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 <songliubrav...@fb.com>
Please add the following patch to your tree for the next revision:
commit 11860cb0ca8a5013c4b9dd8654dccf485ad7a61c
Author: Arnaldo Carvalho de Melo <a...@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 <songliubrav...@fb.com>
Cc: Alexei Starovoitov <a...@kernel.org>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: David Ahern <dsah...@gmail.com>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: kernel-t...@fb.com
Cc: netdev@vger.kernel.org
Link: https://lkml.kernel.org/n/tip-h3loibff6htedj43q7uin...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@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);
