[Bug 1603137] Re: libbfd changed name without transition

[Adam Conrad]

Hello Julian, or anyone else affected,

Accepted binutils into xenial-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/binutils/2.26.1-1ubuntu1~16.04.1 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!

** Changed in: binutils (Ubuntu Xenial)
       Status: In Progress => Fix Committed

** Tags added: verification-needed

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https://bugs.launchpad.net/bugs/1603137

Title:
  libbfd changed name without transition

Status in binutils package in Ubuntu:
  Fix Released
Status in linux package in Ubuntu:
  Invalid
Status in binutils source package in Xenial:
  Fix Committed
Status in linux source package in Xenial:
  Invalid

Bug description:
  [SRU Justification]
  the latest binutils update in xenial to 2.26.1-1ubuntu1~16.04 changed the name of the libbfd library from: libbfd-2.26-system.so to libbfd-2.26.1-system.so
  This apparently happened without transitioning all dependencies.
  For example it broke the perf tool from the linux-tools-common package as it is still linked against the old libbfd name.

  To reproduce run "perf" with linux >= 4.4.0-24.43 and binutils
  2.26.1-1ubuntu1~16.04 and you get an cannot open libbfd-2.26-system.so
  error.

  [Test case]
  1. Install eztrace on 16.04.
  2. Install binutils from xenial-updates.
  3. Run 'eztrace'.  Confirm that this fails with a library error.
  4. Install binutils from xenial-proposed.
  5. Run 'eztrace'.  Confirm that this gives usage output instead of failing with a library error.

  [Regression potential]
  Packages which depend on libbfd-2.26-system.so are currently broken with the binutils in xenial-updates.  No packages appear to have been built yet against the libbfd-2.26.1-system.so soname.  Therefore the regression potential is minimal.  The solution is intended to be compatible with both upstream sonames, so that any future packages which do rebuild against the 2.26.1 soname will have a versioned dependency on binutils (>= 2.26.1), binutils (<= 2.27).

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