BPF Compiler Collection 0.11.0
bpfcc version 0.11.0 has been uploaded to Debian Unstable and should be accessible in the repositories by now. After the 0.8.0 release, this has been the next one uploaded to Debian.
Multiple source respositories
This release brought in dependencies to another set of sources from the libbpf project. In the upstream repo, this is still a topic of discussion on how to release tools where one depends on another, in unison. Right now, libbpf is configured as a git submodule in the bcc repository. So anyone using the upstream git repoistory should be able to build it.
Multiple source archive for a Debian package
So I had read in the past about Multiple source tarballs for a single package in Debian but never tried it because I wasn’t maintaining anything in Debian which was such. With bpfcc it was now a good opportunity to try it out. First, I came across this post from Raphaël Hertzog which gives a good explanation of what all has been done. This article was very clear and concise on the topic
Git Buildpackage
gbp is my tool of choice for packaging in Debian. So I did a quick look to check how gbp would take care of it. And everything was in place and Just Worked
rrs@priyasi:~/rrs-home/Community/Packaging/bpfcc (master)$ gbp buildpackage --git-component=libbpf
gbp:info: Creating /home/rrs/NoBackup/Community/Packaging/bpfcc_0.11.0.orig.tar.gz
gbp:info: Creating /home/rrs/NoBackup/Community/Packaging/bpfcc_0.11.0.orig-libbpf.tar.gz
gbp:info: Performing the build
dpkg-checkbuilddeps: error: Unmet build dependencies: arping clang-format cmake iperf libclang-dev libedit-dev libelf-dev libzip-dev llvm-dev libluajit-5.1-dev luajit python3-pyroute2
W: Unmet build-dependency in source
dpkg-source: info: using patch list from debian/patches/series
dpkg-source: info: applying fix-install-path.patch
dh clean --buildsystem=cmake --with python3 --no-parallel
dh_auto_clean -O--buildsystem=cmake -O--no-parallel
dh_autoreconf_clean -O--buildsystem=cmake -O--no-parallel
dh_clean -O--buildsystem=cmake -O--no-parallel
dpkg-source: info: using source format '3.0 (quilt)'
dpkg-source: info: building bpfcc using existing ./bpfcc_0.11.0.orig-libbpf.tar.gz
dpkg-source: info: building bpfcc using existing ./bpfcc_0.11.0.orig.tar.gz
dpkg-source: info: using patch list from debian/patches/series
dpkg-source: warning: ignoring deletion of directory src/cc/libbpf
dpkg-source: info: building bpfcc in bpfcc_0.11.0-1.debian.tar.xz
dpkg-source: info: building bpfcc in bpfcc_0.11.0-1.dsc
I: Generating source changes file for original dsc
dpkg-genchanges: info: including full source code in upload
dpkg-source: info: unapplying fix-install-path.patch
ERROR: ld.so: object 'libeatmydata.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
W: cgroups are not available on the host, not using them.
I: pbuilder: network access will be disabled during build
I: Current time: Sun Oct 13 19:53:57 IST 2019
I: pbuilder-time-stamp: 1570976637
I: Building the build Environment
I: extracting base tarball [/var/cache/pbuilder/sid-amd64-base.tgz]
I: copying local configuration
I: mounting /proc filesystem
I: mounting /sys filesystem
I: creating /{dev,run}/shm
I: mounting /dev/pts filesystem
I: redirecting /dev/ptmx to /dev/pts/ptmx
I: Mounting /var/cache/apt/archives/
I: policy-rc.d already exists
W: Could not create compatibility symlink because /tmp/buildd exists and it is not a directory
I: using eatmydata during job
I: Using pkgname logfile
I: Current time: Sun Oct 13 19:54:04 IST 2019
I: pbuilder-time-stamp: 1570976644
I: Setting up ccache
I: Copying source file
I: copying [../bpfcc_0.11.0-1.dsc]
I: copying [../bpfcc_0.11.0.orig-libbpf.tar.gz]
I: copying [../bpfcc_0.11.0.orig.tar.gz]
I: copying [../bpfcc_0.11.0-1.debian.tar.xz]
I: Extracting source
dpkg-source: warning: extracting unsigned source package (bpfcc_0.11.0-1.dsc)
dpkg-source: info: extracting bpfcc in bpfcc-0.11.0
dpkg-source: info: unpacking bpfcc_0.11.0.orig.tar.gz
dpkg-source: info: unpacking bpfcc_0.11.0.orig-libbpf.tar.gz
dpkg-source: info: unpacking bpfcc_0.11.0-1.debian.tar.xz
dpkg-source: info: using patch list from debian/patches/series
dpkg-source: info: applying fix-install-path.patch
I: Not using root during the build.