lwn.git/tools/testing/selftests/bpf/usdt_2.c, branch masterLinux kernel documentation tree maintained by Jonathan Corbethttp://mirrors.hust.edu.cn/git/lwn.git/atom?h=master2026-03-03T16:39:22+00:00selftests/bpf: Add test for checking correct nop of optimized usdt2026-03-03T16:39:22+00:00Jiri Olsajolsa@kernel.org2026-02-24T10:39:14+00:00urn:sha1:304841967c5574fec9307a2c1cdfa8abf30a29fc
Adding test that attaches bpf program on usdt probe in 2 scenarios;
- attach program on top of usdt_1, which is single nop instruction,
so the probe stays on nop instruction and is not optimized.
- attach program on top of usdt_2 which is probe defined on top
of nop,nop5 combo, so the probe is placed on top of nop5 and
is optimized.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20260224103915.1369690-5-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>