Messages in this thread Patch in this message | | | From | Wang Nan <> | Subject | [RFC PATCH 21/22] perf bpf: probe at kprobe points. | Date | Thu, 30 Apr 2015 10:52:44 +0000 |
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--- tools/perf/util/bpf-loader.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c index 208f5e8..186a3d0 100644 --- a/tools/perf/util/bpf-loader.c +++ b/tools/perf/util/bpf-loader.c @@ -952,8 +952,26 @@ out: return -1; } +static int bpf_probe(void) +{ + int err = add_perf_probe_events(params.event_array, + params.nr_events, + MAX_PROBES, 0); + /* add_perf_probe_events return negative when fail */ + if (err < 0) + pr_err("bpf probe: failed to probe events\n"); + + return err < 0 ? err : 0; +} + int bpf__run(void) { + int err; + + pr_debug("bpf: probing\n"); + if ((err = bpf_probe())) + return err; + pr_info("BPF is running. Use Ctrl-c to stop.\n"); while(1) sleep(1); -- 1.8.3.4
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