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
13
14
15int verbose;
16
17int eprintf(int level, int var, const char *fmt, ...)
18{
19 va_list args;
20 int ret = 0;
21
22 if (var >= level) {
23 va_start(args, fmt);
24 ret = vfprintf(stderr, fmt, args);
25 va_end(args);
26 }
27
28 return ret;
29}
30
31
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(perf_event_header, misc, T_UINT, "event misc"),
71 member_def(mmap_event, pid, T_UINT, "event pid"),
72 member_def(mmap_event, tid, T_UINT, "event tid"),
73 member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
74 member_def(mmap_event, len, T_ULONGLONG, "map length"),
75 member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
76 member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
77 { .name = NULL, },
78};
79
80static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
81{
82 PyObject *ret;
83 char *s;
84
85 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
86 "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
87 "filename: %s }",
88 pevent->event.mmap.pid, pevent->event.mmap.tid,
89 pevent->event.mmap.start, pevent->event.mmap.len,
90 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
91 ret = PyErr_NoMemory();
92 } else {
93 ret = PyString_FromString(s);
94 free(s);
95 }
96 return ret;
97}
98
99static PyTypeObject pyrf_mmap_event__type = {
100 PyVarObject_HEAD_INIT(NULL, 0)
101 .tp_name = "perf.mmap_event",
102 .tp_basicsize = sizeof(struct pyrf_event),
103 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
104 .tp_doc = pyrf_mmap_event__doc,
105 .tp_members = pyrf_mmap_event__members,
106 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
107};
108
109static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
110
111static PyMemberDef pyrf_task_event__members[] = {
112 sample_members
113 member_def(perf_event_header, type, T_UINT, "event type"),
114 member_def(fork_event, pid, T_UINT, "event pid"),
115 member_def(fork_event, ppid, T_UINT, "event ppid"),
116 member_def(fork_event, tid, T_UINT, "event tid"),
117 member_def(fork_event, ptid, T_UINT, "event ptid"),
118 member_def(fork_event, time, T_ULONGLONG, "timestamp"),
119 { .name = NULL, },
120};
121
122static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
123{
124 return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
125 "ptid: %u, time: %" PRIu64 "}",
126 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
127 pevent->event.fork.pid,
128 pevent->event.fork.ppid,
129 pevent->event.fork.tid,
130 pevent->event.fork.ptid,
131 pevent->event.fork.time);
132}
133
134static PyTypeObject pyrf_task_event__type = {
135 PyVarObject_HEAD_INIT(NULL, 0)
136 .tp_name = "perf.task_event",
137 .tp_basicsize = sizeof(struct pyrf_event),
138 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
139 .tp_doc = pyrf_task_event__doc,
140 .tp_members = pyrf_task_event__members,
141 .tp_repr = (reprfunc)pyrf_task_event__repr,
142};
143
144static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
145
146static PyMemberDef pyrf_comm_event__members[] = {
147 sample_members
148 member_def(perf_event_header, type, T_UINT, "event type"),
149 member_def(comm_event, pid, T_UINT, "event pid"),
150 member_def(comm_event, tid, T_UINT, "event tid"),
151 member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
152 { .name = NULL, },
153};
154
155static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
156{
157 return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
158 pevent->event.comm.pid,
159 pevent->event.comm.tid,
160 pevent->event.comm.comm);
161}
162
163static PyTypeObject pyrf_comm_event__type = {
164 PyVarObject_HEAD_INIT(NULL, 0)
165 .tp_name = "perf.comm_event",
166 .tp_basicsize = sizeof(struct pyrf_event),
167 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
168 .tp_doc = pyrf_comm_event__doc,
169 .tp_members = pyrf_comm_event__members,
170 .tp_repr = (reprfunc)pyrf_comm_event__repr,
171};
172
173static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
174
175static PyMemberDef pyrf_throttle_event__members[] = {
176 sample_members
177 member_def(perf_event_header, type, T_UINT, "event type"),
178 member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
179 member_def(throttle_event, id, T_ULONGLONG, "event id"),
180 member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
181 { .name = NULL, },
182};
183
184static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
185{
186 struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
187
188 return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
189 ", stream_id: %" PRIu64 " }",
190 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
191 te->time, te->id, te->stream_id);
192}
193
194static PyTypeObject pyrf_throttle_event__type = {
195 PyVarObject_HEAD_INIT(NULL, 0)
196 .tp_name = "perf.throttle_event",
197 .tp_basicsize = sizeof(struct pyrf_event),
198 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
199 .tp_doc = pyrf_throttle_event__doc,
200 .tp_members = pyrf_throttle_event__members,
201 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
202};
203
204static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
205
206static PyMemberDef pyrf_lost_event__members[] = {
207 sample_members
208 member_def(lost_event, id, T_ULONGLONG, "event id"),
209 member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
210 { .name = NULL, },
211};
212
213static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
214{
215 PyObject *ret;
216 char *s;
217
218 if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
219 "lost: %#" PRIx64 " }",
220 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
221 ret = PyErr_NoMemory();
222 } else {
223 ret = PyString_FromString(s);
224 free(s);
225 }
226 return ret;
227}
228
229static PyTypeObject pyrf_lost_event__type = {
230 PyVarObject_HEAD_INIT(NULL, 0)
231 .tp_name = "perf.lost_event",
232 .tp_basicsize = sizeof(struct pyrf_event),
233 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
234 .tp_doc = pyrf_lost_event__doc,
235 .tp_members = pyrf_lost_event__members,
236 .tp_repr = (reprfunc)pyrf_lost_event__repr,
237};
238
239static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
240
241static PyMemberDef pyrf_read_event__members[] = {
242 sample_members
243 member_def(read_event, pid, T_UINT, "event pid"),
244 member_def(read_event, tid, T_UINT, "event tid"),
245 { .name = NULL, },
246};
247
248static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
249{
250 return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
251 pevent->event.read.pid,
252 pevent->event.read.tid);
253
254
255
256
257}
258
259static PyTypeObject pyrf_read_event__type = {
260 PyVarObject_HEAD_INIT(NULL, 0)
261 .tp_name = "perf.read_event",
262 .tp_basicsize = sizeof(struct pyrf_event),
263 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
264 .tp_doc = pyrf_read_event__doc,
265 .tp_members = pyrf_read_event__members,
266 .tp_repr = (reprfunc)pyrf_read_event__repr,
267};
268
269static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
270
271static PyMemberDef pyrf_sample_event__members[] = {
272 sample_members
273 member_def(perf_event_header, type, T_UINT, "event type"),
274 { .name = NULL, },
275};
276
277static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
278{
279 PyObject *ret;
280 char *s;
281
282 if (asprintf(&s, "{ type: sample }") < 0) {
283 ret = PyErr_NoMemory();
284 } else {
285 ret = PyString_FromString(s);
286 free(s);
287 }
288 return ret;
289}
290
291static PyTypeObject pyrf_sample_event__type = {
292 PyVarObject_HEAD_INIT(NULL, 0)
293 .tp_name = "perf.sample_event",
294 .tp_basicsize = sizeof(struct pyrf_event),
295 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
296 .tp_doc = pyrf_sample_event__doc,
297 .tp_members = pyrf_sample_event__members,
298 .tp_repr = (reprfunc)pyrf_sample_event__repr,
299};
300
301static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
302
303static PyMemberDef pyrf_context_switch_event__members[] = {
304 sample_members
305 member_def(perf_event_header, type, T_UINT, "event type"),
306 member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"),
307 member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"),
308 { .name = NULL, },
309};
310
311static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
312{
313 PyObject *ret;
314 char *s;
315
316 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
317 pevent->event.context_switch.next_prev_pid,
318 pevent->event.context_switch.next_prev_tid,
319 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
320 ret = PyErr_NoMemory();
321 } else {
322 ret = PyString_FromString(s);
323 free(s);
324 }
325 return ret;
326}
327
328static PyTypeObject pyrf_context_switch_event__type = {
329 PyVarObject_HEAD_INIT(NULL, 0)
330 .tp_name = "perf.context_switch_event",
331 .tp_basicsize = sizeof(struct pyrf_event),
332 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
333 .tp_doc = pyrf_context_switch_event__doc,
334 .tp_members = pyrf_context_switch_event__members,
335 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
336};
337
338static int pyrf_event__setup_types(void)
339{
340 int err;
341 pyrf_mmap_event__type.tp_new =
342 pyrf_task_event__type.tp_new =
343 pyrf_comm_event__type.tp_new =
344 pyrf_lost_event__type.tp_new =
345 pyrf_read_event__type.tp_new =
346 pyrf_sample_event__type.tp_new =
347 pyrf_context_switch_event__type.tp_new =
348 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
349 err = PyType_Ready(&pyrf_mmap_event__type);
350 if (err < 0)
351 goto out;
352 err = PyType_Ready(&pyrf_lost_event__type);
353 if (err < 0)
354 goto out;
355 err = PyType_Ready(&pyrf_task_event__type);
356 if (err < 0)
357 goto out;
358 err = PyType_Ready(&pyrf_comm_event__type);
359 if (err < 0)
360 goto out;
361 err = PyType_Ready(&pyrf_throttle_event__type);
362 if (err < 0)
363 goto out;
364 err = PyType_Ready(&pyrf_read_event__type);
365 if (err < 0)
366 goto out;
367 err = PyType_Ready(&pyrf_sample_event__type);
368 if (err < 0)
369 goto out;
370 err = PyType_Ready(&pyrf_context_switch_event__type);
371 if (err < 0)
372 goto out;
373out:
374 return err;
375}
376
377static PyTypeObject *pyrf_event__type[] = {
378 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
379 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
380 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
381 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
382 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
383 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
384 [PERF_RECORD_FORK] = &pyrf_task_event__type,
385 [PERF_RECORD_READ] = &pyrf_read_event__type,
386 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
387 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
388 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
389};
390
391static PyObject *pyrf_event__new(union perf_event *event)
392{
393 struct pyrf_event *pevent;
394 PyTypeObject *ptype;
395
396 if ((event->header.type < PERF_RECORD_MMAP ||
397 event->header.type > PERF_RECORD_SAMPLE) &&
398 !(event->header.type == PERF_RECORD_SWITCH ||
399 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
400 return NULL;
401
402 ptype = pyrf_event__type[event->header.type];
403 pevent = PyObject_New(struct pyrf_event, ptype);
404 if (pevent != NULL)
405 memcpy(&pevent->event, event, event->header.size);
406 return (PyObject *)pevent;
407}
408
409struct pyrf_cpu_map {
410 PyObject_HEAD
411
412 struct cpu_map *cpus;
413};
414
415static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
416 PyObject *args, PyObject *kwargs)
417{
418 static char *kwlist[] = { "cpustr", NULL };
419 char *cpustr = NULL;
420
421 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
422 kwlist, &cpustr))
423 return -1;
424
425 pcpus->cpus = cpu_map__new(cpustr);
426 if (pcpus->cpus == NULL)
427 return -1;
428 return 0;
429}
430
431static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
432{
433 cpu_map__put(pcpus->cpus);
434 pcpus->ob_type->tp_free((PyObject*)pcpus);
435}
436
437static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
438{
439 struct pyrf_cpu_map *pcpus = (void *)obj;
440
441 return pcpus->cpus->nr;
442}
443
444static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
445{
446 struct pyrf_cpu_map *pcpus = (void *)obj;
447
448 if (i >= pcpus->cpus->nr)
449 return NULL;
450
451 return Py_BuildValue("i", pcpus->cpus->map[i]);
452}
453
454static PySequenceMethods pyrf_cpu_map__sequence_methods = {
455 .sq_length = pyrf_cpu_map__length,
456 .sq_item = pyrf_cpu_map__item,
457};
458
459static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
460
461static PyTypeObject pyrf_cpu_map__type = {
462 PyVarObject_HEAD_INIT(NULL, 0)
463 .tp_name = "perf.cpu_map",
464 .tp_basicsize = sizeof(struct pyrf_cpu_map),
465 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
466 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
467 .tp_doc = pyrf_cpu_map__doc,
468 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
469 .tp_init = (initproc)pyrf_cpu_map__init,
470};
471
472static int pyrf_cpu_map__setup_types(void)
473{
474 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
475 return PyType_Ready(&pyrf_cpu_map__type);
476}
477
478struct pyrf_thread_map {
479 PyObject_HEAD
480
481 struct thread_map *threads;
482};
483
484static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
485 PyObject *args, PyObject *kwargs)
486{
487 static char *kwlist[] = { "pid", "tid", "uid", NULL };
488 int pid = -1, tid = -1, uid = UINT_MAX;
489
490 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
491 kwlist, &pid, &tid, &uid))
492 return -1;
493
494 pthreads->threads = thread_map__new(pid, tid, uid);
495 if (pthreads->threads == NULL)
496 return -1;
497 return 0;
498}
499
500static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
501{
502 thread_map__put(pthreads->threads);
503 pthreads->ob_type->tp_free((PyObject*)pthreads);
504}
505
506static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
507{
508 struct pyrf_thread_map *pthreads = (void *)obj;
509
510 return pthreads->threads->nr;
511}
512
513static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
514{
515 struct pyrf_thread_map *pthreads = (void *)obj;
516
517 if (i >= pthreads->threads->nr)
518 return NULL;
519
520 return Py_BuildValue("i", pthreads->threads->map[i]);
521}
522
523static PySequenceMethods pyrf_thread_map__sequence_methods = {
524 .sq_length = pyrf_thread_map__length,
525 .sq_item = pyrf_thread_map__item,
526};
527
528static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
529
530static PyTypeObject pyrf_thread_map__type = {
531 PyVarObject_HEAD_INIT(NULL, 0)
532 .tp_name = "perf.thread_map",
533 .tp_basicsize = sizeof(struct pyrf_thread_map),
534 .tp_dealloc = (destructor)pyrf_thread_map__delete,
535 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
536 .tp_doc = pyrf_thread_map__doc,
537 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
538 .tp_init = (initproc)pyrf_thread_map__init,
539};
540
541static int pyrf_thread_map__setup_types(void)
542{
543 pyrf_thread_map__type.tp_new = PyType_GenericNew;
544 return PyType_Ready(&pyrf_thread_map__type);
545}
546
547struct pyrf_evsel {
548 PyObject_HEAD
549
550 struct perf_evsel evsel;
551};
552
553static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
554 PyObject *args, PyObject *kwargs)
555{
556 struct perf_event_attr attr = {
557 .type = PERF_TYPE_HARDWARE,
558 .config = PERF_COUNT_HW_CPU_CYCLES,
559 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
560 };
561 static char *kwlist[] = {
562 "type",
563 "config",
564 "sample_freq",
565 "sample_period",
566 "sample_type",
567 "read_format",
568 "disabled",
569 "inherit",
570 "pinned",
571 "exclusive",
572 "exclude_user",
573 "exclude_kernel",
574 "exclude_hv",
575 "exclude_idle",
576 "mmap",
577 "context_switch",
578 "comm",
579 "freq",
580 "inherit_stat",
581 "enable_on_exec",
582 "task",
583 "watermark",
584 "precise_ip",
585 "mmap_data",
586 "sample_id_all",
587 "wakeup_events",
588 "bp_type",
589 "bp_addr",
590 "bp_len",
591 NULL
592 };
593 u64 sample_period = 0;
594 u32 disabled = 0,
595 inherit = 0,
596 pinned = 0,
597 exclusive = 0,
598 exclude_user = 0,
599 exclude_kernel = 0,
600 exclude_hv = 0,
601 exclude_idle = 0,
602 mmap = 0,
603 context_switch = 0,
604 comm = 0,
605 freq = 1,
606 inherit_stat = 0,
607 enable_on_exec = 0,
608 task = 0,
609 watermark = 0,
610 precise_ip = 0,
611 mmap_data = 0,
612 sample_id_all = 1;
613 int idx = 0;
614
615 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
616 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
617 &attr.type, &attr.config, &attr.sample_freq,
618 &sample_period, &attr.sample_type,
619 &attr.read_format, &disabled, &inherit,
620 &pinned, &exclusive, &exclude_user,
621 &exclude_kernel, &exclude_hv, &exclude_idle,
622 &mmap, &context_switch, &comm, &freq, &inherit_stat,
623 &enable_on_exec, &task, &watermark,
624 &precise_ip, &mmap_data, &sample_id_all,
625 &attr.wakeup_events, &attr.bp_type,
626 &attr.bp_addr, &attr.bp_len, &idx))
627 return -1;
628
629
630 if (sample_period != 0) {
631 if (attr.sample_freq != 0)
632 return -1;
633 attr.sample_period = sample_period;
634 }
635
636
637 attr.disabled = disabled;
638 attr.inherit = inherit;
639 attr.pinned = pinned;
640 attr.exclusive = exclusive;
641 attr.exclude_user = exclude_user;
642 attr.exclude_kernel = exclude_kernel;
643 attr.exclude_hv = exclude_hv;
644 attr.exclude_idle = exclude_idle;
645 attr.mmap = mmap;
646 attr.context_switch = context_switch;
647 attr.comm = comm;
648 attr.freq = freq;
649 attr.inherit_stat = inherit_stat;
650 attr.enable_on_exec = enable_on_exec;
651 attr.task = task;
652 attr.watermark = watermark;
653 attr.precise_ip = precise_ip;
654 attr.mmap_data = mmap_data;
655 attr.sample_id_all = sample_id_all;
656
657 perf_evsel__init(&pevsel->evsel, &attr, idx);
658 return 0;
659}
660
661static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
662{
663 perf_evsel__exit(&pevsel->evsel);
664 pevsel->ob_type->tp_free((PyObject*)pevsel);
665}
666
667static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
668 PyObject *args, PyObject *kwargs)
669{
670 struct perf_evsel *evsel = &pevsel->evsel;
671 struct cpu_map *cpus = NULL;
672 struct thread_map *threads = NULL;
673 PyObject *pcpus = NULL, *pthreads = NULL;
674 int group = 0, inherit = 0;
675 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
676
677 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
678 &pcpus, &pthreads, &group, &inherit))
679 return NULL;
680
681 if (pthreads != NULL)
682 threads = ((struct pyrf_thread_map *)pthreads)->threads;
683
684 if (pcpus != NULL)
685 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
686
687 evsel->attr.inherit = inherit;
688
689
690
691
692 if (perf_evsel__open(evsel, cpus, threads) < 0) {
693 PyErr_SetFromErrno(PyExc_OSError);
694 return NULL;
695 }
696
697 Py_INCREF(Py_None);
698 return Py_None;
699}
700
701static PyMethodDef pyrf_evsel__methods[] = {
702 {
703 .ml_name = "open",
704 .ml_meth = (PyCFunction)pyrf_evsel__open,
705 .ml_flags = METH_VARARGS | METH_KEYWORDS,
706 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
707 },
708 { .ml_name = NULL, }
709};
710
711static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
712
713static PyTypeObject pyrf_evsel__type = {
714 PyVarObject_HEAD_INIT(NULL, 0)
715 .tp_name = "perf.evsel",
716 .tp_basicsize = sizeof(struct pyrf_evsel),
717 .tp_dealloc = (destructor)pyrf_evsel__delete,
718 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
719 .tp_doc = pyrf_evsel__doc,
720 .tp_methods = pyrf_evsel__methods,
721 .tp_init = (initproc)pyrf_evsel__init,
722};
723
724static int pyrf_evsel__setup_types(void)
725{
726 pyrf_evsel__type.tp_new = PyType_GenericNew;
727 return PyType_Ready(&pyrf_evsel__type);
728}
729
730struct pyrf_evlist {
731 PyObject_HEAD
732
733 struct perf_evlist evlist;
734};
735
736static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
737 PyObject *args, PyObject *kwargs __maybe_unused)
738{
739 PyObject *pcpus = NULL, *pthreads = NULL;
740 struct cpu_map *cpus;
741 struct thread_map *threads;
742
743 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
744 return -1;
745
746 threads = ((struct pyrf_thread_map *)pthreads)->threads;
747 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
748 perf_evlist__init(&pevlist->evlist, cpus, threads);
749 return 0;
750}
751
752static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
753{
754 perf_evlist__exit(&pevlist->evlist);
755 pevlist->ob_type->tp_free((PyObject*)pevlist);
756}
757
758static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
759 PyObject *args, PyObject *kwargs)
760{
761 struct perf_evlist *evlist = &pevlist->evlist;
762 static char *kwlist[] = { "pages", "overwrite", NULL };
763 int pages = 128, overwrite = false;
764
765 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
766 &pages, &overwrite))
767 return NULL;
768
769 if (perf_evlist__mmap(evlist, pages, overwrite) < 0) {
770 PyErr_SetFromErrno(PyExc_OSError);
771 return NULL;
772 }
773
774 Py_INCREF(Py_None);
775 return Py_None;
776}
777
778static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
779 PyObject *args, PyObject *kwargs)
780{
781 struct perf_evlist *evlist = &pevlist->evlist;
782 static char *kwlist[] = { "timeout", NULL };
783 int timeout = -1, n;
784
785 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
786 return NULL;
787
788 n = perf_evlist__poll(evlist, timeout);
789 if (n < 0) {
790 PyErr_SetFromErrno(PyExc_OSError);
791 return NULL;
792 }
793
794 return Py_BuildValue("i", n);
795}
796
797static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
798 PyObject *args __maybe_unused,
799 PyObject *kwargs __maybe_unused)
800{
801 struct perf_evlist *evlist = &pevlist->evlist;
802 PyObject *list = PyList_New(0);
803 int i;
804
805 for (i = 0; i < evlist->pollfd.nr; ++i) {
806 PyObject *file;
807 FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r");
808
809 if (fp == NULL)
810 goto free_list;
811
812 file = PyFile_FromFile(fp, "perf", "r", NULL);
813 if (file == NULL)
814 goto free_list;
815
816 if (PyList_Append(list, file) != 0) {
817 Py_DECREF(file);
818 goto free_list;
819 }
820
821 Py_DECREF(file);
822 }
823
824 return list;
825free_list:
826 return PyErr_NoMemory();
827}
828
829
830static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
831 PyObject *args,
832 PyObject *kwargs __maybe_unused)
833{
834 struct perf_evlist *evlist = &pevlist->evlist;
835 PyObject *pevsel;
836 struct perf_evsel *evsel;
837
838 if (!PyArg_ParseTuple(args, "O", &pevsel))
839 return NULL;
840
841 Py_INCREF(pevsel);
842 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
843 evsel->idx = evlist->nr_entries;
844 perf_evlist__add(evlist, evsel);
845
846 return Py_BuildValue("i", evlist->nr_entries);
847}
848
849static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
850 PyObject *args, PyObject *kwargs)
851{
852 struct perf_evlist *evlist = &pevlist->evlist;
853 union perf_event *event;
854 int sample_id_all = 1, cpu;
855 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
856 int err;
857
858 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
859 &cpu, &sample_id_all))
860 return NULL;
861
862 event = perf_evlist__mmap_read(evlist, cpu);
863 if (event != NULL) {
864 PyObject *pyevent = pyrf_event__new(event);
865 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
866
867 perf_evlist__mmap_consume(evlist, cpu);
868
869 if (pyevent == NULL)
870 return PyErr_NoMemory();
871
872 err = perf_evlist__parse_sample(evlist, event, &pevent->sample);
873 if (err)
874 return PyErr_Format(PyExc_OSError,
875 "perf: can't parse sample, err=%d", err);
876 return pyevent;
877 }
878
879 Py_INCREF(Py_None);
880 return Py_None;
881}
882
883static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
884 PyObject *args, PyObject *kwargs)
885{
886 struct perf_evlist *evlist = &pevlist->evlist;
887 int group = 0;
888 static char *kwlist[] = { "group", NULL };
889
890 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
891 return NULL;
892
893 if (group)
894 perf_evlist__set_leader(evlist);
895
896 if (perf_evlist__open(evlist) < 0) {
897 PyErr_SetFromErrno(PyExc_OSError);
898 return NULL;
899 }
900
901 Py_INCREF(Py_None);
902 return Py_None;
903}
904
905static PyMethodDef pyrf_evlist__methods[] = {
906 {
907 .ml_name = "mmap",
908 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
909 .ml_flags = METH_VARARGS | METH_KEYWORDS,
910 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
911 },
912 {
913 .ml_name = "open",
914 .ml_meth = (PyCFunction)pyrf_evlist__open,
915 .ml_flags = METH_VARARGS | METH_KEYWORDS,
916 .ml_doc = PyDoc_STR("open the file descriptors.")
917 },
918 {
919 .ml_name = "poll",
920 .ml_meth = (PyCFunction)pyrf_evlist__poll,
921 .ml_flags = METH_VARARGS | METH_KEYWORDS,
922 .ml_doc = PyDoc_STR("poll the file descriptor table.")
923 },
924 {
925 .ml_name = "get_pollfd",
926 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
927 .ml_flags = METH_VARARGS | METH_KEYWORDS,
928 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
929 },
930 {
931 .ml_name = "add",
932 .ml_meth = (PyCFunction)pyrf_evlist__add,
933 .ml_flags = METH_VARARGS | METH_KEYWORDS,
934 .ml_doc = PyDoc_STR("adds an event selector to the list.")
935 },
936 {
937 .ml_name = "read_on_cpu",
938 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
939 .ml_flags = METH_VARARGS | METH_KEYWORDS,
940 .ml_doc = PyDoc_STR("reads an event.")
941 },
942 { .ml_name = NULL, }
943};
944
945static Py_ssize_t pyrf_evlist__length(PyObject *obj)
946{
947 struct pyrf_evlist *pevlist = (void *)obj;
948
949 return pevlist->evlist.nr_entries;
950}
951
952static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
953{
954 struct pyrf_evlist *pevlist = (void *)obj;
955 struct perf_evsel *pos;
956
957 if (i >= pevlist->evlist.nr_entries)
958 return NULL;
959
960 evlist__for_each(&pevlist->evlist, pos) {
961 if (i-- == 0)
962 break;
963 }
964
965 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
966}
967
968static PySequenceMethods pyrf_evlist__sequence_methods = {
969 .sq_length = pyrf_evlist__length,
970 .sq_item = pyrf_evlist__item,
971};
972
973static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
974
975static PyTypeObject pyrf_evlist__type = {
976 PyVarObject_HEAD_INIT(NULL, 0)
977 .tp_name = "perf.evlist",
978 .tp_basicsize = sizeof(struct pyrf_evlist),
979 .tp_dealloc = (destructor)pyrf_evlist__delete,
980 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
981 .tp_as_sequence = &pyrf_evlist__sequence_methods,
982 .tp_doc = pyrf_evlist__doc,
983 .tp_methods = pyrf_evlist__methods,
984 .tp_init = (initproc)pyrf_evlist__init,
985};
986
987static int pyrf_evlist__setup_types(void)
988{
989 pyrf_evlist__type.tp_new = PyType_GenericNew;
990 return PyType_Ready(&pyrf_evlist__type);
991}
992
993#define PERF_CONST(name) { #name, PERF_##name }
994
995static struct {
996 const char *name;
997 int value;
998} perf__constants[] = {
999 PERF_CONST(TYPE_HARDWARE),
1000 PERF_CONST(TYPE_SOFTWARE),
1001 PERF_CONST(TYPE_TRACEPOINT),
1002 PERF_CONST(TYPE_HW_CACHE),
1003 PERF_CONST(TYPE_RAW),
1004 PERF_CONST(TYPE_BREAKPOINT),
1005
1006 PERF_CONST(COUNT_HW_CPU_CYCLES),
1007 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1008 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1009 PERF_CONST(COUNT_HW_CACHE_MISSES),
1010 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1011 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1012 PERF_CONST(COUNT_HW_BUS_CYCLES),
1013 PERF_CONST(COUNT_HW_CACHE_L1D),
1014 PERF_CONST(COUNT_HW_CACHE_L1I),
1015 PERF_CONST(COUNT_HW_CACHE_LL),
1016 PERF_CONST(COUNT_HW_CACHE_DTLB),
1017 PERF_CONST(COUNT_HW_CACHE_ITLB),
1018 PERF_CONST(COUNT_HW_CACHE_BPU),
1019 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1020 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1021 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1022 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1023 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1024
1025 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1026 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1027
1028 PERF_CONST(COUNT_SW_CPU_CLOCK),
1029 PERF_CONST(COUNT_SW_TASK_CLOCK),
1030 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1031 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1032 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1033 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1034 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1035 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1036 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1037 PERF_CONST(COUNT_SW_DUMMY),
1038
1039 PERF_CONST(SAMPLE_IP),
1040 PERF_CONST(SAMPLE_TID),
1041 PERF_CONST(SAMPLE_TIME),
1042 PERF_CONST(SAMPLE_ADDR),
1043 PERF_CONST(SAMPLE_READ),
1044 PERF_CONST(SAMPLE_CALLCHAIN),
1045 PERF_CONST(SAMPLE_ID),
1046 PERF_CONST(SAMPLE_CPU),
1047 PERF_CONST(SAMPLE_PERIOD),
1048 PERF_CONST(SAMPLE_STREAM_ID),
1049 PERF_CONST(SAMPLE_RAW),
1050
1051 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1052 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1053 PERF_CONST(FORMAT_ID),
1054 PERF_CONST(FORMAT_GROUP),
1055
1056 PERF_CONST(RECORD_MMAP),
1057 PERF_CONST(RECORD_LOST),
1058 PERF_CONST(RECORD_COMM),
1059 PERF_CONST(RECORD_EXIT),
1060 PERF_CONST(RECORD_THROTTLE),
1061 PERF_CONST(RECORD_UNTHROTTLE),
1062 PERF_CONST(RECORD_FORK),
1063 PERF_CONST(RECORD_READ),
1064 PERF_CONST(RECORD_SAMPLE),
1065 PERF_CONST(RECORD_MMAP2),
1066 PERF_CONST(RECORD_AUX),
1067 PERF_CONST(RECORD_ITRACE_START),
1068 PERF_CONST(RECORD_LOST_SAMPLES),
1069 PERF_CONST(RECORD_SWITCH),
1070 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1071
1072 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1073 { .name = NULL, },
1074};
1075
1076static PyMethodDef perf__methods[] = {
1077 { .ml_name = NULL, }
1078};
1079
1080PyMODINIT_FUNC initperf(void)
1081{
1082 PyObject *obj;
1083 int i;
1084 PyObject *dict, *module = Py_InitModule("perf", perf__methods);
1085
1086 if (module == NULL ||
1087 pyrf_event__setup_types() < 0 ||
1088 pyrf_evlist__setup_types() < 0 ||
1089 pyrf_evsel__setup_types() < 0 ||
1090 pyrf_thread_map__setup_types() < 0 ||
1091 pyrf_cpu_map__setup_types() < 0)
1092 return;
1093
1094
1095 page_size = sysconf(_SC_PAGE_SIZE);
1096
1097 Py_INCREF(&pyrf_evlist__type);
1098 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1099
1100 Py_INCREF(&pyrf_evsel__type);
1101 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1102
1103 Py_INCREF(&pyrf_thread_map__type);
1104 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1105
1106 Py_INCREF(&pyrf_cpu_map__type);
1107 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1108
1109 dict = PyModule_GetDict(module);
1110 if (dict == NULL)
1111 goto error;
1112
1113 for (i = 0; perf__constants[i].name != NULL; i++) {
1114 obj = PyInt_FromLong(perf__constants[i].value);
1115 if (obj == NULL)
1116 goto error;
1117 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1118 Py_DECREF(obj);
1119 }
1120
1121error:
1122 if (PyErr_Occurred())
1123 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1124}
1125
1126
1127
1128
1129
1130void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1131 int fd, int group_fd, unsigned long flags)
1132{
1133}
1134
