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Commit b9322cab authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

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: default avatarAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190622093248.581-6-adrian.hunter@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 5fe2cf7d

tools/perf/util/scripting-engines/trace-event-python.c

+44 −2
Original line number Diff line number Diff line
@@ -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);
@@ -1105,7 +1112,7 @@ static int python_export_branch_type(struct db_export *dbe, u32 branch_type, 
	return 0;

}



static int python_export_sample(struct db_export *dbe,

static void python_export_sample_table(struct db_export *dbe,

				       struct export_sample *es)

{

	struct tables *tables = container_of(dbe, struct tables, dbe);
@@ -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