From b9322cab17a1092e2aa7ee2505ecceb0cd5fd685 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Sat, 22 Jun 2019 12:32:46 +0300 Subject: perf db-export: Export synth events Synthesized events are samples but with architecture-specific data stored in sample->raw_data. They are identified by attribute type PERF_TYPE_SYNTH. Add a function to export them. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190622093248.581-6-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- .../util/scripting-engines/trace-event-python.c | 46 +++++++++++++++++++++- 1 file changed, 44 insertions(+), 2 deletions(-) (limited to 'tools/perf/util') diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index 6acb379b53ec..112bed65232f 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -112,6 +112,7 @@ struct tables { PyObject *sample_handler; PyObject *call_path_handler; PyObject *call_return_handler; + PyObject *synth_handler; bool db_export_mode; }; @@ -947,6 +948,12 @@ static int tuple_set_string(PyObject *t, unsigned int pos, const char *s) return PyTuple_SetItem(t, pos, _PyUnicode_FromString(s)); } +static int tuple_set_bytes(PyObject *t, unsigned int pos, void *bytes, + unsigned int sz) +{ + return PyTuple_SetItem(t, pos, _PyBytes_FromStringAndSize(bytes, sz)); +} + static int python_export_evsel(struct db_export *dbe, struct perf_evsel *evsel) { struct tables *tables = container_of(dbe, struct tables, dbe); @@ -1105,8 +1112,8 @@ static int python_export_branch_type(struct db_export *dbe, u32 branch_type, return 0; } -static int python_export_sample(struct db_export *dbe, - struct export_sample *es) +static void python_export_sample_table(struct db_export *dbe, + struct export_sample *es) { struct tables *tables = container_of(dbe, struct tables, dbe); PyObject *t; @@ -1141,6 +1148,33 @@ static int python_export_sample(struct db_export *dbe, call_object(tables->sample_handler, t, "sample_table"); Py_DECREF(t); +} + +static void python_export_synth(struct db_export *dbe, struct export_sample *es) +{ + struct tables *tables = container_of(dbe, struct tables, dbe); + PyObject *t; + + t = tuple_new(3); + + tuple_set_u64(t, 0, es->db_id); + tuple_set_u64(t, 1, es->evsel->attr.config); + tuple_set_bytes(t, 2, es->sample->raw_data, es->sample->raw_size); + + call_object(tables->synth_handler, t, "synth_data"); + + Py_DECREF(t); +} + +static int python_export_sample(struct db_export *dbe, + struct export_sample *es) +{ + struct tables *tables = container_of(dbe, struct tables, dbe); + + python_export_sample_table(dbe, es); + + if (es->evsel->attr.type == PERF_TYPE_SYNTH && tables->synth_handler) + python_export_synth(dbe, es); return 0; } @@ -1477,6 +1511,14 @@ static void set_table_handlers(struct tables *tables) SET_TABLE_HANDLER(sample); SET_TABLE_HANDLER(call_path); SET_TABLE_HANDLER(call_return); + + /* + * Synthesized events are samples but with architecture-specific data + * stored in sample->raw_data. They are exported via + * python_export_sample() and consequently do not need a separate export + * callback. + */ + tables->synth_handler = get_handler("synth_data"); } #if PY_MAJOR_VERSION < 3 -- cgit v1.2.3-59-g8ed1b