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