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Commit a40b95bc authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf top: Synthesize BPF events for pre-existing loaded BPF programs 

So that we can resolve symbols and map names.

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: Song Liu <songliubraving@fb.com>
Cc: kernel-team@fb.com
Cc: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/20190117161521.1341602-9-songliubraving@fb.com


Signed-off-by: default avatarSong Liu <songliubraving@fb.com>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 7b612e29

tools/perf/builtin-top.c

+7 −0
Original line number Diff line number Diff line
@@ -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);