Re: [PATCH bpf-next v5 3/3] selftests/bpf: Add stacktrace map lookup_and_delete_elem test case

[Tao Chen]

在 2025/9/25 20:09, Daniel Borkmann 写道:
> On 9/23/25 6:58 PM, Tao Chen wrote:
> > Add tests for stacktrace map lookup and delete:
> > 1. use bpf_map_lookup_and_delete_elem to lookup and delete the target
> >     stack_id,
> > 2. lookup the deleted stack_id again to double check.
> >
> > Signed-off-by: Tao Chen <chen.dylane@xxxxxxxxx>
> > ---
> >   .../testing/selftests/bpf/prog_tests/stacktrace_map.c | 11 ++++++++++-
> >   tools/testing/selftests/bpf/progs/stacktrace_map.c    |  2 ++
> >   2 files changed, 12 insertions(+), 1 deletion(-)
> BPF CI fails with:
>
> Notice: Success: 644/5645, Skipped: 82, Failed: 1
> Error: #402 stacktrace_map_raw_tp
>    Error: #402 stacktrace_map_raw_tp
>    libbpf: elf: failed to open ./test_stacktrace_map.bpf.o: -ENOENT
>    test_stacktrace_map_raw_tp:FAIL:prog_load raw tp err -2 errno 2
> Test Results:
>               bpftool: PASS
>            test_progs: FAIL (returned 1)
> Error: Process completed with exit code 1.
>
> https://github.com/kernel-patches/bpf/actions/runs/17993777572

Hi Daniel,

It seems that stacktrace_map_raw_tp will use test_stacktrace_map.bpf.c,
which is renamed to stacktrace_map.c in my patch, i will fix it, thanks.

tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c:8: 
const char *file = "./test_stacktrace_map.bpf.o";

--
Best Regards
Tao Chen