Mailinglist Archive: opensuse-factory (297 mails)

[Andreas Jaeger <aj@xxxxxxx>]

Here're the minutes from last week's meeting.

Topics:
* Use fast linking style:

  The linker & glibc in 10.2 support the --hash-style=both (or just
  gnu) flag, which halves linking time [ still a major cost on all
  startup]. Unfortunately - it seems we only re-compiled glibc with
  this flag, and not all the other applications in the system :-) Risk
  wise this is a no-brainer, Red Hat are already shipping with
  --hash-style=gnu [ this is unfortunate since the binaries are then
  not back-compatible ]. We should most likely use --hash-style=both
  (at some small size penalty) - but after some time switch over to
  --hash-style=gnu to save size.

  The size difference is < 0.1 %.  We will enable it by default.

* libata per default (see minutes from last time - the partitioning
  question is still open)

  Moved to next meeting since one (critical) participant was missing.

* Enable -fstack-protector for the new distros for every package
  by default

  Red Hat according to their press statements builds all of their
  distribution using -fstack-protector, the heuristic stack overflow
  detection. While we use -D_FORTIFY_SOURCE=2, this one only covers
  known arrays. I think we should also enable -fstack-protector for
  all packages. If we enable it by default in the compiler, all
  software will automatically get the benefit too.

  To analyze what effect this will have on performance we will run
  SPEC2000 and build one distribution with and one without the flag.
  -fstack-protector only adds protection to those functions that might
  overflow but not to all (-fstack-protector=all would instrument
  all).  We will add it to RPM_OPT_FLAGS at the end of next week.

  AI: Run SPEC2000
  AI: Build Alpha0plus without -fstack-protector and then rebuild
  with it.
  AI: Analyze performance and size differences.


* Handling of compat packages

  These packages are inherited from old releases.  The question is
  which libraries are really needed.

  AI: to ask on opensuse mailing list what is needed and start
  working on tracking list.

  Proposal: We consider having a library naming proposal that includes
  the version number so that people can easily grab an library
  RPM package from an older distro if needed.

  AI: write up proposal and discuss it on opensuse-packaging.

* Avahi/mDNSResponder compatibility:
  Please assign all bugs to gnome-maintainers, they will look at it
  from March on.

* Blacklisting /opt/gnome

  We can blacklist this path in autobuild and then packages still
  using /opt/gnome for FACTORY will not build.  We will first prepare
  a list of packages still using it and later blacklist.


Andreas
-- 
 Andreas Jaeger, aj@xxxxxxx, http://www.suse.de/~aj/
  SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
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