Hi, This is a fix for [1]: test_probe_user fails on s390x, because it hooks only connect(), but not socketcall(SYS_CONNECT). Patch 1 adds this quirk to BPF_KSYSCALL documentation. Patch 2 fixes the test by attaching a prog to socketcall(). Best regards, Ilya [1] https://lore.kernel.org/bpf/06631b122b9bd6258139a36b971bba3e79543503.camel@xxxxxxxxxxxxx/ v1: https://lore.kernel.org/bpf/20220723020344.21699-1-iii@xxxxxxxxxxxxx/ v1 -> v2: Add CONFIG_ prefix to CLONE_BACKWARDS* symbols (Jiri). Change the type of prog_names to make checkpatch happy. Use prog_count everywhere (Jiri). #ifdef out handle_sys_socketcall() on non-s390x (Jiri). Ilya Leoshkevich (2): libbpf: Extend BPF_KSYSCALL documentation selftests/bpf: Attach to socketcall() in test_probe_user tools/lib/bpf/bpf_tracing.h | 15 +++++--- .../selftests/bpf/prog_tests/probe_user.c | 35 +++++++++++++------ .../selftests/bpf/progs/test_probe_user.c | 32 +++++++++++++++-- 3 files changed, 65 insertions(+), 17 deletions(-) -- 2.35.3
