Messages in this thread Patch in this message | | | Date | Mon, 14 Jan 2019 14:12:19 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH v7 perf, bpf-next 7/8] perf util: handle PERF_RECORD_BPF_EVENT |
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Em Thu, Jan 10, 2019 at 04:19:32PM -0800, Song Liu escreveu: > This patch adds basic handling of PERF_RECORD_BPF_EVENT. > Tracking of PERF_RECORD_BPF_EVENT is OFF by default. Option --bpf-event > is added to turn it on. > > Signed-off-by: Song Liu <songliubraving@fb.com>
Please add the following patch to your tree for the next revision:
commit 11860cb0ca8a5013c4b9dd8654dccf485ad7a61c Author: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Mon Jan 14 12:19:34 2019 -0300
perf top: Synthesize BPF events for pre-existing loaded BPF programs
So that we can resolve symbols and map names.
Cc: Song Liu <songliubraving@fb.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: kernel-team@fb.com Cc: netdev@vger.kernel.org Link: https://lkml.kernel.org/n/tip-h3loibff6htedj43q7uinon0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index f64e312db787..5a486d4de56e 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -22,6 +22,7 @@ #include "perf.h" #include "util/annotate.h" +#include "util/bpf-event.h" #include "util/config.h" #include "util/color.h" #include "util/drv_configs.h" @@ -1215,6 +1216,12 @@ static int __cmd_top(struct perf_top *top) init_process_thread(top); + ret = perf_event__synthesize_bpf_events(&top->tool, perf_event__process, + &top->session->machines.host, + &top->record_opts); + if (ret < 0) + pr_warning("Couldn't synthesize bpf events.\n"); + machine__synthesize_threads(&top->session->machines.host, &opts->target, top->evlist->threads, false, top->nr_threads_synthesize);
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