r--r--  root/root   /usr/lib/debug/.build-id/22/a8cbf47dc457752a68fc97b2513c46df0f75e9.debug
- -rw-r--r--  root/root   /usr/lib/debug/.build-id/97/59dab8af4f6050cf800ace862a0e35436b6074.debug
- -rw-r--r--  root/root   /usr/lib/debug/.build-id/c3/3e71ed5b196c2596dcf70428b42f1205566818.debug
- -rw-r--r--  root/root   /usr/lib/debug/.build-id/fc/a42cb6512ff7c0bc52a3f83b55e84edad3bdd7.debug

Files in first .deb but not in second
- -------------------------------------
- -rw-r--r--  root/root   /usr/lib/debug/usr/lib/python3/dist-packages/_dbus_bindings.cpython-32dmu.so
- -rw-r--r--  root/root   /usr/lib/debug/usr/lib/python3/dist-packages/_dbus_glib_bindings.cpython-32dmu.so

Control files: lines which differ (wdiff format)
- ------------------------------------------------
Depends: python3-dbg, python3-dbus (= [-0.84.0-2ubuntu3),-] {+1.0.0-1),+} libc6 (>= [-2.2.5),-] {+2.4),+} libdbus-1-3 (>= 1.2.16), libdbus-glib-1-2 (>= 0.78), libglib2.0-0 (>= 2.12.0)
Description: [-Debug-] {+debug+} build of the D-Bus Python {+3+} interface
 This package provides a version of the [-python-dbus-] {+python3-dbus+} package built for
 debugging versions of [-Python.-] {+Python 3, and debug symbols for python3-dbus.+}
Installed-Size: [-912-] {+496+}
Maintainer: [-Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>-]
[-Original-Maintainer:-] Utopia Maintenance Team <pkg-utopia-maintainers@lists.alioth.debian.org>
Version: [-0.84.0-2ubuntu3-] {+1.0.0-1+}
==============================

Specifically, notice the /usr/lib/debug/.build-id directory in 1.0.0-1.  This
seems like a leakage of a build artifact.  Also note that 0.84.0-2ubuntu3
includes /usr/lib/debug versions of the .so's.

I see something similar in the python-dbus-dbg* packages:

==============================
% debdiff python-dbus-dbg_*.deb
[The following lists of changes regard files as different if they have
different names, permissions or owners.]

Files in second .deb but not in first
- -------------------------------------
- -rw-r--r--  root/root   /usr/lib/debug/.build-id/34/b98d744c788d1d214290cdd096af7ea781eefd.debug
- -rw-r--r--  root/root   /usr/lib/debug/.build-id/36/f9ae64a9392400f6561cc900f6425e4129fe2b.debug
- -rw-r--r--  root/root   /usr/lib/debug/.build-id/da/93ad8dcf9700f17f26d18592fa16ae09f33ce3.debug
- -rw-r--r--  root/root   /usr/lib/debug/.build-id/fc/3c82e0c184941f174a5d25dedccffc2c2958ef.debug

Files in first .deb but not in second
- -------------------------------------
- -rw-r--r--  root/root   /usr/lib/debug/usr/lib/python2.7/dist-packages/_dbus_bindings.so
- -rw-r--r--  root/root   /usr/lib/debug/usr/lib/python2.7/dist-packages/_dbus_glib_bindings.so

Control files: lines which differ (wdiff format)
- ------------------------------------------------
Depends: {+python-dbg (>= 2.7),+} python-dbus (= [-0.84.0-2ubuntu3), python-dbg,-] {+1.0.0-1),+} libc6 (>= [-2.2.5),-] {+2.4),+} libdbus-1-3 (>= 1.2.16), libdbus-glib-1-2 (>= 0.78), libglib2.0-0 (>= [-2.12.0)-] {+2.12.0), python2.7-dbg, python-dbg (<< 2.8)+}
Description: [-Debug-] {+debug+} build of the D-Bus Python {+2+} interface
 debugging versions of [-Python.-] {+Python 2, and debug symbols for python-dbus.+}
Installed-Size: [-931-] {+505+}
Maintainer: [-Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>-]
[-Original-Maintainer:-] Utopia Maintenance Team <pkg-utopia-maintainers@lists.alioth.debian.org>
Version: [-0.84.0-2ubuntu3-] {+1.0.0-1+}
==============================

- -- System Information:
Debian Release: wheezy/sid
  APT prefers precise-updates
  APT policy: (500, 'precise-updates'), (500, 'precise-security'), (500, 'precise'), (100, 'precise-backports')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-10-generic (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

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Message #10 received at 657488@bugs.debian.org (full text, mbox, reply):

From: Michael Biebl <email@michaelbiebl.de>

To: Barry Warsaw <barry@python.org>, 657488@bugs.debian.org

Subject: Re: [Pkg-utopia-maintainers] Bug#657488: dbus-python: A few packaging anomolies in the -dbg packages

Date: Thu, 26 Jan 2012 16:55:32 +0100

[Message part 1 (text/plain, inline)]

On 26.01.2012 16:42, Barry Warsaw wrote:

> Files in second .deb but not in first
> -------------------------------------
> -rw-r--r--  root/root   /usr/lib/debug/.build-id/34/b98d744c788d1d214290cdd096af7ea781eefd.debug
> -rw-r--r--  root/root   /usr/lib/debug/.build-id/36/f9ae64a9392400f6561cc900f6425e4129fe2b.debug
> -rw-r--r--  root/root   /usr/lib/debug/.build-id/da/93ad8dcf9700f17f26d18592fa16ae09f33ce3.debug
> -rw-r--r--  root/root   /usr/lib/debug/.build-id/fc/3c82e0c184941f174a5d25dedccffc2c2958ef.debug

Not a bug. See the changelog of debhelper

debhelper (8.9.13) unstable; urgency=low
...
   * dh_strip: Use build-id in /usr/lib/debug in v9.
    Closes: #642158 Thanks, Jakub Wilk
...
 -- Joey Hess <joeyh@debian.org>  Fri, 09 Dec 2011 13:53:38 -0400


-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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Message #15 received at 657488@bugs.debian.org (full text, mbox, reply):

From: Simon McVittie <smcv@debian.org>

To: Barry Warsaw <barry@python.org>, 657488@bugs.debian.org

Subject: Re: Bug#657488: dbus-python: A few packaging anomolies in the -dbg packages

Date: Fri, 27 Jan 2012 09:45:24 +0000

On 26/01/12 15:42, Barry Warsaw wrote:
> I'm looking at merging this version over to Ubuntu, but comparing the
> resulting .debs I've noticed a few weird things.  I want to point them out in
> case they are bugs.

Thanks for pointing these out, but they're not bugs.

> Files in [experimental] but not in [Ubuntu]
> - -----------------------------------------
> - -rw-r--r--  root/root   /usr/lib/debug/.build-id/22/a8cbf47dc457752a68fc97b2513c46df0f75e9.debug
> - -rw-r--r--  root/root   /usr/lib/debug/.build-id/97/59dab8af4f6050cf800ace862a0e35436b6074.debug
> - -rw-r--r--  root/root   /usr/lib/debug/.build-id/c3/3e71ed5b196c2596dcf70428b42f1205566818.debug
> - -rw-r--r--  root/root   /usr/lib/debug/.build-id/fc/a42cb6512ff7c0bc52a3f83b55e84edad3bdd7.debug

These are separated debugging symbols for the _dbus_bindings and 
_dbus_glib_bindings module; there are four files because there's a 
version of each for python3.2 and another for python3.2-dbg. In the 
Python 2 package there are twice as many, because we support Python 2.6 
and 2.7 simultaneously.

(The move to "build IDs", which are some sort of hash of the compiler 
input and/or output, is to make sure that gdb never loads debug symbols 
that don't match the binary you're debugging.)

> Files in [Ubuntu] but not in [experimental]
> - -----------------------------------------
> - -rw-r--r--  root/root   /usr/lib/debug/usr/lib/python3/dist-packages/_dbus_bindings.cpython-32dmu.so
> - -rw-r--r--  root/root   /usr/lib/debug/usr/lib/python3/dist-packages/_dbus_glib_bindings.cpython-32dmu.so

These have effectively been renamed, to get one of the files in 
/usr/lib/debug/.build-id. (They're not shared libraries at all, despite 
their names: if you objdump them you'll find that they only contain 
debug symbols.)

I know Ubuntu does something else with debug symbols, so I'm not sure 
how this will translate into your packages, but all the files in 
/usr/lib/debug are debugging symbols for gdb.

> Installed-Size: [-912-] {+496+}

The debug symbols are also now compressed, so they're smaller; that's OK.

In private mail you also commented on the distribution in the changelog 
being UNRELEASED. That *is* a bug, albeit a minor one: it should say 
experimental, but I accidentally uploaded the final test build (from 
source exported just before the commit that changed UNRELEASED to 
experimental), rather than replacing it with a final build. There's no 
functional difference, though: I re-downloaded the source from Debian 
and diffed it against my git tree, and debian/changelog is the only 
difference.

    S

Message #20 received at 657488@bugs.debian.org (full text, mbox, reply):

From: Barry Warsaw <barry@python.org>

To: Simon McVittie <smcv@debian.org>

Cc: 657488@bugs.debian.org

Subject: Re: Bug#657488: dbus-python: A few packaging anomolies in the -dbg packages

Date: Fri, 27 Jan 2012 08:30:33 -0500

[Message part 1 (text/plain, inline)]

On Jan 27, 2012, at 09:45 AM, Simon McVittie wrote:

>Thanks for pointing these out, but they're not bugs.

Michael also pointed that out.  Thanks for the information!

>In private mail you also commented on the distribution in the changelog being
>UNRELEASED. That *is* a bug, albeit a minor one: it should say experimental,
>but I accidentally uploaded the final test build (from source exported just
>before the commit that changed UNRELEASED to experimental), rather than
>replacing it with a final build. There's no functional difference, though: I
>re-downloaded the source from Debian and diffed it against my git tree, and
>debian/changelog is the only difference.

Cool, no problem.  Martin Pitt pinged me about it on IRC and afaict, this
didn't have any effect on our sync'ing it from Debian.  I did a straight sync
to remove the Ubuntu delta and everything looks fine.

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Message #25 received at 657488-done@bugs.debian.org (full text, mbox, reply):

From: Simon McVittie <smcv@debian.org>

To: 657488-done@bugs.debian.org

Subject: Re: Bug#657488: dbus-python: A few packaging anomolies in the -dbg packages

Date: Wed, 9 May 2012 15:57:02 +0100

On Fri, 27 Jan 2012 at 09:45:24 +0000, Simon McVittie wrote:
> Thanks for pointing these out, but they're not bugs.

Closing.

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