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1// SPDX-License-Identifier: GPL-2.0
2#include <Python.h>
3#include <structmember.h>
4#include <inttypes.h>
5#include <poll.h>
6#include <linux/err.h>
7#include "evlist.h"
8#include "callchain.h"
9#include "evsel.h"
10#include "event.h"
11#include "cpumap.h"
12#include "print_binary.h"
13#include "thread_map.h"
14
15#if PY_MAJOR_VERSION < 3
16#define _PyUnicode_FromString(arg) \
17 PyString_FromString(arg)
18#define _PyUnicode_AsString(arg) \
19 PyString_AsString(arg)
20#define _PyUnicode_FromFormat(...) \
21 PyString_FromFormat(__VA_ARGS__)
22#define _PyLong_FromLong(arg) \
23 PyInt_FromLong(arg)
24
25#else
26
27#define _PyUnicode_FromString(arg) \
28 PyUnicode_FromString(arg)
29#define _PyUnicode_FromFormat(...) \
30 PyUnicode_FromFormat(__VA_ARGS__)
31#define _PyLong_FromLong(arg) \
32 PyLong_FromLong(arg)
33#endif
34
35#ifndef Py_TYPE
36#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
37#endif
38
39/*
40 * Provide these two so that we don't have to link against callchain.c and
41 * start dragging hist.c, etc.
42 */
43struct callchain_param callchain_param;
44
45int parse_callchain_record(const char *arg __maybe_unused,
46 struct callchain_param *param __maybe_unused)
47{
48 return 0;
49}
50
51/*
52 * Support debug printing even though util/debug.c is not linked. That means
53 * implementing 'verbose' and 'eprintf'.
54 */
55int verbose;
56
57int eprintf(int level, int var, const char *fmt, ...)
58{
59 va_list args;
60 int ret = 0;
61
62 if (var >= level) {
63 va_start(args, fmt);
64 ret = vfprintf(stderr, fmt, args);
65 va_end(args);
66 }
67
68 return ret;
69}
70
71/* Define PyVarObject_HEAD_INIT for python 2.5 */
72#ifndef PyVarObject_HEAD_INIT
73# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
74#endif
75
76#if PY_MAJOR_VERSION < 3
77PyMODINIT_FUNC initperf(void);
78#else
79PyMODINIT_FUNC PyInit_perf(void);
80#endif
81
82#define member_def(type, member, ptype, help) \
83 { #member, ptype, \
84 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
85 0, help }
86
87#define sample_member_def(name, member, ptype, help) \
88 { #name, ptype, \
89 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
90 0, help }
91
92struct pyrf_event {
93 PyObject_HEAD
94 struct perf_evsel *evsel;
95 struct perf_sample sample;
96 union perf_event event;
97};
98
99#define sample_members \
100 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
101 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
102 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
103 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
104 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
105 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
106 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
107 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
108 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
109
110static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
111
112static PyMemberDef pyrf_mmap_event__members[] = {
113 sample_members
114 member_def(perf_event_header, type, T_UINT, "event type"),
115 member_def(perf_event_header, misc, T_UINT, "event misc"),
116 member_def(mmap_event, pid, T_UINT, "event pid"),
117 member_def(mmap_event, tid, T_UINT, "event tid"),
118 member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
119 member_def(mmap_event, len, T_ULONGLONG, "map length"),
120 member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
121 member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
122 { .name = NULL, },
123};
124
125static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
126{
127 PyObject *ret;
128 char *s;
129
130 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
131 "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
132 "filename: %s }",
133 pevent->event.mmap.pid, pevent->event.mmap.tid,
134 pevent->event.mmap.start, pevent->event.mmap.len,
135 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
136 ret = PyErr_NoMemory();
137 } else {
138 ret = _PyUnicode_FromString(s);
139 free(s);
140 }
141 return ret;
142}
143
144static PyTypeObject pyrf_mmap_event__type = {
145 PyVarObject_HEAD_INIT(NULL, 0)
146 .tp_name = "perf.mmap_event",
147 .tp_basicsize = sizeof(struct pyrf_event),
148 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
149 .tp_doc = pyrf_mmap_event__doc,
150 .tp_members = pyrf_mmap_event__members,
151 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
152};
153
154static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
155
156static PyMemberDef pyrf_task_event__members[] = {
157 sample_members
158 member_def(perf_event_header, type, T_UINT, "event type"),
159 member_def(fork_event, pid, T_UINT, "event pid"),
160 member_def(fork_event, ppid, T_UINT, "event ppid"),
161 member_def(fork_event, tid, T_UINT, "event tid"),
162 member_def(fork_event, ptid, T_UINT, "event ptid"),
163 member_def(fork_event, time, T_ULONGLONG, "timestamp"),
164 { .name = NULL, },
165};
166
167static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
168{
169 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
170 "ptid: %u, time: %" PRIu64 "}",
171 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
172 pevent->event.fork.pid,
173 pevent->event.fork.ppid,
174 pevent->event.fork.tid,
175 pevent->event.fork.ptid,
176 pevent->event.fork.time);
177}
178
179static PyTypeObject pyrf_task_event__type = {
180 PyVarObject_HEAD_INIT(NULL, 0)
181 .tp_name = "perf.task_event",
182 .tp_basicsize = sizeof(struct pyrf_event),
183 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
184 .tp_doc = pyrf_task_event__doc,
185 .tp_members = pyrf_task_event__members,
186 .tp_repr = (reprfunc)pyrf_task_event__repr,
187};
188
189static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
190
191static PyMemberDef pyrf_comm_event__members[] = {
192 sample_members
193 member_def(perf_event_header, type, T_UINT, "event type"),
194 member_def(comm_event, pid, T_UINT, "event pid"),
195 member_def(comm_event, tid, T_UINT, "event tid"),
196 member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
197 { .name = NULL, },
198};
199
200static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
201{
202 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
203 pevent->event.comm.pid,
204 pevent->event.comm.tid,
205 pevent->event.comm.comm);
206}
207
208static PyTypeObject pyrf_comm_event__type = {
209 PyVarObject_HEAD_INIT(NULL, 0)
210 .tp_name = "perf.comm_event",
211 .tp_basicsize = sizeof(struct pyrf_event),
212 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
213 .tp_doc = pyrf_comm_event__doc,
214 .tp_members = pyrf_comm_event__members,
215 .tp_repr = (reprfunc)pyrf_comm_event__repr,
216};
217
218static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
219
220static PyMemberDef pyrf_throttle_event__members[] = {
221 sample_members
222 member_def(perf_event_header, type, T_UINT, "event type"),
223 member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
224 member_def(throttle_event, id, T_ULONGLONG, "event id"),
225 member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
226 { .name = NULL, },
227};
228
229static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
230{
231 struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
232
233 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
234 ", stream_id: %" PRIu64 " }",
235 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
236 te->time, te->id, te->stream_id);
237}
238
239static PyTypeObject pyrf_throttle_event__type = {
240 PyVarObject_HEAD_INIT(NULL, 0)
241 .tp_name = "perf.throttle_event",
242 .tp_basicsize = sizeof(struct pyrf_event),
243 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
244 .tp_doc = pyrf_throttle_event__doc,
245 .tp_members = pyrf_throttle_event__members,
246 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
247};
248
249static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
250
251static PyMemberDef pyrf_lost_event__members[] = {
252 sample_members
253 member_def(lost_event, id, T_ULONGLONG, "event id"),
254 member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
255 { .name = NULL, },
256};
257
258static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
259{
260 PyObject *ret;
261 char *s;
262
263 if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
264 "lost: %#" PRIx64 " }",
265 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
266 ret = PyErr_NoMemory();
267 } else {
268 ret = _PyUnicode_FromString(s);
269 free(s);
270 }
271 return ret;
272}
273
274static PyTypeObject pyrf_lost_event__type = {
275 PyVarObject_HEAD_INIT(NULL, 0)
276 .tp_name = "perf.lost_event",
277 .tp_basicsize = sizeof(struct pyrf_event),
278 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
279 .tp_doc = pyrf_lost_event__doc,
280 .tp_members = pyrf_lost_event__members,
281 .tp_repr = (reprfunc)pyrf_lost_event__repr,
282};
283
284static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
285
286static PyMemberDef pyrf_read_event__members[] = {
287 sample_members
288 member_def(read_event, pid, T_UINT, "event pid"),
289 member_def(read_event, tid, T_UINT, "event tid"),
290 { .name = NULL, },
291};
292
293static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
294{
295 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
296 pevent->event.read.pid,
297 pevent->event.read.tid);
298 /*
299 * FIXME: return the array of read values,
300 * making this method useful ;-)
301 */
302}
303
304static PyTypeObject pyrf_read_event__type = {
305 PyVarObject_HEAD_INIT(NULL, 0)
306 .tp_name = "perf.read_event",
307 .tp_basicsize = sizeof(struct pyrf_event),
308 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
309 .tp_doc = pyrf_read_event__doc,
310 .tp_members = pyrf_read_event__members,
311 .tp_repr = (reprfunc)pyrf_read_event__repr,
312};
313
314static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
315
316static PyMemberDef pyrf_sample_event__members[] = {
317 sample_members
318 member_def(perf_event_header, type, T_UINT, "event type"),
319 { .name = NULL, },
320};
321
322static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
323{
324 PyObject *ret;
325 char *s;
326
327 if (asprintf(&s, "{ type: sample }") < 0) {
328 ret = PyErr_NoMemory();
329 } else {
330 ret = _PyUnicode_FromString(s);
331 free(s);
332 }
333 return ret;
334}
335
336static bool is_tracepoint(struct pyrf_event *pevent)
337{
338 return pevent->evsel->attr.type == PERF_TYPE_TRACEPOINT;
339}
340
341static PyObject*
342tracepoint_field(struct pyrf_event *pe, struct format_field *field)
343{
344 struct pevent *pevent = field->event->pevent;
345 void *data = pe->sample.raw_data;
346 PyObject *ret = NULL;
347 unsigned long long val;
348 unsigned int offset, len;
349
350 if (field->flags & FIELD_IS_ARRAY) {
351 offset = field->offset;
352 len = field->size;
353 if (field->flags & FIELD_IS_DYNAMIC) {
354 val = pevent_read_number(pevent, data + offset, len);
355 offset = val;
356 len = offset >> 16;
357 offset &= 0xffff;
358 }
359 if (field->flags & FIELD_IS_STRING &&
360 is_printable_array(data + offset, len)) {
361 ret = _PyUnicode_FromString((char *)data + offset);
362 } else {
363 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
364 field->flags &= ~FIELD_IS_STRING;
365 }
366 } else {
367 val = pevent_read_number(pevent, data + field->offset,
368 field->size);
369 if (field->flags & FIELD_IS_POINTER)
370 ret = PyLong_FromUnsignedLong((unsigned long) val);
371 else if (field->flags & FIELD_IS_SIGNED)
372 ret = PyLong_FromLong((long) val);
373 else
374 ret = PyLong_FromUnsignedLong((unsigned long) val);
375 }
376
377 return ret;
378}
379
380static PyObject*
381get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
382{
383 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
384 struct perf_evsel *evsel = pevent->evsel;
385 struct format_field *field;
386
387 if (!evsel->tp_format) {
388 struct event_format *tp_format;
389
390 tp_format = trace_event__tp_format_id(evsel->attr.config);
391 if (!tp_format)
392 return NULL;
393
394 evsel->tp_format = tp_format;
395 }
396
397 field = pevent_find_any_field(evsel->tp_format, str);
398 if (!field)
399 return NULL;
400
401 return tracepoint_field(pevent, field);
402}
403
404static PyObject*
405pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
406{
407 PyObject *obj = NULL;
408
409 if (is_tracepoint(pevent))
410 obj = get_tracepoint_field(pevent, attr_name);
411
412 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
413}
414
415static PyTypeObject pyrf_sample_event__type = {
416 PyVarObject_HEAD_INIT(NULL, 0)
417 .tp_name = "perf.sample_event",
418 .tp_basicsize = sizeof(struct pyrf_event),
419 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
420 .tp_doc = pyrf_sample_event__doc,
421 .tp_members = pyrf_sample_event__members,
422 .tp_repr = (reprfunc)pyrf_sample_event__repr,
423 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
424};
425
426static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
427
428static PyMemberDef pyrf_context_switch_event__members[] = {
429 sample_members
430 member_def(perf_event_header, type, T_UINT, "event type"),
431 member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"),
432 member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"),
433 { .name = NULL, },
434};
435
436static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
437{
438 PyObject *ret;
439 char *s;
440
441 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
442 pevent->event.context_switch.next_prev_pid,
443 pevent->event.context_switch.next_prev_tid,
444 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
445 ret = PyErr_NoMemory();
446 } else {
447 ret = _PyUnicode_FromString(s);
448 free(s);
449 }
450 return ret;
451}
452
453static PyTypeObject pyrf_context_switch_event__type = {
454 PyVarObject_HEAD_INIT(NULL, 0)
455 .tp_name = "perf.context_switch_event",
456 .tp_basicsize = sizeof(struct pyrf_event),
457 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
458 .tp_doc = pyrf_context_switch_event__doc,
459 .tp_members = pyrf_context_switch_event__members,
460 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
461};
462
463static int pyrf_event__setup_types(void)
464{
465 int err;
466 pyrf_mmap_event__type.tp_new =
467 pyrf_task_event__type.tp_new =
468 pyrf_comm_event__type.tp_new =
469 pyrf_lost_event__type.tp_new =
470 pyrf_read_event__type.tp_new =
471 pyrf_sample_event__type.tp_new =
472 pyrf_context_switch_event__type.tp_new =
473 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
474 err = PyType_Ready(&pyrf_mmap_event__type);
475 if (err < 0)
476 goto out;
477 err = PyType_Ready(&pyrf_lost_event__type);
478 if (err < 0)
479 goto out;
480 err = PyType_Ready(&pyrf_task_event__type);
481 if (err < 0)
482 goto out;
483 err = PyType_Ready(&pyrf_comm_event__type);
484 if (err < 0)
485 goto out;
486 err = PyType_Ready(&pyrf_throttle_event__type);
487 if (err < 0)
488 goto out;
489 err = PyType_Ready(&pyrf_read_event__type);
490 if (err < 0)
491 goto out;
492 err = PyType_Ready(&pyrf_sample_event__type);
493 if (err < 0)
494 goto out;
495 err = PyType_Ready(&pyrf_context_switch_event__type);
496 if (err < 0)
497 goto out;
498out:
499 return err;
500}
501
502static PyTypeObject *pyrf_event__type[] = {
503 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
504 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
505 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
506 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
507 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
508 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
509 [PERF_RECORD_FORK] = &pyrf_task_event__type,
510 [PERF_RECORD_READ] = &pyrf_read_event__type,
511 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
512 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
513 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
514};
515
516static PyObject *pyrf_event__new(union perf_event *event)
517{
518 struct pyrf_event *pevent;
519 PyTypeObject *ptype;
520
521 if ((event->header.type < PERF_RECORD_MMAP ||
522 event->header.type > PERF_RECORD_SAMPLE) &&
523 !(event->header.type == PERF_RECORD_SWITCH ||
524 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
525 return NULL;
526
527 ptype = pyrf_event__type[event->header.type];
528 pevent = PyObject_New(struct pyrf_event, ptype);
529 if (pevent != NULL)
530 memcpy(&pevent->event, event, event->header.size);
531 return (PyObject *)pevent;
532}
533
534struct pyrf_cpu_map {
535 PyObject_HEAD
536
537 struct cpu_map *cpus;
538};
539
540static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
541 PyObject *args, PyObject *kwargs)
542{
543 static char *kwlist[] = { "cpustr", NULL };
544 char *cpustr = NULL;
545
546 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
547 kwlist, &cpustr))
548 return -1;
549
550 pcpus->cpus = cpu_map__new(cpustr);
551 if (pcpus->cpus == NULL)
552 return -1;
553 return 0;
554}
555
556static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
557{
558 cpu_map__put(pcpus->cpus);
559 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
560}
561
562static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
563{
564 struct pyrf_cpu_map *pcpus = (void *)obj;
565
566 return pcpus->cpus->nr;
567}
568
569static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
570{
571 struct pyrf_cpu_map *pcpus = (void *)obj;
572
573 if (i >= pcpus->cpus->nr)
574 return NULL;
575
576 return Py_BuildValue("i", pcpus->cpus->map[i]);
577}
578
579static PySequenceMethods pyrf_cpu_map__sequence_methods = {
580 .sq_length = pyrf_cpu_map__length,
581 .sq_item = pyrf_cpu_map__item,
582};
583
584static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
585
586static PyTypeObject pyrf_cpu_map__type = {
587 PyVarObject_HEAD_INIT(NULL, 0)
588 .tp_name = "perf.cpu_map",
589 .tp_basicsize = sizeof(struct pyrf_cpu_map),
590 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
591 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
592 .tp_doc = pyrf_cpu_map__doc,
593 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
594 .tp_init = (initproc)pyrf_cpu_map__init,
595};
596
597static int pyrf_cpu_map__setup_types(void)
598{
599 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
600 return PyType_Ready(&pyrf_cpu_map__type);
601}
602
603struct pyrf_thread_map {
604 PyObject_HEAD
605
606 struct thread_map *threads;
607};
608
609static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
610 PyObject *args, PyObject *kwargs)
611{
612 static char *kwlist[] = { "pid", "tid", "uid", NULL };
613 int pid = -1, tid = -1, uid = UINT_MAX;
614
615 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
616 kwlist, &pid, &tid, &uid))
617 return -1;
618
619 pthreads->threads = thread_map__new(pid, tid, uid);
620 if (pthreads->threads == NULL)
621 return -1;
622 return 0;
623}
624
625static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
626{
627 thread_map__put(pthreads->threads);
628 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
629}
630
631static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
632{
633 struct pyrf_thread_map *pthreads = (void *)obj;
634
635 return pthreads->threads->nr;
636}
637
638static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
639{
640 struct pyrf_thread_map *pthreads = (void *)obj;
641
642 if (i >= pthreads->threads->nr)
643 return NULL;
644
645 return Py_BuildValue("i", pthreads->threads->map[i]);
646}
647
648static PySequenceMethods pyrf_thread_map__sequence_methods = {
649 .sq_length = pyrf_thread_map__length,
650 .sq_item = pyrf_thread_map__item,
651};
652
653static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
654
655static PyTypeObject pyrf_thread_map__type = {
656 PyVarObject_HEAD_INIT(NULL, 0)
657 .tp_name = "perf.thread_map",
658 .tp_basicsize = sizeof(struct pyrf_thread_map),
659 .tp_dealloc = (destructor)pyrf_thread_map__delete,
660 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
661 .tp_doc = pyrf_thread_map__doc,
662 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
663 .tp_init = (initproc)pyrf_thread_map__init,
664};
665
666static int pyrf_thread_map__setup_types(void)
667{
668 pyrf_thread_map__type.tp_new = PyType_GenericNew;
669 return PyType_Ready(&pyrf_thread_map__type);
670}
671
672struct pyrf_evsel {
673 PyObject_HEAD
674
675 struct perf_evsel evsel;
676};
677
678static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
679 PyObject *args, PyObject *kwargs)
680{
681 struct perf_event_attr attr = {
682 .type = PERF_TYPE_HARDWARE,
683 .config = PERF_COUNT_HW_CPU_CYCLES,
684 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
685 };
686 static char *kwlist[] = {
687 "type",
688 "config",
689 "sample_freq",
690 "sample_period",
691 "sample_type",
692 "read_format",
693 "disabled",
694 "inherit",
695 "pinned",
696 "exclusive",
697 "exclude_user",
698 "exclude_kernel",
699 "exclude_hv",
700 "exclude_idle",
701 "mmap",
702 "context_switch",
703 "comm",
704 "freq",
705 "inherit_stat",
706 "enable_on_exec",
707 "task",
708 "watermark",
709 "precise_ip",
710 "mmap_data",
711 "sample_id_all",
712 "wakeup_events",
713 "bp_type",
714 "bp_addr",
715 "bp_len",
716 NULL
717 };
718 u64 sample_period = 0;
719 u32 disabled = 0,
720 inherit = 0,
721 pinned = 0,
722 exclusive = 0,
723 exclude_user = 0,
724 exclude_kernel = 0,
725 exclude_hv = 0,
726 exclude_idle = 0,
727 mmap = 0,
728 context_switch = 0,
729 comm = 0,
730 freq = 1,
731 inherit_stat = 0,
732 enable_on_exec = 0,
733 task = 0,
734 watermark = 0,
735 precise_ip = 0,
736 mmap_data = 0,
737 sample_id_all = 1;
738 int idx = 0;
739
740 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
741 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
742 &attr.type, &attr.config, &attr.sample_freq,
743 &sample_period, &attr.sample_type,
744 &attr.read_format, &disabled, &inherit,
745 &pinned, &exclusive, &exclude_user,
746 &exclude_kernel, &exclude_hv, &exclude_idle,
747 &mmap, &context_switch, &comm, &freq, &inherit_stat,
748 &enable_on_exec, &task, &watermark,
749 &precise_ip, &mmap_data, &sample_id_all,
750 &attr.wakeup_events, &attr.bp_type,
751 &attr.bp_addr, &attr.bp_len, &idx))
752 return -1;
753
754 /* union... */
755 if (sample_period != 0) {
756 if (attr.sample_freq != 0)
757 return -1; /* FIXME: throw right exception */
758 attr.sample_period = sample_period;
759 }
760
761 /* Bitfields */
762 attr.disabled = disabled;
763 attr.inherit = inherit;
764 attr.pinned = pinned;
765 attr.exclusive = exclusive;
766 attr.exclude_user = exclude_user;
767 attr.exclude_kernel = exclude_kernel;
768 attr.exclude_hv = exclude_hv;
769 attr.exclude_idle = exclude_idle;
770 attr.mmap = mmap;
771 attr.context_switch = context_switch;
772 attr.comm = comm;
773 attr.freq = freq;
774 attr.inherit_stat = inherit_stat;
775 attr.enable_on_exec = enable_on_exec;
776 attr.task = task;
777 attr.watermark = watermark;
778 attr.precise_ip = precise_ip;
779 attr.mmap_data = mmap_data;
780 attr.sample_id_all = sample_id_all;
781 attr.size = sizeof(attr);
782
783 perf_evsel__init(&pevsel->evsel, &attr, idx);
784 return 0;
785}
786
787static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
788{
789 perf_evsel__exit(&pevsel->evsel);
790 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
791}
792
793static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
794 PyObject *args, PyObject *kwargs)
795{
796 struct perf_evsel *evsel = &pevsel->evsel;
797 struct cpu_map *cpus = NULL;
798 struct thread_map *threads = NULL;
799 PyObject *pcpus = NULL, *pthreads = NULL;
800 int group = 0, inherit = 0;
801 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
802
803 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
804 &pcpus, &pthreads, &group, &inherit))
805 return NULL;
806
807 if (pthreads != NULL)
808 threads = ((struct pyrf_thread_map *)pthreads)->threads;
809
810 if (pcpus != NULL)
811 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
812
813 evsel->attr.inherit = inherit;
814 /*
815 * This will group just the fds for this single evsel, to group
816 * multiple events, use evlist.open().
817 */
818 if (perf_evsel__open(evsel, cpus, threads) < 0) {
819 PyErr_SetFromErrno(PyExc_OSError);
820 return NULL;
821 }
822
823 Py_INCREF(Py_None);
824 return Py_None;
825}
826
827static PyMethodDef pyrf_evsel__methods[] = {
828 {
829 .ml_name = "open",
830 .ml_meth = (PyCFunction)pyrf_evsel__open,
831 .ml_flags = METH_VARARGS | METH_KEYWORDS,
832 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
833 },
834 { .ml_name = NULL, }
835};
836
837static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
838
839static PyTypeObject pyrf_evsel__type = {
840 PyVarObject_HEAD_INIT(NULL, 0)
841 .tp_name = "perf.evsel",
842 .tp_basicsize = sizeof(struct pyrf_evsel),
843 .tp_dealloc = (destructor)pyrf_evsel__delete,
844 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
845 .tp_doc = pyrf_evsel__doc,
846 .tp_methods = pyrf_evsel__methods,
847 .tp_init = (initproc)pyrf_evsel__init,
848};
849
850static int pyrf_evsel__setup_types(void)
851{
852 pyrf_evsel__type.tp_new = PyType_GenericNew;
853 return PyType_Ready(&pyrf_evsel__type);
854}
855
856struct pyrf_evlist {
857 PyObject_HEAD
858
859 struct perf_evlist evlist;
860};
861
862static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
863 PyObject *args, PyObject *kwargs __maybe_unused)
864{
865 PyObject *pcpus = NULL, *pthreads = NULL;
866 struct cpu_map *cpus;
867 struct thread_map *threads;
868
869 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
870 return -1;
871
872 threads = ((struct pyrf_thread_map *)pthreads)->threads;
873 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
874 perf_evlist__init(&pevlist->evlist, cpus, threads);
875 return 0;
876}
877
878static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
879{
880 perf_evlist__exit(&pevlist->evlist);
881 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
882}
883
884static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
885 PyObject *args, PyObject *kwargs)
886{
887 struct perf_evlist *evlist = &pevlist->evlist;
888 static char *kwlist[] = { "pages", "overwrite", NULL };
889 int pages = 128, overwrite = false;
890
891 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
892 &pages, &overwrite))
893 return NULL;
894
895 if (perf_evlist__mmap(evlist, pages) < 0) {
896 PyErr_SetFromErrno(PyExc_OSError);
897 return NULL;
898 }
899
900 Py_INCREF(Py_None);
901 return Py_None;
902}
903
904static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
905 PyObject *args, PyObject *kwargs)
906{
907 struct perf_evlist *evlist = &pevlist->evlist;
908 static char *kwlist[] = { "timeout", NULL };
909 int timeout = -1, n;
910
911 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
912 return NULL;
913
914 n = perf_evlist__poll(evlist, timeout);
915 if (n < 0) {
916 PyErr_SetFromErrno(PyExc_OSError);
917 return NULL;
918 }
919
920 return Py_BuildValue("i", n);
921}
922
923static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
924 PyObject *args __maybe_unused,
925 PyObject *kwargs __maybe_unused)
926{
927 struct perf_evlist *evlist = &pevlist->evlist;
928 PyObject *list = PyList_New(0);
929 int i;
930
931 for (i = 0; i < evlist->pollfd.nr; ++i) {
932 PyObject *file;
933#if PY_MAJOR_VERSION < 3
934 FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r");
935
936 if (fp == NULL)
937 goto free_list;
938
939 file = PyFile_FromFile(fp, "perf", "r", NULL);
940#else
941 file = PyFile_FromFd(evlist->pollfd.entries[i].fd, "perf", "r", -1, NULL, NULL, NULL, 1);
942#endif
943 if (file == NULL)
944 goto free_list;
945
946 if (PyList_Append(list, file) != 0) {
947 Py_DECREF(file);
948 goto free_list;
949 }
950
951 Py_DECREF(file);
952 }
953
954 return list;
955free_list:
956 return PyErr_NoMemory();
957}
958
959
960static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
961 PyObject *args,
962 PyObject *kwargs __maybe_unused)
963{
964 struct perf_evlist *evlist = &pevlist->evlist;
965 PyObject *pevsel;
966 struct perf_evsel *evsel;
967
968 if (!PyArg_ParseTuple(args, "O", &pevsel))
969 return NULL;
970
971 Py_INCREF(pevsel);
972 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
973 evsel->idx = evlist->nr_entries;
974 perf_evlist__add(evlist, evsel);
975
976 return Py_BuildValue("i", evlist->nr_entries);
977}
978
979static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
980 PyObject *args, PyObject *kwargs)
981{
982 struct perf_evlist *evlist = &pevlist->evlist;
983 union perf_event *event;
984 int sample_id_all = 1, cpu;
985 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
986 struct perf_mmap *md;
987 int err;
988
989 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
990 &cpu, &sample_id_all))
991 return NULL;
992
993 md = &evlist->mmap[cpu];
994 if (perf_mmap__read_init(md) < 0)
995 goto end;
996
997 event = perf_mmap__read_event(md);
998 if (event != NULL) {
999 PyObject *pyevent = pyrf_event__new(event);
1000 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1001 struct perf_evsel *evsel;
1002
1003 if (pyevent == NULL)
1004 return PyErr_NoMemory();
1005
1006 evsel = perf_evlist__event2evsel(evlist, event);
1007 if (!evsel) {
1008 Py_INCREF(Py_None);
1009 return Py_None;
1010 }
1011
1012 pevent->evsel = evsel;
1013
1014 err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
1015
1016 /* Consume the even only after we parsed it out. */
1017 perf_mmap__consume(md);
1018
1019 if (err)
1020 return PyErr_Format(PyExc_OSError,
1021 "perf: can't parse sample, err=%d", err);
1022 return pyevent;
1023 }
1024end:
1025 Py_INCREF(Py_None);
1026 return Py_None;
1027}
1028
1029static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1030 PyObject *args, PyObject *kwargs)
1031{
1032 struct perf_evlist *evlist = &pevlist->evlist;
1033 int group = 0;
1034 static char *kwlist[] = { "group", NULL };
1035
1036 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1037 return NULL;
1038
1039 if (group)
1040 perf_evlist__set_leader(evlist);
1041
1042 if (perf_evlist__open(evlist) < 0) {
1043 PyErr_SetFromErrno(PyExc_OSError);
1044 return NULL;
1045 }
1046
1047 Py_INCREF(Py_None);
1048 return Py_None;
1049}
1050
1051static PyMethodDef pyrf_evlist__methods[] = {
1052 {
1053 .ml_name = "mmap",
1054 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1055 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1056 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1057 },
1058 {
1059 .ml_name = "open",
1060 .ml_meth = (PyCFunction)pyrf_evlist__open,
1061 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1062 .ml_doc = PyDoc_STR("open the file descriptors.")
1063 },
1064 {
1065 .ml_name = "poll",
1066 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1067 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1068 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1069 },
1070 {
1071 .ml_name = "get_pollfd",
1072 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1073 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1074 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1075 },
1076 {
1077 .ml_name = "add",
1078 .ml_meth = (PyCFunction)pyrf_evlist__add,
1079 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1080 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1081 },
1082 {
1083 .ml_name = "read_on_cpu",
1084 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1085 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1086 .ml_doc = PyDoc_STR("reads an event.")
1087 },
1088 { .ml_name = NULL, }
1089};
1090
1091static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1092{
1093 struct pyrf_evlist *pevlist = (void *)obj;
1094
1095 return pevlist->evlist.nr_entries;
1096}
1097
1098static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1099{
1100 struct pyrf_evlist *pevlist = (void *)obj;
1101 struct perf_evsel *pos;
1102
1103 if (i >= pevlist->evlist.nr_entries)
1104 return NULL;
1105
1106 evlist__for_each_entry(&pevlist->evlist, pos) {
1107 if (i-- == 0)
1108 break;
1109 }
1110
1111 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1112}
1113
1114static PySequenceMethods pyrf_evlist__sequence_methods = {
1115 .sq_length = pyrf_evlist__length,
1116 .sq_item = pyrf_evlist__item,
1117};
1118
1119static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1120
1121static PyTypeObject pyrf_evlist__type = {
1122 PyVarObject_HEAD_INIT(NULL, 0)
1123 .tp_name = "perf.evlist",
1124 .tp_basicsize = sizeof(struct pyrf_evlist),
1125 .tp_dealloc = (destructor)pyrf_evlist__delete,
1126 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1127 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1128 .tp_doc = pyrf_evlist__doc,
1129 .tp_methods = pyrf_evlist__methods,
1130 .tp_init = (initproc)pyrf_evlist__init,
1131};
1132
1133static int pyrf_evlist__setup_types(void)
1134{
1135 pyrf_evlist__type.tp_new = PyType_GenericNew;
1136 return PyType_Ready(&pyrf_evlist__type);
1137}
1138
1139#define PERF_CONST(name) { #name, PERF_##name }
1140
1141static struct {
1142 const char *name;
1143 int value;
1144} perf__constants[] = {
1145 PERF_CONST(TYPE_HARDWARE),
1146 PERF_CONST(TYPE_SOFTWARE),
1147 PERF_CONST(TYPE_TRACEPOINT),
1148 PERF_CONST(TYPE_HW_CACHE),
1149 PERF_CONST(TYPE_RAW),
1150 PERF_CONST(TYPE_BREAKPOINT),
1151
1152 PERF_CONST(COUNT_HW_CPU_CYCLES),
1153 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1154 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1155 PERF_CONST(COUNT_HW_CACHE_MISSES),
1156 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1157 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1158 PERF_CONST(COUNT_HW_BUS_CYCLES),
1159 PERF_CONST(COUNT_HW_CACHE_L1D),
1160 PERF_CONST(COUNT_HW_CACHE_L1I),
1161 PERF_CONST(COUNT_HW_CACHE_LL),
1162 PERF_CONST(COUNT_HW_CACHE_DTLB),
1163 PERF_CONST(COUNT_HW_CACHE_ITLB),
1164 PERF_CONST(COUNT_HW_CACHE_BPU),
1165 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1166 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1167 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1168 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1169 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1170
1171 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1172 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1173
1174 PERF_CONST(COUNT_SW_CPU_CLOCK),
1175 PERF_CONST(COUNT_SW_TASK_CLOCK),
1176 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1177 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1178 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1179 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1180 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1181 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1182 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1183 PERF_CONST(COUNT_SW_DUMMY),
1184
1185 PERF_CONST(SAMPLE_IP),
1186 PERF_CONST(SAMPLE_TID),
1187 PERF_CONST(SAMPLE_TIME),
1188 PERF_CONST(SAMPLE_ADDR),
1189 PERF_CONST(SAMPLE_READ),
1190 PERF_CONST(SAMPLE_CALLCHAIN),
1191 PERF_CONST(SAMPLE_ID),
1192 PERF_CONST(SAMPLE_CPU),
1193 PERF_CONST(SAMPLE_PERIOD),
1194 PERF_CONST(SAMPLE_STREAM_ID),
1195 PERF_CONST(SAMPLE_RAW),
1196
1197 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1198 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1199 PERF_CONST(FORMAT_ID),
1200 PERF_CONST(FORMAT_GROUP),
1201
1202 PERF_CONST(RECORD_MMAP),
1203 PERF_CONST(RECORD_LOST),
1204 PERF_CONST(RECORD_COMM),
1205 PERF_CONST(RECORD_EXIT),
1206 PERF_CONST(RECORD_THROTTLE),
1207 PERF_CONST(RECORD_UNTHROTTLE),
1208 PERF_CONST(RECORD_FORK),
1209 PERF_CONST(RECORD_READ),
1210 PERF_CONST(RECORD_SAMPLE),
1211 PERF_CONST(RECORD_MMAP2),
1212 PERF_CONST(RECORD_AUX),
1213 PERF_CONST(RECORD_ITRACE_START),
1214 PERF_CONST(RECORD_LOST_SAMPLES),
1215 PERF_CONST(RECORD_SWITCH),
1216 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1217
1218 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1219 { .name = NULL, },
1220};
1221
1222static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1223 PyObject *args, PyObject *kwargs)
1224{
1225 struct event_format *tp_format;
1226 static char *kwlist[] = { "sys", "name", NULL };
1227 char *sys = NULL;
1228 char *name = NULL;
1229
1230 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1231 &sys, &name))
1232 return NULL;
1233
1234 tp_format = trace_event__tp_format(sys, name);
1235 if (IS_ERR(tp_format))
1236 return _PyLong_FromLong(-1);
1237
1238 return _PyLong_FromLong(tp_format->id);
1239}
1240
1241static PyMethodDef perf__methods[] = {
1242 {
1243 .ml_name = "tracepoint",
1244 .ml_meth = (PyCFunction) pyrf__tracepoint,
1245 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1246 .ml_doc = PyDoc_STR("Get tracepoint config.")
1247 },
1248 { .ml_name = NULL, }
1249};
1250
1251#if PY_MAJOR_VERSION < 3
1252PyMODINIT_FUNC initperf(void)
1253#else
1254PyMODINIT_FUNC PyInit_perf(void)
1255#endif
1256{
1257 PyObject *obj;
1258 int i;
1259 PyObject *dict;
1260#if PY_MAJOR_VERSION < 3
1261 PyObject *module = Py_InitModule("perf", perf__methods);
1262#else
1263 static struct PyModuleDef moduledef = {
1264 PyModuleDef_HEAD_INIT,
1265 "perf", /* m_name */
1266 "", /* m_doc */
1267 -1, /* m_size */
1268 perf__methods, /* m_methods */
1269 NULL, /* m_reload */
1270 NULL, /* m_traverse */
1271 NULL, /* m_clear */
1272 NULL, /* m_free */
1273 };
1274 PyObject *module = PyModule_Create(&moduledef);
1275#endif
1276
1277 if (module == NULL ||
1278 pyrf_event__setup_types() < 0 ||
1279 pyrf_evlist__setup_types() < 0 ||
1280 pyrf_evsel__setup_types() < 0 ||
1281 pyrf_thread_map__setup_types() < 0 ||
1282 pyrf_cpu_map__setup_types() < 0)
1283#if PY_MAJOR_VERSION < 3
1284 return;
1285#else
1286 return module;
1287#endif
1288
1289 /* The page_size is placed in util object. */
1290 page_size = sysconf(_SC_PAGE_SIZE);
1291
1292 Py_INCREF(&pyrf_evlist__type);
1293 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1294
1295 Py_INCREF(&pyrf_evsel__type);
1296 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1297
1298 Py_INCREF(&pyrf_mmap_event__type);
1299 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1300
1301 Py_INCREF(&pyrf_lost_event__type);
1302 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1303
1304 Py_INCREF(&pyrf_comm_event__type);
1305 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1306
1307 Py_INCREF(&pyrf_task_event__type);
1308 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1309
1310 Py_INCREF(&pyrf_throttle_event__type);
1311 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1312
1313 Py_INCREF(&pyrf_task_event__type);
1314 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1315
1316 Py_INCREF(&pyrf_read_event__type);
1317 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1318
1319 Py_INCREF(&pyrf_sample_event__type);
1320 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1321
1322 Py_INCREF(&pyrf_context_switch_event__type);
1323 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1324
1325 Py_INCREF(&pyrf_thread_map__type);
1326 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1327
1328 Py_INCREF(&pyrf_cpu_map__type);
1329 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1330
1331 dict = PyModule_GetDict(module);
1332 if (dict == NULL)
1333 goto error;
1334
1335 for (i = 0; perf__constants[i].name != NULL; i++) {
1336 obj = _PyLong_FromLong(perf__constants[i].value);
1337 if (obj == NULL)
1338 goto error;
1339 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1340 Py_DECREF(obj);
1341 }
1342
1343error:
1344 if (PyErr_Occurred())
1345 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1346#if PY_MAJOR_VERSION >= 3
1347 return module;
1348#endif
1349}
1350
1351/*
1352 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1353 * binding.
1354 */
1355void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1356 int fd, int group_fd, unsigned long flags)
1357{
1358}
1#include <Python.h>
2#include <structmember.h>
3#include <inttypes.h>
4#include <poll.h>
5#include <linux/err.h>
6#include "evlist.h"
7#include "evsel.h"
8#include "event.h"
9#include "cpumap.h"
10#include "thread_map.h"
11
12/*
13 * Support debug printing even though util/debug.c is not linked. That means
14 * implementing 'verbose' and 'eprintf'.
15 */
16int verbose;
17
18int eprintf(int level, int var, const char *fmt, ...)
19{
20 va_list args;
21 int ret = 0;
22
23 if (var >= level) {
24 va_start(args, fmt);
25 ret = vfprintf(stderr, fmt, args);
26 va_end(args);
27 }
28
29 return ret;
30}
31
32/* Define PyVarObject_HEAD_INIT for python 2.5 */
33#ifndef PyVarObject_HEAD_INIT
34# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
35#endif
36
37PyMODINIT_FUNC initperf(void);
38
39#define member_def(type, member, ptype, help) \
40 { #member, ptype, \
41 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
42 0, help }
43
44#define sample_member_def(name, member, ptype, help) \
45 { #name, ptype, \
46 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
47 0, help }
48
49struct pyrf_event {
50 PyObject_HEAD
51 struct perf_evsel *evsel;
52 struct perf_sample sample;
53 union perf_event event;
54};
55
56#define sample_members \
57 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
58 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
59 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
60 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
61 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
62 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
63 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
64 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
65 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
66
67static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
68
69static PyMemberDef pyrf_mmap_event__members[] = {
70 sample_members
71 member_def(perf_event_header, type, T_UINT, "event type"),
72 member_def(perf_event_header, misc, T_UINT, "event misc"),
73 member_def(mmap_event, pid, T_UINT, "event pid"),
74 member_def(mmap_event, tid, T_UINT, "event tid"),
75 member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
76 member_def(mmap_event, len, T_ULONGLONG, "map length"),
77 member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
78 member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
79 { .name = NULL, },
80};
81
82static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
83{
84 PyObject *ret;
85 char *s;
86
87 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
88 "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
89 "filename: %s }",
90 pevent->event.mmap.pid, pevent->event.mmap.tid,
91 pevent->event.mmap.start, pevent->event.mmap.len,
92 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
93 ret = PyErr_NoMemory();
94 } else {
95 ret = PyString_FromString(s);
96 free(s);
97 }
98 return ret;
99}
100
101static PyTypeObject pyrf_mmap_event__type = {
102 PyVarObject_HEAD_INIT(NULL, 0)
103 .tp_name = "perf.mmap_event",
104 .tp_basicsize = sizeof(struct pyrf_event),
105 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
106 .tp_doc = pyrf_mmap_event__doc,
107 .tp_members = pyrf_mmap_event__members,
108 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
109};
110
111static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
112
113static PyMemberDef pyrf_task_event__members[] = {
114 sample_members
115 member_def(perf_event_header, type, T_UINT, "event type"),
116 member_def(fork_event, pid, T_UINT, "event pid"),
117 member_def(fork_event, ppid, T_UINT, "event ppid"),
118 member_def(fork_event, tid, T_UINT, "event tid"),
119 member_def(fork_event, ptid, T_UINT, "event ptid"),
120 member_def(fork_event, time, T_ULONGLONG, "timestamp"),
121 { .name = NULL, },
122};
123
124static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
125{
126 return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
127 "ptid: %u, time: %" PRIu64 "}",
128 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
129 pevent->event.fork.pid,
130 pevent->event.fork.ppid,
131 pevent->event.fork.tid,
132 pevent->event.fork.ptid,
133 pevent->event.fork.time);
134}
135
136static PyTypeObject pyrf_task_event__type = {
137 PyVarObject_HEAD_INIT(NULL, 0)
138 .tp_name = "perf.task_event",
139 .tp_basicsize = sizeof(struct pyrf_event),
140 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
141 .tp_doc = pyrf_task_event__doc,
142 .tp_members = pyrf_task_event__members,
143 .tp_repr = (reprfunc)pyrf_task_event__repr,
144};
145
146static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
147
148static PyMemberDef pyrf_comm_event__members[] = {
149 sample_members
150 member_def(perf_event_header, type, T_UINT, "event type"),
151 member_def(comm_event, pid, T_UINT, "event pid"),
152 member_def(comm_event, tid, T_UINT, "event tid"),
153 member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
154 { .name = NULL, },
155};
156
157static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
158{
159 return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
160 pevent->event.comm.pid,
161 pevent->event.comm.tid,
162 pevent->event.comm.comm);
163}
164
165static PyTypeObject pyrf_comm_event__type = {
166 PyVarObject_HEAD_INIT(NULL, 0)
167 .tp_name = "perf.comm_event",
168 .tp_basicsize = sizeof(struct pyrf_event),
169 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
170 .tp_doc = pyrf_comm_event__doc,
171 .tp_members = pyrf_comm_event__members,
172 .tp_repr = (reprfunc)pyrf_comm_event__repr,
173};
174
175static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
176
177static PyMemberDef pyrf_throttle_event__members[] = {
178 sample_members
179 member_def(perf_event_header, type, T_UINT, "event type"),
180 member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
181 member_def(throttle_event, id, T_ULONGLONG, "event id"),
182 member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
183 { .name = NULL, },
184};
185
186static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
187{
188 struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
189
190 return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
191 ", stream_id: %" PRIu64 " }",
192 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
193 te->time, te->id, te->stream_id);
194}
195
196static PyTypeObject pyrf_throttle_event__type = {
197 PyVarObject_HEAD_INIT(NULL, 0)
198 .tp_name = "perf.throttle_event",
199 .tp_basicsize = sizeof(struct pyrf_event),
200 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
201 .tp_doc = pyrf_throttle_event__doc,
202 .tp_members = pyrf_throttle_event__members,
203 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
204};
205
206static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
207
208static PyMemberDef pyrf_lost_event__members[] = {
209 sample_members
210 member_def(lost_event, id, T_ULONGLONG, "event id"),
211 member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
212 { .name = NULL, },
213};
214
215static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
216{
217 PyObject *ret;
218 char *s;
219
220 if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
221 "lost: %#" PRIx64 " }",
222 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
223 ret = PyErr_NoMemory();
224 } else {
225 ret = PyString_FromString(s);
226 free(s);
227 }
228 return ret;
229}
230
231static PyTypeObject pyrf_lost_event__type = {
232 PyVarObject_HEAD_INIT(NULL, 0)
233 .tp_name = "perf.lost_event",
234 .tp_basicsize = sizeof(struct pyrf_event),
235 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
236 .tp_doc = pyrf_lost_event__doc,
237 .tp_members = pyrf_lost_event__members,
238 .tp_repr = (reprfunc)pyrf_lost_event__repr,
239};
240
241static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
242
243static PyMemberDef pyrf_read_event__members[] = {
244 sample_members
245 member_def(read_event, pid, T_UINT, "event pid"),
246 member_def(read_event, tid, T_UINT, "event tid"),
247 { .name = NULL, },
248};
249
250static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
251{
252 return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
253 pevent->event.read.pid,
254 pevent->event.read.tid);
255 /*
256 * FIXME: return the array of read values,
257 * making this method useful ;-)
258 */
259}
260
261static PyTypeObject pyrf_read_event__type = {
262 PyVarObject_HEAD_INIT(NULL, 0)
263 .tp_name = "perf.read_event",
264 .tp_basicsize = sizeof(struct pyrf_event),
265 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
266 .tp_doc = pyrf_read_event__doc,
267 .tp_members = pyrf_read_event__members,
268 .tp_repr = (reprfunc)pyrf_read_event__repr,
269};
270
271static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
272
273static PyMemberDef pyrf_sample_event__members[] = {
274 sample_members
275 member_def(perf_event_header, type, T_UINT, "event type"),
276 { .name = NULL, },
277};
278
279static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
280{
281 PyObject *ret;
282 char *s;
283
284 if (asprintf(&s, "{ type: sample }") < 0) {
285 ret = PyErr_NoMemory();
286 } else {
287 ret = PyString_FromString(s);
288 free(s);
289 }
290 return ret;
291}
292
293static bool is_tracepoint(struct pyrf_event *pevent)
294{
295 return pevent->evsel->attr.type == PERF_TYPE_TRACEPOINT;
296}
297
298static PyObject*
299tracepoint_field(struct pyrf_event *pe, struct format_field *field)
300{
301 struct pevent *pevent = field->event->pevent;
302 void *data = pe->sample.raw_data;
303 PyObject *ret = NULL;
304 unsigned long long val;
305 unsigned int offset, len;
306
307 if (field->flags & FIELD_IS_ARRAY) {
308 offset = field->offset;
309 len = field->size;
310 if (field->flags & FIELD_IS_DYNAMIC) {
311 val = pevent_read_number(pevent, data + offset, len);
312 offset = val;
313 len = offset >> 16;
314 offset &= 0xffff;
315 }
316 if (field->flags & FIELD_IS_STRING &&
317 is_printable_array(data + offset, len)) {
318 ret = PyString_FromString((char *)data + offset);
319 } else {
320 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
321 field->flags &= ~FIELD_IS_STRING;
322 }
323 } else {
324 val = pevent_read_number(pevent, data + field->offset,
325 field->size);
326 if (field->flags & FIELD_IS_POINTER)
327 ret = PyLong_FromUnsignedLong((unsigned long) val);
328 else if (field->flags & FIELD_IS_SIGNED)
329 ret = PyLong_FromLong((long) val);
330 else
331 ret = PyLong_FromUnsignedLong((unsigned long) val);
332 }
333
334 return ret;
335}
336
337static PyObject*
338get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
339{
340 const char *str = PyString_AsString(PyObject_Str(attr_name));
341 struct perf_evsel *evsel = pevent->evsel;
342 struct format_field *field;
343
344 if (!evsel->tp_format) {
345 struct event_format *tp_format;
346
347 tp_format = trace_event__tp_format_id(evsel->attr.config);
348 if (!tp_format)
349 return NULL;
350
351 evsel->tp_format = tp_format;
352 }
353
354 field = pevent_find_any_field(evsel->tp_format, str);
355 if (!field)
356 return NULL;
357
358 return tracepoint_field(pevent, field);
359}
360
361static PyObject*
362pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
363{
364 PyObject *obj = NULL;
365
366 if (is_tracepoint(pevent))
367 obj = get_tracepoint_field(pevent, attr_name);
368
369 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
370}
371
372static PyTypeObject pyrf_sample_event__type = {
373 PyVarObject_HEAD_INIT(NULL, 0)
374 .tp_name = "perf.sample_event",
375 .tp_basicsize = sizeof(struct pyrf_event),
376 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
377 .tp_doc = pyrf_sample_event__doc,
378 .tp_members = pyrf_sample_event__members,
379 .tp_repr = (reprfunc)pyrf_sample_event__repr,
380 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
381};
382
383static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
384
385static PyMemberDef pyrf_context_switch_event__members[] = {
386 sample_members
387 member_def(perf_event_header, type, T_UINT, "event type"),
388 member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"),
389 member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"),
390 { .name = NULL, },
391};
392
393static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
394{
395 PyObject *ret;
396 char *s;
397
398 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
399 pevent->event.context_switch.next_prev_pid,
400 pevent->event.context_switch.next_prev_tid,
401 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
402 ret = PyErr_NoMemory();
403 } else {
404 ret = PyString_FromString(s);
405 free(s);
406 }
407 return ret;
408}
409
410static PyTypeObject pyrf_context_switch_event__type = {
411 PyVarObject_HEAD_INIT(NULL, 0)
412 .tp_name = "perf.context_switch_event",
413 .tp_basicsize = sizeof(struct pyrf_event),
414 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
415 .tp_doc = pyrf_context_switch_event__doc,
416 .tp_members = pyrf_context_switch_event__members,
417 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
418};
419
420static int pyrf_event__setup_types(void)
421{
422 int err;
423 pyrf_mmap_event__type.tp_new =
424 pyrf_task_event__type.tp_new =
425 pyrf_comm_event__type.tp_new =
426 pyrf_lost_event__type.tp_new =
427 pyrf_read_event__type.tp_new =
428 pyrf_sample_event__type.tp_new =
429 pyrf_context_switch_event__type.tp_new =
430 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
431 err = PyType_Ready(&pyrf_mmap_event__type);
432 if (err < 0)
433 goto out;
434 err = PyType_Ready(&pyrf_lost_event__type);
435 if (err < 0)
436 goto out;
437 err = PyType_Ready(&pyrf_task_event__type);
438 if (err < 0)
439 goto out;
440 err = PyType_Ready(&pyrf_comm_event__type);
441 if (err < 0)
442 goto out;
443 err = PyType_Ready(&pyrf_throttle_event__type);
444 if (err < 0)
445 goto out;
446 err = PyType_Ready(&pyrf_read_event__type);
447 if (err < 0)
448 goto out;
449 err = PyType_Ready(&pyrf_sample_event__type);
450 if (err < 0)
451 goto out;
452 err = PyType_Ready(&pyrf_context_switch_event__type);
453 if (err < 0)
454 goto out;
455out:
456 return err;
457}
458
459static PyTypeObject *pyrf_event__type[] = {
460 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
461 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
462 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
463 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
464 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
465 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
466 [PERF_RECORD_FORK] = &pyrf_task_event__type,
467 [PERF_RECORD_READ] = &pyrf_read_event__type,
468 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
469 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
470 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
471};
472
473static PyObject *pyrf_event__new(union perf_event *event)
474{
475 struct pyrf_event *pevent;
476 PyTypeObject *ptype;
477
478 if ((event->header.type < PERF_RECORD_MMAP ||
479 event->header.type > PERF_RECORD_SAMPLE) &&
480 !(event->header.type == PERF_RECORD_SWITCH ||
481 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
482 return NULL;
483
484 ptype = pyrf_event__type[event->header.type];
485 pevent = PyObject_New(struct pyrf_event, ptype);
486 if (pevent != NULL)
487 memcpy(&pevent->event, event, event->header.size);
488 return (PyObject *)pevent;
489}
490
491struct pyrf_cpu_map {
492 PyObject_HEAD
493
494 struct cpu_map *cpus;
495};
496
497static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
498 PyObject *args, PyObject *kwargs)
499{
500 static char *kwlist[] = { "cpustr", NULL };
501 char *cpustr = NULL;
502
503 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
504 kwlist, &cpustr))
505 return -1;
506
507 pcpus->cpus = cpu_map__new(cpustr);
508 if (pcpus->cpus == NULL)
509 return -1;
510 return 0;
511}
512
513static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
514{
515 cpu_map__put(pcpus->cpus);
516 pcpus->ob_type->tp_free((PyObject*)pcpus);
517}
518
519static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
520{
521 struct pyrf_cpu_map *pcpus = (void *)obj;
522
523 return pcpus->cpus->nr;
524}
525
526static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
527{
528 struct pyrf_cpu_map *pcpus = (void *)obj;
529
530 if (i >= pcpus->cpus->nr)
531 return NULL;
532
533 return Py_BuildValue("i", pcpus->cpus->map[i]);
534}
535
536static PySequenceMethods pyrf_cpu_map__sequence_methods = {
537 .sq_length = pyrf_cpu_map__length,
538 .sq_item = pyrf_cpu_map__item,
539};
540
541static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
542
543static PyTypeObject pyrf_cpu_map__type = {
544 PyVarObject_HEAD_INIT(NULL, 0)
545 .tp_name = "perf.cpu_map",
546 .tp_basicsize = sizeof(struct pyrf_cpu_map),
547 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
548 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
549 .tp_doc = pyrf_cpu_map__doc,
550 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
551 .tp_init = (initproc)pyrf_cpu_map__init,
552};
553
554static int pyrf_cpu_map__setup_types(void)
555{
556 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
557 return PyType_Ready(&pyrf_cpu_map__type);
558}
559
560struct pyrf_thread_map {
561 PyObject_HEAD
562
563 struct thread_map *threads;
564};
565
566static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
567 PyObject *args, PyObject *kwargs)
568{
569 static char *kwlist[] = { "pid", "tid", "uid", NULL };
570 int pid = -1, tid = -1, uid = UINT_MAX;
571
572 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
573 kwlist, &pid, &tid, &uid))
574 return -1;
575
576 pthreads->threads = thread_map__new(pid, tid, uid);
577 if (pthreads->threads == NULL)
578 return -1;
579 return 0;
580}
581
582static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
583{
584 thread_map__put(pthreads->threads);
585 pthreads->ob_type->tp_free((PyObject*)pthreads);
586}
587
588static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
589{
590 struct pyrf_thread_map *pthreads = (void *)obj;
591
592 return pthreads->threads->nr;
593}
594
595static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
596{
597 struct pyrf_thread_map *pthreads = (void *)obj;
598
599 if (i >= pthreads->threads->nr)
600 return NULL;
601
602 return Py_BuildValue("i", pthreads->threads->map[i]);
603}
604
605static PySequenceMethods pyrf_thread_map__sequence_methods = {
606 .sq_length = pyrf_thread_map__length,
607 .sq_item = pyrf_thread_map__item,
608};
609
610static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
611
612static PyTypeObject pyrf_thread_map__type = {
613 PyVarObject_HEAD_INIT(NULL, 0)
614 .tp_name = "perf.thread_map",
615 .tp_basicsize = sizeof(struct pyrf_thread_map),
616 .tp_dealloc = (destructor)pyrf_thread_map__delete,
617 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
618 .tp_doc = pyrf_thread_map__doc,
619 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
620 .tp_init = (initproc)pyrf_thread_map__init,
621};
622
623static int pyrf_thread_map__setup_types(void)
624{
625 pyrf_thread_map__type.tp_new = PyType_GenericNew;
626 return PyType_Ready(&pyrf_thread_map__type);
627}
628
629struct pyrf_evsel {
630 PyObject_HEAD
631
632 struct perf_evsel evsel;
633};
634
635static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
636 PyObject *args, PyObject *kwargs)
637{
638 struct perf_event_attr attr = {
639 .type = PERF_TYPE_HARDWARE,
640 .config = PERF_COUNT_HW_CPU_CYCLES,
641 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
642 };
643 static char *kwlist[] = {
644 "type",
645 "config",
646 "sample_freq",
647 "sample_period",
648 "sample_type",
649 "read_format",
650 "disabled",
651 "inherit",
652 "pinned",
653 "exclusive",
654 "exclude_user",
655 "exclude_kernel",
656 "exclude_hv",
657 "exclude_idle",
658 "mmap",
659 "context_switch",
660 "comm",
661 "freq",
662 "inherit_stat",
663 "enable_on_exec",
664 "task",
665 "watermark",
666 "precise_ip",
667 "mmap_data",
668 "sample_id_all",
669 "wakeup_events",
670 "bp_type",
671 "bp_addr",
672 "bp_len",
673 NULL
674 };
675 u64 sample_period = 0;
676 u32 disabled = 0,
677 inherit = 0,
678 pinned = 0,
679 exclusive = 0,
680 exclude_user = 0,
681 exclude_kernel = 0,
682 exclude_hv = 0,
683 exclude_idle = 0,
684 mmap = 0,
685 context_switch = 0,
686 comm = 0,
687 freq = 1,
688 inherit_stat = 0,
689 enable_on_exec = 0,
690 task = 0,
691 watermark = 0,
692 precise_ip = 0,
693 mmap_data = 0,
694 sample_id_all = 1;
695 int idx = 0;
696
697 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
698 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
699 &attr.type, &attr.config, &attr.sample_freq,
700 &sample_period, &attr.sample_type,
701 &attr.read_format, &disabled, &inherit,
702 &pinned, &exclusive, &exclude_user,
703 &exclude_kernel, &exclude_hv, &exclude_idle,
704 &mmap, &context_switch, &comm, &freq, &inherit_stat,
705 &enable_on_exec, &task, &watermark,
706 &precise_ip, &mmap_data, &sample_id_all,
707 &attr.wakeup_events, &attr.bp_type,
708 &attr.bp_addr, &attr.bp_len, &idx))
709 return -1;
710
711 /* union... */
712 if (sample_period != 0) {
713 if (attr.sample_freq != 0)
714 return -1; /* FIXME: throw right exception */
715 attr.sample_period = sample_period;
716 }
717
718 /* Bitfields */
719 attr.disabled = disabled;
720 attr.inherit = inherit;
721 attr.pinned = pinned;
722 attr.exclusive = exclusive;
723 attr.exclude_user = exclude_user;
724 attr.exclude_kernel = exclude_kernel;
725 attr.exclude_hv = exclude_hv;
726 attr.exclude_idle = exclude_idle;
727 attr.mmap = mmap;
728 attr.context_switch = context_switch;
729 attr.comm = comm;
730 attr.freq = freq;
731 attr.inherit_stat = inherit_stat;
732 attr.enable_on_exec = enable_on_exec;
733 attr.task = task;
734 attr.watermark = watermark;
735 attr.precise_ip = precise_ip;
736 attr.mmap_data = mmap_data;
737 attr.sample_id_all = sample_id_all;
738 attr.size = sizeof(attr);
739
740 perf_evsel__init(&pevsel->evsel, &attr, idx);
741 return 0;
742}
743
744static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
745{
746 perf_evsel__exit(&pevsel->evsel);
747 pevsel->ob_type->tp_free((PyObject*)pevsel);
748}
749
750static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
751 PyObject *args, PyObject *kwargs)
752{
753 struct perf_evsel *evsel = &pevsel->evsel;
754 struct cpu_map *cpus = NULL;
755 struct thread_map *threads = NULL;
756 PyObject *pcpus = NULL, *pthreads = NULL;
757 int group = 0, inherit = 0;
758 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
759
760 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
761 &pcpus, &pthreads, &group, &inherit))
762 return NULL;
763
764 if (pthreads != NULL)
765 threads = ((struct pyrf_thread_map *)pthreads)->threads;
766
767 if (pcpus != NULL)
768 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
769
770 evsel->attr.inherit = inherit;
771 /*
772 * This will group just the fds for this single evsel, to group
773 * multiple events, use evlist.open().
774 */
775 if (perf_evsel__open(evsel, cpus, threads) < 0) {
776 PyErr_SetFromErrno(PyExc_OSError);
777 return NULL;
778 }
779
780 Py_INCREF(Py_None);
781 return Py_None;
782}
783
784static PyMethodDef pyrf_evsel__methods[] = {
785 {
786 .ml_name = "open",
787 .ml_meth = (PyCFunction)pyrf_evsel__open,
788 .ml_flags = METH_VARARGS | METH_KEYWORDS,
789 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
790 },
791 { .ml_name = NULL, }
792};
793
794static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
795
796static PyTypeObject pyrf_evsel__type = {
797 PyVarObject_HEAD_INIT(NULL, 0)
798 .tp_name = "perf.evsel",
799 .tp_basicsize = sizeof(struct pyrf_evsel),
800 .tp_dealloc = (destructor)pyrf_evsel__delete,
801 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
802 .tp_doc = pyrf_evsel__doc,
803 .tp_methods = pyrf_evsel__methods,
804 .tp_init = (initproc)pyrf_evsel__init,
805};
806
807static int pyrf_evsel__setup_types(void)
808{
809 pyrf_evsel__type.tp_new = PyType_GenericNew;
810 return PyType_Ready(&pyrf_evsel__type);
811}
812
813struct pyrf_evlist {
814 PyObject_HEAD
815
816 struct perf_evlist evlist;
817};
818
819static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
820 PyObject *args, PyObject *kwargs __maybe_unused)
821{
822 PyObject *pcpus = NULL, *pthreads = NULL;
823 struct cpu_map *cpus;
824 struct thread_map *threads;
825
826 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
827 return -1;
828
829 threads = ((struct pyrf_thread_map *)pthreads)->threads;
830 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
831 perf_evlist__init(&pevlist->evlist, cpus, threads);
832 return 0;
833}
834
835static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
836{
837 perf_evlist__exit(&pevlist->evlist);
838 pevlist->ob_type->tp_free((PyObject*)pevlist);
839}
840
841static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
842 PyObject *args, PyObject *kwargs)
843{
844 struct perf_evlist *evlist = &pevlist->evlist;
845 static char *kwlist[] = { "pages", "overwrite", NULL };
846 int pages = 128, overwrite = false;
847
848 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
849 &pages, &overwrite))
850 return NULL;
851
852 if (perf_evlist__mmap(evlist, pages, overwrite) < 0) {
853 PyErr_SetFromErrno(PyExc_OSError);
854 return NULL;
855 }
856
857 Py_INCREF(Py_None);
858 return Py_None;
859}
860
861static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
862 PyObject *args, PyObject *kwargs)
863{
864 struct perf_evlist *evlist = &pevlist->evlist;
865 static char *kwlist[] = { "timeout", NULL };
866 int timeout = -1, n;
867
868 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
869 return NULL;
870
871 n = perf_evlist__poll(evlist, timeout);
872 if (n < 0) {
873 PyErr_SetFromErrno(PyExc_OSError);
874 return NULL;
875 }
876
877 return Py_BuildValue("i", n);
878}
879
880static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
881 PyObject *args __maybe_unused,
882 PyObject *kwargs __maybe_unused)
883{
884 struct perf_evlist *evlist = &pevlist->evlist;
885 PyObject *list = PyList_New(0);
886 int i;
887
888 for (i = 0; i < evlist->pollfd.nr; ++i) {
889 PyObject *file;
890 FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r");
891
892 if (fp == NULL)
893 goto free_list;
894
895 file = PyFile_FromFile(fp, "perf", "r", NULL);
896 if (file == NULL)
897 goto free_list;
898
899 if (PyList_Append(list, file) != 0) {
900 Py_DECREF(file);
901 goto free_list;
902 }
903
904 Py_DECREF(file);
905 }
906
907 return list;
908free_list:
909 return PyErr_NoMemory();
910}
911
912
913static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
914 PyObject *args,
915 PyObject *kwargs __maybe_unused)
916{
917 struct perf_evlist *evlist = &pevlist->evlist;
918 PyObject *pevsel;
919 struct perf_evsel *evsel;
920
921 if (!PyArg_ParseTuple(args, "O", &pevsel))
922 return NULL;
923
924 Py_INCREF(pevsel);
925 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
926 evsel->idx = evlist->nr_entries;
927 perf_evlist__add(evlist, evsel);
928
929 return Py_BuildValue("i", evlist->nr_entries);
930}
931
932static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
933 PyObject *args, PyObject *kwargs)
934{
935 struct perf_evlist *evlist = &pevlist->evlist;
936 union perf_event *event;
937 int sample_id_all = 1, cpu;
938 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
939 int err;
940
941 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
942 &cpu, &sample_id_all))
943 return NULL;
944
945 event = perf_evlist__mmap_read(evlist, cpu);
946 if (event != NULL) {
947 PyObject *pyevent = pyrf_event__new(event);
948 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
949 struct perf_evsel *evsel;
950
951 if (pyevent == NULL)
952 return PyErr_NoMemory();
953
954 evsel = perf_evlist__event2evsel(evlist, event);
955 if (!evsel)
956 return Py_None;
957
958 pevent->evsel = evsel;
959
960 err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
961
962 /* Consume the even only after we parsed it out. */
963 perf_evlist__mmap_consume(evlist, cpu);
964
965 if (err)
966 return PyErr_Format(PyExc_OSError,
967 "perf: can't parse sample, err=%d", err);
968 return pyevent;
969 }
970
971 Py_INCREF(Py_None);
972 return Py_None;
973}
974
975static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
976 PyObject *args, PyObject *kwargs)
977{
978 struct perf_evlist *evlist = &pevlist->evlist;
979 int group = 0;
980 static char *kwlist[] = { "group", NULL };
981
982 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
983 return NULL;
984
985 if (group)
986 perf_evlist__set_leader(evlist);
987
988 if (perf_evlist__open(evlist) < 0) {
989 PyErr_SetFromErrno(PyExc_OSError);
990 return NULL;
991 }
992
993 Py_INCREF(Py_None);
994 return Py_None;
995}
996
997static PyMethodDef pyrf_evlist__methods[] = {
998 {
999 .ml_name = "mmap",
1000 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1001 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1002 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1003 },
1004 {
1005 .ml_name = "open",
1006 .ml_meth = (PyCFunction)pyrf_evlist__open,
1007 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1008 .ml_doc = PyDoc_STR("open the file descriptors.")
1009 },
1010 {
1011 .ml_name = "poll",
1012 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1013 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1014 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1015 },
1016 {
1017 .ml_name = "get_pollfd",
1018 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1019 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1020 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1021 },
1022 {
1023 .ml_name = "add",
1024 .ml_meth = (PyCFunction)pyrf_evlist__add,
1025 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1026 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1027 },
1028 {
1029 .ml_name = "read_on_cpu",
1030 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1031 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1032 .ml_doc = PyDoc_STR("reads an event.")
1033 },
1034 { .ml_name = NULL, }
1035};
1036
1037static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1038{
1039 struct pyrf_evlist *pevlist = (void *)obj;
1040
1041 return pevlist->evlist.nr_entries;
1042}
1043
1044static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1045{
1046 struct pyrf_evlist *pevlist = (void *)obj;
1047 struct perf_evsel *pos;
1048
1049 if (i >= pevlist->evlist.nr_entries)
1050 return NULL;
1051
1052 evlist__for_each_entry(&pevlist->evlist, pos) {
1053 if (i-- == 0)
1054 break;
1055 }
1056
1057 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1058}
1059
1060static PySequenceMethods pyrf_evlist__sequence_methods = {
1061 .sq_length = pyrf_evlist__length,
1062 .sq_item = pyrf_evlist__item,
1063};
1064
1065static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1066
1067static PyTypeObject pyrf_evlist__type = {
1068 PyVarObject_HEAD_INIT(NULL, 0)
1069 .tp_name = "perf.evlist",
1070 .tp_basicsize = sizeof(struct pyrf_evlist),
1071 .tp_dealloc = (destructor)pyrf_evlist__delete,
1072 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1073 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1074 .tp_doc = pyrf_evlist__doc,
1075 .tp_methods = pyrf_evlist__methods,
1076 .tp_init = (initproc)pyrf_evlist__init,
1077};
1078
1079static int pyrf_evlist__setup_types(void)
1080{
1081 pyrf_evlist__type.tp_new = PyType_GenericNew;
1082 return PyType_Ready(&pyrf_evlist__type);
1083}
1084
1085#define PERF_CONST(name) { #name, PERF_##name }
1086
1087static struct {
1088 const char *name;
1089 int value;
1090} perf__constants[] = {
1091 PERF_CONST(TYPE_HARDWARE),
1092 PERF_CONST(TYPE_SOFTWARE),
1093 PERF_CONST(TYPE_TRACEPOINT),
1094 PERF_CONST(TYPE_HW_CACHE),
1095 PERF_CONST(TYPE_RAW),
1096 PERF_CONST(TYPE_BREAKPOINT),
1097
1098 PERF_CONST(COUNT_HW_CPU_CYCLES),
1099 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1100 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1101 PERF_CONST(COUNT_HW_CACHE_MISSES),
1102 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1103 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1104 PERF_CONST(COUNT_HW_BUS_CYCLES),
1105 PERF_CONST(COUNT_HW_CACHE_L1D),
1106 PERF_CONST(COUNT_HW_CACHE_L1I),
1107 PERF_CONST(COUNT_HW_CACHE_LL),
1108 PERF_CONST(COUNT_HW_CACHE_DTLB),
1109 PERF_CONST(COUNT_HW_CACHE_ITLB),
1110 PERF_CONST(COUNT_HW_CACHE_BPU),
1111 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1112 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1113 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1114 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1115 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1116
1117 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1118 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1119
1120 PERF_CONST(COUNT_SW_CPU_CLOCK),
1121 PERF_CONST(COUNT_SW_TASK_CLOCK),
1122 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1123 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1124 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1125 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1126 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1127 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1128 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1129 PERF_CONST(COUNT_SW_DUMMY),
1130
1131 PERF_CONST(SAMPLE_IP),
1132 PERF_CONST(SAMPLE_TID),
1133 PERF_CONST(SAMPLE_TIME),
1134 PERF_CONST(SAMPLE_ADDR),
1135 PERF_CONST(SAMPLE_READ),
1136 PERF_CONST(SAMPLE_CALLCHAIN),
1137 PERF_CONST(SAMPLE_ID),
1138 PERF_CONST(SAMPLE_CPU),
1139 PERF_CONST(SAMPLE_PERIOD),
1140 PERF_CONST(SAMPLE_STREAM_ID),
1141 PERF_CONST(SAMPLE_RAW),
1142
1143 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1144 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1145 PERF_CONST(FORMAT_ID),
1146 PERF_CONST(FORMAT_GROUP),
1147
1148 PERF_CONST(RECORD_MMAP),
1149 PERF_CONST(RECORD_LOST),
1150 PERF_CONST(RECORD_COMM),
1151 PERF_CONST(RECORD_EXIT),
1152 PERF_CONST(RECORD_THROTTLE),
1153 PERF_CONST(RECORD_UNTHROTTLE),
1154 PERF_CONST(RECORD_FORK),
1155 PERF_CONST(RECORD_READ),
1156 PERF_CONST(RECORD_SAMPLE),
1157 PERF_CONST(RECORD_MMAP2),
1158 PERF_CONST(RECORD_AUX),
1159 PERF_CONST(RECORD_ITRACE_START),
1160 PERF_CONST(RECORD_LOST_SAMPLES),
1161 PERF_CONST(RECORD_SWITCH),
1162 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1163
1164 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1165 { .name = NULL, },
1166};
1167
1168static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1169 PyObject *args, PyObject *kwargs)
1170{
1171 struct event_format *tp_format;
1172 static char *kwlist[] = { "sys", "name", NULL };
1173 char *sys = NULL;
1174 char *name = NULL;
1175
1176 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1177 &sys, &name))
1178 return NULL;
1179
1180 tp_format = trace_event__tp_format(sys, name);
1181 if (IS_ERR(tp_format))
1182 return PyInt_FromLong(-1);
1183
1184 return PyInt_FromLong(tp_format->id);
1185}
1186
1187static PyMethodDef perf__methods[] = {
1188 {
1189 .ml_name = "tracepoint",
1190 .ml_meth = (PyCFunction) pyrf__tracepoint,
1191 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1192 .ml_doc = PyDoc_STR("Get tracepoint config.")
1193 },
1194 { .ml_name = NULL, }
1195};
1196
1197PyMODINIT_FUNC initperf(void)
1198{
1199 PyObject *obj;
1200 int i;
1201 PyObject *dict, *module = Py_InitModule("perf", perf__methods);
1202
1203 if (module == NULL ||
1204 pyrf_event__setup_types() < 0 ||
1205 pyrf_evlist__setup_types() < 0 ||
1206 pyrf_evsel__setup_types() < 0 ||
1207 pyrf_thread_map__setup_types() < 0 ||
1208 pyrf_cpu_map__setup_types() < 0)
1209 return;
1210
1211 /* The page_size is placed in util object. */
1212 page_size = sysconf(_SC_PAGE_SIZE);
1213
1214 Py_INCREF(&pyrf_evlist__type);
1215 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1216
1217 Py_INCREF(&pyrf_evsel__type);
1218 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1219
1220 Py_INCREF(&pyrf_mmap_event__type);
1221 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1222
1223 Py_INCREF(&pyrf_lost_event__type);
1224 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1225
1226 Py_INCREF(&pyrf_comm_event__type);
1227 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1228
1229 Py_INCREF(&pyrf_task_event__type);
1230 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1231
1232 Py_INCREF(&pyrf_throttle_event__type);
1233 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1234
1235 Py_INCREF(&pyrf_task_event__type);
1236 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1237
1238 Py_INCREF(&pyrf_read_event__type);
1239 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1240
1241 Py_INCREF(&pyrf_sample_event__type);
1242 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1243
1244 Py_INCREF(&pyrf_context_switch_event__type);
1245 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1246
1247 Py_INCREF(&pyrf_thread_map__type);
1248 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1249
1250 Py_INCREF(&pyrf_cpu_map__type);
1251 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1252
1253 dict = PyModule_GetDict(module);
1254 if (dict == NULL)
1255 goto error;
1256
1257 for (i = 0; perf__constants[i].name != NULL; i++) {
1258 obj = PyInt_FromLong(perf__constants[i].value);
1259 if (obj == NULL)
1260 goto error;
1261 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1262 Py_DECREF(obj);
1263 }
1264
1265error:
1266 if (PyErr_Occurred())
1267 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1268}
1269
1270/*
1271 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1272 * binding.
1273 */
1274void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1275 int fd, int group_fd, unsigned long flags)
1276{
1277}