Force libc6 dependency version.
Drop explicit libelf-dev install command, as it should be pre-installed by
Travis CI already, according to .travis.yaml.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Clang 13 regressed BPF code generation causing some of BPF selftests to fail.
Until that is mitigated, stick to version 12.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Clang 13 became the new nightly version, so switch to it. Also do vmlinux
compilation with a bit more parallelism. And account python-docutils
installation as part of selftests build.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Whatever happened, clang-11 and llvm-11, to which clang/llvm packages resolve,
respectively, are not there anymore. Seems like clang-12/llvm-12 are the
latest now, but for whatever reason clang/llvm don't resolve to them yet.
Hard-code version 12 for now.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Build latest pahole from sources and not rely on hacky Ubuntu repository
approach.
Also enable tests for latest kernel that rely on pahole 1.16.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Clean up Travis CI config, extract multi-step initializations into scripts.
Also, move kernel-building tests to happen last to not block lightweight
Debian and Ubuntu tests.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
