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[bpf-next,0/2] Fix test_probe_user on s390x

Message ID 20220723020344.21699-1-iii@linux.ibm.com (mailing list archive)
Headers show
Series Fix test_probe_user on s390x | expand

Message

Ilya Leoshkevich July 23, 2022, 2:03 a.m. UTC 
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@linux.ibm.com/

Ilya Leoshkevich (2):
  libbpf: Extend BPF_KSYSCALL documentation
  selftests/bpf: Attach to socketcall() in test_probe_user

 tools/lib/bpf/bpf_tracing.h                   | 14 +++++---
 .../selftests/bpf/prog_tests/probe_user.c     | 35 +++++++++++++------
 .../selftests/bpf/progs/test_probe_user.c     | 28 +++++++++++++--
 3 files changed, 60 insertions(+), 17 deletions(-)