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Subject[PATCH v8 perf, bpf-next 8/9] perf top: Synthesize BPF events for pre-existing loaded BPF programs
Date
From: Arnaldo Carvalho de Melo <acme@redhat.com>

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>
Signed-off-by: Song Liu <songliubraving@fb.com>
---
tools/perf/builtin-top.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index fe3ecfb2e64b..62055e6a72ae 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"
@@ -1220,6 +1221,12 @@ 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);
--
2.17.1
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