[Bug 2074212] Re: [SRU] Enable frame-pointer on Noble in libdmapsharing

[Paride Legovini]

Hello, I think the versions string in the debdiff is not OK for an SRU,
since 3.9.13-2ubuntu1 is already used in Oracular.

On this SRU in general, I share the concerns I expressed in [1].

[1] https://bugs.launchpad.net/ubuntu/+source/nspr/+bug/2084460

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Title:
  [SRU] Enable frame-pointer on Noble in libdmapsharing

Status in libdmapsharing package in Ubuntu:
  Fix Released
Status in libdmapsharing source package in Noble:
  New

Bug description:
  [ Impact ]

  In order to help developers with profiling, Ubuntu enabled frame-
  pointers for packages in the main archive.

  https://ubuntu.com/blog/ubuntu-performance-engineering-with-frame-
  pointers-by-default

  The `Affects` packages were missed due to the packaging issues. These
  have been fixed on Oracular and can now be ported to Noble.

  [ Test Plan ]

  Look at the DW_AT_producer in the associated debug ELF file for flags.
  -fno-omit-frame-pointer should be present after the fix.

  The following scripts can be used as a reference
  https://gist.github.com/julian-klode/85e55553f85c410a1b856a93dce77208
  https://gist.github.com/julian-klode/95818246eaef0ac6a54588f7f368e25c

  -fno-omit-frame-pointer is also present in build logs and now binaries
  are not rebuilt without this flag anymore to run tests.

  Smoke test I ran:

  Download https://www2.cs.uic.edu/~i101/SoundFiles/StarWars3.wav (or
  any wav file)

  
  sudo apt install rhythmbox
  mkdir -p scratch/owntone/{etc,media,cache}
  cp StarWars3.wav scratch/owntone/media/
  sudo dpkg -i libdmapsharing-4.0-3t64_3.9.13-2ubuntu1_amd64.deb
  docker run -d \
    --name=OwnTone \
    --network=host \
    -e UID=$(id -u) \
    -e GID=$(id -g) \
    -v $HOME/scratch/owntone/etc:/etc/owntone \
    -v $HOME/scratch/owntone/media:/srv/media \
    -v $HOME/scratch/owntone/cache:/var/cache/owntone \
    --restart unless-stopped \
    docker.io/owntone/owntone:latest

  
  At this point owntone is sharing the wav file over DAAP
  Launch rhythmbox

  An entry in the `Shared` section of the left menu should be visible.
  StarWars3.wav should be playable.

  
  [ Where problems could occur ]

  No source changes are made. The packaging fixes have enabled other
  security hardening flags. This could have unintended effects.

  [ Other Info ]

  Changes in dpkg have been made to make sure frame-pointers are not
  enabled on s390x and ppc64el.

  Bug reference with similar SRU
  - https://bugs.launchpad.net/ubuntu/+source/ipvsadm/+bug/2071949

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