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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 <traceevent/event-parse.h>
10#endif
11#include <perf/mmap.h>
12#include "evlist.h"
13#include "callchain.h"
14#include "evsel.h"
15#include "event.h"
16#include "print_binary.h"
17#include "thread_map.h"
18#include "trace-event.h"
19#include "mmap.h"
20#include "stat.h"
21#include "metricgroup.h"
22#include "util/env.h"
23#include <internal/lib.h>
24#include "util.h"
25
26#if PY_MAJOR_VERSION < 3
27#define _PyUnicode_FromString(arg) \
28 PyString_FromString(arg)
29#define _PyUnicode_AsString(arg) \
30 PyString_AsString(arg)
31#define _PyUnicode_FromFormat(...) \
32 PyString_FromFormat(__VA_ARGS__)
33#define _PyLong_FromLong(arg) \
34 PyInt_FromLong(arg)
35
36#else
37
38#define _PyUnicode_FromString(arg) \
39 PyUnicode_FromString(arg)
40#define _PyUnicode_FromFormat(...) \
41 PyUnicode_FromFormat(__VA_ARGS__)
42#define _PyLong_FromLong(arg) \
43 PyLong_FromLong(arg)
44#endif
45
46#ifndef Py_TYPE
47#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
48#endif
49
50/*
51 * Provide these two so that we don't have to link against callchain.c and
52 * start dragging hist.c, etc.
53 */
54struct callchain_param callchain_param;
55
56int parse_callchain_record(const char *arg __maybe_unused,
57 struct callchain_param *param __maybe_unused)
58{
59 return 0;
60}
61
62/*
63 * Add these not to drag util/env.c
64 */
65struct perf_env perf_env;
66
67const char *perf_env__cpuid(struct perf_env *env __maybe_unused)
68{
69 return NULL;
70}
71
72// This one is a bit easier, wouldn't drag too much, but leave it as a stub we need it here
73const char *perf_env__arch(struct perf_env *env __maybe_unused)
74{
75 return NULL;
76}
77
78/*
79 * Add this one here not to drag util/stat-shadow.c
80 */
81void perf_stat__collect_metric_expr(struct evlist *evsel_list)
82{
83}
84
85/*
86 * This one is needed not to drag the PMU bandwagon, jevents generated
87 * pmu_sys_event_tables, etc and evsel__find_pmu() is used so far just for
88 * doing per PMU perf_event_attr.exclude_guest handling, not really needed, so
89 * far, for the perf python binding known usecases, revisit if this become
90 * necessary.
91 */
92struct perf_pmu *evsel__find_pmu(struct evsel *evsel __maybe_unused)
93{
94 return NULL;
95}
96
97/*
98 * Add this one here not to drag util/metricgroup.c
99 */
100int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
101 struct rblist *new_metric_events,
102 struct rblist *old_metric_events)
103{
104 return 0;
105}
106
107/*
108 * XXX: All these evsel destructors need some better mechanism, like a linked
109 * list of destructors registered when the relevant code indeed is used instead
110 * of having more and more calls in perf_evsel__delete(). -- acme
111 *
112 * For now, add some more:
113 *
114 * Not to drag the BPF bandwagon...
115 */
116void bpf_counter__destroy(struct evsel *evsel);
117int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd);
118int bpf_counter__disable(struct evsel *evsel);
119
120void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
121{
122}
123
124int bpf_counter__install_pe(struct evsel *evsel __maybe_unused, int cpu __maybe_unused, int fd __maybe_unused)
125{
126 return 0;
127}
128
129int bpf_counter__disable(struct evsel *evsel __maybe_unused)
130{
131 return 0;
132}
133
134/*
135 * Support debug printing even though util/debug.c is not linked. That means
136 * implementing 'verbose' and 'eprintf'.
137 */
138int verbose;
139int debug_peo_args;
140
141int eprintf(int level, int var, const char *fmt, ...);
142
143int eprintf(int level, int var, const char *fmt, ...)
144{
145 va_list args;
146 int ret = 0;
147
148 if (var >= level) {
149 va_start(args, fmt);
150 ret = vfprintf(stderr, fmt, args);
151 va_end(args);
152 }
153
154 return ret;
155}
156
157/* Define PyVarObject_HEAD_INIT for python 2.5 */
158#ifndef PyVarObject_HEAD_INIT
159# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
160#endif
161
162#if PY_MAJOR_VERSION < 3
163PyMODINIT_FUNC initperf(void);
164#else
165PyMODINIT_FUNC PyInit_perf(void);
166#endif
167
168#define member_def(type, member, ptype, help) \
169 { #member, ptype, \
170 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
171 0, help }
172
173#define sample_member_def(name, member, ptype, help) \
174 { #name, ptype, \
175 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
176 0, help }
177
178struct pyrf_event {
179 PyObject_HEAD
180 struct evsel *evsel;
181 struct perf_sample sample;
182 union perf_event event;
183};
184
185#define sample_members \
186 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
187 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
188 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
189 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
190 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
191 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
192 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
193 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
194 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
195
196static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
197
198static PyMemberDef pyrf_mmap_event__members[] = {
199 sample_members
200 member_def(perf_event_header, type, T_UINT, "event type"),
201 member_def(perf_event_header, misc, T_UINT, "event misc"),
202 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
203 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
204 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
205 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
206 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
207 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
208 { .name = NULL, },
209};
210
211static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
212{
213 PyObject *ret;
214 char *s;
215
216 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
217 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
218 "filename: %s }",
219 pevent->event.mmap.pid, pevent->event.mmap.tid,
220 pevent->event.mmap.start, pevent->event.mmap.len,
221 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
222 ret = PyErr_NoMemory();
223 } else {
224 ret = _PyUnicode_FromString(s);
225 free(s);
226 }
227 return ret;
228}
229
230static PyTypeObject pyrf_mmap_event__type = {
231 PyVarObject_HEAD_INIT(NULL, 0)
232 .tp_name = "perf.mmap_event",
233 .tp_basicsize = sizeof(struct pyrf_event),
234 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
235 .tp_doc = pyrf_mmap_event__doc,
236 .tp_members = pyrf_mmap_event__members,
237 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
238};
239
240static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
241
242static PyMemberDef pyrf_task_event__members[] = {
243 sample_members
244 member_def(perf_event_header, type, T_UINT, "event type"),
245 member_def(perf_record_fork, pid, T_UINT, "event pid"),
246 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
247 member_def(perf_record_fork, tid, T_UINT, "event tid"),
248 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
249 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
250 { .name = NULL, },
251};
252
253static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
254{
255 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
256 "ptid: %u, time: %" PRI_lu64 "}",
257 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
258 pevent->event.fork.pid,
259 pevent->event.fork.ppid,
260 pevent->event.fork.tid,
261 pevent->event.fork.ptid,
262 pevent->event.fork.time);
263}
264
265static PyTypeObject pyrf_task_event__type = {
266 PyVarObject_HEAD_INIT(NULL, 0)
267 .tp_name = "perf.task_event",
268 .tp_basicsize = sizeof(struct pyrf_event),
269 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
270 .tp_doc = pyrf_task_event__doc,
271 .tp_members = pyrf_task_event__members,
272 .tp_repr = (reprfunc)pyrf_task_event__repr,
273};
274
275static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
276
277static PyMemberDef pyrf_comm_event__members[] = {
278 sample_members
279 member_def(perf_event_header, type, T_UINT, "event type"),
280 member_def(perf_record_comm, pid, T_UINT, "event pid"),
281 member_def(perf_record_comm, tid, T_UINT, "event tid"),
282 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
283 { .name = NULL, },
284};
285
286static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
287{
288 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
289 pevent->event.comm.pid,
290 pevent->event.comm.tid,
291 pevent->event.comm.comm);
292}
293
294static PyTypeObject pyrf_comm_event__type = {
295 PyVarObject_HEAD_INIT(NULL, 0)
296 .tp_name = "perf.comm_event",
297 .tp_basicsize = sizeof(struct pyrf_event),
298 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
299 .tp_doc = pyrf_comm_event__doc,
300 .tp_members = pyrf_comm_event__members,
301 .tp_repr = (reprfunc)pyrf_comm_event__repr,
302};
303
304static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
305
306static PyMemberDef pyrf_throttle_event__members[] = {
307 sample_members
308 member_def(perf_event_header, type, T_UINT, "event type"),
309 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
310 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
311 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
312 { .name = NULL, },
313};
314
315static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
316{
317 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
318
319 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
320 ", stream_id: %" PRI_lu64 " }",
321 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
322 te->time, te->id, te->stream_id);
323}
324
325static PyTypeObject pyrf_throttle_event__type = {
326 PyVarObject_HEAD_INIT(NULL, 0)
327 .tp_name = "perf.throttle_event",
328 .tp_basicsize = sizeof(struct pyrf_event),
329 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
330 .tp_doc = pyrf_throttle_event__doc,
331 .tp_members = pyrf_throttle_event__members,
332 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
333};
334
335static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
336
337static PyMemberDef pyrf_lost_event__members[] = {
338 sample_members
339 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
340 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
341 { .name = NULL, },
342};
343
344static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
345{
346 PyObject *ret;
347 char *s;
348
349 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
350 "lost: %#" PRI_lx64 " }",
351 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
352 ret = PyErr_NoMemory();
353 } else {
354 ret = _PyUnicode_FromString(s);
355 free(s);
356 }
357 return ret;
358}
359
360static PyTypeObject pyrf_lost_event__type = {
361 PyVarObject_HEAD_INIT(NULL, 0)
362 .tp_name = "perf.lost_event",
363 .tp_basicsize = sizeof(struct pyrf_event),
364 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
365 .tp_doc = pyrf_lost_event__doc,
366 .tp_members = pyrf_lost_event__members,
367 .tp_repr = (reprfunc)pyrf_lost_event__repr,
368};
369
370static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
371
372static PyMemberDef pyrf_read_event__members[] = {
373 sample_members
374 member_def(perf_record_read, pid, T_UINT, "event pid"),
375 member_def(perf_record_read, tid, T_UINT, "event tid"),
376 { .name = NULL, },
377};
378
379static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
380{
381 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
382 pevent->event.read.pid,
383 pevent->event.read.tid);
384 /*
385 * FIXME: return the array of read values,
386 * making this method useful ;-)
387 */
388}
389
390static PyTypeObject pyrf_read_event__type = {
391 PyVarObject_HEAD_INIT(NULL, 0)
392 .tp_name = "perf.read_event",
393 .tp_basicsize = sizeof(struct pyrf_event),
394 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
395 .tp_doc = pyrf_read_event__doc,
396 .tp_members = pyrf_read_event__members,
397 .tp_repr = (reprfunc)pyrf_read_event__repr,
398};
399
400static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
401
402static PyMemberDef pyrf_sample_event__members[] = {
403 sample_members
404 member_def(perf_event_header, type, T_UINT, "event type"),
405 { .name = NULL, },
406};
407
408static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
409{
410 PyObject *ret;
411 char *s;
412
413 if (asprintf(&s, "{ type: sample }") < 0) {
414 ret = PyErr_NoMemory();
415 } else {
416 ret = _PyUnicode_FromString(s);
417 free(s);
418 }
419 return ret;
420}
421
422#ifdef HAVE_LIBTRACEEVENT
423static bool is_tracepoint(struct pyrf_event *pevent)
424{
425 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
426}
427
428static PyObject*
429tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
430{
431 struct tep_handle *pevent = field->event->tep;
432 void *data = pe->sample.raw_data;
433 PyObject *ret = NULL;
434 unsigned long long val;
435 unsigned int offset, len;
436
437 if (field->flags & TEP_FIELD_IS_ARRAY) {
438 offset = field->offset;
439 len = field->size;
440 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
441 val = tep_read_number(pevent, data + offset, len);
442 offset = val;
443 len = offset >> 16;
444 offset &= 0xffff;
445#ifdef HAVE_LIBTRACEEVENT_TEP_FIELD_IS_RELATIVE
446 if (field->flags & TEP_FIELD_IS_RELATIVE)
447 offset += field->offset + field->size;
448#endif
449 }
450 if (field->flags & TEP_FIELD_IS_STRING &&
451 is_printable_array(data + offset, len)) {
452 ret = _PyUnicode_FromString((char *)data + offset);
453 } else {
454 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
455 field->flags &= ~TEP_FIELD_IS_STRING;
456 }
457 } else {
458 val = tep_read_number(pevent, data + field->offset,
459 field->size);
460 if (field->flags & TEP_FIELD_IS_POINTER)
461 ret = PyLong_FromUnsignedLong((unsigned long) val);
462 else if (field->flags & TEP_FIELD_IS_SIGNED)
463 ret = PyLong_FromLong((long) val);
464 else
465 ret = PyLong_FromUnsignedLong((unsigned long) val);
466 }
467
468 return ret;
469}
470
471static PyObject*
472get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
473{
474 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
475 struct evsel *evsel = pevent->evsel;
476 struct tep_format_field *field;
477
478 if (!evsel->tp_format) {
479 struct tep_event *tp_format;
480
481 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
482 if (IS_ERR_OR_NULL(tp_format))
483 return NULL;
484
485 evsel->tp_format = tp_format;
486 }
487
488 field = tep_find_any_field(evsel->tp_format, str);
489 if (!field)
490 return NULL;
491
492 return tracepoint_field(pevent, field);
493}
494#endif /* HAVE_LIBTRACEEVENT */
495
496static PyObject*
497pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
498{
499 PyObject *obj = NULL;
500
501#ifdef HAVE_LIBTRACEEVENT
502 if (is_tracepoint(pevent))
503 obj = get_tracepoint_field(pevent, attr_name);
504#endif
505
506 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
507}
508
509static PyTypeObject pyrf_sample_event__type = {
510 PyVarObject_HEAD_INIT(NULL, 0)
511 .tp_name = "perf.sample_event",
512 .tp_basicsize = sizeof(struct pyrf_event),
513 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
514 .tp_doc = pyrf_sample_event__doc,
515 .tp_members = pyrf_sample_event__members,
516 .tp_repr = (reprfunc)pyrf_sample_event__repr,
517 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
518};
519
520static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
521
522static PyMemberDef pyrf_context_switch_event__members[] = {
523 sample_members
524 member_def(perf_event_header, type, T_UINT, "event type"),
525 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
526 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
527 { .name = NULL, },
528};
529
530static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
531{
532 PyObject *ret;
533 char *s;
534
535 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
536 pevent->event.context_switch.next_prev_pid,
537 pevent->event.context_switch.next_prev_tid,
538 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
539 ret = PyErr_NoMemory();
540 } else {
541 ret = _PyUnicode_FromString(s);
542 free(s);
543 }
544 return ret;
545}
546
547static PyTypeObject pyrf_context_switch_event__type = {
548 PyVarObject_HEAD_INIT(NULL, 0)
549 .tp_name = "perf.context_switch_event",
550 .tp_basicsize = sizeof(struct pyrf_event),
551 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
552 .tp_doc = pyrf_context_switch_event__doc,
553 .tp_members = pyrf_context_switch_event__members,
554 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
555};
556
557static int pyrf_event__setup_types(void)
558{
559 int err;
560 pyrf_mmap_event__type.tp_new =
561 pyrf_task_event__type.tp_new =
562 pyrf_comm_event__type.tp_new =
563 pyrf_lost_event__type.tp_new =
564 pyrf_read_event__type.tp_new =
565 pyrf_sample_event__type.tp_new =
566 pyrf_context_switch_event__type.tp_new =
567 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
568 err = PyType_Ready(&pyrf_mmap_event__type);
569 if (err < 0)
570 goto out;
571 err = PyType_Ready(&pyrf_lost_event__type);
572 if (err < 0)
573 goto out;
574 err = PyType_Ready(&pyrf_task_event__type);
575 if (err < 0)
576 goto out;
577 err = PyType_Ready(&pyrf_comm_event__type);
578 if (err < 0)
579 goto out;
580 err = PyType_Ready(&pyrf_throttle_event__type);
581 if (err < 0)
582 goto out;
583 err = PyType_Ready(&pyrf_read_event__type);
584 if (err < 0)
585 goto out;
586 err = PyType_Ready(&pyrf_sample_event__type);
587 if (err < 0)
588 goto out;
589 err = PyType_Ready(&pyrf_context_switch_event__type);
590 if (err < 0)
591 goto out;
592out:
593 return err;
594}
595
596static PyTypeObject *pyrf_event__type[] = {
597 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
598 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
599 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
600 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
601 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
602 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
603 [PERF_RECORD_FORK] = &pyrf_task_event__type,
604 [PERF_RECORD_READ] = &pyrf_read_event__type,
605 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
606 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
607 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
608};
609
610static PyObject *pyrf_event__new(union perf_event *event)
611{
612 struct pyrf_event *pevent;
613 PyTypeObject *ptype;
614
615 if ((event->header.type < PERF_RECORD_MMAP ||
616 event->header.type > PERF_RECORD_SAMPLE) &&
617 !(event->header.type == PERF_RECORD_SWITCH ||
618 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
619 return NULL;
620
621 ptype = pyrf_event__type[event->header.type];
622 pevent = PyObject_New(struct pyrf_event, ptype);
623 if (pevent != NULL)
624 memcpy(&pevent->event, event, event->header.size);
625 return (PyObject *)pevent;
626}
627
628struct pyrf_cpu_map {
629 PyObject_HEAD
630
631 struct perf_cpu_map *cpus;
632};
633
634static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
635 PyObject *args, PyObject *kwargs)
636{
637 static char *kwlist[] = { "cpustr", NULL };
638 char *cpustr = NULL;
639
640 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
641 kwlist, &cpustr))
642 return -1;
643
644 pcpus->cpus = perf_cpu_map__new(cpustr);
645 if (pcpus->cpus == NULL)
646 return -1;
647 return 0;
648}
649
650static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
651{
652 perf_cpu_map__put(pcpus->cpus);
653 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
654}
655
656static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
657{
658 struct pyrf_cpu_map *pcpus = (void *)obj;
659
660 return perf_cpu_map__nr(pcpus->cpus);
661}
662
663static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
664{
665 struct pyrf_cpu_map *pcpus = (void *)obj;
666
667 if (i >= perf_cpu_map__nr(pcpus->cpus))
668 return NULL;
669
670 return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
671}
672
673static PySequenceMethods pyrf_cpu_map__sequence_methods = {
674 .sq_length = pyrf_cpu_map__length,
675 .sq_item = pyrf_cpu_map__item,
676};
677
678static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
679
680static PyTypeObject pyrf_cpu_map__type = {
681 PyVarObject_HEAD_INIT(NULL, 0)
682 .tp_name = "perf.cpu_map",
683 .tp_basicsize = sizeof(struct pyrf_cpu_map),
684 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
685 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
686 .tp_doc = pyrf_cpu_map__doc,
687 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
688 .tp_init = (initproc)pyrf_cpu_map__init,
689};
690
691static int pyrf_cpu_map__setup_types(void)
692{
693 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
694 return PyType_Ready(&pyrf_cpu_map__type);
695}
696
697struct pyrf_thread_map {
698 PyObject_HEAD
699
700 struct perf_thread_map *threads;
701};
702
703static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
704 PyObject *args, PyObject *kwargs)
705{
706 static char *kwlist[] = { "pid", "tid", "uid", NULL };
707 int pid = -1, tid = -1, uid = UINT_MAX;
708
709 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
710 kwlist, &pid, &tid, &uid))
711 return -1;
712
713 pthreads->threads = thread_map__new(pid, tid, uid);
714 if (pthreads->threads == NULL)
715 return -1;
716 return 0;
717}
718
719static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
720{
721 perf_thread_map__put(pthreads->threads);
722 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
723}
724
725static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
726{
727 struct pyrf_thread_map *pthreads = (void *)obj;
728
729 return perf_thread_map__nr(pthreads->threads);
730}
731
732static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
733{
734 struct pyrf_thread_map *pthreads = (void *)obj;
735
736 if (i >= perf_thread_map__nr(pthreads->threads))
737 return NULL;
738
739 return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
740}
741
742static PySequenceMethods pyrf_thread_map__sequence_methods = {
743 .sq_length = pyrf_thread_map__length,
744 .sq_item = pyrf_thread_map__item,
745};
746
747static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
748
749static PyTypeObject pyrf_thread_map__type = {
750 PyVarObject_HEAD_INIT(NULL, 0)
751 .tp_name = "perf.thread_map",
752 .tp_basicsize = sizeof(struct pyrf_thread_map),
753 .tp_dealloc = (destructor)pyrf_thread_map__delete,
754 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
755 .tp_doc = pyrf_thread_map__doc,
756 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
757 .tp_init = (initproc)pyrf_thread_map__init,
758};
759
760static int pyrf_thread_map__setup_types(void)
761{
762 pyrf_thread_map__type.tp_new = PyType_GenericNew;
763 return PyType_Ready(&pyrf_thread_map__type);
764}
765
766struct pyrf_evsel {
767 PyObject_HEAD
768
769 struct evsel evsel;
770};
771
772static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
773 PyObject *args, PyObject *kwargs)
774{
775 struct perf_event_attr attr = {
776 .type = PERF_TYPE_HARDWARE,
777 .config = PERF_COUNT_HW_CPU_CYCLES,
778 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
779 };
780 static char *kwlist[] = {
781 "type",
782 "config",
783 "sample_freq",
784 "sample_period",
785 "sample_type",
786 "read_format",
787 "disabled",
788 "inherit",
789 "pinned",
790 "exclusive",
791 "exclude_user",
792 "exclude_kernel",
793 "exclude_hv",
794 "exclude_idle",
795 "mmap",
796 "context_switch",
797 "comm",
798 "freq",
799 "inherit_stat",
800 "enable_on_exec",
801 "task",
802 "watermark",
803 "precise_ip",
804 "mmap_data",
805 "sample_id_all",
806 "wakeup_events",
807 "bp_type",
808 "bp_addr",
809 "bp_len",
810 NULL
811 };
812 u64 sample_period = 0;
813 u32 disabled = 0,
814 inherit = 0,
815 pinned = 0,
816 exclusive = 0,
817 exclude_user = 0,
818 exclude_kernel = 0,
819 exclude_hv = 0,
820 exclude_idle = 0,
821 mmap = 0,
822 context_switch = 0,
823 comm = 0,
824 freq = 1,
825 inherit_stat = 0,
826 enable_on_exec = 0,
827 task = 0,
828 watermark = 0,
829 precise_ip = 0,
830 mmap_data = 0,
831 sample_id_all = 1;
832 int idx = 0;
833
834 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
835 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
836 &attr.type, &attr.config, &attr.sample_freq,
837 &sample_period, &attr.sample_type,
838 &attr.read_format, &disabled, &inherit,
839 &pinned, &exclusive, &exclude_user,
840 &exclude_kernel, &exclude_hv, &exclude_idle,
841 &mmap, &context_switch, &comm, &freq, &inherit_stat,
842 &enable_on_exec, &task, &watermark,
843 &precise_ip, &mmap_data, &sample_id_all,
844 &attr.wakeup_events, &attr.bp_type,
845 &attr.bp_addr, &attr.bp_len, &idx))
846 return -1;
847
848 /* union... */
849 if (sample_period != 0) {
850 if (attr.sample_freq != 0)
851 return -1; /* FIXME: throw right exception */
852 attr.sample_period = sample_period;
853 }
854
855 /* Bitfields */
856 attr.disabled = disabled;
857 attr.inherit = inherit;
858 attr.pinned = pinned;
859 attr.exclusive = exclusive;
860 attr.exclude_user = exclude_user;
861 attr.exclude_kernel = exclude_kernel;
862 attr.exclude_hv = exclude_hv;
863 attr.exclude_idle = exclude_idle;
864 attr.mmap = mmap;
865 attr.context_switch = context_switch;
866 attr.comm = comm;
867 attr.freq = freq;
868 attr.inherit_stat = inherit_stat;
869 attr.enable_on_exec = enable_on_exec;
870 attr.task = task;
871 attr.watermark = watermark;
872 attr.precise_ip = precise_ip;
873 attr.mmap_data = mmap_data;
874 attr.sample_id_all = sample_id_all;
875 attr.size = sizeof(attr);
876
877 evsel__init(&pevsel->evsel, &attr, idx);
878 return 0;
879}
880
881static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
882{
883 evsel__exit(&pevsel->evsel);
884 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
885}
886
887static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
888 PyObject *args, PyObject *kwargs)
889{
890 struct evsel *evsel = &pevsel->evsel;
891 struct perf_cpu_map *cpus = NULL;
892 struct perf_thread_map *threads = NULL;
893 PyObject *pcpus = NULL, *pthreads = NULL;
894 int group = 0, inherit = 0;
895 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
896
897 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
898 &pcpus, &pthreads, &group, &inherit))
899 return NULL;
900
901 if (pthreads != NULL)
902 threads = ((struct pyrf_thread_map *)pthreads)->threads;
903
904 if (pcpus != NULL)
905 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
906
907 evsel->core.attr.inherit = inherit;
908 /*
909 * This will group just the fds for this single evsel, to group
910 * multiple events, use evlist.open().
911 */
912 if (evsel__open(evsel, cpus, threads) < 0) {
913 PyErr_SetFromErrno(PyExc_OSError);
914 return NULL;
915 }
916
917 Py_INCREF(Py_None);
918 return Py_None;
919}
920
921static PyMethodDef pyrf_evsel__methods[] = {
922 {
923 .ml_name = "open",
924 .ml_meth = (PyCFunction)pyrf_evsel__open,
925 .ml_flags = METH_VARARGS | METH_KEYWORDS,
926 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
927 },
928 { .ml_name = NULL, }
929};
930
931static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
932
933static PyTypeObject pyrf_evsel__type = {
934 PyVarObject_HEAD_INIT(NULL, 0)
935 .tp_name = "perf.evsel",
936 .tp_basicsize = sizeof(struct pyrf_evsel),
937 .tp_dealloc = (destructor)pyrf_evsel__delete,
938 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
939 .tp_doc = pyrf_evsel__doc,
940 .tp_methods = pyrf_evsel__methods,
941 .tp_init = (initproc)pyrf_evsel__init,
942};
943
944static int pyrf_evsel__setup_types(void)
945{
946 pyrf_evsel__type.tp_new = PyType_GenericNew;
947 return PyType_Ready(&pyrf_evsel__type);
948}
949
950struct pyrf_evlist {
951 PyObject_HEAD
952
953 struct evlist evlist;
954};
955
956static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
957 PyObject *args, PyObject *kwargs __maybe_unused)
958{
959 PyObject *pcpus = NULL, *pthreads = NULL;
960 struct perf_cpu_map *cpus;
961 struct perf_thread_map *threads;
962
963 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
964 return -1;
965
966 threads = ((struct pyrf_thread_map *)pthreads)->threads;
967 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
968 evlist__init(&pevlist->evlist, cpus, threads);
969 return 0;
970}
971
972static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
973{
974 evlist__exit(&pevlist->evlist);
975 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
976}
977
978static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
979 PyObject *args, PyObject *kwargs)
980{
981 struct evlist *evlist = &pevlist->evlist;
982 static char *kwlist[] = { "pages", "overwrite", NULL };
983 int pages = 128, overwrite = false;
984
985 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
986 &pages, &overwrite))
987 return NULL;
988
989 if (evlist__mmap(evlist, pages) < 0) {
990 PyErr_SetFromErrno(PyExc_OSError);
991 return NULL;
992 }
993
994 Py_INCREF(Py_None);
995 return Py_None;
996}
997
998static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
999 PyObject *args, PyObject *kwargs)
1000{
1001 struct evlist *evlist = &pevlist->evlist;
1002 static char *kwlist[] = { "timeout", NULL };
1003 int timeout = -1, n;
1004
1005 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
1006 return NULL;
1007
1008 n = evlist__poll(evlist, timeout);
1009 if (n < 0) {
1010 PyErr_SetFromErrno(PyExc_OSError);
1011 return NULL;
1012 }
1013
1014 return Py_BuildValue("i", n);
1015}
1016
1017static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
1018 PyObject *args __maybe_unused,
1019 PyObject *kwargs __maybe_unused)
1020{
1021 struct evlist *evlist = &pevlist->evlist;
1022 PyObject *list = PyList_New(0);
1023 int i;
1024
1025 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
1026 PyObject *file;
1027#if PY_MAJOR_VERSION < 3
1028 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
1029
1030 if (fp == NULL)
1031 goto free_list;
1032
1033 file = PyFile_FromFile(fp, "perf", "r", NULL);
1034#else
1035 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
1036 NULL, NULL, NULL, 0);
1037#endif
1038 if (file == NULL)
1039 goto free_list;
1040
1041 if (PyList_Append(list, file) != 0) {
1042 Py_DECREF(file);
1043 goto free_list;
1044 }
1045
1046 Py_DECREF(file);
1047 }
1048
1049 return list;
1050free_list:
1051 return PyErr_NoMemory();
1052}
1053
1054
1055static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
1056 PyObject *args,
1057 PyObject *kwargs __maybe_unused)
1058{
1059 struct evlist *evlist = &pevlist->evlist;
1060 PyObject *pevsel;
1061 struct evsel *evsel;
1062
1063 if (!PyArg_ParseTuple(args, "O", &pevsel))
1064 return NULL;
1065
1066 Py_INCREF(pevsel);
1067 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
1068 evsel->core.idx = evlist->core.nr_entries;
1069 evlist__add(evlist, evsel);
1070
1071 return Py_BuildValue("i", evlist->core.nr_entries);
1072}
1073
1074static struct mmap *get_md(struct evlist *evlist, int cpu)
1075{
1076 int i;
1077
1078 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1079 struct mmap *md = &evlist->mmap[i];
1080
1081 if (md->core.cpu.cpu == cpu)
1082 return md;
1083 }
1084
1085 return NULL;
1086}
1087
1088static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1089 PyObject *args, PyObject *kwargs)
1090{
1091 struct evlist *evlist = &pevlist->evlist;
1092 union perf_event *event;
1093 int sample_id_all = 1, cpu;
1094 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1095 struct mmap *md;
1096 int err;
1097
1098 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1099 &cpu, &sample_id_all))
1100 return NULL;
1101
1102 md = get_md(evlist, cpu);
1103 if (!md)
1104 return NULL;
1105
1106 if (perf_mmap__read_init(&md->core) < 0)
1107 goto end;
1108
1109 event = perf_mmap__read_event(&md->core);
1110 if (event != NULL) {
1111 PyObject *pyevent = pyrf_event__new(event);
1112 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1113 struct evsel *evsel;
1114
1115 if (pyevent == NULL)
1116 return PyErr_NoMemory();
1117
1118 evsel = evlist__event2evsel(evlist, event);
1119 if (!evsel) {
1120 Py_INCREF(Py_None);
1121 return Py_None;
1122 }
1123
1124 pevent->evsel = evsel;
1125
1126 err = evsel__parse_sample(evsel, event, &pevent->sample);
1127
1128 /* Consume the even only after we parsed it out. */
1129 perf_mmap__consume(&md->core);
1130
1131 if (err)
1132 return PyErr_Format(PyExc_OSError,
1133 "perf: can't parse sample, err=%d", err);
1134 return pyevent;
1135 }
1136end:
1137 Py_INCREF(Py_None);
1138 return Py_None;
1139}
1140
1141static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1142 PyObject *args, PyObject *kwargs)
1143{
1144 struct evlist *evlist = &pevlist->evlist;
1145
1146 if (evlist__open(evlist) < 0) {
1147 PyErr_SetFromErrno(PyExc_OSError);
1148 return NULL;
1149 }
1150
1151 Py_INCREF(Py_None);
1152 return Py_None;
1153}
1154
1155static PyMethodDef pyrf_evlist__methods[] = {
1156 {
1157 .ml_name = "mmap",
1158 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1159 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1160 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1161 },
1162 {
1163 .ml_name = "open",
1164 .ml_meth = (PyCFunction)pyrf_evlist__open,
1165 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1166 .ml_doc = PyDoc_STR("open the file descriptors.")
1167 },
1168 {
1169 .ml_name = "poll",
1170 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1171 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1172 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1173 },
1174 {
1175 .ml_name = "get_pollfd",
1176 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1177 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1178 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1179 },
1180 {
1181 .ml_name = "add",
1182 .ml_meth = (PyCFunction)pyrf_evlist__add,
1183 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1184 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1185 },
1186 {
1187 .ml_name = "read_on_cpu",
1188 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1189 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1190 .ml_doc = PyDoc_STR("reads an event.")
1191 },
1192 { .ml_name = NULL, }
1193};
1194
1195static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1196{
1197 struct pyrf_evlist *pevlist = (void *)obj;
1198
1199 return pevlist->evlist.core.nr_entries;
1200}
1201
1202static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1203{
1204 struct pyrf_evlist *pevlist = (void *)obj;
1205 struct evsel *pos;
1206
1207 if (i >= pevlist->evlist.core.nr_entries)
1208 return NULL;
1209
1210 evlist__for_each_entry(&pevlist->evlist, pos) {
1211 if (i-- == 0)
1212 break;
1213 }
1214
1215 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1216}
1217
1218static PySequenceMethods pyrf_evlist__sequence_methods = {
1219 .sq_length = pyrf_evlist__length,
1220 .sq_item = pyrf_evlist__item,
1221};
1222
1223static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1224
1225static PyTypeObject pyrf_evlist__type = {
1226 PyVarObject_HEAD_INIT(NULL, 0)
1227 .tp_name = "perf.evlist",
1228 .tp_basicsize = sizeof(struct pyrf_evlist),
1229 .tp_dealloc = (destructor)pyrf_evlist__delete,
1230 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1231 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1232 .tp_doc = pyrf_evlist__doc,
1233 .tp_methods = pyrf_evlist__methods,
1234 .tp_init = (initproc)pyrf_evlist__init,
1235};
1236
1237static int pyrf_evlist__setup_types(void)
1238{
1239 pyrf_evlist__type.tp_new = PyType_GenericNew;
1240 return PyType_Ready(&pyrf_evlist__type);
1241}
1242
1243#define PERF_CONST(name) { #name, PERF_##name }
1244
1245static struct {
1246 const char *name;
1247 int value;
1248} perf__constants[] = {
1249 PERF_CONST(TYPE_HARDWARE),
1250 PERF_CONST(TYPE_SOFTWARE),
1251 PERF_CONST(TYPE_TRACEPOINT),
1252 PERF_CONST(TYPE_HW_CACHE),
1253 PERF_CONST(TYPE_RAW),
1254 PERF_CONST(TYPE_BREAKPOINT),
1255
1256 PERF_CONST(COUNT_HW_CPU_CYCLES),
1257 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1258 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1259 PERF_CONST(COUNT_HW_CACHE_MISSES),
1260 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1261 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1262 PERF_CONST(COUNT_HW_BUS_CYCLES),
1263 PERF_CONST(COUNT_HW_CACHE_L1D),
1264 PERF_CONST(COUNT_HW_CACHE_L1I),
1265 PERF_CONST(COUNT_HW_CACHE_LL),
1266 PERF_CONST(COUNT_HW_CACHE_DTLB),
1267 PERF_CONST(COUNT_HW_CACHE_ITLB),
1268 PERF_CONST(COUNT_HW_CACHE_BPU),
1269 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1270 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1271 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1272 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1273 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1274
1275 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1276 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1277
1278 PERF_CONST(COUNT_SW_CPU_CLOCK),
1279 PERF_CONST(COUNT_SW_TASK_CLOCK),
1280 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1281 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1282 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1283 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1284 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1285 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1286 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1287 PERF_CONST(COUNT_SW_DUMMY),
1288
1289 PERF_CONST(SAMPLE_IP),
1290 PERF_CONST(SAMPLE_TID),
1291 PERF_CONST(SAMPLE_TIME),
1292 PERF_CONST(SAMPLE_ADDR),
1293 PERF_CONST(SAMPLE_READ),
1294 PERF_CONST(SAMPLE_CALLCHAIN),
1295 PERF_CONST(SAMPLE_ID),
1296 PERF_CONST(SAMPLE_CPU),
1297 PERF_CONST(SAMPLE_PERIOD),
1298 PERF_CONST(SAMPLE_STREAM_ID),
1299 PERF_CONST(SAMPLE_RAW),
1300
1301 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1302 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1303 PERF_CONST(FORMAT_ID),
1304 PERF_CONST(FORMAT_GROUP),
1305
1306 PERF_CONST(RECORD_MMAP),
1307 PERF_CONST(RECORD_LOST),
1308 PERF_CONST(RECORD_COMM),
1309 PERF_CONST(RECORD_EXIT),
1310 PERF_CONST(RECORD_THROTTLE),
1311 PERF_CONST(RECORD_UNTHROTTLE),
1312 PERF_CONST(RECORD_FORK),
1313 PERF_CONST(RECORD_READ),
1314 PERF_CONST(RECORD_SAMPLE),
1315 PERF_CONST(RECORD_MMAP2),
1316 PERF_CONST(RECORD_AUX),
1317 PERF_CONST(RECORD_ITRACE_START),
1318 PERF_CONST(RECORD_LOST_SAMPLES),
1319 PERF_CONST(RECORD_SWITCH),
1320 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1321
1322 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1323 { .name = NULL, },
1324};
1325
1326static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1327 PyObject *args, PyObject *kwargs)
1328{
1329#ifndef HAVE_LIBTRACEEVENT
1330 return NULL;
1331#else
1332 struct tep_event *tp_format;
1333 static char *kwlist[] = { "sys", "name", NULL };
1334 char *sys = NULL;
1335 char *name = NULL;
1336
1337 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1338 &sys, &name))
1339 return NULL;
1340
1341 tp_format = trace_event__tp_format(sys, name);
1342 if (IS_ERR(tp_format))
1343 return _PyLong_FromLong(-1);
1344
1345 return _PyLong_FromLong(tp_format->id);
1346#endif // HAVE_LIBTRACEEVENT
1347}
1348
1349static PyMethodDef perf__methods[] = {
1350 {
1351 .ml_name = "tracepoint",
1352 .ml_meth = (PyCFunction) pyrf__tracepoint,
1353 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1354 .ml_doc = PyDoc_STR("Get tracepoint config.")
1355 },
1356 { .ml_name = NULL, }
1357};
1358
1359#if PY_MAJOR_VERSION < 3
1360PyMODINIT_FUNC initperf(void)
1361#else
1362PyMODINIT_FUNC PyInit_perf(void)
1363#endif
1364{
1365 PyObject *obj;
1366 int i;
1367 PyObject *dict;
1368#if PY_MAJOR_VERSION < 3
1369 PyObject *module = Py_InitModule("perf", perf__methods);
1370#else
1371 static struct PyModuleDef moduledef = {
1372 PyModuleDef_HEAD_INIT,
1373 "perf", /* m_name */
1374 "", /* m_doc */
1375 -1, /* m_size */
1376 perf__methods, /* m_methods */
1377 NULL, /* m_reload */
1378 NULL, /* m_traverse */
1379 NULL, /* m_clear */
1380 NULL, /* m_free */
1381 };
1382 PyObject *module = PyModule_Create(&moduledef);
1383#endif
1384
1385 if (module == NULL ||
1386 pyrf_event__setup_types() < 0 ||
1387 pyrf_evlist__setup_types() < 0 ||
1388 pyrf_evsel__setup_types() < 0 ||
1389 pyrf_thread_map__setup_types() < 0 ||
1390 pyrf_cpu_map__setup_types() < 0)
1391#if PY_MAJOR_VERSION < 3
1392 return;
1393#else
1394 return module;
1395#endif
1396
1397 /* The page_size is placed in util object. */
1398 page_size = sysconf(_SC_PAGE_SIZE);
1399
1400 Py_INCREF(&pyrf_evlist__type);
1401 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1402
1403 Py_INCREF(&pyrf_evsel__type);
1404 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1405
1406 Py_INCREF(&pyrf_mmap_event__type);
1407 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1408
1409 Py_INCREF(&pyrf_lost_event__type);
1410 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1411
1412 Py_INCREF(&pyrf_comm_event__type);
1413 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1414
1415 Py_INCREF(&pyrf_task_event__type);
1416 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1417
1418 Py_INCREF(&pyrf_throttle_event__type);
1419 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1420
1421 Py_INCREF(&pyrf_task_event__type);
1422 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1423
1424 Py_INCREF(&pyrf_read_event__type);
1425 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1426
1427 Py_INCREF(&pyrf_sample_event__type);
1428 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1429
1430 Py_INCREF(&pyrf_context_switch_event__type);
1431 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1432
1433 Py_INCREF(&pyrf_thread_map__type);
1434 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1435
1436 Py_INCREF(&pyrf_cpu_map__type);
1437 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1438
1439 dict = PyModule_GetDict(module);
1440 if (dict == NULL)
1441 goto error;
1442
1443 for (i = 0; perf__constants[i].name != NULL; i++) {
1444 obj = _PyLong_FromLong(perf__constants[i].value);
1445 if (obj == NULL)
1446 goto error;
1447 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1448 Py_DECREF(obj);
1449 }
1450
1451error:
1452 if (PyErr_Occurred())
1453 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1454#if PY_MAJOR_VERSION >= 3
1455 return module;
1456#endif
1457}
1458
1459/*
1460 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1461 * binding.
1462 */
1463void test_attr__open(struct perf_event_attr *attr, pid_t pid, struct perf_cpu cpu,
1464 int fd, int group_fd, unsigned long flags)
1465{
1466}
1#include <Python.h>
2#include <structmember.h>
3#include <inttypes.h>
4#include <poll.h>
5#include <linux/err.h>
6#include "evlist.h"
7#include "evsel.h"
8#include "event.h"
9#include "cpumap.h"
10#include "thread_map.h"
11
12/*
13 * Support debug printing even though util/debug.c is not linked. That means
14 * implementing 'verbose' and 'eprintf'.
15 */
16int verbose;
17
18int eprintf(int level, int var, const char *fmt, ...)
19{
20 va_list args;
21 int ret = 0;
22
23 if (var >= level) {
24 va_start(args, fmt);
25 ret = vfprintf(stderr, fmt, args);
26 va_end(args);
27 }
28
29 return ret;
30}
31
32/* Define PyVarObject_HEAD_INIT for python 2.5 */
33#ifndef PyVarObject_HEAD_INIT
34# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
35#endif
36
37PyMODINIT_FUNC initperf(void);
38
39#define member_def(type, member, ptype, help) \
40 { #member, ptype, \
41 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
42 0, help }
43
44#define sample_member_def(name, member, ptype, help) \
45 { #name, ptype, \
46 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
47 0, help }
48
49struct pyrf_event {
50 PyObject_HEAD
51 struct perf_evsel *evsel;
52 struct perf_sample sample;
53 union perf_event event;
54};
55
56#define sample_members \
57 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
58 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
59 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
60 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
61 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
62 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
63 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
64 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
65 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
66
67static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
68
69static PyMemberDef pyrf_mmap_event__members[] = {
70 sample_members
71 member_def(perf_event_header, type, T_UINT, "event type"),
72 member_def(perf_event_header, misc, T_UINT, "event misc"),
73 member_def(mmap_event, pid, T_UINT, "event pid"),
74 member_def(mmap_event, tid, T_UINT, "event tid"),
75 member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
76 member_def(mmap_event, len, T_ULONGLONG, "map length"),
77 member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
78 member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
79 { .name = NULL, },
80};
81
82static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
83{
84 PyObject *ret;
85 char *s;
86
87 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
88 "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
89 "filename: %s }",
90 pevent->event.mmap.pid, pevent->event.mmap.tid,
91 pevent->event.mmap.start, pevent->event.mmap.len,
92 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
93 ret = PyErr_NoMemory();
94 } else {
95 ret = PyString_FromString(s);
96 free(s);
97 }
98 return ret;
99}
100
101static PyTypeObject pyrf_mmap_event__type = {
102 PyVarObject_HEAD_INIT(NULL, 0)
103 .tp_name = "perf.mmap_event",
104 .tp_basicsize = sizeof(struct pyrf_event),
105 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
106 .tp_doc = pyrf_mmap_event__doc,
107 .tp_members = pyrf_mmap_event__members,
108 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
109};
110
111static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
112
113static PyMemberDef pyrf_task_event__members[] = {
114 sample_members
115 member_def(perf_event_header, type, T_UINT, "event type"),
116 member_def(fork_event, pid, T_UINT, "event pid"),
117 member_def(fork_event, ppid, T_UINT, "event ppid"),
118 member_def(fork_event, tid, T_UINT, "event tid"),
119 member_def(fork_event, ptid, T_UINT, "event ptid"),
120 member_def(fork_event, time, T_ULONGLONG, "timestamp"),
121 { .name = NULL, },
122};
123
124static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
125{
126 return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
127 "ptid: %u, time: %" PRIu64 "}",
128 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
129 pevent->event.fork.pid,
130 pevent->event.fork.ppid,
131 pevent->event.fork.tid,
132 pevent->event.fork.ptid,
133 pevent->event.fork.time);
134}
135
136static PyTypeObject pyrf_task_event__type = {
137 PyVarObject_HEAD_INIT(NULL, 0)
138 .tp_name = "perf.task_event",
139 .tp_basicsize = sizeof(struct pyrf_event),
140 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
141 .tp_doc = pyrf_task_event__doc,
142 .tp_members = pyrf_task_event__members,
143 .tp_repr = (reprfunc)pyrf_task_event__repr,
144};
145
146static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
147
148static PyMemberDef pyrf_comm_event__members[] = {
149 sample_members
150 member_def(perf_event_header, type, T_UINT, "event type"),
151 member_def(comm_event, pid, T_UINT, "event pid"),
152 member_def(comm_event, tid, T_UINT, "event tid"),
153 member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
154 { .name = NULL, },
155};
156
157static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
158{
159 return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
160 pevent->event.comm.pid,
161 pevent->event.comm.tid,
162 pevent->event.comm.comm);
163}
164
165static PyTypeObject pyrf_comm_event__type = {
166 PyVarObject_HEAD_INIT(NULL, 0)
167 .tp_name = "perf.comm_event",
168 .tp_basicsize = sizeof(struct pyrf_event),
169 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
170 .tp_doc = pyrf_comm_event__doc,
171 .tp_members = pyrf_comm_event__members,
172 .tp_repr = (reprfunc)pyrf_comm_event__repr,
173};
174
175static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
176
177static PyMemberDef pyrf_throttle_event__members[] = {
178 sample_members
179 member_def(perf_event_header, type, T_UINT, "event type"),
180 member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
181 member_def(throttle_event, id, T_ULONGLONG, "event id"),
182 member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
183 { .name = NULL, },
184};
185
186static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
187{
188 struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
189
190 return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
191 ", stream_id: %" PRIu64 " }",
192 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
193 te->time, te->id, te->stream_id);
194}
195
196static PyTypeObject pyrf_throttle_event__type = {
197 PyVarObject_HEAD_INIT(NULL, 0)
198 .tp_name = "perf.throttle_event",
199 .tp_basicsize = sizeof(struct pyrf_event),
200 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
201 .tp_doc = pyrf_throttle_event__doc,
202 .tp_members = pyrf_throttle_event__members,
203 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
204};
205
206static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
207
208static PyMemberDef pyrf_lost_event__members[] = {
209 sample_members
210 member_def(lost_event, id, T_ULONGLONG, "event id"),
211 member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
212 { .name = NULL, },
213};
214
215static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
216{
217 PyObject *ret;
218 char *s;
219
220 if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
221 "lost: %#" PRIx64 " }",
222 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
223 ret = PyErr_NoMemory();
224 } else {
225 ret = PyString_FromString(s);
226 free(s);
227 }
228 return ret;
229}
230
231static PyTypeObject pyrf_lost_event__type = {
232 PyVarObject_HEAD_INIT(NULL, 0)
233 .tp_name = "perf.lost_event",
234 .tp_basicsize = sizeof(struct pyrf_event),
235 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
236 .tp_doc = pyrf_lost_event__doc,
237 .tp_members = pyrf_lost_event__members,
238 .tp_repr = (reprfunc)pyrf_lost_event__repr,
239};
240
241static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
242
243static PyMemberDef pyrf_read_event__members[] = {
244 sample_members
245 member_def(read_event, pid, T_UINT, "event pid"),
246 member_def(read_event, tid, T_UINT, "event tid"),
247 { .name = NULL, },
248};
249
250static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
251{
252 return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
253 pevent->event.read.pid,
254 pevent->event.read.tid);
255 /*
256 * FIXME: return the array of read values,
257 * making this method useful ;-)
258 */
259}
260
261static PyTypeObject pyrf_read_event__type = {
262 PyVarObject_HEAD_INIT(NULL, 0)
263 .tp_name = "perf.read_event",
264 .tp_basicsize = sizeof(struct pyrf_event),
265 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
266 .tp_doc = pyrf_read_event__doc,
267 .tp_members = pyrf_read_event__members,
268 .tp_repr = (reprfunc)pyrf_read_event__repr,
269};
270
271static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
272
273static PyMemberDef pyrf_sample_event__members[] = {
274 sample_members
275 member_def(perf_event_header, type, T_UINT, "event type"),
276 { .name = NULL, },
277};
278
279static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
280{
281 PyObject *ret;
282 char *s;
283
284 if (asprintf(&s, "{ type: sample }") < 0) {
285 ret = PyErr_NoMemory();
286 } else {
287 ret = PyString_FromString(s);
288 free(s);
289 }
290 return ret;
291}
292
293static bool is_tracepoint(struct pyrf_event *pevent)
294{
295 return pevent->evsel->attr.type == PERF_TYPE_TRACEPOINT;
296}
297
298static PyObject*
299tracepoint_field(struct pyrf_event *pe, struct format_field *field)
300{
301 struct pevent *pevent = field->event->pevent;
302 void *data = pe->sample.raw_data;
303 PyObject *ret = NULL;
304 unsigned long long val;
305 unsigned int offset, len;
306
307 if (field->flags & FIELD_IS_ARRAY) {
308 offset = field->offset;
309 len = field->size;
310 if (field->flags & FIELD_IS_DYNAMIC) {
311 val = pevent_read_number(pevent, data + offset, len);
312 offset = val;
313 len = offset >> 16;
314 offset &= 0xffff;
315 }
316 if (field->flags & FIELD_IS_STRING &&
317 is_printable_array(data + offset, len)) {
318 ret = PyString_FromString((char *)data + offset);
319 } else {
320 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
321 field->flags &= ~FIELD_IS_STRING;
322 }
323 } else {
324 val = pevent_read_number(pevent, data + field->offset,
325 field->size);
326 if (field->flags & FIELD_IS_POINTER)
327 ret = PyLong_FromUnsignedLong((unsigned long) val);
328 else if (field->flags & FIELD_IS_SIGNED)
329 ret = PyLong_FromLong((long) val);
330 else
331 ret = PyLong_FromUnsignedLong((unsigned long) val);
332 }
333
334 return ret;
335}
336
337static PyObject*
338get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
339{
340 const char *str = PyString_AsString(PyObject_Str(attr_name));
341 struct perf_evsel *evsel = pevent->evsel;
342 struct format_field *field;
343
344 if (!evsel->tp_format) {
345 struct event_format *tp_format;
346
347 tp_format = trace_event__tp_format_id(evsel->attr.config);
348 if (!tp_format)
349 return NULL;
350
351 evsel->tp_format = tp_format;
352 }
353
354 field = pevent_find_any_field(evsel->tp_format, str);
355 if (!field)
356 return NULL;
357
358 return tracepoint_field(pevent, field);
359}
360
361static PyObject*
362pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
363{
364 PyObject *obj = NULL;
365
366 if (is_tracepoint(pevent))
367 obj = get_tracepoint_field(pevent, attr_name);
368
369 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
370}
371
372static PyTypeObject pyrf_sample_event__type = {
373 PyVarObject_HEAD_INIT(NULL, 0)
374 .tp_name = "perf.sample_event",
375 .tp_basicsize = sizeof(struct pyrf_event),
376 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
377 .tp_doc = pyrf_sample_event__doc,
378 .tp_members = pyrf_sample_event__members,
379 .tp_repr = (reprfunc)pyrf_sample_event__repr,
380 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
381};
382
383static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
384
385static PyMemberDef pyrf_context_switch_event__members[] = {
386 sample_members
387 member_def(perf_event_header, type, T_UINT, "event type"),
388 member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"),
389 member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"),
390 { .name = NULL, },
391};
392
393static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
394{
395 PyObject *ret;
396 char *s;
397
398 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
399 pevent->event.context_switch.next_prev_pid,
400 pevent->event.context_switch.next_prev_tid,
401 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
402 ret = PyErr_NoMemory();
403 } else {
404 ret = PyString_FromString(s);
405 free(s);
406 }
407 return ret;
408}
409
410static PyTypeObject pyrf_context_switch_event__type = {
411 PyVarObject_HEAD_INIT(NULL, 0)
412 .tp_name = "perf.context_switch_event",
413 .tp_basicsize = sizeof(struct pyrf_event),
414 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
415 .tp_doc = pyrf_context_switch_event__doc,
416 .tp_members = pyrf_context_switch_event__members,
417 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
418};
419
420static int pyrf_event__setup_types(void)
421{
422 int err;
423 pyrf_mmap_event__type.tp_new =
424 pyrf_task_event__type.tp_new =
425 pyrf_comm_event__type.tp_new =
426 pyrf_lost_event__type.tp_new =
427 pyrf_read_event__type.tp_new =
428 pyrf_sample_event__type.tp_new =
429 pyrf_context_switch_event__type.tp_new =
430 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
431 err = PyType_Ready(&pyrf_mmap_event__type);
432 if (err < 0)
433 goto out;
434 err = PyType_Ready(&pyrf_lost_event__type);
435 if (err < 0)
436 goto out;
437 err = PyType_Ready(&pyrf_task_event__type);
438 if (err < 0)
439 goto out;
440 err = PyType_Ready(&pyrf_comm_event__type);
441 if (err < 0)
442 goto out;
443 err = PyType_Ready(&pyrf_throttle_event__type);
444 if (err < 0)
445 goto out;
446 err = PyType_Ready(&pyrf_read_event__type);
447 if (err < 0)
448 goto out;
449 err = PyType_Ready(&pyrf_sample_event__type);
450 if (err < 0)
451 goto out;
452 err = PyType_Ready(&pyrf_context_switch_event__type);
453 if (err < 0)
454 goto out;
455out:
456 return err;
457}
458
459static PyTypeObject *pyrf_event__type[] = {
460 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
461 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
462 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
463 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
464 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
465 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
466 [PERF_RECORD_FORK] = &pyrf_task_event__type,
467 [PERF_RECORD_READ] = &pyrf_read_event__type,
468 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
469 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
470 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
471};
472
473static PyObject *pyrf_event__new(union perf_event *event)
474{
475 struct pyrf_event *pevent;
476 PyTypeObject *ptype;
477
478 if ((event->header.type < PERF_RECORD_MMAP ||
479 event->header.type > PERF_RECORD_SAMPLE) &&
480 !(event->header.type == PERF_RECORD_SWITCH ||
481 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
482 return NULL;
483
484 ptype = pyrf_event__type[event->header.type];
485 pevent = PyObject_New(struct pyrf_event, ptype);
486 if (pevent != NULL)
487 memcpy(&pevent->event, event, event->header.size);
488 return (PyObject *)pevent;
489}
490
491struct pyrf_cpu_map {
492 PyObject_HEAD
493
494 struct cpu_map *cpus;
495};
496
497static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
498 PyObject *args, PyObject *kwargs)
499{
500 static char *kwlist[] = { "cpustr", NULL };
501 char *cpustr = NULL;
502
503 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
504 kwlist, &cpustr))
505 return -1;
506
507 pcpus->cpus = cpu_map__new(cpustr);
508 if (pcpus->cpus == NULL)
509 return -1;
510 return 0;
511}
512
513static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
514{
515 cpu_map__put(pcpus->cpus);
516 pcpus->ob_type->tp_free((PyObject*)pcpus);
517}
518
519static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
520{
521 struct pyrf_cpu_map *pcpus = (void *)obj;
522
523 return pcpus->cpus->nr;
524}
525
526static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
527{
528 struct pyrf_cpu_map *pcpus = (void *)obj;
529
530 if (i >= pcpus->cpus->nr)
531 return NULL;
532
533 return Py_BuildValue("i", pcpus->cpus->map[i]);
534}
535
536static PySequenceMethods pyrf_cpu_map__sequence_methods = {
537 .sq_length = pyrf_cpu_map__length,
538 .sq_item = pyrf_cpu_map__item,
539};
540
541static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
542
543static PyTypeObject pyrf_cpu_map__type = {
544 PyVarObject_HEAD_INIT(NULL, 0)
545 .tp_name = "perf.cpu_map",
546 .tp_basicsize = sizeof(struct pyrf_cpu_map),
547 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
548 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
549 .tp_doc = pyrf_cpu_map__doc,
550 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
551 .tp_init = (initproc)pyrf_cpu_map__init,
552};
553
554static int pyrf_cpu_map__setup_types(void)
555{
556 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
557 return PyType_Ready(&pyrf_cpu_map__type);
558}
559
560struct pyrf_thread_map {
561 PyObject_HEAD
562
563 struct thread_map *threads;
564};
565
566static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
567 PyObject *args, PyObject *kwargs)
568{
569 static char *kwlist[] = { "pid", "tid", "uid", NULL };
570 int pid = -1, tid = -1, uid = UINT_MAX;
571
572 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
573 kwlist, &pid, &tid, &uid))
574 return -1;
575
576 pthreads->threads = thread_map__new(pid, tid, uid);
577 if (pthreads->threads == NULL)
578 return -1;
579 return 0;
580}
581
582static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
583{
584 thread_map__put(pthreads->threads);
585 pthreads->ob_type->tp_free((PyObject*)pthreads);
586}
587
588static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
589{
590 struct pyrf_thread_map *pthreads = (void *)obj;
591
592 return pthreads->threads->nr;
593}
594
595static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
596{
597 struct pyrf_thread_map *pthreads = (void *)obj;
598
599 if (i >= pthreads->threads->nr)
600 return NULL;
601
602 return Py_BuildValue("i", pthreads->threads->map[i]);
603}
604
605static PySequenceMethods pyrf_thread_map__sequence_methods = {
606 .sq_length = pyrf_thread_map__length,
607 .sq_item = pyrf_thread_map__item,
608};
609
610static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
611
612static PyTypeObject pyrf_thread_map__type = {
613 PyVarObject_HEAD_INIT(NULL, 0)
614 .tp_name = "perf.thread_map",
615 .tp_basicsize = sizeof(struct pyrf_thread_map),
616 .tp_dealloc = (destructor)pyrf_thread_map__delete,
617 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
618 .tp_doc = pyrf_thread_map__doc,
619 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
620 .tp_init = (initproc)pyrf_thread_map__init,
621};
622
623static int pyrf_thread_map__setup_types(void)
624{
625 pyrf_thread_map__type.tp_new = PyType_GenericNew;
626 return PyType_Ready(&pyrf_thread_map__type);
627}
628
629struct pyrf_evsel {
630 PyObject_HEAD
631
632 struct perf_evsel evsel;
633};
634
635static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
636 PyObject *args, PyObject *kwargs)
637{
638 struct perf_event_attr attr = {
639 .type = PERF_TYPE_HARDWARE,
640 .config = PERF_COUNT_HW_CPU_CYCLES,
641 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
642 };
643 static char *kwlist[] = {
644 "type",
645 "config",
646 "sample_freq",
647 "sample_period",
648 "sample_type",
649 "read_format",
650 "disabled",
651 "inherit",
652 "pinned",
653 "exclusive",
654 "exclude_user",
655 "exclude_kernel",
656 "exclude_hv",
657 "exclude_idle",
658 "mmap",
659 "context_switch",
660 "comm",
661 "freq",
662 "inherit_stat",
663 "enable_on_exec",
664 "task",
665 "watermark",
666 "precise_ip",
667 "mmap_data",
668 "sample_id_all",
669 "wakeup_events",
670 "bp_type",
671 "bp_addr",
672 "bp_len",
673 NULL
674 };
675 u64 sample_period = 0;
676 u32 disabled = 0,
677 inherit = 0,
678 pinned = 0,
679 exclusive = 0,
680 exclude_user = 0,
681 exclude_kernel = 0,
682 exclude_hv = 0,
683 exclude_idle = 0,
684 mmap = 0,
685 context_switch = 0,
686 comm = 0,
687 freq = 1,
688 inherit_stat = 0,
689 enable_on_exec = 0,
690 task = 0,
691 watermark = 0,
692 precise_ip = 0,
693 mmap_data = 0,
694 sample_id_all = 1;
695 int idx = 0;
696
697 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
698 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
699 &attr.type, &attr.config, &attr.sample_freq,
700 &sample_period, &attr.sample_type,
701 &attr.read_format, &disabled, &inherit,
702 &pinned, &exclusive, &exclude_user,
703 &exclude_kernel, &exclude_hv, &exclude_idle,
704 &mmap, &context_switch, &comm, &freq, &inherit_stat,
705 &enable_on_exec, &task, &watermark,
706 &precise_ip, &mmap_data, &sample_id_all,
707 &attr.wakeup_events, &attr.bp_type,
708 &attr.bp_addr, &attr.bp_len, &idx))
709 return -1;
710
711 /* union... */
712 if (sample_period != 0) {
713 if (attr.sample_freq != 0)
714 return -1; /* FIXME: throw right exception */
715 attr.sample_period = sample_period;
716 }
717
718 /* Bitfields */
719 attr.disabled = disabled;
720 attr.inherit = inherit;
721 attr.pinned = pinned;
722 attr.exclusive = exclusive;
723 attr.exclude_user = exclude_user;
724 attr.exclude_kernel = exclude_kernel;
725 attr.exclude_hv = exclude_hv;
726 attr.exclude_idle = exclude_idle;
727 attr.mmap = mmap;
728 attr.context_switch = context_switch;
729 attr.comm = comm;
730 attr.freq = freq;
731 attr.inherit_stat = inherit_stat;
732 attr.enable_on_exec = enable_on_exec;
733 attr.task = task;
734 attr.watermark = watermark;
735 attr.precise_ip = precise_ip;
736 attr.mmap_data = mmap_data;
737 attr.sample_id_all = sample_id_all;
738 attr.size = sizeof(attr);
739
740 perf_evsel__init(&pevsel->evsel, &attr, idx);
741 return 0;
742}
743
744static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
745{
746 perf_evsel__exit(&pevsel->evsel);
747 pevsel->ob_type->tp_free((PyObject*)pevsel);
748}
749
750static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
751 PyObject *args, PyObject *kwargs)
752{
753 struct perf_evsel *evsel = &pevsel->evsel;
754 struct cpu_map *cpus = NULL;
755 struct thread_map *threads = NULL;
756 PyObject *pcpus = NULL, *pthreads = NULL;
757 int group = 0, inherit = 0;
758 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
759
760 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
761 &pcpus, &pthreads, &group, &inherit))
762 return NULL;
763
764 if (pthreads != NULL)
765 threads = ((struct pyrf_thread_map *)pthreads)->threads;
766
767 if (pcpus != NULL)
768 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
769
770 evsel->attr.inherit = inherit;
771 /*
772 * This will group just the fds for this single evsel, to group
773 * multiple events, use evlist.open().
774 */
775 if (perf_evsel__open(evsel, cpus, threads) < 0) {
776 PyErr_SetFromErrno(PyExc_OSError);
777 return NULL;
778 }
779
780 Py_INCREF(Py_None);
781 return Py_None;
782}
783
784static PyMethodDef pyrf_evsel__methods[] = {
785 {
786 .ml_name = "open",
787 .ml_meth = (PyCFunction)pyrf_evsel__open,
788 .ml_flags = METH_VARARGS | METH_KEYWORDS,
789 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
790 },
791 { .ml_name = NULL, }
792};
793
794static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
795
796static PyTypeObject pyrf_evsel__type = {
797 PyVarObject_HEAD_INIT(NULL, 0)
798 .tp_name = "perf.evsel",
799 .tp_basicsize = sizeof(struct pyrf_evsel),
800 .tp_dealloc = (destructor)pyrf_evsel__delete,
801 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
802 .tp_doc = pyrf_evsel__doc,
803 .tp_methods = pyrf_evsel__methods,
804 .tp_init = (initproc)pyrf_evsel__init,
805};
806
807static int pyrf_evsel__setup_types(void)
808{
809 pyrf_evsel__type.tp_new = PyType_GenericNew;
810 return PyType_Ready(&pyrf_evsel__type);
811}
812
813struct pyrf_evlist {
814 PyObject_HEAD
815
816 struct perf_evlist evlist;
817};
818
819static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
820 PyObject *args, PyObject *kwargs __maybe_unused)
821{
822 PyObject *pcpus = NULL, *pthreads = NULL;
823 struct cpu_map *cpus;
824 struct thread_map *threads;
825
826 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
827 return -1;
828
829 threads = ((struct pyrf_thread_map *)pthreads)->threads;
830 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
831 perf_evlist__init(&pevlist->evlist, cpus, threads);
832 return 0;
833}
834
835static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
836{
837 perf_evlist__exit(&pevlist->evlist);
838 pevlist->ob_type->tp_free((PyObject*)pevlist);
839}
840
841static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
842 PyObject *args, PyObject *kwargs)
843{
844 struct perf_evlist *evlist = &pevlist->evlist;
845 static char *kwlist[] = { "pages", "overwrite", NULL };
846 int pages = 128, overwrite = false;
847
848 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
849 &pages, &overwrite))
850 return NULL;
851
852 if (perf_evlist__mmap(evlist, pages, overwrite) < 0) {
853 PyErr_SetFromErrno(PyExc_OSError);
854 return NULL;
855 }
856
857 Py_INCREF(Py_None);
858 return Py_None;
859}
860
861static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
862 PyObject *args, PyObject *kwargs)
863{
864 struct perf_evlist *evlist = &pevlist->evlist;
865 static char *kwlist[] = { "timeout", NULL };
866 int timeout = -1, n;
867
868 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
869 return NULL;
870
871 n = perf_evlist__poll(evlist, timeout);
872 if (n < 0) {
873 PyErr_SetFromErrno(PyExc_OSError);
874 return NULL;
875 }
876
877 return Py_BuildValue("i", n);
878}
879
880static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
881 PyObject *args __maybe_unused,
882 PyObject *kwargs __maybe_unused)
883{
884 struct perf_evlist *evlist = &pevlist->evlist;
885 PyObject *list = PyList_New(0);
886 int i;
887
888 for (i = 0; i < evlist->pollfd.nr; ++i) {
889 PyObject *file;
890 FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r");
891
892 if (fp == NULL)
893 goto free_list;
894
895 file = PyFile_FromFile(fp, "perf", "r", NULL);
896 if (file == NULL)
897 goto free_list;
898
899 if (PyList_Append(list, file) != 0) {
900 Py_DECREF(file);
901 goto free_list;
902 }
903
904 Py_DECREF(file);
905 }
906
907 return list;
908free_list:
909 return PyErr_NoMemory();
910}
911
912
913static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
914 PyObject *args,
915 PyObject *kwargs __maybe_unused)
916{
917 struct perf_evlist *evlist = &pevlist->evlist;
918 PyObject *pevsel;
919 struct perf_evsel *evsel;
920
921 if (!PyArg_ParseTuple(args, "O", &pevsel))
922 return NULL;
923
924 Py_INCREF(pevsel);
925 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
926 evsel->idx = evlist->nr_entries;
927 perf_evlist__add(evlist, evsel);
928
929 return Py_BuildValue("i", evlist->nr_entries);
930}
931
932static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
933 PyObject *args, PyObject *kwargs)
934{
935 struct perf_evlist *evlist = &pevlist->evlist;
936 union perf_event *event;
937 int sample_id_all = 1, cpu;
938 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
939 int err;
940
941 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
942 &cpu, &sample_id_all))
943 return NULL;
944
945 event = perf_evlist__mmap_read(evlist, cpu);
946 if (event != NULL) {
947 PyObject *pyevent = pyrf_event__new(event);
948 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
949 struct perf_evsel *evsel;
950
951 if (pyevent == NULL)
952 return PyErr_NoMemory();
953
954 evsel = perf_evlist__event2evsel(evlist, event);
955 if (!evsel)
956 return Py_None;
957
958 pevent->evsel = evsel;
959
960 err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
961
962 /* Consume the even only after we parsed it out. */
963 perf_evlist__mmap_consume(evlist, cpu);
964
965 if (err)
966 return PyErr_Format(PyExc_OSError,
967 "perf: can't parse sample, err=%d", err);
968 return pyevent;
969 }
970
971 Py_INCREF(Py_None);
972 return Py_None;
973}
974
975static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
976 PyObject *args, PyObject *kwargs)
977{
978 struct perf_evlist *evlist = &pevlist->evlist;
979 int group = 0;
980 static char *kwlist[] = { "group", NULL };
981
982 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
983 return NULL;
984
985 if (group)
986 perf_evlist__set_leader(evlist);
987
988 if (perf_evlist__open(evlist) < 0) {
989 PyErr_SetFromErrno(PyExc_OSError);
990 return NULL;
991 }
992
993 Py_INCREF(Py_None);
994 return Py_None;
995}
996
997static PyMethodDef pyrf_evlist__methods[] = {
998 {
999 .ml_name = "mmap",
1000 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1001 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1002 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1003 },
1004 {
1005 .ml_name = "open",
1006 .ml_meth = (PyCFunction)pyrf_evlist__open,
1007 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1008 .ml_doc = PyDoc_STR("open the file descriptors.")
1009 },
1010 {
1011 .ml_name = "poll",
1012 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1013 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1014 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1015 },
1016 {
1017 .ml_name = "get_pollfd",
1018 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1019 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1020 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1021 },
1022 {
1023 .ml_name = "add",
1024 .ml_meth = (PyCFunction)pyrf_evlist__add,
1025 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1026 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1027 },
1028 {
1029 .ml_name = "read_on_cpu",
1030 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1031 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1032 .ml_doc = PyDoc_STR("reads an event.")
1033 },
1034 { .ml_name = NULL, }
1035};
1036
1037static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1038{
1039 struct pyrf_evlist *pevlist = (void *)obj;
1040
1041 return pevlist->evlist.nr_entries;
1042}
1043
1044static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1045{
1046 struct pyrf_evlist *pevlist = (void *)obj;
1047 struct perf_evsel *pos;
1048
1049 if (i >= pevlist->evlist.nr_entries)
1050 return NULL;
1051
1052 evlist__for_each_entry(&pevlist->evlist, pos) {
1053 if (i-- == 0)
1054 break;
1055 }
1056
1057 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1058}
1059
1060static PySequenceMethods pyrf_evlist__sequence_methods = {
1061 .sq_length = pyrf_evlist__length,
1062 .sq_item = pyrf_evlist__item,
1063};
1064
1065static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1066
1067static PyTypeObject pyrf_evlist__type = {
1068 PyVarObject_HEAD_INIT(NULL, 0)
1069 .tp_name = "perf.evlist",
1070 .tp_basicsize = sizeof(struct pyrf_evlist),
1071 .tp_dealloc = (destructor)pyrf_evlist__delete,
1072 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1073 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1074 .tp_doc = pyrf_evlist__doc,
1075 .tp_methods = pyrf_evlist__methods,
1076 .tp_init = (initproc)pyrf_evlist__init,
1077};
1078
1079static int pyrf_evlist__setup_types(void)
1080{
1081 pyrf_evlist__type.tp_new = PyType_GenericNew;
1082 return PyType_Ready(&pyrf_evlist__type);
1083}
1084
1085#define PERF_CONST(name) { #name, PERF_##name }
1086
1087static struct {
1088 const char *name;
1089 int value;
1090} perf__constants[] = {
1091 PERF_CONST(TYPE_HARDWARE),
1092 PERF_CONST(TYPE_SOFTWARE),
1093 PERF_CONST(TYPE_TRACEPOINT),
1094 PERF_CONST(TYPE_HW_CACHE),
1095 PERF_CONST(TYPE_RAW),
1096 PERF_CONST(TYPE_BREAKPOINT),
1097
1098 PERF_CONST(COUNT_HW_CPU_CYCLES),
1099 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1100 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1101 PERF_CONST(COUNT_HW_CACHE_MISSES),
1102 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1103 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1104 PERF_CONST(COUNT_HW_BUS_CYCLES),
1105 PERF_CONST(COUNT_HW_CACHE_L1D),
1106 PERF_CONST(COUNT_HW_CACHE_L1I),
1107 PERF_CONST(COUNT_HW_CACHE_LL),
1108 PERF_CONST(COUNT_HW_CACHE_DTLB),
1109 PERF_CONST(COUNT_HW_CACHE_ITLB),
1110 PERF_CONST(COUNT_HW_CACHE_BPU),
1111 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1112 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1113 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1114 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1115 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1116
1117 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1118 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1119
1120 PERF_CONST(COUNT_SW_CPU_CLOCK),
1121 PERF_CONST(COUNT_SW_TASK_CLOCK),
1122 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1123 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1124 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1125 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1126 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1127 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1128 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1129 PERF_CONST(COUNT_SW_DUMMY),
1130
1131 PERF_CONST(SAMPLE_IP),
1132 PERF_CONST(SAMPLE_TID),
1133 PERF_CONST(SAMPLE_TIME),
1134 PERF_CONST(SAMPLE_ADDR),
1135 PERF_CONST(SAMPLE_READ),
1136 PERF_CONST(SAMPLE_CALLCHAIN),
1137 PERF_CONST(SAMPLE_ID),
1138 PERF_CONST(SAMPLE_CPU),
1139 PERF_CONST(SAMPLE_PERIOD),
1140 PERF_CONST(SAMPLE_STREAM_ID),
1141 PERF_CONST(SAMPLE_RAW),
1142
1143 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1144 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1145 PERF_CONST(FORMAT_ID),
1146 PERF_CONST(FORMAT_GROUP),
1147
1148 PERF_CONST(RECORD_MMAP),
1149 PERF_CONST(RECORD_LOST),
1150 PERF_CONST(RECORD_COMM),
1151 PERF_CONST(RECORD_EXIT),
1152 PERF_CONST(RECORD_THROTTLE),
1153 PERF_CONST(RECORD_UNTHROTTLE),
1154 PERF_CONST(RECORD_FORK),
1155 PERF_CONST(RECORD_READ),
1156 PERF_CONST(RECORD_SAMPLE),
1157 PERF_CONST(RECORD_MMAP2),
1158 PERF_CONST(RECORD_AUX),
1159 PERF_CONST(RECORD_ITRACE_START),
1160 PERF_CONST(RECORD_LOST_SAMPLES),
1161 PERF_CONST(RECORD_SWITCH),
1162 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1163
1164 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1165 { .name = NULL, },
1166};
1167
1168static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1169 PyObject *args, PyObject *kwargs)
1170{
1171 struct event_format *tp_format;
1172 static char *kwlist[] = { "sys", "name", NULL };
1173 char *sys = NULL;
1174 char *name = NULL;
1175
1176 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1177 &sys, &name))
1178 return NULL;
1179
1180 tp_format = trace_event__tp_format(sys, name);
1181 if (IS_ERR(tp_format))
1182 return PyInt_FromLong(-1);
1183
1184 return PyInt_FromLong(tp_format->id);
1185}
1186
1187static PyMethodDef perf__methods[] = {
1188 {
1189 .ml_name = "tracepoint",
1190 .ml_meth = (PyCFunction) pyrf__tracepoint,
1191 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1192 .ml_doc = PyDoc_STR("Get tracepoint config.")
1193 },
1194 { .ml_name = NULL, }
1195};
1196
1197PyMODINIT_FUNC initperf(void)
1198{
1199 PyObject *obj;
1200 int i;
1201 PyObject *dict, *module = Py_InitModule("perf", perf__methods);
1202
1203 if (module == NULL ||
1204 pyrf_event__setup_types() < 0 ||
1205 pyrf_evlist__setup_types() < 0 ||
1206 pyrf_evsel__setup_types() < 0 ||
1207 pyrf_thread_map__setup_types() < 0 ||
1208 pyrf_cpu_map__setup_types() < 0)
1209 return;
1210
1211 /* The page_size is placed in util object. */
1212 page_size = sysconf(_SC_PAGE_SIZE);
1213
1214 Py_INCREF(&pyrf_evlist__type);
1215 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1216
1217 Py_INCREF(&pyrf_evsel__type);
1218 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1219
1220 Py_INCREF(&pyrf_mmap_event__type);
1221 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1222
1223 Py_INCREF(&pyrf_lost_event__type);
1224 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1225
1226 Py_INCREF(&pyrf_comm_event__type);
1227 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1228
1229 Py_INCREF(&pyrf_task_event__type);
1230 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1231
1232 Py_INCREF(&pyrf_throttle_event__type);
1233 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1234
1235 Py_INCREF(&pyrf_task_event__type);
1236 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1237
1238 Py_INCREF(&pyrf_read_event__type);
1239 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1240
1241 Py_INCREF(&pyrf_sample_event__type);
1242 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1243
1244 Py_INCREF(&pyrf_context_switch_event__type);
1245 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1246
1247 Py_INCREF(&pyrf_thread_map__type);
1248 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1249
1250 Py_INCREF(&pyrf_cpu_map__type);
1251 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1252
1253 dict = PyModule_GetDict(module);
1254 if (dict == NULL)
1255 goto error;
1256
1257 for (i = 0; perf__constants[i].name != NULL; i++) {
1258 obj = PyInt_FromLong(perf__constants[i].value);
1259 if (obj == NULL)
1260 goto error;
1261 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1262 Py_DECREF(obj);
1263 }
1264
1265error:
1266 if (PyErr_Occurred())
1267 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1268}
1269
1270/*
1271 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1272 * binding.
1273 */
1274void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1275 int fd, int group_fd, unsigned long flags)
1276{
1277}