hi, this patchset adds support to retrieve cookies from existing tracing links that still did not support it plus changes to bpftool to display them. It's leftover we discussed some time ago [1]. thanks, jirka v2 changes: - added review/ack tags - fixed memory leak [Quentin] - align the uapi fields properly [Yafang Shao] [1] https://lore.kernel.org/bpf/CALOAHbAZ6=A9j3VFCLoAC_WhgQKU7injMf06=cM2sU4Hi4Sx+Q@xxxxxxxxxxxxxx/ --- Jiri Olsa (8): bpf: Add cookie to perf_event bpf_link_info records bpf: Store cookies in kprobe_multi bpf_link_info data bpftool: Fix wrong free call in do_show_link selftests/bpf: Add cookies check for kprobe_multi fill_link_info test selftests/bpf: Add cookies check for perf_event fill_link_info test selftests/bpf: Add fill_link_info test for perf event bpftool: Display cookie for perf event link probes bpftool: Display cookie for kprobe multi link include/uapi/linux/bpf.h | 7 ++++++ kernel/bpf/syscall.c | 4 ++++ kernel/trace/bpf_trace.c | 15 +++++++++++++ tools/bpf/bpftool/link.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------- tools/include/uapi/linux/bpf.h | 7 ++++++ tools/testing/selftests/bpf/prog_tests/fill_link_info.c | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------- tools/testing/selftests/bpf/progs/test_fill_link_info.c | 6 +++++ 7 files changed, 214 insertions(+), 33 deletions(-)
