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perf script python: Refactor creation of perf sample dict

Browse source 
Move the creation of the dict containing perf_sample entries into a
helper function to enable its reuse in other sample processing routines.

Signed-off-by: Arun Kalyanasundaram <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: David Carrillo-Cisneros <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Seongjae Park <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Arun Kalyanasundaram 2017-07-21 15:04:19 -07:00 • committed by Arnaldo Carvalho de Melo
commit 892e76b2e8
1 changed files with 53 additions and 41 deletions
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94
tools/perf/util/scripting-engines/trace-event-python.c
View file

@ -391,6 +391,57 @@ exit:
return pylist;
}
static PyObject *get_perf_sample_dict(struct perf_sample *sample,
struct perf_evsel *evsel,
struct addr_location *al,
PyObject *callchain)
{
PyObject *dict, *dict_sample;
dict = PyDict_New();
if (!dict)
Py_FatalError("couldn't create Python dictionary");
dict_sample = PyDict_New();
if (!dict_sample)
Py_FatalError("couldn't create Python dictionary");
pydict_set_item_string_decref(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel)));
pydict_set_item_string_decref(dict, "attr", PyString_FromStringAndSize(
(const char *)&evsel->attr, sizeof(evsel->attr)));
pydict_set_item_string_decref(dict_sample, "pid",
PyInt_FromLong(sample->pid));
pydict_set_item_string_decref(dict_sample, "tid",
PyInt_FromLong(sample->tid));
pydict_set_item_string_decref(dict_sample, "cpu",
PyInt_FromLong(sample->cpu));
pydict_set_item_string_decref(dict_sample, "ip",
PyLong_FromUnsignedLongLong(sample->ip));
pydict_set_item_string_decref(dict_sample, "time",
PyLong_FromUnsignedLongLong(sample->time));
pydict_set_item_string_decref(dict_sample, "period",
PyLong_FromUnsignedLongLong(sample->period));
pydict_set_item_string_decref(dict, "sample", dict_sample);
pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize(
(const char *)sample->raw_data, sample->raw_size));
pydict_set_item_string_decref(dict, "comm",
PyString_FromString(thread__comm_str(al->thread)));
if (al->map) {
pydict_set_item_string_decref(dict, "dso",
PyString_FromString(al->map->dso->name));
}
if (al->sym) {
pydict_set_item_string_decref(dict, "symbol",
PyString_FromString(al->sym->name));
}
pydict_set_item_string_decref(dict, "callchain", callchain);
return dict;
}
static void python_process_tracepoint(struct perf_sample *sample,
struct perf_evsel *evsel,
struct addr_location *al)
@ -801,7 +852,7 @@ static void python_process_general_event(struct perf_sample *sample,
struct perf_evsel *evsel,
struct addr_location *al)
{
PyObject *handler, *t, *dict, *callchain, *dict_sample;
PyObject *handler, *t, *dict, *callchain;
static char handler_name[64];
unsigned n = 0;
@ -819,48 +870,9 @@ static void python_process_general_event(struct perf_sample *sample,
if (!t)
Py_FatalError("couldn't create Python tuple");
dict = PyDict_New();
if (!dict)
Py_FatalError("couldn't create Python dictionary");
dict_sample = PyDict_New();
if (!dict_sample)
Py_FatalError("couldn't create Python dictionary");
pydict_set_item_string_decref(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel)));
pydict_set_item_string_decref(dict, "attr", PyString_FromStringAndSize(
(const char *)&evsel->attr, sizeof(evsel->attr)));
pydict_set_item_string_decref(dict_sample, "pid",
PyInt_FromLong(sample->pid));
pydict_set_item_string_decref(dict_sample, "tid",
PyInt_FromLong(sample->tid));
pydict_set_item_string_decref(dict_sample, "cpu",
PyInt_FromLong(sample->cpu));
pydict_set_item_string_decref(dict_sample, "ip",
PyLong_FromUnsignedLongLong(sample->ip));
pydict_set_item_string_decref(dict_sample, "time",
PyLong_FromUnsignedLongLong(sample->time));
pydict_set_item_string_decref(dict_sample, "period",
PyLong_FromUnsignedLongLong(sample->period));
pydict_set_item_string_decref(dict, "sample", dict_sample);
pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize(
(const char *)sample->raw_data, sample->raw_size));
pydict_set_item_string_decref(dict, "comm",
PyString_FromString(thread__comm_str(al->thread)));
if (al->map) {
pydict_set_item_string_decref(dict, "dso",
PyString_FromString(al->map->dso->name));
}
if (al->sym) {
pydict_set_item_string_decref(dict, "symbol",
PyString_FromString(al->sym->name));
}
/* ip unwinding */
callchain = python_process_callchain(sample, evsel, al);
pydict_set_item_string_decref(dict, "callchain", callchain);
dict = get_perf_sample_dict(sample, evsel, al, callchain);
PyTuple_SetItem(t, n++, dict);
if (_PyTuple_Resize(&t, n) == -1)