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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 <perf/cpumap.h>
8#ifdef HAVE_LIBTRACEEVENT
9#include <event-parse.h>
10#endif
11#include <perf/mmap.h>
12#include "evlist.h"
13#include "evsel.h"
14#include "event.h"
15#include "print_binary.h"
16#include "thread_map.h"
17#include "trace-event.h"
18#include "mmap.h"
19#include "util/bpf-filter.h"
20#include "util/env.h"
21#include "util/kvm-stat.h"
22#include "util/stat.h"
23#include "util/kwork.h"
24#include "util/sample.h"
25#include "util/lock-contention.h"
26#include <internal/lib.h>
27#include "../builtin.h"
28
29#if PY_MAJOR_VERSION < 3
30#define _PyUnicode_FromString(arg) \
31 PyString_FromString(arg)
32#define _PyUnicode_AsString(arg) \
33 PyString_AsString(arg)
34#define _PyUnicode_FromFormat(...) \
35 PyString_FromFormat(__VA_ARGS__)
36#define _PyLong_FromLong(arg) \
37 PyInt_FromLong(arg)
38
39#else
40
41#define _PyUnicode_FromString(arg) \
42 PyUnicode_FromString(arg)
43#define _PyUnicode_FromFormat(...) \
44 PyUnicode_FromFormat(__VA_ARGS__)
45#define _PyLong_FromLong(arg) \
46 PyLong_FromLong(arg)
47#endif
48
49#ifndef Py_TYPE
50#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
51#endif
52
53/* Define PyVarObject_HEAD_INIT for python 2.5 */
54#ifndef PyVarObject_HEAD_INIT
55# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
56#endif
57
58#if PY_MAJOR_VERSION < 3
59PyMODINIT_FUNC initperf(void);
60#else
61PyMODINIT_FUNC PyInit_perf(void);
62#endif
63
64#define member_def(type, member, ptype, help) \
65 { #member, ptype, \
66 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
67 0, help }
68
69#define sample_member_def(name, member, ptype, help) \
70 { #name, ptype, \
71 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
72 0, help }
73
74struct pyrf_event {
75 PyObject_HEAD
76 struct evsel *evsel;
77 struct perf_sample sample;
78 union perf_event event;
79};
80
81#define sample_members \
82 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
83 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
84 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
85 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
86 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
87 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
88 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
89 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
90 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
91
92static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
93
94static PyMemberDef pyrf_mmap_event__members[] = {
95 sample_members
96 member_def(perf_event_header, type, T_UINT, "event type"),
97 member_def(perf_event_header, misc, T_UINT, "event misc"),
98 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
99 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
100 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
101 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
102 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
103 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
104 { .name = NULL, },
105};
106
107static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
108{
109 PyObject *ret;
110 char *s;
111
112 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
113 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
114 "filename: %s }",
115 pevent->event.mmap.pid, pevent->event.mmap.tid,
116 pevent->event.mmap.start, pevent->event.mmap.len,
117 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
118 ret = PyErr_NoMemory();
119 } else {
120 ret = _PyUnicode_FromString(s);
121 free(s);
122 }
123 return ret;
124}
125
126static PyTypeObject pyrf_mmap_event__type = {
127 PyVarObject_HEAD_INIT(NULL, 0)
128 .tp_name = "perf.mmap_event",
129 .tp_basicsize = sizeof(struct pyrf_event),
130 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
131 .tp_doc = pyrf_mmap_event__doc,
132 .tp_members = pyrf_mmap_event__members,
133 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
134};
135
136static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
137
138static PyMemberDef pyrf_task_event__members[] = {
139 sample_members
140 member_def(perf_event_header, type, T_UINT, "event type"),
141 member_def(perf_record_fork, pid, T_UINT, "event pid"),
142 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
143 member_def(perf_record_fork, tid, T_UINT, "event tid"),
144 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
145 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
146 { .name = NULL, },
147};
148
149static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
150{
151 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
152 "ptid: %u, time: %" PRI_lu64 "}",
153 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
154 pevent->event.fork.pid,
155 pevent->event.fork.ppid,
156 pevent->event.fork.tid,
157 pevent->event.fork.ptid,
158 pevent->event.fork.time);
159}
160
161static PyTypeObject pyrf_task_event__type = {
162 PyVarObject_HEAD_INIT(NULL, 0)
163 .tp_name = "perf.task_event",
164 .tp_basicsize = sizeof(struct pyrf_event),
165 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
166 .tp_doc = pyrf_task_event__doc,
167 .tp_members = pyrf_task_event__members,
168 .tp_repr = (reprfunc)pyrf_task_event__repr,
169};
170
171static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
172
173static PyMemberDef pyrf_comm_event__members[] = {
174 sample_members
175 member_def(perf_event_header, type, T_UINT, "event type"),
176 member_def(perf_record_comm, pid, T_UINT, "event pid"),
177 member_def(perf_record_comm, tid, T_UINT, "event tid"),
178 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
179 { .name = NULL, },
180};
181
182static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
183{
184 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
185 pevent->event.comm.pid,
186 pevent->event.comm.tid,
187 pevent->event.comm.comm);
188}
189
190static PyTypeObject pyrf_comm_event__type = {
191 PyVarObject_HEAD_INIT(NULL, 0)
192 .tp_name = "perf.comm_event",
193 .tp_basicsize = sizeof(struct pyrf_event),
194 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
195 .tp_doc = pyrf_comm_event__doc,
196 .tp_members = pyrf_comm_event__members,
197 .tp_repr = (reprfunc)pyrf_comm_event__repr,
198};
199
200static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
201
202static PyMemberDef pyrf_throttle_event__members[] = {
203 sample_members
204 member_def(perf_event_header, type, T_UINT, "event type"),
205 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
206 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
207 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
208 { .name = NULL, },
209};
210
211static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
212{
213 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
214
215 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
216 ", stream_id: %" PRI_lu64 " }",
217 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
218 te->time, te->id, te->stream_id);
219}
220
221static PyTypeObject pyrf_throttle_event__type = {
222 PyVarObject_HEAD_INIT(NULL, 0)
223 .tp_name = "perf.throttle_event",
224 .tp_basicsize = sizeof(struct pyrf_event),
225 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
226 .tp_doc = pyrf_throttle_event__doc,
227 .tp_members = pyrf_throttle_event__members,
228 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
229};
230
231static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
232
233static PyMemberDef pyrf_lost_event__members[] = {
234 sample_members
235 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
236 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
237 { .name = NULL, },
238};
239
240static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
241{
242 PyObject *ret;
243 char *s;
244
245 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
246 "lost: %#" PRI_lx64 " }",
247 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
248 ret = PyErr_NoMemory();
249 } else {
250 ret = _PyUnicode_FromString(s);
251 free(s);
252 }
253 return ret;
254}
255
256static PyTypeObject pyrf_lost_event__type = {
257 PyVarObject_HEAD_INIT(NULL, 0)
258 .tp_name = "perf.lost_event",
259 .tp_basicsize = sizeof(struct pyrf_event),
260 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
261 .tp_doc = pyrf_lost_event__doc,
262 .tp_members = pyrf_lost_event__members,
263 .tp_repr = (reprfunc)pyrf_lost_event__repr,
264};
265
266static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
267
268static PyMemberDef pyrf_read_event__members[] = {
269 sample_members
270 member_def(perf_record_read, pid, T_UINT, "event pid"),
271 member_def(perf_record_read, tid, T_UINT, "event tid"),
272 { .name = NULL, },
273};
274
275static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
276{
277 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
278 pevent->event.read.pid,
279 pevent->event.read.tid);
280 /*
281 * FIXME: return the array of read values,
282 * making this method useful ;-)
283 */
284}
285
286static PyTypeObject pyrf_read_event__type = {
287 PyVarObject_HEAD_INIT(NULL, 0)
288 .tp_name = "perf.read_event",
289 .tp_basicsize = sizeof(struct pyrf_event),
290 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
291 .tp_doc = pyrf_read_event__doc,
292 .tp_members = pyrf_read_event__members,
293 .tp_repr = (reprfunc)pyrf_read_event__repr,
294};
295
296static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
297
298static PyMemberDef pyrf_sample_event__members[] = {
299 sample_members
300 member_def(perf_event_header, type, T_UINT, "event type"),
301 { .name = NULL, },
302};
303
304static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
305{
306 PyObject *ret;
307 char *s;
308
309 if (asprintf(&s, "{ type: sample }") < 0) {
310 ret = PyErr_NoMemory();
311 } else {
312 ret = _PyUnicode_FromString(s);
313 free(s);
314 }
315 return ret;
316}
317
318#ifdef HAVE_LIBTRACEEVENT
319static bool is_tracepoint(struct pyrf_event *pevent)
320{
321 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
322}
323
324static PyObject*
325tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
326{
327 struct tep_handle *pevent = field->event->tep;
328 void *data = pe->sample.raw_data;
329 PyObject *ret = NULL;
330 unsigned long long val;
331 unsigned int offset, len;
332
333 if (field->flags & TEP_FIELD_IS_ARRAY) {
334 offset = field->offset;
335 len = field->size;
336 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
337 val = tep_read_number(pevent, data + offset, len);
338 offset = val;
339 len = offset >> 16;
340 offset &= 0xffff;
341 if (tep_field_is_relative(field->flags))
342 offset += field->offset + field->size;
343 }
344 if (field->flags & TEP_FIELD_IS_STRING &&
345 is_printable_array(data + offset, len)) {
346 ret = _PyUnicode_FromString((char *)data + offset);
347 } else {
348 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
349 field->flags &= ~TEP_FIELD_IS_STRING;
350 }
351 } else {
352 val = tep_read_number(pevent, data + field->offset,
353 field->size);
354 if (field->flags & TEP_FIELD_IS_POINTER)
355 ret = PyLong_FromUnsignedLong((unsigned long) val);
356 else if (field->flags & TEP_FIELD_IS_SIGNED)
357 ret = PyLong_FromLong((long) val);
358 else
359 ret = PyLong_FromUnsignedLong((unsigned long) val);
360 }
361
362 return ret;
363}
364
365static PyObject*
366get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
367{
368 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
369 struct evsel *evsel = pevent->evsel;
370 struct tep_format_field *field;
371
372 if (!evsel->tp_format) {
373 struct tep_event *tp_format;
374
375 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
376 if (IS_ERR_OR_NULL(tp_format))
377 return NULL;
378
379 evsel->tp_format = tp_format;
380 }
381
382 field = tep_find_any_field(evsel->tp_format, str);
383 if (!field)
384 return NULL;
385
386 return tracepoint_field(pevent, field);
387}
388#endif /* HAVE_LIBTRACEEVENT */
389
390static PyObject*
391pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
392{
393 PyObject *obj = NULL;
394
395#ifdef HAVE_LIBTRACEEVENT
396 if (is_tracepoint(pevent))
397 obj = get_tracepoint_field(pevent, attr_name);
398#endif
399
400 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
401}
402
403static PyTypeObject pyrf_sample_event__type = {
404 PyVarObject_HEAD_INIT(NULL, 0)
405 .tp_name = "perf.sample_event",
406 .tp_basicsize = sizeof(struct pyrf_event),
407 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
408 .tp_doc = pyrf_sample_event__doc,
409 .tp_members = pyrf_sample_event__members,
410 .tp_repr = (reprfunc)pyrf_sample_event__repr,
411 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
412};
413
414static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
415
416static PyMemberDef pyrf_context_switch_event__members[] = {
417 sample_members
418 member_def(perf_event_header, type, T_UINT, "event type"),
419 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
420 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
421 { .name = NULL, },
422};
423
424static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
425{
426 PyObject *ret;
427 char *s;
428
429 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
430 pevent->event.context_switch.next_prev_pid,
431 pevent->event.context_switch.next_prev_tid,
432 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
433 ret = PyErr_NoMemory();
434 } else {
435 ret = _PyUnicode_FromString(s);
436 free(s);
437 }
438 return ret;
439}
440
441static PyTypeObject pyrf_context_switch_event__type = {
442 PyVarObject_HEAD_INIT(NULL, 0)
443 .tp_name = "perf.context_switch_event",
444 .tp_basicsize = sizeof(struct pyrf_event),
445 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
446 .tp_doc = pyrf_context_switch_event__doc,
447 .tp_members = pyrf_context_switch_event__members,
448 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
449};
450
451static int pyrf_event__setup_types(void)
452{
453 int err;
454 pyrf_mmap_event__type.tp_new =
455 pyrf_task_event__type.tp_new =
456 pyrf_comm_event__type.tp_new =
457 pyrf_lost_event__type.tp_new =
458 pyrf_read_event__type.tp_new =
459 pyrf_sample_event__type.tp_new =
460 pyrf_context_switch_event__type.tp_new =
461 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
462 err = PyType_Ready(&pyrf_mmap_event__type);
463 if (err < 0)
464 goto out;
465 err = PyType_Ready(&pyrf_lost_event__type);
466 if (err < 0)
467 goto out;
468 err = PyType_Ready(&pyrf_task_event__type);
469 if (err < 0)
470 goto out;
471 err = PyType_Ready(&pyrf_comm_event__type);
472 if (err < 0)
473 goto out;
474 err = PyType_Ready(&pyrf_throttle_event__type);
475 if (err < 0)
476 goto out;
477 err = PyType_Ready(&pyrf_read_event__type);
478 if (err < 0)
479 goto out;
480 err = PyType_Ready(&pyrf_sample_event__type);
481 if (err < 0)
482 goto out;
483 err = PyType_Ready(&pyrf_context_switch_event__type);
484 if (err < 0)
485 goto out;
486out:
487 return err;
488}
489
490static PyTypeObject *pyrf_event__type[] = {
491 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
492 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
493 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
494 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
495 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
496 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
497 [PERF_RECORD_FORK] = &pyrf_task_event__type,
498 [PERF_RECORD_READ] = &pyrf_read_event__type,
499 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
500 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
501 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
502};
503
504static PyObject *pyrf_event__new(union perf_event *event)
505{
506 struct pyrf_event *pevent;
507 PyTypeObject *ptype;
508
509 if ((event->header.type < PERF_RECORD_MMAP ||
510 event->header.type > PERF_RECORD_SAMPLE) &&
511 !(event->header.type == PERF_RECORD_SWITCH ||
512 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
513 return NULL;
514
515 ptype = pyrf_event__type[event->header.type];
516 pevent = PyObject_New(struct pyrf_event, ptype);
517 if (pevent != NULL)
518 memcpy(&pevent->event, event, event->header.size);
519 return (PyObject *)pevent;
520}
521
522struct pyrf_cpu_map {
523 PyObject_HEAD
524
525 struct perf_cpu_map *cpus;
526};
527
528static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
529 PyObject *args, PyObject *kwargs)
530{
531 static char *kwlist[] = { "cpustr", NULL };
532 char *cpustr = NULL;
533
534 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
535 kwlist, &cpustr))
536 return -1;
537
538 pcpus->cpus = perf_cpu_map__new(cpustr);
539 if (pcpus->cpus == NULL)
540 return -1;
541 return 0;
542}
543
544static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
545{
546 perf_cpu_map__put(pcpus->cpus);
547 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
548}
549
550static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
551{
552 struct pyrf_cpu_map *pcpus = (void *)obj;
553
554 return perf_cpu_map__nr(pcpus->cpus);
555}
556
557static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
558{
559 struct pyrf_cpu_map *pcpus = (void *)obj;
560
561 if (i >= perf_cpu_map__nr(pcpus->cpus))
562 return NULL;
563
564 return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
565}
566
567static PySequenceMethods pyrf_cpu_map__sequence_methods = {
568 .sq_length = pyrf_cpu_map__length,
569 .sq_item = pyrf_cpu_map__item,
570};
571
572static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
573
574static PyTypeObject pyrf_cpu_map__type = {
575 PyVarObject_HEAD_INIT(NULL, 0)
576 .tp_name = "perf.cpu_map",
577 .tp_basicsize = sizeof(struct pyrf_cpu_map),
578 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
579 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
580 .tp_doc = pyrf_cpu_map__doc,
581 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
582 .tp_init = (initproc)pyrf_cpu_map__init,
583};
584
585static int pyrf_cpu_map__setup_types(void)
586{
587 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
588 return PyType_Ready(&pyrf_cpu_map__type);
589}
590
591struct pyrf_thread_map {
592 PyObject_HEAD
593
594 struct perf_thread_map *threads;
595};
596
597static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
598 PyObject *args, PyObject *kwargs)
599{
600 static char *kwlist[] = { "pid", "tid", "uid", NULL };
601 int pid = -1, tid = -1, uid = UINT_MAX;
602
603 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
604 kwlist, &pid, &tid, &uid))
605 return -1;
606
607 pthreads->threads = thread_map__new(pid, tid, uid);
608 if (pthreads->threads == NULL)
609 return -1;
610 return 0;
611}
612
613static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
614{
615 perf_thread_map__put(pthreads->threads);
616 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
617}
618
619static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
620{
621 struct pyrf_thread_map *pthreads = (void *)obj;
622
623 return perf_thread_map__nr(pthreads->threads);
624}
625
626static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
627{
628 struct pyrf_thread_map *pthreads = (void *)obj;
629
630 if (i >= perf_thread_map__nr(pthreads->threads))
631 return NULL;
632
633 return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
634}
635
636static PySequenceMethods pyrf_thread_map__sequence_methods = {
637 .sq_length = pyrf_thread_map__length,
638 .sq_item = pyrf_thread_map__item,
639};
640
641static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
642
643static PyTypeObject pyrf_thread_map__type = {
644 PyVarObject_HEAD_INIT(NULL, 0)
645 .tp_name = "perf.thread_map",
646 .tp_basicsize = sizeof(struct pyrf_thread_map),
647 .tp_dealloc = (destructor)pyrf_thread_map__delete,
648 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
649 .tp_doc = pyrf_thread_map__doc,
650 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
651 .tp_init = (initproc)pyrf_thread_map__init,
652};
653
654static int pyrf_thread_map__setup_types(void)
655{
656 pyrf_thread_map__type.tp_new = PyType_GenericNew;
657 return PyType_Ready(&pyrf_thread_map__type);
658}
659
660struct pyrf_evsel {
661 PyObject_HEAD
662
663 struct evsel evsel;
664};
665
666static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
667 PyObject *args, PyObject *kwargs)
668{
669 struct perf_event_attr attr = {
670 .type = PERF_TYPE_HARDWARE,
671 .config = PERF_COUNT_HW_CPU_CYCLES,
672 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
673 };
674 static char *kwlist[] = {
675 "type",
676 "config",
677 "sample_freq",
678 "sample_period",
679 "sample_type",
680 "read_format",
681 "disabled",
682 "inherit",
683 "pinned",
684 "exclusive",
685 "exclude_user",
686 "exclude_kernel",
687 "exclude_hv",
688 "exclude_idle",
689 "mmap",
690 "context_switch",
691 "comm",
692 "freq",
693 "inherit_stat",
694 "enable_on_exec",
695 "task",
696 "watermark",
697 "precise_ip",
698 "mmap_data",
699 "sample_id_all",
700 "wakeup_events",
701 "bp_type",
702 "bp_addr",
703 "bp_len",
704 NULL
705 };
706 u64 sample_period = 0;
707 u32 disabled = 0,
708 inherit = 0,
709 pinned = 0,
710 exclusive = 0,
711 exclude_user = 0,
712 exclude_kernel = 0,
713 exclude_hv = 0,
714 exclude_idle = 0,
715 mmap = 0,
716 context_switch = 0,
717 comm = 0,
718 freq = 1,
719 inherit_stat = 0,
720 enable_on_exec = 0,
721 task = 0,
722 watermark = 0,
723 precise_ip = 0,
724 mmap_data = 0,
725 sample_id_all = 1;
726 int idx = 0;
727
728 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
729 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
730 &attr.type, &attr.config, &attr.sample_freq,
731 &sample_period, &attr.sample_type,
732 &attr.read_format, &disabled, &inherit,
733 &pinned, &exclusive, &exclude_user,
734 &exclude_kernel, &exclude_hv, &exclude_idle,
735 &mmap, &context_switch, &comm, &freq, &inherit_stat,
736 &enable_on_exec, &task, &watermark,
737 &precise_ip, &mmap_data, &sample_id_all,
738 &attr.wakeup_events, &attr.bp_type,
739 &attr.bp_addr, &attr.bp_len, &idx))
740 return -1;
741
742 /* union... */
743 if (sample_period != 0) {
744 if (attr.sample_freq != 0)
745 return -1; /* FIXME: throw right exception */
746 attr.sample_period = sample_period;
747 }
748
749 /* Bitfields */
750 attr.disabled = disabled;
751 attr.inherit = inherit;
752 attr.pinned = pinned;
753 attr.exclusive = exclusive;
754 attr.exclude_user = exclude_user;
755 attr.exclude_kernel = exclude_kernel;
756 attr.exclude_hv = exclude_hv;
757 attr.exclude_idle = exclude_idle;
758 attr.mmap = mmap;
759 attr.context_switch = context_switch;
760 attr.comm = comm;
761 attr.freq = freq;
762 attr.inherit_stat = inherit_stat;
763 attr.enable_on_exec = enable_on_exec;
764 attr.task = task;
765 attr.watermark = watermark;
766 attr.precise_ip = precise_ip;
767 attr.mmap_data = mmap_data;
768 attr.sample_id_all = sample_id_all;
769 attr.size = sizeof(attr);
770
771 evsel__init(&pevsel->evsel, &attr, idx);
772 return 0;
773}
774
775static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
776{
777 evsel__exit(&pevsel->evsel);
778 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
779}
780
781static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
782 PyObject *args, PyObject *kwargs)
783{
784 struct evsel *evsel = &pevsel->evsel;
785 struct perf_cpu_map *cpus = NULL;
786 struct perf_thread_map *threads = NULL;
787 PyObject *pcpus = NULL, *pthreads = NULL;
788 int group = 0, inherit = 0;
789 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
790
791 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
792 &pcpus, &pthreads, &group, &inherit))
793 return NULL;
794
795 if (pthreads != NULL)
796 threads = ((struct pyrf_thread_map *)pthreads)->threads;
797
798 if (pcpus != NULL)
799 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
800
801 evsel->core.attr.inherit = inherit;
802 /*
803 * This will group just the fds for this single evsel, to group
804 * multiple events, use evlist.open().
805 */
806 if (evsel__open(evsel, cpus, threads) < 0) {
807 PyErr_SetFromErrno(PyExc_OSError);
808 return NULL;
809 }
810
811 Py_INCREF(Py_None);
812 return Py_None;
813}
814
815static PyMethodDef pyrf_evsel__methods[] = {
816 {
817 .ml_name = "open",
818 .ml_meth = (PyCFunction)pyrf_evsel__open,
819 .ml_flags = METH_VARARGS | METH_KEYWORDS,
820 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
821 },
822 { .ml_name = NULL, }
823};
824
825static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
826
827static PyTypeObject pyrf_evsel__type = {
828 PyVarObject_HEAD_INIT(NULL, 0)
829 .tp_name = "perf.evsel",
830 .tp_basicsize = sizeof(struct pyrf_evsel),
831 .tp_dealloc = (destructor)pyrf_evsel__delete,
832 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
833 .tp_doc = pyrf_evsel__doc,
834 .tp_methods = pyrf_evsel__methods,
835 .tp_init = (initproc)pyrf_evsel__init,
836};
837
838static int pyrf_evsel__setup_types(void)
839{
840 pyrf_evsel__type.tp_new = PyType_GenericNew;
841 return PyType_Ready(&pyrf_evsel__type);
842}
843
844struct pyrf_evlist {
845 PyObject_HEAD
846
847 struct evlist evlist;
848};
849
850static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
851 PyObject *args, PyObject *kwargs __maybe_unused)
852{
853 PyObject *pcpus = NULL, *pthreads = NULL;
854 struct perf_cpu_map *cpus;
855 struct perf_thread_map *threads;
856
857 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
858 return -1;
859
860 threads = ((struct pyrf_thread_map *)pthreads)->threads;
861 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
862 evlist__init(&pevlist->evlist, cpus, threads);
863 return 0;
864}
865
866static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
867{
868 evlist__exit(&pevlist->evlist);
869 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
870}
871
872static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
873 PyObject *args, PyObject *kwargs)
874{
875 struct evlist *evlist = &pevlist->evlist;
876 static char *kwlist[] = { "pages", "overwrite", NULL };
877 int pages = 128, overwrite = false;
878
879 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
880 &pages, &overwrite))
881 return NULL;
882
883 if (evlist__mmap(evlist, pages) < 0) {
884 PyErr_SetFromErrno(PyExc_OSError);
885 return NULL;
886 }
887
888 Py_INCREF(Py_None);
889 return Py_None;
890}
891
892static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
893 PyObject *args, PyObject *kwargs)
894{
895 struct evlist *evlist = &pevlist->evlist;
896 static char *kwlist[] = { "timeout", NULL };
897 int timeout = -1, n;
898
899 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
900 return NULL;
901
902 n = evlist__poll(evlist, timeout);
903 if (n < 0) {
904 PyErr_SetFromErrno(PyExc_OSError);
905 return NULL;
906 }
907
908 return Py_BuildValue("i", n);
909}
910
911static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
912 PyObject *args __maybe_unused,
913 PyObject *kwargs __maybe_unused)
914{
915 struct evlist *evlist = &pevlist->evlist;
916 PyObject *list = PyList_New(0);
917 int i;
918
919 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
920 PyObject *file;
921#if PY_MAJOR_VERSION < 3
922 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
923
924 if (fp == NULL)
925 goto free_list;
926
927 file = PyFile_FromFile(fp, "perf", "r", NULL);
928#else
929 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
930 NULL, NULL, NULL, 0);
931#endif
932 if (file == NULL)
933 goto free_list;
934
935 if (PyList_Append(list, file) != 0) {
936 Py_DECREF(file);
937 goto free_list;
938 }
939
940 Py_DECREF(file);
941 }
942
943 return list;
944free_list:
945 return PyErr_NoMemory();
946}
947
948
949static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
950 PyObject *args,
951 PyObject *kwargs __maybe_unused)
952{
953 struct evlist *evlist = &pevlist->evlist;
954 PyObject *pevsel;
955 struct evsel *evsel;
956
957 if (!PyArg_ParseTuple(args, "O", &pevsel))
958 return NULL;
959
960 Py_INCREF(pevsel);
961 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
962 evsel->core.idx = evlist->core.nr_entries;
963 evlist__add(evlist, evsel);
964
965 return Py_BuildValue("i", evlist->core.nr_entries);
966}
967
968static struct mmap *get_md(struct evlist *evlist, int cpu)
969{
970 int i;
971
972 for (i = 0; i < evlist->core.nr_mmaps; i++) {
973 struct mmap *md = &evlist->mmap[i];
974
975 if (md->core.cpu.cpu == cpu)
976 return md;
977 }
978
979 return NULL;
980}
981
982static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
983 PyObject *args, PyObject *kwargs)
984{
985 struct evlist *evlist = &pevlist->evlist;
986 union perf_event *event;
987 int sample_id_all = 1, cpu;
988 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
989 struct mmap *md;
990 int err;
991
992 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
993 &cpu, &sample_id_all))
994 return NULL;
995
996 md = get_md(evlist, cpu);
997 if (!md)
998 return NULL;
999
1000 if (perf_mmap__read_init(&md->core) < 0)
1001 goto end;
1002
1003 event = perf_mmap__read_event(&md->core);
1004 if (event != NULL) {
1005 PyObject *pyevent = pyrf_event__new(event);
1006 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1007 struct evsel *evsel;
1008
1009 if (pyevent == NULL)
1010 return PyErr_NoMemory();
1011
1012 evsel = evlist__event2evsel(evlist, event);
1013 if (!evsel) {
1014 Py_INCREF(Py_None);
1015 return Py_None;
1016 }
1017
1018 pevent->evsel = evsel;
1019
1020 err = evsel__parse_sample(evsel, event, &pevent->sample);
1021
1022 /* Consume the even only after we parsed it out. */
1023 perf_mmap__consume(&md->core);
1024
1025 if (err)
1026 return PyErr_Format(PyExc_OSError,
1027 "perf: can't parse sample, err=%d", err);
1028 return pyevent;
1029 }
1030end:
1031 Py_INCREF(Py_None);
1032 return Py_None;
1033}
1034
1035static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1036 PyObject *args, PyObject *kwargs)
1037{
1038 struct evlist *evlist = &pevlist->evlist;
1039
1040 if (evlist__open(evlist) < 0) {
1041 PyErr_SetFromErrno(PyExc_OSError);
1042 return NULL;
1043 }
1044
1045 Py_INCREF(Py_None);
1046 return Py_None;
1047}
1048
1049static PyMethodDef pyrf_evlist__methods[] = {
1050 {
1051 .ml_name = "mmap",
1052 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1053 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1054 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1055 },
1056 {
1057 .ml_name = "open",
1058 .ml_meth = (PyCFunction)pyrf_evlist__open,
1059 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1060 .ml_doc = PyDoc_STR("open the file descriptors.")
1061 },
1062 {
1063 .ml_name = "poll",
1064 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1065 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1066 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1067 },
1068 {
1069 .ml_name = "get_pollfd",
1070 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1071 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1072 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1073 },
1074 {
1075 .ml_name = "add",
1076 .ml_meth = (PyCFunction)pyrf_evlist__add,
1077 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1078 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1079 },
1080 {
1081 .ml_name = "read_on_cpu",
1082 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1083 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1084 .ml_doc = PyDoc_STR("reads an event.")
1085 },
1086 { .ml_name = NULL, }
1087};
1088
1089static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1090{
1091 struct pyrf_evlist *pevlist = (void *)obj;
1092
1093 return pevlist->evlist.core.nr_entries;
1094}
1095
1096static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1097{
1098 struct pyrf_evlist *pevlist = (void *)obj;
1099 struct evsel *pos;
1100
1101 if (i >= pevlist->evlist.core.nr_entries)
1102 return NULL;
1103
1104 evlist__for_each_entry(&pevlist->evlist, pos) {
1105 if (i-- == 0)
1106 break;
1107 }
1108
1109 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1110}
1111
1112static PySequenceMethods pyrf_evlist__sequence_methods = {
1113 .sq_length = pyrf_evlist__length,
1114 .sq_item = pyrf_evlist__item,
1115};
1116
1117static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1118
1119static PyTypeObject pyrf_evlist__type = {
1120 PyVarObject_HEAD_INIT(NULL, 0)
1121 .tp_name = "perf.evlist",
1122 .tp_basicsize = sizeof(struct pyrf_evlist),
1123 .tp_dealloc = (destructor)pyrf_evlist__delete,
1124 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1125 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1126 .tp_doc = pyrf_evlist__doc,
1127 .tp_methods = pyrf_evlist__methods,
1128 .tp_init = (initproc)pyrf_evlist__init,
1129};
1130
1131static int pyrf_evlist__setup_types(void)
1132{
1133 pyrf_evlist__type.tp_new = PyType_GenericNew;
1134 return PyType_Ready(&pyrf_evlist__type);
1135}
1136
1137#define PERF_CONST(name) { #name, PERF_##name }
1138
1139static struct {
1140 const char *name;
1141 int value;
1142} perf__constants[] = {
1143 PERF_CONST(TYPE_HARDWARE),
1144 PERF_CONST(TYPE_SOFTWARE),
1145 PERF_CONST(TYPE_TRACEPOINT),
1146 PERF_CONST(TYPE_HW_CACHE),
1147 PERF_CONST(TYPE_RAW),
1148 PERF_CONST(TYPE_BREAKPOINT),
1149
1150 PERF_CONST(COUNT_HW_CPU_CYCLES),
1151 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1152 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1153 PERF_CONST(COUNT_HW_CACHE_MISSES),
1154 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1155 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1156 PERF_CONST(COUNT_HW_BUS_CYCLES),
1157 PERF_CONST(COUNT_HW_CACHE_L1D),
1158 PERF_CONST(COUNT_HW_CACHE_L1I),
1159 PERF_CONST(COUNT_HW_CACHE_LL),
1160 PERF_CONST(COUNT_HW_CACHE_DTLB),
1161 PERF_CONST(COUNT_HW_CACHE_ITLB),
1162 PERF_CONST(COUNT_HW_CACHE_BPU),
1163 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1164 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1165 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1166 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1167 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1168
1169 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1170 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1171
1172 PERF_CONST(COUNT_SW_CPU_CLOCK),
1173 PERF_CONST(COUNT_SW_TASK_CLOCK),
1174 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1175 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1176 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1177 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1178 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1179 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1180 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1181 PERF_CONST(COUNT_SW_DUMMY),
1182
1183 PERF_CONST(SAMPLE_IP),
1184 PERF_CONST(SAMPLE_TID),
1185 PERF_CONST(SAMPLE_TIME),
1186 PERF_CONST(SAMPLE_ADDR),
1187 PERF_CONST(SAMPLE_READ),
1188 PERF_CONST(SAMPLE_CALLCHAIN),
1189 PERF_CONST(SAMPLE_ID),
1190 PERF_CONST(SAMPLE_CPU),
1191 PERF_CONST(SAMPLE_PERIOD),
1192 PERF_CONST(SAMPLE_STREAM_ID),
1193 PERF_CONST(SAMPLE_RAW),
1194
1195 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1196 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1197 PERF_CONST(FORMAT_ID),
1198 PERF_CONST(FORMAT_GROUP),
1199
1200 PERF_CONST(RECORD_MMAP),
1201 PERF_CONST(RECORD_LOST),
1202 PERF_CONST(RECORD_COMM),
1203 PERF_CONST(RECORD_EXIT),
1204 PERF_CONST(RECORD_THROTTLE),
1205 PERF_CONST(RECORD_UNTHROTTLE),
1206 PERF_CONST(RECORD_FORK),
1207 PERF_CONST(RECORD_READ),
1208 PERF_CONST(RECORD_SAMPLE),
1209 PERF_CONST(RECORD_MMAP2),
1210 PERF_CONST(RECORD_AUX),
1211 PERF_CONST(RECORD_ITRACE_START),
1212 PERF_CONST(RECORD_LOST_SAMPLES),
1213 PERF_CONST(RECORD_SWITCH),
1214 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1215
1216 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1217 { .name = NULL, },
1218};
1219
1220static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1221 PyObject *args, PyObject *kwargs)
1222{
1223#ifndef HAVE_LIBTRACEEVENT
1224 return NULL;
1225#else
1226 struct tep_event *tp_format;
1227 static char *kwlist[] = { "sys", "name", NULL };
1228 char *sys = NULL;
1229 char *name = NULL;
1230
1231 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1232 &sys, &name))
1233 return NULL;
1234
1235 tp_format = trace_event__tp_format(sys, name);
1236 if (IS_ERR(tp_format))
1237 return _PyLong_FromLong(-1);
1238
1239 return _PyLong_FromLong(tp_format->id);
1240#endif // HAVE_LIBTRACEEVENT
1241}
1242
1243static PyMethodDef perf__methods[] = {
1244 {
1245 .ml_name = "tracepoint",
1246 .ml_meth = (PyCFunction) pyrf__tracepoint,
1247 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1248 .ml_doc = PyDoc_STR("Get tracepoint config.")
1249 },
1250 { .ml_name = NULL, }
1251};
1252
1253#if PY_MAJOR_VERSION < 3
1254PyMODINIT_FUNC initperf(void)
1255#else
1256PyMODINIT_FUNC PyInit_perf(void)
1257#endif
1258{
1259 PyObject *obj;
1260 int i;
1261 PyObject *dict;
1262#if PY_MAJOR_VERSION < 3
1263 PyObject *module = Py_InitModule("perf", perf__methods);
1264#else
1265 static struct PyModuleDef moduledef = {
1266 PyModuleDef_HEAD_INIT,
1267 "perf", /* m_name */
1268 "", /* m_doc */
1269 -1, /* m_size */
1270 perf__methods, /* m_methods */
1271 NULL, /* m_reload */
1272 NULL, /* m_traverse */
1273 NULL, /* m_clear */
1274 NULL, /* m_free */
1275 };
1276 PyObject *module = PyModule_Create(&moduledef);
1277#endif
1278
1279 if (module == NULL ||
1280 pyrf_event__setup_types() < 0 ||
1281 pyrf_evlist__setup_types() < 0 ||
1282 pyrf_evsel__setup_types() < 0 ||
1283 pyrf_thread_map__setup_types() < 0 ||
1284 pyrf_cpu_map__setup_types() < 0)
1285#if PY_MAJOR_VERSION < 3
1286 return;
1287#else
1288 return module;
1289#endif
1290
1291 /* The page_size is placed in util object. */
1292 page_size = sysconf(_SC_PAGE_SIZE);
1293
1294 Py_INCREF(&pyrf_evlist__type);
1295 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1296
1297 Py_INCREF(&pyrf_evsel__type);
1298 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1299
1300 Py_INCREF(&pyrf_mmap_event__type);
1301 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1302
1303 Py_INCREF(&pyrf_lost_event__type);
1304 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1305
1306 Py_INCREF(&pyrf_comm_event__type);
1307 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1308
1309 Py_INCREF(&pyrf_task_event__type);
1310 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1311
1312 Py_INCREF(&pyrf_throttle_event__type);
1313 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1314
1315 Py_INCREF(&pyrf_task_event__type);
1316 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1317
1318 Py_INCREF(&pyrf_read_event__type);
1319 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1320
1321 Py_INCREF(&pyrf_sample_event__type);
1322 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1323
1324 Py_INCREF(&pyrf_context_switch_event__type);
1325 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1326
1327 Py_INCREF(&pyrf_thread_map__type);
1328 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1329
1330 Py_INCREF(&pyrf_cpu_map__type);
1331 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1332
1333 dict = PyModule_GetDict(module);
1334 if (dict == NULL)
1335 goto error;
1336
1337 for (i = 0; perf__constants[i].name != NULL; i++) {
1338 obj = _PyLong_FromLong(perf__constants[i].value);
1339 if (obj == NULL)
1340 goto error;
1341 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1342 Py_DECREF(obj);
1343 }
1344
1345error:
1346 if (PyErr_Occurred())
1347 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1348#if PY_MAJOR_VERSION >= 3
1349 return module;
1350#endif
1351}
1352
1353
1354/* The following are stubs to avoid dragging in builtin-* objects. */
1355/* TODO: move the code out of the builtin-* file into util. */
1356
1357unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
1358
1359#ifdef HAVE_KVM_STAT_SUPPORT
1360bool kvm_entry_event(struct evsel *evsel __maybe_unused)
1361{
1362 return false;
1363}
1364
1365bool kvm_exit_event(struct evsel *evsel __maybe_unused)
1366{
1367 return false;
1368}
1369
1370bool exit_event_begin(struct evsel *evsel __maybe_unused,
1371 struct perf_sample *sample __maybe_unused,
1372 struct event_key *key __maybe_unused)
1373{
1374 return false;
1375}
1376
1377bool exit_event_end(struct evsel *evsel __maybe_unused,
1378 struct perf_sample *sample __maybe_unused,
1379 struct event_key *key __maybe_unused)
1380{
1381 return false;
1382}
1383
1384void exit_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused,
1385 struct event_key *key __maybe_unused,
1386 char *decode __maybe_unused)
1387{
1388}
1389#endif // HAVE_KVM_STAT_SUPPORT
1390
1391int find_scripts(char **scripts_array __maybe_unused, char **scripts_path_array __maybe_unused,
1392 int num __maybe_unused, int pathlen __maybe_unused)
1393{
1394 return -1;
1395}
1396
1397void perf_stat__set_no_csv_summary(int set __maybe_unused)
1398{
1399}
1400
1401void perf_stat__set_big_num(int set __maybe_unused)
1402{
1403}
1404
1405int script_spec_register(const char *spec __maybe_unused, struct scripting_ops *ops __maybe_unused)
1406{
1407 return -1;
1408}
1409
1410arch_syscalls__strerrno_t *arch_syscalls__strerrno_function(const char *arch __maybe_unused)
1411{
1412 return NULL;
1413}
1414
1415struct kwork_work *perf_kwork_add_work(struct perf_kwork *kwork __maybe_unused,
1416 struct kwork_class *class __maybe_unused,
1417 struct kwork_work *key __maybe_unused)
1418{
1419 return NULL;
1420}
1421
1422void script_fetch_insn(struct perf_sample *sample __maybe_unused,
1423 struct thread *thread __maybe_unused,
1424 struct machine *machine __maybe_unused)
1425{
1426}
1427
1428int perf_sample__sprintf_flags(u32 flags __maybe_unused, char *str __maybe_unused,
1429 size_t sz __maybe_unused)
1430{
1431 return -1;
1432}
1433
1434bool match_callstack_filter(struct machine *machine __maybe_unused, u64 *callstack __maybe_unused)
1435{
1436 return false;
1437}
1438
1439struct lock_stat *lock_stat_find(u64 addr __maybe_unused)
1440{
1441 return NULL;
1442}
1443
1444struct lock_stat *lock_stat_findnew(u64 addr __maybe_unused, const char *name __maybe_unused,
1445 int flags __maybe_unused)
1446{
1447 return NULL;
1448}
1449
1450int cmd_inject(int argc __maybe_unused, const char *argv[] __maybe_unused)
1451{
1452 return -1;
1453}
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 "util/env.h"
19#include <internal/lib.h>
20#include "../perf-sys.h"
21
22#if PY_MAJOR_VERSION < 3
23#define _PyUnicode_FromString(arg) \
24 PyString_FromString(arg)
25#define _PyUnicode_AsString(arg) \
26 PyString_AsString(arg)
27#define _PyUnicode_FromFormat(...) \
28 PyString_FromFormat(__VA_ARGS__)
29#define _PyLong_FromLong(arg) \
30 PyInt_FromLong(arg)
31
32#else
33
34#define _PyUnicode_FromString(arg) \
35 PyUnicode_FromString(arg)
36#define _PyUnicode_FromFormat(...) \
37 PyUnicode_FromFormat(__VA_ARGS__)
38#define _PyLong_FromLong(arg) \
39 PyLong_FromLong(arg)
40#endif
41
42#ifndef Py_TYPE
43#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
44#endif
45
46/*
47 * Provide these two so that we don't have to link against callchain.c and
48 * start dragging hist.c, etc.
49 */
50struct callchain_param callchain_param;
51
52int parse_callchain_record(const char *arg __maybe_unused,
53 struct callchain_param *param __maybe_unused)
54{
55 return 0;
56}
57
58/*
59 * Add this one here not to drag util/env.c
60 */
61struct perf_env perf_env;
62
63/*
64 * Support debug printing even though util/debug.c is not linked. That means
65 * implementing 'verbose' and 'eprintf'.
66 */
67int verbose;
68int debug_peo_args;
69
70int eprintf(int level, int var, const char *fmt, ...);
71
72int eprintf(int level, int var, const char *fmt, ...)
73{
74 va_list args;
75 int ret = 0;
76
77 if (var >= level) {
78 va_start(args, fmt);
79 ret = vfprintf(stderr, fmt, args);
80 va_end(args);
81 }
82
83 return ret;
84}
85
86/* Define PyVarObject_HEAD_INIT for python 2.5 */
87#ifndef PyVarObject_HEAD_INIT
88# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
89#endif
90
91#if PY_MAJOR_VERSION < 3
92PyMODINIT_FUNC initperf(void);
93#else
94PyMODINIT_FUNC PyInit_perf(void);
95#endif
96
97#define member_def(type, member, ptype, help) \
98 { #member, ptype, \
99 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
100 0, help }
101
102#define sample_member_def(name, member, ptype, help) \
103 { #name, ptype, \
104 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
105 0, help }
106
107struct pyrf_event {
108 PyObject_HEAD
109 struct evsel *evsel;
110 struct perf_sample sample;
111 union perf_event event;
112};
113
114#define sample_members \
115 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
116 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
117 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
118 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
119 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
120 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
121 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
122 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
123 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
124
125static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
126
127static PyMemberDef pyrf_mmap_event__members[] = {
128 sample_members
129 member_def(perf_event_header, type, T_UINT, "event type"),
130 member_def(perf_event_header, misc, T_UINT, "event misc"),
131 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
132 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
133 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
134 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
135 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
136 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
137 { .name = NULL, },
138};
139
140static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
141{
142 PyObject *ret;
143 char *s;
144
145 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
146 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
147 "filename: %s }",
148 pevent->event.mmap.pid, pevent->event.mmap.tid,
149 pevent->event.mmap.start, pevent->event.mmap.len,
150 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
151 ret = PyErr_NoMemory();
152 } else {
153 ret = _PyUnicode_FromString(s);
154 free(s);
155 }
156 return ret;
157}
158
159static PyTypeObject pyrf_mmap_event__type = {
160 PyVarObject_HEAD_INIT(NULL, 0)
161 .tp_name = "perf.mmap_event",
162 .tp_basicsize = sizeof(struct pyrf_event),
163 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
164 .tp_doc = pyrf_mmap_event__doc,
165 .tp_members = pyrf_mmap_event__members,
166 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
167};
168
169static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
170
171static PyMemberDef pyrf_task_event__members[] = {
172 sample_members
173 member_def(perf_event_header, type, T_UINT, "event type"),
174 member_def(perf_record_fork, pid, T_UINT, "event pid"),
175 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
176 member_def(perf_record_fork, tid, T_UINT, "event tid"),
177 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
178 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
179 { .name = NULL, },
180};
181
182static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
183{
184 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
185 "ptid: %u, time: %" PRI_lu64 "}",
186 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
187 pevent->event.fork.pid,
188 pevent->event.fork.ppid,
189 pevent->event.fork.tid,
190 pevent->event.fork.ptid,
191 pevent->event.fork.time);
192}
193
194static PyTypeObject pyrf_task_event__type = {
195 PyVarObject_HEAD_INIT(NULL, 0)
196 .tp_name = "perf.task_event",
197 .tp_basicsize = sizeof(struct pyrf_event),
198 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
199 .tp_doc = pyrf_task_event__doc,
200 .tp_members = pyrf_task_event__members,
201 .tp_repr = (reprfunc)pyrf_task_event__repr,
202};
203
204static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
205
206static PyMemberDef pyrf_comm_event__members[] = {
207 sample_members
208 member_def(perf_event_header, type, T_UINT, "event type"),
209 member_def(perf_record_comm, pid, T_UINT, "event pid"),
210 member_def(perf_record_comm, tid, T_UINT, "event tid"),
211 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
212 { .name = NULL, },
213};
214
215static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
216{
217 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
218 pevent->event.comm.pid,
219 pevent->event.comm.tid,
220 pevent->event.comm.comm);
221}
222
223static PyTypeObject pyrf_comm_event__type = {
224 PyVarObject_HEAD_INIT(NULL, 0)
225 .tp_name = "perf.comm_event",
226 .tp_basicsize = sizeof(struct pyrf_event),
227 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
228 .tp_doc = pyrf_comm_event__doc,
229 .tp_members = pyrf_comm_event__members,
230 .tp_repr = (reprfunc)pyrf_comm_event__repr,
231};
232
233static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
234
235static PyMemberDef pyrf_throttle_event__members[] = {
236 sample_members
237 member_def(perf_event_header, type, T_UINT, "event type"),
238 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
239 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
240 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
241 { .name = NULL, },
242};
243
244static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
245{
246 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
247
248 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
249 ", stream_id: %" PRI_lu64 " }",
250 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
251 te->time, te->id, te->stream_id);
252}
253
254static PyTypeObject pyrf_throttle_event__type = {
255 PyVarObject_HEAD_INIT(NULL, 0)
256 .tp_name = "perf.throttle_event",
257 .tp_basicsize = sizeof(struct pyrf_event),
258 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
259 .tp_doc = pyrf_throttle_event__doc,
260 .tp_members = pyrf_throttle_event__members,
261 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
262};
263
264static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
265
266static PyMemberDef pyrf_lost_event__members[] = {
267 sample_members
268 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
269 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
270 { .name = NULL, },
271};
272
273static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
274{
275 PyObject *ret;
276 char *s;
277
278 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
279 "lost: %#" PRI_lx64 " }",
280 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
281 ret = PyErr_NoMemory();
282 } else {
283 ret = _PyUnicode_FromString(s);
284 free(s);
285 }
286 return ret;
287}
288
289static PyTypeObject pyrf_lost_event__type = {
290 PyVarObject_HEAD_INIT(NULL, 0)
291 .tp_name = "perf.lost_event",
292 .tp_basicsize = sizeof(struct pyrf_event),
293 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
294 .tp_doc = pyrf_lost_event__doc,
295 .tp_members = pyrf_lost_event__members,
296 .tp_repr = (reprfunc)pyrf_lost_event__repr,
297};
298
299static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
300
301static PyMemberDef pyrf_read_event__members[] = {
302 sample_members
303 member_def(perf_record_read, pid, T_UINT, "event pid"),
304 member_def(perf_record_read, tid, T_UINT, "event tid"),
305 { .name = NULL, },
306};
307
308static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
309{
310 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
311 pevent->event.read.pid,
312 pevent->event.read.tid);
313 /*
314 * FIXME: return the array of read values,
315 * making this method useful ;-)
316 */
317}
318
319static PyTypeObject pyrf_read_event__type = {
320 PyVarObject_HEAD_INIT(NULL, 0)
321 .tp_name = "perf.read_event",
322 .tp_basicsize = sizeof(struct pyrf_event),
323 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
324 .tp_doc = pyrf_read_event__doc,
325 .tp_members = pyrf_read_event__members,
326 .tp_repr = (reprfunc)pyrf_read_event__repr,
327};
328
329static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
330
331static PyMemberDef pyrf_sample_event__members[] = {
332 sample_members
333 member_def(perf_event_header, type, T_UINT, "event type"),
334 { .name = NULL, },
335};
336
337static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
338{
339 PyObject *ret;
340 char *s;
341
342 if (asprintf(&s, "{ type: sample }") < 0) {
343 ret = PyErr_NoMemory();
344 } else {
345 ret = _PyUnicode_FromString(s);
346 free(s);
347 }
348 return ret;
349}
350
351static bool is_tracepoint(struct pyrf_event *pevent)
352{
353 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
354}
355
356static PyObject*
357tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
358{
359 struct tep_handle *pevent = field->event->tep;
360 void *data = pe->sample.raw_data;
361 PyObject *ret = NULL;
362 unsigned long long val;
363 unsigned int offset, len;
364
365 if (field->flags & TEP_FIELD_IS_ARRAY) {
366 offset = field->offset;
367 len = field->size;
368 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
369 val = tep_read_number(pevent, data + offset, len);
370 offset = val;
371 len = offset >> 16;
372 offset &= 0xffff;
373 }
374 if (field->flags & TEP_FIELD_IS_STRING &&
375 is_printable_array(data + offset, len)) {
376 ret = _PyUnicode_FromString((char *)data + offset);
377 } else {
378 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
379 field->flags &= ~TEP_FIELD_IS_STRING;
380 }
381 } else {
382 val = tep_read_number(pevent, data + field->offset,
383 field->size);
384 if (field->flags & TEP_FIELD_IS_POINTER)
385 ret = PyLong_FromUnsignedLong((unsigned long) val);
386 else if (field->flags & TEP_FIELD_IS_SIGNED)
387 ret = PyLong_FromLong((long) val);
388 else
389 ret = PyLong_FromUnsignedLong((unsigned long) val);
390 }
391
392 return ret;
393}
394
395static PyObject*
396get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
397{
398 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
399 struct evsel *evsel = pevent->evsel;
400 struct tep_format_field *field;
401
402 if (!evsel->tp_format) {
403 struct tep_event *tp_format;
404
405 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
406 if (!tp_format)
407 return NULL;
408
409 evsel->tp_format = tp_format;
410 }
411
412 field = tep_find_any_field(evsel->tp_format, str);
413 if (!field)
414 return NULL;
415
416 return tracepoint_field(pevent, field);
417}
418
419static PyObject*
420pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
421{
422 PyObject *obj = NULL;
423
424 if (is_tracepoint(pevent))
425 obj = get_tracepoint_field(pevent, attr_name);
426
427 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
428}
429
430static PyTypeObject pyrf_sample_event__type = {
431 PyVarObject_HEAD_INIT(NULL, 0)
432 .tp_name = "perf.sample_event",
433 .tp_basicsize = sizeof(struct pyrf_event),
434 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
435 .tp_doc = pyrf_sample_event__doc,
436 .tp_members = pyrf_sample_event__members,
437 .tp_repr = (reprfunc)pyrf_sample_event__repr,
438 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
439};
440
441static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
442
443static PyMemberDef pyrf_context_switch_event__members[] = {
444 sample_members
445 member_def(perf_event_header, type, T_UINT, "event type"),
446 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
447 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
448 { .name = NULL, },
449};
450
451static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
452{
453 PyObject *ret;
454 char *s;
455
456 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
457 pevent->event.context_switch.next_prev_pid,
458 pevent->event.context_switch.next_prev_tid,
459 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
460 ret = PyErr_NoMemory();
461 } else {
462 ret = _PyUnicode_FromString(s);
463 free(s);
464 }
465 return ret;
466}
467
468static PyTypeObject pyrf_context_switch_event__type = {
469 PyVarObject_HEAD_INIT(NULL, 0)
470 .tp_name = "perf.context_switch_event",
471 .tp_basicsize = sizeof(struct pyrf_event),
472 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
473 .tp_doc = pyrf_context_switch_event__doc,
474 .tp_members = pyrf_context_switch_event__members,
475 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
476};
477
478static int pyrf_event__setup_types(void)
479{
480 int err;
481 pyrf_mmap_event__type.tp_new =
482 pyrf_task_event__type.tp_new =
483 pyrf_comm_event__type.tp_new =
484 pyrf_lost_event__type.tp_new =
485 pyrf_read_event__type.tp_new =
486 pyrf_sample_event__type.tp_new =
487 pyrf_context_switch_event__type.tp_new =
488 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
489 err = PyType_Ready(&pyrf_mmap_event__type);
490 if (err < 0)
491 goto out;
492 err = PyType_Ready(&pyrf_lost_event__type);
493 if (err < 0)
494 goto out;
495 err = PyType_Ready(&pyrf_task_event__type);
496 if (err < 0)
497 goto out;
498 err = PyType_Ready(&pyrf_comm_event__type);
499 if (err < 0)
500 goto out;
501 err = PyType_Ready(&pyrf_throttle_event__type);
502 if (err < 0)
503 goto out;
504 err = PyType_Ready(&pyrf_read_event__type);
505 if (err < 0)
506 goto out;
507 err = PyType_Ready(&pyrf_sample_event__type);
508 if (err < 0)
509 goto out;
510 err = PyType_Ready(&pyrf_context_switch_event__type);
511 if (err < 0)
512 goto out;
513out:
514 return err;
515}
516
517static PyTypeObject *pyrf_event__type[] = {
518 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
519 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
520 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
521 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
522 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
523 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
524 [PERF_RECORD_FORK] = &pyrf_task_event__type,
525 [PERF_RECORD_READ] = &pyrf_read_event__type,
526 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
527 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
528 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
529};
530
531static PyObject *pyrf_event__new(union perf_event *event)
532{
533 struct pyrf_event *pevent;
534 PyTypeObject *ptype;
535
536 if ((event->header.type < PERF_RECORD_MMAP ||
537 event->header.type > PERF_RECORD_SAMPLE) &&
538 !(event->header.type == PERF_RECORD_SWITCH ||
539 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
540 return NULL;
541
542 ptype = pyrf_event__type[event->header.type];
543 pevent = PyObject_New(struct pyrf_event, ptype);
544 if (pevent != NULL)
545 memcpy(&pevent->event, event, event->header.size);
546 return (PyObject *)pevent;
547}
548
549struct pyrf_cpu_map {
550 PyObject_HEAD
551
552 struct perf_cpu_map *cpus;
553};
554
555static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
556 PyObject *args, PyObject *kwargs)
557{
558 static char *kwlist[] = { "cpustr", NULL };
559 char *cpustr = NULL;
560
561 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
562 kwlist, &cpustr))
563 return -1;
564
565 pcpus->cpus = perf_cpu_map__new(cpustr);
566 if (pcpus->cpus == NULL)
567 return -1;
568 return 0;
569}
570
571static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
572{
573 perf_cpu_map__put(pcpus->cpus);
574 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
575}
576
577static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
578{
579 struct pyrf_cpu_map *pcpus = (void *)obj;
580
581 return pcpus->cpus->nr;
582}
583
584static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
585{
586 struct pyrf_cpu_map *pcpus = (void *)obj;
587
588 if (i >= pcpus->cpus->nr)
589 return NULL;
590
591 return Py_BuildValue("i", pcpus->cpus->map[i]);
592}
593
594static PySequenceMethods pyrf_cpu_map__sequence_methods = {
595 .sq_length = pyrf_cpu_map__length,
596 .sq_item = pyrf_cpu_map__item,
597};
598
599static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
600
601static PyTypeObject pyrf_cpu_map__type = {
602 PyVarObject_HEAD_INIT(NULL, 0)
603 .tp_name = "perf.cpu_map",
604 .tp_basicsize = sizeof(struct pyrf_cpu_map),
605 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
606 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
607 .tp_doc = pyrf_cpu_map__doc,
608 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
609 .tp_init = (initproc)pyrf_cpu_map__init,
610};
611
612static int pyrf_cpu_map__setup_types(void)
613{
614 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
615 return PyType_Ready(&pyrf_cpu_map__type);
616}
617
618struct pyrf_thread_map {
619 PyObject_HEAD
620
621 struct perf_thread_map *threads;
622};
623
624static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
625 PyObject *args, PyObject *kwargs)
626{
627 static char *kwlist[] = { "pid", "tid", "uid", NULL };
628 int pid = -1, tid = -1, uid = UINT_MAX;
629
630 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
631 kwlist, &pid, &tid, &uid))
632 return -1;
633
634 pthreads->threads = thread_map__new(pid, tid, uid);
635 if (pthreads->threads == NULL)
636 return -1;
637 return 0;
638}
639
640static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
641{
642 perf_thread_map__put(pthreads->threads);
643 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
644}
645
646static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
647{
648 struct pyrf_thread_map *pthreads = (void *)obj;
649
650 return pthreads->threads->nr;
651}
652
653static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
654{
655 struct pyrf_thread_map *pthreads = (void *)obj;
656
657 if (i >= pthreads->threads->nr)
658 return NULL;
659
660 return Py_BuildValue("i", pthreads->threads->map[i]);
661}
662
663static PySequenceMethods pyrf_thread_map__sequence_methods = {
664 .sq_length = pyrf_thread_map__length,
665 .sq_item = pyrf_thread_map__item,
666};
667
668static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
669
670static PyTypeObject pyrf_thread_map__type = {
671 PyVarObject_HEAD_INIT(NULL, 0)
672 .tp_name = "perf.thread_map",
673 .tp_basicsize = sizeof(struct pyrf_thread_map),
674 .tp_dealloc = (destructor)pyrf_thread_map__delete,
675 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
676 .tp_doc = pyrf_thread_map__doc,
677 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
678 .tp_init = (initproc)pyrf_thread_map__init,
679};
680
681static int pyrf_thread_map__setup_types(void)
682{
683 pyrf_thread_map__type.tp_new = PyType_GenericNew;
684 return PyType_Ready(&pyrf_thread_map__type);
685}
686
687struct pyrf_evsel {
688 PyObject_HEAD
689
690 struct evsel evsel;
691};
692
693static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
694 PyObject *args, PyObject *kwargs)
695{
696 struct perf_event_attr attr = {
697 .type = PERF_TYPE_HARDWARE,
698 .config = PERF_COUNT_HW_CPU_CYCLES,
699 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
700 };
701 static char *kwlist[] = {
702 "type",
703 "config",
704 "sample_freq",
705 "sample_period",
706 "sample_type",
707 "read_format",
708 "disabled",
709 "inherit",
710 "pinned",
711 "exclusive",
712 "exclude_user",
713 "exclude_kernel",
714 "exclude_hv",
715 "exclude_idle",
716 "mmap",
717 "context_switch",
718 "comm",
719 "freq",
720 "inherit_stat",
721 "enable_on_exec",
722 "task",
723 "watermark",
724 "precise_ip",
725 "mmap_data",
726 "sample_id_all",
727 "wakeup_events",
728 "bp_type",
729 "bp_addr",
730 "bp_len",
731 NULL
732 };
733 u64 sample_period = 0;
734 u32 disabled = 0,
735 inherit = 0,
736 pinned = 0,
737 exclusive = 0,
738 exclude_user = 0,
739 exclude_kernel = 0,
740 exclude_hv = 0,
741 exclude_idle = 0,
742 mmap = 0,
743 context_switch = 0,
744 comm = 0,
745 freq = 1,
746 inherit_stat = 0,
747 enable_on_exec = 0,
748 task = 0,
749 watermark = 0,
750 precise_ip = 0,
751 mmap_data = 0,
752 sample_id_all = 1;
753 int idx = 0;
754
755 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
756 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
757 &attr.type, &attr.config, &attr.sample_freq,
758 &sample_period, &attr.sample_type,
759 &attr.read_format, &disabled, &inherit,
760 &pinned, &exclusive, &exclude_user,
761 &exclude_kernel, &exclude_hv, &exclude_idle,
762 &mmap, &context_switch, &comm, &freq, &inherit_stat,
763 &enable_on_exec, &task, &watermark,
764 &precise_ip, &mmap_data, &sample_id_all,
765 &attr.wakeup_events, &attr.bp_type,
766 &attr.bp_addr, &attr.bp_len, &idx))
767 return -1;
768
769 /* union... */
770 if (sample_period != 0) {
771 if (attr.sample_freq != 0)
772 return -1; /* FIXME: throw right exception */
773 attr.sample_period = sample_period;
774 }
775
776 /* Bitfields */
777 attr.disabled = disabled;
778 attr.inherit = inherit;
779 attr.pinned = pinned;
780 attr.exclusive = exclusive;
781 attr.exclude_user = exclude_user;
782 attr.exclude_kernel = exclude_kernel;
783 attr.exclude_hv = exclude_hv;
784 attr.exclude_idle = exclude_idle;
785 attr.mmap = mmap;
786 attr.context_switch = context_switch;
787 attr.comm = comm;
788 attr.freq = freq;
789 attr.inherit_stat = inherit_stat;
790 attr.enable_on_exec = enable_on_exec;
791 attr.task = task;
792 attr.watermark = watermark;
793 attr.precise_ip = precise_ip;
794 attr.mmap_data = mmap_data;
795 attr.sample_id_all = sample_id_all;
796 attr.size = sizeof(attr);
797
798 evsel__init(&pevsel->evsel, &attr, idx);
799 return 0;
800}
801
802static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
803{
804 evsel__exit(&pevsel->evsel);
805 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
806}
807
808static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
809 PyObject *args, PyObject *kwargs)
810{
811 struct evsel *evsel = &pevsel->evsel;
812 struct perf_cpu_map *cpus = NULL;
813 struct perf_thread_map *threads = NULL;
814 PyObject *pcpus = NULL, *pthreads = NULL;
815 int group = 0, inherit = 0;
816 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
817
818 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
819 &pcpus, &pthreads, &group, &inherit))
820 return NULL;
821
822 if (pthreads != NULL)
823 threads = ((struct pyrf_thread_map *)pthreads)->threads;
824
825 if (pcpus != NULL)
826 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
827
828 evsel->core.attr.inherit = inherit;
829 /*
830 * This will group just the fds for this single evsel, to group
831 * multiple events, use evlist.open().
832 */
833 if (evsel__open(evsel, cpus, threads) < 0) {
834 PyErr_SetFromErrno(PyExc_OSError);
835 return NULL;
836 }
837
838 Py_INCREF(Py_None);
839 return Py_None;
840}
841
842static PyMethodDef pyrf_evsel__methods[] = {
843 {
844 .ml_name = "open",
845 .ml_meth = (PyCFunction)pyrf_evsel__open,
846 .ml_flags = METH_VARARGS | METH_KEYWORDS,
847 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
848 },
849 { .ml_name = NULL, }
850};
851
852static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
853
854static PyTypeObject pyrf_evsel__type = {
855 PyVarObject_HEAD_INIT(NULL, 0)
856 .tp_name = "perf.evsel",
857 .tp_basicsize = sizeof(struct pyrf_evsel),
858 .tp_dealloc = (destructor)pyrf_evsel__delete,
859 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
860 .tp_doc = pyrf_evsel__doc,
861 .tp_methods = pyrf_evsel__methods,
862 .tp_init = (initproc)pyrf_evsel__init,
863};
864
865static int pyrf_evsel__setup_types(void)
866{
867 pyrf_evsel__type.tp_new = PyType_GenericNew;
868 return PyType_Ready(&pyrf_evsel__type);
869}
870
871struct pyrf_evlist {
872 PyObject_HEAD
873
874 struct evlist evlist;
875};
876
877static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
878 PyObject *args, PyObject *kwargs __maybe_unused)
879{
880 PyObject *pcpus = NULL, *pthreads = NULL;
881 struct perf_cpu_map *cpus;
882 struct perf_thread_map *threads;
883
884 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
885 return -1;
886
887 threads = ((struct pyrf_thread_map *)pthreads)->threads;
888 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
889 evlist__init(&pevlist->evlist, cpus, threads);
890 return 0;
891}
892
893static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
894{
895 evlist__exit(&pevlist->evlist);
896 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
897}
898
899static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
900 PyObject *args, PyObject *kwargs)
901{
902 struct evlist *evlist = &pevlist->evlist;
903 static char *kwlist[] = { "pages", "overwrite", NULL };
904 int pages = 128, overwrite = false;
905
906 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
907 &pages, &overwrite))
908 return NULL;
909
910 if (evlist__mmap(evlist, pages) < 0) {
911 PyErr_SetFromErrno(PyExc_OSError);
912 return NULL;
913 }
914
915 Py_INCREF(Py_None);
916 return Py_None;
917}
918
919static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
920 PyObject *args, PyObject *kwargs)
921{
922 struct evlist *evlist = &pevlist->evlist;
923 static char *kwlist[] = { "timeout", NULL };
924 int timeout = -1, n;
925
926 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
927 return NULL;
928
929 n = evlist__poll(evlist, timeout);
930 if (n < 0) {
931 PyErr_SetFromErrno(PyExc_OSError);
932 return NULL;
933 }
934
935 return Py_BuildValue("i", n);
936}
937
938static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
939 PyObject *args __maybe_unused,
940 PyObject *kwargs __maybe_unused)
941{
942 struct evlist *evlist = &pevlist->evlist;
943 PyObject *list = PyList_New(0);
944 int i;
945
946 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
947 PyObject *file;
948#if PY_MAJOR_VERSION < 3
949 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
950
951 if (fp == NULL)
952 goto free_list;
953
954 file = PyFile_FromFile(fp, "perf", "r", NULL);
955#else
956 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
957 NULL, NULL, NULL, 0);
958#endif
959 if (file == NULL)
960 goto free_list;
961
962 if (PyList_Append(list, file) != 0) {
963 Py_DECREF(file);
964 goto free_list;
965 }
966
967 Py_DECREF(file);
968 }
969
970 return list;
971free_list:
972 return PyErr_NoMemory();
973}
974
975
976static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
977 PyObject *args,
978 PyObject *kwargs __maybe_unused)
979{
980 struct evlist *evlist = &pevlist->evlist;
981 PyObject *pevsel;
982 struct evsel *evsel;
983
984 if (!PyArg_ParseTuple(args, "O", &pevsel))
985 return NULL;
986
987 Py_INCREF(pevsel);
988 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
989 evsel->idx = evlist->core.nr_entries;
990 evlist__add(evlist, evsel);
991
992 return Py_BuildValue("i", evlist->core.nr_entries);
993}
994
995static struct mmap *get_md(struct evlist *evlist, int cpu)
996{
997 int i;
998
999 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1000 struct mmap *md = &evlist->mmap[i];
1001
1002 if (md->core.cpu == cpu)
1003 return md;
1004 }
1005
1006 return NULL;
1007}
1008
1009static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1010 PyObject *args, PyObject *kwargs)
1011{
1012 struct evlist *evlist = &pevlist->evlist;
1013 union perf_event *event;
1014 int sample_id_all = 1, cpu;
1015 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1016 struct mmap *md;
1017 int err;
1018
1019 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1020 &cpu, &sample_id_all))
1021 return NULL;
1022
1023 md = get_md(evlist, cpu);
1024 if (!md)
1025 return NULL;
1026
1027 if (perf_mmap__read_init(&md->core) < 0)
1028 goto end;
1029
1030 event = perf_mmap__read_event(&md->core);
1031 if (event != NULL) {
1032 PyObject *pyevent = pyrf_event__new(event);
1033 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1034 struct evsel *evsel;
1035
1036 if (pyevent == NULL)
1037 return PyErr_NoMemory();
1038
1039 evsel = perf_evlist__event2evsel(evlist, event);
1040 if (!evsel) {
1041 Py_INCREF(Py_None);
1042 return Py_None;
1043 }
1044
1045 pevent->evsel = evsel;
1046
1047 err = evsel__parse_sample(evsel, event, &pevent->sample);
1048
1049 /* Consume the even only after we parsed it out. */
1050 perf_mmap__consume(&md->core);
1051
1052 if (err)
1053 return PyErr_Format(PyExc_OSError,
1054 "perf: can't parse sample, err=%d", err);
1055 return pyevent;
1056 }
1057end:
1058 Py_INCREF(Py_None);
1059 return Py_None;
1060}
1061
1062static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1063 PyObject *args, PyObject *kwargs)
1064{
1065 struct evlist *evlist = &pevlist->evlist;
1066 int group = 0;
1067 static char *kwlist[] = { "group", NULL };
1068
1069 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1070 return NULL;
1071
1072 if (group)
1073 perf_evlist__set_leader(evlist);
1074
1075 if (evlist__open(evlist) < 0) {
1076 PyErr_SetFromErrno(PyExc_OSError);
1077 return NULL;
1078 }
1079
1080 Py_INCREF(Py_None);
1081 return Py_None;
1082}
1083
1084static PyMethodDef pyrf_evlist__methods[] = {
1085 {
1086 .ml_name = "mmap",
1087 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1088 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1089 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1090 },
1091 {
1092 .ml_name = "open",
1093 .ml_meth = (PyCFunction)pyrf_evlist__open,
1094 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1095 .ml_doc = PyDoc_STR("open the file descriptors.")
1096 },
1097 {
1098 .ml_name = "poll",
1099 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1100 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1101 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1102 },
1103 {
1104 .ml_name = "get_pollfd",
1105 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1106 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1107 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1108 },
1109 {
1110 .ml_name = "add",
1111 .ml_meth = (PyCFunction)pyrf_evlist__add,
1112 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1113 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1114 },
1115 {
1116 .ml_name = "read_on_cpu",
1117 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1118 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1119 .ml_doc = PyDoc_STR("reads an event.")
1120 },
1121 { .ml_name = NULL, }
1122};
1123
1124static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1125{
1126 struct pyrf_evlist *pevlist = (void *)obj;
1127
1128 return pevlist->evlist.core.nr_entries;
1129}
1130
1131static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1132{
1133 struct pyrf_evlist *pevlist = (void *)obj;
1134 struct evsel *pos;
1135
1136 if (i >= pevlist->evlist.core.nr_entries)
1137 return NULL;
1138
1139 evlist__for_each_entry(&pevlist->evlist, pos) {
1140 if (i-- == 0)
1141 break;
1142 }
1143
1144 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1145}
1146
1147static PySequenceMethods pyrf_evlist__sequence_methods = {
1148 .sq_length = pyrf_evlist__length,
1149 .sq_item = pyrf_evlist__item,
1150};
1151
1152static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1153
1154static PyTypeObject pyrf_evlist__type = {
1155 PyVarObject_HEAD_INIT(NULL, 0)
1156 .tp_name = "perf.evlist",
1157 .tp_basicsize = sizeof(struct pyrf_evlist),
1158 .tp_dealloc = (destructor)pyrf_evlist__delete,
1159 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1160 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1161 .tp_doc = pyrf_evlist__doc,
1162 .tp_methods = pyrf_evlist__methods,
1163 .tp_init = (initproc)pyrf_evlist__init,
1164};
1165
1166static int pyrf_evlist__setup_types(void)
1167{
1168 pyrf_evlist__type.tp_new = PyType_GenericNew;
1169 return PyType_Ready(&pyrf_evlist__type);
1170}
1171
1172#define PERF_CONST(name) { #name, PERF_##name }
1173
1174static struct {
1175 const char *name;
1176 int value;
1177} perf__constants[] = {
1178 PERF_CONST(TYPE_HARDWARE),
1179 PERF_CONST(TYPE_SOFTWARE),
1180 PERF_CONST(TYPE_TRACEPOINT),
1181 PERF_CONST(TYPE_HW_CACHE),
1182 PERF_CONST(TYPE_RAW),
1183 PERF_CONST(TYPE_BREAKPOINT),
1184
1185 PERF_CONST(COUNT_HW_CPU_CYCLES),
1186 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1187 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1188 PERF_CONST(COUNT_HW_CACHE_MISSES),
1189 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1190 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1191 PERF_CONST(COUNT_HW_BUS_CYCLES),
1192 PERF_CONST(COUNT_HW_CACHE_L1D),
1193 PERF_CONST(COUNT_HW_CACHE_L1I),
1194 PERF_CONST(COUNT_HW_CACHE_LL),
1195 PERF_CONST(COUNT_HW_CACHE_DTLB),
1196 PERF_CONST(COUNT_HW_CACHE_ITLB),
1197 PERF_CONST(COUNT_HW_CACHE_BPU),
1198 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1199 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1200 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1201 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1202 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1203
1204 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1205 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1206
1207 PERF_CONST(COUNT_SW_CPU_CLOCK),
1208 PERF_CONST(COUNT_SW_TASK_CLOCK),
1209 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1210 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1211 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1212 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1213 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1214 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1215 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1216 PERF_CONST(COUNT_SW_DUMMY),
1217
1218 PERF_CONST(SAMPLE_IP),
1219 PERF_CONST(SAMPLE_TID),
1220 PERF_CONST(SAMPLE_TIME),
1221 PERF_CONST(SAMPLE_ADDR),
1222 PERF_CONST(SAMPLE_READ),
1223 PERF_CONST(SAMPLE_CALLCHAIN),
1224 PERF_CONST(SAMPLE_ID),
1225 PERF_CONST(SAMPLE_CPU),
1226 PERF_CONST(SAMPLE_PERIOD),
1227 PERF_CONST(SAMPLE_STREAM_ID),
1228 PERF_CONST(SAMPLE_RAW),
1229
1230 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1231 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1232 PERF_CONST(FORMAT_ID),
1233 PERF_CONST(FORMAT_GROUP),
1234
1235 PERF_CONST(RECORD_MMAP),
1236 PERF_CONST(RECORD_LOST),
1237 PERF_CONST(RECORD_COMM),
1238 PERF_CONST(RECORD_EXIT),
1239 PERF_CONST(RECORD_THROTTLE),
1240 PERF_CONST(RECORD_UNTHROTTLE),
1241 PERF_CONST(RECORD_FORK),
1242 PERF_CONST(RECORD_READ),
1243 PERF_CONST(RECORD_SAMPLE),
1244 PERF_CONST(RECORD_MMAP2),
1245 PERF_CONST(RECORD_AUX),
1246 PERF_CONST(RECORD_ITRACE_START),
1247 PERF_CONST(RECORD_LOST_SAMPLES),
1248 PERF_CONST(RECORD_SWITCH),
1249 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1250
1251 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1252 { .name = NULL, },
1253};
1254
1255static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1256 PyObject *args, PyObject *kwargs)
1257{
1258 struct tep_event *tp_format;
1259 static char *kwlist[] = { "sys", "name", NULL };
1260 char *sys = NULL;
1261 char *name = NULL;
1262
1263 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1264 &sys, &name))
1265 return NULL;
1266
1267 tp_format = trace_event__tp_format(sys, name);
1268 if (IS_ERR(tp_format))
1269 return _PyLong_FromLong(-1);
1270
1271 return _PyLong_FromLong(tp_format->id);
1272}
1273
1274static PyMethodDef perf__methods[] = {
1275 {
1276 .ml_name = "tracepoint",
1277 .ml_meth = (PyCFunction) pyrf__tracepoint,
1278 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1279 .ml_doc = PyDoc_STR("Get tracepoint config.")
1280 },
1281 { .ml_name = NULL, }
1282};
1283
1284#if PY_MAJOR_VERSION < 3
1285PyMODINIT_FUNC initperf(void)
1286#else
1287PyMODINIT_FUNC PyInit_perf(void)
1288#endif
1289{
1290 PyObject *obj;
1291 int i;
1292 PyObject *dict;
1293#if PY_MAJOR_VERSION < 3
1294 PyObject *module = Py_InitModule("perf", perf__methods);
1295#else
1296 static struct PyModuleDef moduledef = {
1297 PyModuleDef_HEAD_INIT,
1298 "perf", /* m_name */
1299 "", /* m_doc */
1300 -1, /* m_size */
1301 perf__methods, /* m_methods */
1302 NULL, /* m_reload */
1303 NULL, /* m_traverse */
1304 NULL, /* m_clear */
1305 NULL, /* m_free */
1306 };
1307 PyObject *module = PyModule_Create(&moduledef);
1308#endif
1309
1310 if (module == NULL ||
1311 pyrf_event__setup_types() < 0 ||
1312 pyrf_evlist__setup_types() < 0 ||
1313 pyrf_evsel__setup_types() < 0 ||
1314 pyrf_thread_map__setup_types() < 0 ||
1315 pyrf_cpu_map__setup_types() < 0)
1316#if PY_MAJOR_VERSION < 3
1317 return;
1318#else
1319 return module;
1320#endif
1321
1322 /* The page_size is placed in util object. */
1323 page_size = sysconf(_SC_PAGE_SIZE);
1324
1325 Py_INCREF(&pyrf_evlist__type);
1326 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1327
1328 Py_INCREF(&pyrf_evsel__type);
1329 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1330
1331 Py_INCREF(&pyrf_mmap_event__type);
1332 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1333
1334 Py_INCREF(&pyrf_lost_event__type);
1335 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1336
1337 Py_INCREF(&pyrf_comm_event__type);
1338 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1339
1340 Py_INCREF(&pyrf_task_event__type);
1341 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1342
1343 Py_INCREF(&pyrf_throttle_event__type);
1344 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1345
1346 Py_INCREF(&pyrf_task_event__type);
1347 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1348
1349 Py_INCREF(&pyrf_read_event__type);
1350 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1351
1352 Py_INCREF(&pyrf_sample_event__type);
1353 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1354
1355 Py_INCREF(&pyrf_context_switch_event__type);
1356 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1357
1358 Py_INCREF(&pyrf_thread_map__type);
1359 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1360
1361 Py_INCREF(&pyrf_cpu_map__type);
1362 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1363
1364 dict = PyModule_GetDict(module);
1365 if (dict == NULL)
1366 goto error;
1367
1368 for (i = 0; perf__constants[i].name != NULL; i++) {
1369 obj = _PyLong_FromLong(perf__constants[i].value);
1370 if (obj == NULL)
1371 goto error;
1372 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1373 Py_DECREF(obj);
1374 }
1375
1376error:
1377 if (PyErr_Occurred())
1378 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1379#if PY_MAJOR_VERSION >= 3
1380 return module;
1381#endif
1382}
1383
1384/*
1385 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1386 * binding.
1387 */
1388void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1389 int fd, int group_fd, unsigned long flags)
1390{
1391}