diff options
| author | Blake Jones <blakejones@google.com> | 2025-06-12 12:49:38 -0700 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-06-20 14:48:56 -0700 |
| commit | f19860ea9477f5ac33775cc0a602c7d54188c00a (patch) | |
| tree | d2634d7db621476741de19057134d2ac9c3bbd9e /tools/perf/builtin-script.c | |
| parent | fdc3441f2d317b40ace0936ee040a6c895d60014 (diff) | |
perf tools: display the new PERF_RECORD_BPF_METADATA event
Here's some example "perf script -D" output for the new event type. The
": unhandled!" message is from tool.c, analogous to other behavior there.
I've elided some rows with all NUL characters for brevity, and I wrapped
one of the >75-column lines to fit in the commit guidelines.
0x50fc8@perf.data [0x260]: event: 84
.
. ... raw event: size 608 bytes
. 0000: 54 00 00 00 00 00 60 02 62 70 66 5f 70 72 6f 67 T.....`.bpf_prog
. 0010: 5f 31 65 30 61 32 65 33 36 36 65 35 36 66 31 61 _1e0a2e366e56f1a
. 0020: 32 5f 70 65 72 66 5f 73 61 6d 70 6c 65 5f 66 69 2_perf_sample_fi
. 0030: 6c 74 65 72 00 00 00 00 00 00 00 00 00 00 00 00 lter............
. 0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[...]
. 0110: 74 65 73 74 5f 76 61 6c 75 65 00 00 00 00 00 00 test_value......
. 0120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[...]
. 0150: 34 32 00 00 00 00 00 00 00 00 00 00 00 00 00 00 42..............
. 0160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[...]
0 0x50fc8 [0x260]: PERF_RECORD_BPF_METADATA \
prog bpf_prog_1e0a2e366e56f1a2_perf_sample_filter
entry 0: test_value = 42
: unhandled!
Signed-off-by: Blake Jones <blakejones@google.com>
Link: https://lore.kernel.org/r/20250612194939.162730-5-blakejones@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/builtin-script.c')
| -rw-r--r-- | tools/perf/builtin-script.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 6c3bf74dd78c..4001e621b6cb 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -38,6 +38,7 @@ #include "print_insn.h" #include "archinsn.h" #include <linux/bitmap.h> +#include <linux/compiler.h> #include <linux/kernel.h> #include <linux/stringify.h> #include <linux/time64.h> @@ -50,6 +51,7 @@ #include <errno.h> #include <inttypes.h> #include <signal.h> +#include <stdio.h> #include <sys/param.h> #include <sys/types.h> #include <sys/stat.h> @@ -2755,6 +2757,14 @@ process_bpf_events(const struct perf_tool *tool __maybe_unused, sample->tid); } +static int +process_bpf_metadata_event(struct perf_session *session __maybe_unused, + union perf_event *event) +{ + perf_event__fprintf(event, NULL, stdout); + return 0; +} + static int process_text_poke_events(const struct perf_tool *tool, union perf_event *event, struct perf_sample *sample, @@ -2877,8 +2887,9 @@ static int __cmd_script(struct perf_script *script) script->tool.finished_round = process_finished_round_event; } if (script->show_bpf_events) { - script->tool.ksymbol = process_bpf_events; - script->tool.bpf = process_bpf_events; + script->tool.ksymbol = process_bpf_events; + script->tool.bpf = process_bpf_events; + script->tool.bpf_metadata = process_bpf_metadata_event; } if (script->show_text_poke_events) { script->tool.ksymbol = process_bpf_events; |