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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// 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}