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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/bpf-filter.h"
23#include "util/env.h"
24#include "util/pmu.h"
25#include "util/pmus.h"
26#include <internal/lib.h>
27#include "util.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/*
54 * Avoid bringing in event parsing.
55 */
56int parse_event(struct evlist *evlist __maybe_unused, const char *str __maybe_unused)
57{
58 return 0;
59}
60
61/*
62 * Provide these two so that we don't have to link against callchain.c and
63 * start dragging hist.c, etc.
64 */
65struct callchain_param callchain_param;
66
67int parse_callchain_record(const char *arg __maybe_unused,
68 struct callchain_param *param __maybe_unused)
69{
70 return 0;
71}
72
73/*
74 * Add these not to drag util/env.c
75 */
76struct perf_env perf_env;
77
78const char *perf_env__cpuid(struct perf_env *env __maybe_unused)
79{
80 return NULL;
81}
82
83// This one is a bit easier, wouldn't drag too much, but leave it as a stub we need it here
84const char *perf_env__arch(struct perf_env *env __maybe_unused)
85{
86 return NULL;
87}
88
89/*
90 * These ones are needed not to drag the PMU bandwagon, jevents generated
91 * pmu_sys_event_tables, etc and evsel__find_pmu() is used so far just for
92 * doing per PMU perf_event_attr.exclude_guest handling, not really needed, so
93 * far, for the perf python binding known usecases, revisit if this become
94 * necessary.
95 */
96struct perf_pmu *evsel__find_pmu(const struct evsel *evsel __maybe_unused)
97{
98 return NULL;
99}
100
101int perf_pmu__scan_file(const struct perf_pmu *pmu, const char *name, const char *fmt, ...)
102{
103 return EOF;
104}
105
106int perf_pmus__num_core_pmus(void)
107{
108 return 1;
109}
110
111bool evsel__is_aux_event(const struct evsel *evsel __maybe_unused)
112{
113 return false;
114}
115
116bool perf_pmus__supports_extended_type(void)
117{
118 return false;
119}
120
121/*
122 * Add this one here not to drag util/metricgroup.c
123 */
124int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
125 struct rblist *new_metric_events,
126 struct rblist *old_metric_events)
127{
128 return 0;
129}
130
131/*
132 * Add this one here not to drag util/trace-event-info.c
133 */
134char *tracepoint_id_to_name(u64 config)
135{
136 return NULL;
137}
138
139/*
140 * XXX: All these evsel destructors need some better mechanism, like a linked
141 * list of destructors registered when the relevant code indeed is used instead
142 * of having more and more calls in perf_evsel__delete(). -- acme
143 *
144 * For now, add some more:
145 *
146 * Not to drag the BPF bandwagon...
147 */
148void bpf_counter__destroy(struct evsel *evsel);
149int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd);
150int bpf_counter__disable(struct evsel *evsel);
151
152void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
153{
154}
155
156int bpf_counter__install_pe(struct evsel *evsel __maybe_unused, int cpu __maybe_unused, int fd __maybe_unused)
157{
158 return 0;
159}
160
161int bpf_counter__disable(struct evsel *evsel __maybe_unused)
162{
163 return 0;
164}
165
166// not to drag util/bpf-filter.c
167#ifdef HAVE_BPF_SKEL
168int perf_bpf_filter__prepare(struct evsel *evsel __maybe_unused)
169{
170 return 0;
171}
172
173int perf_bpf_filter__destroy(struct evsel *evsel __maybe_unused)
174{
175 return 0;
176}
177#endif
178
179/*
180 * Support debug printing even though util/debug.c is not linked. That means
181 * implementing 'verbose' and 'eprintf'.
182 */
183int verbose;
184int debug_peo_args;
185
186int eprintf(int level, int var, const char *fmt, ...);
187
188int eprintf(int level, int var, const char *fmt, ...)
189{
190 va_list args;
191 int ret = 0;
192
193 if (var >= level) {
194 va_start(args, fmt);
195 ret = vfprintf(stderr, fmt, args);
196 va_end(args);
197 }
198
199 return ret;
200}
201
202/* Define PyVarObject_HEAD_INIT for python 2.5 */
203#ifndef PyVarObject_HEAD_INIT
204# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
205#endif
206
207#if PY_MAJOR_VERSION < 3
208PyMODINIT_FUNC initperf(void);
209#else
210PyMODINIT_FUNC PyInit_perf(void);
211#endif
212
213#define member_def(type, member, ptype, help) \
214 { #member, ptype, \
215 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
216 0, help }
217
218#define sample_member_def(name, member, ptype, help) \
219 { #name, ptype, \
220 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
221 0, help }
222
223struct pyrf_event {
224 PyObject_HEAD
225 struct evsel *evsel;
226 struct perf_sample sample;
227 union perf_event event;
228};
229
230#define sample_members \
231 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
232 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
233 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
234 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
235 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
236 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
237 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
238 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
239 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
240
241static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
242
243static PyMemberDef pyrf_mmap_event__members[] = {
244 sample_members
245 member_def(perf_event_header, type, T_UINT, "event type"),
246 member_def(perf_event_header, misc, T_UINT, "event misc"),
247 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
248 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
249 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
250 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
251 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
252 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
253 { .name = NULL, },
254};
255
256static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
257{
258 PyObject *ret;
259 char *s;
260
261 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
262 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
263 "filename: %s }",
264 pevent->event.mmap.pid, pevent->event.mmap.tid,
265 pevent->event.mmap.start, pevent->event.mmap.len,
266 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
267 ret = PyErr_NoMemory();
268 } else {
269 ret = _PyUnicode_FromString(s);
270 free(s);
271 }
272 return ret;
273}
274
275static PyTypeObject pyrf_mmap_event__type = {
276 PyVarObject_HEAD_INIT(NULL, 0)
277 .tp_name = "perf.mmap_event",
278 .tp_basicsize = sizeof(struct pyrf_event),
279 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
280 .tp_doc = pyrf_mmap_event__doc,
281 .tp_members = pyrf_mmap_event__members,
282 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
283};
284
285static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
286
287static PyMemberDef pyrf_task_event__members[] = {
288 sample_members
289 member_def(perf_event_header, type, T_UINT, "event type"),
290 member_def(perf_record_fork, pid, T_UINT, "event pid"),
291 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
292 member_def(perf_record_fork, tid, T_UINT, "event tid"),
293 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
294 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
295 { .name = NULL, },
296};
297
298static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
299{
300 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
301 "ptid: %u, time: %" PRI_lu64 "}",
302 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
303 pevent->event.fork.pid,
304 pevent->event.fork.ppid,
305 pevent->event.fork.tid,
306 pevent->event.fork.ptid,
307 pevent->event.fork.time);
308}
309
310static PyTypeObject pyrf_task_event__type = {
311 PyVarObject_HEAD_INIT(NULL, 0)
312 .tp_name = "perf.task_event",
313 .tp_basicsize = sizeof(struct pyrf_event),
314 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
315 .tp_doc = pyrf_task_event__doc,
316 .tp_members = pyrf_task_event__members,
317 .tp_repr = (reprfunc)pyrf_task_event__repr,
318};
319
320static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
321
322static PyMemberDef pyrf_comm_event__members[] = {
323 sample_members
324 member_def(perf_event_header, type, T_UINT, "event type"),
325 member_def(perf_record_comm, pid, T_UINT, "event pid"),
326 member_def(perf_record_comm, tid, T_UINT, "event tid"),
327 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
328 { .name = NULL, },
329};
330
331static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
332{
333 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
334 pevent->event.comm.pid,
335 pevent->event.comm.tid,
336 pevent->event.comm.comm);
337}
338
339static PyTypeObject pyrf_comm_event__type = {
340 PyVarObject_HEAD_INIT(NULL, 0)
341 .tp_name = "perf.comm_event",
342 .tp_basicsize = sizeof(struct pyrf_event),
343 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
344 .tp_doc = pyrf_comm_event__doc,
345 .tp_members = pyrf_comm_event__members,
346 .tp_repr = (reprfunc)pyrf_comm_event__repr,
347};
348
349static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
350
351static PyMemberDef pyrf_throttle_event__members[] = {
352 sample_members
353 member_def(perf_event_header, type, T_UINT, "event type"),
354 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
355 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
356 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
357 { .name = NULL, },
358};
359
360static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
361{
362 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
363
364 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
365 ", stream_id: %" PRI_lu64 " }",
366 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
367 te->time, te->id, te->stream_id);
368}
369
370static PyTypeObject pyrf_throttle_event__type = {
371 PyVarObject_HEAD_INIT(NULL, 0)
372 .tp_name = "perf.throttle_event",
373 .tp_basicsize = sizeof(struct pyrf_event),
374 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
375 .tp_doc = pyrf_throttle_event__doc,
376 .tp_members = pyrf_throttle_event__members,
377 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
378};
379
380static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
381
382static PyMemberDef pyrf_lost_event__members[] = {
383 sample_members
384 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
385 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
386 { .name = NULL, },
387};
388
389static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
390{
391 PyObject *ret;
392 char *s;
393
394 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
395 "lost: %#" PRI_lx64 " }",
396 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
397 ret = PyErr_NoMemory();
398 } else {
399 ret = _PyUnicode_FromString(s);
400 free(s);
401 }
402 return ret;
403}
404
405static PyTypeObject pyrf_lost_event__type = {
406 PyVarObject_HEAD_INIT(NULL, 0)
407 .tp_name = "perf.lost_event",
408 .tp_basicsize = sizeof(struct pyrf_event),
409 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
410 .tp_doc = pyrf_lost_event__doc,
411 .tp_members = pyrf_lost_event__members,
412 .tp_repr = (reprfunc)pyrf_lost_event__repr,
413};
414
415static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
416
417static PyMemberDef pyrf_read_event__members[] = {
418 sample_members
419 member_def(perf_record_read, pid, T_UINT, "event pid"),
420 member_def(perf_record_read, tid, T_UINT, "event tid"),
421 { .name = NULL, },
422};
423
424static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
425{
426 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
427 pevent->event.read.pid,
428 pevent->event.read.tid);
429 /*
430 * FIXME: return the array of read values,
431 * making this method useful ;-)
432 */
433}
434
435static PyTypeObject pyrf_read_event__type = {
436 PyVarObject_HEAD_INIT(NULL, 0)
437 .tp_name = "perf.read_event",
438 .tp_basicsize = sizeof(struct pyrf_event),
439 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
440 .tp_doc = pyrf_read_event__doc,
441 .tp_members = pyrf_read_event__members,
442 .tp_repr = (reprfunc)pyrf_read_event__repr,
443};
444
445static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
446
447static PyMemberDef pyrf_sample_event__members[] = {
448 sample_members
449 member_def(perf_event_header, type, T_UINT, "event type"),
450 { .name = NULL, },
451};
452
453static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
454{
455 PyObject *ret;
456 char *s;
457
458 if (asprintf(&s, "{ type: sample }") < 0) {
459 ret = PyErr_NoMemory();
460 } else {
461 ret = _PyUnicode_FromString(s);
462 free(s);
463 }
464 return ret;
465}
466
467#ifdef HAVE_LIBTRACEEVENT
468static bool is_tracepoint(struct pyrf_event *pevent)
469{
470 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
471}
472
473static PyObject*
474tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
475{
476 struct tep_handle *pevent = field->event->tep;
477 void *data = pe->sample.raw_data;
478 PyObject *ret = NULL;
479 unsigned long long val;
480 unsigned int offset, len;
481
482 if (field->flags & TEP_FIELD_IS_ARRAY) {
483 offset = field->offset;
484 len = field->size;
485 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
486 val = tep_read_number(pevent, data + offset, len);
487 offset = val;
488 len = offset >> 16;
489 offset &= 0xffff;
490 if (tep_field_is_relative(field->flags))
491 offset += field->offset + field->size;
492 }
493 if (field->flags & TEP_FIELD_IS_STRING &&
494 is_printable_array(data + offset, len)) {
495 ret = _PyUnicode_FromString((char *)data + offset);
496 } else {
497 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
498 field->flags &= ~TEP_FIELD_IS_STRING;
499 }
500 } else {
501 val = tep_read_number(pevent, data + field->offset,
502 field->size);
503 if (field->flags & TEP_FIELD_IS_POINTER)
504 ret = PyLong_FromUnsignedLong((unsigned long) val);
505 else if (field->flags & TEP_FIELD_IS_SIGNED)
506 ret = PyLong_FromLong((long) val);
507 else
508 ret = PyLong_FromUnsignedLong((unsigned long) val);
509 }
510
511 return ret;
512}
513
514static PyObject*
515get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
516{
517 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
518 struct evsel *evsel = pevent->evsel;
519 struct tep_format_field *field;
520
521 if (!evsel->tp_format) {
522 struct tep_event *tp_format;
523
524 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
525 if (IS_ERR_OR_NULL(tp_format))
526 return NULL;
527
528 evsel->tp_format = tp_format;
529 }
530
531 field = tep_find_any_field(evsel->tp_format, str);
532 if (!field)
533 return NULL;
534
535 return tracepoint_field(pevent, field);
536}
537#endif /* HAVE_LIBTRACEEVENT */
538
539static PyObject*
540pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
541{
542 PyObject *obj = NULL;
543
544#ifdef HAVE_LIBTRACEEVENT
545 if (is_tracepoint(pevent))
546 obj = get_tracepoint_field(pevent, attr_name);
547#endif
548
549 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
550}
551
552static PyTypeObject pyrf_sample_event__type = {
553 PyVarObject_HEAD_INIT(NULL, 0)
554 .tp_name = "perf.sample_event",
555 .tp_basicsize = sizeof(struct pyrf_event),
556 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
557 .tp_doc = pyrf_sample_event__doc,
558 .tp_members = pyrf_sample_event__members,
559 .tp_repr = (reprfunc)pyrf_sample_event__repr,
560 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
561};
562
563static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
564
565static PyMemberDef pyrf_context_switch_event__members[] = {
566 sample_members
567 member_def(perf_event_header, type, T_UINT, "event type"),
568 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
569 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
570 { .name = NULL, },
571};
572
573static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
574{
575 PyObject *ret;
576 char *s;
577
578 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
579 pevent->event.context_switch.next_prev_pid,
580 pevent->event.context_switch.next_prev_tid,
581 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
582 ret = PyErr_NoMemory();
583 } else {
584 ret = _PyUnicode_FromString(s);
585 free(s);
586 }
587 return ret;
588}
589
590static PyTypeObject pyrf_context_switch_event__type = {
591 PyVarObject_HEAD_INIT(NULL, 0)
592 .tp_name = "perf.context_switch_event",
593 .tp_basicsize = sizeof(struct pyrf_event),
594 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
595 .tp_doc = pyrf_context_switch_event__doc,
596 .tp_members = pyrf_context_switch_event__members,
597 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
598};
599
600static int pyrf_event__setup_types(void)
601{
602 int err;
603 pyrf_mmap_event__type.tp_new =
604 pyrf_task_event__type.tp_new =
605 pyrf_comm_event__type.tp_new =
606 pyrf_lost_event__type.tp_new =
607 pyrf_read_event__type.tp_new =
608 pyrf_sample_event__type.tp_new =
609 pyrf_context_switch_event__type.tp_new =
610 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
611 err = PyType_Ready(&pyrf_mmap_event__type);
612 if (err < 0)
613 goto out;
614 err = PyType_Ready(&pyrf_lost_event__type);
615 if (err < 0)
616 goto out;
617 err = PyType_Ready(&pyrf_task_event__type);
618 if (err < 0)
619 goto out;
620 err = PyType_Ready(&pyrf_comm_event__type);
621 if (err < 0)
622 goto out;
623 err = PyType_Ready(&pyrf_throttle_event__type);
624 if (err < 0)
625 goto out;
626 err = PyType_Ready(&pyrf_read_event__type);
627 if (err < 0)
628 goto out;
629 err = PyType_Ready(&pyrf_sample_event__type);
630 if (err < 0)
631 goto out;
632 err = PyType_Ready(&pyrf_context_switch_event__type);
633 if (err < 0)
634 goto out;
635out:
636 return err;
637}
638
639static PyTypeObject *pyrf_event__type[] = {
640 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
641 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
642 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
643 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
644 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
645 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
646 [PERF_RECORD_FORK] = &pyrf_task_event__type,
647 [PERF_RECORD_READ] = &pyrf_read_event__type,
648 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
649 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
650 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
651};
652
653static PyObject *pyrf_event__new(union perf_event *event)
654{
655 struct pyrf_event *pevent;
656 PyTypeObject *ptype;
657
658 if ((event->header.type < PERF_RECORD_MMAP ||
659 event->header.type > PERF_RECORD_SAMPLE) &&
660 !(event->header.type == PERF_RECORD_SWITCH ||
661 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
662 return NULL;
663
664 ptype = pyrf_event__type[event->header.type];
665 pevent = PyObject_New(struct pyrf_event, ptype);
666 if (pevent != NULL)
667 memcpy(&pevent->event, event, event->header.size);
668 return (PyObject *)pevent;
669}
670
671struct pyrf_cpu_map {
672 PyObject_HEAD
673
674 struct perf_cpu_map *cpus;
675};
676
677static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
678 PyObject *args, PyObject *kwargs)
679{
680 static char *kwlist[] = { "cpustr", NULL };
681 char *cpustr = NULL;
682
683 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
684 kwlist, &cpustr))
685 return -1;
686
687 pcpus->cpus = perf_cpu_map__new(cpustr);
688 if (pcpus->cpus == NULL)
689 return -1;
690 return 0;
691}
692
693static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
694{
695 perf_cpu_map__put(pcpus->cpus);
696 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
697}
698
699static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
700{
701 struct pyrf_cpu_map *pcpus = (void *)obj;
702
703 return perf_cpu_map__nr(pcpus->cpus);
704}
705
706static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
707{
708 struct pyrf_cpu_map *pcpus = (void *)obj;
709
710 if (i >= perf_cpu_map__nr(pcpus->cpus))
711 return NULL;
712
713 return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
714}
715
716static PySequenceMethods pyrf_cpu_map__sequence_methods = {
717 .sq_length = pyrf_cpu_map__length,
718 .sq_item = pyrf_cpu_map__item,
719};
720
721static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
722
723static PyTypeObject pyrf_cpu_map__type = {
724 PyVarObject_HEAD_INIT(NULL, 0)
725 .tp_name = "perf.cpu_map",
726 .tp_basicsize = sizeof(struct pyrf_cpu_map),
727 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
728 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
729 .tp_doc = pyrf_cpu_map__doc,
730 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
731 .tp_init = (initproc)pyrf_cpu_map__init,
732};
733
734static int pyrf_cpu_map__setup_types(void)
735{
736 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
737 return PyType_Ready(&pyrf_cpu_map__type);
738}
739
740struct pyrf_thread_map {
741 PyObject_HEAD
742
743 struct perf_thread_map *threads;
744};
745
746static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
747 PyObject *args, PyObject *kwargs)
748{
749 static char *kwlist[] = { "pid", "tid", "uid", NULL };
750 int pid = -1, tid = -1, uid = UINT_MAX;
751
752 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
753 kwlist, &pid, &tid, &uid))
754 return -1;
755
756 pthreads->threads = thread_map__new(pid, tid, uid);
757 if (pthreads->threads == NULL)
758 return -1;
759 return 0;
760}
761
762static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
763{
764 perf_thread_map__put(pthreads->threads);
765 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
766}
767
768static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
769{
770 struct pyrf_thread_map *pthreads = (void *)obj;
771
772 return perf_thread_map__nr(pthreads->threads);
773}
774
775static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
776{
777 struct pyrf_thread_map *pthreads = (void *)obj;
778
779 if (i >= perf_thread_map__nr(pthreads->threads))
780 return NULL;
781
782 return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
783}
784
785static PySequenceMethods pyrf_thread_map__sequence_methods = {
786 .sq_length = pyrf_thread_map__length,
787 .sq_item = pyrf_thread_map__item,
788};
789
790static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
791
792static PyTypeObject pyrf_thread_map__type = {
793 PyVarObject_HEAD_INIT(NULL, 0)
794 .tp_name = "perf.thread_map",
795 .tp_basicsize = sizeof(struct pyrf_thread_map),
796 .tp_dealloc = (destructor)pyrf_thread_map__delete,
797 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
798 .tp_doc = pyrf_thread_map__doc,
799 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
800 .tp_init = (initproc)pyrf_thread_map__init,
801};
802
803static int pyrf_thread_map__setup_types(void)
804{
805 pyrf_thread_map__type.tp_new = PyType_GenericNew;
806 return PyType_Ready(&pyrf_thread_map__type);
807}
808
809struct pyrf_evsel {
810 PyObject_HEAD
811
812 struct evsel evsel;
813};
814
815static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
816 PyObject *args, PyObject *kwargs)
817{
818 struct perf_event_attr attr = {
819 .type = PERF_TYPE_HARDWARE,
820 .config = PERF_COUNT_HW_CPU_CYCLES,
821 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
822 };
823 static char *kwlist[] = {
824 "type",
825 "config",
826 "sample_freq",
827 "sample_period",
828 "sample_type",
829 "read_format",
830 "disabled",
831 "inherit",
832 "pinned",
833 "exclusive",
834 "exclude_user",
835 "exclude_kernel",
836 "exclude_hv",
837 "exclude_idle",
838 "mmap",
839 "context_switch",
840 "comm",
841 "freq",
842 "inherit_stat",
843 "enable_on_exec",
844 "task",
845 "watermark",
846 "precise_ip",
847 "mmap_data",
848 "sample_id_all",
849 "wakeup_events",
850 "bp_type",
851 "bp_addr",
852 "bp_len",
853 NULL
854 };
855 u64 sample_period = 0;
856 u32 disabled = 0,
857 inherit = 0,
858 pinned = 0,
859 exclusive = 0,
860 exclude_user = 0,
861 exclude_kernel = 0,
862 exclude_hv = 0,
863 exclude_idle = 0,
864 mmap = 0,
865 context_switch = 0,
866 comm = 0,
867 freq = 1,
868 inherit_stat = 0,
869 enable_on_exec = 0,
870 task = 0,
871 watermark = 0,
872 precise_ip = 0,
873 mmap_data = 0,
874 sample_id_all = 1;
875 int idx = 0;
876
877 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
878 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
879 &attr.type, &attr.config, &attr.sample_freq,
880 &sample_period, &attr.sample_type,
881 &attr.read_format, &disabled, &inherit,
882 &pinned, &exclusive, &exclude_user,
883 &exclude_kernel, &exclude_hv, &exclude_idle,
884 &mmap, &context_switch, &comm, &freq, &inherit_stat,
885 &enable_on_exec, &task, &watermark,
886 &precise_ip, &mmap_data, &sample_id_all,
887 &attr.wakeup_events, &attr.bp_type,
888 &attr.bp_addr, &attr.bp_len, &idx))
889 return -1;
890
891 /* union... */
892 if (sample_period != 0) {
893 if (attr.sample_freq != 0)
894 return -1; /* FIXME: throw right exception */
895 attr.sample_period = sample_period;
896 }
897
898 /* Bitfields */
899 attr.disabled = disabled;
900 attr.inherit = inherit;
901 attr.pinned = pinned;
902 attr.exclusive = exclusive;
903 attr.exclude_user = exclude_user;
904 attr.exclude_kernel = exclude_kernel;
905 attr.exclude_hv = exclude_hv;
906 attr.exclude_idle = exclude_idle;
907 attr.mmap = mmap;
908 attr.context_switch = context_switch;
909 attr.comm = comm;
910 attr.freq = freq;
911 attr.inherit_stat = inherit_stat;
912 attr.enable_on_exec = enable_on_exec;
913 attr.task = task;
914 attr.watermark = watermark;
915 attr.precise_ip = precise_ip;
916 attr.mmap_data = mmap_data;
917 attr.sample_id_all = sample_id_all;
918 attr.size = sizeof(attr);
919
920 evsel__init(&pevsel->evsel, &attr, idx);
921 return 0;
922}
923
924static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
925{
926 evsel__exit(&pevsel->evsel);
927 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
928}
929
930static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
931 PyObject *args, PyObject *kwargs)
932{
933 struct evsel *evsel = &pevsel->evsel;
934 struct perf_cpu_map *cpus = NULL;
935 struct perf_thread_map *threads = NULL;
936 PyObject *pcpus = NULL, *pthreads = NULL;
937 int group = 0, inherit = 0;
938 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
939
940 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
941 &pcpus, &pthreads, &group, &inherit))
942 return NULL;
943
944 if (pthreads != NULL)
945 threads = ((struct pyrf_thread_map *)pthreads)->threads;
946
947 if (pcpus != NULL)
948 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
949
950 evsel->core.attr.inherit = inherit;
951 /*
952 * This will group just the fds for this single evsel, to group
953 * multiple events, use evlist.open().
954 */
955 if (evsel__open(evsel, cpus, threads) < 0) {
956 PyErr_SetFromErrno(PyExc_OSError);
957 return NULL;
958 }
959
960 Py_INCREF(Py_None);
961 return Py_None;
962}
963
964static PyMethodDef pyrf_evsel__methods[] = {
965 {
966 .ml_name = "open",
967 .ml_meth = (PyCFunction)pyrf_evsel__open,
968 .ml_flags = METH_VARARGS | METH_KEYWORDS,
969 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
970 },
971 { .ml_name = NULL, }
972};
973
974static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
975
976static PyTypeObject pyrf_evsel__type = {
977 PyVarObject_HEAD_INIT(NULL, 0)
978 .tp_name = "perf.evsel",
979 .tp_basicsize = sizeof(struct pyrf_evsel),
980 .tp_dealloc = (destructor)pyrf_evsel__delete,
981 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
982 .tp_doc = pyrf_evsel__doc,
983 .tp_methods = pyrf_evsel__methods,
984 .tp_init = (initproc)pyrf_evsel__init,
985};
986
987static int pyrf_evsel__setup_types(void)
988{
989 pyrf_evsel__type.tp_new = PyType_GenericNew;
990 return PyType_Ready(&pyrf_evsel__type);
991}
992
993struct pyrf_evlist {
994 PyObject_HEAD
995
996 struct evlist evlist;
997};
998
999static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
1000 PyObject *args, PyObject *kwargs __maybe_unused)
1001{
1002 PyObject *pcpus = NULL, *pthreads = NULL;
1003 struct perf_cpu_map *cpus;
1004 struct perf_thread_map *threads;
1005
1006 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
1007 return -1;
1008
1009 threads = ((struct pyrf_thread_map *)pthreads)->threads;
1010 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
1011 evlist__init(&pevlist->evlist, cpus, threads);
1012 return 0;
1013}
1014
1015static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
1016{
1017 evlist__exit(&pevlist->evlist);
1018 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
1019}
1020
1021static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
1022 PyObject *args, PyObject *kwargs)
1023{
1024 struct evlist *evlist = &pevlist->evlist;
1025 static char *kwlist[] = { "pages", "overwrite", NULL };
1026 int pages = 128, overwrite = false;
1027
1028 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
1029 &pages, &overwrite))
1030 return NULL;
1031
1032 if (evlist__mmap(evlist, pages) < 0) {
1033 PyErr_SetFromErrno(PyExc_OSError);
1034 return NULL;
1035 }
1036
1037 Py_INCREF(Py_None);
1038 return Py_None;
1039}
1040
1041static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
1042 PyObject *args, PyObject *kwargs)
1043{
1044 struct evlist *evlist = &pevlist->evlist;
1045 static char *kwlist[] = { "timeout", NULL };
1046 int timeout = -1, n;
1047
1048 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
1049 return NULL;
1050
1051 n = evlist__poll(evlist, timeout);
1052 if (n < 0) {
1053 PyErr_SetFromErrno(PyExc_OSError);
1054 return NULL;
1055 }
1056
1057 return Py_BuildValue("i", n);
1058}
1059
1060static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
1061 PyObject *args __maybe_unused,
1062 PyObject *kwargs __maybe_unused)
1063{
1064 struct evlist *evlist = &pevlist->evlist;
1065 PyObject *list = PyList_New(0);
1066 int i;
1067
1068 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
1069 PyObject *file;
1070#if PY_MAJOR_VERSION < 3
1071 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
1072
1073 if (fp == NULL)
1074 goto free_list;
1075
1076 file = PyFile_FromFile(fp, "perf", "r", NULL);
1077#else
1078 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
1079 NULL, NULL, NULL, 0);
1080#endif
1081 if (file == NULL)
1082 goto free_list;
1083
1084 if (PyList_Append(list, file) != 0) {
1085 Py_DECREF(file);
1086 goto free_list;
1087 }
1088
1089 Py_DECREF(file);
1090 }
1091
1092 return list;
1093free_list:
1094 return PyErr_NoMemory();
1095}
1096
1097
1098static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
1099 PyObject *args,
1100 PyObject *kwargs __maybe_unused)
1101{
1102 struct evlist *evlist = &pevlist->evlist;
1103 PyObject *pevsel;
1104 struct evsel *evsel;
1105
1106 if (!PyArg_ParseTuple(args, "O", &pevsel))
1107 return NULL;
1108
1109 Py_INCREF(pevsel);
1110 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
1111 evsel->core.idx = evlist->core.nr_entries;
1112 evlist__add(evlist, evsel);
1113
1114 return Py_BuildValue("i", evlist->core.nr_entries);
1115}
1116
1117static struct mmap *get_md(struct evlist *evlist, int cpu)
1118{
1119 int i;
1120
1121 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1122 struct mmap *md = &evlist->mmap[i];
1123
1124 if (md->core.cpu.cpu == cpu)
1125 return md;
1126 }
1127
1128 return NULL;
1129}
1130
1131static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1132 PyObject *args, PyObject *kwargs)
1133{
1134 struct evlist *evlist = &pevlist->evlist;
1135 union perf_event *event;
1136 int sample_id_all = 1, cpu;
1137 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1138 struct mmap *md;
1139 int err;
1140
1141 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1142 &cpu, &sample_id_all))
1143 return NULL;
1144
1145 md = get_md(evlist, cpu);
1146 if (!md)
1147 return NULL;
1148
1149 if (perf_mmap__read_init(&md->core) < 0)
1150 goto end;
1151
1152 event = perf_mmap__read_event(&md->core);
1153 if (event != NULL) {
1154 PyObject *pyevent = pyrf_event__new(event);
1155 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1156 struct evsel *evsel;
1157
1158 if (pyevent == NULL)
1159 return PyErr_NoMemory();
1160
1161 evsel = evlist__event2evsel(evlist, event);
1162 if (!evsel) {
1163 Py_INCREF(Py_None);
1164 return Py_None;
1165 }
1166
1167 pevent->evsel = evsel;
1168
1169 err = evsel__parse_sample(evsel, event, &pevent->sample);
1170
1171 /* Consume the even only after we parsed it out. */
1172 perf_mmap__consume(&md->core);
1173
1174 if (err)
1175 return PyErr_Format(PyExc_OSError,
1176 "perf: can't parse sample, err=%d", err);
1177 return pyevent;
1178 }
1179end:
1180 Py_INCREF(Py_None);
1181 return Py_None;
1182}
1183
1184static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1185 PyObject *args, PyObject *kwargs)
1186{
1187 struct evlist *evlist = &pevlist->evlist;
1188
1189 if (evlist__open(evlist) < 0) {
1190 PyErr_SetFromErrno(PyExc_OSError);
1191 return NULL;
1192 }
1193
1194 Py_INCREF(Py_None);
1195 return Py_None;
1196}
1197
1198static PyMethodDef pyrf_evlist__methods[] = {
1199 {
1200 .ml_name = "mmap",
1201 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1202 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1203 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1204 },
1205 {
1206 .ml_name = "open",
1207 .ml_meth = (PyCFunction)pyrf_evlist__open,
1208 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1209 .ml_doc = PyDoc_STR("open the file descriptors.")
1210 },
1211 {
1212 .ml_name = "poll",
1213 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1214 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1215 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1216 },
1217 {
1218 .ml_name = "get_pollfd",
1219 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1220 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1221 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1222 },
1223 {
1224 .ml_name = "add",
1225 .ml_meth = (PyCFunction)pyrf_evlist__add,
1226 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1227 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1228 },
1229 {
1230 .ml_name = "read_on_cpu",
1231 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1232 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1233 .ml_doc = PyDoc_STR("reads an event.")
1234 },
1235 { .ml_name = NULL, }
1236};
1237
1238static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1239{
1240 struct pyrf_evlist *pevlist = (void *)obj;
1241
1242 return pevlist->evlist.core.nr_entries;
1243}
1244
1245static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1246{
1247 struct pyrf_evlist *pevlist = (void *)obj;
1248 struct evsel *pos;
1249
1250 if (i >= pevlist->evlist.core.nr_entries)
1251 return NULL;
1252
1253 evlist__for_each_entry(&pevlist->evlist, pos) {
1254 if (i-- == 0)
1255 break;
1256 }
1257
1258 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1259}
1260
1261static PySequenceMethods pyrf_evlist__sequence_methods = {
1262 .sq_length = pyrf_evlist__length,
1263 .sq_item = pyrf_evlist__item,
1264};
1265
1266static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1267
1268static PyTypeObject pyrf_evlist__type = {
1269 PyVarObject_HEAD_INIT(NULL, 0)
1270 .tp_name = "perf.evlist",
1271 .tp_basicsize = sizeof(struct pyrf_evlist),
1272 .tp_dealloc = (destructor)pyrf_evlist__delete,
1273 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1274 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1275 .tp_doc = pyrf_evlist__doc,
1276 .tp_methods = pyrf_evlist__methods,
1277 .tp_init = (initproc)pyrf_evlist__init,
1278};
1279
1280static int pyrf_evlist__setup_types(void)
1281{
1282 pyrf_evlist__type.tp_new = PyType_GenericNew;
1283 return PyType_Ready(&pyrf_evlist__type);
1284}
1285
1286#define PERF_CONST(name) { #name, PERF_##name }
1287
1288static struct {
1289 const char *name;
1290 int value;
1291} perf__constants[] = {
1292 PERF_CONST(TYPE_HARDWARE),
1293 PERF_CONST(TYPE_SOFTWARE),
1294 PERF_CONST(TYPE_TRACEPOINT),
1295 PERF_CONST(TYPE_HW_CACHE),
1296 PERF_CONST(TYPE_RAW),
1297 PERF_CONST(TYPE_BREAKPOINT),
1298
1299 PERF_CONST(COUNT_HW_CPU_CYCLES),
1300 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1301 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1302 PERF_CONST(COUNT_HW_CACHE_MISSES),
1303 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1304 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1305 PERF_CONST(COUNT_HW_BUS_CYCLES),
1306 PERF_CONST(COUNT_HW_CACHE_L1D),
1307 PERF_CONST(COUNT_HW_CACHE_L1I),
1308 PERF_CONST(COUNT_HW_CACHE_LL),
1309 PERF_CONST(COUNT_HW_CACHE_DTLB),
1310 PERF_CONST(COUNT_HW_CACHE_ITLB),
1311 PERF_CONST(COUNT_HW_CACHE_BPU),
1312 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1313 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1314 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1315 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1316 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1317
1318 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1319 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1320
1321 PERF_CONST(COUNT_SW_CPU_CLOCK),
1322 PERF_CONST(COUNT_SW_TASK_CLOCK),
1323 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1324 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1325 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1326 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1327 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1328 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1329 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1330 PERF_CONST(COUNT_SW_DUMMY),
1331
1332 PERF_CONST(SAMPLE_IP),
1333 PERF_CONST(SAMPLE_TID),
1334 PERF_CONST(SAMPLE_TIME),
1335 PERF_CONST(SAMPLE_ADDR),
1336 PERF_CONST(SAMPLE_READ),
1337 PERF_CONST(SAMPLE_CALLCHAIN),
1338 PERF_CONST(SAMPLE_ID),
1339 PERF_CONST(SAMPLE_CPU),
1340 PERF_CONST(SAMPLE_PERIOD),
1341 PERF_CONST(SAMPLE_STREAM_ID),
1342 PERF_CONST(SAMPLE_RAW),
1343
1344 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1345 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1346 PERF_CONST(FORMAT_ID),
1347 PERF_CONST(FORMAT_GROUP),
1348
1349 PERF_CONST(RECORD_MMAP),
1350 PERF_CONST(RECORD_LOST),
1351 PERF_CONST(RECORD_COMM),
1352 PERF_CONST(RECORD_EXIT),
1353 PERF_CONST(RECORD_THROTTLE),
1354 PERF_CONST(RECORD_UNTHROTTLE),
1355 PERF_CONST(RECORD_FORK),
1356 PERF_CONST(RECORD_READ),
1357 PERF_CONST(RECORD_SAMPLE),
1358 PERF_CONST(RECORD_MMAP2),
1359 PERF_CONST(RECORD_AUX),
1360 PERF_CONST(RECORD_ITRACE_START),
1361 PERF_CONST(RECORD_LOST_SAMPLES),
1362 PERF_CONST(RECORD_SWITCH),
1363 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1364
1365 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1366 { .name = NULL, },
1367};
1368
1369static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1370 PyObject *args, PyObject *kwargs)
1371{
1372#ifndef HAVE_LIBTRACEEVENT
1373 return NULL;
1374#else
1375 struct tep_event *tp_format;
1376 static char *kwlist[] = { "sys", "name", NULL };
1377 char *sys = NULL;
1378 char *name = NULL;
1379
1380 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1381 &sys, &name))
1382 return NULL;
1383
1384 tp_format = trace_event__tp_format(sys, name);
1385 if (IS_ERR(tp_format))
1386 return _PyLong_FromLong(-1);
1387
1388 return _PyLong_FromLong(tp_format->id);
1389#endif // HAVE_LIBTRACEEVENT
1390}
1391
1392static PyMethodDef perf__methods[] = {
1393 {
1394 .ml_name = "tracepoint",
1395 .ml_meth = (PyCFunction) pyrf__tracepoint,
1396 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1397 .ml_doc = PyDoc_STR("Get tracepoint config.")
1398 },
1399 { .ml_name = NULL, }
1400};
1401
1402#if PY_MAJOR_VERSION < 3
1403PyMODINIT_FUNC initperf(void)
1404#else
1405PyMODINIT_FUNC PyInit_perf(void)
1406#endif
1407{
1408 PyObject *obj;
1409 int i;
1410 PyObject *dict;
1411#if PY_MAJOR_VERSION < 3
1412 PyObject *module = Py_InitModule("perf", perf__methods);
1413#else
1414 static struct PyModuleDef moduledef = {
1415 PyModuleDef_HEAD_INIT,
1416 "perf", /* m_name */
1417 "", /* m_doc */
1418 -1, /* m_size */
1419 perf__methods, /* m_methods */
1420 NULL, /* m_reload */
1421 NULL, /* m_traverse */
1422 NULL, /* m_clear */
1423 NULL, /* m_free */
1424 };
1425 PyObject *module = PyModule_Create(&moduledef);
1426#endif
1427
1428 if (module == NULL ||
1429 pyrf_event__setup_types() < 0 ||
1430 pyrf_evlist__setup_types() < 0 ||
1431 pyrf_evsel__setup_types() < 0 ||
1432 pyrf_thread_map__setup_types() < 0 ||
1433 pyrf_cpu_map__setup_types() < 0)
1434#if PY_MAJOR_VERSION < 3
1435 return;
1436#else
1437 return module;
1438#endif
1439
1440 /* The page_size is placed in util object. */
1441 page_size = sysconf(_SC_PAGE_SIZE);
1442
1443 Py_INCREF(&pyrf_evlist__type);
1444 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1445
1446 Py_INCREF(&pyrf_evsel__type);
1447 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1448
1449 Py_INCREF(&pyrf_mmap_event__type);
1450 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1451
1452 Py_INCREF(&pyrf_lost_event__type);
1453 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1454
1455 Py_INCREF(&pyrf_comm_event__type);
1456 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1457
1458 Py_INCREF(&pyrf_task_event__type);
1459 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1460
1461 Py_INCREF(&pyrf_throttle_event__type);
1462 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1463
1464 Py_INCREF(&pyrf_task_event__type);
1465 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1466
1467 Py_INCREF(&pyrf_read_event__type);
1468 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1469
1470 Py_INCREF(&pyrf_sample_event__type);
1471 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1472
1473 Py_INCREF(&pyrf_context_switch_event__type);
1474 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1475
1476 Py_INCREF(&pyrf_thread_map__type);
1477 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1478
1479 Py_INCREF(&pyrf_cpu_map__type);
1480 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1481
1482 dict = PyModule_GetDict(module);
1483 if (dict == NULL)
1484 goto error;
1485
1486 for (i = 0; perf__constants[i].name != NULL; i++) {
1487 obj = _PyLong_FromLong(perf__constants[i].value);
1488 if (obj == NULL)
1489 goto error;
1490 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1491 Py_DECREF(obj);
1492 }
1493
1494error:
1495 if (PyErr_Occurred())
1496 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1497#if PY_MAJOR_VERSION >= 3
1498 return module;
1499#endif
1500}
1501
1502/*
1503 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1504 * binding.
1505 */
1506void test_attr__open(struct perf_event_attr *attr, pid_t pid, struct perf_cpu cpu,
1507 int fd, int group_fd, unsigned long flags)
1508{
1509}
1510
1511void evlist__free_stats(struct evlist *evlist)
1512{
1513}
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}