diff options
| -rw-r--r-- | tools/perf/util/scripting-engines/trace-event-python.c | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index df7d33d1de0..b9010d878b4 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -32,6 +32,7 @@ #include "../event.h" #include "../thread.h" #include "../trace-event.h" +#include "../evsel.h" PyMODINIT_FUNC initperf_trace_context(void); @@ -220,7 +221,7 @@ static inline struct event_format *find_cache_event(struct perf_evsel *evsel) return event; } -static void python_process_event(union perf_event *perf_event __unused, +static void python_process_tracepoint(union perf_event *perf_event __unused, struct perf_sample *sample, struct perf_evsel *evsel, struct machine *machine __unused, @@ -337,6 +338,62 @@ static void python_process_event(union perf_event *perf_event __unused, Py_DECREF(t); } +static void python_process_general_event(union perf_event *perf_event __unused, + struct perf_sample *sample, + struct perf_evsel *evsel, + struct machine *machine __unused, + struct thread *thread __unused) +{ + PyObject *handler, *retval, *t; + static char handler_name[64]; + unsigned n = 0; + void *data = sample->raw_data; + + t = PyTuple_New(MAX_FIELDS); + if (!t) + Py_FatalError("couldn't create Python tuple"); + + snprintf(handler_name, sizeof(handler_name), "%s", "process_event"); + + handler = PyDict_GetItemString(main_dict, handler_name); + if (handler && !PyCallable_Check(handler)) { + handler = NULL; + goto exit; + } + + /* Pass 3 parameters: event_attr, perf_sample, raw data */ + PyTuple_SetItem(t, n++, PyString_FromStringAndSize((void *)&evsel->attr, sizeof(evsel->attr))); + PyTuple_SetItem(t, n++, PyString_FromStringAndSize((void *)sample, sizeof(*sample))); + PyTuple_SetItem(t, n++, PyString_FromStringAndSize(data, sample->raw_size)); + + if (_PyTuple_Resize(&t, n) == -1) + Py_FatalError("error resizing Python tuple"); + + retval = PyObject_CallObject(handler, t); + if (retval == NULL) + handler_call_die(handler_name); +exit: + Py_DECREF(t); +} + +static void python_process_event(union perf_event *perf_event, + struct perf_sample *sample, + struct perf_evsel *evsel, + struct machine *machine, + struct thread *thread) +{ + switch (evsel->attr.type) { + case PERF_TYPE_TRACEPOINT: + python_process_tracepoint(perf_event, sample, evsel, + machine, thread); + break; + /* Reserve for future process_hw/sw/raw APIs */ + default: + python_process_general_event(perf_event, sample, evsel, + machine, thread); + } +} + static int run_start_sub(void) { PyObject *handler, *retval; |