Loading...
1// SPDX-License-Identifier: GPL-2.0
2#include <Python.h>
3#include <structmember.h>
4#include <inttypes.h>
5#include <poll.h>
6#include <linux/err.h>
7#include <perf/cpumap.h>
8#include <traceevent/event-parse.h>
9#include "evlist.h"
10#include "callchain.h"
11#include "evsel.h"
12#include "event.h"
13#include "print_binary.h"
14#include "thread_map.h"
15#include "trace-event.h"
16#include "mmap.h"
17#include "util/env.h"
18#include <internal/lib.h>
19#include "../perf-sys.h"
20
21#if PY_MAJOR_VERSION < 3
22#define _PyUnicode_FromString(arg) \
23 PyString_FromString(arg)
24#define _PyUnicode_AsString(arg) \
25 PyString_AsString(arg)
26#define _PyUnicode_FromFormat(...) \
27 PyString_FromFormat(__VA_ARGS__)
28#define _PyLong_FromLong(arg) \
29 PyInt_FromLong(arg)
30
31#else
32
33#define _PyUnicode_FromString(arg) \
34 PyUnicode_FromString(arg)
35#define _PyUnicode_FromFormat(...) \
36 PyUnicode_FromFormat(__VA_ARGS__)
37#define _PyLong_FromLong(arg) \
38 PyLong_FromLong(arg)
39#endif
40
41#ifndef Py_TYPE
42#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
43#endif
44
45/*
46 * Provide these two so that we don't have to link against callchain.c and
47 * start dragging hist.c, etc.
48 */
49struct callchain_param callchain_param;
50
51int parse_callchain_record(const char *arg __maybe_unused,
52 struct callchain_param *param __maybe_unused)
53{
54 return 0;
55}
56
57/*
58 * Add this one here not to drag util/env.c
59 */
60struct perf_env perf_env;
61
62/*
63 * Support debug printing even though util/debug.c is not linked. That means
64 * implementing 'verbose' and 'eprintf'.
65 */
66int verbose;
67
68int eprintf(int level, int var, const char *fmt, ...);
69
70int eprintf(int level, int var, const char *fmt, ...)
71{
72 va_list args;
73 int ret = 0;
74
75 if (var >= level) {
76 va_start(args, fmt);
77 ret = vfprintf(stderr, fmt, args);
78 va_end(args);
79 }
80
81 return ret;
82}
83
84/* Define PyVarObject_HEAD_INIT for python 2.5 */
85#ifndef PyVarObject_HEAD_INIT
86# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
87#endif
88
89#if PY_MAJOR_VERSION < 3
90PyMODINIT_FUNC initperf(void);
91#else
92PyMODINIT_FUNC PyInit_perf(void);
93#endif
94
95#define member_def(type, member, ptype, help) \
96 { #member, ptype, \
97 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
98 0, help }
99
100#define sample_member_def(name, member, ptype, help) \
101 { #name, ptype, \
102 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
103 0, help }
104
105struct pyrf_event {
106 PyObject_HEAD
107 struct evsel *evsel;
108 struct perf_sample sample;
109 union perf_event event;
110};
111
112#define sample_members \
113 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
114 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
115 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
116 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
117 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
118 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
119 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
120 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
121 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
122
123static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
124
125static PyMemberDef pyrf_mmap_event__members[] = {
126 sample_members
127 member_def(perf_event_header, type, T_UINT, "event type"),
128 member_def(perf_event_header, misc, T_UINT, "event misc"),
129 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
130 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
131 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
132 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
133 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
134 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
135 { .name = NULL, },
136};
137
138static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
139{
140 PyObject *ret;
141 char *s;
142
143 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
144 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
145 "filename: %s }",
146 pevent->event.mmap.pid, pevent->event.mmap.tid,
147 pevent->event.mmap.start, pevent->event.mmap.len,
148 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
149 ret = PyErr_NoMemory();
150 } else {
151 ret = _PyUnicode_FromString(s);
152 free(s);
153 }
154 return ret;
155}
156
157static PyTypeObject pyrf_mmap_event__type = {
158 PyVarObject_HEAD_INIT(NULL, 0)
159 .tp_name = "perf.mmap_event",
160 .tp_basicsize = sizeof(struct pyrf_event),
161 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
162 .tp_doc = pyrf_mmap_event__doc,
163 .tp_members = pyrf_mmap_event__members,
164 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
165};
166
167static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
168
169static PyMemberDef pyrf_task_event__members[] = {
170 sample_members
171 member_def(perf_event_header, type, T_UINT, "event type"),
172 member_def(perf_record_fork, pid, T_UINT, "event pid"),
173 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
174 member_def(perf_record_fork, tid, T_UINT, "event tid"),
175 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
176 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
177 { .name = NULL, },
178};
179
180static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
181{
182 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
183 "ptid: %u, time: %" PRI_lu64 "}",
184 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
185 pevent->event.fork.pid,
186 pevent->event.fork.ppid,
187 pevent->event.fork.tid,
188 pevent->event.fork.ptid,
189 pevent->event.fork.time);
190}
191
192static PyTypeObject pyrf_task_event__type = {
193 PyVarObject_HEAD_INIT(NULL, 0)
194 .tp_name = "perf.task_event",
195 .tp_basicsize = sizeof(struct pyrf_event),
196 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
197 .tp_doc = pyrf_task_event__doc,
198 .tp_members = pyrf_task_event__members,
199 .tp_repr = (reprfunc)pyrf_task_event__repr,
200};
201
202static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
203
204static PyMemberDef pyrf_comm_event__members[] = {
205 sample_members
206 member_def(perf_event_header, type, T_UINT, "event type"),
207 member_def(perf_record_comm, pid, T_UINT, "event pid"),
208 member_def(perf_record_comm, tid, T_UINT, "event tid"),
209 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
210 { .name = NULL, },
211};
212
213static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
214{
215 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
216 pevent->event.comm.pid,
217 pevent->event.comm.tid,
218 pevent->event.comm.comm);
219}
220
221static PyTypeObject pyrf_comm_event__type = {
222 PyVarObject_HEAD_INIT(NULL, 0)
223 .tp_name = "perf.comm_event",
224 .tp_basicsize = sizeof(struct pyrf_event),
225 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
226 .tp_doc = pyrf_comm_event__doc,
227 .tp_members = pyrf_comm_event__members,
228 .tp_repr = (reprfunc)pyrf_comm_event__repr,
229};
230
231static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
232
233static PyMemberDef pyrf_throttle_event__members[] = {
234 sample_members
235 member_def(perf_event_header, type, T_UINT, "event type"),
236 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
237 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
238 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
239 { .name = NULL, },
240};
241
242static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
243{
244 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
245
246 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
247 ", stream_id: %" PRI_lu64 " }",
248 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
249 te->time, te->id, te->stream_id);
250}
251
252static PyTypeObject pyrf_throttle_event__type = {
253 PyVarObject_HEAD_INIT(NULL, 0)
254 .tp_name = "perf.throttle_event",
255 .tp_basicsize = sizeof(struct pyrf_event),
256 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
257 .tp_doc = pyrf_throttle_event__doc,
258 .tp_members = pyrf_throttle_event__members,
259 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
260};
261
262static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
263
264static PyMemberDef pyrf_lost_event__members[] = {
265 sample_members
266 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
267 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
268 { .name = NULL, },
269};
270
271static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
272{
273 PyObject *ret;
274 char *s;
275
276 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
277 "lost: %#" PRI_lx64 " }",
278 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
279 ret = PyErr_NoMemory();
280 } else {
281 ret = _PyUnicode_FromString(s);
282 free(s);
283 }
284 return ret;
285}
286
287static PyTypeObject pyrf_lost_event__type = {
288 PyVarObject_HEAD_INIT(NULL, 0)
289 .tp_name = "perf.lost_event",
290 .tp_basicsize = sizeof(struct pyrf_event),
291 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
292 .tp_doc = pyrf_lost_event__doc,
293 .tp_members = pyrf_lost_event__members,
294 .tp_repr = (reprfunc)pyrf_lost_event__repr,
295};
296
297static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
298
299static PyMemberDef pyrf_read_event__members[] = {
300 sample_members
301 member_def(perf_record_read, pid, T_UINT, "event pid"),
302 member_def(perf_record_read, tid, T_UINT, "event tid"),
303 { .name = NULL, },
304};
305
306static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
307{
308 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
309 pevent->event.read.pid,
310 pevent->event.read.tid);
311 /*
312 * FIXME: return the array of read values,
313 * making this method useful ;-)
314 */
315}
316
317static PyTypeObject pyrf_read_event__type = {
318 PyVarObject_HEAD_INIT(NULL, 0)
319 .tp_name = "perf.read_event",
320 .tp_basicsize = sizeof(struct pyrf_event),
321 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
322 .tp_doc = pyrf_read_event__doc,
323 .tp_members = pyrf_read_event__members,
324 .tp_repr = (reprfunc)pyrf_read_event__repr,
325};
326
327static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
328
329static PyMemberDef pyrf_sample_event__members[] = {
330 sample_members
331 member_def(perf_event_header, type, T_UINT, "event type"),
332 { .name = NULL, },
333};
334
335static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
336{
337 PyObject *ret;
338 char *s;
339
340 if (asprintf(&s, "{ type: sample }") < 0) {
341 ret = PyErr_NoMemory();
342 } else {
343 ret = _PyUnicode_FromString(s);
344 free(s);
345 }
346 return ret;
347}
348
349static bool is_tracepoint(struct pyrf_event *pevent)
350{
351 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
352}
353
354static PyObject*
355tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
356{
357 struct tep_handle *pevent = field->event->tep;
358 void *data = pe->sample.raw_data;
359 PyObject *ret = NULL;
360 unsigned long long val;
361 unsigned int offset, len;
362
363 if (field->flags & TEP_FIELD_IS_ARRAY) {
364 offset = field->offset;
365 len = field->size;
366 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
367 val = tep_read_number(pevent, data + offset, len);
368 offset = val;
369 len = offset >> 16;
370 offset &= 0xffff;
371 }
372 if (field->flags & TEP_FIELD_IS_STRING &&
373 is_printable_array(data + offset, len)) {
374 ret = _PyUnicode_FromString((char *)data + offset);
375 } else {
376 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
377 field->flags &= ~TEP_FIELD_IS_STRING;
378 }
379 } else {
380 val = tep_read_number(pevent, data + field->offset,
381 field->size);
382 if (field->flags & TEP_FIELD_IS_POINTER)
383 ret = PyLong_FromUnsignedLong((unsigned long) val);
384 else if (field->flags & TEP_FIELD_IS_SIGNED)
385 ret = PyLong_FromLong((long) val);
386 else
387 ret = PyLong_FromUnsignedLong((unsigned long) val);
388 }
389
390 return ret;
391}
392
393static PyObject*
394get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
395{
396 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
397 struct evsel *evsel = pevent->evsel;
398 struct tep_format_field *field;
399
400 if (!evsel->tp_format) {
401 struct tep_event *tp_format;
402
403 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
404 if (!tp_format)
405 return NULL;
406
407 evsel->tp_format = tp_format;
408 }
409
410 field = tep_find_any_field(evsel->tp_format, str);
411 if (!field)
412 return NULL;
413
414 return tracepoint_field(pevent, field);
415}
416
417static PyObject*
418pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
419{
420 PyObject *obj = NULL;
421
422 if (is_tracepoint(pevent))
423 obj = get_tracepoint_field(pevent, attr_name);
424
425 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
426}
427
428static PyTypeObject pyrf_sample_event__type = {
429 PyVarObject_HEAD_INIT(NULL, 0)
430 .tp_name = "perf.sample_event",
431 .tp_basicsize = sizeof(struct pyrf_event),
432 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
433 .tp_doc = pyrf_sample_event__doc,
434 .tp_members = pyrf_sample_event__members,
435 .tp_repr = (reprfunc)pyrf_sample_event__repr,
436 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
437};
438
439static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
440
441static PyMemberDef pyrf_context_switch_event__members[] = {
442 sample_members
443 member_def(perf_event_header, type, T_UINT, "event type"),
444 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
445 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
446 { .name = NULL, },
447};
448
449static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
450{
451 PyObject *ret;
452 char *s;
453
454 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
455 pevent->event.context_switch.next_prev_pid,
456 pevent->event.context_switch.next_prev_tid,
457 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
458 ret = PyErr_NoMemory();
459 } else {
460 ret = _PyUnicode_FromString(s);
461 free(s);
462 }
463 return ret;
464}
465
466static PyTypeObject pyrf_context_switch_event__type = {
467 PyVarObject_HEAD_INIT(NULL, 0)
468 .tp_name = "perf.context_switch_event",
469 .tp_basicsize = sizeof(struct pyrf_event),
470 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
471 .tp_doc = pyrf_context_switch_event__doc,
472 .tp_members = pyrf_context_switch_event__members,
473 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
474};
475
476static int pyrf_event__setup_types(void)
477{
478 int err;
479 pyrf_mmap_event__type.tp_new =
480 pyrf_task_event__type.tp_new =
481 pyrf_comm_event__type.tp_new =
482 pyrf_lost_event__type.tp_new =
483 pyrf_read_event__type.tp_new =
484 pyrf_sample_event__type.tp_new =
485 pyrf_context_switch_event__type.tp_new =
486 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
487 err = PyType_Ready(&pyrf_mmap_event__type);
488 if (err < 0)
489 goto out;
490 err = PyType_Ready(&pyrf_lost_event__type);
491 if (err < 0)
492 goto out;
493 err = PyType_Ready(&pyrf_task_event__type);
494 if (err < 0)
495 goto out;
496 err = PyType_Ready(&pyrf_comm_event__type);
497 if (err < 0)
498 goto out;
499 err = PyType_Ready(&pyrf_throttle_event__type);
500 if (err < 0)
501 goto out;
502 err = PyType_Ready(&pyrf_read_event__type);
503 if (err < 0)
504 goto out;
505 err = PyType_Ready(&pyrf_sample_event__type);
506 if (err < 0)
507 goto out;
508 err = PyType_Ready(&pyrf_context_switch_event__type);
509 if (err < 0)
510 goto out;
511out:
512 return err;
513}
514
515static PyTypeObject *pyrf_event__type[] = {
516 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
517 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
518 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
519 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
520 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
521 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
522 [PERF_RECORD_FORK] = &pyrf_task_event__type,
523 [PERF_RECORD_READ] = &pyrf_read_event__type,
524 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
525 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
526 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
527};
528
529static PyObject *pyrf_event__new(union perf_event *event)
530{
531 struct pyrf_event *pevent;
532 PyTypeObject *ptype;
533
534 if ((event->header.type < PERF_RECORD_MMAP ||
535 event->header.type > PERF_RECORD_SAMPLE) &&
536 !(event->header.type == PERF_RECORD_SWITCH ||
537 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
538 return NULL;
539
540 ptype = pyrf_event__type[event->header.type];
541 pevent = PyObject_New(struct pyrf_event, ptype);
542 if (pevent != NULL)
543 memcpy(&pevent->event, event, event->header.size);
544 return (PyObject *)pevent;
545}
546
547struct pyrf_cpu_map {
548 PyObject_HEAD
549
550 struct perf_cpu_map *cpus;
551};
552
553static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
554 PyObject *args, PyObject *kwargs)
555{
556 static char *kwlist[] = { "cpustr", NULL };
557 char *cpustr = NULL;
558
559 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
560 kwlist, &cpustr))
561 return -1;
562
563 pcpus->cpus = perf_cpu_map__new(cpustr);
564 if (pcpus->cpus == NULL)
565 return -1;
566 return 0;
567}
568
569static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
570{
571 perf_cpu_map__put(pcpus->cpus);
572 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
573}
574
575static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
576{
577 struct pyrf_cpu_map *pcpus = (void *)obj;
578
579 return pcpus->cpus->nr;
580}
581
582static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
583{
584 struct pyrf_cpu_map *pcpus = (void *)obj;
585
586 if (i >= pcpus->cpus->nr)
587 return NULL;
588
589 return Py_BuildValue("i", pcpus->cpus->map[i]);
590}
591
592static PySequenceMethods pyrf_cpu_map__sequence_methods = {
593 .sq_length = pyrf_cpu_map__length,
594 .sq_item = pyrf_cpu_map__item,
595};
596
597static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
598
599static PyTypeObject pyrf_cpu_map__type = {
600 PyVarObject_HEAD_INIT(NULL, 0)
601 .tp_name = "perf.cpu_map",
602 .tp_basicsize = sizeof(struct pyrf_cpu_map),
603 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
604 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
605 .tp_doc = pyrf_cpu_map__doc,
606 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
607 .tp_init = (initproc)pyrf_cpu_map__init,
608};
609
610static int pyrf_cpu_map__setup_types(void)
611{
612 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
613 return PyType_Ready(&pyrf_cpu_map__type);
614}
615
616struct pyrf_thread_map {
617 PyObject_HEAD
618
619 struct perf_thread_map *threads;
620};
621
622static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
623 PyObject *args, PyObject *kwargs)
624{
625 static char *kwlist[] = { "pid", "tid", "uid", NULL };
626 int pid = -1, tid = -1, uid = UINT_MAX;
627
628 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
629 kwlist, &pid, &tid, &uid))
630 return -1;
631
632 pthreads->threads = thread_map__new(pid, tid, uid);
633 if (pthreads->threads == NULL)
634 return -1;
635 return 0;
636}
637
638static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
639{
640 perf_thread_map__put(pthreads->threads);
641 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
642}
643
644static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
645{
646 struct pyrf_thread_map *pthreads = (void *)obj;
647
648 return pthreads->threads->nr;
649}
650
651static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
652{
653 struct pyrf_thread_map *pthreads = (void *)obj;
654
655 if (i >= pthreads->threads->nr)
656 return NULL;
657
658 return Py_BuildValue("i", pthreads->threads->map[i]);
659}
660
661static PySequenceMethods pyrf_thread_map__sequence_methods = {
662 .sq_length = pyrf_thread_map__length,
663 .sq_item = pyrf_thread_map__item,
664};
665
666static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
667
668static PyTypeObject pyrf_thread_map__type = {
669 PyVarObject_HEAD_INIT(NULL, 0)
670 .tp_name = "perf.thread_map",
671 .tp_basicsize = sizeof(struct pyrf_thread_map),
672 .tp_dealloc = (destructor)pyrf_thread_map__delete,
673 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
674 .tp_doc = pyrf_thread_map__doc,
675 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
676 .tp_init = (initproc)pyrf_thread_map__init,
677};
678
679static int pyrf_thread_map__setup_types(void)
680{
681 pyrf_thread_map__type.tp_new = PyType_GenericNew;
682 return PyType_Ready(&pyrf_thread_map__type);
683}
684
685struct pyrf_evsel {
686 PyObject_HEAD
687
688 struct evsel evsel;
689};
690
691static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
692 PyObject *args, PyObject *kwargs)
693{
694 struct perf_event_attr attr = {
695 .type = PERF_TYPE_HARDWARE,
696 .config = PERF_COUNT_HW_CPU_CYCLES,
697 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
698 };
699 static char *kwlist[] = {
700 "type",
701 "config",
702 "sample_freq",
703 "sample_period",
704 "sample_type",
705 "read_format",
706 "disabled",
707 "inherit",
708 "pinned",
709 "exclusive",
710 "exclude_user",
711 "exclude_kernel",
712 "exclude_hv",
713 "exclude_idle",
714 "mmap",
715 "context_switch",
716 "comm",
717 "freq",
718 "inherit_stat",
719 "enable_on_exec",
720 "task",
721 "watermark",
722 "precise_ip",
723 "mmap_data",
724 "sample_id_all",
725 "wakeup_events",
726 "bp_type",
727 "bp_addr",
728 "bp_len",
729 NULL
730 };
731 u64 sample_period = 0;
732 u32 disabled = 0,
733 inherit = 0,
734 pinned = 0,
735 exclusive = 0,
736 exclude_user = 0,
737 exclude_kernel = 0,
738 exclude_hv = 0,
739 exclude_idle = 0,
740 mmap = 0,
741 context_switch = 0,
742 comm = 0,
743 freq = 1,
744 inherit_stat = 0,
745 enable_on_exec = 0,
746 task = 0,
747 watermark = 0,
748 precise_ip = 0,
749 mmap_data = 0,
750 sample_id_all = 1;
751 int idx = 0;
752
753 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
754 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
755 &attr.type, &attr.config, &attr.sample_freq,
756 &sample_period, &attr.sample_type,
757 &attr.read_format, &disabled, &inherit,
758 &pinned, &exclusive, &exclude_user,
759 &exclude_kernel, &exclude_hv, &exclude_idle,
760 &mmap, &context_switch, &comm, &freq, &inherit_stat,
761 &enable_on_exec, &task, &watermark,
762 &precise_ip, &mmap_data, &sample_id_all,
763 &attr.wakeup_events, &attr.bp_type,
764 &attr.bp_addr, &attr.bp_len, &idx))
765 return -1;
766
767 /* union... */
768 if (sample_period != 0) {
769 if (attr.sample_freq != 0)
770 return -1; /* FIXME: throw right exception */
771 attr.sample_period = sample_period;
772 }
773
774 /* Bitfields */
775 attr.disabled = disabled;
776 attr.inherit = inherit;
777 attr.pinned = pinned;
778 attr.exclusive = exclusive;
779 attr.exclude_user = exclude_user;
780 attr.exclude_kernel = exclude_kernel;
781 attr.exclude_hv = exclude_hv;
782 attr.exclude_idle = exclude_idle;
783 attr.mmap = mmap;
784 attr.context_switch = context_switch;
785 attr.comm = comm;
786 attr.freq = freq;
787 attr.inherit_stat = inherit_stat;
788 attr.enable_on_exec = enable_on_exec;
789 attr.task = task;
790 attr.watermark = watermark;
791 attr.precise_ip = precise_ip;
792 attr.mmap_data = mmap_data;
793 attr.sample_id_all = sample_id_all;
794 attr.size = sizeof(attr);
795
796 evsel__init(&pevsel->evsel, &attr, idx);
797 return 0;
798}
799
800static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
801{
802 perf_evsel__exit(&pevsel->evsel);
803 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
804}
805
806static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
807 PyObject *args, PyObject *kwargs)
808{
809 struct evsel *evsel = &pevsel->evsel;
810 struct perf_cpu_map *cpus = NULL;
811 struct perf_thread_map *threads = NULL;
812 PyObject *pcpus = NULL, *pthreads = NULL;
813 int group = 0, inherit = 0;
814 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
815
816 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
817 &pcpus, &pthreads, &group, &inherit))
818 return NULL;
819
820 if (pthreads != NULL)
821 threads = ((struct pyrf_thread_map *)pthreads)->threads;
822
823 if (pcpus != NULL)
824 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
825
826 evsel->core.attr.inherit = inherit;
827 /*
828 * This will group just the fds for this single evsel, to group
829 * multiple events, use evlist.open().
830 */
831 if (evsel__open(evsel, cpus, threads) < 0) {
832 PyErr_SetFromErrno(PyExc_OSError);
833 return NULL;
834 }
835
836 Py_INCREF(Py_None);
837 return Py_None;
838}
839
840static PyMethodDef pyrf_evsel__methods[] = {
841 {
842 .ml_name = "open",
843 .ml_meth = (PyCFunction)pyrf_evsel__open,
844 .ml_flags = METH_VARARGS | METH_KEYWORDS,
845 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
846 },
847 { .ml_name = NULL, }
848};
849
850static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
851
852static PyTypeObject pyrf_evsel__type = {
853 PyVarObject_HEAD_INIT(NULL, 0)
854 .tp_name = "perf.evsel",
855 .tp_basicsize = sizeof(struct pyrf_evsel),
856 .tp_dealloc = (destructor)pyrf_evsel__delete,
857 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
858 .tp_doc = pyrf_evsel__doc,
859 .tp_methods = pyrf_evsel__methods,
860 .tp_init = (initproc)pyrf_evsel__init,
861};
862
863static int pyrf_evsel__setup_types(void)
864{
865 pyrf_evsel__type.tp_new = PyType_GenericNew;
866 return PyType_Ready(&pyrf_evsel__type);
867}
868
869struct pyrf_evlist {
870 PyObject_HEAD
871
872 struct evlist evlist;
873};
874
875static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
876 PyObject *args, PyObject *kwargs __maybe_unused)
877{
878 PyObject *pcpus = NULL, *pthreads = NULL;
879 struct perf_cpu_map *cpus;
880 struct perf_thread_map *threads;
881
882 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
883 return -1;
884
885 threads = ((struct pyrf_thread_map *)pthreads)->threads;
886 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
887 evlist__init(&pevlist->evlist, cpus, threads);
888 return 0;
889}
890
891static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
892{
893 evlist__exit(&pevlist->evlist);
894 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
895}
896
897static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
898 PyObject *args, PyObject *kwargs)
899{
900 struct evlist *evlist = &pevlist->evlist;
901 static char *kwlist[] = { "pages", "overwrite", NULL };
902 int pages = 128, overwrite = false;
903
904 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
905 &pages, &overwrite))
906 return NULL;
907
908 if (evlist__mmap(evlist, pages) < 0) {
909 PyErr_SetFromErrno(PyExc_OSError);
910 return NULL;
911 }
912
913 Py_INCREF(Py_None);
914 return Py_None;
915}
916
917static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
918 PyObject *args, PyObject *kwargs)
919{
920 struct evlist *evlist = &pevlist->evlist;
921 static char *kwlist[] = { "timeout", NULL };
922 int timeout = -1, n;
923
924 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
925 return NULL;
926
927 n = evlist__poll(evlist, timeout);
928 if (n < 0) {
929 PyErr_SetFromErrno(PyExc_OSError);
930 return NULL;
931 }
932
933 return Py_BuildValue("i", n);
934}
935
936static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
937 PyObject *args __maybe_unused,
938 PyObject *kwargs __maybe_unused)
939{
940 struct evlist *evlist = &pevlist->evlist;
941 PyObject *list = PyList_New(0);
942 int i;
943
944 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
945 PyObject *file;
946#if PY_MAJOR_VERSION < 3
947 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
948
949 if (fp == NULL)
950 goto free_list;
951
952 file = PyFile_FromFile(fp, "perf", "r", NULL);
953#else
954 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
955 NULL, NULL, NULL, 0);
956#endif
957 if (file == NULL)
958 goto free_list;
959
960 if (PyList_Append(list, file) != 0) {
961 Py_DECREF(file);
962 goto free_list;
963 }
964
965 Py_DECREF(file);
966 }
967
968 return list;
969free_list:
970 return PyErr_NoMemory();
971}
972
973
974static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
975 PyObject *args,
976 PyObject *kwargs __maybe_unused)
977{
978 struct evlist *evlist = &pevlist->evlist;
979 PyObject *pevsel;
980 struct evsel *evsel;
981
982 if (!PyArg_ParseTuple(args, "O", &pevsel))
983 return NULL;
984
985 Py_INCREF(pevsel);
986 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
987 evsel->idx = evlist->core.nr_entries;
988 evlist__add(evlist, evsel);
989
990 return Py_BuildValue("i", evlist->core.nr_entries);
991}
992
993static struct mmap *get_md(struct evlist *evlist, int cpu)
994{
995 int i;
996
997 for (i = 0; i < evlist->core.nr_mmaps; i++) {
998 struct mmap *md = &evlist->mmap[i];
999
1000 if (md->core.cpu == cpu)
1001 return md;
1002 }
1003
1004 return NULL;
1005}
1006
1007static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1008 PyObject *args, PyObject *kwargs)
1009{
1010 struct evlist *evlist = &pevlist->evlist;
1011 union perf_event *event;
1012 int sample_id_all = 1, cpu;
1013 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1014 struct mmap *md;
1015 int err;
1016
1017 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1018 &cpu, &sample_id_all))
1019 return NULL;
1020
1021 md = get_md(evlist, cpu);
1022 if (!md)
1023 return NULL;
1024
1025 if (perf_mmap__read_init(md) < 0)
1026 goto end;
1027
1028 event = perf_mmap__read_event(md);
1029 if (event != NULL) {
1030 PyObject *pyevent = pyrf_event__new(event);
1031 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1032 struct evsel *evsel;
1033
1034 if (pyevent == NULL)
1035 return PyErr_NoMemory();
1036
1037 evsel = perf_evlist__event2evsel(evlist, event);
1038 if (!evsel) {
1039 Py_INCREF(Py_None);
1040 return Py_None;
1041 }
1042
1043 pevent->evsel = evsel;
1044
1045 err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
1046
1047 /* Consume the even only after we parsed it out. */
1048 perf_mmap__consume(md);
1049
1050 if (err)
1051 return PyErr_Format(PyExc_OSError,
1052 "perf: can't parse sample, err=%d", err);
1053 return pyevent;
1054 }
1055end:
1056 Py_INCREF(Py_None);
1057 return Py_None;
1058}
1059
1060static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1061 PyObject *args, PyObject *kwargs)
1062{
1063 struct evlist *evlist = &pevlist->evlist;
1064 int group = 0;
1065 static char *kwlist[] = { "group", NULL };
1066
1067 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1068 return NULL;
1069
1070 if (group)
1071 perf_evlist__set_leader(evlist);
1072
1073 if (evlist__open(evlist) < 0) {
1074 PyErr_SetFromErrno(PyExc_OSError);
1075 return NULL;
1076 }
1077
1078 Py_INCREF(Py_None);
1079 return Py_None;
1080}
1081
1082static PyMethodDef pyrf_evlist__methods[] = {
1083 {
1084 .ml_name = "mmap",
1085 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1086 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1087 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1088 },
1089 {
1090 .ml_name = "open",
1091 .ml_meth = (PyCFunction)pyrf_evlist__open,
1092 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1093 .ml_doc = PyDoc_STR("open the file descriptors.")
1094 },
1095 {
1096 .ml_name = "poll",
1097 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1098 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1099 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1100 },
1101 {
1102 .ml_name = "get_pollfd",
1103 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1104 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1105 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1106 },
1107 {
1108 .ml_name = "add",
1109 .ml_meth = (PyCFunction)pyrf_evlist__add,
1110 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1111 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1112 },
1113 {
1114 .ml_name = "read_on_cpu",
1115 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1116 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1117 .ml_doc = PyDoc_STR("reads an event.")
1118 },
1119 { .ml_name = NULL, }
1120};
1121
1122static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1123{
1124 struct pyrf_evlist *pevlist = (void *)obj;
1125
1126 return pevlist->evlist.core.nr_entries;
1127}
1128
1129static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1130{
1131 struct pyrf_evlist *pevlist = (void *)obj;
1132 struct evsel *pos;
1133
1134 if (i >= pevlist->evlist.core.nr_entries)
1135 return NULL;
1136
1137 evlist__for_each_entry(&pevlist->evlist, pos) {
1138 if (i-- == 0)
1139 break;
1140 }
1141
1142 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1143}
1144
1145static PySequenceMethods pyrf_evlist__sequence_methods = {
1146 .sq_length = pyrf_evlist__length,
1147 .sq_item = pyrf_evlist__item,
1148};
1149
1150static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1151
1152static PyTypeObject pyrf_evlist__type = {
1153 PyVarObject_HEAD_INIT(NULL, 0)
1154 .tp_name = "perf.evlist",
1155 .tp_basicsize = sizeof(struct pyrf_evlist),
1156 .tp_dealloc = (destructor)pyrf_evlist__delete,
1157 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1158 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1159 .tp_doc = pyrf_evlist__doc,
1160 .tp_methods = pyrf_evlist__methods,
1161 .tp_init = (initproc)pyrf_evlist__init,
1162};
1163
1164static int pyrf_evlist__setup_types(void)
1165{
1166 pyrf_evlist__type.tp_new = PyType_GenericNew;
1167 return PyType_Ready(&pyrf_evlist__type);
1168}
1169
1170#define PERF_CONST(name) { #name, PERF_##name }
1171
1172static struct {
1173 const char *name;
1174 int value;
1175} perf__constants[] = {
1176 PERF_CONST(TYPE_HARDWARE),
1177 PERF_CONST(TYPE_SOFTWARE),
1178 PERF_CONST(TYPE_TRACEPOINT),
1179 PERF_CONST(TYPE_HW_CACHE),
1180 PERF_CONST(TYPE_RAW),
1181 PERF_CONST(TYPE_BREAKPOINT),
1182
1183 PERF_CONST(COUNT_HW_CPU_CYCLES),
1184 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1185 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1186 PERF_CONST(COUNT_HW_CACHE_MISSES),
1187 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1188 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1189 PERF_CONST(COUNT_HW_BUS_CYCLES),
1190 PERF_CONST(COUNT_HW_CACHE_L1D),
1191 PERF_CONST(COUNT_HW_CACHE_L1I),
1192 PERF_CONST(COUNT_HW_CACHE_LL),
1193 PERF_CONST(COUNT_HW_CACHE_DTLB),
1194 PERF_CONST(COUNT_HW_CACHE_ITLB),
1195 PERF_CONST(COUNT_HW_CACHE_BPU),
1196 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1197 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1198 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1199 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1200 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1201
1202 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1203 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1204
1205 PERF_CONST(COUNT_SW_CPU_CLOCK),
1206 PERF_CONST(COUNT_SW_TASK_CLOCK),
1207 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1208 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1209 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1210 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1211 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1212 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1213 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1214 PERF_CONST(COUNT_SW_DUMMY),
1215
1216 PERF_CONST(SAMPLE_IP),
1217 PERF_CONST(SAMPLE_TID),
1218 PERF_CONST(SAMPLE_TIME),
1219 PERF_CONST(SAMPLE_ADDR),
1220 PERF_CONST(SAMPLE_READ),
1221 PERF_CONST(SAMPLE_CALLCHAIN),
1222 PERF_CONST(SAMPLE_ID),
1223 PERF_CONST(SAMPLE_CPU),
1224 PERF_CONST(SAMPLE_PERIOD),
1225 PERF_CONST(SAMPLE_STREAM_ID),
1226 PERF_CONST(SAMPLE_RAW),
1227
1228 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1229 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1230 PERF_CONST(FORMAT_ID),
1231 PERF_CONST(FORMAT_GROUP),
1232
1233 PERF_CONST(RECORD_MMAP),
1234 PERF_CONST(RECORD_LOST),
1235 PERF_CONST(RECORD_COMM),
1236 PERF_CONST(RECORD_EXIT),
1237 PERF_CONST(RECORD_THROTTLE),
1238 PERF_CONST(RECORD_UNTHROTTLE),
1239 PERF_CONST(RECORD_FORK),
1240 PERF_CONST(RECORD_READ),
1241 PERF_CONST(RECORD_SAMPLE),
1242 PERF_CONST(RECORD_MMAP2),
1243 PERF_CONST(RECORD_AUX),
1244 PERF_CONST(RECORD_ITRACE_START),
1245 PERF_CONST(RECORD_LOST_SAMPLES),
1246 PERF_CONST(RECORD_SWITCH),
1247 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1248
1249 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1250 { .name = NULL, },
1251};
1252
1253static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1254 PyObject *args, PyObject *kwargs)
1255{
1256 struct tep_event *tp_format;
1257 static char *kwlist[] = { "sys", "name", NULL };
1258 char *sys = NULL;
1259 char *name = NULL;
1260
1261 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1262 &sys, &name))
1263 return NULL;
1264
1265 tp_format = trace_event__tp_format(sys, name);
1266 if (IS_ERR(tp_format))
1267 return _PyLong_FromLong(-1);
1268
1269 return _PyLong_FromLong(tp_format->id);
1270}
1271
1272static PyMethodDef perf__methods[] = {
1273 {
1274 .ml_name = "tracepoint",
1275 .ml_meth = (PyCFunction) pyrf__tracepoint,
1276 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1277 .ml_doc = PyDoc_STR("Get tracepoint config.")
1278 },
1279 { .ml_name = NULL, }
1280};
1281
1282#if PY_MAJOR_VERSION < 3
1283PyMODINIT_FUNC initperf(void)
1284#else
1285PyMODINIT_FUNC PyInit_perf(void)
1286#endif
1287{
1288 PyObject *obj;
1289 int i;
1290 PyObject *dict;
1291#if PY_MAJOR_VERSION < 3
1292 PyObject *module = Py_InitModule("perf", perf__methods);
1293#else
1294 static struct PyModuleDef moduledef = {
1295 PyModuleDef_HEAD_INIT,
1296 "perf", /* m_name */
1297 "", /* m_doc */
1298 -1, /* m_size */
1299 perf__methods, /* m_methods */
1300 NULL, /* m_reload */
1301 NULL, /* m_traverse */
1302 NULL, /* m_clear */
1303 NULL, /* m_free */
1304 };
1305 PyObject *module = PyModule_Create(&moduledef);
1306#endif
1307
1308 if (module == NULL ||
1309 pyrf_event__setup_types() < 0 ||
1310 pyrf_evlist__setup_types() < 0 ||
1311 pyrf_evsel__setup_types() < 0 ||
1312 pyrf_thread_map__setup_types() < 0 ||
1313 pyrf_cpu_map__setup_types() < 0)
1314#if PY_MAJOR_VERSION < 3
1315 return;
1316#else
1317 return module;
1318#endif
1319
1320 /* The page_size is placed in util object. */
1321 page_size = sysconf(_SC_PAGE_SIZE);
1322
1323 Py_INCREF(&pyrf_evlist__type);
1324 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1325
1326 Py_INCREF(&pyrf_evsel__type);
1327 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1328
1329 Py_INCREF(&pyrf_mmap_event__type);
1330 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1331
1332 Py_INCREF(&pyrf_lost_event__type);
1333 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1334
1335 Py_INCREF(&pyrf_comm_event__type);
1336 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1337
1338 Py_INCREF(&pyrf_task_event__type);
1339 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1340
1341 Py_INCREF(&pyrf_throttle_event__type);
1342 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1343
1344 Py_INCREF(&pyrf_task_event__type);
1345 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1346
1347 Py_INCREF(&pyrf_read_event__type);
1348 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1349
1350 Py_INCREF(&pyrf_sample_event__type);
1351 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1352
1353 Py_INCREF(&pyrf_context_switch_event__type);
1354 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1355
1356 Py_INCREF(&pyrf_thread_map__type);
1357 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1358
1359 Py_INCREF(&pyrf_cpu_map__type);
1360 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1361
1362 dict = PyModule_GetDict(module);
1363 if (dict == NULL)
1364 goto error;
1365
1366 for (i = 0; perf__constants[i].name != NULL; i++) {
1367 obj = _PyLong_FromLong(perf__constants[i].value);
1368 if (obj == NULL)
1369 goto error;
1370 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1371 Py_DECREF(obj);
1372 }
1373
1374error:
1375 if (PyErr_Occurred())
1376 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1377#if PY_MAJOR_VERSION >= 3
1378 return module;
1379#endif
1380}
1381
1382/*
1383 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1384 * binding.
1385 */
1386void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1387 int fd, int group_fd, unsigned long flags)
1388{
1389}
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}