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