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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, 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/* 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(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 * FIXME: return the array of read values,
255 * making this method useful ;-)
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 /* union... */
630 if (sample_period != 0) {
631 if (attr.sample_freq != 0)
632 return -1; /* FIXME: throw right exception */
633 attr.sample_period = sample_period;
634 }
635
636 /* Bitfields */
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 * This will group just the fds for this single evsel, to group
690 * multiple events, use evlist.open().
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 /* The page_size is placed in util object. */
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 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1128 * binding.
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}
1// SPDX-License-Identifier: GPL-2.0
2#include <Python.h>
3#include <structmember.h>
4#include <inttypes.h>
5#include <poll.h>
6#include <linux/err.h>
7#include <perf/cpumap.h>
8#ifdef HAVE_LIBTRACEEVENT
9#include <traceevent/event-parse.h>
10#endif
11#include <perf/mmap.h>
12#include "evlist.h"
13#include "callchain.h"
14#include "evsel.h"
15#include "event.h"
16#include "print_binary.h"
17#include "thread_map.h"
18#include "trace-event.h"
19#include "mmap.h"
20#include "stat.h"
21#include "metricgroup.h"
22#include "util/env.h"
23#include <internal/lib.h>
24#include "util.h"
25
26#if PY_MAJOR_VERSION < 3
27#define _PyUnicode_FromString(arg) \
28 PyString_FromString(arg)
29#define _PyUnicode_AsString(arg) \
30 PyString_AsString(arg)
31#define _PyUnicode_FromFormat(...) \
32 PyString_FromFormat(__VA_ARGS__)
33#define _PyLong_FromLong(arg) \
34 PyInt_FromLong(arg)
35
36#else
37
38#define _PyUnicode_FromString(arg) \
39 PyUnicode_FromString(arg)
40#define _PyUnicode_FromFormat(...) \
41 PyUnicode_FromFormat(__VA_ARGS__)
42#define _PyLong_FromLong(arg) \
43 PyLong_FromLong(arg)
44#endif
45
46#ifndef Py_TYPE
47#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
48#endif
49
50/*
51 * Provide these two so that we don't have to link against callchain.c and
52 * start dragging hist.c, etc.
53 */
54struct callchain_param callchain_param;
55
56int parse_callchain_record(const char *arg __maybe_unused,
57 struct callchain_param *param __maybe_unused)
58{
59 return 0;
60}
61
62/*
63 * Add these not to drag util/env.c
64 */
65struct perf_env perf_env;
66
67const char *perf_env__cpuid(struct perf_env *env __maybe_unused)
68{
69 return NULL;
70}
71
72// This one is a bit easier, wouldn't drag too much, but leave it as a stub we need it here
73const char *perf_env__arch(struct perf_env *env __maybe_unused)
74{
75 return NULL;
76}
77
78/*
79 * Add this one here not to drag util/stat-shadow.c
80 */
81void perf_stat__collect_metric_expr(struct evlist *evsel_list)
82{
83}
84
85/*
86 * This one is needed not to drag the PMU bandwagon, jevents generated
87 * pmu_sys_event_tables, etc and evsel__find_pmu() is used so far just for
88 * doing per PMU perf_event_attr.exclude_guest handling, not really needed, so
89 * far, for the perf python binding known usecases, revisit if this become
90 * necessary.
91 */
92struct perf_pmu *evsel__find_pmu(struct evsel *evsel __maybe_unused)
93{
94 return NULL;
95}
96
97/*
98 * Add this one here not to drag util/metricgroup.c
99 */
100int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
101 struct rblist *new_metric_events,
102 struct rblist *old_metric_events)
103{
104 return 0;
105}
106
107/*
108 * XXX: All these evsel destructors need some better mechanism, like a linked
109 * list of destructors registered when the relevant code indeed is used instead
110 * of having more and more calls in perf_evsel__delete(). -- acme
111 *
112 * For now, add some more:
113 *
114 * Not to drag the BPF bandwagon...
115 */
116void bpf_counter__destroy(struct evsel *evsel);
117int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd);
118int bpf_counter__disable(struct evsel *evsel);
119
120void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
121{
122}
123
124int bpf_counter__install_pe(struct evsel *evsel __maybe_unused, int cpu __maybe_unused, int fd __maybe_unused)
125{
126 return 0;
127}
128
129int bpf_counter__disable(struct evsel *evsel __maybe_unused)
130{
131 return 0;
132}
133
134/*
135 * Support debug printing even though util/debug.c is not linked. That means
136 * implementing 'verbose' and 'eprintf'.
137 */
138int verbose;
139int debug_peo_args;
140
141int eprintf(int level, int var, const char *fmt, ...);
142
143int eprintf(int level, int var, const char *fmt, ...)
144{
145 va_list args;
146 int ret = 0;
147
148 if (var >= level) {
149 va_start(args, fmt);
150 ret = vfprintf(stderr, fmt, args);
151 va_end(args);
152 }
153
154 return ret;
155}
156
157/* Define PyVarObject_HEAD_INIT for python 2.5 */
158#ifndef PyVarObject_HEAD_INIT
159# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
160#endif
161
162#if PY_MAJOR_VERSION < 3
163PyMODINIT_FUNC initperf(void);
164#else
165PyMODINIT_FUNC PyInit_perf(void);
166#endif
167
168#define member_def(type, member, ptype, help) \
169 { #member, ptype, \
170 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
171 0, help }
172
173#define sample_member_def(name, member, ptype, help) \
174 { #name, ptype, \
175 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
176 0, help }
177
178struct pyrf_event {
179 PyObject_HEAD
180 struct evsel *evsel;
181 struct perf_sample sample;
182 union perf_event event;
183};
184
185#define sample_members \
186 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
187 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
188 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
189 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
190 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
191 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
192 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
193 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
194 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
195
196static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
197
198static PyMemberDef pyrf_mmap_event__members[] = {
199 sample_members
200 member_def(perf_event_header, type, T_UINT, "event type"),
201 member_def(perf_event_header, misc, T_UINT, "event misc"),
202 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
203 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
204 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
205 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
206 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
207 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
208 { .name = NULL, },
209};
210
211static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
212{
213 PyObject *ret;
214 char *s;
215
216 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
217 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
218 "filename: %s }",
219 pevent->event.mmap.pid, pevent->event.mmap.tid,
220 pevent->event.mmap.start, pevent->event.mmap.len,
221 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
222 ret = PyErr_NoMemory();
223 } else {
224 ret = _PyUnicode_FromString(s);
225 free(s);
226 }
227 return ret;
228}
229
230static PyTypeObject pyrf_mmap_event__type = {
231 PyVarObject_HEAD_INIT(NULL, 0)
232 .tp_name = "perf.mmap_event",
233 .tp_basicsize = sizeof(struct pyrf_event),
234 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
235 .tp_doc = pyrf_mmap_event__doc,
236 .tp_members = pyrf_mmap_event__members,
237 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
238};
239
240static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
241
242static PyMemberDef pyrf_task_event__members[] = {
243 sample_members
244 member_def(perf_event_header, type, T_UINT, "event type"),
245 member_def(perf_record_fork, pid, T_UINT, "event pid"),
246 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
247 member_def(perf_record_fork, tid, T_UINT, "event tid"),
248 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
249 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
250 { .name = NULL, },
251};
252
253static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
254{
255 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
256 "ptid: %u, time: %" PRI_lu64 "}",
257 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
258 pevent->event.fork.pid,
259 pevent->event.fork.ppid,
260 pevent->event.fork.tid,
261 pevent->event.fork.ptid,
262 pevent->event.fork.time);
263}
264
265static PyTypeObject pyrf_task_event__type = {
266 PyVarObject_HEAD_INIT(NULL, 0)
267 .tp_name = "perf.task_event",
268 .tp_basicsize = sizeof(struct pyrf_event),
269 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
270 .tp_doc = pyrf_task_event__doc,
271 .tp_members = pyrf_task_event__members,
272 .tp_repr = (reprfunc)pyrf_task_event__repr,
273};
274
275static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
276
277static PyMemberDef pyrf_comm_event__members[] = {
278 sample_members
279 member_def(perf_event_header, type, T_UINT, "event type"),
280 member_def(perf_record_comm, pid, T_UINT, "event pid"),
281 member_def(perf_record_comm, tid, T_UINT, "event tid"),
282 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
283 { .name = NULL, },
284};
285
286static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
287{
288 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
289 pevent->event.comm.pid,
290 pevent->event.comm.tid,
291 pevent->event.comm.comm);
292}
293
294static PyTypeObject pyrf_comm_event__type = {
295 PyVarObject_HEAD_INIT(NULL, 0)
296 .tp_name = "perf.comm_event",
297 .tp_basicsize = sizeof(struct pyrf_event),
298 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
299 .tp_doc = pyrf_comm_event__doc,
300 .tp_members = pyrf_comm_event__members,
301 .tp_repr = (reprfunc)pyrf_comm_event__repr,
302};
303
304static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
305
306static PyMemberDef pyrf_throttle_event__members[] = {
307 sample_members
308 member_def(perf_event_header, type, T_UINT, "event type"),
309 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
310 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
311 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
312 { .name = NULL, },
313};
314
315static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
316{
317 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
318
319 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
320 ", stream_id: %" PRI_lu64 " }",
321 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
322 te->time, te->id, te->stream_id);
323}
324
325static PyTypeObject pyrf_throttle_event__type = {
326 PyVarObject_HEAD_INIT(NULL, 0)
327 .tp_name = "perf.throttle_event",
328 .tp_basicsize = sizeof(struct pyrf_event),
329 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
330 .tp_doc = pyrf_throttle_event__doc,
331 .tp_members = pyrf_throttle_event__members,
332 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
333};
334
335static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
336
337static PyMemberDef pyrf_lost_event__members[] = {
338 sample_members
339 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
340 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
341 { .name = NULL, },
342};
343
344static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
345{
346 PyObject *ret;
347 char *s;
348
349 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
350 "lost: %#" PRI_lx64 " }",
351 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
352 ret = PyErr_NoMemory();
353 } else {
354 ret = _PyUnicode_FromString(s);
355 free(s);
356 }
357 return ret;
358}
359
360static PyTypeObject pyrf_lost_event__type = {
361 PyVarObject_HEAD_INIT(NULL, 0)
362 .tp_name = "perf.lost_event",
363 .tp_basicsize = sizeof(struct pyrf_event),
364 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
365 .tp_doc = pyrf_lost_event__doc,
366 .tp_members = pyrf_lost_event__members,
367 .tp_repr = (reprfunc)pyrf_lost_event__repr,
368};
369
370static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
371
372static PyMemberDef pyrf_read_event__members[] = {
373 sample_members
374 member_def(perf_record_read, pid, T_UINT, "event pid"),
375 member_def(perf_record_read, tid, T_UINT, "event tid"),
376 { .name = NULL, },
377};
378
379static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
380{
381 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
382 pevent->event.read.pid,
383 pevent->event.read.tid);
384 /*
385 * FIXME: return the array of read values,
386 * making this method useful ;-)
387 */
388}
389
390static PyTypeObject pyrf_read_event__type = {
391 PyVarObject_HEAD_INIT(NULL, 0)
392 .tp_name = "perf.read_event",
393 .tp_basicsize = sizeof(struct pyrf_event),
394 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
395 .tp_doc = pyrf_read_event__doc,
396 .tp_members = pyrf_read_event__members,
397 .tp_repr = (reprfunc)pyrf_read_event__repr,
398};
399
400static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
401
402static PyMemberDef pyrf_sample_event__members[] = {
403 sample_members
404 member_def(perf_event_header, type, T_UINT, "event type"),
405 { .name = NULL, },
406};
407
408static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
409{
410 PyObject *ret;
411 char *s;
412
413 if (asprintf(&s, "{ type: sample }") < 0) {
414 ret = PyErr_NoMemory();
415 } else {
416 ret = _PyUnicode_FromString(s);
417 free(s);
418 }
419 return ret;
420}
421
422#ifdef HAVE_LIBTRACEEVENT
423static bool is_tracepoint(struct pyrf_event *pevent)
424{
425 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
426}
427
428static PyObject*
429tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
430{
431 struct tep_handle *pevent = field->event->tep;
432 void *data = pe->sample.raw_data;
433 PyObject *ret = NULL;
434 unsigned long long val;
435 unsigned int offset, len;
436
437 if (field->flags & TEP_FIELD_IS_ARRAY) {
438 offset = field->offset;
439 len = field->size;
440 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
441 val = tep_read_number(pevent, data + offset, len);
442 offset = val;
443 len = offset >> 16;
444 offset &= 0xffff;
445#ifdef HAVE_LIBTRACEEVENT_TEP_FIELD_IS_RELATIVE
446 if (field->flags & TEP_FIELD_IS_RELATIVE)
447 offset += field->offset + field->size;
448#endif
449 }
450 if (field->flags & TEP_FIELD_IS_STRING &&
451 is_printable_array(data + offset, len)) {
452 ret = _PyUnicode_FromString((char *)data + offset);
453 } else {
454 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
455 field->flags &= ~TEP_FIELD_IS_STRING;
456 }
457 } else {
458 val = tep_read_number(pevent, data + field->offset,
459 field->size);
460 if (field->flags & TEP_FIELD_IS_POINTER)
461 ret = PyLong_FromUnsignedLong((unsigned long) val);
462 else if (field->flags & TEP_FIELD_IS_SIGNED)
463 ret = PyLong_FromLong((long) val);
464 else
465 ret = PyLong_FromUnsignedLong((unsigned long) val);
466 }
467
468 return ret;
469}
470
471static PyObject*
472get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
473{
474 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
475 struct evsel *evsel = pevent->evsel;
476 struct tep_format_field *field;
477
478 if (!evsel->tp_format) {
479 struct tep_event *tp_format;
480
481 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
482 if (IS_ERR_OR_NULL(tp_format))
483 return NULL;
484
485 evsel->tp_format = tp_format;
486 }
487
488 field = tep_find_any_field(evsel->tp_format, str);
489 if (!field)
490 return NULL;
491
492 return tracepoint_field(pevent, field);
493}
494#endif /* HAVE_LIBTRACEEVENT */
495
496static PyObject*
497pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
498{
499 PyObject *obj = NULL;
500
501#ifdef HAVE_LIBTRACEEVENT
502 if (is_tracepoint(pevent))
503 obj = get_tracepoint_field(pevent, attr_name);
504#endif
505
506 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
507}
508
509static PyTypeObject pyrf_sample_event__type = {
510 PyVarObject_HEAD_INIT(NULL, 0)
511 .tp_name = "perf.sample_event",
512 .tp_basicsize = sizeof(struct pyrf_event),
513 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
514 .tp_doc = pyrf_sample_event__doc,
515 .tp_members = pyrf_sample_event__members,
516 .tp_repr = (reprfunc)pyrf_sample_event__repr,
517 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
518};
519
520static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
521
522static PyMemberDef pyrf_context_switch_event__members[] = {
523 sample_members
524 member_def(perf_event_header, type, T_UINT, "event type"),
525 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
526 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
527 { .name = NULL, },
528};
529
530static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
531{
532 PyObject *ret;
533 char *s;
534
535 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
536 pevent->event.context_switch.next_prev_pid,
537 pevent->event.context_switch.next_prev_tid,
538 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
539 ret = PyErr_NoMemory();
540 } else {
541 ret = _PyUnicode_FromString(s);
542 free(s);
543 }
544 return ret;
545}
546
547static PyTypeObject pyrf_context_switch_event__type = {
548 PyVarObject_HEAD_INIT(NULL, 0)
549 .tp_name = "perf.context_switch_event",
550 .tp_basicsize = sizeof(struct pyrf_event),
551 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
552 .tp_doc = pyrf_context_switch_event__doc,
553 .tp_members = pyrf_context_switch_event__members,
554 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
555};
556
557static int pyrf_event__setup_types(void)
558{
559 int err;
560 pyrf_mmap_event__type.tp_new =
561 pyrf_task_event__type.tp_new =
562 pyrf_comm_event__type.tp_new =
563 pyrf_lost_event__type.tp_new =
564 pyrf_read_event__type.tp_new =
565 pyrf_sample_event__type.tp_new =
566 pyrf_context_switch_event__type.tp_new =
567 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
568 err = PyType_Ready(&pyrf_mmap_event__type);
569 if (err < 0)
570 goto out;
571 err = PyType_Ready(&pyrf_lost_event__type);
572 if (err < 0)
573 goto out;
574 err = PyType_Ready(&pyrf_task_event__type);
575 if (err < 0)
576 goto out;
577 err = PyType_Ready(&pyrf_comm_event__type);
578 if (err < 0)
579 goto out;
580 err = PyType_Ready(&pyrf_throttle_event__type);
581 if (err < 0)
582 goto out;
583 err = PyType_Ready(&pyrf_read_event__type);
584 if (err < 0)
585 goto out;
586 err = PyType_Ready(&pyrf_sample_event__type);
587 if (err < 0)
588 goto out;
589 err = PyType_Ready(&pyrf_context_switch_event__type);
590 if (err < 0)
591 goto out;
592out:
593 return err;
594}
595
596static PyTypeObject *pyrf_event__type[] = {
597 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
598 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
599 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
600 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
601 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
602 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
603 [PERF_RECORD_FORK] = &pyrf_task_event__type,
604 [PERF_RECORD_READ] = &pyrf_read_event__type,
605 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
606 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
607 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
608};
609
610static PyObject *pyrf_event__new(union perf_event *event)
611{
612 struct pyrf_event *pevent;
613 PyTypeObject *ptype;
614
615 if ((event->header.type < PERF_RECORD_MMAP ||
616 event->header.type > PERF_RECORD_SAMPLE) &&
617 !(event->header.type == PERF_RECORD_SWITCH ||
618 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
619 return NULL;
620
621 ptype = pyrf_event__type[event->header.type];
622 pevent = PyObject_New(struct pyrf_event, ptype);
623 if (pevent != NULL)
624 memcpy(&pevent->event, event, event->header.size);
625 return (PyObject *)pevent;
626}
627
628struct pyrf_cpu_map {
629 PyObject_HEAD
630
631 struct perf_cpu_map *cpus;
632};
633
634static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
635 PyObject *args, PyObject *kwargs)
636{
637 static char *kwlist[] = { "cpustr", NULL };
638 char *cpustr = NULL;
639
640 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
641 kwlist, &cpustr))
642 return -1;
643
644 pcpus->cpus = perf_cpu_map__new(cpustr);
645 if (pcpus->cpus == NULL)
646 return -1;
647 return 0;
648}
649
650static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
651{
652 perf_cpu_map__put(pcpus->cpus);
653 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
654}
655
656static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
657{
658 struct pyrf_cpu_map *pcpus = (void *)obj;
659
660 return perf_cpu_map__nr(pcpus->cpus);
661}
662
663static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
664{
665 struct pyrf_cpu_map *pcpus = (void *)obj;
666
667 if (i >= perf_cpu_map__nr(pcpus->cpus))
668 return NULL;
669
670 return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
671}
672
673static PySequenceMethods pyrf_cpu_map__sequence_methods = {
674 .sq_length = pyrf_cpu_map__length,
675 .sq_item = pyrf_cpu_map__item,
676};
677
678static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
679
680static PyTypeObject pyrf_cpu_map__type = {
681 PyVarObject_HEAD_INIT(NULL, 0)
682 .tp_name = "perf.cpu_map",
683 .tp_basicsize = sizeof(struct pyrf_cpu_map),
684 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
685 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
686 .tp_doc = pyrf_cpu_map__doc,
687 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
688 .tp_init = (initproc)pyrf_cpu_map__init,
689};
690
691static int pyrf_cpu_map__setup_types(void)
692{
693 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
694 return PyType_Ready(&pyrf_cpu_map__type);
695}
696
697struct pyrf_thread_map {
698 PyObject_HEAD
699
700 struct perf_thread_map *threads;
701};
702
703static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
704 PyObject *args, PyObject *kwargs)
705{
706 static char *kwlist[] = { "pid", "tid", "uid", NULL };
707 int pid = -1, tid = -1, uid = UINT_MAX;
708
709 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
710 kwlist, &pid, &tid, &uid))
711 return -1;
712
713 pthreads->threads = thread_map__new(pid, tid, uid);
714 if (pthreads->threads == NULL)
715 return -1;
716 return 0;
717}
718
719static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
720{
721 perf_thread_map__put(pthreads->threads);
722 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
723}
724
725static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
726{
727 struct pyrf_thread_map *pthreads = (void *)obj;
728
729 return perf_thread_map__nr(pthreads->threads);
730}
731
732static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
733{
734 struct pyrf_thread_map *pthreads = (void *)obj;
735
736 if (i >= perf_thread_map__nr(pthreads->threads))
737 return NULL;
738
739 return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
740}
741
742static PySequenceMethods pyrf_thread_map__sequence_methods = {
743 .sq_length = pyrf_thread_map__length,
744 .sq_item = pyrf_thread_map__item,
745};
746
747static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
748
749static PyTypeObject pyrf_thread_map__type = {
750 PyVarObject_HEAD_INIT(NULL, 0)
751 .tp_name = "perf.thread_map",
752 .tp_basicsize = sizeof(struct pyrf_thread_map),
753 .tp_dealloc = (destructor)pyrf_thread_map__delete,
754 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
755 .tp_doc = pyrf_thread_map__doc,
756 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
757 .tp_init = (initproc)pyrf_thread_map__init,
758};
759
760static int pyrf_thread_map__setup_types(void)
761{
762 pyrf_thread_map__type.tp_new = PyType_GenericNew;
763 return PyType_Ready(&pyrf_thread_map__type);
764}
765
766struct pyrf_evsel {
767 PyObject_HEAD
768
769 struct evsel evsel;
770};
771
772static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
773 PyObject *args, PyObject *kwargs)
774{
775 struct perf_event_attr attr = {
776 .type = PERF_TYPE_HARDWARE,
777 .config = PERF_COUNT_HW_CPU_CYCLES,
778 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
779 };
780 static char *kwlist[] = {
781 "type",
782 "config",
783 "sample_freq",
784 "sample_period",
785 "sample_type",
786 "read_format",
787 "disabled",
788 "inherit",
789 "pinned",
790 "exclusive",
791 "exclude_user",
792 "exclude_kernel",
793 "exclude_hv",
794 "exclude_idle",
795 "mmap",
796 "context_switch",
797 "comm",
798 "freq",
799 "inherit_stat",
800 "enable_on_exec",
801 "task",
802 "watermark",
803 "precise_ip",
804 "mmap_data",
805 "sample_id_all",
806 "wakeup_events",
807 "bp_type",
808 "bp_addr",
809 "bp_len",
810 NULL
811 };
812 u64 sample_period = 0;
813 u32 disabled = 0,
814 inherit = 0,
815 pinned = 0,
816 exclusive = 0,
817 exclude_user = 0,
818 exclude_kernel = 0,
819 exclude_hv = 0,
820 exclude_idle = 0,
821 mmap = 0,
822 context_switch = 0,
823 comm = 0,
824 freq = 1,
825 inherit_stat = 0,
826 enable_on_exec = 0,
827 task = 0,
828 watermark = 0,
829 precise_ip = 0,
830 mmap_data = 0,
831 sample_id_all = 1;
832 int idx = 0;
833
834 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
835 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
836 &attr.type, &attr.config, &attr.sample_freq,
837 &sample_period, &attr.sample_type,
838 &attr.read_format, &disabled, &inherit,
839 &pinned, &exclusive, &exclude_user,
840 &exclude_kernel, &exclude_hv, &exclude_idle,
841 &mmap, &context_switch, &comm, &freq, &inherit_stat,
842 &enable_on_exec, &task, &watermark,
843 &precise_ip, &mmap_data, &sample_id_all,
844 &attr.wakeup_events, &attr.bp_type,
845 &attr.bp_addr, &attr.bp_len, &idx))
846 return -1;
847
848 /* union... */
849 if (sample_period != 0) {
850 if (attr.sample_freq != 0)
851 return -1; /* FIXME: throw right exception */
852 attr.sample_period = sample_period;
853 }
854
855 /* Bitfields */
856 attr.disabled = disabled;
857 attr.inherit = inherit;
858 attr.pinned = pinned;
859 attr.exclusive = exclusive;
860 attr.exclude_user = exclude_user;
861 attr.exclude_kernel = exclude_kernel;
862 attr.exclude_hv = exclude_hv;
863 attr.exclude_idle = exclude_idle;
864 attr.mmap = mmap;
865 attr.context_switch = context_switch;
866 attr.comm = comm;
867 attr.freq = freq;
868 attr.inherit_stat = inherit_stat;
869 attr.enable_on_exec = enable_on_exec;
870 attr.task = task;
871 attr.watermark = watermark;
872 attr.precise_ip = precise_ip;
873 attr.mmap_data = mmap_data;
874 attr.sample_id_all = sample_id_all;
875 attr.size = sizeof(attr);
876
877 evsel__init(&pevsel->evsel, &attr, idx);
878 return 0;
879}
880
881static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
882{
883 evsel__exit(&pevsel->evsel);
884 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
885}
886
887static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
888 PyObject *args, PyObject *kwargs)
889{
890 struct evsel *evsel = &pevsel->evsel;
891 struct perf_cpu_map *cpus = NULL;
892 struct perf_thread_map *threads = NULL;
893 PyObject *pcpus = NULL, *pthreads = NULL;
894 int group = 0, inherit = 0;
895 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
896
897 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
898 &pcpus, &pthreads, &group, &inherit))
899 return NULL;
900
901 if (pthreads != NULL)
902 threads = ((struct pyrf_thread_map *)pthreads)->threads;
903
904 if (pcpus != NULL)
905 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
906
907 evsel->core.attr.inherit = inherit;
908 /*
909 * This will group just the fds for this single evsel, to group
910 * multiple events, use evlist.open().
911 */
912 if (evsel__open(evsel, cpus, threads) < 0) {
913 PyErr_SetFromErrno(PyExc_OSError);
914 return NULL;
915 }
916
917 Py_INCREF(Py_None);
918 return Py_None;
919}
920
921static PyMethodDef pyrf_evsel__methods[] = {
922 {
923 .ml_name = "open",
924 .ml_meth = (PyCFunction)pyrf_evsel__open,
925 .ml_flags = METH_VARARGS | METH_KEYWORDS,
926 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
927 },
928 { .ml_name = NULL, }
929};
930
931static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
932
933static PyTypeObject pyrf_evsel__type = {
934 PyVarObject_HEAD_INIT(NULL, 0)
935 .tp_name = "perf.evsel",
936 .tp_basicsize = sizeof(struct pyrf_evsel),
937 .tp_dealloc = (destructor)pyrf_evsel__delete,
938 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
939 .tp_doc = pyrf_evsel__doc,
940 .tp_methods = pyrf_evsel__methods,
941 .tp_init = (initproc)pyrf_evsel__init,
942};
943
944static int pyrf_evsel__setup_types(void)
945{
946 pyrf_evsel__type.tp_new = PyType_GenericNew;
947 return PyType_Ready(&pyrf_evsel__type);
948}
949
950struct pyrf_evlist {
951 PyObject_HEAD
952
953 struct evlist evlist;
954};
955
956static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
957 PyObject *args, PyObject *kwargs __maybe_unused)
958{
959 PyObject *pcpus = NULL, *pthreads = NULL;
960 struct perf_cpu_map *cpus;
961 struct perf_thread_map *threads;
962
963 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
964 return -1;
965
966 threads = ((struct pyrf_thread_map *)pthreads)->threads;
967 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
968 evlist__init(&pevlist->evlist, cpus, threads);
969 return 0;
970}
971
972static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
973{
974 evlist__exit(&pevlist->evlist);
975 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
976}
977
978static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
979 PyObject *args, PyObject *kwargs)
980{
981 struct evlist *evlist = &pevlist->evlist;
982 static char *kwlist[] = { "pages", "overwrite", NULL };
983 int pages = 128, overwrite = false;
984
985 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
986 &pages, &overwrite))
987 return NULL;
988
989 if (evlist__mmap(evlist, pages) < 0) {
990 PyErr_SetFromErrno(PyExc_OSError);
991 return NULL;
992 }
993
994 Py_INCREF(Py_None);
995 return Py_None;
996}
997
998static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
999 PyObject *args, PyObject *kwargs)
1000{
1001 struct evlist *evlist = &pevlist->evlist;
1002 static char *kwlist[] = { "timeout", NULL };
1003 int timeout = -1, n;
1004
1005 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
1006 return NULL;
1007
1008 n = evlist__poll(evlist, timeout);
1009 if (n < 0) {
1010 PyErr_SetFromErrno(PyExc_OSError);
1011 return NULL;
1012 }
1013
1014 return Py_BuildValue("i", n);
1015}
1016
1017static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
1018 PyObject *args __maybe_unused,
1019 PyObject *kwargs __maybe_unused)
1020{
1021 struct evlist *evlist = &pevlist->evlist;
1022 PyObject *list = PyList_New(0);
1023 int i;
1024
1025 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
1026 PyObject *file;
1027#if PY_MAJOR_VERSION < 3
1028 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
1029
1030 if (fp == NULL)
1031 goto free_list;
1032
1033 file = PyFile_FromFile(fp, "perf", "r", NULL);
1034#else
1035 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
1036 NULL, NULL, NULL, 0);
1037#endif
1038 if (file == NULL)
1039 goto free_list;
1040
1041 if (PyList_Append(list, file) != 0) {
1042 Py_DECREF(file);
1043 goto free_list;
1044 }
1045
1046 Py_DECREF(file);
1047 }
1048
1049 return list;
1050free_list:
1051 return PyErr_NoMemory();
1052}
1053
1054
1055static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
1056 PyObject *args,
1057 PyObject *kwargs __maybe_unused)
1058{
1059 struct evlist *evlist = &pevlist->evlist;
1060 PyObject *pevsel;
1061 struct evsel *evsel;
1062
1063 if (!PyArg_ParseTuple(args, "O", &pevsel))
1064 return NULL;
1065
1066 Py_INCREF(pevsel);
1067 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
1068 evsel->core.idx = evlist->core.nr_entries;
1069 evlist__add(evlist, evsel);
1070
1071 return Py_BuildValue("i", evlist->core.nr_entries);
1072}
1073
1074static struct mmap *get_md(struct evlist *evlist, int cpu)
1075{
1076 int i;
1077
1078 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1079 struct mmap *md = &evlist->mmap[i];
1080
1081 if (md->core.cpu.cpu == cpu)
1082 return md;
1083 }
1084
1085 return NULL;
1086}
1087
1088static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1089 PyObject *args, PyObject *kwargs)
1090{
1091 struct evlist *evlist = &pevlist->evlist;
1092 union perf_event *event;
1093 int sample_id_all = 1, cpu;
1094 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1095 struct mmap *md;
1096 int err;
1097
1098 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1099 &cpu, &sample_id_all))
1100 return NULL;
1101
1102 md = get_md(evlist, cpu);
1103 if (!md)
1104 return NULL;
1105
1106 if (perf_mmap__read_init(&md->core) < 0)
1107 goto end;
1108
1109 event = perf_mmap__read_event(&md->core);
1110 if (event != NULL) {
1111 PyObject *pyevent = pyrf_event__new(event);
1112 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1113 struct evsel *evsel;
1114
1115 if (pyevent == NULL)
1116 return PyErr_NoMemory();
1117
1118 evsel = evlist__event2evsel(evlist, event);
1119 if (!evsel) {
1120 Py_INCREF(Py_None);
1121 return Py_None;
1122 }
1123
1124 pevent->evsel = evsel;
1125
1126 err = evsel__parse_sample(evsel, event, &pevent->sample);
1127
1128 /* Consume the even only after we parsed it out. */
1129 perf_mmap__consume(&md->core);
1130
1131 if (err)
1132 return PyErr_Format(PyExc_OSError,
1133 "perf: can't parse sample, err=%d", err);
1134 return pyevent;
1135 }
1136end:
1137 Py_INCREF(Py_None);
1138 return Py_None;
1139}
1140
1141static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1142 PyObject *args, PyObject *kwargs)
1143{
1144 struct evlist *evlist = &pevlist->evlist;
1145
1146 if (evlist__open(evlist) < 0) {
1147 PyErr_SetFromErrno(PyExc_OSError);
1148 return NULL;
1149 }
1150
1151 Py_INCREF(Py_None);
1152 return Py_None;
1153}
1154
1155static PyMethodDef pyrf_evlist__methods[] = {
1156 {
1157 .ml_name = "mmap",
1158 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1159 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1160 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1161 },
1162 {
1163 .ml_name = "open",
1164 .ml_meth = (PyCFunction)pyrf_evlist__open,
1165 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1166 .ml_doc = PyDoc_STR("open the file descriptors.")
1167 },
1168 {
1169 .ml_name = "poll",
1170 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1171 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1172 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1173 },
1174 {
1175 .ml_name = "get_pollfd",
1176 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1177 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1178 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1179 },
1180 {
1181 .ml_name = "add",
1182 .ml_meth = (PyCFunction)pyrf_evlist__add,
1183 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1184 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1185 },
1186 {
1187 .ml_name = "read_on_cpu",
1188 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1189 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1190 .ml_doc = PyDoc_STR("reads an event.")
1191 },
1192 { .ml_name = NULL, }
1193};
1194
1195static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1196{
1197 struct pyrf_evlist *pevlist = (void *)obj;
1198
1199 return pevlist->evlist.core.nr_entries;
1200}
1201
1202static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1203{
1204 struct pyrf_evlist *pevlist = (void *)obj;
1205 struct evsel *pos;
1206
1207 if (i >= pevlist->evlist.core.nr_entries)
1208 return NULL;
1209
1210 evlist__for_each_entry(&pevlist->evlist, pos) {
1211 if (i-- == 0)
1212 break;
1213 }
1214
1215 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1216}
1217
1218static PySequenceMethods pyrf_evlist__sequence_methods = {
1219 .sq_length = pyrf_evlist__length,
1220 .sq_item = pyrf_evlist__item,
1221};
1222
1223static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1224
1225static PyTypeObject pyrf_evlist__type = {
1226 PyVarObject_HEAD_INIT(NULL, 0)
1227 .tp_name = "perf.evlist",
1228 .tp_basicsize = sizeof(struct pyrf_evlist),
1229 .tp_dealloc = (destructor)pyrf_evlist__delete,
1230 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1231 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1232 .tp_doc = pyrf_evlist__doc,
1233 .tp_methods = pyrf_evlist__methods,
1234 .tp_init = (initproc)pyrf_evlist__init,
1235};
1236
1237static int pyrf_evlist__setup_types(void)
1238{
1239 pyrf_evlist__type.tp_new = PyType_GenericNew;
1240 return PyType_Ready(&pyrf_evlist__type);
1241}
1242
1243#define PERF_CONST(name) { #name, PERF_##name }
1244
1245static struct {
1246 const char *name;
1247 int value;
1248} perf__constants[] = {
1249 PERF_CONST(TYPE_HARDWARE),
1250 PERF_CONST(TYPE_SOFTWARE),
1251 PERF_CONST(TYPE_TRACEPOINT),
1252 PERF_CONST(TYPE_HW_CACHE),
1253 PERF_CONST(TYPE_RAW),
1254 PERF_CONST(TYPE_BREAKPOINT),
1255
1256 PERF_CONST(COUNT_HW_CPU_CYCLES),
1257 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1258 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1259 PERF_CONST(COUNT_HW_CACHE_MISSES),
1260 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1261 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1262 PERF_CONST(COUNT_HW_BUS_CYCLES),
1263 PERF_CONST(COUNT_HW_CACHE_L1D),
1264 PERF_CONST(COUNT_HW_CACHE_L1I),
1265 PERF_CONST(COUNT_HW_CACHE_LL),
1266 PERF_CONST(COUNT_HW_CACHE_DTLB),
1267 PERF_CONST(COUNT_HW_CACHE_ITLB),
1268 PERF_CONST(COUNT_HW_CACHE_BPU),
1269 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1270 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1271 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1272 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1273 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1274
1275 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1276 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1277
1278 PERF_CONST(COUNT_SW_CPU_CLOCK),
1279 PERF_CONST(COUNT_SW_TASK_CLOCK),
1280 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1281 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1282 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1283 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1284 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1285 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1286 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1287 PERF_CONST(COUNT_SW_DUMMY),
1288
1289 PERF_CONST(SAMPLE_IP),
1290 PERF_CONST(SAMPLE_TID),
1291 PERF_CONST(SAMPLE_TIME),
1292 PERF_CONST(SAMPLE_ADDR),
1293 PERF_CONST(SAMPLE_READ),
1294 PERF_CONST(SAMPLE_CALLCHAIN),
1295 PERF_CONST(SAMPLE_ID),
1296 PERF_CONST(SAMPLE_CPU),
1297 PERF_CONST(SAMPLE_PERIOD),
1298 PERF_CONST(SAMPLE_STREAM_ID),
1299 PERF_CONST(SAMPLE_RAW),
1300
1301 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1302 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1303 PERF_CONST(FORMAT_ID),
1304 PERF_CONST(FORMAT_GROUP),
1305
1306 PERF_CONST(RECORD_MMAP),
1307 PERF_CONST(RECORD_LOST),
1308 PERF_CONST(RECORD_COMM),
1309 PERF_CONST(RECORD_EXIT),
1310 PERF_CONST(RECORD_THROTTLE),
1311 PERF_CONST(RECORD_UNTHROTTLE),
1312 PERF_CONST(RECORD_FORK),
1313 PERF_CONST(RECORD_READ),
1314 PERF_CONST(RECORD_SAMPLE),
1315 PERF_CONST(RECORD_MMAP2),
1316 PERF_CONST(RECORD_AUX),
1317 PERF_CONST(RECORD_ITRACE_START),
1318 PERF_CONST(RECORD_LOST_SAMPLES),
1319 PERF_CONST(RECORD_SWITCH),
1320 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1321
1322 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1323 { .name = NULL, },
1324};
1325
1326static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1327 PyObject *args, PyObject *kwargs)
1328{
1329#ifndef HAVE_LIBTRACEEVENT
1330 return NULL;
1331#else
1332 struct tep_event *tp_format;
1333 static char *kwlist[] = { "sys", "name", NULL };
1334 char *sys = NULL;
1335 char *name = NULL;
1336
1337 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1338 &sys, &name))
1339 return NULL;
1340
1341 tp_format = trace_event__tp_format(sys, name);
1342 if (IS_ERR(tp_format))
1343 return _PyLong_FromLong(-1);
1344
1345 return _PyLong_FromLong(tp_format->id);
1346#endif // HAVE_LIBTRACEEVENT
1347}
1348
1349static PyMethodDef perf__methods[] = {
1350 {
1351 .ml_name = "tracepoint",
1352 .ml_meth = (PyCFunction) pyrf__tracepoint,
1353 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1354 .ml_doc = PyDoc_STR("Get tracepoint config.")
1355 },
1356 { .ml_name = NULL, }
1357};
1358
1359#if PY_MAJOR_VERSION < 3
1360PyMODINIT_FUNC initperf(void)
1361#else
1362PyMODINIT_FUNC PyInit_perf(void)
1363#endif
1364{
1365 PyObject *obj;
1366 int i;
1367 PyObject *dict;
1368#if PY_MAJOR_VERSION < 3
1369 PyObject *module = Py_InitModule("perf", perf__methods);
1370#else
1371 static struct PyModuleDef moduledef = {
1372 PyModuleDef_HEAD_INIT,
1373 "perf", /* m_name */
1374 "", /* m_doc */
1375 -1, /* m_size */
1376 perf__methods, /* m_methods */
1377 NULL, /* m_reload */
1378 NULL, /* m_traverse */
1379 NULL, /* m_clear */
1380 NULL, /* m_free */
1381 };
1382 PyObject *module = PyModule_Create(&moduledef);
1383#endif
1384
1385 if (module == NULL ||
1386 pyrf_event__setup_types() < 0 ||
1387 pyrf_evlist__setup_types() < 0 ||
1388 pyrf_evsel__setup_types() < 0 ||
1389 pyrf_thread_map__setup_types() < 0 ||
1390 pyrf_cpu_map__setup_types() < 0)
1391#if PY_MAJOR_VERSION < 3
1392 return;
1393#else
1394 return module;
1395#endif
1396
1397 /* The page_size is placed in util object. */
1398 page_size = sysconf(_SC_PAGE_SIZE);
1399
1400 Py_INCREF(&pyrf_evlist__type);
1401 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1402
1403 Py_INCREF(&pyrf_evsel__type);
1404 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1405
1406 Py_INCREF(&pyrf_mmap_event__type);
1407 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1408
1409 Py_INCREF(&pyrf_lost_event__type);
1410 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1411
1412 Py_INCREF(&pyrf_comm_event__type);
1413 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1414
1415 Py_INCREF(&pyrf_task_event__type);
1416 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1417
1418 Py_INCREF(&pyrf_throttle_event__type);
1419 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1420
1421 Py_INCREF(&pyrf_task_event__type);
1422 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1423
1424 Py_INCREF(&pyrf_read_event__type);
1425 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1426
1427 Py_INCREF(&pyrf_sample_event__type);
1428 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1429
1430 Py_INCREF(&pyrf_context_switch_event__type);
1431 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1432
1433 Py_INCREF(&pyrf_thread_map__type);
1434 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1435
1436 Py_INCREF(&pyrf_cpu_map__type);
1437 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1438
1439 dict = PyModule_GetDict(module);
1440 if (dict == NULL)
1441 goto error;
1442
1443 for (i = 0; perf__constants[i].name != NULL; i++) {
1444 obj = _PyLong_FromLong(perf__constants[i].value);
1445 if (obj == NULL)
1446 goto error;
1447 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1448 Py_DECREF(obj);
1449 }
1450
1451error:
1452 if (PyErr_Occurred())
1453 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1454#if PY_MAJOR_VERSION >= 3
1455 return module;
1456#endif
1457}
1458
1459/*
1460 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1461 * binding.
1462 */
1463void test_attr__open(struct perf_event_attr *attr, pid_t pid, struct perf_cpu cpu,
1464 int fd, int group_fd, unsigned long flags)
1465{
1466}