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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#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/* Define PyVarObject_HEAD_INIT for python 2.5 */
12#ifndef PyVarObject_HEAD_INIT
13# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
14#endif
15
16struct throttle_event {
17 struct perf_event_header header;
18 u64 time;
19 u64 id;
20 u64 stream_id;
21};
22
23PyMODINIT_FUNC initperf(void);
24
25#define member_def(type, member, ptype, help) \
26 { #member, ptype, \
27 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
28 0, help }
29
30#define sample_member_def(name, member, ptype, help) \
31 { #name, ptype, \
32 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
33 0, help }
34
35struct pyrf_event {
36 PyObject_HEAD
37 struct perf_sample sample;
38 union perf_event event;
39};
40
41#define sample_members \
42 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
43 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
44 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
45 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
46 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
47 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
48 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
49 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
50 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
51
52static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
53
54static PyMemberDef pyrf_mmap_event__members[] = {
55 sample_members
56 member_def(perf_event_header, type, T_UINT, "event type"),
57 member_def(mmap_event, pid, T_UINT, "event pid"),
58 member_def(mmap_event, tid, T_UINT, "event tid"),
59 member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
60 member_def(mmap_event, len, T_ULONGLONG, "map length"),
61 member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
62 member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
63 { .name = NULL, },
64};
65
66static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
67{
68 PyObject *ret;
69 char *s;
70
71 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
72 "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
73 "filename: %s }",
74 pevent->event.mmap.pid, pevent->event.mmap.tid,
75 pevent->event.mmap.start, pevent->event.mmap.len,
76 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
77 ret = PyErr_NoMemory();
78 } else {
79 ret = PyString_FromString(s);
80 free(s);
81 }
82 return ret;
83}
84
85static PyTypeObject pyrf_mmap_event__type = {
86 PyVarObject_HEAD_INIT(NULL, 0)
87 .tp_name = "perf.mmap_event",
88 .tp_basicsize = sizeof(struct pyrf_event),
89 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
90 .tp_doc = pyrf_mmap_event__doc,
91 .tp_members = pyrf_mmap_event__members,
92 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
93};
94
95static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
96
97static PyMemberDef pyrf_task_event__members[] = {
98 sample_members
99 member_def(perf_event_header, type, T_UINT, "event type"),
100 member_def(fork_event, pid, T_UINT, "event pid"),
101 member_def(fork_event, ppid, T_UINT, "event ppid"),
102 member_def(fork_event, tid, T_UINT, "event tid"),
103 member_def(fork_event, ptid, T_UINT, "event ptid"),
104 member_def(fork_event, time, T_ULONGLONG, "timestamp"),
105 { .name = NULL, },
106};
107
108static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
109{
110 return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
111 "ptid: %u, time: %" PRIu64 "}",
112 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
113 pevent->event.fork.pid,
114 pevent->event.fork.ppid,
115 pevent->event.fork.tid,
116 pevent->event.fork.ptid,
117 pevent->event.fork.time);
118}
119
120static PyTypeObject pyrf_task_event__type = {
121 PyVarObject_HEAD_INIT(NULL, 0)
122 .tp_name = "perf.task_event",
123 .tp_basicsize = sizeof(struct pyrf_event),
124 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
125 .tp_doc = pyrf_task_event__doc,
126 .tp_members = pyrf_task_event__members,
127 .tp_repr = (reprfunc)pyrf_task_event__repr,
128};
129
130static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
131
132static PyMemberDef pyrf_comm_event__members[] = {
133 sample_members
134 member_def(perf_event_header, type, T_UINT, "event type"),
135 member_def(comm_event, pid, T_UINT, "event pid"),
136 member_def(comm_event, tid, T_UINT, "event tid"),
137 member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
138 { .name = NULL, },
139};
140
141static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
142{
143 return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
144 pevent->event.comm.pid,
145 pevent->event.comm.tid,
146 pevent->event.comm.comm);
147}
148
149static PyTypeObject pyrf_comm_event__type = {
150 PyVarObject_HEAD_INIT(NULL, 0)
151 .tp_name = "perf.comm_event",
152 .tp_basicsize = sizeof(struct pyrf_event),
153 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
154 .tp_doc = pyrf_comm_event__doc,
155 .tp_members = pyrf_comm_event__members,
156 .tp_repr = (reprfunc)pyrf_comm_event__repr,
157};
158
159static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
160
161static PyMemberDef pyrf_throttle_event__members[] = {
162 sample_members
163 member_def(perf_event_header, type, T_UINT, "event type"),
164 member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
165 member_def(throttle_event, id, T_ULONGLONG, "event id"),
166 member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
167 { .name = NULL, },
168};
169
170static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
171{
172 struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
173
174 return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
175 ", stream_id: %" PRIu64 " }",
176 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
177 te->time, te->id, te->stream_id);
178}
179
180static PyTypeObject pyrf_throttle_event__type = {
181 PyVarObject_HEAD_INIT(NULL, 0)
182 .tp_name = "perf.throttle_event",
183 .tp_basicsize = sizeof(struct pyrf_event),
184 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
185 .tp_doc = pyrf_throttle_event__doc,
186 .tp_members = pyrf_throttle_event__members,
187 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
188};
189
190static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
191
192static PyMemberDef pyrf_lost_event__members[] = {
193 sample_members
194 member_def(lost_event, id, T_ULONGLONG, "event id"),
195 member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
196 { .name = NULL, },
197};
198
199static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
200{
201 PyObject *ret;
202 char *s;
203
204 if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
205 "lost: %#" PRIx64 " }",
206 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
207 ret = PyErr_NoMemory();
208 } else {
209 ret = PyString_FromString(s);
210 free(s);
211 }
212 return ret;
213}
214
215static PyTypeObject pyrf_lost_event__type = {
216 PyVarObject_HEAD_INIT(NULL, 0)
217 .tp_name = "perf.lost_event",
218 .tp_basicsize = sizeof(struct pyrf_event),
219 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
220 .tp_doc = pyrf_lost_event__doc,
221 .tp_members = pyrf_lost_event__members,
222 .tp_repr = (reprfunc)pyrf_lost_event__repr,
223};
224
225static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
226
227static PyMemberDef pyrf_read_event__members[] = {
228 sample_members
229 member_def(read_event, pid, T_UINT, "event pid"),
230 member_def(read_event, tid, T_UINT, "event tid"),
231 { .name = NULL, },
232};
233
234static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
235{
236 return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
237 pevent->event.read.pid,
238 pevent->event.read.tid);
239 /*
240 * FIXME: return the array of read values,
241 * making this method useful ;-)
242 */
243}
244
245static PyTypeObject pyrf_read_event__type = {
246 PyVarObject_HEAD_INIT(NULL, 0)
247 .tp_name = "perf.read_event",
248 .tp_basicsize = sizeof(struct pyrf_event),
249 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
250 .tp_doc = pyrf_read_event__doc,
251 .tp_members = pyrf_read_event__members,
252 .tp_repr = (reprfunc)pyrf_read_event__repr,
253};
254
255static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
256
257static PyMemberDef pyrf_sample_event__members[] = {
258 sample_members
259 member_def(perf_event_header, type, T_UINT, "event type"),
260 { .name = NULL, },
261};
262
263static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
264{
265 PyObject *ret;
266 char *s;
267
268 if (asprintf(&s, "{ type: sample }") < 0) {
269 ret = PyErr_NoMemory();
270 } else {
271 ret = PyString_FromString(s);
272 free(s);
273 }
274 return ret;
275}
276
277static PyTypeObject pyrf_sample_event__type = {
278 PyVarObject_HEAD_INIT(NULL, 0)
279 .tp_name = "perf.sample_event",
280 .tp_basicsize = sizeof(struct pyrf_event),
281 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
282 .tp_doc = pyrf_sample_event__doc,
283 .tp_members = pyrf_sample_event__members,
284 .tp_repr = (reprfunc)pyrf_sample_event__repr,
285};
286
287static int pyrf_event__setup_types(void)
288{
289 int err;
290 pyrf_mmap_event__type.tp_new =
291 pyrf_task_event__type.tp_new =
292 pyrf_comm_event__type.tp_new =
293 pyrf_lost_event__type.tp_new =
294 pyrf_read_event__type.tp_new =
295 pyrf_sample_event__type.tp_new =
296 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
297 err = PyType_Ready(&pyrf_mmap_event__type);
298 if (err < 0)
299 goto out;
300 err = PyType_Ready(&pyrf_lost_event__type);
301 if (err < 0)
302 goto out;
303 err = PyType_Ready(&pyrf_task_event__type);
304 if (err < 0)
305 goto out;
306 err = PyType_Ready(&pyrf_comm_event__type);
307 if (err < 0)
308 goto out;
309 err = PyType_Ready(&pyrf_throttle_event__type);
310 if (err < 0)
311 goto out;
312 err = PyType_Ready(&pyrf_read_event__type);
313 if (err < 0)
314 goto out;
315 err = PyType_Ready(&pyrf_sample_event__type);
316 if (err < 0)
317 goto out;
318out:
319 return err;
320}
321
322static PyTypeObject *pyrf_event__type[] = {
323 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
324 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
325 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
326 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
327 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
328 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
329 [PERF_RECORD_FORK] = &pyrf_task_event__type,
330 [PERF_RECORD_READ] = &pyrf_read_event__type,
331 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
332};
333
334static PyObject *pyrf_event__new(union perf_event *event)
335{
336 struct pyrf_event *pevent;
337 PyTypeObject *ptype;
338
339 if (event->header.type < PERF_RECORD_MMAP ||
340 event->header.type > PERF_RECORD_SAMPLE)
341 return NULL;
342
343 ptype = pyrf_event__type[event->header.type];
344 pevent = PyObject_New(struct pyrf_event, ptype);
345 if (pevent != NULL)
346 memcpy(&pevent->event, event, event->header.size);
347 return (PyObject *)pevent;
348}
349
350struct pyrf_cpu_map {
351 PyObject_HEAD
352
353 struct cpu_map *cpus;
354};
355
356static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
357 PyObject *args, PyObject *kwargs)
358{
359 static char *kwlist[] = { "cpustr", NULL };
360 char *cpustr = NULL;
361
362 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
363 kwlist, &cpustr))
364 return -1;
365
366 pcpus->cpus = cpu_map__new(cpustr);
367 if (pcpus->cpus == NULL)
368 return -1;
369 return 0;
370}
371
372static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
373{
374 cpu_map__delete(pcpus->cpus);
375 pcpus->ob_type->tp_free((PyObject*)pcpus);
376}
377
378static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
379{
380 struct pyrf_cpu_map *pcpus = (void *)obj;
381
382 return pcpus->cpus->nr;
383}
384
385static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
386{
387 struct pyrf_cpu_map *pcpus = (void *)obj;
388
389 if (i >= pcpus->cpus->nr)
390 return NULL;
391
392 return Py_BuildValue("i", pcpus->cpus->map[i]);
393}
394
395static PySequenceMethods pyrf_cpu_map__sequence_methods = {
396 .sq_length = pyrf_cpu_map__length,
397 .sq_item = pyrf_cpu_map__item,
398};
399
400static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
401
402static PyTypeObject pyrf_cpu_map__type = {
403 PyVarObject_HEAD_INIT(NULL, 0)
404 .tp_name = "perf.cpu_map",
405 .tp_basicsize = sizeof(struct pyrf_cpu_map),
406 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
407 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
408 .tp_doc = pyrf_cpu_map__doc,
409 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
410 .tp_init = (initproc)pyrf_cpu_map__init,
411};
412
413static int pyrf_cpu_map__setup_types(void)
414{
415 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
416 return PyType_Ready(&pyrf_cpu_map__type);
417}
418
419struct pyrf_thread_map {
420 PyObject_HEAD
421
422 struct thread_map *threads;
423};
424
425static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
426 PyObject *args, PyObject *kwargs)
427{
428 static char *kwlist[] = { "pid", "tid", "uid", NULL };
429 int pid = -1, tid = -1, uid = UINT_MAX;
430
431 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
432 kwlist, &pid, &tid, &uid))
433 return -1;
434
435 pthreads->threads = thread_map__new(pid, tid, uid);
436 if (pthreads->threads == NULL)
437 return -1;
438 return 0;
439}
440
441static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
442{
443 thread_map__delete(pthreads->threads);
444 pthreads->ob_type->tp_free((PyObject*)pthreads);
445}
446
447static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
448{
449 struct pyrf_thread_map *pthreads = (void *)obj;
450
451 return pthreads->threads->nr;
452}
453
454static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
455{
456 struct pyrf_thread_map *pthreads = (void *)obj;
457
458 if (i >= pthreads->threads->nr)
459 return NULL;
460
461 return Py_BuildValue("i", pthreads->threads->map[i]);
462}
463
464static PySequenceMethods pyrf_thread_map__sequence_methods = {
465 .sq_length = pyrf_thread_map__length,
466 .sq_item = pyrf_thread_map__item,
467};
468
469static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
470
471static PyTypeObject pyrf_thread_map__type = {
472 PyVarObject_HEAD_INIT(NULL, 0)
473 .tp_name = "perf.thread_map",
474 .tp_basicsize = sizeof(struct pyrf_thread_map),
475 .tp_dealloc = (destructor)pyrf_thread_map__delete,
476 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
477 .tp_doc = pyrf_thread_map__doc,
478 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
479 .tp_init = (initproc)pyrf_thread_map__init,
480};
481
482static int pyrf_thread_map__setup_types(void)
483{
484 pyrf_thread_map__type.tp_new = PyType_GenericNew;
485 return PyType_Ready(&pyrf_thread_map__type);
486}
487
488struct pyrf_evsel {
489 PyObject_HEAD
490
491 struct perf_evsel evsel;
492};
493
494static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
495 PyObject *args, PyObject *kwargs)
496{
497 struct perf_event_attr attr = {
498 .type = PERF_TYPE_HARDWARE,
499 .config = PERF_COUNT_HW_CPU_CYCLES,
500 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
501 };
502 static char *kwlist[] = {
503 "type",
504 "config",
505 "sample_freq",
506 "sample_period",
507 "sample_type",
508 "read_format",
509 "disabled",
510 "inherit",
511 "pinned",
512 "exclusive",
513 "exclude_user",
514 "exclude_kernel",
515 "exclude_hv",
516 "exclude_idle",
517 "mmap",
518 "comm",
519 "freq",
520 "inherit_stat",
521 "enable_on_exec",
522 "task",
523 "watermark",
524 "precise_ip",
525 "mmap_data",
526 "sample_id_all",
527 "wakeup_events",
528 "bp_type",
529 "bp_addr",
530 "bp_len",
531 NULL
532 };
533 u64 sample_period = 0;
534 u32 disabled = 0,
535 inherit = 0,
536 pinned = 0,
537 exclusive = 0,
538 exclude_user = 0,
539 exclude_kernel = 0,
540 exclude_hv = 0,
541 exclude_idle = 0,
542 mmap = 0,
543 comm = 0,
544 freq = 1,
545 inherit_stat = 0,
546 enable_on_exec = 0,
547 task = 0,
548 watermark = 0,
549 precise_ip = 0,
550 mmap_data = 0,
551 sample_id_all = 1;
552 int idx = 0;
553
554 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
555 "|iKiKKiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
556 &attr.type, &attr.config, &attr.sample_freq,
557 &sample_period, &attr.sample_type,
558 &attr.read_format, &disabled, &inherit,
559 &pinned, &exclusive, &exclude_user,
560 &exclude_kernel, &exclude_hv, &exclude_idle,
561 &mmap, &comm, &freq, &inherit_stat,
562 &enable_on_exec, &task, &watermark,
563 &precise_ip, &mmap_data, &sample_id_all,
564 &attr.wakeup_events, &attr.bp_type,
565 &attr.bp_addr, &attr.bp_len, &idx))
566 return -1;
567
568 /* union... */
569 if (sample_period != 0) {
570 if (attr.sample_freq != 0)
571 return -1; /* FIXME: throw right exception */
572 attr.sample_period = sample_period;
573 }
574
575 /* Bitfields */
576 attr.disabled = disabled;
577 attr.inherit = inherit;
578 attr.pinned = pinned;
579 attr.exclusive = exclusive;
580 attr.exclude_user = exclude_user;
581 attr.exclude_kernel = exclude_kernel;
582 attr.exclude_hv = exclude_hv;
583 attr.exclude_idle = exclude_idle;
584 attr.mmap = mmap;
585 attr.comm = comm;
586 attr.freq = freq;
587 attr.inherit_stat = inherit_stat;
588 attr.enable_on_exec = enable_on_exec;
589 attr.task = task;
590 attr.watermark = watermark;
591 attr.precise_ip = precise_ip;
592 attr.mmap_data = mmap_data;
593 attr.sample_id_all = sample_id_all;
594
595 perf_evsel__init(&pevsel->evsel, &attr, idx);
596 return 0;
597}
598
599static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
600{
601 perf_evsel__exit(&pevsel->evsel);
602 pevsel->ob_type->tp_free((PyObject*)pevsel);
603}
604
605static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
606 PyObject *args, PyObject *kwargs)
607{
608 struct perf_evsel *evsel = &pevsel->evsel;
609 struct cpu_map *cpus = NULL;
610 struct thread_map *threads = NULL;
611 PyObject *pcpus = NULL, *pthreads = NULL;
612 int group = 0, inherit = 0;
613 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
614
615 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
616 &pcpus, &pthreads, &group, &inherit))
617 return NULL;
618
619 if (pthreads != NULL)
620 threads = ((struct pyrf_thread_map *)pthreads)->threads;
621
622 if (pcpus != NULL)
623 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
624
625 evsel->attr.inherit = inherit;
626 /*
627 * This will group just the fds for this single evsel, to group
628 * multiple events, use evlist.open().
629 */
630 if (perf_evsel__open(evsel, cpus, threads, group, NULL) < 0) {
631 PyErr_SetFromErrno(PyExc_OSError);
632 return NULL;
633 }
634
635 Py_INCREF(Py_None);
636 return Py_None;
637}
638
639static PyMethodDef pyrf_evsel__methods[] = {
640 {
641 .ml_name = "open",
642 .ml_meth = (PyCFunction)pyrf_evsel__open,
643 .ml_flags = METH_VARARGS | METH_KEYWORDS,
644 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
645 },
646 { .ml_name = NULL, }
647};
648
649static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
650
651static PyTypeObject pyrf_evsel__type = {
652 PyVarObject_HEAD_INIT(NULL, 0)
653 .tp_name = "perf.evsel",
654 .tp_basicsize = sizeof(struct pyrf_evsel),
655 .tp_dealloc = (destructor)pyrf_evsel__delete,
656 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
657 .tp_doc = pyrf_evsel__doc,
658 .tp_methods = pyrf_evsel__methods,
659 .tp_init = (initproc)pyrf_evsel__init,
660};
661
662static int pyrf_evsel__setup_types(void)
663{
664 pyrf_evsel__type.tp_new = PyType_GenericNew;
665 return PyType_Ready(&pyrf_evsel__type);
666}
667
668struct pyrf_evlist {
669 PyObject_HEAD
670
671 struct perf_evlist evlist;
672};
673
674static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
675 PyObject *args, PyObject *kwargs __used)
676{
677 PyObject *pcpus = NULL, *pthreads = NULL;
678 struct cpu_map *cpus;
679 struct thread_map *threads;
680
681 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
682 return -1;
683
684 threads = ((struct pyrf_thread_map *)pthreads)->threads;
685 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
686 perf_evlist__init(&pevlist->evlist, cpus, threads);
687 return 0;
688}
689
690static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
691{
692 perf_evlist__exit(&pevlist->evlist);
693 pevlist->ob_type->tp_free((PyObject*)pevlist);
694}
695
696static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
697 PyObject *args, PyObject *kwargs)
698{
699 struct perf_evlist *evlist = &pevlist->evlist;
700 static char *kwlist[] = { "pages", "overwrite", NULL };
701 int pages = 128, overwrite = false;
702
703 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
704 &pages, &overwrite))
705 return NULL;
706
707 if (perf_evlist__mmap(evlist, pages, overwrite) < 0) {
708 PyErr_SetFromErrno(PyExc_OSError);
709 return NULL;
710 }
711
712 Py_INCREF(Py_None);
713 return Py_None;
714}
715
716static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
717 PyObject *args, PyObject *kwargs)
718{
719 struct perf_evlist *evlist = &pevlist->evlist;
720 static char *kwlist[] = { "timeout", NULL };
721 int timeout = -1, n;
722
723 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
724 return NULL;
725
726 n = poll(evlist->pollfd, evlist->nr_fds, timeout);
727 if (n < 0) {
728 PyErr_SetFromErrno(PyExc_OSError);
729 return NULL;
730 }
731
732 return Py_BuildValue("i", n);
733}
734
735static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
736 PyObject *args __used, PyObject *kwargs __used)
737{
738 struct perf_evlist *evlist = &pevlist->evlist;
739 PyObject *list = PyList_New(0);
740 int i;
741
742 for (i = 0; i < evlist->nr_fds; ++i) {
743 PyObject *file;
744 FILE *fp = fdopen(evlist->pollfd[i].fd, "r");
745
746 if (fp == NULL)
747 goto free_list;
748
749 file = PyFile_FromFile(fp, "perf", "r", NULL);
750 if (file == NULL)
751 goto free_list;
752
753 if (PyList_Append(list, file) != 0) {
754 Py_DECREF(file);
755 goto free_list;
756 }
757
758 Py_DECREF(file);
759 }
760
761 return list;
762free_list:
763 return PyErr_NoMemory();
764}
765
766
767static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
768 PyObject *args, PyObject *kwargs __used)
769{
770 struct perf_evlist *evlist = &pevlist->evlist;
771 PyObject *pevsel;
772 struct perf_evsel *evsel;
773
774 if (!PyArg_ParseTuple(args, "O", &pevsel))
775 return NULL;
776
777 Py_INCREF(pevsel);
778 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
779 evsel->idx = evlist->nr_entries;
780 perf_evlist__add(evlist, evsel);
781
782 return Py_BuildValue("i", evlist->nr_entries);
783}
784
785static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
786 PyObject *args, PyObject *kwargs)
787{
788 struct perf_evlist *evlist = &pevlist->evlist;
789 union perf_event *event;
790 int sample_id_all = 1, cpu;
791 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
792 int err;
793
794 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
795 &cpu, &sample_id_all))
796 return NULL;
797
798 event = perf_evlist__mmap_read(evlist, cpu);
799 if (event != NULL) {
800 struct perf_evsel *first;
801 PyObject *pyevent = pyrf_event__new(event);
802 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
803
804 if (pyevent == NULL)
805 return PyErr_NoMemory();
806
807 first = list_entry(evlist->entries.next, struct perf_evsel, node);
808 err = perf_event__parse_sample(event, first->attr.sample_type,
809 perf_evsel__sample_size(first),
810 sample_id_all, &pevent->sample, false);
811 if (err)
812 return PyErr_Format(PyExc_OSError,
813 "perf: can't parse sample, err=%d", err);
814 return pyevent;
815 }
816
817 Py_INCREF(Py_None);
818 return Py_None;
819}
820
821static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
822 PyObject *args, PyObject *kwargs)
823{
824 struct perf_evlist *evlist = &pevlist->evlist;
825 int group = 0;
826 static char *kwlist[] = { "group", NULL };
827
828 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
829 return NULL;
830
831 if (perf_evlist__open(evlist, group) < 0) {
832 PyErr_SetFromErrno(PyExc_OSError);
833 return NULL;
834 }
835
836 Py_INCREF(Py_None);
837 return Py_None;
838}
839
840static PyMethodDef pyrf_evlist__methods[] = {
841 {
842 .ml_name = "mmap",
843 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
844 .ml_flags = METH_VARARGS | METH_KEYWORDS,
845 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
846 },
847 {
848 .ml_name = "open",
849 .ml_meth = (PyCFunction)pyrf_evlist__open,
850 .ml_flags = METH_VARARGS | METH_KEYWORDS,
851 .ml_doc = PyDoc_STR("open the file descriptors.")
852 },
853 {
854 .ml_name = "poll",
855 .ml_meth = (PyCFunction)pyrf_evlist__poll,
856 .ml_flags = METH_VARARGS | METH_KEYWORDS,
857 .ml_doc = PyDoc_STR("poll the file descriptor table.")
858 },
859 {
860 .ml_name = "get_pollfd",
861 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
862 .ml_flags = METH_VARARGS | METH_KEYWORDS,
863 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
864 },
865 {
866 .ml_name = "add",
867 .ml_meth = (PyCFunction)pyrf_evlist__add,
868 .ml_flags = METH_VARARGS | METH_KEYWORDS,
869 .ml_doc = PyDoc_STR("adds an event selector to the list.")
870 },
871 {
872 .ml_name = "read_on_cpu",
873 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
874 .ml_flags = METH_VARARGS | METH_KEYWORDS,
875 .ml_doc = PyDoc_STR("reads an event.")
876 },
877 { .ml_name = NULL, }
878};
879
880static Py_ssize_t pyrf_evlist__length(PyObject *obj)
881{
882 struct pyrf_evlist *pevlist = (void *)obj;
883
884 return pevlist->evlist.nr_entries;
885}
886
887static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
888{
889 struct pyrf_evlist *pevlist = (void *)obj;
890 struct perf_evsel *pos;
891
892 if (i >= pevlist->evlist.nr_entries)
893 return NULL;
894
895 list_for_each_entry(pos, &pevlist->evlist.entries, node)
896 if (i-- == 0)
897 break;
898
899 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
900}
901
902static PySequenceMethods pyrf_evlist__sequence_methods = {
903 .sq_length = pyrf_evlist__length,
904 .sq_item = pyrf_evlist__item,
905};
906
907static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
908
909static PyTypeObject pyrf_evlist__type = {
910 PyVarObject_HEAD_INIT(NULL, 0)
911 .tp_name = "perf.evlist",
912 .tp_basicsize = sizeof(struct pyrf_evlist),
913 .tp_dealloc = (destructor)pyrf_evlist__delete,
914 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
915 .tp_as_sequence = &pyrf_evlist__sequence_methods,
916 .tp_doc = pyrf_evlist__doc,
917 .tp_methods = pyrf_evlist__methods,
918 .tp_init = (initproc)pyrf_evlist__init,
919};
920
921static int pyrf_evlist__setup_types(void)
922{
923 pyrf_evlist__type.tp_new = PyType_GenericNew;
924 return PyType_Ready(&pyrf_evlist__type);
925}
926
927static struct {
928 const char *name;
929 int value;
930} perf__constants[] = {
931 { "TYPE_HARDWARE", PERF_TYPE_HARDWARE },
932 { "TYPE_SOFTWARE", PERF_TYPE_SOFTWARE },
933 { "TYPE_TRACEPOINT", PERF_TYPE_TRACEPOINT },
934 { "TYPE_HW_CACHE", PERF_TYPE_HW_CACHE },
935 { "TYPE_RAW", PERF_TYPE_RAW },
936 { "TYPE_BREAKPOINT", PERF_TYPE_BREAKPOINT },
937
938 { "COUNT_HW_CPU_CYCLES", PERF_COUNT_HW_CPU_CYCLES },
939 { "COUNT_HW_INSTRUCTIONS", PERF_COUNT_HW_INSTRUCTIONS },
940 { "COUNT_HW_CACHE_REFERENCES", PERF_COUNT_HW_CACHE_REFERENCES },
941 { "COUNT_HW_CACHE_MISSES", PERF_COUNT_HW_CACHE_MISSES },
942 { "COUNT_HW_BRANCH_INSTRUCTIONS", PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
943 { "COUNT_HW_BRANCH_MISSES", PERF_COUNT_HW_BRANCH_MISSES },
944 { "COUNT_HW_BUS_CYCLES", PERF_COUNT_HW_BUS_CYCLES },
945 { "COUNT_HW_CACHE_L1D", PERF_COUNT_HW_CACHE_L1D },
946 { "COUNT_HW_CACHE_L1I", PERF_COUNT_HW_CACHE_L1I },
947 { "COUNT_HW_CACHE_LL", PERF_COUNT_HW_CACHE_LL },
948 { "COUNT_HW_CACHE_DTLB", PERF_COUNT_HW_CACHE_DTLB },
949 { "COUNT_HW_CACHE_ITLB", PERF_COUNT_HW_CACHE_ITLB },
950 { "COUNT_HW_CACHE_BPU", PERF_COUNT_HW_CACHE_BPU },
951 { "COUNT_HW_CACHE_OP_READ", PERF_COUNT_HW_CACHE_OP_READ },
952 { "COUNT_HW_CACHE_OP_WRITE", PERF_COUNT_HW_CACHE_OP_WRITE },
953 { "COUNT_HW_CACHE_OP_PREFETCH", PERF_COUNT_HW_CACHE_OP_PREFETCH },
954 { "COUNT_HW_CACHE_RESULT_ACCESS", PERF_COUNT_HW_CACHE_RESULT_ACCESS },
955 { "COUNT_HW_CACHE_RESULT_MISS", PERF_COUNT_HW_CACHE_RESULT_MISS },
956
957 { "COUNT_HW_STALLED_CYCLES_FRONTEND", PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
958 { "COUNT_HW_STALLED_CYCLES_BACKEND", PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
959
960 { "COUNT_SW_CPU_CLOCK", PERF_COUNT_SW_CPU_CLOCK },
961 { "COUNT_SW_TASK_CLOCK", PERF_COUNT_SW_TASK_CLOCK },
962 { "COUNT_SW_PAGE_FAULTS", PERF_COUNT_SW_PAGE_FAULTS },
963 { "COUNT_SW_CONTEXT_SWITCHES", PERF_COUNT_SW_CONTEXT_SWITCHES },
964 { "COUNT_SW_CPU_MIGRATIONS", PERF_COUNT_SW_CPU_MIGRATIONS },
965 { "COUNT_SW_PAGE_FAULTS_MIN", PERF_COUNT_SW_PAGE_FAULTS_MIN },
966 { "COUNT_SW_PAGE_FAULTS_MAJ", PERF_COUNT_SW_PAGE_FAULTS_MAJ },
967 { "COUNT_SW_ALIGNMENT_FAULTS", PERF_COUNT_SW_ALIGNMENT_FAULTS },
968 { "COUNT_SW_EMULATION_FAULTS", PERF_COUNT_SW_EMULATION_FAULTS },
969
970 { "SAMPLE_IP", PERF_SAMPLE_IP },
971 { "SAMPLE_TID", PERF_SAMPLE_TID },
972 { "SAMPLE_TIME", PERF_SAMPLE_TIME },
973 { "SAMPLE_ADDR", PERF_SAMPLE_ADDR },
974 { "SAMPLE_READ", PERF_SAMPLE_READ },
975 { "SAMPLE_CALLCHAIN", PERF_SAMPLE_CALLCHAIN },
976 { "SAMPLE_ID", PERF_SAMPLE_ID },
977 { "SAMPLE_CPU", PERF_SAMPLE_CPU },
978 { "SAMPLE_PERIOD", PERF_SAMPLE_PERIOD },
979 { "SAMPLE_STREAM_ID", PERF_SAMPLE_STREAM_ID },
980 { "SAMPLE_RAW", PERF_SAMPLE_RAW },
981
982 { "FORMAT_TOTAL_TIME_ENABLED", PERF_FORMAT_TOTAL_TIME_ENABLED },
983 { "FORMAT_TOTAL_TIME_RUNNING", PERF_FORMAT_TOTAL_TIME_RUNNING },
984 { "FORMAT_ID", PERF_FORMAT_ID },
985 { "FORMAT_GROUP", PERF_FORMAT_GROUP },
986
987 { "RECORD_MMAP", PERF_RECORD_MMAP },
988 { "RECORD_LOST", PERF_RECORD_LOST },
989 { "RECORD_COMM", PERF_RECORD_COMM },
990 { "RECORD_EXIT", PERF_RECORD_EXIT },
991 { "RECORD_THROTTLE", PERF_RECORD_THROTTLE },
992 { "RECORD_UNTHROTTLE", PERF_RECORD_UNTHROTTLE },
993 { "RECORD_FORK", PERF_RECORD_FORK },
994 { "RECORD_READ", PERF_RECORD_READ },
995 { "RECORD_SAMPLE", PERF_RECORD_SAMPLE },
996 { .name = NULL, },
997};
998
999static PyMethodDef perf__methods[] = {
1000 { .ml_name = NULL, }
1001};
1002
1003PyMODINIT_FUNC initperf(void)
1004{
1005 PyObject *obj;
1006 int i;
1007 PyObject *dict, *module = Py_InitModule("perf", perf__methods);
1008
1009 if (module == NULL ||
1010 pyrf_event__setup_types() < 0 ||
1011 pyrf_evlist__setup_types() < 0 ||
1012 pyrf_evsel__setup_types() < 0 ||
1013 pyrf_thread_map__setup_types() < 0 ||
1014 pyrf_cpu_map__setup_types() < 0)
1015 return;
1016
1017 Py_INCREF(&pyrf_evlist__type);
1018 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1019
1020 Py_INCREF(&pyrf_evsel__type);
1021 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1022
1023 Py_INCREF(&pyrf_thread_map__type);
1024 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1025
1026 Py_INCREF(&pyrf_cpu_map__type);
1027 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1028
1029 dict = PyModule_GetDict(module);
1030 if (dict == NULL)
1031 goto error;
1032
1033 for (i = 0; perf__constants[i].name != NULL; i++) {
1034 obj = PyInt_FromLong(perf__constants[i].value);
1035 if (obj == NULL)
1036 goto error;
1037 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1038 Py_DECREF(obj);
1039 }
1040
1041error:
1042 if (PyErr_Occurred())
1043 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1044}