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 <[email protected]>
Please add the following patch to your tree for the next revision: commit 11860cb0ca8a5013c4b9dd8654dccf485ad7a61c Author: Arnaldo Carvalho de Melo <[email protected]> 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 <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: David Ahern <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> 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);
