[Bug 2061727] Re: bpfcc-tools autotest failure when multiple linux-tools-<version> packages are installed

[Launchpad Bug Tracker]

This bug was fixed in the package bpfcc - 0.29.1+ds-1ubuntu7

---------------
bpfcc (0.29.1+ds-1ubuntu7) noble; urgency=medium

  * d/rules:
    - allow to run autopkgtest with multiple kernels installed (LP: #2061727)

 -- Andrea Righi <andrea.righi at canonical.com>  Tue, 16 Apr 2024 05:52:23
+0000

** Changed in: bpfcc (Ubuntu Noble)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2061727

Title:
  bpfcc-tools autotest failure when multiple linux-tools-<version>
  packages are installed

Status in bpfcc package in Ubuntu:
  Fix Released
Status in bpfcc source package in Noble:
  Fix Released

Bug description:
  [Impact]

  The autopkgtest for bpfcc-tools fails with the following error when
  multiple linux-tools packages (multiple kernels) are installed:

  942s /usr/lib/linux-tools-6.8.0-22/bpftool /usr/lib/linux-tools-6.8.0-25/bpftool gen skeleton /tmp/autopkgtest.2W4dxr/build.Uhs/src/libbpf-tools/.output/bashreadline.bpf.o > /tmp/autopkgtest.2W4dxr/build.Uhs/src/libbpf-tools/.output/bashreadline.skel.h
  942s Usage: bpftool [OPTIONS] OBJECT { COMMAND | help }
  942s        bpftool batch file FILE
  942s        bpftool version
  942s 
  942s        OBJECT := { prog | map | link | cgroup | perf | net | feature | btf | gen | struct_ops | iter }
  942s        OPTIONS := { {-j|--json} [{-p|--pretty}] | {-d|--debug} |
  942s                     {-V|--version} }
  942s make[2]: *** [Makefile:192: /tmp/autopkgtest.2W4dxr/build.Uhs/src/libbpf-tools/.output/bashreadline.skel.h] Error 255
  942s make[2]: *** Deleting file '/tmp/autopkgtest.2W4dxr/build.Uhs/src/libbpf-tools/.output/bashreadline.skel.h'
  942s make[2]: Leaving directory '/tmp/autopkgtest.2W4dxr/build.Uhs/src/libbpf-tools'
  942s make[1]: *** [debian/rules:44: override_dh_auto_install] Error 2
  942s make[1]: Leaving directory '/tmp/autopkgtest.2W4dxr/build.Uhs/src'

  The reason is that in debian/rules we evaluate BPFTOOL assuming that
  only one kernel is installed, but we may have multiple kernels
  (therefore multiple linux-tools-<version>) installed.

  [Test case]

  Install multiple linux-tools-<version> and run the bpfcc-tools
  autopkgtest.

  [Fix]

  Evaluate BPFTOOL in debian/rules only taking the last bpftool listed
  in /usr/lib/linux-tools-*/bpftool.

  [Regression potential]

  This change affects only the autopkgtest and it allows to run the test
  correctly also when multiple kernels are installed, no regresssion is
  expected.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: bpfcc-tools 0.29.1+ds-1ubuntu6
  ProcVersionSignature: User Name 6.8.0-22.22-generic 6.8.1
  Uname: Linux 6.8.0-22-generic x86_64
  ApportVersion: 2.28.0-0ubuntu1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CloudArchitecture: x86_64
  CloudBuildName: server
  CloudID: nocloud
  CloudName: unknown
  CloudPlatform: nocloud
  CloudSerial: 20240413
  CloudSubPlatform: config-disk (/dev/vdb)
  Date: Tue Apr 16 05:38:06 2024
  PackageArchitecture: all
  ProcEnviron:
   LANG=C.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: bpfcc
  UpgradeStatus: No upgrade log present (probably fresh install)

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