selftests/bpf: Support custom per-test flags and multiple expected messages
Extend __flag attribute by allowing to specify one of the following:
* BPF_F_STRICT_ALIGNMENT
* BPF_F_ANY_ALIGNMENT
* BPF_F_TEST_RND_HI32
* BPF_F_TEST_STATE_FREQ
* BPF_F_SLEEPABLE
* BPF_F_XDP_HAS_FRAGS
* Some numeric value
Extend __msg attribute by allowing to specify multiple exepcted messages.
All messages are expected to be present in the verifier log in the
order of application.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230301175417.3146070-2-eddyz87@gmail.com
[ Eduard: added commit message, formatting, comments ]