Hi Jiri, On Wed, 24 Nov 2021 09:41:11 +0100 Jiri Olsa <jolsa@xxxxxxxxxx> wrote: > hi, > adding support to create multiple kprobes/uprobes within single > perf event. This way we can associate single bpf program with > multiple kprobes. Thanks for the change, basically, you can repeatedly call the create_local_trace_kprobe() and register it. > > Sending this as RFC because I'm not completely sure I haven't > missed anything in the trace/events area. OK let me check that. Thanks, > > Also it needs following uprobe fix to work properly: > https://lore.kernel.org/lkml/20211123142801.182530-1-jolsa@xxxxxxxxxx/ > > Also available at: > https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git > bpf/kuprobe_batch > > thanks, > jirka > > > --- > Jiri Olsa (8): > perf/kprobe: Add support to create multiple probes > perf/uprobe: Add support to create multiple probes > libbpf: Add libbpf__kallsyms_parse function > libbpf: Add struct perf_event_open_args > libbpf: Add support to attach multiple [ku]probes > libbpf: Add support for k[ret]probe.multi program section > selftest/bpf: Add kprobe multi attach test > selftest/bpf: Add uprobe multi attach test > > include/uapi/linux/perf_event.h | 1 + > kernel/trace/trace_event_perf.c | 214 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------- > kernel/trace/trace_kprobe.c | 47 ++++++++++++++++--- > kernel/trace/trace_probe.c | 2 +- > kernel/trace/trace_probe.h | 6 ++- > kernel/trace/trace_uprobe.c | 43 +++++++++++++++-- > tools/include/uapi/linux/perf_event.h | 1 + > tools/lib/bpf/libbpf.c | 235 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------- > tools/lib/bpf/libbpf.h | 25 +++++++++- > tools/lib/bpf/libbpf_internal.h | 5 ++ > tools/testing/selftests/bpf/prog_tests/multi_kprobe_test.c | 83 +++++++++++++++++++++++++++++++++ > tools/testing/selftests/bpf/prog_tests/multi_uprobe_test.c | 97 ++++++++++++++++++++++++++++++++++++++ > tools/testing/selftests/bpf/progs/multi_kprobe.c | 58 +++++++++++++++++++++++ > tools/testing/selftests/bpf/progs/multi_uprobe.c | 26 +++++++++++ > 14 files changed, 765 insertions(+), 78 deletions(-) > create mode 100644 tools/testing/selftests/bpf/prog_tests/multi_kprobe_test.c > create mode 100644 tools/testing/selftests/bpf/prog_tests/multi_uprobe_test.c > create mode 100644 tools/testing/selftests/bpf/progs/multi_kprobe.c > create mode 100644 tools/testing/selftests/bpf/progs/multi_uprobe.c > -- Masami Hiramatsu <mhiramat@xxxxxxxxxx>
