[Bug 1088677] Please test proposed package

[Colin Watson]

Hello Rodrigo, or anyone else affected,

Accepted eglibc into quantal-proposed. The package will build now and be
available at http://launchpad.net/ubuntu/+source/eglibc/2.15-0ubuntu20.1
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

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https://bugs.launchpad.net/bugs/1088677

Title:
  rtld: limit self loading check to normal mode only

Status in “eglibc” package in Ubuntu:
  Fix Committed
Status in “eglibc” source package in Precise:
  Fix Committed
Status in “eglibc” source package in Quantal:
  Fix Committed

Bug description:
  [Impact / Justification]
  To be fair, this bug is (mostly) cosmetic, but when tools exit non-zero in scary ways, it can have knock-on effects elsewhere (to custom scripting, or just frightened users).  The fix here is targeted, "obviously correct", and easily auditable, so I figured I'd pull it back to the LTS for a bit of polish.

  [Test Case]
  The SRU patch includes an addition to the glibc testsuite that tests that ld.so can now load itself correctly in a few different ways, but the easiest user verification is to run:

  ldd /lib/ld-linux.so.2 (or /lib64/ld-linux-x86-64.so.2 on amd64)

  And witness it fail before the upgrade, and work after.

  [Regression Potential]
  Regression potential here is low, the patch is from upstream, very simple, and it's quite clear what it does.

  [Original Report]
  Commit glibc-2.14~10 disallowed rtld self loading to avoid a segfault

  that used to happen when rtld was loading itself in normal mode.

  Unfortunately, that commit disallowed all modes of self loading,

  including those that used to work before.  This change limits the
  check

  for self loading to normal mode only, so that instruments like ldd
  could

  handle rtld properly.

  http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=f3fd569c365ca5149fedbbc6c7a902aa1f8e5b60

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