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1#include <Python.h>
2#include <structmember.h>
3#include <inttypes.h>
4#include <poll.h>
5#include "evlist.h"
6#include "evsel.h"
7#include "event.h"
8#include "cpumap.h"
9#include "thread_map.h"
10
11/*
12 * Support debug printing even though util/debug.c is not linked. That means
13 * implementing 'verbose' and 'eprintf'.
14 */
15int verbose;
16
17int eprintf(int level, const char *fmt, ...)
18{
19 va_list args;
20 int ret = 0;
21
22 if (verbose >= level) {
23 va_start(args, fmt);
24 ret = vfprintf(stderr, fmt, args);
25 va_end(args);
26 }
27
28 return ret;
29}
30
31/* Define PyVarObject_HEAD_INIT for python 2.5 */
32#ifndef PyVarObject_HEAD_INIT
33# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
34#endif
35
36PyMODINIT_FUNC initperf(void);
37
38#define member_def(type, member, ptype, help) \
39 { #member, ptype, \
40 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
41 0, help }
42
43#define sample_member_def(name, member, ptype, help) \
44 { #name, ptype, \
45 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
46 0, help }
47
48struct pyrf_event {
49 PyObject_HEAD
50 struct perf_sample sample;
51 union perf_event event;
52};
53
54#define sample_members \
55 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
56 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
57 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
58 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
59 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
60 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
61 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
62 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
63 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
64
65static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
66
67static PyMemberDef pyrf_mmap_event__members[] = {
68 sample_members
69 member_def(perf_event_header, type, T_UINT, "event type"),
70 member_def(mmap_event, pid, T_UINT, "event pid"),
71 member_def(mmap_event, tid, T_UINT, "event tid"),
72 member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
73 member_def(mmap_event, len, T_ULONGLONG, "map length"),
74 member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
75 member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
76 { .name = NULL, },
77};
78
79static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
80{
81 PyObject *ret;
82 char *s;
83
84 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
85 "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
86 "filename: %s }",
87 pevent->event.mmap.pid, pevent->event.mmap.tid,
88 pevent->event.mmap.start, pevent->event.mmap.len,
89 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
90 ret = PyErr_NoMemory();
91 } else {
92 ret = PyString_FromString(s);
93 free(s);
94 }
95 return ret;
96}
97
98static PyTypeObject pyrf_mmap_event__type = {
99 PyVarObject_HEAD_INIT(NULL, 0)
100 .tp_name = "perf.mmap_event",
101 .tp_basicsize = sizeof(struct pyrf_event),
102 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
103 .tp_doc = pyrf_mmap_event__doc,
104 .tp_members = pyrf_mmap_event__members,
105 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
106};
107
108static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
109
110static PyMemberDef pyrf_task_event__members[] = {
111 sample_members
112 member_def(perf_event_header, type, T_UINT, "event type"),
113 member_def(fork_event, pid, T_UINT, "event pid"),
114 member_def(fork_event, ppid, T_UINT, "event ppid"),
115 member_def(fork_event, tid, T_UINT, "event tid"),
116 member_def(fork_event, ptid, T_UINT, "event ptid"),
117 member_def(fork_event, time, T_ULONGLONG, "timestamp"),
118 { .name = NULL, },
119};
120
121static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
122{
123 return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
124 "ptid: %u, time: %" PRIu64 "}",
125 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
126 pevent->event.fork.pid,
127 pevent->event.fork.ppid,
128 pevent->event.fork.tid,
129 pevent->event.fork.ptid,
130 pevent->event.fork.time);
131}
132
133static PyTypeObject pyrf_task_event__type = {
134 PyVarObject_HEAD_INIT(NULL, 0)
135 .tp_name = "perf.task_event",
136 .tp_basicsize = sizeof(struct pyrf_event),
137 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
138 .tp_doc = pyrf_task_event__doc,
139 .tp_members = pyrf_task_event__members,
140 .tp_repr = (reprfunc)pyrf_task_event__repr,
141};
142
143static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
144
145static PyMemberDef pyrf_comm_event__members[] = {
146 sample_members
147 member_def(perf_event_header, type, T_UINT, "event type"),
148 member_def(comm_event, pid, T_UINT, "event pid"),
149 member_def(comm_event, tid, T_UINT, "event tid"),
150 member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
151 { .name = NULL, },
152};
153
154static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
155{
156 return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
157 pevent->event.comm.pid,
158 pevent->event.comm.tid,
159 pevent->event.comm.comm);
160}
161
162static PyTypeObject pyrf_comm_event__type = {
163 PyVarObject_HEAD_INIT(NULL, 0)
164 .tp_name = "perf.comm_event",
165 .tp_basicsize = sizeof(struct pyrf_event),
166 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
167 .tp_doc = pyrf_comm_event__doc,
168 .tp_members = pyrf_comm_event__members,
169 .tp_repr = (reprfunc)pyrf_comm_event__repr,
170};
171
172static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
173
174static PyMemberDef pyrf_throttle_event__members[] = {
175 sample_members
176 member_def(perf_event_header, type, T_UINT, "event type"),
177 member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
178 member_def(throttle_event, id, T_ULONGLONG, "event id"),
179 member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
180 { .name = NULL, },
181};
182
183static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
184{
185 struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
186
187 return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
188 ", stream_id: %" PRIu64 " }",
189 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
190 te->time, te->id, te->stream_id);
191}
192
193static PyTypeObject pyrf_throttle_event__type = {
194 PyVarObject_HEAD_INIT(NULL, 0)
195 .tp_name = "perf.throttle_event",
196 .tp_basicsize = sizeof(struct pyrf_event),
197 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
198 .tp_doc = pyrf_throttle_event__doc,
199 .tp_members = pyrf_throttle_event__members,
200 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
201};
202
203static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
204
205static PyMemberDef pyrf_lost_event__members[] = {
206 sample_members
207 member_def(lost_event, id, T_ULONGLONG, "event id"),
208 member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
209 { .name = NULL, },
210};
211
212static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
213{
214 PyObject *ret;
215 char *s;
216
217 if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
218 "lost: %#" PRIx64 " }",
219 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
220 ret = PyErr_NoMemory();
221 } else {
222 ret = PyString_FromString(s);
223 free(s);
224 }
225 return ret;
226}
227
228static PyTypeObject pyrf_lost_event__type = {
229 PyVarObject_HEAD_INIT(NULL, 0)
230 .tp_name = "perf.lost_event",
231 .tp_basicsize = sizeof(struct pyrf_event),
232 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
233 .tp_doc = pyrf_lost_event__doc,
234 .tp_members = pyrf_lost_event__members,
235 .tp_repr = (reprfunc)pyrf_lost_event__repr,
236};
237
238static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
239
240static PyMemberDef pyrf_read_event__members[] = {
241 sample_members
242 member_def(read_event, pid, T_UINT, "event pid"),
243 member_def(read_event, tid, T_UINT, "event tid"),
244 { .name = NULL, },
245};
246
247static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
248{
249 return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
250 pevent->event.read.pid,
251 pevent->event.read.tid);
252 /*
253 * FIXME: return the array of read values,
254 * making this method useful ;-)
255 */
256}
257
258static PyTypeObject pyrf_read_event__type = {
259 PyVarObject_HEAD_INIT(NULL, 0)
260 .tp_name = "perf.read_event",
261 .tp_basicsize = sizeof(struct pyrf_event),
262 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
263 .tp_doc = pyrf_read_event__doc,
264 .tp_members = pyrf_read_event__members,
265 .tp_repr = (reprfunc)pyrf_read_event__repr,
266};
267
268static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
269
270static PyMemberDef pyrf_sample_event__members[] = {
271 sample_members
272 member_def(perf_event_header, type, T_UINT, "event type"),
273 { .name = NULL, },
274};
275
276static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
277{
278 PyObject *ret;
279 char *s;
280
281 if (asprintf(&s, "{ type: sample }") < 0) {
282 ret = PyErr_NoMemory();
283 } else {
284 ret = PyString_FromString(s);
285 free(s);
286 }
287 return ret;
288}
289
290static PyTypeObject pyrf_sample_event__type = {
291 PyVarObject_HEAD_INIT(NULL, 0)
292 .tp_name = "perf.sample_event",
293 .tp_basicsize = sizeof(struct pyrf_event),
294 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
295 .tp_doc = pyrf_sample_event__doc,
296 .tp_members = pyrf_sample_event__members,
297 .tp_repr = (reprfunc)pyrf_sample_event__repr,
298};
299
300static int pyrf_event__setup_types(void)
301{
302 int err;
303 pyrf_mmap_event__type.tp_new =
304 pyrf_task_event__type.tp_new =
305 pyrf_comm_event__type.tp_new =
306 pyrf_lost_event__type.tp_new =
307 pyrf_read_event__type.tp_new =
308 pyrf_sample_event__type.tp_new =
309 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
310 err = PyType_Ready(&pyrf_mmap_event__type);
311 if (err < 0)
312 goto out;
313 err = PyType_Ready(&pyrf_lost_event__type);
314 if (err < 0)
315 goto out;
316 err = PyType_Ready(&pyrf_task_event__type);
317 if (err < 0)
318 goto out;
319 err = PyType_Ready(&pyrf_comm_event__type);
320 if (err < 0)
321 goto out;
322 err = PyType_Ready(&pyrf_throttle_event__type);
323 if (err < 0)
324 goto out;
325 err = PyType_Ready(&pyrf_read_event__type);
326 if (err < 0)
327 goto out;
328 err = PyType_Ready(&pyrf_sample_event__type);
329 if (err < 0)
330 goto out;
331out:
332 return err;
333}
334
335static PyTypeObject *pyrf_event__type[] = {
336 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
337 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
338 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
339 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
340 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
341 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
342 [PERF_RECORD_FORK] = &pyrf_task_event__type,
343 [PERF_RECORD_READ] = &pyrf_read_event__type,
344 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
345};
346
347static PyObject *pyrf_event__new(union perf_event *event)
348{
349 struct pyrf_event *pevent;
350 PyTypeObject *ptype;
351
352 if (event->header.type < PERF_RECORD_MMAP ||
353 event->header.type > PERF_RECORD_SAMPLE)
354 return NULL;
355
356 ptype = pyrf_event__type[event->header.type];
357 pevent = PyObject_New(struct pyrf_event, ptype);
358 if (pevent != NULL)
359 memcpy(&pevent->event, event, event->header.size);
360 return (PyObject *)pevent;
361}
362
363struct pyrf_cpu_map {
364 PyObject_HEAD
365
366 struct cpu_map *cpus;
367};
368
369static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
370 PyObject *args, PyObject *kwargs)
371{
372 static char *kwlist[] = { "cpustr", NULL };
373 char *cpustr = NULL;
374
375 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
376 kwlist, &cpustr))
377 return -1;
378
379 pcpus->cpus = cpu_map__new(cpustr);
380 if (pcpus->cpus == NULL)
381 return -1;
382 return 0;
383}
384
385static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
386{
387 cpu_map__delete(pcpus->cpus);
388 pcpus->ob_type->tp_free((PyObject*)pcpus);
389}
390
391static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
392{
393 struct pyrf_cpu_map *pcpus = (void *)obj;
394
395 return pcpus->cpus->nr;
396}
397
398static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
399{
400 struct pyrf_cpu_map *pcpus = (void *)obj;
401
402 if (i >= pcpus->cpus->nr)
403 return NULL;
404
405 return Py_BuildValue("i", pcpus->cpus->map[i]);
406}
407
408static PySequenceMethods pyrf_cpu_map__sequence_methods = {
409 .sq_length = pyrf_cpu_map__length,
410 .sq_item = pyrf_cpu_map__item,
411};
412
413static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
414
415static PyTypeObject pyrf_cpu_map__type = {
416 PyVarObject_HEAD_INIT(NULL, 0)
417 .tp_name = "perf.cpu_map",
418 .tp_basicsize = sizeof(struct pyrf_cpu_map),
419 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
420 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
421 .tp_doc = pyrf_cpu_map__doc,
422 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
423 .tp_init = (initproc)pyrf_cpu_map__init,
424};
425
426static int pyrf_cpu_map__setup_types(void)
427{
428 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
429 return PyType_Ready(&pyrf_cpu_map__type);
430}
431
432struct pyrf_thread_map {
433 PyObject_HEAD
434
435 struct thread_map *threads;
436};
437
438static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
439 PyObject *args, PyObject *kwargs)
440{
441 static char *kwlist[] = { "pid", "tid", "uid", NULL };
442 int pid = -1, tid = -1, uid = UINT_MAX;
443
444 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
445 kwlist, &pid, &tid, &uid))
446 return -1;
447
448 pthreads->threads = thread_map__new(pid, tid, uid);
449 if (pthreads->threads == NULL)
450 return -1;
451 return 0;
452}
453
454static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
455{
456 thread_map__delete(pthreads->threads);
457 pthreads->ob_type->tp_free((PyObject*)pthreads);
458}
459
460static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
461{
462 struct pyrf_thread_map *pthreads = (void *)obj;
463
464 return pthreads->threads->nr;
465}
466
467static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
468{
469 struct pyrf_thread_map *pthreads = (void *)obj;
470
471 if (i >= pthreads->threads->nr)
472 return NULL;
473
474 return Py_BuildValue("i", pthreads->threads->map[i]);
475}
476
477static PySequenceMethods pyrf_thread_map__sequence_methods = {
478 .sq_length = pyrf_thread_map__length,
479 .sq_item = pyrf_thread_map__item,
480};
481
482static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
483
484static PyTypeObject pyrf_thread_map__type = {
485 PyVarObject_HEAD_INIT(NULL, 0)
486 .tp_name = "perf.thread_map",
487 .tp_basicsize = sizeof(struct pyrf_thread_map),
488 .tp_dealloc = (destructor)pyrf_thread_map__delete,
489 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
490 .tp_doc = pyrf_thread_map__doc,
491 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
492 .tp_init = (initproc)pyrf_thread_map__init,
493};
494
495static int pyrf_thread_map__setup_types(void)
496{
497 pyrf_thread_map__type.tp_new = PyType_GenericNew;
498 return PyType_Ready(&pyrf_thread_map__type);
499}
500
501struct pyrf_evsel {
502 PyObject_HEAD
503
504 struct perf_evsel evsel;
505};
506
507static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
508 PyObject *args, PyObject *kwargs)
509{
510 struct perf_event_attr attr = {
511 .type = PERF_TYPE_HARDWARE,
512 .config = PERF_COUNT_HW_CPU_CYCLES,
513 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
514 };
515 static char *kwlist[] = {
516 "type",
517 "config",
518 "sample_freq",
519 "sample_period",
520 "sample_type",
521 "read_format",
522 "disabled",
523 "inherit",
524 "pinned",
525 "exclusive",
526 "exclude_user",
527 "exclude_kernel",
528 "exclude_hv",
529 "exclude_idle",
530 "mmap",
531 "comm",
532 "freq",
533 "inherit_stat",
534 "enable_on_exec",
535 "task",
536 "watermark",
537 "precise_ip",
538 "mmap_data",
539 "sample_id_all",
540 "wakeup_events",
541 "bp_type",
542 "bp_addr",
543 "bp_len",
544 NULL
545 };
546 u64 sample_period = 0;
547 u32 disabled = 0,
548 inherit = 0,
549 pinned = 0,
550 exclusive = 0,
551 exclude_user = 0,
552 exclude_kernel = 0,
553 exclude_hv = 0,
554 exclude_idle = 0,
555 mmap = 0,
556 comm = 0,
557 freq = 1,
558 inherit_stat = 0,
559 enable_on_exec = 0,
560 task = 0,
561 watermark = 0,
562 precise_ip = 0,
563 mmap_data = 0,
564 sample_id_all = 1;
565 int idx = 0;
566
567 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
568 "|iKiKKiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
569 &attr.type, &attr.config, &attr.sample_freq,
570 &sample_period, &attr.sample_type,
571 &attr.read_format, &disabled, &inherit,
572 &pinned, &exclusive, &exclude_user,
573 &exclude_kernel, &exclude_hv, &exclude_idle,
574 &mmap, &comm, &freq, &inherit_stat,
575 &enable_on_exec, &task, &watermark,
576 &precise_ip, &mmap_data, &sample_id_all,
577 &attr.wakeup_events, &attr.bp_type,
578 &attr.bp_addr, &attr.bp_len, &idx))
579 return -1;
580
581 /* union... */
582 if (sample_period != 0) {
583 if (attr.sample_freq != 0)
584 return -1; /* FIXME: throw right exception */
585 attr.sample_period = sample_period;
586 }
587
588 /* Bitfields */
589 attr.disabled = disabled;
590 attr.inherit = inherit;
591 attr.pinned = pinned;
592 attr.exclusive = exclusive;
593 attr.exclude_user = exclude_user;
594 attr.exclude_kernel = exclude_kernel;
595 attr.exclude_hv = exclude_hv;
596 attr.exclude_idle = exclude_idle;
597 attr.mmap = mmap;
598 attr.comm = comm;
599 attr.freq = freq;
600 attr.inherit_stat = inherit_stat;
601 attr.enable_on_exec = enable_on_exec;
602 attr.task = task;
603 attr.watermark = watermark;
604 attr.precise_ip = precise_ip;
605 attr.mmap_data = mmap_data;
606 attr.sample_id_all = sample_id_all;
607
608 perf_evsel__init(&pevsel->evsel, &attr, idx);
609 return 0;
610}
611
612static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
613{
614 perf_evsel__exit(&pevsel->evsel);
615 pevsel->ob_type->tp_free((PyObject*)pevsel);
616}
617
618static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
619 PyObject *args, PyObject *kwargs)
620{
621 struct perf_evsel *evsel = &pevsel->evsel;
622 struct cpu_map *cpus = NULL;
623 struct thread_map *threads = NULL;
624 PyObject *pcpus = NULL, *pthreads = NULL;
625 int group = 0, inherit = 0;
626 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
627
628 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
629 &pcpus, &pthreads, &group, &inherit))
630 return NULL;
631
632 if (pthreads != NULL)
633 threads = ((struct pyrf_thread_map *)pthreads)->threads;
634
635 if (pcpus != NULL)
636 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
637
638 evsel->attr.inherit = inherit;
639 /*
640 * This will group just the fds for this single evsel, to group
641 * multiple events, use evlist.open().
642 */
643 if (perf_evsel__open(evsel, cpus, threads) < 0) {
644 PyErr_SetFromErrno(PyExc_OSError);
645 return NULL;
646 }
647
648 Py_INCREF(Py_None);
649 return Py_None;
650}
651
652static PyMethodDef pyrf_evsel__methods[] = {
653 {
654 .ml_name = "open",
655 .ml_meth = (PyCFunction)pyrf_evsel__open,
656 .ml_flags = METH_VARARGS | METH_KEYWORDS,
657 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
658 },
659 { .ml_name = NULL, }
660};
661
662static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
663
664static PyTypeObject pyrf_evsel__type = {
665 PyVarObject_HEAD_INIT(NULL, 0)
666 .tp_name = "perf.evsel",
667 .tp_basicsize = sizeof(struct pyrf_evsel),
668 .tp_dealloc = (destructor)pyrf_evsel__delete,
669 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
670 .tp_doc = pyrf_evsel__doc,
671 .tp_methods = pyrf_evsel__methods,
672 .tp_init = (initproc)pyrf_evsel__init,
673};
674
675static int pyrf_evsel__setup_types(void)
676{
677 pyrf_evsel__type.tp_new = PyType_GenericNew;
678 return PyType_Ready(&pyrf_evsel__type);
679}
680
681struct pyrf_evlist {
682 PyObject_HEAD
683
684 struct perf_evlist evlist;
685};
686
687static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
688 PyObject *args, PyObject *kwargs __maybe_unused)
689{
690 PyObject *pcpus = NULL, *pthreads = NULL;
691 struct cpu_map *cpus;
692 struct thread_map *threads;
693
694 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
695 return -1;
696
697 threads = ((struct pyrf_thread_map *)pthreads)->threads;
698 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
699 perf_evlist__init(&pevlist->evlist, cpus, threads);
700 return 0;
701}
702
703static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
704{
705 perf_evlist__exit(&pevlist->evlist);
706 pevlist->ob_type->tp_free((PyObject*)pevlist);
707}
708
709static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
710 PyObject *args, PyObject *kwargs)
711{
712 struct perf_evlist *evlist = &pevlist->evlist;
713 static char *kwlist[] = { "pages", "overwrite", NULL };
714 int pages = 128, overwrite = false;
715
716 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
717 &pages, &overwrite))
718 return NULL;
719
720 if (perf_evlist__mmap(evlist, pages, overwrite) < 0) {
721 PyErr_SetFromErrno(PyExc_OSError);
722 return NULL;
723 }
724
725 Py_INCREF(Py_None);
726 return Py_None;
727}
728
729static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
730 PyObject *args, PyObject *kwargs)
731{
732 struct perf_evlist *evlist = &pevlist->evlist;
733 static char *kwlist[] = { "timeout", NULL };
734 int timeout = -1, n;
735
736 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
737 return NULL;
738
739 n = poll(evlist->pollfd, evlist->nr_fds, timeout);
740 if (n < 0) {
741 PyErr_SetFromErrno(PyExc_OSError);
742 return NULL;
743 }
744
745 return Py_BuildValue("i", n);
746}
747
748static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
749 PyObject *args __maybe_unused,
750 PyObject *kwargs __maybe_unused)
751{
752 struct perf_evlist *evlist = &pevlist->evlist;
753 PyObject *list = PyList_New(0);
754 int i;
755
756 for (i = 0; i < evlist->nr_fds; ++i) {
757 PyObject *file;
758 FILE *fp = fdopen(evlist->pollfd[i].fd, "r");
759
760 if (fp == NULL)
761 goto free_list;
762
763 file = PyFile_FromFile(fp, "perf", "r", NULL);
764 if (file == NULL)
765 goto free_list;
766
767 if (PyList_Append(list, file) != 0) {
768 Py_DECREF(file);
769 goto free_list;
770 }
771
772 Py_DECREF(file);
773 }
774
775 return list;
776free_list:
777 return PyErr_NoMemory();
778}
779
780
781static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
782 PyObject *args,
783 PyObject *kwargs __maybe_unused)
784{
785 struct perf_evlist *evlist = &pevlist->evlist;
786 PyObject *pevsel;
787 struct perf_evsel *evsel;
788
789 if (!PyArg_ParseTuple(args, "O", &pevsel))
790 return NULL;
791
792 Py_INCREF(pevsel);
793 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
794 evsel->idx = evlist->nr_entries;
795 perf_evlist__add(evlist, evsel);
796
797 return Py_BuildValue("i", evlist->nr_entries);
798}
799
800static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
801 PyObject *args, PyObject *kwargs)
802{
803 struct perf_evlist *evlist = &pevlist->evlist;
804 union perf_event *event;
805 int sample_id_all = 1, cpu;
806 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
807 int err;
808
809 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
810 &cpu, &sample_id_all))
811 return NULL;
812
813 event = perf_evlist__mmap_read(evlist, cpu);
814 if (event != NULL) {
815 PyObject *pyevent = pyrf_event__new(event);
816 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
817
818 perf_evlist__mmap_consume(evlist, cpu);
819
820 if (pyevent == NULL)
821 return PyErr_NoMemory();
822
823 err = perf_evlist__parse_sample(evlist, event, &pevent->sample);
824 if (err)
825 return PyErr_Format(PyExc_OSError,
826 "perf: can't parse sample, err=%d", err);
827 return pyevent;
828 }
829
830 Py_INCREF(Py_None);
831 return Py_None;
832}
833
834static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
835 PyObject *args, PyObject *kwargs)
836{
837 struct perf_evlist *evlist = &pevlist->evlist;
838 int group = 0;
839 static char *kwlist[] = { "group", NULL };
840
841 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
842 return NULL;
843
844 if (group)
845 perf_evlist__set_leader(evlist);
846
847 if (perf_evlist__open(evlist) < 0) {
848 PyErr_SetFromErrno(PyExc_OSError);
849 return NULL;
850 }
851
852 Py_INCREF(Py_None);
853 return Py_None;
854}
855
856static PyMethodDef pyrf_evlist__methods[] = {
857 {
858 .ml_name = "mmap",
859 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
860 .ml_flags = METH_VARARGS | METH_KEYWORDS,
861 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
862 },
863 {
864 .ml_name = "open",
865 .ml_meth = (PyCFunction)pyrf_evlist__open,
866 .ml_flags = METH_VARARGS | METH_KEYWORDS,
867 .ml_doc = PyDoc_STR("open the file descriptors.")
868 },
869 {
870 .ml_name = "poll",
871 .ml_meth = (PyCFunction)pyrf_evlist__poll,
872 .ml_flags = METH_VARARGS | METH_KEYWORDS,
873 .ml_doc = PyDoc_STR("poll the file descriptor table.")
874 },
875 {
876 .ml_name = "get_pollfd",
877 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
878 .ml_flags = METH_VARARGS | METH_KEYWORDS,
879 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
880 },
881 {
882 .ml_name = "add",
883 .ml_meth = (PyCFunction)pyrf_evlist__add,
884 .ml_flags = METH_VARARGS | METH_KEYWORDS,
885 .ml_doc = PyDoc_STR("adds an event selector to the list.")
886 },
887 {
888 .ml_name = "read_on_cpu",
889 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
890 .ml_flags = METH_VARARGS | METH_KEYWORDS,
891 .ml_doc = PyDoc_STR("reads an event.")
892 },
893 { .ml_name = NULL, }
894};
895
896static Py_ssize_t pyrf_evlist__length(PyObject *obj)
897{
898 struct pyrf_evlist *pevlist = (void *)obj;
899
900 return pevlist->evlist.nr_entries;
901}
902
903static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
904{
905 struct pyrf_evlist *pevlist = (void *)obj;
906 struct perf_evsel *pos;
907
908 if (i >= pevlist->evlist.nr_entries)
909 return NULL;
910
911 evlist__for_each(&pevlist->evlist, pos) {
912 if (i-- == 0)
913 break;
914 }
915
916 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
917}
918
919static PySequenceMethods pyrf_evlist__sequence_methods = {
920 .sq_length = pyrf_evlist__length,
921 .sq_item = pyrf_evlist__item,
922};
923
924static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
925
926static PyTypeObject pyrf_evlist__type = {
927 PyVarObject_HEAD_INIT(NULL, 0)
928 .tp_name = "perf.evlist",
929 .tp_basicsize = sizeof(struct pyrf_evlist),
930 .tp_dealloc = (destructor)pyrf_evlist__delete,
931 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
932 .tp_as_sequence = &pyrf_evlist__sequence_methods,
933 .tp_doc = pyrf_evlist__doc,
934 .tp_methods = pyrf_evlist__methods,
935 .tp_init = (initproc)pyrf_evlist__init,
936};
937
938static int pyrf_evlist__setup_types(void)
939{
940 pyrf_evlist__type.tp_new = PyType_GenericNew;
941 return PyType_Ready(&pyrf_evlist__type);
942}
943
944static struct {
945 const char *name;
946 int value;
947} perf__constants[] = {
948 { "TYPE_HARDWARE", PERF_TYPE_HARDWARE },
949 { "TYPE_SOFTWARE", PERF_TYPE_SOFTWARE },
950 { "TYPE_TRACEPOINT", PERF_TYPE_TRACEPOINT },
951 { "TYPE_HW_CACHE", PERF_TYPE_HW_CACHE },
952 { "TYPE_RAW", PERF_TYPE_RAW },
953 { "TYPE_BREAKPOINT", PERF_TYPE_BREAKPOINT },
954
955 { "COUNT_HW_CPU_CYCLES", PERF_COUNT_HW_CPU_CYCLES },
956 { "COUNT_HW_INSTRUCTIONS", PERF_COUNT_HW_INSTRUCTIONS },
957 { "COUNT_HW_CACHE_REFERENCES", PERF_COUNT_HW_CACHE_REFERENCES },
958 { "COUNT_HW_CACHE_MISSES", PERF_COUNT_HW_CACHE_MISSES },
959 { "COUNT_HW_BRANCH_INSTRUCTIONS", PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
960 { "COUNT_HW_BRANCH_MISSES", PERF_COUNT_HW_BRANCH_MISSES },
961 { "COUNT_HW_BUS_CYCLES", PERF_COUNT_HW_BUS_CYCLES },
962 { "COUNT_HW_CACHE_L1D", PERF_COUNT_HW_CACHE_L1D },
963 { "COUNT_HW_CACHE_L1I", PERF_COUNT_HW_CACHE_L1I },
964 { "COUNT_HW_CACHE_LL", PERF_COUNT_HW_CACHE_LL },
965 { "COUNT_HW_CACHE_DTLB", PERF_COUNT_HW_CACHE_DTLB },
966 { "COUNT_HW_CACHE_ITLB", PERF_COUNT_HW_CACHE_ITLB },
967 { "COUNT_HW_CACHE_BPU", PERF_COUNT_HW_CACHE_BPU },
968 { "COUNT_HW_CACHE_OP_READ", PERF_COUNT_HW_CACHE_OP_READ },
969 { "COUNT_HW_CACHE_OP_WRITE", PERF_COUNT_HW_CACHE_OP_WRITE },
970 { "COUNT_HW_CACHE_OP_PREFETCH", PERF_COUNT_HW_CACHE_OP_PREFETCH },
971 { "COUNT_HW_CACHE_RESULT_ACCESS", PERF_COUNT_HW_CACHE_RESULT_ACCESS },
972 { "COUNT_HW_CACHE_RESULT_MISS", PERF_COUNT_HW_CACHE_RESULT_MISS },
973
974 { "COUNT_HW_STALLED_CYCLES_FRONTEND", PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
975 { "COUNT_HW_STALLED_CYCLES_BACKEND", PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
976
977 { "COUNT_SW_CPU_CLOCK", PERF_COUNT_SW_CPU_CLOCK },
978 { "COUNT_SW_TASK_CLOCK", PERF_COUNT_SW_TASK_CLOCK },
979 { "COUNT_SW_PAGE_FAULTS", PERF_COUNT_SW_PAGE_FAULTS },
980 { "COUNT_SW_CONTEXT_SWITCHES", PERF_COUNT_SW_CONTEXT_SWITCHES },
981 { "COUNT_SW_CPU_MIGRATIONS", PERF_COUNT_SW_CPU_MIGRATIONS },
982 { "COUNT_SW_PAGE_FAULTS_MIN", PERF_COUNT_SW_PAGE_FAULTS_MIN },
983 { "COUNT_SW_PAGE_FAULTS_MAJ", PERF_COUNT_SW_PAGE_FAULTS_MAJ },
984 { "COUNT_SW_ALIGNMENT_FAULTS", PERF_COUNT_SW_ALIGNMENT_FAULTS },
985 { "COUNT_SW_EMULATION_FAULTS", PERF_COUNT_SW_EMULATION_FAULTS },
986 { "COUNT_SW_DUMMY", PERF_COUNT_SW_DUMMY },
987
988 { "SAMPLE_IP", PERF_SAMPLE_IP },
989 { "SAMPLE_TID", PERF_SAMPLE_TID },
990 { "SAMPLE_TIME", PERF_SAMPLE_TIME },
991 { "SAMPLE_ADDR", PERF_SAMPLE_ADDR },
992 { "SAMPLE_READ", PERF_SAMPLE_READ },
993 { "SAMPLE_CALLCHAIN", PERF_SAMPLE_CALLCHAIN },
994 { "SAMPLE_ID", PERF_SAMPLE_ID },
995 { "SAMPLE_CPU", PERF_SAMPLE_CPU },
996 { "SAMPLE_PERIOD", PERF_SAMPLE_PERIOD },
997 { "SAMPLE_STREAM_ID", PERF_SAMPLE_STREAM_ID },
998 { "SAMPLE_RAW", PERF_SAMPLE_RAW },
999
1000 { "FORMAT_TOTAL_TIME_ENABLED", PERF_FORMAT_TOTAL_TIME_ENABLED },
1001 { "FORMAT_TOTAL_TIME_RUNNING", PERF_FORMAT_TOTAL_TIME_RUNNING },
1002 { "FORMAT_ID", PERF_FORMAT_ID },
1003 { "FORMAT_GROUP", PERF_FORMAT_GROUP },
1004
1005 { "RECORD_MMAP", PERF_RECORD_MMAP },
1006 { "RECORD_LOST", PERF_RECORD_LOST },
1007 { "RECORD_COMM", PERF_RECORD_COMM },
1008 { "RECORD_EXIT", PERF_RECORD_EXIT },
1009 { "RECORD_THROTTLE", PERF_RECORD_THROTTLE },
1010 { "RECORD_UNTHROTTLE", PERF_RECORD_UNTHROTTLE },
1011 { "RECORD_FORK", PERF_RECORD_FORK },
1012 { "RECORD_READ", PERF_RECORD_READ },
1013 { "RECORD_SAMPLE", PERF_RECORD_SAMPLE },
1014 { .name = NULL, },
1015};
1016
1017static PyMethodDef perf__methods[] = {
1018 { .ml_name = NULL, }
1019};
1020
1021PyMODINIT_FUNC initperf(void)
1022{
1023 PyObject *obj;
1024 int i;
1025 PyObject *dict, *module = Py_InitModule("perf", perf__methods);
1026
1027 if (module == NULL ||
1028 pyrf_event__setup_types() < 0 ||
1029 pyrf_evlist__setup_types() < 0 ||
1030 pyrf_evsel__setup_types() < 0 ||
1031 pyrf_thread_map__setup_types() < 0 ||
1032 pyrf_cpu_map__setup_types() < 0)
1033 return;
1034
1035 /* The page_size is placed in util object. */
1036 page_size = sysconf(_SC_PAGE_SIZE);
1037
1038 Py_INCREF(&pyrf_evlist__type);
1039 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1040
1041 Py_INCREF(&pyrf_evsel__type);
1042 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1043
1044 Py_INCREF(&pyrf_thread_map__type);
1045 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1046
1047 Py_INCREF(&pyrf_cpu_map__type);
1048 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1049
1050 dict = PyModule_GetDict(module);
1051 if (dict == NULL)
1052 goto error;
1053
1054 for (i = 0; perf__constants[i].name != NULL; i++) {
1055 obj = PyInt_FromLong(perf__constants[i].value);
1056 if (obj == NULL)
1057 goto error;
1058 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1059 Py_DECREF(obj);
1060 }
1061
1062error:
1063 if (PyErr_Occurred())
1064 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1065}
1066
1067/*
1068 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1069 * binding.
1070 */
1071void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1072 int fd, int group_fd, unsigned long flags)
1073{
1074}
1// SPDX-License-Identifier: GPL-2.0
2#include <Python.h>
3#include <structmember.h>
4#include <inttypes.h>
5#include <poll.h>
6#include <linux/err.h>
7#include <perf/cpumap.h>
8#include <traceevent/event-parse.h>
9#include <perf/mmap.h>
10#include "evlist.h"
11#include "callchain.h"
12#include "evsel.h"
13#include "event.h"
14#include "print_binary.h"
15#include "thread_map.h"
16#include "trace-event.h"
17#include "mmap.h"
18#include "util/env.h"
19#include <internal/lib.h>
20#include "../perf-sys.h"
21
22#if PY_MAJOR_VERSION < 3
23#define _PyUnicode_FromString(arg) \
24 PyString_FromString(arg)
25#define _PyUnicode_AsString(arg) \
26 PyString_AsString(arg)
27#define _PyUnicode_FromFormat(...) \
28 PyString_FromFormat(__VA_ARGS__)
29#define _PyLong_FromLong(arg) \
30 PyInt_FromLong(arg)
31
32#else
33
34#define _PyUnicode_FromString(arg) \
35 PyUnicode_FromString(arg)
36#define _PyUnicode_FromFormat(...) \
37 PyUnicode_FromFormat(__VA_ARGS__)
38#define _PyLong_FromLong(arg) \
39 PyLong_FromLong(arg)
40#endif
41
42#ifndef Py_TYPE
43#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
44#endif
45
46/*
47 * Provide these two so that we don't have to link against callchain.c and
48 * start dragging hist.c, etc.
49 */
50struct callchain_param callchain_param;
51
52int parse_callchain_record(const char *arg __maybe_unused,
53 struct callchain_param *param __maybe_unused)
54{
55 return 0;
56}
57
58/*
59 * Add this one here not to drag util/env.c
60 */
61struct perf_env perf_env;
62
63/*
64 * Support debug printing even though util/debug.c is not linked. That means
65 * implementing 'verbose' and 'eprintf'.
66 */
67int verbose;
68int debug_peo_args;
69
70int eprintf(int level, int var, const char *fmt, ...);
71
72int eprintf(int level, int var, const char *fmt, ...)
73{
74 va_list args;
75 int ret = 0;
76
77 if (var >= level) {
78 va_start(args, fmt);
79 ret = vfprintf(stderr, fmt, args);
80 va_end(args);
81 }
82
83 return ret;
84}
85
86/* Define PyVarObject_HEAD_INIT for python 2.5 */
87#ifndef PyVarObject_HEAD_INIT
88# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
89#endif
90
91#if PY_MAJOR_VERSION < 3
92PyMODINIT_FUNC initperf(void);
93#else
94PyMODINIT_FUNC PyInit_perf(void);
95#endif
96
97#define member_def(type, member, ptype, help) \
98 { #member, ptype, \
99 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
100 0, help }
101
102#define sample_member_def(name, member, ptype, help) \
103 { #name, ptype, \
104 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
105 0, help }
106
107struct pyrf_event {
108 PyObject_HEAD
109 struct evsel *evsel;
110 struct perf_sample sample;
111 union perf_event event;
112};
113
114#define sample_members \
115 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
116 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
117 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
118 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
119 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
120 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
121 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
122 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
123 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
124
125static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
126
127static PyMemberDef pyrf_mmap_event__members[] = {
128 sample_members
129 member_def(perf_event_header, type, T_UINT, "event type"),
130 member_def(perf_event_header, misc, T_UINT, "event misc"),
131 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
132 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
133 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
134 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
135 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
136 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
137 { .name = NULL, },
138};
139
140static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
141{
142 PyObject *ret;
143 char *s;
144
145 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
146 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
147 "filename: %s }",
148 pevent->event.mmap.pid, pevent->event.mmap.tid,
149 pevent->event.mmap.start, pevent->event.mmap.len,
150 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
151 ret = PyErr_NoMemory();
152 } else {
153 ret = _PyUnicode_FromString(s);
154 free(s);
155 }
156 return ret;
157}
158
159static PyTypeObject pyrf_mmap_event__type = {
160 PyVarObject_HEAD_INIT(NULL, 0)
161 .tp_name = "perf.mmap_event",
162 .tp_basicsize = sizeof(struct pyrf_event),
163 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
164 .tp_doc = pyrf_mmap_event__doc,
165 .tp_members = pyrf_mmap_event__members,
166 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
167};
168
169static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
170
171static PyMemberDef pyrf_task_event__members[] = {
172 sample_members
173 member_def(perf_event_header, type, T_UINT, "event type"),
174 member_def(perf_record_fork, pid, T_UINT, "event pid"),
175 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
176 member_def(perf_record_fork, tid, T_UINT, "event tid"),
177 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
178 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
179 { .name = NULL, },
180};
181
182static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
183{
184 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
185 "ptid: %u, time: %" PRI_lu64 "}",
186 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
187 pevent->event.fork.pid,
188 pevent->event.fork.ppid,
189 pevent->event.fork.tid,
190 pevent->event.fork.ptid,
191 pevent->event.fork.time);
192}
193
194static PyTypeObject pyrf_task_event__type = {
195 PyVarObject_HEAD_INIT(NULL, 0)
196 .tp_name = "perf.task_event",
197 .tp_basicsize = sizeof(struct pyrf_event),
198 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
199 .tp_doc = pyrf_task_event__doc,
200 .tp_members = pyrf_task_event__members,
201 .tp_repr = (reprfunc)pyrf_task_event__repr,
202};
203
204static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
205
206static PyMemberDef pyrf_comm_event__members[] = {
207 sample_members
208 member_def(perf_event_header, type, T_UINT, "event type"),
209 member_def(perf_record_comm, pid, T_UINT, "event pid"),
210 member_def(perf_record_comm, tid, T_UINT, "event tid"),
211 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
212 { .name = NULL, },
213};
214
215static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
216{
217 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
218 pevent->event.comm.pid,
219 pevent->event.comm.tid,
220 pevent->event.comm.comm);
221}
222
223static PyTypeObject pyrf_comm_event__type = {
224 PyVarObject_HEAD_INIT(NULL, 0)
225 .tp_name = "perf.comm_event",
226 .tp_basicsize = sizeof(struct pyrf_event),
227 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
228 .tp_doc = pyrf_comm_event__doc,
229 .tp_members = pyrf_comm_event__members,
230 .tp_repr = (reprfunc)pyrf_comm_event__repr,
231};
232
233static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
234
235static PyMemberDef pyrf_throttle_event__members[] = {
236 sample_members
237 member_def(perf_event_header, type, T_UINT, "event type"),
238 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
239 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
240 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
241 { .name = NULL, },
242};
243
244static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
245{
246 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
247
248 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
249 ", stream_id: %" PRI_lu64 " }",
250 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
251 te->time, te->id, te->stream_id);
252}
253
254static PyTypeObject pyrf_throttle_event__type = {
255 PyVarObject_HEAD_INIT(NULL, 0)
256 .tp_name = "perf.throttle_event",
257 .tp_basicsize = sizeof(struct pyrf_event),
258 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
259 .tp_doc = pyrf_throttle_event__doc,
260 .tp_members = pyrf_throttle_event__members,
261 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
262};
263
264static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
265
266static PyMemberDef pyrf_lost_event__members[] = {
267 sample_members
268 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
269 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
270 { .name = NULL, },
271};
272
273static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
274{
275 PyObject *ret;
276 char *s;
277
278 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
279 "lost: %#" PRI_lx64 " }",
280 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
281 ret = PyErr_NoMemory();
282 } else {
283 ret = _PyUnicode_FromString(s);
284 free(s);
285 }
286 return ret;
287}
288
289static PyTypeObject pyrf_lost_event__type = {
290 PyVarObject_HEAD_INIT(NULL, 0)
291 .tp_name = "perf.lost_event",
292 .tp_basicsize = sizeof(struct pyrf_event),
293 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
294 .tp_doc = pyrf_lost_event__doc,
295 .tp_members = pyrf_lost_event__members,
296 .tp_repr = (reprfunc)pyrf_lost_event__repr,
297};
298
299static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
300
301static PyMemberDef pyrf_read_event__members[] = {
302 sample_members
303 member_def(perf_record_read, pid, T_UINT, "event pid"),
304 member_def(perf_record_read, tid, T_UINT, "event tid"),
305 { .name = NULL, },
306};
307
308static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
309{
310 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
311 pevent->event.read.pid,
312 pevent->event.read.tid);
313 /*
314 * FIXME: return the array of read values,
315 * making this method useful ;-)
316 */
317}
318
319static PyTypeObject pyrf_read_event__type = {
320 PyVarObject_HEAD_INIT(NULL, 0)
321 .tp_name = "perf.read_event",
322 .tp_basicsize = sizeof(struct pyrf_event),
323 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
324 .tp_doc = pyrf_read_event__doc,
325 .tp_members = pyrf_read_event__members,
326 .tp_repr = (reprfunc)pyrf_read_event__repr,
327};
328
329static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
330
331static PyMemberDef pyrf_sample_event__members[] = {
332 sample_members
333 member_def(perf_event_header, type, T_UINT, "event type"),
334 { .name = NULL, },
335};
336
337static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
338{
339 PyObject *ret;
340 char *s;
341
342 if (asprintf(&s, "{ type: sample }") < 0) {
343 ret = PyErr_NoMemory();
344 } else {
345 ret = _PyUnicode_FromString(s);
346 free(s);
347 }
348 return ret;
349}
350
351static bool is_tracepoint(struct pyrf_event *pevent)
352{
353 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
354}
355
356static PyObject*
357tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
358{
359 struct tep_handle *pevent = field->event->tep;
360 void *data = pe->sample.raw_data;
361 PyObject *ret = NULL;
362 unsigned long long val;
363 unsigned int offset, len;
364
365 if (field->flags & TEP_FIELD_IS_ARRAY) {
366 offset = field->offset;
367 len = field->size;
368 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
369 val = tep_read_number(pevent, data + offset, len);
370 offset = val;
371 len = offset >> 16;
372 offset &= 0xffff;
373 }
374 if (field->flags & TEP_FIELD_IS_STRING &&
375 is_printable_array(data + offset, len)) {
376 ret = _PyUnicode_FromString((char *)data + offset);
377 } else {
378 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
379 field->flags &= ~TEP_FIELD_IS_STRING;
380 }
381 } else {
382 val = tep_read_number(pevent, data + field->offset,
383 field->size);
384 if (field->flags & TEP_FIELD_IS_POINTER)
385 ret = PyLong_FromUnsignedLong((unsigned long) val);
386 else if (field->flags & TEP_FIELD_IS_SIGNED)
387 ret = PyLong_FromLong((long) val);
388 else
389 ret = PyLong_FromUnsignedLong((unsigned long) val);
390 }
391
392 return ret;
393}
394
395static PyObject*
396get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
397{
398 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
399 struct evsel *evsel = pevent->evsel;
400 struct tep_format_field *field;
401
402 if (!evsel->tp_format) {
403 struct tep_event *tp_format;
404
405 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
406 if (!tp_format)
407 return NULL;
408
409 evsel->tp_format = tp_format;
410 }
411
412 field = tep_find_any_field(evsel->tp_format, str);
413 if (!field)
414 return NULL;
415
416 return tracepoint_field(pevent, field);
417}
418
419static PyObject*
420pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
421{
422 PyObject *obj = NULL;
423
424 if (is_tracepoint(pevent))
425 obj = get_tracepoint_field(pevent, attr_name);
426
427 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
428}
429
430static PyTypeObject pyrf_sample_event__type = {
431 PyVarObject_HEAD_INIT(NULL, 0)
432 .tp_name = "perf.sample_event",
433 .tp_basicsize = sizeof(struct pyrf_event),
434 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
435 .tp_doc = pyrf_sample_event__doc,
436 .tp_members = pyrf_sample_event__members,
437 .tp_repr = (reprfunc)pyrf_sample_event__repr,
438 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
439};
440
441static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
442
443static PyMemberDef pyrf_context_switch_event__members[] = {
444 sample_members
445 member_def(perf_event_header, type, T_UINT, "event type"),
446 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
447 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
448 { .name = NULL, },
449};
450
451static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
452{
453 PyObject *ret;
454 char *s;
455
456 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
457 pevent->event.context_switch.next_prev_pid,
458 pevent->event.context_switch.next_prev_tid,
459 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
460 ret = PyErr_NoMemory();
461 } else {
462 ret = _PyUnicode_FromString(s);
463 free(s);
464 }
465 return ret;
466}
467
468static PyTypeObject pyrf_context_switch_event__type = {
469 PyVarObject_HEAD_INIT(NULL, 0)
470 .tp_name = "perf.context_switch_event",
471 .tp_basicsize = sizeof(struct pyrf_event),
472 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
473 .tp_doc = pyrf_context_switch_event__doc,
474 .tp_members = pyrf_context_switch_event__members,
475 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
476};
477
478static int pyrf_event__setup_types(void)
479{
480 int err;
481 pyrf_mmap_event__type.tp_new =
482 pyrf_task_event__type.tp_new =
483 pyrf_comm_event__type.tp_new =
484 pyrf_lost_event__type.tp_new =
485 pyrf_read_event__type.tp_new =
486 pyrf_sample_event__type.tp_new =
487 pyrf_context_switch_event__type.tp_new =
488 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
489 err = PyType_Ready(&pyrf_mmap_event__type);
490 if (err < 0)
491 goto out;
492 err = PyType_Ready(&pyrf_lost_event__type);
493 if (err < 0)
494 goto out;
495 err = PyType_Ready(&pyrf_task_event__type);
496 if (err < 0)
497 goto out;
498 err = PyType_Ready(&pyrf_comm_event__type);
499 if (err < 0)
500 goto out;
501 err = PyType_Ready(&pyrf_throttle_event__type);
502 if (err < 0)
503 goto out;
504 err = PyType_Ready(&pyrf_read_event__type);
505 if (err < 0)
506 goto out;
507 err = PyType_Ready(&pyrf_sample_event__type);
508 if (err < 0)
509 goto out;
510 err = PyType_Ready(&pyrf_context_switch_event__type);
511 if (err < 0)
512 goto out;
513out:
514 return err;
515}
516
517static PyTypeObject *pyrf_event__type[] = {
518 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
519 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
520 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
521 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
522 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
523 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
524 [PERF_RECORD_FORK] = &pyrf_task_event__type,
525 [PERF_RECORD_READ] = &pyrf_read_event__type,
526 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
527 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
528 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
529};
530
531static PyObject *pyrf_event__new(union perf_event *event)
532{
533 struct pyrf_event *pevent;
534 PyTypeObject *ptype;
535
536 if ((event->header.type < PERF_RECORD_MMAP ||
537 event->header.type > PERF_RECORD_SAMPLE) &&
538 !(event->header.type == PERF_RECORD_SWITCH ||
539 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
540 return NULL;
541
542 ptype = pyrf_event__type[event->header.type];
543 pevent = PyObject_New(struct pyrf_event, ptype);
544 if (pevent != NULL)
545 memcpy(&pevent->event, event, event->header.size);
546 return (PyObject *)pevent;
547}
548
549struct pyrf_cpu_map {
550 PyObject_HEAD
551
552 struct perf_cpu_map *cpus;
553};
554
555static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
556 PyObject *args, PyObject *kwargs)
557{
558 static char *kwlist[] = { "cpustr", NULL };
559 char *cpustr = NULL;
560
561 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
562 kwlist, &cpustr))
563 return -1;
564
565 pcpus->cpus = perf_cpu_map__new(cpustr);
566 if (pcpus->cpus == NULL)
567 return -1;
568 return 0;
569}
570
571static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
572{
573 perf_cpu_map__put(pcpus->cpus);
574 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
575}
576
577static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
578{
579 struct pyrf_cpu_map *pcpus = (void *)obj;
580
581 return pcpus->cpus->nr;
582}
583
584static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
585{
586 struct pyrf_cpu_map *pcpus = (void *)obj;
587
588 if (i >= pcpus->cpus->nr)
589 return NULL;
590
591 return Py_BuildValue("i", pcpus->cpus->map[i]);
592}
593
594static PySequenceMethods pyrf_cpu_map__sequence_methods = {
595 .sq_length = pyrf_cpu_map__length,
596 .sq_item = pyrf_cpu_map__item,
597};
598
599static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
600
601static PyTypeObject pyrf_cpu_map__type = {
602 PyVarObject_HEAD_INIT(NULL, 0)
603 .tp_name = "perf.cpu_map",
604 .tp_basicsize = sizeof(struct pyrf_cpu_map),
605 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
606 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
607 .tp_doc = pyrf_cpu_map__doc,
608 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
609 .tp_init = (initproc)pyrf_cpu_map__init,
610};
611
612static int pyrf_cpu_map__setup_types(void)
613{
614 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
615 return PyType_Ready(&pyrf_cpu_map__type);
616}
617
618struct pyrf_thread_map {
619 PyObject_HEAD
620
621 struct perf_thread_map *threads;
622};
623
624static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
625 PyObject *args, PyObject *kwargs)
626{
627 static char *kwlist[] = { "pid", "tid", "uid", NULL };
628 int pid = -1, tid = -1, uid = UINT_MAX;
629
630 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
631 kwlist, &pid, &tid, &uid))
632 return -1;
633
634 pthreads->threads = thread_map__new(pid, tid, uid);
635 if (pthreads->threads == NULL)
636 return -1;
637 return 0;
638}
639
640static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
641{
642 perf_thread_map__put(pthreads->threads);
643 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
644}
645
646static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
647{
648 struct pyrf_thread_map *pthreads = (void *)obj;
649
650 return pthreads->threads->nr;
651}
652
653static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
654{
655 struct pyrf_thread_map *pthreads = (void *)obj;
656
657 if (i >= pthreads->threads->nr)
658 return NULL;
659
660 return Py_BuildValue("i", pthreads->threads->map[i]);
661}
662
663static PySequenceMethods pyrf_thread_map__sequence_methods = {
664 .sq_length = pyrf_thread_map__length,
665 .sq_item = pyrf_thread_map__item,
666};
667
668static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
669
670static PyTypeObject pyrf_thread_map__type = {
671 PyVarObject_HEAD_INIT(NULL, 0)
672 .tp_name = "perf.thread_map",
673 .tp_basicsize = sizeof(struct pyrf_thread_map),
674 .tp_dealloc = (destructor)pyrf_thread_map__delete,
675 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
676 .tp_doc = pyrf_thread_map__doc,
677 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
678 .tp_init = (initproc)pyrf_thread_map__init,
679};
680
681static int pyrf_thread_map__setup_types(void)
682{
683 pyrf_thread_map__type.tp_new = PyType_GenericNew;
684 return PyType_Ready(&pyrf_thread_map__type);
685}
686
687struct pyrf_evsel {
688 PyObject_HEAD
689
690 struct evsel evsel;
691};
692
693static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
694 PyObject *args, PyObject *kwargs)
695{
696 struct perf_event_attr attr = {
697 .type = PERF_TYPE_HARDWARE,
698 .config = PERF_COUNT_HW_CPU_CYCLES,
699 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
700 };
701 static char *kwlist[] = {
702 "type",
703 "config",
704 "sample_freq",
705 "sample_period",
706 "sample_type",
707 "read_format",
708 "disabled",
709 "inherit",
710 "pinned",
711 "exclusive",
712 "exclude_user",
713 "exclude_kernel",
714 "exclude_hv",
715 "exclude_idle",
716 "mmap",
717 "context_switch",
718 "comm",
719 "freq",
720 "inherit_stat",
721 "enable_on_exec",
722 "task",
723 "watermark",
724 "precise_ip",
725 "mmap_data",
726 "sample_id_all",
727 "wakeup_events",
728 "bp_type",
729 "bp_addr",
730 "bp_len",
731 NULL
732 };
733 u64 sample_period = 0;
734 u32 disabled = 0,
735 inherit = 0,
736 pinned = 0,
737 exclusive = 0,
738 exclude_user = 0,
739 exclude_kernel = 0,
740 exclude_hv = 0,
741 exclude_idle = 0,
742 mmap = 0,
743 context_switch = 0,
744 comm = 0,
745 freq = 1,
746 inherit_stat = 0,
747 enable_on_exec = 0,
748 task = 0,
749 watermark = 0,
750 precise_ip = 0,
751 mmap_data = 0,
752 sample_id_all = 1;
753 int idx = 0;
754
755 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
756 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
757 &attr.type, &attr.config, &attr.sample_freq,
758 &sample_period, &attr.sample_type,
759 &attr.read_format, &disabled, &inherit,
760 &pinned, &exclusive, &exclude_user,
761 &exclude_kernel, &exclude_hv, &exclude_idle,
762 &mmap, &context_switch, &comm, &freq, &inherit_stat,
763 &enable_on_exec, &task, &watermark,
764 &precise_ip, &mmap_data, &sample_id_all,
765 &attr.wakeup_events, &attr.bp_type,
766 &attr.bp_addr, &attr.bp_len, &idx))
767 return -1;
768
769 /* union... */
770 if (sample_period != 0) {
771 if (attr.sample_freq != 0)
772 return -1; /* FIXME: throw right exception */
773 attr.sample_period = sample_period;
774 }
775
776 /* Bitfields */
777 attr.disabled = disabled;
778 attr.inherit = inherit;
779 attr.pinned = pinned;
780 attr.exclusive = exclusive;
781 attr.exclude_user = exclude_user;
782 attr.exclude_kernel = exclude_kernel;
783 attr.exclude_hv = exclude_hv;
784 attr.exclude_idle = exclude_idle;
785 attr.mmap = mmap;
786 attr.context_switch = context_switch;
787 attr.comm = comm;
788 attr.freq = freq;
789 attr.inherit_stat = inherit_stat;
790 attr.enable_on_exec = enable_on_exec;
791 attr.task = task;
792 attr.watermark = watermark;
793 attr.precise_ip = precise_ip;
794 attr.mmap_data = mmap_data;
795 attr.sample_id_all = sample_id_all;
796 attr.size = sizeof(attr);
797
798 evsel__init(&pevsel->evsel, &attr, idx);
799 return 0;
800}
801
802static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
803{
804 evsel__exit(&pevsel->evsel);
805 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
806}
807
808static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
809 PyObject *args, PyObject *kwargs)
810{
811 struct evsel *evsel = &pevsel->evsel;
812 struct perf_cpu_map *cpus = NULL;
813 struct perf_thread_map *threads = NULL;
814 PyObject *pcpus = NULL, *pthreads = NULL;
815 int group = 0, inherit = 0;
816 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
817
818 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
819 &pcpus, &pthreads, &group, &inherit))
820 return NULL;
821
822 if (pthreads != NULL)
823 threads = ((struct pyrf_thread_map *)pthreads)->threads;
824
825 if (pcpus != NULL)
826 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
827
828 evsel->core.attr.inherit = inherit;
829 /*
830 * This will group just the fds for this single evsel, to group
831 * multiple events, use evlist.open().
832 */
833 if (evsel__open(evsel, cpus, threads) < 0) {
834 PyErr_SetFromErrno(PyExc_OSError);
835 return NULL;
836 }
837
838 Py_INCREF(Py_None);
839 return Py_None;
840}
841
842static PyMethodDef pyrf_evsel__methods[] = {
843 {
844 .ml_name = "open",
845 .ml_meth = (PyCFunction)pyrf_evsel__open,
846 .ml_flags = METH_VARARGS | METH_KEYWORDS,
847 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
848 },
849 { .ml_name = NULL, }
850};
851
852static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
853
854static PyTypeObject pyrf_evsel__type = {
855 PyVarObject_HEAD_INIT(NULL, 0)
856 .tp_name = "perf.evsel",
857 .tp_basicsize = sizeof(struct pyrf_evsel),
858 .tp_dealloc = (destructor)pyrf_evsel__delete,
859 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
860 .tp_doc = pyrf_evsel__doc,
861 .tp_methods = pyrf_evsel__methods,
862 .tp_init = (initproc)pyrf_evsel__init,
863};
864
865static int pyrf_evsel__setup_types(void)
866{
867 pyrf_evsel__type.tp_new = PyType_GenericNew;
868 return PyType_Ready(&pyrf_evsel__type);
869}
870
871struct pyrf_evlist {
872 PyObject_HEAD
873
874 struct evlist evlist;
875};
876
877static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
878 PyObject *args, PyObject *kwargs __maybe_unused)
879{
880 PyObject *pcpus = NULL, *pthreads = NULL;
881 struct perf_cpu_map *cpus;
882 struct perf_thread_map *threads;
883
884 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
885 return -1;
886
887 threads = ((struct pyrf_thread_map *)pthreads)->threads;
888 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
889 evlist__init(&pevlist->evlist, cpus, threads);
890 return 0;
891}
892
893static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
894{
895 evlist__exit(&pevlist->evlist);
896 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
897}
898
899static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
900 PyObject *args, PyObject *kwargs)
901{
902 struct evlist *evlist = &pevlist->evlist;
903 static char *kwlist[] = { "pages", "overwrite", NULL };
904 int pages = 128, overwrite = false;
905
906 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
907 &pages, &overwrite))
908 return NULL;
909
910 if (evlist__mmap(evlist, pages) < 0) {
911 PyErr_SetFromErrno(PyExc_OSError);
912 return NULL;
913 }
914
915 Py_INCREF(Py_None);
916 return Py_None;
917}
918
919static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
920 PyObject *args, PyObject *kwargs)
921{
922 struct evlist *evlist = &pevlist->evlist;
923 static char *kwlist[] = { "timeout", NULL };
924 int timeout = -1, n;
925
926 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
927 return NULL;
928
929 n = evlist__poll(evlist, timeout);
930 if (n < 0) {
931 PyErr_SetFromErrno(PyExc_OSError);
932 return NULL;
933 }
934
935 return Py_BuildValue("i", n);
936}
937
938static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
939 PyObject *args __maybe_unused,
940 PyObject *kwargs __maybe_unused)
941{
942 struct evlist *evlist = &pevlist->evlist;
943 PyObject *list = PyList_New(0);
944 int i;
945
946 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
947 PyObject *file;
948#if PY_MAJOR_VERSION < 3
949 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
950
951 if (fp == NULL)
952 goto free_list;
953
954 file = PyFile_FromFile(fp, "perf", "r", NULL);
955#else
956 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
957 NULL, NULL, NULL, 0);
958#endif
959 if (file == NULL)
960 goto free_list;
961
962 if (PyList_Append(list, file) != 0) {
963 Py_DECREF(file);
964 goto free_list;
965 }
966
967 Py_DECREF(file);
968 }
969
970 return list;
971free_list:
972 return PyErr_NoMemory();
973}
974
975
976static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
977 PyObject *args,
978 PyObject *kwargs __maybe_unused)
979{
980 struct evlist *evlist = &pevlist->evlist;
981 PyObject *pevsel;
982 struct evsel *evsel;
983
984 if (!PyArg_ParseTuple(args, "O", &pevsel))
985 return NULL;
986
987 Py_INCREF(pevsel);
988 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
989 evsel->idx = evlist->core.nr_entries;
990 evlist__add(evlist, evsel);
991
992 return Py_BuildValue("i", evlist->core.nr_entries);
993}
994
995static struct mmap *get_md(struct evlist *evlist, int cpu)
996{
997 int i;
998
999 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1000 struct mmap *md = &evlist->mmap[i];
1001
1002 if (md->core.cpu == cpu)
1003 return md;
1004 }
1005
1006 return NULL;
1007}
1008
1009static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1010 PyObject *args, PyObject *kwargs)
1011{
1012 struct evlist *evlist = &pevlist->evlist;
1013 union perf_event *event;
1014 int sample_id_all = 1, cpu;
1015 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1016 struct mmap *md;
1017 int err;
1018
1019 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1020 &cpu, &sample_id_all))
1021 return NULL;
1022
1023 md = get_md(evlist, cpu);
1024 if (!md)
1025 return NULL;
1026
1027 if (perf_mmap__read_init(&md->core) < 0)
1028 goto end;
1029
1030 event = perf_mmap__read_event(&md->core);
1031 if (event != NULL) {
1032 PyObject *pyevent = pyrf_event__new(event);
1033 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1034 struct evsel *evsel;
1035
1036 if (pyevent == NULL)
1037 return PyErr_NoMemory();
1038
1039 evsel = perf_evlist__event2evsel(evlist, event);
1040 if (!evsel) {
1041 Py_INCREF(Py_None);
1042 return Py_None;
1043 }
1044
1045 pevent->evsel = evsel;
1046
1047 err = evsel__parse_sample(evsel, event, &pevent->sample);
1048
1049 /* Consume the even only after we parsed it out. */
1050 perf_mmap__consume(&md->core);
1051
1052 if (err)
1053 return PyErr_Format(PyExc_OSError,
1054 "perf: can't parse sample, err=%d", err);
1055 return pyevent;
1056 }
1057end:
1058 Py_INCREF(Py_None);
1059 return Py_None;
1060}
1061
1062static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1063 PyObject *args, PyObject *kwargs)
1064{
1065 struct evlist *evlist = &pevlist->evlist;
1066 int group = 0;
1067 static char *kwlist[] = { "group", NULL };
1068
1069 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1070 return NULL;
1071
1072 if (group)
1073 perf_evlist__set_leader(evlist);
1074
1075 if (evlist__open(evlist) < 0) {
1076 PyErr_SetFromErrno(PyExc_OSError);
1077 return NULL;
1078 }
1079
1080 Py_INCREF(Py_None);
1081 return Py_None;
1082}
1083
1084static PyMethodDef pyrf_evlist__methods[] = {
1085 {
1086 .ml_name = "mmap",
1087 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1088 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1089 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1090 },
1091 {
1092 .ml_name = "open",
1093 .ml_meth = (PyCFunction)pyrf_evlist__open,
1094 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1095 .ml_doc = PyDoc_STR("open the file descriptors.")
1096 },
1097 {
1098 .ml_name = "poll",
1099 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1100 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1101 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1102 },
1103 {
1104 .ml_name = "get_pollfd",
1105 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1106 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1107 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1108 },
1109 {
1110 .ml_name = "add",
1111 .ml_meth = (PyCFunction)pyrf_evlist__add,
1112 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1113 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1114 },
1115 {
1116 .ml_name = "read_on_cpu",
1117 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1118 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1119 .ml_doc = PyDoc_STR("reads an event.")
1120 },
1121 { .ml_name = NULL, }
1122};
1123
1124static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1125{
1126 struct pyrf_evlist *pevlist = (void *)obj;
1127
1128 return pevlist->evlist.core.nr_entries;
1129}
1130
1131static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1132{
1133 struct pyrf_evlist *pevlist = (void *)obj;
1134 struct evsel *pos;
1135
1136 if (i >= pevlist->evlist.core.nr_entries)
1137 return NULL;
1138
1139 evlist__for_each_entry(&pevlist->evlist, pos) {
1140 if (i-- == 0)
1141 break;
1142 }
1143
1144 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1145}
1146
1147static PySequenceMethods pyrf_evlist__sequence_methods = {
1148 .sq_length = pyrf_evlist__length,
1149 .sq_item = pyrf_evlist__item,
1150};
1151
1152static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1153
1154static PyTypeObject pyrf_evlist__type = {
1155 PyVarObject_HEAD_INIT(NULL, 0)
1156 .tp_name = "perf.evlist",
1157 .tp_basicsize = sizeof(struct pyrf_evlist),
1158 .tp_dealloc = (destructor)pyrf_evlist__delete,
1159 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1160 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1161 .tp_doc = pyrf_evlist__doc,
1162 .tp_methods = pyrf_evlist__methods,
1163 .tp_init = (initproc)pyrf_evlist__init,
1164};
1165
1166static int pyrf_evlist__setup_types(void)
1167{
1168 pyrf_evlist__type.tp_new = PyType_GenericNew;
1169 return PyType_Ready(&pyrf_evlist__type);
1170}
1171
1172#define PERF_CONST(name) { #name, PERF_##name }
1173
1174static struct {
1175 const char *name;
1176 int value;
1177} perf__constants[] = {
1178 PERF_CONST(TYPE_HARDWARE),
1179 PERF_CONST(TYPE_SOFTWARE),
1180 PERF_CONST(TYPE_TRACEPOINT),
1181 PERF_CONST(TYPE_HW_CACHE),
1182 PERF_CONST(TYPE_RAW),
1183 PERF_CONST(TYPE_BREAKPOINT),
1184
1185 PERF_CONST(COUNT_HW_CPU_CYCLES),
1186 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1187 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1188 PERF_CONST(COUNT_HW_CACHE_MISSES),
1189 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1190 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1191 PERF_CONST(COUNT_HW_BUS_CYCLES),
1192 PERF_CONST(COUNT_HW_CACHE_L1D),
1193 PERF_CONST(COUNT_HW_CACHE_L1I),
1194 PERF_CONST(COUNT_HW_CACHE_LL),
1195 PERF_CONST(COUNT_HW_CACHE_DTLB),
1196 PERF_CONST(COUNT_HW_CACHE_ITLB),
1197 PERF_CONST(COUNT_HW_CACHE_BPU),
1198 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1199 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1200 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1201 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1202 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1203
1204 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1205 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1206
1207 PERF_CONST(COUNT_SW_CPU_CLOCK),
1208 PERF_CONST(COUNT_SW_TASK_CLOCK),
1209 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1210 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1211 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1212 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1213 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1214 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1215 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1216 PERF_CONST(COUNT_SW_DUMMY),
1217
1218 PERF_CONST(SAMPLE_IP),
1219 PERF_CONST(SAMPLE_TID),
1220 PERF_CONST(SAMPLE_TIME),
1221 PERF_CONST(SAMPLE_ADDR),
1222 PERF_CONST(SAMPLE_READ),
1223 PERF_CONST(SAMPLE_CALLCHAIN),
1224 PERF_CONST(SAMPLE_ID),
1225 PERF_CONST(SAMPLE_CPU),
1226 PERF_CONST(SAMPLE_PERIOD),
1227 PERF_CONST(SAMPLE_STREAM_ID),
1228 PERF_CONST(SAMPLE_RAW),
1229
1230 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1231 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1232 PERF_CONST(FORMAT_ID),
1233 PERF_CONST(FORMAT_GROUP),
1234
1235 PERF_CONST(RECORD_MMAP),
1236 PERF_CONST(RECORD_LOST),
1237 PERF_CONST(RECORD_COMM),
1238 PERF_CONST(RECORD_EXIT),
1239 PERF_CONST(RECORD_THROTTLE),
1240 PERF_CONST(RECORD_UNTHROTTLE),
1241 PERF_CONST(RECORD_FORK),
1242 PERF_CONST(RECORD_READ),
1243 PERF_CONST(RECORD_SAMPLE),
1244 PERF_CONST(RECORD_MMAP2),
1245 PERF_CONST(RECORD_AUX),
1246 PERF_CONST(RECORD_ITRACE_START),
1247 PERF_CONST(RECORD_LOST_SAMPLES),
1248 PERF_CONST(RECORD_SWITCH),
1249 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1250
1251 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1252 { .name = NULL, },
1253};
1254
1255static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1256 PyObject *args, PyObject *kwargs)
1257{
1258 struct tep_event *tp_format;
1259 static char *kwlist[] = { "sys", "name", NULL };
1260 char *sys = NULL;
1261 char *name = NULL;
1262
1263 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1264 &sys, &name))
1265 return NULL;
1266
1267 tp_format = trace_event__tp_format(sys, name);
1268 if (IS_ERR(tp_format))
1269 return _PyLong_FromLong(-1);
1270
1271 return _PyLong_FromLong(tp_format->id);
1272}
1273
1274static PyMethodDef perf__methods[] = {
1275 {
1276 .ml_name = "tracepoint",
1277 .ml_meth = (PyCFunction) pyrf__tracepoint,
1278 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1279 .ml_doc = PyDoc_STR("Get tracepoint config.")
1280 },
1281 { .ml_name = NULL, }
1282};
1283
1284#if PY_MAJOR_VERSION < 3
1285PyMODINIT_FUNC initperf(void)
1286#else
1287PyMODINIT_FUNC PyInit_perf(void)
1288#endif
1289{
1290 PyObject *obj;
1291 int i;
1292 PyObject *dict;
1293#if PY_MAJOR_VERSION < 3
1294 PyObject *module = Py_InitModule("perf", perf__methods);
1295#else
1296 static struct PyModuleDef moduledef = {
1297 PyModuleDef_HEAD_INIT,
1298 "perf", /* m_name */
1299 "", /* m_doc */
1300 -1, /* m_size */
1301 perf__methods, /* m_methods */
1302 NULL, /* m_reload */
1303 NULL, /* m_traverse */
1304 NULL, /* m_clear */
1305 NULL, /* m_free */
1306 };
1307 PyObject *module = PyModule_Create(&moduledef);
1308#endif
1309
1310 if (module == NULL ||
1311 pyrf_event__setup_types() < 0 ||
1312 pyrf_evlist__setup_types() < 0 ||
1313 pyrf_evsel__setup_types() < 0 ||
1314 pyrf_thread_map__setup_types() < 0 ||
1315 pyrf_cpu_map__setup_types() < 0)
1316#if PY_MAJOR_VERSION < 3
1317 return;
1318#else
1319 return module;
1320#endif
1321
1322 /* The page_size is placed in util object. */
1323 page_size = sysconf(_SC_PAGE_SIZE);
1324
1325 Py_INCREF(&pyrf_evlist__type);
1326 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1327
1328 Py_INCREF(&pyrf_evsel__type);
1329 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1330
1331 Py_INCREF(&pyrf_mmap_event__type);
1332 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1333
1334 Py_INCREF(&pyrf_lost_event__type);
1335 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1336
1337 Py_INCREF(&pyrf_comm_event__type);
1338 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1339
1340 Py_INCREF(&pyrf_task_event__type);
1341 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1342
1343 Py_INCREF(&pyrf_throttle_event__type);
1344 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1345
1346 Py_INCREF(&pyrf_task_event__type);
1347 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1348
1349 Py_INCREF(&pyrf_read_event__type);
1350 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1351
1352 Py_INCREF(&pyrf_sample_event__type);
1353 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1354
1355 Py_INCREF(&pyrf_context_switch_event__type);
1356 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1357
1358 Py_INCREF(&pyrf_thread_map__type);
1359 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1360
1361 Py_INCREF(&pyrf_cpu_map__type);
1362 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1363
1364 dict = PyModule_GetDict(module);
1365 if (dict == NULL)
1366 goto error;
1367
1368 for (i = 0; perf__constants[i].name != NULL; i++) {
1369 obj = _PyLong_FromLong(perf__constants[i].value);
1370 if (obj == NULL)
1371 goto error;
1372 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1373 Py_DECREF(obj);
1374 }
1375
1376error:
1377 if (PyErr_Occurred())
1378 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1379#if PY_MAJOR_VERSION >= 3
1380 return module;
1381#endif
1382}
1383
1384/*
1385 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1386 * binding.
1387 */
1388void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1389 int fd, int group_fd, unsigned long flags)
1390{
1391}