To get id of the tracepoint from subsystem and name strings. The interface is:
id = perf.tracepoint(sys, name) In case of error -1 is returned. It will be used to get python tracepoint event's config value for tracepoint event. Link: http://lkml.kernel.org/n/tip-ssizvbkk2lds6bti2z69t...@git.kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- tools/perf/util/python.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index fc277e486d17..45fdd4a68721 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -2,6 +2,7 @@ #include <structmember.h> #include <inttypes.h> #include <poll.h> +#include <linux/err.h> #include "evlist.h" #include "evsel.h" #include "event.h" @@ -1076,7 +1077,32 @@ static struct { { .name = NULL, }, }; +static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel, + PyObject *args, PyObject *kwargs) +{ + struct event_format *tp_format; + static char *kwlist[] = { "sys", "name", NULL }; + char *sys = NULL; + char *name = NULL; + + if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist, + &sys, &name)) + return NULL; + + tp_format = trace_event__tp_format(sys, name); + if (IS_ERR(tp_format)) + return PyInt_FromLong(-1); + + return PyInt_FromLong(tp_format->id); +} + static PyMethodDef perf__methods[] = { + { + .ml_name = "tracepoint", + .ml_meth = (PyCFunction) pyrf__tracepoint, + .ml_flags = METH_VARARGS | METH_KEYWORDS, + .ml_doc = PyDoc_STR("Get tracepoint config.") + }, { .ml_name = NULL, } }; -- 2.4.11
