[Bug 1930125] Re: SRU: update gcc-9 and gcc-10 packages for focal, groovy and hirsute

[Launchpad Bug Tracker]

This bug was fixed in the package gcc-9-cross-ports - 18ubuntu5

---------------
gcc-9-cross-ports (18ubuntu5) focal-proposed; urgency=medium

  * SRU: LP: #1930125. Update to the GCC 9.4.0 release.
  * Build using gcc 9.4.0-1ubuntu1.

 -- Matthias Klose <doko at ubuntu.com>  Wed, 02 Jun 2021 17:22:11 +0200

** Changed in: gcc-9-cross-ports (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1930125

Title:
  SRU: update gcc-9 and gcc-10 packages for focal, groovy and hirsute

Status in gcc-10 package in Ubuntu:
  New
Status in gcc-10-cross package in Ubuntu:
  New
Status in gcc-10-cross-mipsen package in Ubuntu:
  New
Status in gcc-10-cross-ports package in Ubuntu:
  New
Status in gcc-9 package in Ubuntu:
  New
Status in gcc-9-cross package in Ubuntu:
  New
Status in gcc-9-cross-mipsen package in Ubuntu:
  New
Status in gcc-9-cross-ports package in Ubuntu:
  New
Status in gcc-10 source package in Focal:
  Fix Released
Status in gcc-10-cross source package in Focal:
  Fix Released
Status in gcc-10-cross-mipsen source package in Focal:
  Fix Released
Status in gcc-10-cross-ports source package in Focal:
  Fix Released
Status in gcc-9 source package in Focal:
  Fix Released
Status in gcc-9-cross source package in Focal:
  Fix Released
Status in gcc-9-cross-mipsen source package in Focal:
  Fix Released
Status in gcc-9-cross-ports source package in Focal:
  Fix Released
Status in gcc-10 source package in Groovy:
  Fix Released
Status in gcc-10-cross source package in Groovy:
  Fix Released
Status in gcc-10-cross-mipsen source package in Groovy:
  Fix Released
Status in gcc-10-cross-ports source package in Groovy:
  Fix Released
Status in gcc-9 source package in Groovy:
  In Progress
Status in gcc-9-cross source package in Groovy:
  In Progress
Status in gcc-9-cross-mipsen source package in Groovy:
  In Progress
Status in gcc-9-cross-ports source package in Groovy:
  In Progress
Status in gcc-9 source package in Hirsute:
  Fix Committed
Status in gcc-9-cross source package in Hirsute:
  Fix Committed
Status in gcc-9-cross-mipsen source package in Hirsute:
  Fix Committed
Status in gcc-9-cross-ports source package in Hirsute:
  Fix Committed

Bug description:
  [Note to SRU members]

  Attention! This is a toolchain update, it requires to be released into both -updates and -security at the same time. Also, it requires some special handling so it's best to leave it in the hands of the accepting SRU team member.
  For instance, currently the gcc-9 parts of the SRU are basically verification-failed until the situation is cleared. So those should *not* be released without prior consultation.

  Thank you!

  [Overview]

  as done before in LP: #1879481 with GCC 9.3.0 and GCC 10.2.0, updating
  again to GCC 9.4.0 and GCC 10.3.0 in 20.04 LTS, 20.10 and 21.04.  GCC
  10.3.0 is already in 21.04 (hirsute), so no need to update that
  compiler there as well.

   - gcc-10, update to the gcc-10.3.0 release
   - gcc-9, update to the gcc-9.4.0 release
   - corresponding gcc-cross packages

  The package builds are prepared in
  https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/ppa/+packages
  built with only the security pocket enabled.

  [Impact]
  Provide an upstream release for GCC 10.3, and an upstream release for GCC 9.4.
  gcc-9 is the default compiler for focal, gcc-10 the default compiler for groovy.

  [Regression Potential]
  There is regression potential, however with a test rebuild of the main portion of the archive for both focal and groovy, we make sure that we don't see any regressions in package builds.

  [Test Case]
  No regressions in the GCC test suite, and no regressions in the test
  rebuild of the main component of the archive (all architectures).  No test rebuild is done for hirsute, as gcc-9 is not the default compiler anymore.

  Also check that the rebuilt kernel boots on all architectures.

  TODO: As a test, a complete archive rebuild was performed, and no
  regressions were found with this new package. The archive rebuild also
  contained updated versions of gcc-9, gcc-10, python3.8, and
  python3-stdlib-extensions. The GCC and Python packages should not
  infer with each other.

  [Validation]
  Analyze the GCC build logs for regressions.
  For the cross builds, just make sure that the packages build using
  the updated sources.

  Summary of the test rebuilds:
  https://people.canonical.com/~doko/ftbfs-report/test-rebuild-20210602-focal-focal.html
  https://people.canonical.com/~doko/ftbfs-report/test-rebuild-20210602-focal-gcc-focal.html

  https://people.canonical.com/~doko/ftbfs-report/test-rebuild-20210601-groovy-groovy.html
  https://people.canonical.com/~doko/ftbfs-report/test-rebuild-20210601-groovy-gcc-groovy.html

  The first one in each paragraph is a reference build, the second one
  the test rebuild with the updated components.

  There are no additional regressions except for sssd in focal, which is
  unrelated to the GCC update, and only exposed by Python 3.8.10 which
  was fixed by a separate SRU. Note that the riscv64 builds are purely
  informational, and are not checked for any regressions.

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