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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#ifdef HAVE_LIBTRACEEVENT
9#include <traceevent/event-parse.h>
10#endif
11#include <perf/mmap.h>
12#include "evlist.h"
13#include "callchain.h"
14#include "evsel.h"
15#include "event.h"
16#include "print_binary.h"
17#include "thread_map.h"
18#include "trace-event.h"
19#include "mmap.h"
20#include "stat.h"
21#include "metricgroup.h"
22#include "util/bpf-filter.h"
23#include "util/env.h"
24#include "util/pmu.h"
25#include "util/pmus.h"
26#include <internal/lib.h>
27#include "util.h"
28
29#if PY_MAJOR_VERSION < 3
30#define _PyUnicode_FromString(arg) \
31 PyString_FromString(arg)
32#define _PyUnicode_AsString(arg) \
33 PyString_AsString(arg)
34#define _PyUnicode_FromFormat(...) \
35 PyString_FromFormat(__VA_ARGS__)
36#define _PyLong_FromLong(arg) \
37 PyInt_FromLong(arg)
38
39#else
40
41#define _PyUnicode_FromString(arg) \
42 PyUnicode_FromString(arg)
43#define _PyUnicode_FromFormat(...) \
44 PyUnicode_FromFormat(__VA_ARGS__)
45#define _PyLong_FromLong(arg) \
46 PyLong_FromLong(arg)
47#endif
48
49#ifndef Py_TYPE
50#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
51#endif
52
53/*
54 * Avoid bringing in event parsing.
55 */
56int parse_event(struct evlist *evlist __maybe_unused, const char *str __maybe_unused)
57{
58 return 0;
59}
60
61/*
62 * Provide these two so that we don't have to link against callchain.c and
63 * start dragging hist.c, etc.
64 */
65struct callchain_param callchain_param;
66
67int parse_callchain_record(const char *arg __maybe_unused,
68 struct callchain_param *param __maybe_unused)
69{
70 return 0;
71}
72
73/*
74 * Add these not to drag util/env.c
75 */
76struct perf_env perf_env;
77
78const char *perf_env__cpuid(struct perf_env *env __maybe_unused)
79{
80 return NULL;
81}
82
83// This one is a bit easier, wouldn't drag too much, but leave it as a stub we need it here
84const char *perf_env__arch(struct perf_env *env __maybe_unused)
85{
86 return NULL;
87}
88
89/*
90 * These ones are needed not to drag the PMU bandwagon, jevents generated
91 * pmu_sys_event_tables, etc and evsel__find_pmu() is used so far just for
92 * doing per PMU perf_event_attr.exclude_guest handling, not really needed, so
93 * far, for the perf python binding known usecases, revisit if this become
94 * necessary.
95 */
96struct perf_pmu *evsel__find_pmu(const struct evsel *evsel __maybe_unused)
97{
98 return NULL;
99}
100
101int perf_pmu__scan_file(const struct perf_pmu *pmu, const char *name, const char *fmt, ...)
102{
103 return EOF;
104}
105
106const char *perf_pmu__name_from_config(struct perf_pmu *pmu __maybe_unused, u64 config __maybe_unused)
107{
108 return NULL;
109}
110
111struct perf_pmu *perf_pmus__find_by_type(unsigned int type __maybe_unused)
112{
113 return NULL;
114}
115
116int perf_pmus__num_core_pmus(void)
117{
118 return 1;
119}
120
121bool evsel__is_aux_event(const struct evsel *evsel __maybe_unused)
122{
123 return false;
124}
125
126bool perf_pmus__supports_extended_type(void)
127{
128 return false;
129}
130
131/*
132 * Add this one here not to drag util/metricgroup.c
133 */
134int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
135 struct rblist *new_metric_events,
136 struct rblist *old_metric_events)
137{
138 return 0;
139}
140
141/*
142 * Add this one here not to drag util/trace-event-info.c
143 */
144char *tracepoint_id_to_name(u64 config)
145{
146 return NULL;
147}
148
149/*
150 * XXX: All these evsel destructors need some better mechanism, like a linked
151 * list of destructors registered when the relevant code indeed is used instead
152 * of having more and more calls in perf_evsel__delete(). -- acme
153 *
154 * For now, add some more:
155 *
156 * Not to drag the BPF bandwagon...
157 */
158void bpf_counter__destroy(struct evsel *evsel);
159int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd);
160int bpf_counter__disable(struct evsel *evsel);
161
162void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
163{
164}
165
166int bpf_counter__install_pe(struct evsel *evsel __maybe_unused, int cpu __maybe_unused, int fd __maybe_unused)
167{
168 return 0;
169}
170
171int bpf_counter__disable(struct evsel *evsel __maybe_unused)
172{
173 return 0;
174}
175
176// not to drag util/bpf-filter.c
177#ifdef HAVE_BPF_SKEL
178int perf_bpf_filter__prepare(struct evsel *evsel __maybe_unused)
179{
180 return 0;
181}
182
183int perf_bpf_filter__destroy(struct evsel *evsel __maybe_unused)
184{
185 return 0;
186}
187#endif
188
189/*
190 * Support debug printing even though util/debug.c is not linked. That means
191 * implementing 'verbose' and 'eprintf'.
192 */
193int verbose;
194int debug_kmaps;
195int debug_peo_args;
196
197int eprintf(int level, int var, const char *fmt, ...);
198
199int eprintf(int level, int var, const char *fmt, ...)
200{
201 va_list args;
202 int ret = 0;
203
204 if (var >= level) {
205 va_start(args, fmt);
206 ret = vfprintf(stderr, fmt, args);
207 va_end(args);
208 }
209
210 return ret;
211}
212
213/* Define PyVarObject_HEAD_INIT for python 2.5 */
214#ifndef PyVarObject_HEAD_INIT
215# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
216#endif
217
218#if PY_MAJOR_VERSION < 3
219PyMODINIT_FUNC initperf(void);
220#else
221PyMODINIT_FUNC PyInit_perf(void);
222#endif
223
224#define member_def(type, member, ptype, help) \
225 { #member, ptype, \
226 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
227 0, help }
228
229#define sample_member_def(name, member, ptype, help) \
230 { #name, ptype, \
231 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
232 0, help }
233
234struct pyrf_event {
235 PyObject_HEAD
236 struct evsel *evsel;
237 struct perf_sample sample;
238 union perf_event event;
239};
240
241#define sample_members \
242 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
243 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
244 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
245 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
246 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
247 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
248 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
249 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
250 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
251
252static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
253
254static PyMemberDef pyrf_mmap_event__members[] = {
255 sample_members
256 member_def(perf_event_header, type, T_UINT, "event type"),
257 member_def(perf_event_header, misc, T_UINT, "event misc"),
258 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
259 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
260 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
261 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
262 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
263 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
264 { .name = NULL, },
265};
266
267static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
268{
269 PyObject *ret;
270 char *s;
271
272 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
273 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
274 "filename: %s }",
275 pevent->event.mmap.pid, pevent->event.mmap.tid,
276 pevent->event.mmap.start, pevent->event.mmap.len,
277 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
278 ret = PyErr_NoMemory();
279 } else {
280 ret = _PyUnicode_FromString(s);
281 free(s);
282 }
283 return ret;
284}
285
286static PyTypeObject pyrf_mmap_event__type = {
287 PyVarObject_HEAD_INIT(NULL, 0)
288 .tp_name = "perf.mmap_event",
289 .tp_basicsize = sizeof(struct pyrf_event),
290 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
291 .tp_doc = pyrf_mmap_event__doc,
292 .tp_members = pyrf_mmap_event__members,
293 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
294};
295
296static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
297
298static PyMemberDef pyrf_task_event__members[] = {
299 sample_members
300 member_def(perf_event_header, type, T_UINT, "event type"),
301 member_def(perf_record_fork, pid, T_UINT, "event pid"),
302 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
303 member_def(perf_record_fork, tid, T_UINT, "event tid"),
304 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
305 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
306 { .name = NULL, },
307};
308
309static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
310{
311 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
312 "ptid: %u, time: %" PRI_lu64 "}",
313 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
314 pevent->event.fork.pid,
315 pevent->event.fork.ppid,
316 pevent->event.fork.tid,
317 pevent->event.fork.ptid,
318 pevent->event.fork.time);
319}
320
321static PyTypeObject pyrf_task_event__type = {
322 PyVarObject_HEAD_INIT(NULL, 0)
323 .tp_name = "perf.task_event",
324 .tp_basicsize = sizeof(struct pyrf_event),
325 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
326 .tp_doc = pyrf_task_event__doc,
327 .tp_members = pyrf_task_event__members,
328 .tp_repr = (reprfunc)pyrf_task_event__repr,
329};
330
331static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
332
333static PyMemberDef pyrf_comm_event__members[] = {
334 sample_members
335 member_def(perf_event_header, type, T_UINT, "event type"),
336 member_def(perf_record_comm, pid, T_UINT, "event pid"),
337 member_def(perf_record_comm, tid, T_UINT, "event tid"),
338 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
339 { .name = NULL, },
340};
341
342static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
343{
344 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
345 pevent->event.comm.pid,
346 pevent->event.comm.tid,
347 pevent->event.comm.comm);
348}
349
350static PyTypeObject pyrf_comm_event__type = {
351 PyVarObject_HEAD_INIT(NULL, 0)
352 .tp_name = "perf.comm_event",
353 .tp_basicsize = sizeof(struct pyrf_event),
354 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
355 .tp_doc = pyrf_comm_event__doc,
356 .tp_members = pyrf_comm_event__members,
357 .tp_repr = (reprfunc)pyrf_comm_event__repr,
358};
359
360static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
361
362static PyMemberDef pyrf_throttle_event__members[] = {
363 sample_members
364 member_def(perf_event_header, type, T_UINT, "event type"),
365 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
366 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
367 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
368 { .name = NULL, },
369};
370
371static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
372{
373 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
374
375 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
376 ", stream_id: %" PRI_lu64 " }",
377 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
378 te->time, te->id, te->stream_id);
379}
380
381static PyTypeObject pyrf_throttle_event__type = {
382 PyVarObject_HEAD_INIT(NULL, 0)
383 .tp_name = "perf.throttle_event",
384 .tp_basicsize = sizeof(struct pyrf_event),
385 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
386 .tp_doc = pyrf_throttle_event__doc,
387 .tp_members = pyrf_throttle_event__members,
388 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
389};
390
391static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
392
393static PyMemberDef pyrf_lost_event__members[] = {
394 sample_members
395 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
396 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
397 { .name = NULL, },
398};
399
400static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
401{
402 PyObject *ret;
403 char *s;
404
405 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
406 "lost: %#" PRI_lx64 " }",
407 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
408 ret = PyErr_NoMemory();
409 } else {
410 ret = _PyUnicode_FromString(s);
411 free(s);
412 }
413 return ret;
414}
415
416static PyTypeObject pyrf_lost_event__type = {
417 PyVarObject_HEAD_INIT(NULL, 0)
418 .tp_name = "perf.lost_event",
419 .tp_basicsize = sizeof(struct pyrf_event),
420 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
421 .tp_doc = pyrf_lost_event__doc,
422 .tp_members = pyrf_lost_event__members,
423 .tp_repr = (reprfunc)pyrf_lost_event__repr,
424};
425
426static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
427
428static PyMemberDef pyrf_read_event__members[] = {
429 sample_members
430 member_def(perf_record_read, pid, T_UINT, "event pid"),
431 member_def(perf_record_read, tid, T_UINT, "event tid"),
432 { .name = NULL, },
433};
434
435static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
436{
437 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
438 pevent->event.read.pid,
439 pevent->event.read.tid);
440 /*
441 * FIXME: return the array of read values,
442 * making this method useful ;-)
443 */
444}
445
446static PyTypeObject pyrf_read_event__type = {
447 PyVarObject_HEAD_INIT(NULL, 0)
448 .tp_name = "perf.read_event",
449 .tp_basicsize = sizeof(struct pyrf_event),
450 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
451 .tp_doc = pyrf_read_event__doc,
452 .tp_members = pyrf_read_event__members,
453 .tp_repr = (reprfunc)pyrf_read_event__repr,
454};
455
456static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
457
458static PyMemberDef pyrf_sample_event__members[] = {
459 sample_members
460 member_def(perf_event_header, type, T_UINT, "event type"),
461 { .name = NULL, },
462};
463
464static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
465{
466 PyObject *ret;
467 char *s;
468
469 if (asprintf(&s, "{ type: sample }") < 0) {
470 ret = PyErr_NoMemory();
471 } else {
472 ret = _PyUnicode_FromString(s);
473 free(s);
474 }
475 return ret;
476}
477
478#ifdef HAVE_LIBTRACEEVENT
479static bool is_tracepoint(struct pyrf_event *pevent)
480{
481 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
482}
483
484static PyObject*
485tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
486{
487 struct tep_handle *pevent = field->event->tep;
488 void *data = pe->sample.raw_data;
489 PyObject *ret = NULL;
490 unsigned long long val;
491 unsigned int offset, len;
492
493 if (field->flags & TEP_FIELD_IS_ARRAY) {
494 offset = field->offset;
495 len = field->size;
496 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
497 val = tep_read_number(pevent, data + offset, len);
498 offset = val;
499 len = offset >> 16;
500 offset &= 0xffff;
501 if (tep_field_is_relative(field->flags))
502 offset += field->offset + field->size;
503 }
504 if (field->flags & TEP_FIELD_IS_STRING &&
505 is_printable_array(data + offset, len)) {
506 ret = _PyUnicode_FromString((char *)data + offset);
507 } else {
508 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
509 field->flags &= ~TEP_FIELD_IS_STRING;
510 }
511 } else {
512 val = tep_read_number(pevent, data + field->offset,
513 field->size);
514 if (field->flags & TEP_FIELD_IS_POINTER)
515 ret = PyLong_FromUnsignedLong((unsigned long) val);
516 else if (field->flags & TEP_FIELD_IS_SIGNED)
517 ret = PyLong_FromLong((long) val);
518 else
519 ret = PyLong_FromUnsignedLong((unsigned long) val);
520 }
521
522 return ret;
523}
524
525static PyObject*
526get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
527{
528 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
529 struct evsel *evsel = pevent->evsel;
530 struct tep_format_field *field;
531
532 if (!evsel->tp_format) {
533 struct tep_event *tp_format;
534
535 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
536 if (IS_ERR_OR_NULL(tp_format))
537 return NULL;
538
539 evsel->tp_format = tp_format;
540 }
541
542 field = tep_find_any_field(evsel->tp_format, str);
543 if (!field)
544 return NULL;
545
546 return tracepoint_field(pevent, field);
547}
548#endif /* HAVE_LIBTRACEEVENT */
549
550static PyObject*
551pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
552{
553 PyObject *obj = NULL;
554
555#ifdef HAVE_LIBTRACEEVENT
556 if (is_tracepoint(pevent))
557 obj = get_tracepoint_field(pevent, attr_name);
558#endif
559
560 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
561}
562
563static PyTypeObject pyrf_sample_event__type = {
564 PyVarObject_HEAD_INIT(NULL, 0)
565 .tp_name = "perf.sample_event",
566 .tp_basicsize = sizeof(struct pyrf_event),
567 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
568 .tp_doc = pyrf_sample_event__doc,
569 .tp_members = pyrf_sample_event__members,
570 .tp_repr = (reprfunc)pyrf_sample_event__repr,
571 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
572};
573
574static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
575
576static PyMemberDef pyrf_context_switch_event__members[] = {
577 sample_members
578 member_def(perf_event_header, type, T_UINT, "event type"),
579 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
580 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
581 { .name = NULL, },
582};
583
584static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
585{
586 PyObject *ret;
587 char *s;
588
589 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
590 pevent->event.context_switch.next_prev_pid,
591 pevent->event.context_switch.next_prev_tid,
592 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
593 ret = PyErr_NoMemory();
594 } else {
595 ret = _PyUnicode_FromString(s);
596 free(s);
597 }
598 return ret;
599}
600
601static PyTypeObject pyrf_context_switch_event__type = {
602 PyVarObject_HEAD_INIT(NULL, 0)
603 .tp_name = "perf.context_switch_event",
604 .tp_basicsize = sizeof(struct pyrf_event),
605 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
606 .tp_doc = pyrf_context_switch_event__doc,
607 .tp_members = pyrf_context_switch_event__members,
608 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
609};
610
611static int pyrf_event__setup_types(void)
612{
613 int err;
614 pyrf_mmap_event__type.tp_new =
615 pyrf_task_event__type.tp_new =
616 pyrf_comm_event__type.tp_new =
617 pyrf_lost_event__type.tp_new =
618 pyrf_read_event__type.tp_new =
619 pyrf_sample_event__type.tp_new =
620 pyrf_context_switch_event__type.tp_new =
621 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
622 err = PyType_Ready(&pyrf_mmap_event__type);
623 if (err < 0)
624 goto out;
625 err = PyType_Ready(&pyrf_lost_event__type);
626 if (err < 0)
627 goto out;
628 err = PyType_Ready(&pyrf_task_event__type);
629 if (err < 0)
630 goto out;
631 err = PyType_Ready(&pyrf_comm_event__type);
632 if (err < 0)
633 goto out;
634 err = PyType_Ready(&pyrf_throttle_event__type);
635 if (err < 0)
636 goto out;
637 err = PyType_Ready(&pyrf_read_event__type);
638 if (err < 0)
639 goto out;
640 err = PyType_Ready(&pyrf_sample_event__type);
641 if (err < 0)
642 goto out;
643 err = PyType_Ready(&pyrf_context_switch_event__type);
644 if (err < 0)
645 goto out;
646out:
647 return err;
648}
649
650static PyTypeObject *pyrf_event__type[] = {
651 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
652 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
653 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
654 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
655 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
656 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
657 [PERF_RECORD_FORK] = &pyrf_task_event__type,
658 [PERF_RECORD_READ] = &pyrf_read_event__type,
659 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
660 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
661 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
662};
663
664static PyObject *pyrf_event__new(union perf_event *event)
665{
666 struct pyrf_event *pevent;
667 PyTypeObject *ptype;
668
669 if ((event->header.type < PERF_RECORD_MMAP ||
670 event->header.type > PERF_RECORD_SAMPLE) &&
671 !(event->header.type == PERF_RECORD_SWITCH ||
672 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
673 return NULL;
674
675 ptype = pyrf_event__type[event->header.type];
676 pevent = PyObject_New(struct pyrf_event, ptype);
677 if (pevent != NULL)
678 memcpy(&pevent->event, event, event->header.size);
679 return (PyObject *)pevent;
680}
681
682struct pyrf_cpu_map {
683 PyObject_HEAD
684
685 struct perf_cpu_map *cpus;
686};
687
688static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
689 PyObject *args, PyObject *kwargs)
690{
691 static char *kwlist[] = { "cpustr", NULL };
692 char *cpustr = NULL;
693
694 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
695 kwlist, &cpustr))
696 return -1;
697
698 pcpus->cpus = perf_cpu_map__new(cpustr);
699 if (pcpus->cpus == NULL)
700 return -1;
701 return 0;
702}
703
704static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
705{
706 perf_cpu_map__put(pcpus->cpus);
707 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
708}
709
710static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
711{
712 struct pyrf_cpu_map *pcpus = (void *)obj;
713
714 return perf_cpu_map__nr(pcpus->cpus);
715}
716
717static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
718{
719 struct pyrf_cpu_map *pcpus = (void *)obj;
720
721 if (i >= perf_cpu_map__nr(pcpus->cpus))
722 return NULL;
723
724 return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
725}
726
727static PySequenceMethods pyrf_cpu_map__sequence_methods = {
728 .sq_length = pyrf_cpu_map__length,
729 .sq_item = pyrf_cpu_map__item,
730};
731
732static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
733
734static PyTypeObject pyrf_cpu_map__type = {
735 PyVarObject_HEAD_INIT(NULL, 0)
736 .tp_name = "perf.cpu_map",
737 .tp_basicsize = sizeof(struct pyrf_cpu_map),
738 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
739 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
740 .tp_doc = pyrf_cpu_map__doc,
741 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
742 .tp_init = (initproc)pyrf_cpu_map__init,
743};
744
745static int pyrf_cpu_map__setup_types(void)
746{
747 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
748 return PyType_Ready(&pyrf_cpu_map__type);
749}
750
751struct pyrf_thread_map {
752 PyObject_HEAD
753
754 struct perf_thread_map *threads;
755};
756
757static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
758 PyObject *args, PyObject *kwargs)
759{
760 static char *kwlist[] = { "pid", "tid", "uid", NULL };
761 int pid = -1, tid = -1, uid = UINT_MAX;
762
763 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
764 kwlist, &pid, &tid, &uid))
765 return -1;
766
767 pthreads->threads = thread_map__new(pid, tid, uid);
768 if (pthreads->threads == NULL)
769 return -1;
770 return 0;
771}
772
773static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
774{
775 perf_thread_map__put(pthreads->threads);
776 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
777}
778
779static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
780{
781 struct pyrf_thread_map *pthreads = (void *)obj;
782
783 return perf_thread_map__nr(pthreads->threads);
784}
785
786static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
787{
788 struct pyrf_thread_map *pthreads = (void *)obj;
789
790 if (i >= perf_thread_map__nr(pthreads->threads))
791 return NULL;
792
793 return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
794}
795
796static PySequenceMethods pyrf_thread_map__sequence_methods = {
797 .sq_length = pyrf_thread_map__length,
798 .sq_item = pyrf_thread_map__item,
799};
800
801static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
802
803static PyTypeObject pyrf_thread_map__type = {
804 PyVarObject_HEAD_INIT(NULL, 0)
805 .tp_name = "perf.thread_map",
806 .tp_basicsize = sizeof(struct pyrf_thread_map),
807 .tp_dealloc = (destructor)pyrf_thread_map__delete,
808 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
809 .tp_doc = pyrf_thread_map__doc,
810 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
811 .tp_init = (initproc)pyrf_thread_map__init,
812};
813
814static int pyrf_thread_map__setup_types(void)
815{
816 pyrf_thread_map__type.tp_new = PyType_GenericNew;
817 return PyType_Ready(&pyrf_thread_map__type);
818}
819
820struct pyrf_evsel {
821 PyObject_HEAD
822
823 struct evsel evsel;
824};
825
826static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
827 PyObject *args, PyObject *kwargs)
828{
829 struct perf_event_attr attr = {
830 .type = PERF_TYPE_HARDWARE,
831 .config = PERF_COUNT_HW_CPU_CYCLES,
832 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
833 };
834 static char *kwlist[] = {
835 "type",
836 "config",
837 "sample_freq",
838 "sample_period",
839 "sample_type",
840 "read_format",
841 "disabled",
842 "inherit",
843 "pinned",
844 "exclusive",
845 "exclude_user",
846 "exclude_kernel",
847 "exclude_hv",
848 "exclude_idle",
849 "mmap",
850 "context_switch",
851 "comm",
852 "freq",
853 "inherit_stat",
854 "enable_on_exec",
855 "task",
856 "watermark",
857 "precise_ip",
858 "mmap_data",
859 "sample_id_all",
860 "wakeup_events",
861 "bp_type",
862 "bp_addr",
863 "bp_len",
864 NULL
865 };
866 u64 sample_period = 0;
867 u32 disabled = 0,
868 inherit = 0,
869 pinned = 0,
870 exclusive = 0,
871 exclude_user = 0,
872 exclude_kernel = 0,
873 exclude_hv = 0,
874 exclude_idle = 0,
875 mmap = 0,
876 context_switch = 0,
877 comm = 0,
878 freq = 1,
879 inherit_stat = 0,
880 enable_on_exec = 0,
881 task = 0,
882 watermark = 0,
883 precise_ip = 0,
884 mmap_data = 0,
885 sample_id_all = 1;
886 int idx = 0;
887
888 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
889 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
890 &attr.type, &attr.config, &attr.sample_freq,
891 &sample_period, &attr.sample_type,
892 &attr.read_format, &disabled, &inherit,
893 &pinned, &exclusive, &exclude_user,
894 &exclude_kernel, &exclude_hv, &exclude_idle,
895 &mmap, &context_switch, &comm, &freq, &inherit_stat,
896 &enable_on_exec, &task, &watermark,
897 &precise_ip, &mmap_data, &sample_id_all,
898 &attr.wakeup_events, &attr.bp_type,
899 &attr.bp_addr, &attr.bp_len, &idx))
900 return -1;
901
902 /* union... */
903 if (sample_period != 0) {
904 if (attr.sample_freq != 0)
905 return -1; /* FIXME: throw right exception */
906 attr.sample_period = sample_period;
907 }
908
909 /* Bitfields */
910 attr.disabled = disabled;
911 attr.inherit = inherit;
912 attr.pinned = pinned;
913 attr.exclusive = exclusive;
914 attr.exclude_user = exclude_user;
915 attr.exclude_kernel = exclude_kernel;
916 attr.exclude_hv = exclude_hv;
917 attr.exclude_idle = exclude_idle;
918 attr.mmap = mmap;
919 attr.context_switch = context_switch;
920 attr.comm = comm;
921 attr.freq = freq;
922 attr.inherit_stat = inherit_stat;
923 attr.enable_on_exec = enable_on_exec;
924 attr.task = task;
925 attr.watermark = watermark;
926 attr.precise_ip = precise_ip;
927 attr.mmap_data = mmap_data;
928 attr.sample_id_all = sample_id_all;
929 attr.size = sizeof(attr);
930
931 evsel__init(&pevsel->evsel, &attr, idx);
932 return 0;
933}
934
935static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
936{
937 evsel__exit(&pevsel->evsel);
938 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
939}
940
941static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
942 PyObject *args, PyObject *kwargs)
943{
944 struct evsel *evsel = &pevsel->evsel;
945 struct perf_cpu_map *cpus = NULL;
946 struct perf_thread_map *threads = NULL;
947 PyObject *pcpus = NULL, *pthreads = NULL;
948 int group = 0, inherit = 0;
949 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
950
951 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
952 &pcpus, &pthreads, &group, &inherit))
953 return NULL;
954
955 if (pthreads != NULL)
956 threads = ((struct pyrf_thread_map *)pthreads)->threads;
957
958 if (pcpus != NULL)
959 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
960
961 evsel->core.attr.inherit = inherit;
962 /*
963 * This will group just the fds for this single evsel, to group
964 * multiple events, use evlist.open().
965 */
966 if (evsel__open(evsel, cpus, threads) < 0) {
967 PyErr_SetFromErrno(PyExc_OSError);
968 return NULL;
969 }
970
971 Py_INCREF(Py_None);
972 return Py_None;
973}
974
975static PyMethodDef pyrf_evsel__methods[] = {
976 {
977 .ml_name = "open",
978 .ml_meth = (PyCFunction)pyrf_evsel__open,
979 .ml_flags = METH_VARARGS | METH_KEYWORDS,
980 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
981 },
982 { .ml_name = NULL, }
983};
984
985static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
986
987static PyTypeObject pyrf_evsel__type = {
988 PyVarObject_HEAD_INIT(NULL, 0)
989 .tp_name = "perf.evsel",
990 .tp_basicsize = sizeof(struct pyrf_evsel),
991 .tp_dealloc = (destructor)pyrf_evsel__delete,
992 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
993 .tp_doc = pyrf_evsel__doc,
994 .tp_methods = pyrf_evsel__methods,
995 .tp_init = (initproc)pyrf_evsel__init,
996};
997
998static int pyrf_evsel__setup_types(void)
999{
1000 pyrf_evsel__type.tp_new = PyType_GenericNew;
1001 return PyType_Ready(&pyrf_evsel__type);
1002}
1003
1004struct pyrf_evlist {
1005 PyObject_HEAD
1006
1007 struct evlist evlist;
1008};
1009
1010static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
1011 PyObject *args, PyObject *kwargs __maybe_unused)
1012{
1013 PyObject *pcpus = NULL, *pthreads = NULL;
1014 struct perf_cpu_map *cpus;
1015 struct perf_thread_map *threads;
1016
1017 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
1018 return -1;
1019
1020 threads = ((struct pyrf_thread_map *)pthreads)->threads;
1021 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
1022 evlist__init(&pevlist->evlist, cpus, threads);
1023 return 0;
1024}
1025
1026static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
1027{
1028 evlist__exit(&pevlist->evlist);
1029 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
1030}
1031
1032static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
1033 PyObject *args, PyObject *kwargs)
1034{
1035 struct evlist *evlist = &pevlist->evlist;
1036 static char *kwlist[] = { "pages", "overwrite", NULL };
1037 int pages = 128, overwrite = false;
1038
1039 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
1040 &pages, &overwrite))
1041 return NULL;
1042
1043 if (evlist__mmap(evlist, pages) < 0) {
1044 PyErr_SetFromErrno(PyExc_OSError);
1045 return NULL;
1046 }
1047
1048 Py_INCREF(Py_None);
1049 return Py_None;
1050}
1051
1052static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
1053 PyObject *args, PyObject *kwargs)
1054{
1055 struct evlist *evlist = &pevlist->evlist;
1056 static char *kwlist[] = { "timeout", NULL };
1057 int timeout = -1, n;
1058
1059 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
1060 return NULL;
1061
1062 n = evlist__poll(evlist, timeout);
1063 if (n < 0) {
1064 PyErr_SetFromErrno(PyExc_OSError);
1065 return NULL;
1066 }
1067
1068 return Py_BuildValue("i", n);
1069}
1070
1071static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
1072 PyObject *args __maybe_unused,
1073 PyObject *kwargs __maybe_unused)
1074{
1075 struct evlist *evlist = &pevlist->evlist;
1076 PyObject *list = PyList_New(0);
1077 int i;
1078
1079 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
1080 PyObject *file;
1081#if PY_MAJOR_VERSION < 3
1082 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
1083
1084 if (fp == NULL)
1085 goto free_list;
1086
1087 file = PyFile_FromFile(fp, "perf", "r", NULL);
1088#else
1089 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
1090 NULL, NULL, NULL, 0);
1091#endif
1092 if (file == NULL)
1093 goto free_list;
1094
1095 if (PyList_Append(list, file) != 0) {
1096 Py_DECREF(file);
1097 goto free_list;
1098 }
1099
1100 Py_DECREF(file);
1101 }
1102
1103 return list;
1104free_list:
1105 return PyErr_NoMemory();
1106}
1107
1108
1109static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
1110 PyObject *args,
1111 PyObject *kwargs __maybe_unused)
1112{
1113 struct evlist *evlist = &pevlist->evlist;
1114 PyObject *pevsel;
1115 struct evsel *evsel;
1116
1117 if (!PyArg_ParseTuple(args, "O", &pevsel))
1118 return NULL;
1119
1120 Py_INCREF(pevsel);
1121 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
1122 evsel->core.idx = evlist->core.nr_entries;
1123 evlist__add(evlist, evsel);
1124
1125 return Py_BuildValue("i", evlist->core.nr_entries);
1126}
1127
1128static struct mmap *get_md(struct evlist *evlist, int cpu)
1129{
1130 int i;
1131
1132 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1133 struct mmap *md = &evlist->mmap[i];
1134
1135 if (md->core.cpu.cpu == cpu)
1136 return md;
1137 }
1138
1139 return NULL;
1140}
1141
1142static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1143 PyObject *args, PyObject *kwargs)
1144{
1145 struct evlist *evlist = &pevlist->evlist;
1146 union perf_event *event;
1147 int sample_id_all = 1, cpu;
1148 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1149 struct mmap *md;
1150 int err;
1151
1152 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1153 &cpu, &sample_id_all))
1154 return NULL;
1155
1156 md = get_md(evlist, cpu);
1157 if (!md)
1158 return NULL;
1159
1160 if (perf_mmap__read_init(&md->core) < 0)
1161 goto end;
1162
1163 event = perf_mmap__read_event(&md->core);
1164 if (event != NULL) {
1165 PyObject *pyevent = pyrf_event__new(event);
1166 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1167 struct evsel *evsel;
1168
1169 if (pyevent == NULL)
1170 return PyErr_NoMemory();
1171
1172 evsel = evlist__event2evsel(evlist, event);
1173 if (!evsel) {
1174 Py_INCREF(Py_None);
1175 return Py_None;
1176 }
1177
1178 pevent->evsel = evsel;
1179
1180 err = evsel__parse_sample(evsel, event, &pevent->sample);
1181
1182 /* Consume the even only after we parsed it out. */
1183 perf_mmap__consume(&md->core);
1184
1185 if (err)
1186 return PyErr_Format(PyExc_OSError,
1187 "perf: can't parse sample, err=%d", err);
1188 return pyevent;
1189 }
1190end:
1191 Py_INCREF(Py_None);
1192 return Py_None;
1193}
1194
1195static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1196 PyObject *args, PyObject *kwargs)
1197{
1198 struct evlist *evlist = &pevlist->evlist;
1199
1200 if (evlist__open(evlist) < 0) {
1201 PyErr_SetFromErrno(PyExc_OSError);
1202 return NULL;
1203 }
1204
1205 Py_INCREF(Py_None);
1206 return Py_None;
1207}
1208
1209static PyMethodDef pyrf_evlist__methods[] = {
1210 {
1211 .ml_name = "mmap",
1212 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1213 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1214 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1215 },
1216 {
1217 .ml_name = "open",
1218 .ml_meth = (PyCFunction)pyrf_evlist__open,
1219 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1220 .ml_doc = PyDoc_STR("open the file descriptors.")
1221 },
1222 {
1223 .ml_name = "poll",
1224 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1225 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1226 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1227 },
1228 {
1229 .ml_name = "get_pollfd",
1230 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1231 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1232 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1233 },
1234 {
1235 .ml_name = "add",
1236 .ml_meth = (PyCFunction)pyrf_evlist__add,
1237 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1238 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1239 },
1240 {
1241 .ml_name = "read_on_cpu",
1242 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1243 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1244 .ml_doc = PyDoc_STR("reads an event.")
1245 },
1246 { .ml_name = NULL, }
1247};
1248
1249static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1250{
1251 struct pyrf_evlist *pevlist = (void *)obj;
1252
1253 return pevlist->evlist.core.nr_entries;
1254}
1255
1256static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1257{
1258 struct pyrf_evlist *pevlist = (void *)obj;
1259 struct evsel *pos;
1260
1261 if (i >= pevlist->evlist.core.nr_entries)
1262 return NULL;
1263
1264 evlist__for_each_entry(&pevlist->evlist, pos) {
1265 if (i-- == 0)
1266 break;
1267 }
1268
1269 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1270}
1271
1272static PySequenceMethods pyrf_evlist__sequence_methods = {
1273 .sq_length = pyrf_evlist__length,
1274 .sq_item = pyrf_evlist__item,
1275};
1276
1277static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1278
1279static PyTypeObject pyrf_evlist__type = {
1280 PyVarObject_HEAD_INIT(NULL, 0)
1281 .tp_name = "perf.evlist",
1282 .tp_basicsize = sizeof(struct pyrf_evlist),
1283 .tp_dealloc = (destructor)pyrf_evlist__delete,
1284 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1285 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1286 .tp_doc = pyrf_evlist__doc,
1287 .tp_methods = pyrf_evlist__methods,
1288 .tp_init = (initproc)pyrf_evlist__init,
1289};
1290
1291static int pyrf_evlist__setup_types(void)
1292{
1293 pyrf_evlist__type.tp_new = PyType_GenericNew;
1294 return PyType_Ready(&pyrf_evlist__type);
1295}
1296
1297#define PERF_CONST(name) { #name, PERF_##name }
1298
1299static struct {
1300 const char *name;
1301 int value;
1302} perf__constants[] = {
1303 PERF_CONST(TYPE_HARDWARE),
1304 PERF_CONST(TYPE_SOFTWARE),
1305 PERF_CONST(TYPE_TRACEPOINT),
1306 PERF_CONST(TYPE_HW_CACHE),
1307 PERF_CONST(TYPE_RAW),
1308 PERF_CONST(TYPE_BREAKPOINT),
1309
1310 PERF_CONST(COUNT_HW_CPU_CYCLES),
1311 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1312 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1313 PERF_CONST(COUNT_HW_CACHE_MISSES),
1314 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1315 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1316 PERF_CONST(COUNT_HW_BUS_CYCLES),
1317 PERF_CONST(COUNT_HW_CACHE_L1D),
1318 PERF_CONST(COUNT_HW_CACHE_L1I),
1319 PERF_CONST(COUNT_HW_CACHE_LL),
1320 PERF_CONST(COUNT_HW_CACHE_DTLB),
1321 PERF_CONST(COUNT_HW_CACHE_ITLB),
1322 PERF_CONST(COUNT_HW_CACHE_BPU),
1323 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1324 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1325 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1326 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1327 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1328
1329 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1330 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1331
1332 PERF_CONST(COUNT_SW_CPU_CLOCK),
1333 PERF_CONST(COUNT_SW_TASK_CLOCK),
1334 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1335 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1336 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1337 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1338 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1339 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1340 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1341 PERF_CONST(COUNT_SW_DUMMY),
1342
1343 PERF_CONST(SAMPLE_IP),
1344 PERF_CONST(SAMPLE_TID),
1345 PERF_CONST(SAMPLE_TIME),
1346 PERF_CONST(SAMPLE_ADDR),
1347 PERF_CONST(SAMPLE_READ),
1348 PERF_CONST(SAMPLE_CALLCHAIN),
1349 PERF_CONST(SAMPLE_ID),
1350 PERF_CONST(SAMPLE_CPU),
1351 PERF_CONST(SAMPLE_PERIOD),
1352 PERF_CONST(SAMPLE_STREAM_ID),
1353 PERF_CONST(SAMPLE_RAW),
1354
1355 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1356 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1357 PERF_CONST(FORMAT_ID),
1358 PERF_CONST(FORMAT_GROUP),
1359
1360 PERF_CONST(RECORD_MMAP),
1361 PERF_CONST(RECORD_LOST),
1362 PERF_CONST(RECORD_COMM),
1363 PERF_CONST(RECORD_EXIT),
1364 PERF_CONST(RECORD_THROTTLE),
1365 PERF_CONST(RECORD_UNTHROTTLE),
1366 PERF_CONST(RECORD_FORK),
1367 PERF_CONST(RECORD_READ),
1368 PERF_CONST(RECORD_SAMPLE),
1369 PERF_CONST(RECORD_MMAP2),
1370 PERF_CONST(RECORD_AUX),
1371 PERF_CONST(RECORD_ITRACE_START),
1372 PERF_CONST(RECORD_LOST_SAMPLES),
1373 PERF_CONST(RECORD_SWITCH),
1374 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1375
1376 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1377 { .name = NULL, },
1378};
1379
1380static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1381 PyObject *args, PyObject *kwargs)
1382{
1383#ifndef HAVE_LIBTRACEEVENT
1384 return NULL;
1385#else
1386 struct tep_event *tp_format;
1387 static char *kwlist[] = { "sys", "name", NULL };
1388 char *sys = NULL;
1389 char *name = NULL;
1390
1391 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1392 &sys, &name))
1393 return NULL;
1394
1395 tp_format = trace_event__tp_format(sys, name);
1396 if (IS_ERR(tp_format))
1397 return _PyLong_FromLong(-1);
1398
1399 return _PyLong_FromLong(tp_format->id);
1400#endif // HAVE_LIBTRACEEVENT
1401}
1402
1403static PyMethodDef perf__methods[] = {
1404 {
1405 .ml_name = "tracepoint",
1406 .ml_meth = (PyCFunction) pyrf__tracepoint,
1407 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1408 .ml_doc = PyDoc_STR("Get tracepoint config.")
1409 },
1410 { .ml_name = NULL, }
1411};
1412
1413#if PY_MAJOR_VERSION < 3
1414PyMODINIT_FUNC initperf(void)
1415#else
1416PyMODINIT_FUNC PyInit_perf(void)
1417#endif
1418{
1419 PyObject *obj;
1420 int i;
1421 PyObject *dict;
1422#if PY_MAJOR_VERSION < 3
1423 PyObject *module = Py_InitModule("perf", perf__methods);
1424#else
1425 static struct PyModuleDef moduledef = {
1426 PyModuleDef_HEAD_INIT,
1427 "perf", /* m_name */
1428 "", /* m_doc */
1429 -1, /* m_size */
1430 perf__methods, /* m_methods */
1431 NULL, /* m_reload */
1432 NULL, /* m_traverse */
1433 NULL, /* m_clear */
1434 NULL, /* m_free */
1435 };
1436 PyObject *module = PyModule_Create(&moduledef);
1437#endif
1438
1439 if (module == NULL ||
1440 pyrf_event__setup_types() < 0 ||
1441 pyrf_evlist__setup_types() < 0 ||
1442 pyrf_evsel__setup_types() < 0 ||
1443 pyrf_thread_map__setup_types() < 0 ||
1444 pyrf_cpu_map__setup_types() < 0)
1445#if PY_MAJOR_VERSION < 3
1446 return;
1447#else
1448 return module;
1449#endif
1450
1451 /* The page_size is placed in util object. */
1452 page_size = sysconf(_SC_PAGE_SIZE);
1453
1454 Py_INCREF(&pyrf_evlist__type);
1455 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1456
1457 Py_INCREF(&pyrf_evsel__type);
1458 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1459
1460 Py_INCREF(&pyrf_mmap_event__type);
1461 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1462
1463 Py_INCREF(&pyrf_lost_event__type);
1464 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1465
1466 Py_INCREF(&pyrf_comm_event__type);
1467 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1468
1469 Py_INCREF(&pyrf_task_event__type);
1470 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1471
1472 Py_INCREF(&pyrf_throttle_event__type);
1473 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1474
1475 Py_INCREF(&pyrf_task_event__type);
1476 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1477
1478 Py_INCREF(&pyrf_read_event__type);
1479 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1480
1481 Py_INCREF(&pyrf_sample_event__type);
1482 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1483
1484 Py_INCREF(&pyrf_context_switch_event__type);
1485 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1486
1487 Py_INCREF(&pyrf_thread_map__type);
1488 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1489
1490 Py_INCREF(&pyrf_cpu_map__type);
1491 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1492
1493 dict = PyModule_GetDict(module);
1494 if (dict == NULL)
1495 goto error;
1496
1497 for (i = 0; perf__constants[i].name != NULL; i++) {
1498 obj = _PyLong_FromLong(perf__constants[i].value);
1499 if (obj == NULL)
1500 goto error;
1501 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1502 Py_DECREF(obj);
1503 }
1504
1505error:
1506 if (PyErr_Occurred())
1507 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1508#if PY_MAJOR_VERSION >= 3
1509 return module;
1510#endif
1511}
1512
1513/*
1514 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1515 * binding.
1516 */
1517void test_attr__open(struct perf_event_attr *attr, pid_t pid, struct perf_cpu cpu,
1518 int fd, int group_fd, unsigned long flags)
1519{
1520}
1521
1522void evlist__free_stats(struct evlist *evlist)
1523{
1524}