[PATCH v6 11/27] perf record: Use perf_tool__init

Ian Rogers
2024-07-18T01:01:03Z

Use perf_tool__init so that more uses of struct perf_tool can be const
and not relying on perf_tool__fill_defaults.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/builtin-record.c | 33 ++++++++++++++++++++-------------
tools/perf/util/tool.c | 10 +++++-----
tools/perf/util/tool.h | 6 ++++++
3 files changed, 31 insertions(+), 18 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index f27f725913d7..12a5170d9193 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -193,6 +193,15 @@ static const char *affinity_tags[PERF_AFFINITY_MAX] = {
"SYS", "NODE", "CPU"
};

+static int build_id__process_mmap(const struct perf_tool *tool, union perf_event *event,
+ struct perf_sample *sample, struct machine *machine);
+static int build_id__process_mmap2(const struct perf_tool *tool, union perf_event *event,
+ struct perf_sample *sample, struct machine *machine);
+static int process_timestamp_boundary(const struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine);
+
#ifndef HAVE_GETTID
static inline pid_t gettid(void)
{
@@ -1458,7 +1467,7 @@ static int process_buildids(struct record *rec)
* first/last samples.
*/
if (rec->buildid_all && !rec->timestamp_boundary)
- rec->tool.sample = NULL;
+ rec->tool.sample = process_event_sample_stub;

return perf_session__process_events(session);
}
@@ -2386,6 +2395,16 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
signal(SIGUSR2, SIG_IGN);
}

+ perf_tool__init(tool, /*ordered_events=*/true);
+ tool->sample = process_sample_event;
+ tool->fork = perf_event__process_fork;
+ tool->exit = perf_event__process_exit;
+ tool->comm = perf_event__process_comm;
+ tool->namespaces = perf_event__process_namespaces;
+ tool->mmap = build_id__process_mmap;
+ tool->mmap2 = build_id__process_mmap2;
+ tool->itrace_start = process_timestamp_boundary;
+ tool->aux = process_timestamp_boundary;
session = perf_session__new(data, tool);
if (IS_ERR(session)) {
pr_err("Perf session creation failed.\n");
@@ -3326,18 +3345,6 @@ static struct record record = {
.ctl_fd_ack = -1,
.synth = PERF_SYNTH_ALL,
},
- .tool = {
- .sample = process_sample_event,
- .fork = perf_event__process_fork,
- .exit = perf_event__process_exit,
- .comm = perf_event__process_comm,
- .namespaces = perf_event__process_namespaces,
- .mmap = build_id__process_mmap,
- .mmap2 = build_id__process_mmap2,
- .itrace_start = process_timestamp_boundary,
- .aux = process_timestamp_boundary,
- .ordered_events = true,
- },
};

const char record_callchain_help[] = CALLCHAIN_RECORD_HELP
diff --git a/tools/perf/util/tool.c b/tools/perf/util/tool.c
index cbd9b888bd73..a4ca16e5eefe 100644
--- a/tools/perf/util/tool.c
+++ b/tools/perf/util/tool.c
@@ -99,11 +99,11 @@ static int process_event_synth_event_update_stub(const struct perf_tool *tool __
return 0;
}

-static int process_event_sample_stub(const struct perf_tool *tool __maybe_unused,
- union perf_event *event __maybe_unused,
- struct perf_sample *sample __maybe_unused,
- struct evsel *evsel __maybe_unused,
- struct machine *machine __maybe_unused)
+int process_event_sample_stub(const struct perf_tool *tool __maybe_unused,
+ union perf_event *event __maybe_unused,
+ struct perf_sample *sample __maybe_unused,
+ struct evsel *evsel __maybe_unused,
+ struct machine *machine __maybe_unused)
{
dump_printf(": unhandled!\n");
return 0;
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index 897c6c44b6b2..fb7e32d98dda 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -93,4 +93,10 @@ void perf_tool__fill_defaults(struct perf_tool *tool);

bool perf_tool__compressed_is_stub(const struct perf_tool *tool);

+int process_event_sample_stub(const struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct evsel *evsel,
+ struct machine *machine);
+
#endif /* __PERF_TOOL_H */
--
2.45.2.1089.g2a221341d9-goog