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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#include <traceevent/event-parse.h>
9#include <perf/mmap.h>
10#include "evlist.h"
11#include "callchain.h"
12#include "evsel.h"
13#include "event.h"
14#include "print_binary.h"
15#include "thread_map.h"
16#include "trace-event.h"
17#include "mmap.h"
18#include "util/env.h"
19#include <internal/lib.h>
20#include "../perf-sys.h"
21
22#if PY_MAJOR_VERSION < 3
23#define _PyUnicode_FromString(arg) \
24 PyString_FromString(arg)
25#define _PyUnicode_AsString(arg) \
26 PyString_AsString(arg)
27#define _PyUnicode_FromFormat(...) \
28 PyString_FromFormat(__VA_ARGS__)
29#define _PyLong_FromLong(arg) \
30 PyInt_FromLong(arg)
31
32#else
33
34#define _PyUnicode_FromString(arg) \
35 PyUnicode_FromString(arg)
36#define _PyUnicode_FromFormat(...) \
37 PyUnicode_FromFormat(__VA_ARGS__)
38#define _PyLong_FromLong(arg) \
39 PyLong_FromLong(arg)
40#endif
41
42#ifndef Py_TYPE
43#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
44#endif
45
46/*
47 * Provide these two so that we don't have to link against callchain.c and
48 * start dragging hist.c, etc.
49 */
50struct callchain_param callchain_param;
51
52int parse_callchain_record(const char *arg __maybe_unused,
53 struct callchain_param *param __maybe_unused)
54{
55 return 0;
56}
57
58/*
59 * Add this one here not to drag util/env.c
60 */
61struct perf_env perf_env;
62
63/*
64 * Support debug printing even though util/debug.c is not linked. That means
65 * implementing 'verbose' and 'eprintf'.
66 */
67int verbose;
68int debug_peo_args;
69
70int eprintf(int level, int var, const char *fmt, ...);
71
72int eprintf(int level, int var, const char *fmt, ...)
73{
74 va_list args;
75 int ret = 0;
76
77 if (var >= level) {
78 va_start(args, fmt);
79 ret = vfprintf(stderr, fmt, args);
80 va_end(args);
81 }
82
83 return ret;
84}
85
86/* Define PyVarObject_HEAD_INIT for python 2.5 */
87#ifndef PyVarObject_HEAD_INIT
88# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
89#endif
90
91#if PY_MAJOR_VERSION < 3
92PyMODINIT_FUNC initperf(void);
93#else
94PyMODINIT_FUNC PyInit_perf(void);
95#endif
96
97#define member_def(type, member, ptype, help) \
98 { #member, ptype, \
99 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
100 0, help }
101
102#define sample_member_def(name, member, ptype, help) \
103 { #name, ptype, \
104 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
105 0, help }
106
107struct pyrf_event {
108 PyObject_HEAD
109 struct evsel *evsel;
110 struct perf_sample sample;
111 union perf_event event;
112};
113
114#define sample_members \
115 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
116 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
117 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
118 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
119 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
120 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
121 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
122 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
123 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
124
125static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
126
127static PyMemberDef pyrf_mmap_event__members[] = {
128 sample_members
129 member_def(perf_event_header, type, T_UINT, "event type"),
130 member_def(perf_event_header, misc, T_UINT, "event misc"),
131 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
132 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
133 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
134 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
135 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
136 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
137 { .name = NULL, },
138};
139
140static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
141{
142 PyObject *ret;
143 char *s;
144
145 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
146 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
147 "filename: %s }",
148 pevent->event.mmap.pid, pevent->event.mmap.tid,
149 pevent->event.mmap.start, pevent->event.mmap.len,
150 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
151 ret = PyErr_NoMemory();
152 } else {
153 ret = _PyUnicode_FromString(s);
154 free(s);
155 }
156 return ret;
157}
158
159static PyTypeObject pyrf_mmap_event__type = {
160 PyVarObject_HEAD_INIT(NULL, 0)
161 .tp_name = "perf.mmap_event",
162 .tp_basicsize = sizeof(struct pyrf_event),
163 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
164 .tp_doc = pyrf_mmap_event__doc,
165 .tp_members = pyrf_mmap_event__members,
166 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
167};
168
169static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
170
171static PyMemberDef pyrf_task_event__members[] = {
172 sample_members
173 member_def(perf_event_header, type, T_UINT, "event type"),
174 member_def(perf_record_fork, pid, T_UINT, "event pid"),
175 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
176 member_def(perf_record_fork, tid, T_UINT, "event tid"),
177 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
178 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
179 { .name = NULL, },
180};
181
182static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
183{
184 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
185 "ptid: %u, time: %" PRI_lu64 "}",
186 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
187 pevent->event.fork.pid,
188 pevent->event.fork.ppid,
189 pevent->event.fork.tid,
190 pevent->event.fork.ptid,
191 pevent->event.fork.time);
192}
193
194static PyTypeObject pyrf_task_event__type = {
195 PyVarObject_HEAD_INIT(NULL, 0)
196 .tp_name = "perf.task_event",
197 .tp_basicsize = sizeof(struct pyrf_event),
198 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
199 .tp_doc = pyrf_task_event__doc,
200 .tp_members = pyrf_task_event__members,
201 .tp_repr = (reprfunc)pyrf_task_event__repr,
202};
203
204static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
205
206static PyMemberDef pyrf_comm_event__members[] = {
207 sample_members
208 member_def(perf_event_header, type, T_UINT, "event type"),
209 member_def(perf_record_comm, pid, T_UINT, "event pid"),
210 member_def(perf_record_comm, tid, T_UINT, "event tid"),
211 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
212 { .name = NULL, },
213};
214
215static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
216{
217 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
218 pevent->event.comm.pid,
219 pevent->event.comm.tid,
220 pevent->event.comm.comm);
221}
222
223static PyTypeObject pyrf_comm_event__type = {
224 PyVarObject_HEAD_INIT(NULL, 0)
225 .tp_name = "perf.comm_event",
226 .tp_basicsize = sizeof(struct pyrf_event),
227 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
228 .tp_doc = pyrf_comm_event__doc,
229 .tp_members = pyrf_comm_event__members,
230 .tp_repr = (reprfunc)pyrf_comm_event__repr,
231};
232
233static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
234
235static PyMemberDef pyrf_throttle_event__members[] = {
236 sample_members
237 member_def(perf_event_header, type, T_UINT, "event type"),
238 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
239 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
240 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
241 { .name = NULL, },
242};
243
244static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
245{
246 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
247
248 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
249 ", stream_id: %" PRI_lu64 " }",
250 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
251 te->time, te->id, te->stream_id);
252}
253
254static PyTypeObject pyrf_throttle_event__type = {
255 PyVarObject_HEAD_INIT(NULL, 0)
256 .tp_name = "perf.throttle_event",
257 .tp_basicsize = sizeof(struct pyrf_event),
258 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
259 .tp_doc = pyrf_throttle_event__doc,
260 .tp_members = pyrf_throttle_event__members,
261 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
262};
263
264static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
265
266static PyMemberDef pyrf_lost_event__members[] = {
267 sample_members
268 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
269 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
270 { .name = NULL, },
271};
272
273static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
274{
275 PyObject *ret;
276 char *s;
277
278 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
279 "lost: %#" PRI_lx64 " }",
280 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
281 ret = PyErr_NoMemory();
282 } else {
283 ret = _PyUnicode_FromString(s);
284 free(s);
285 }
286 return ret;
287}
288
289static PyTypeObject pyrf_lost_event__type = {
290 PyVarObject_HEAD_INIT(NULL, 0)
291 .tp_name = "perf.lost_event",
292 .tp_basicsize = sizeof(struct pyrf_event),
293 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
294 .tp_doc = pyrf_lost_event__doc,
295 .tp_members = pyrf_lost_event__members,
296 .tp_repr = (reprfunc)pyrf_lost_event__repr,
297};
298
299static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
300
301static PyMemberDef pyrf_read_event__members[] = {
302 sample_members
303 member_def(perf_record_read, pid, T_UINT, "event pid"),
304 member_def(perf_record_read, tid, T_UINT, "event tid"),
305 { .name = NULL, },
306};
307
308static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
309{
310 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
311 pevent->event.read.pid,
312 pevent->event.read.tid);
313 /*
314 * FIXME: return the array of read values,
315 * making this method useful ;-)
316 */
317}
318
319static PyTypeObject pyrf_read_event__type = {
320 PyVarObject_HEAD_INIT(NULL, 0)
321 .tp_name = "perf.read_event",
322 .tp_basicsize = sizeof(struct pyrf_event),
323 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
324 .tp_doc = pyrf_read_event__doc,
325 .tp_members = pyrf_read_event__members,
326 .tp_repr = (reprfunc)pyrf_read_event__repr,
327};
328
329static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
330
331static PyMemberDef pyrf_sample_event__members[] = {
332 sample_members
333 member_def(perf_event_header, type, T_UINT, "event type"),
334 { .name = NULL, },
335};
336
337static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
338{
339 PyObject *ret;
340 char *s;
341
342 if (asprintf(&s, "{ type: sample }") < 0) {
343 ret = PyErr_NoMemory();
344 } else {
345 ret = _PyUnicode_FromString(s);
346 free(s);
347 }
348 return ret;
349}
350
351static bool is_tracepoint(struct pyrf_event *pevent)
352{
353 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
354}
355
356static PyObject*
357tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
358{
359 struct tep_handle *pevent = field->event->tep;
360 void *data = pe->sample.raw_data;
361 PyObject *ret = NULL;
362 unsigned long long val;
363 unsigned int offset, len;
364
365 if (field->flags & TEP_FIELD_IS_ARRAY) {
366 offset = field->offset;
367 len = field->size;
368 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
369 val = tep_read_number(pevent, data + offset, len);
370 offset = val;
371 len = offset >> 16;
372 offset &= 0xffff;
373 }
374 if (field->flags & TEP_FIELD_IS_STRING &&
375 is_printable_array(data + offset, len)) {
376 ret = _PyUnicode_FromString((char *)data + offset);
377 } else {
378 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
379 field->flags &= ~TEP_FIELD_IS_STRING;
380 }
381 } else {
382 val = tep_read_number(pevent, data + field->offset,
383 field->size);
384 if (field->flags & TEP_FIELD_IS_POINTER)
385 ret = PyLong_FromUnsignedLong((unsigned long) val);
386 else if (field->flags & TEP_FIELD_IS_SIGNED)
387 ret = PyLong_FromLong((long) val);
388 else
389 ret = PyLong_FromUnsignedLong((unsigned long) val);
390 }
391
392 return ret;
393}
394
395static PyObject*
396get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
397{
398 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
399 struct evsel *evsel = pevent->evsel;
400 struct tep_format_field *field;
401
402 if (!evsel->tp_format) {
403 struct tep_event *tp_format;
404
405 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
406 if (!tp_format)
407 return NULL;
408
409 evsel->tp_format = tp_format;
410 }
411
412 field = tep_find_any_field(evsel->tp_format, str);
413 if (!field)
414 return NULL;
415
416 return tracepoint_field(pevent, field);
417}
418
419static PyObject*
420pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
421{
422 PyObject *obj = NULL;
423
424 if (is_tracepoint(pevent))
425 obj = get_tracepoint_field(pevent, attr_name);
426
427 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
428}
429
430static PyTypeObject pyrf_sample_event__type = {
431 PyVarObject_HEAD_INIT(NULL, 0)
432 .tp_name = "perf.sample_event",
433 .tp_basicsize = sizeof(struct pyrf_event),
434 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
435 .tp_doc = pyrf_sample_event__doc,
436 .tp_members = pyrf_sample_event__members,
437 .tp_repr = (reprfunc)pyrf_sample_event__repr,
438 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
439};
440
441static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
442
443static PyMemberDef pyrf_context_switch_event__members[] = {
444 sample_members
445 member_def(perf_event_header, type, T_UINT, "event type"),
446 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
447 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
448 { .name = NULL, },
449};
450
451static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
452{
453 PyObject *ret;
454 char *s;
455
456 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
457 pevent->event.context_switch.next_prev_pid,
458 pevent->event.context_switch.next_prev_tid,
459 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
460 ret = PyErr_NoMemory();
461 } else {
462 ret = _PyUnicode_FromString(s);
463 free(s);
464 }
465 return ret;
466}
467
468static PyTypeObject pyrf_context_switch_event__type = {
469 PyVarObject_HEAD_INIT(NULL, 0)
470 .tp_name = "perf.context_switch_event",
471 .tp_basicsize = sizeof(struct pyrf_event),
472 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
473 .tp_doc = pyrf_context_switch_event__doc,
474 .tp_members = pyrf_context_switch_event__members,
475 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
476};
477
478static int pyrf_event__setup_types(void)
479{
480 int err;
481 pyrf_mmap_event__type.tp_new =
482 pyrf_task_event__type.tp_new =
483 pyrf_comm_event__type.tp_new =
484 pyrf_lost_event__type.tp_new =
485 pyrf_read_event__type.tp_new =
486 pyrf_sample_event__type.tp_new =
487 pyrf_context_switch_event__type.tp_new =
488 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
489 err = PyType_Ready(&pyrf_mmap_event__type);
490 if (err < 0)
491 goto out;
492 err = PyType_Ready(&pyrf_lost_event__type);
493 if (err < 0)
494 goto out;
495 err = PyType_Ready(&pyrf_task_event__type);
496 if (err < 0)
497 goto out;
498 err = PyType_Ready(&pyrf_comm_event__type);
499 if (err < 0)
500 goto out;
501 err = PyType_Ready(&pyrf_throttle_event__type);
502 if (err < 0)
503 goto out;
504 err = PyType_Ready(&pyrf_read_event__type);
505 if (err < 0)
506 goto out;
507 err = PyType_Ready(&pyrf_sample_event__type);
508 if (err < 0)
509 goto out;
510 err = PyType_Ready(&pyrf_context_switch_event__type);
511 if (err < 0)
512 goto out;
513out:
514 return err;
515}
516
517static PyTypeObject *pyrf_event__type[] = {
518 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
519 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
520 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
521 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
522 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
523 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
524 [PERF_RECORD_FORK] = &pyrf_task_event__type,
525 [PERF_RECORD_READ] = &pyrf_read_event__type,
526 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
527 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
528 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
529};
530
531static PyObject *pyrf_event__new(union perf_event *event)
532{
533 struct pyrf_event *pevent;
534 PyTypeObject *ptype;
535
536 if ((event->header.type < PERF_RECORD_MMAP ||
537 event->header.type > PERF_RECORD_SAMPLE) &&
538 !(event->header.type == PERF_RECORD_SWITCH ||
539 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
540 return NULL;
541
542 ptype = pyrf_event__type[event->header.type];
543 pevent = PyObject_New(struct pyrf_event, ptype);
544 if (pevent != NULL)
545 memcpy(&pevent->event, event, event->header.size);
546 return (PyObject *)pevent;
547}
548
549struct pyrf_cpu_map {
550 PyObject_HEAD
551
552 struct perf_cpu_map *cpus;
553};
554
555static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
556 PyObject *args, PyObject *kwargs)
557{
558 static char *kwlist[] = { "cpustr", NULL };
559 char *cpustr = NULL;
560
561 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
562 kwlist, &cpustr))
563 return -1;
564
565 pcpus->cpus = perf_cpu_map__new(cpustr);
566 if (pcpus->cpus == NULL)
567 return -1;
568 return 0;
569}
570
571static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
572{
573 perf_cpu_map__put(pcpus->cpus);
574 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
575}
576
577static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
578{
579 struct pyrf_cpu_map *pcpus = (void *)obj;
580
581 return pcpus->cpus->nr;
582}
583
584static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
585{
586 struct pyrf_cpu_map *pcpus = (void *)obj;
587
588 if (i >= pcpus->cpus->nr)
589 return NULL;
590
591 return Py_BuildValue("i", pcpus->cpus->map[i]);
592}
593
594static PySequenceMethods pyrf_cpu_map__sequence_methods = {
595 .sq_length = pyrf_cpu_map__length,
596 .sq_item = pyrf_cpu_map__item,
597};
598
599static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
600
601static PyTypeObject pyrf_cpu_map__type = {
602 PyVarObject_HEAD_INIT(NULL, 0)
603 .tp_name = "perf.cpu_map",
604 .tp_basicsize = sizeof(struct pyrf_cpu_map),
605 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
606 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
607 .tp_doc = pyrf_cpu_map__doc,
608 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
609 .tp_init = (initproc)pyrf_cpu_map__init,
610};
611
612static int pyrf_cpu_map__setup_types(void)
613{
614 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
615 return PyType_Ready(&pyrf_cpu_map__type);
616}
617
618struct pyrf_thread_map {
619 PyObject_HEAD
620
621 struct perf_thread_map *threads;
622};
623
624static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
625 PyObject *args, PyObject *kwargs)
626{
627 static char *kwlist[] = { "pid", "tid", "uid", NULL };
628 int pid = -1, tid = -1, uid = UINT_MAX;
629
630 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
631 kwlist, &pid, &tid, &uid))
632 return -1;
633
634 pthreads->threads = thread_map__new(pid, tid, uid);
635 if (pthreads->threads == NULL)
636 return -1;
637 return 0;
638}
639
640static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
641{
642 perf_thread_map__put(pthreads->threads);
643 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
644}
645
646static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
647{
648 struct pyrf_thread_map *pthreads = (void *)obj;
649
650 return pthreads->threads->nr;
651}
652
653static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
654{
655 struct pyrf_thread_map *pthreads = (void *)obj;
656
657 if (i >= pthreads->threads->nr)
658 return NULL;
659
660 return Py_BuildValue("i", pthreads->threads->map[i]);
661}
662
663static PySequenceMethods pyrf_thread_map__sequence_methods = {
664 .sq_length = pyrf_thread_map__length,
665 .sq_item = pyrf_thread_map__item,
666};
667
668static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
669
670static PyTypeObject pyrf_thread_map__type = {
671 PyVarObject_HEAD_INIT(NULL, 0)
672 .tp_name = "perf.thread_map",
673 .tp_basicsize = sizeof(struct pyrf_thread_map),
674 .tp_dealloc = (destructor)pyrf_thread_map__delete,
675 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
676 .tp_doc = pyrf_thread_map__doc,
677 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
678 .tp_init = (initproc)pyrf_thread_map__init,
679};
680
681static int pyrf_thread_map__setup_types(void)
682{
683 pyrf_thread_map__type.tp_new = PyType_GenericNew;
684 return PyType_Ready(&pyrf_thread_map__type);
685}
686
687struct pyrf_evsel {
688 PyObject_HEAD
689
690 struct evsel evsel;
691};
692
693static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
694 PyObject *args, PyObject *kwargs)
695{
696 struct perf_event_attr attr = {
697 .type = PERF_TYPE_HARDWARE,
698 .config = PERF_COUNT_HW_CPU_CYCLES,
699 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
700 };
701 static char *kwlist[] = {
702 "type",
703 "config",
704 "sample_freq",
705 "sample_period",
706 "sample_type",
707 "read_format",
708 "disabled",
709 "inherit",
710 "pinned",
711 "exclusive",
712 "exclude_user",
713 "exclude_kernel",
714 "exclude_hv",
715 "exclude_idle",
716 "mmap",
717 "context_switch",
718 "comm",
719 "freq",
720 "inherit_stat",
721 "enable_on_exec",
722 "task",
723 "watermark",
724 "precise_ip",
725 "mmap_data",
726 "sample_id_all",
727 "wakeup_events",
728 "bp_type",
729 "bp_addr",
730 "bp_len",
731 NULL
732 };
733 u64 sample_period = 0;
734 u32 disabled = 0,
735 inherit = 0,
736 pinned = 0,
737 exclusive = 0,
738 exclude_user = 0,
739 exclude_kernel = 0,
740 exclude_hv = 0,
741 exclude_idle = 0,
742 mmap = 0,
743 context_switch = 0,
744 comm = 0,
745 freq = 1,
746 inherit_stat = 0,
747 enable_on_exec = 0,
748 task = 0,
749 watermark = 0,
750 precise_ip = 0,
751 mmap_data = 0,
752 sample_id_all = 1;
753 int idx = 0;
754
755 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
756 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
757 &attr.type, &attr.config, &attr.sample_freq,
758 &sample_period, &attr.sample_type,
759 &attr.read_format, &disabled, &inherit,
760 &pinned, &exclusive, &exclude_user,
761 &exclude_kernel, &exclude_hv, &exclude_idle,
762 &mmap, &context_switch, &comm, &freq, &inherit_stat,
763 &enable_on_exec, &task, &watermark,
764 &precise_ip, &mmap_data, &sample_id_all,
765 &attr.wakeup_events, &attr.bp_type,
766 &attr.bp_addr, &attr.bp_len, &idx))
767 return -1;
768
769 /* union... */
770 if (sample_period != 0) {
771 if (attr.sample_freq != 0)
772 return -1; /* FIXME: throw right exception */
773 attr.sample_period = sample_period;
774 }
775
776 /* Bitfields */
777 attr.disabled = disabled;
778 attr.inherit = inherit;
779 attr.pinned = pinned;
780 attr.exclusive = exclusive;
781 attr.exclude_user = exclude_user;
782 attr.exclude_kernel = exclude_kernel;
783 attr.exclude_hv = exclude_hv;
784 attr.exclude_idle = exclude_idle;
785 attr.mmap = mmap;
786 attr.context_switch = context_switch;
787 attr.comm = comm;
788 attr.freq = freq;
789 attr.inherit_stat = inherit_stat;
790 attr.enable_on_exec = enable_on_exec;
791 attr.task = task;
792 attr.watermark = watermark;
793 attr.precise_ip = precise_ip;
794 attr.mmap_data = mmap_data;
795 attr.sample_id_all = sample_id_all;
796 attr.size = sizeof(attr);
797
798 evsel__init(&pevsel->evsel, &attr, idx);
799 return 0;
800}
801
802static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
803{
804 evsel__exit(&pevsel->evsel);
805 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
806}
807
808static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
809 PyObject *args, PyObject *kwargs)
810{
811 struct evsel *evsel = &pevsel->evsel;
812 struct perf_cpu_map *cpus = NULL;
813 struct perf_thread_map *threads = NULL;
814 PyObject *pcpus = NULL, *pthreads = NULL;
815 int group = 0, inherit = 0;
816 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
817
818 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
819 &pcpus, &pthreads, &group, &inherit))
820 return NULL;
821
822 if (pthreads != NULL)
823 threads = ((struct pyrf_thread_map *)pthreads)->threads;
824
825 if (pcpus != NULL)
826 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
827
828 evsel->core.attr.inherit = inherit;
829 /*
830 * This will group just the fds for this single evsel, to group
831 * multiple events, use evlist.open().
832 */
833 if (evsel__open(evsel, cpus, threads) < 0) {
834 PyErr_SetFromErrno(PyExc_OSError);
835 return NULL;
836 }
837
838 Py_INCREF(Py_None);
839 return Py_None;
840}
841
842static PyMethodDef pyrf_evsel__methods[] = {
843 {
844 .ml_name = "open",
845 .ml_meth = (PyCFunction)pyrf_evsel__open,
846 .ml_flags = METH_VARARGS | METH_KEYWORDS,
847 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
848 },
849 { .ml_name = NULL, }
850};
851
852static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
853
854static PyTypeObject pyrf_evsel__type = {
855 PyVarObject_HEAD_INIT(NULL, 0)
856 .tp_name = "perf.evsel",
857 .tp_basicsize = sizeof(struct pyrf_evsel),
858 .tp_dealloc = (destructor)pyrf_evsel__delete,
859 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
860 .tp_doc = pyrf_evsel__doc,
861 .tp_methods = pyrf_evsel__methods,
862 .tp_init = (initproc)pyrf_evsel__init,
863};
864
865static int pyrf_evsel__setup_types(void)
866{
867 pyrf_evsel__type.tp_new = PyType_GenericNew;
868 return PyType_Ready(&pyrf_evsel__type);
869}
870
871struct pyrf_evlist {
872 PyObject_HEAD
873
874 struct evlist evlist;
875};
876
877static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
878 PyObject *args, PyObject *kwargs __maybe_unused)
879{
880 PyObject *pcpus = NULL, *pthreads = NULL;
881 struct perf_cpu_map *cpus;
882 struct perf_thread_map *threads;
883
884 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
885 return -1;
886
887 threads = ((struct pyrf_thread_map *)pthreads)->threads;
888 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
889 evlist__init(&pevlist->evlist, cpus, threads);
890 return 0;
891}
892
893static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
894{
895 evlist__exit(&pevlist->evlist);
896 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
897}
898
899static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
900 PyObject *args, PyObject *kwargs)
901{
902 struct evlist *evlist = &pevlist->evlist;
903 static char *kwlist[] = { "pages", "overwrite", NULL };
904 int pages = 128, overwrite = false;
905
906 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
907 &pages, &overwrite))
908 return NULL;
909
910 if (evlist__mmap(evlist, pages) < 0) {
911 PyErr_SetFromErrno(PyExc_OSError);
912 return NULL;
913 }
914
915 Py_INCREF(Py_None);
916 return Py_None;
917}
918
919static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
920 PyObject *args, PyObject *kwargs)
921{
922 struct evlist *evlist = &pevlist->evlist;
923 static char *kwlist[] = { "timeout", NULL };
924 int timeout = -1, n;
925
926 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
927 return NULL;
928
929 n = evlist__poll(evlist, timeout);
930 if (n < 0) {
931 PyErr_SetFromErrno(PyExc_OSError);
932 return NULL;
933 }
934
935 return Py_BuildValue("i", n);
936}
937
938static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
939 PyObject *args __maybe_unused,
940 PyObject *kwargs __maybe_unused)
941{
942 struct evlist *evlist = &pevlist->evlist;
943 PyObject *list = PyList_New(0);
944 int i;
945
946 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
947 PyObject *file;
948#if PY_MAJOR_VERSION < 3
949 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
950
951 if (fp == NULL)
952 goto free_list;
953
954 file = PyFile_FromFile(fp, "perf", "r", NULL);
955#else
956 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
957 NULL, NULL, NULL, 0);
958#endif
959 if (file == NULL)
960 goto free_list;
961
962 if (PyList_Append(list, file) != 0) {
963 Py_DECREF(file);
964 goto free_list;
965 }
966
967 Py_DECREF(file);
968 }
969
970 return list;
971free_list:
972 return PyErr_NoMemory();
973}
974
975
976static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
977 PyObject *args,
978 PyObject *kwargs __maybe_unused)
979{
980 struct evlist *evlist = &pevlist->evlist;
981 PyObject *pevsel;
982 struct evsel *evsel;
983
984 if (!PyArg_ParseTuple(args, "O", &pevsel))
985 return NULL;
986
987 Py_INCREF(pevsel);
988 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
989 evsel->idx = evlist->core.nr_entries;
990 evlist__add(evlist, evsel);
991
992 return Py_BuildValue("i", evlist->core.nr_entries);
993}
994
995static struct mmap *get_md(struct evlist *evlist, int cpu)
996{
997 int i;
998
999 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1000 struct mmap *md = &evlist->mmap[i];
1001
1002 if (md->core.cpu == cpu)
1003 return md;
1004 }
1005
1006 return NULL;
1007}
1008
1009static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1010 PyObject *args, PyObject *kwargs)
1011{
1012 struct evlist *evlist = &pevlist->evlist;
1013 union perf_event *event;
1014 int sample_id_all = 1, cpu;
1015 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1016 struct mmap *md;
1017 int err;
1018
1019 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1020 &cpu, &sample_id_all))
1021 return NULL;
1022
1023 md = get_md(evlist, cpu);
1024 if (!md)
1025 return NULL;
1026
1027 if (perf_mmap__read_init(&md->core) < 0)
1028 goto end;
1029
1030 event = perf_mmap__read_event(&md->core);
1031 if (event != NULL) {
1032 PyObject *pyevent = pyrf_event__new(event);
1033 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1034 struct evsel *evsel;
1035
1036 if (pyevent == NULL)
1037 return PyErr_NoMemory();
1038
1039 evsel = perf_evlist__event2evsel(evlist, event);
1040 if (!evsel) {
1041 Py_INCREF(Py_None);
1042 return Py_None;
1043 }
1044
1045 pevent->evsel = evsel;
1046
1047 err = evsel__parse_sample(evsel, event, &pevent->sample);
1048
1049 /* Consume the even only after we parsed it out. */
1050 perf_mmap__consume(&md->core);
1051
1052 if (err)
1053 return PyErr_Format(PyExc_OSError,
1054 "perf: can't parse sample, err=%d", err);
1055 return pyevent;
1056 }
1057end:
1058 Py_INCREF(Py_None);
1059 return Py_None;
1060}
1061
1062static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1063 PyObject *args, PyObject *kwargs)
1064{
1065 struct evlist *evlist = &pevlist->evlist;
1066 int group = 0;
1067 static char *kwlist[] = { "group", NULL };
1068
1069 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1070 return NULL;
1071
1072 if (group)
1073 perf_evlist__set_leader(evlist);
1074
1075 if (evlist__open(evlist) < 0) {
1076 PyErr_SetFromErrno(PyExc_OSError);
1077 return NULL;
1078 }
1079
1080 Py_INCREF(Py_None);
1081 return Py_None;
1082}
1083
1084static PyMethodDef pyrf_evlist__methods[] = {
1085 {
1086 .ml_name = "mmap",
1087 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1088 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1089 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1090 },
1091 {
1092 .ml_name = "open",
1093 .ml_meth = (PyCFunction)pyrf_evlist__open,
1094 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1095 .ml_doc = PyDoc_STR("open the file descriptors.")
1096 },
1097 {
1098 .ml_name = "poll",
1099 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1100 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1101 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1102 },
1103 {
1104 .ml_name = "get_pollfd",
1105 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1106 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1107 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1108 },
1109 {
1110 .ml_name = "add",
1111 .ml_meth = (PyCFunction)pyrf_evlist__add,
1112 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1113 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1114 },
1115 {
1116 .ml_name = "read_on_cpu",
1117 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1118 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1119 .ml_doc = PyDoc_STR("reads an event.")
1120 },
1121 { .ml_name = NULL, }
1122};
1123
1124static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1125{
1126 struct pyrf_evlist *pevlist = (void *)obj;
1127
1128 return pevlist->evlist.core.nr_entries;
1129}
1130
1131static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1132{
1133 struct pyrf_evlist *pevlist = (void *)obj;
1134 struct evsel *pos;
1135
1136 if (i >= pevlist->evlist.core.nr_entries)
1137 return NULL;
1138
1139 evlist__for_each_entry(&pevlist->evlist, pos) {
1140 if (i-- == 0)
1141 break;
1142 }
1143
1144 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1145}
1146
1147static PySequenceMethods pyrf_evlist__sequence_methods = {
1148 .sq_length = pyrf_evlist__length,
1149 .sq_item = pyrf_evlist__item,
1150};
1151
1152static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1153
1154static PyTypeObject pyrf_evlist__type = {
1155 PyVarObject_HEAD_INIT(NULL, 0)
1156 .tp_name = "perf.evlist",
1157 .tp_basicsize = sizeof(struct pyrf_evlist),
1158 .tp_dealloc = (destructor)pyrf_evlist__delete,
1159 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1160 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1161 .tp_doc = pyrf_evlist__doc,
1162 .tp_methods = pyrf_evlist__methods,
1163 .tp_init = (initproc)pyrf_evlist__init,
1164};
1165
1166static int pyrf_evlist__setup_types(void)
1167{
1168 pyrf_evlist__type.tp_new = PyType_GenericNew;
1169 return PyType_Ready(&pyrf_evlist__type);
1170}
1171
1172#define PERF_CONST(name) { #name, PERF_##name }
1173
1174static struct {
1175 const char *name;
1176 int value;
1177} perf__constants[] = {
1178 PERF_CONST(TYPE_HARDWARE),
1179 PERF_CONST(TYPE_SOFTWARE),
1180 PERF_CONST(TYPE_TRACEPOINT),
1181 PERF_CONST(TYPE_HW_CACHE),
1182 PERF_CONST(TYPE_RAW),
1183 PERF_CONST(TYPE_BREAKPOINT),
1184
1185 PERF_CONST(COUNT_HW_CPU_CYCLES),
1186 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1187 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1188 PERF_CONST(COUNT_HW_CACHE_MISSES),
1189 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1190 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1191 PERF_CONST(COUNT_HW_BUS_CYCLES),
1192 PERF_CONST(COUNT_HW_CACHE_L1D),
1193 PERF_CONST(COUNT_HW_CACHE_L1I),
1194 PERF_CONST(COUNT_HW_CACHE_LL),
1195 PERF_CONST(COUNT_HW_CACHE_DTLB),
1196 PERF_CONST(COUNT_HW_CACHE_ITLB),
1197 PERF_CONST(COUNT_HW_CACHE_BPU),
1198 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1199 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1200 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1201 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1202 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1203
1204 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1205 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1206
1207 PERF_CONST(COUNT_SW_CPU_CLOCK),
1208 PERF_CONST(COUNT_SW_TASK_CLOCK),
1209 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1210 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1211 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1212 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1213 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1214 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1215 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1216 PERF_CONST(COUNT_SW_DUMMY),
1217
1218 PERF_CONST(SAMPLE_IP),
1219 PERF_CONST(SAMPLE_TID),
1220 PERF_CONST(SAMPLE_TIME),
1221 PERF_CONST(SAMPLE_ADDR),
1222 PERF_CONST(SAMPLE_READ),
1223 PERF_CONST(SAMPLE_CALLCHAIN),
1224 PERF_CONST(SAMPLE_ID),
1225 PERF_CONST(SAMPLE_CPU),
1226 PERF_CONST(SAMPLE_PERIOD),
1227 PERF_CONST(SAMPLE_STREAM_ID),
1228 PERF_CONST(SAMPLE_RAW),
1229
1230 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1231 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1232 PERF_CONST(FORMAT_ID),
1233 PERF_CONST(FORMAT_GROUP),
1234
1235 PERF_CONST(RECORD_MMAP),
1236 PERF_CONST(RECORD_LOST),
1237 PERF_CONST(RECORD_COMM),
1238 PERF_CONST(RECORD_EXIT),
1239 PERF_CONST(RECORD_THROTTLE),
1240 PERF_CONST(RECORD_UNTHROTTLE),
1241 PERF_CONST(RECORD_FORK),
1242 PERF_CONST(RECORD_READ),
1243 PERF_CONST(RECORD_SAMPLE),
1244 PERF_CONST(RECORD_MMAP2),
1245 PERF_CONST(RECORD_AUX),
1246 PERF_CONST(RECORD_ITRACE_START),
1247 PERF_CONST(RECORD_LOST_SAMPLES),
1248 PERF_CONST(RECORD_SWITCH),
1249 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1250
1251 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1252 { .name = NULL, },
1253};
1254
1255static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1256 PyObject *args, PyObject *kwargs)
1257{
1258 struct tep_event *tp_format;
1259 static char *kwlist[] = { "sys", "name", NULL };
1260 char *sys = NULL;
1261 char *name = NULL;
1262
1263 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1264 &sys, &name))
1265 return NULL;
1266
1267 tp_format = trace_event__tp_format(sys, name);
1268 if (IS_ERR(tp_format))
1269 return _PyLong_FromLong(-1);
1270
1271 return _PyLong_FromLong(tp_format->id);
1272}
1273
1274static PyMethodDef perf__methods[] = {
1275 {
1276 .ml_name = "tracepoint",
1277 .ml_meth = (PyCFunction) pyrf__tracepoint,
1278 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1279 .ml_doc = PyDoc_STR("Get tracepoint config.")
1280 },
1281 { .ml_name = NULL, }
1282};
1283
1284#if PY_MAJOR_VERSION < 3
1285PyMODINIT_FUNC initperf(void)
1286#else
1287PyMODINIT_FUNC PyInit_perf(void)
1288#endif
1289{
1290 PyObject *obj;
1291 int i;
1292 PyObject *dict;
1293#if PY_MAJOR_VERSION < 3
1294 PyObject *module = Py_InitModule("perf", perf__methods);
1295#else
1296 static struct PyModuleDef moduledef = {
1297 PyModuleDef_HEAD_INIT,
1298 "perf", /* m_name */
1299 "", /* m_doc */
1300 -1, /* m_size */
1301 perf__methods, /* m_methods */
1302 NULL, /* m_reload */
1303 NULL, /* m_traverse */
1304 NULL, /* m_clear */
1305 NULL, /* m_free */
1306 };
1307 PyObject *module = PyModule_Create(&moduledef);
1308#endif
1309
1310 if (module == NULL ||
1311 pyrf_event__setup_types() < 0 ||
1312 pyrf_evlist__setup_types() < 0 ||
1313 pyrf_evsel__setup_types() < 0 ||
1314 pyrf_thread_map__setup_types() < 0 ||
1315 pyrf_cpu_map__setup_types() < 0)
1316#if PY_MAJOR_VERSION < 3
1317 return;
1318#else
1319 return module;
1320#endif
1321
1322 /* The page_size is placed in util object. */
1323 page_size = sysconf(_SC_PAGE_SIZE);
1324
1325 Py_INCREF(&pyrf_evlist__type);
1326 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1327
1328 Py_INCREF(&pyrf_evsel__type);
1329 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1330
1331 Py_INCREF(&pyrf_mmap_event__type);
1332 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1333
1334 Py_INCREF(&pyrf_lost_event__type);
1335 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1336
1337 Py_INCREF(&pyrf_comm_event__type);
1338 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1339
1340 Py_INCREF(&pyrf_task_event__type);
1341 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1342
1343 Py_INCREF(&pyrf_throttle_event__type);
1344 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1345
1346 Py_INCREF(&pyrf_task_event__type);
1347 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1348
1349 Py_INCREF(&pyrf_read_event__type);
1350 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1351
1352 Py_INCREF(&pyrf_sample_event__type);
1353 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1354
1355 Py_INCREF(&pyrf_context_switch_event__type);
1356 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1357
1358 Py_INCREF(&pyrf_thread_map__type);
1359 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1360
1361 Py_INCREF(&pyrf_cpu_map__type);
1362 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1363
1364 dict = PyModule_GetDict(module);
1365 if (dict == NULL)
1366 goto error;
1367
1368 for (i = 0; perf__constants[i].name != NULL; i++) {
1369 obj = _PyLong_FromLong(perf__constants[i].value);
1370 if (obj == NULL)
1371 goto error;
1372 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1373 Py_DECREF(obj);
1374 }
1375
1376error:
1377 if (PyErr_Occurred())
1378 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1379#if PY_MAJOR_VERSION >= 3
1380 return module;
1381#endif
1382}
1383
1384/*
1385 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1386 * binding.
1387 */
1388void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1389 int fd, int group_fd, unsigned long flags)
1390{
1391}
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
106const char *perf_pmu__name_from_config(struct perf_pmu *pmu __maybe_unused, u64 config __maybe_unused)
107{
108 return NULL;
109}
110
111struct perf_pmu *perf_pmus__find_by_type(unsigned int type __maybe_unused)
112{
113 return NULL;
114}
115
116int perf_pmus__num_core_pmus(void)
117{
118 return 1;
119}
120
121bool evsel__is_aux_event(const struct evsel *evsel __maybe_unused)
122{
123 return false;
124}
125
126bool perf_pmus__supports_extended_type(void)
127{
128 return false;
129}
130
131/*
132 * Add this one here not to drag util/metricgroup.c
133 */
134int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
135 struct rblist *new_metric_events,
136 struct rblist *old_metric_events)
137{
138 return 0;
139}
140
141/*
142 * Add this one here not to drag util/trace-event-info.c
143 */
144char *tracepoint_id_to_name(u64 config)
145{
146 return NULL;
147}
148
149/*
150 * XXX: All these evsel destructors need some better mechanism, like a linked
151 * list of destructors registered when the relevant code indeed is used instead
152 * of having more and more calls in perf_evsel__delete(). -- acme
153 *
154 * For now, add some more:
155 *
156 * Not to drag the BPF bandwagon...
157 */
158void bpf_counter__destroy(struct evsel *evsel);
159int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd);
160int bpf_counter__disable(struct evsel *evsel);
161
162void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
163{
164}
165
166int bpf_counter__install_pe(struct evsel *evsel __maybe_unused, int cpu __maybe_unused, int fd __maybe_unused)
167{
168 return 0;
169}
170
171int bpf_counter__disable(struct evsel *evsel __maybe_unused)
172{
173 return 0;
174}
175
176// not to drag util/bpf-filter.c
177#ifdef HAVE_BPF_SKEL
178int perf_bpf_filter__prepare(struct evsel *evsel __maybe_unused)
179{
180 return 0;
181}
182
183int perf_bpf_filter__destroy(struct evsel *evsel __maybe_unused)
184{
185 return 0;
186}
187#endif
188
189/*
190 * Support debug printing even though util/debug.c is not linked. That means
191 * implementing 'verbose' and 'eprintf'.
192 */
193int verbose;
194int debug_kmaps;
195int debug_peo_args;
196
197int eprintf(int level, int var, const char *fmt, ...);
198
199int eprintf(int level, int var, const char *fmt, ...)
200{
201 va_list args;
202 int ret = 0;
203
204 if (var >= level) {
205 va_start(args, fmt);
206 ret = vfprintf(stderr, fmt, args);
207 va_end(args);
208 }
209
210 return ret;
211}
212
213/* Define PyVarObject_HEAD_INIT for python 2.5 */
214#ifndef PyVarObject_HEAD_INIT
215# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
216#endif
217
218#if PY_MAJOR_VERSION < 3
219PyMODINIT_FUNC initperf(void);
220#else
221PyMODINIT_FUNC PyInit_perf(void);
222#endif
223
224#define member_def(type, member, ptype, help) \
225 { #member, ptype, \
226 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
227 0, help }
228
229#define sample_member_def(name, member, ptype, help) \
230 { #name, ptype, \
231 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
232 0, help }
233
234struct pyrf_event {
235 PyObject_HEAD
236 struct evsel *evsel;
237 struct perf_sample sample;
238 union perf_event event;
239};
240
241#define sample_members \
242 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
243 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
244 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
245 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
246 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
247 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
248 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
249 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
250 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
251
252static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
253
254static PyMemberDef pyrf_mmap_event__members[] = {
255 sample_members
256 member_def(perf_event_header, type, T_UINT, "event type"),
257 member_def(perf_event_header, misc, T_UINT, "event misc"),
258 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
259 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
260 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
261 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
262 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
263 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
264 { .name = NULL, },
265};
266
267static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
268{
269 PyObject *ret;
270 char *s;
271
272 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
273 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
274 "filename: %s }",
275 pevent->event.mmap.pid, pevent->event.mmap.tid,
276 pevent->event.mmap.start, pevent->event.mmap.len,
277 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
278 ret = PyErr_NoMemory();
279 } else {
280 ret = _PyUnicode_FromString(s);
281 free(s);
282 }
283 return ret;
284}
285
286static PyTypeObject pyrf_mmap_event__type = {
287 PyVarObject_HEAD_INIT(NULL, 0)
288 .tp_name = "perf.mmap_event",
289 .tp_basicsize = sizeof(struct pyrf_event),
290 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
291 .tp_doc = pyrf_mmap_event__doc,
292 .tp_members = pyrf_mmap_event__members,
293 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
294};
295
296static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
297
298static PyMemberDef pyrf_task_event__members[] = {
299 sample_members
300 member_def(perf_event_header, type, T_UINT, "event type"),
301 member_def(perf_record_fork, pid, T_UINT, "event pid"),
302 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
303 member_def(perf_record_fork, tid, T_UINT, "event tid"),
304 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
305 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
306 { .name = NULL, },
307};
308
309static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
310{
311 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
312 "ptid: %u, time: %" PRI_lu64 "}",
313 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
314 pevent->event.fork.pid,
315 pevent->event.fork.ppid,
316 pevent->event.fork.tid,
317 pevent->event.fork.ptid,
318 pevent->event.fork.time);
319}
320
321static PyTypeObject pyrf_task_event__type = {
322 PyVarObject_HEAD_INIT(NULL, 0)
323 .tp_name = "perf.task_event",
324 .tp_basicsize = sizeof(struct pyrf_event),
325 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
326 .tp_doc = pyrf_task_event__doc,
327 .tp_members = pyrf_task_event__members,
328 .tp_repr = (reprfunc)pyrf_task_event__repr,
329};
330
331static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
332
333static PyMemberDef pyrf_comm_event__members[] = {
334 sample_members
335 member_def(perf_event_header, type, T_UINT, "event type"),
336 member_def(perf_record_comm, pid, T_UINT, "event pid"),
337 member_def(perf_record_comm, tid, T_UINT, "event tid"),
338 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
339 { .name = NULL, },
340};
341
342static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
343{
344 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
345 pevent->event.comm.pid,
346 pevent->event.comm.tid,
347 pevent->event.comm.comm);
348}
349
350static PyTypeObject pyrf_comm_event__type = {
351 PyVarObject_HEAD_INIT(NULL, 0)
352 .tp_name = "perf.comm_event",
353 .tp_basicsize = sizeof(struct pyrf_event),
354 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
355 .tp_doc = pyrf_comm_event__doc,
356 .tp_members = pyrf_comm_event__members,
357 .tp_repr = (reprfunc)pyrf_comm_event__repr,
358};
359
360static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
361
362static PyMemberDef pyrf_throttle_event__members[] = {
363 sample_members
364 member_def(perf_event_header, type, T_UINT, "event type"),
365 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
366 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
367 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
368 { .name = NULL, },
369};
370
371static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
372{
373 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
374
375 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
376 ", stream_id: %" PRI_lu64 " }",
377 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
378 te->time, te->id, te->stream_id);
379}
380
381static PyTypeObject pyrf_throttle_event__type = {
382 PyVarObject_HEAD_INIT(NULL, 0)
383 .tp_name = "perf.throttle_event",
384 .tp_basicsize = sizeof(struct pyrf_event),
385 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
386 .tp_doc = pyrf_throttle_event__doc,
387 .tp_members = pyrf_throttle_event__members,
388 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
389};
390
391static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
392
393static PyMemberDef pyrf_lost_event__members[] = {
394 sample_members
395 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
396 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
397 { .name = NULL, },
398};
399
400static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
401{
402 PyObject *ret;
403 char *s;
404
405 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
406 "lost: %#" PRI_lx64 " }",
407 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
408 ret = PyErr_NoMemory();
409 } else {
410 ret = _PyUnicode_FromString(s);
411 free(s);
412 }
413 return ret;
414}
415
416static PyTypeObject pyrf_lost_event__type = {
417 PyVarObject_HEAD_INIT(NULL, 0)
418 .tp_name = "perf.lost_event",
419 .tp_basicsize = sizeof(struct pyrf_event),
420 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
421 .tp_doc = pyrf_lost_event__doc,
422 .tp_members = pyrf_lost_event__members,
423 .tp_repr = (reprfunc)pyrf_lost_event__repr,
424};
425
426static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
427
428static PyMemberDef pyrf_read_event__members[] = {
429 sample_members
430 member_def(perf_record_read, pid, T_UINT, "event pid"),
431 member_def(perf_record_read, tid, T_UINT, "event tid"),
432 { .name = NULL, },
433};
434
435static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
436{
437 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
438 pevent->event.read.pid,
439 pevent->event.read.tid);
440 /*
441 * FIXME: return the array of read values,
442 * making this method useful ;-)
443 */
444}
445
446static PyTypeObject pyrf_read_event__type = {
447 PyVarObject_HEAD_INIT(NULL, 0)
448 .tp_name = "perf.read_event",
449 .tp_basicsize = sizeof(struct pyrf_event),
450 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
451 .tp_doc = pyrf_read_event__doc,
452 .tp_members = pyrf_read_event__members,
453 .tp_repr = (reprfunc)pyrf_read_event__repr,
454};
455
456static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
457
458static PyMemberDef pyrf_sample_event__members[] = {
459 sample_members
460 member_def(perf_event_header, type, T_UINT, "event type"),
461 { .name = NULL, },
462};
463
464static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
465{
466 PyObject *ret;
467 char *s;
468
469 if (asprintf(&s, "{ type: sample }") < 0) {
470 ret = PyErr_NoMemory();
471 } else {
472 ret = _PyUnicode_FromString(s);
473 free(s);
474 }
475 return ret;
476}
477
478#ifdef HAVE_LIBTRACEEVENT
479static bool is_tracepoint(struct pyrf_event *pevent)
480{
481 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
482}
483
484static PyObject*
485tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
486{
487 struct tep_handle *pevent = field->event->tep;
488 void *data = pe->sample.raw_data;
489 PyObject *ret = NULL;
490 unsigned long long val;
491 unsigned int offset, len;
492
493 if (field->flags & TEP_FIELD_IS_ARRAY) {
494 offset = field->offset;
495 len = field->size;
496 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
497 val = tep_read_number(pevent, data + offset, len);
498 offset = val;
499 len = offset >> 16;
500 offset &= 0xffff;
501 if (tep_field_is_relative(field->flags))
502 offset += field->offset + field->size;
503 }
504 if (field->flags & TEP_FIELD_IS_STRING &&
505 is_printable_array(data + offset, len)) {
506 ret = _PyUnicode_FromString((char *)data + offset);
507 } else {
508 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
509 field->flags &= ~TEP_FIELD_IS_STRING;
510 }
511 } else {
512 val = tep_read_number(pevent, data + field->offset,
513 field->size);
514 if (field->flags & TEP_FIELD_IS_POINTER)
515 ret = PyLong_FromUnsignedLong((unsigned long) val);
516 else if (field->flags & TEP_FIELD_IS_SIGNED)
517 ret = PyLong_FromLong((long) val);
518 else
519 ret = PyLong_FromUnsignedLong((unsigned long) val);
520 }
521
522 return ret;
523}
524
525static PyObject*
526get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
527{
528 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
529 struct evsel *evsel = pevent->evsel;
530 struct tep_format_field *field;
531
532 if (!evsel->tp_format) {
533 struct tep_event *tp_format;
534
535 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
536 if (IS_ERR_OR_NULL(tp_format))
537 return NULL;
538
539 evsel->tp_format = tp_format;
540 }
541
542 field = tep_find_any_field(evsel->tp_format, str);
543 if (!field)
544 return NULL;
545
546 return tracepoint_field(pevent, field);
547}
548#endif /* HAVE_LIBTRACEEVENT */
549
550static PyObject*
551pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
552{
553 PyObject *obj = NULL;
554
555#ifdef HAVE_LIBTRACEEVENT
556 if (is_tracepoint(pevent))
557 obj = get_tracepoint_field(pevent, attr_name);
558#endif
559
560 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
561}
562
563static PyTypeObject pyrf_sample_event__type = {
564 PyVarObject_HEAD_INIT(NULL, 0)
565 .tp_name = "perf.sample_event",
566 .tp_basicsize = sizeof(struct pyrf_event),
567 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
568 .tp_doc = pyrf_sample_event__doc,
569 .tp_members = pyrf_sample_event__members,
570 .tp_repr = (reprfunc)pyrf_sample_event__repr,
571 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
572};
573
574static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
575
576static PyMemberDef pyrf_context_switch_event__members[] = {
577 sample_members
578 member_def(perf_event_header, type, T_UINT, "event type"),
579 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
580 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
581 { .name = NULL, },
582};
583
584static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
585{
586 PyObject *ret;
587 char *s;
588
589 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
590 pevent->event.context_switch.next_prev_pid,
591 pevent->event.context_switch.next_prev_tid,
592 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
593 ret = PyErr_NoMemory();
594 } else {
595 ret = _PyUnicode_FromString(s);
596 free(s);
597 }
598 return ret;
599}
600
601static PyTypeObject pyrf_context_switch_event__type = {
602 PyVarObject_HEAD_INIT(NULL, 0)
603 .tp_name = "perf.context_switch_event",
604 .tp_basicsize = sizeof(struct pyrf_event),
605 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
606 .tp_doc = pyrf_context_switch_event__doc,
607 .tp_members = pyrf_context_switch_event__members,
608 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
609};
610
611static int pyrf_event__setup_types(void)
612{
613 int err;
614 pyrf_mmap_event__type.tp_new =
615 pyrf_task_event__type.tp_new =
616 pyrf_comm_event__type.tp_new =
617 pyrf_lost_event__type.tp_new =
618 pyrf_read_event__type.tp_new =
619 pyrf_sample_event__type.tp_new =
620 pyrf_context_switch_event__type.tp_new =
621 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
622 err = PyType_Ready(&pyrf_mmap_event__type);
623 if (err < 0)
624 goto out;
625 err = PyType_Ready(&pyrf_lost_event__type);
626 if (err < 0)
627 goto out;
628 err = PyType_Ready(&pyrf_task_event__type);
629 if (err < 0)
630 goto out;
631 err = PyType_Ready(&pyrf_comm_event__type);
632 if (err < 0)
633 goto out;
634 err = PyType_Ready(&pyrf_throttle_event__type);
635 if (err < 0)
636 goto out;
637 err = PyType_Ready(&pyrf_read_event__type);
638 if (err < 0)
639 goto out;
640 err = PyType_Ready(&pyrf_sample_event__type);
641 if (err < 0)
642 goto out;
643 err = PyType_Ready(&pyrf_context_switch_event__type);
644 if (err < 0)
645 goto out;
646out:
647 return err;
648}
649
650static PyTypeObject *pyrf_event__type[] = {
651 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
652 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
653 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
654 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
655 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
656 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
657 [PERF_RECORD_FORK] = &pyrf_task_event__type,
658 [PERF_RECORD_READ] = &pyrf_read_event__type,
659 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
660 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
661 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
662};
663
664static PyObject *pyrf_event__new(union perf_event *event)
665{
666 struct pyrf_event *pevent;
667 PyTypeObject *ptype;
668
669 if ((event->header.type < PERF_RECORD_MMAP ||
670 event->header.type > PERF_RECORD_SAMPLE) &&
671 !(event->header.type == PERF_RECORD_SWITCH ||
672 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
673 return NULL;
674
675 ptype = pyrf_event__type[event->header.type];
676 pevent = PyObject_New(struct pyrf_event, ptype);
677 if (pevent != NULL)
678 memcpy(&pevent->event, event, event->header.size);
679 return (PyObject *)pevent;
680}
681
682struct pyrf_cpu_map {
683 PyObject_HEAD
684
685 struct perf_cpu_map *cpus;
686};
687
688static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
689 PyObject *args, PyObject *kwargs)
690{
691 static char *kwlist[] = { "cpustr", NULL };
692 char *cpustr = NULL;
693
694 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
695 kwlist, &cpustr))
696 return -1;
697
698 pcpus->cpus = perf_cpu_map__new(cpustr);
699 if (pcpus->cpus == NULL)
700 return -1;
701 return 0;
702}
703
704static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
705{
706 perf_cpu_map__put(pcpus->cpus);
707 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
708}
709
710static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
711{
712 struct pyrf_cpu_map *pcpus = (void *)obj;
713
714 return perf_cpu_map__nr(pcpus->cpus);
715}
716
717static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
718{
719 struct pyrf_cpu_map *pcpus = (void *)obj;
720
721 if (i >= perf_cpu_map__nr(pcpus->cpus))
722 return NULL;
723
724 return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
725}
726
727static PySequenceMethods pyrf_cpu_map__sequence_methods = {
728 .sq_length = pyrf_cpu_map__length,
729 .sq_item = pyrf_cpu_map__item,
730};
731
732static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
733
734static PyTypeObject pyrf_cpu_map__type = {
735 PyVarObject_HEAD_INIT(NULL, 0)
736 .tp_name = "perf.cpu_map",
737 .tp_basicsize = sizeof(struct pyrf_cpu_map),
738 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
739 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
740 .tp_doc = pyrf_cpu_map__doc,
741 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
742 .tp_init = (initproc)pyrf_cpu_map__init,
743};
744
745static int pyrf_cpu_map__setup_types(void)
746{
747 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
748 return PyType_Ready(&pyrf_cpu_map__type);
749}
750
751struct pyrf_thread_map {
752 PyObject_HEAD
753
754 struct perf_thread_map *threads;
755};
756
757static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
758 PyObject *args, PyObject *kwargs)
759{
760 static char *kwlist[] = { "pid", "tid", "uid", NULL };
761 int pid = -1, tid = -1, uid = UINT_MAX;
762
763 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
764 kwlist, &pid, &tid, &uid))
765 return -1;
766
767 pthreads->threads = thread_map__new(pid, tid, uid);
768 if (pthreads->threads == NULL)
769 return -1;
770 return 0;
771}
772
773static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
774{
775 perf_thread_map__put(pthreads->threads);
776 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
777}
778
779static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
780{
781 struct pyrf_thread_map *pthreads = (void *)obj;
782
783 return perf_thread_map__nr(pthreads->threads);
784}
785
786static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
787{
788 struct pyrf_thread_map *pthreads = (void *)obj;
789
790 if (i >= perf_thread_map__nr(pthreads->threads))
791 return NULL;
792
793 return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
794}
795
796static PySequenceMethods pyrf_thread_map__sequence_methods = {
797 .sq_length = pyrf_thread_map__length,
798 .sq_item = pyrf_thread_map__item,
799};
800
801static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
802
803static PyTypeObject pyrf_thread_map__type = {
804 PyVarObject_HEAD_INIT(NULL, 0)
805 .tp_name = "perf.thread_map",
806 .tp_basicsize = sizeof(struct pyrf_thread_map),
807 .tp_dealloc = (destructor)pyrf_thread_map__delete,
808 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
809 .tp_doc = pyrf_thread_map__doc,
810 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
811 .tp_init = (initproc)pyrf_thread_map__init,
812};
813
814static int pyrf_thread_map__setup_types(void)
815{
816 pyrf_thread_map__type.tp_new = PyType_GenericNew;
817 return PyType_Ready(&pyrf_thread_map__type);
818}
819
820struct pyrf_evsel {
821 PyObject_HEAD
822
823 struct evsel evsel;
824};
825
826static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
827 PyObject *args, PyObject *kwargs)
828{
829 struct perf_event_attr attr = {
830 .type = PERF_TYPE_HARDWARE,
831 .config = PERF_COUNT_HW_CPU_CYCLES,
832 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
833 };
834 static char *kwlist[] = {
835 "type",
836 "config",
837 "sample_freq",
838 "sample_period",
839 "sample_type",
840 "read_format",
841 "disabled",
842 "inherit",
843 "pinned",
844 "exclusive",
845 "exclude_user",
846 "exclude_kernel",
847 "exclude_hv",
848 "exclude_idle",
849 "mmap",
850 "context_switch",
851 "comm",
852 "freq",
853 "inherit_stat",
854 "enable_on_exec",
855 "task",
856 "watermark",
857 "precise_ip",
858 "mmap_data",
859 "sample_id_all",
860 "wakeup_events",
861 "bp_type",
862 "bp_addr",
863 "bp_len",
864 NULL
865 };
866 u64 sample_period = 0;
867 u32 disabled = 0,
868 inherit = 0,
869 pinned = 0,
870 exclusive = 0,
871 exclude_user = 0,
872 exclude_kernel = 0,
873 exclude_hv = 0,
874 exclude_idle = 0,
875 mmap = 0,
876 context_switch = 0,
877 comm = 0,
878 freq = 1,
879 inherit_stat = 0,
880 enable_on_exec = 0,
881 task = 0,
882 watermark = 0,
883 precise_ip = 0,
884 mmap_data = 0,
885 sample_id_all = 1;
886 int idx = 0;
887
888 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
889 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
890 &attr.type, &attr.config, &attr.sample_freq,
891 &sample_period, &attr.sample_type,
892 &attr.read_format, &disabled, &inherit,
893 &pinned, &exclusive, &exclude_user,
894 &exclude_kernel, &exclude_hv, &exclude_idle,
895 &mmap, &context_switch, &comm, &freq, &inherit_stat,
896 &enable_on_exec, &task, &watermark,
897 &precise_ip, &mmap_data, &sample_id_all,
898 &attr.wakeup_events, &attr.bp_type,
899 &attr.bp_addr, &attr.bp_len, &idx))
900 return -1;
901
902 /* union... */
903 if (sample_period != 0) {
904 if (attr.sample_freq != 0)
905 return -1; /* FIXME: throw right exception */
906 attr.sample_period = sample_period;
907 }
908
909 /* Bitfields */
910 attr.disabled = disabled;
911 attr.inherit = inherit;
912 attr.pinned = pinned;
913 attr.exclusive = exclusive;
914 attr.exclude_user = exclude_user;
915 attr.exclude_kernel = exclude_kernel;
916 attr.exclude_hv = exclude_hv;
917 attr.exclude_idle = exclude_idle;
918 attr.mmap = mmap;
919 attr.context_switch = context_switch;
920 attr.comm = comm;
921 attr.freq = freq;
922 attr.inherit_stat = inherit_stat;
923 attr.enable_on_exec = enable_on_exec;
924 attr.task = task;
925 attr.watermark = watermark;
926 attr.precise_ip = precise_ip;
927 attr.mmap_data = mmap_data;
928 attr.sample_id_all = sample_id_all;
929 attr.size = sizeof(attr);
930
931 evsel__init(&pevsel->evsel, &attr, idx);
932 return 0;
933}
934
935static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
936{
937 evsel__exit(&pevsel->evsel);
938 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
939}
940
941static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
942 PyObject *args, PyObject *kwargs)
943{
944 struct evsel *evsel = &pevsel->evsel;
945 struct perf_cpu_map *cpus = NULL;
946 struct perf_thread_map *threads = NULL;
947 PyObject *pcpus = NULL, *pthreads = NULL;
948 int group = 0, inherit = 0;
949 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
950
951 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
952 &pcpus, &pthreads, &group, &inherit))
953 return NULL;
954
955 if (pthreads != NULL)
956 threads = ((struct pyrf_thread_map *)pthreads)->threads;
957
958 if (pcpus != NULL)
959 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
960
961 evsel->core.attr.inherit = inherit;
962 /*
963 * This will group just the fds for this single evsel, to group
964 * multiple events, use evlist.open().
965 */
966 if (evsel__open(evsel, cpus, threads) < 0) {
967 PyErr_SetFromErrno(PyExc_OSError);
968 return NULL;
969 }
970
971 Py_INCREF(Py_None);
972 return Py_None;
973}
974
975static PyMethodDef pyrf_evsel__methods[] = {
976 {
977 .ml_name = "open",
978 .ml_meth = (PyCFunction)pyrf_evsel__open,
979 .ml_flags = METH_VARARGS | METH_KEYWORDS,
980 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
981 },
982 { .ml_name = NULL, }
983};
984
985static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
986
987static PyTypeObject pyrf_evsel__type = {
988 PyVarObject_HEAD_INIT(NULL, 0)
989 .tp_name = "perf.evsel",
990 .tp_basicsize = sizeof(struct pyrf_evsel),
991 .tp_dealloc = (destructor)pyrf_evsel__delete,
992 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
993 .tp_doc = pyrf_evsel__doc,
994 .tp_methods = pyrf_evsel__methods,
995 .tp_init = (initproc)pyrf_evsel__init,
996};
997
998static int pyrf_evsel__setup_types(void)
999{
1000 pyrf_evsel__type.tp_new = PyType_GenericNew;
1001 return PyType_Ready(&pyrf_evsel__type);
1002}
1003
1004struct pyrf_evlist {
1005 PyObject_HEAD
1006
1007 struct evlist evlist;
1008};
1009
1010static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
1011 PyObject *args, PyObject *kwargs __maybe_unused)
1012{
1013 PyObject *pcpus = NULL, *pthreads = NULL;
1014 struct perf_cpu_map *cpus;
1015 struct perf_thread_map *threads;
1016
1017 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
1018 return -1;
1019
1020 threads = ((struct pyrf_thread_map *)pthreads)->threads;
1021 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
1022 evlist__init(&pevlist->evlist, cpus, threads);
1023 return 0;
1024}
1025
1026static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
1027{
1028 evlist__exit(&pevlist->evlist);
1029 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
1030}
1031
1032static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
1033 PyObject *args, PyObject *kwargs)
1034{
1035 struct evlist *evlist = &pevlist->evlist;
1036 static char *kwlist[] = { "pages", "overwrite", NULL };
1037 int pages = 128, overwrite = false;
1038
1039 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
1040 &pages, &overwrite))
1041 return NULL;
1042
1043 if (evlist__mmap(evlist, pages) < 0) {
1044 PyErr_SetFromErrno(PyExc_OSError);
1045 return NULL;
1046 }
1047
1048 Py_INCREF(Py_None);
1049 return Py_None;
1050}
1051
1052static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
1053 PyObject *args, PyObject *kwargs)
1054{
1055 struct evlist *evlist = &pevlist->evlist;
1056 static char *kwlist[] = { "timeout", NULL };
1057 int timeout = -1, n;
1058
1059 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
1060 return NULL;
1061
1062 n = evlist__poll(evlist, timeout);
1063 if (n < 0) {
1064 PyErr_SetFromErrno(PyExc_OSError);
1065 return NULL;
1066 }
1067
1068 return Py_BuildValue("i", n);
1069}
1070
1071static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
1072 PyObject *args __maybe_unused,
1073 PyObject *kwargs __maybe_unused)
1074{
1075 struct evlist *evlist = &pevlist->evlist;
1076 PyObject *list = PyList_New(0);
1077 int i;
1078
1079 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
1080 PyObject *file;
1081#if PY_MAJOR_VERSION < 3
1082 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
1083
1084 if (fp == NULL)
1085 goto free_list;
1086
1087 file = PyFile_FromFile(fp, "perf", "r", NULL);
1088#else
1089 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
1090 NULL, NULL, NULL, 0);
1091#endif
1092 if (file == NULL)
1093 goto free_list;
1094
1095 if (PyList_Append(list, file) != 0) {
1096 Py_DECREF(file);
1097 goto free_list;
1098 }
1099
1100 Py_DECREF(file);
1101 }
1102
1103 return list;
1104free_list:
1105 return PyErr_NoMemory();
1106}
1107
1108
1109static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
1110 PyObject *args,
1111 PyObject *kwargs __maybe_unused)
1112{
1113 struct evlist *evlist = &pevlist->evlist;
1114 PyObject *pevsel;
1115 struct evsel *evsel;
1116
1117 if (!PyArg_ParseTuple(args, "O", &pevsel))
1118 return NULL;
1119
1120 Py_INCREF(pevsel);
1121 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
1122 evsel->core.idx = evlist->core.nr_entries;
1123 evlist__add(evlist, evsel);
1124
1125 return Py_BuildValue("i", evlist->core.nr_entries);
1126}
1127
1128static struct mmap *get_md(struct evlist *evlist, int cpu)
1129{
1130 int i;
1131
1132 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1133 struct mmap *md = &evlist->mmap[i];
1134
1135 if (md->core.cpu.cpu == cpu)
1136 return md;
1137 }
1138
1139 return NULL;
1140}
1141
1142static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1143 PyObject *args, PyObject *kwargs)
1144{
1145 struct evlist *evlist = &pevlist->evlist;
1146 union perf_event *event;
1147 int sample_id_all = 1, cpu;
1148 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1149 struct mmap *md;
1150 int err;
1151
1152 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1153 &cpu, &sample_id_all))
1154 return NULL;
1155
1156 md = get_md(evlist, cpu);
1157 if (!md)
1158 return NULL;
1159
1160 if (perf_mmap__read_init(&md->core) < 0)
1161 goto end;
1162
1163 event = perf_mmap__read_event(&md->core);
1164 if (event != NULL) {
1165 PyObject *pyevent = pyrf_event__new(event);
1166 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1167 struct evsel *evsel;
1168
1169 if (pyevent == NULL)
1170 return PyErr_NoMemory();
1171
1172 evsel = evlist__event2evsel(evlist, event);
1173 if (!evsel) {
1174 Py_INCREF(Py_None);
1175 return Py_None;
1176 }
1177
1178 pevent->evsel = evsel;
1179
1180 err = evsel__parse_sample(evsel, event, &pevent->sample);
1181
1182 /* Consume the even only after we parsed it out. */
1183 perf_mmap__consume(&md->core);
1184
1185 if (err)
1186 return PyErr_Format(PyExc_OSError,
1187 "perf: can't parse sample, err=%d", err);
1188 return pyevent;
1189 }
1190end:
1191 Py_INCREF(Py_None);
1192 return Py_None;
1193}
1194
1195static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1196 PyObject *args, PyObject *kwargs)
1197{
1198 struct evlist *evlist = &pevlist->evlist;
1199
1200 if (evlist__open(evlist) < 0) {
1201 PyErr_SetFromErrno(PyExc_OSError);
1202 return NULL;
1203 }
1204
1205 Py_INCREF(Py_None);
1206 return Py_None;
1207}
1208
1209static PyMethodDef pyrf_evlist__methods[] = {
1210 {
1211 .ml_name = "mmap",
1212 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1213 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1214 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1215 },
1216 {
1217 .ml_name = "open",
1218 .ml_meth = (PyCFunction)pyrf_evlist__open,
1219 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1220 .ml_doc = PyDoc_STR("open the file descriptors.")
1221 },
1222 {
1223 .ml_name = "poll",
1224 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1225 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1226 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1227 },
1228 {
1229 .ml_name = "get_pollfd",
1230 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1231 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1232 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1233 },
1234 {
1235 .ml_name = "add",
1236 .ml_meth = (PyCFunction)pyrf_evlist__add,
1237 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1238 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1239 },
1240 {
1241 .ml_name = "read_on_cpu",
1242 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1243 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1244 .ml_doc = PyDoc_STR("reads an event.")
1245 },
1246 { .ml_name = NULL, }
1247};
1248
1249static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1250{
1251 struct pyrf_evlist *pevlist = (void *)obj;
1252
1253 return pevlist->evlist.core.nr_entries;
1254}
1255
1256static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1257{
1258 struct pyrf_evlist *pevlist = (void *)obj;
1259 struct evsel *pos;
1260
1261 if (i >= pevlist->evlist.core.nr_entries)
1262 return NULL;
1263
1264 evlist__for_each_entry(&pevlist->evlist, pos) {
1265 if (i-- == 0)
1266 break;
1267 }
1268
1269 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1270}
1271
1272static PySequenceMethods pyrf_evlist__sequence_methods = {
1273 .sq_length = pyrf_evlist__length,
1274 .sq_item = pyrf_evlist__item,
1275};
1276
1277static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1278
1279static PyTypeObject pyrf_evlist__type = {
1280 PyVarObject_HEAD_INIT(NULL, 0)
1281 .tp_name = "perf.evlist",
1282 .tp_basicsize = sizeof(struct pyrf_evlist),
1283 .tp_dealloc = (destructor)pyrf_evlist__delete,
1284 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1285 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1286 .tp_doc = pyrf_evlist__doc,
1287 .tp_methods = pyrf_evlist__methods,
1288 .tp_init = (initproc)pyrf_evlist__init,
1289};
1290
1291static int pyrf_evlist__setup_types(void)
1292{
1293 pyrf_evlist__type.tp_new = PyType_GenericNew;
1294 return PyType_Ready(&pyrf_evlist__type);
1295}
1296
1297#define PERF_CONST(name) { #name, PERF_##name }
1298
1299static struct {
1300 const char *name;
1301 int value;
1302} perf__constants[] = {
1303 PERF_CONST(TYPE_HARDWARE),
1304 PERF_CONST(TYPE_SOFTWARE),
1305 PERF_CONST(TYPE_TRACEPOINT),
1306 PERF_CONST(TYPE_HW_CACHE),
1307 PERF_CONST(TYPE_RAW),
1308 PERF_CONST(TYPE_BREAKPOINT),
1309
1310 PERF_CONST(COUNT_HW_CPU_CYCLES),
1311 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1312 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1313 PERF_CONST(COUNT_HW_CACHE_MISSES),
1314 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1315 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1316 PERF_CONST(COUNT_HW_BUS_CYCLES),
1317 PERF_CONST(COUNT_HW_CACHE_L1D),
1318 PERF_CONST(COUNT_HW_CACHE_L1I),
1319 PERF_CONST(COUNT_HW_CACHE_LL),
1320 PERF_CONST(COUNT_HW_CACHE_DTLB),
1321 PERF_CONST(COUNT_HW_CACHE_ITLB),
1322 PERF_CONST(COUNT_HW_CACHE_BPU),
1323 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1324 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1325 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1326 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1327 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1328
1329 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1330 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1331
1332 PERF_CONST(COUNT_SW_CPU_CLOCK),
1333 PERF_CONST(COUNT_SW_TASK_CLOCK),
1334 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1335 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1336 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1337 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1338 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1339 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1340 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1341 PERF_CONST(COUNT_SW_DUMMY),
1342
1343 PERF_CONST(SAMPLE_IP),
1344 PERF_CONST(SAMPLE_TID),
1345 PERF_CONST(SAMPLE_TIME),
1346 PERF_CONST(SAMPLE_ADDR),
1347 PERF_CONST(SAMPLE_READ),
1348 PERF_CONST(SAMPLE_CALLCHAIN),
1349 PERF_CONST(SAMPLE_ID),
1350 PERF_CONST(SAMPLE_CPU),
1351 PERF_CONST(SAMPLE_PERIOD),
1352 PERF_CONST(SAMPLE_STREAM_ID),
1353 PERF_CONST(SAMPLE_RAW),
1354
1355 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1356 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1357 PERF_CONST(FORMAT_ID),
1358 PERF_CONST(FORMAT_GROUP),
1359
1360 PERF_CONST(RECORD_MMAP),
1361 PERF_CONST(RECORD_LOST),
1362 PERF_CONST(RECORD_COMM),
1363 PERF_CONST(RECORD_EXIT),
1364 PERF_CONST(RECORD_THROTTLE),
1365 PERF_CONST(RECORD_UNTHROTTLE),
1366 PERF_CONST(RECORD_FORK),
1367 PERF_CONST(RECORD_READ),
1368 PERF_CONST(RECORD_SAMPLE),
1369 PERF_CONST(RECORD_MMAP2),
1370 PERF_CONST(RECORD_AUX),
1371 PERF_CONST(RECORD_ITRACE_START),
1372 PERF_CONST(RECORD_LOST_SAMPLES),
1373 PERF_CONST(RECORD_SWITCH),
1374 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1375
1376 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1377 { .name = NULL, },
1378};
1379
1380static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1381 PyObject *args, PyObject *kwargs)
1382{
1383#ifndef HAVE_LIBTRACEEVENT
1384 return NULL;
1385#else
1386 struct tep_event *tp_format;
1387 static char *kwlist[] = { "sys", "name", NULL };
1388 char *sys = NULL;
1389 char *name = NULL;
1390
1391 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1392 &sys, &name))
1393 return NULL;
1394
1395 tp_format = trace_event__tp_format(sys, name);
1396 if (IS_ERR(tp_format))
1397 return _PyLong_FromLong(-1);
1398
1399 return _PyLong_FromLong(tp_format->id);
1400#endif // HAVE_LIBTRACEEVENT
1401}
1402
1403static PyMethodDef perf__methods[] = {
1404 {
1405 .ml_name = "tracepoint",
1406 .ml_meth = (PyCFunction) pyrf__tracepoint,
1407 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1408 .ml_doc = PyDoc_STR("Get tracepoint config.")
1409 },
1410 { .ml_name = NULL, }
1411};
1412
1413#if PY_MAJOR_VERSION < 3
1414PyMODINIT_FUNC initperf(void)
1415#else
1416PyMODINIT_FUNC PyInit_perf(void)
1417#endif
1418{
1419 PyObject *obj;
1420 int i;
1421 PyObject *dict;
1422#if PY_MAJOR_VERSION < 3
1423 PyObject *module = Py_InitModule("perf", perf__methods);
1424#else
1425 static struct PyModuleDef moduledef = {
1426 PyModuleDef_HEAD_INIT,
1427 "perf", /* m_name */
1428 "", /* m_doc */
1429 -1, /* m_size */
1430 perf__methods, /* m_methods */
1431 NULL, /* m_reload */
1432 NULL, /* m_traverse */
1433 NULL, /* m_clear */
1434 NULL, /* m_free */
1435 };
1436 PyObject *module = PyModule_Create(&moduledef);
1437#endif
1438
1439 if (module == NULL ||
1440 pyrf_event__setup_types() < 0 ||
1441 pyrf_evlist__setup_types() < 0 ||
1442 pyrf_evsel__setup_types() < 0 ||
1443 pyrf_thread_map__setup_types() < 0 ||
1444 pyrf_cpu_map__setup_types() < 0)
1445#if PY_MAJOR_VERSION < 3
1446 return;
1447#else
1448 return module;
1449#endif
1450
1451 /* The page_size is placed in util object. */
1452 page_size = sysconf(_SC_PAGE_SIZE);
1453
1454 Py_INCREF(&pyrf_evlist__type);
1455 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1456
1457 Py_INCREF(&pyrf_evsel__type);
1458 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1459
1460 Py_INCREF(&pyrf_mmap_event__type);
1461 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1462
1463 Py_INCREF(&pyrf_lost_event__type);
1464 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1465
1466 Py_INCREF(&pyrf_comm_event__type);
1467 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1468
1469 Py_INCREF(&pyrf_task_event__type);
1470 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1471
1472 Py_INCREF(&pyrf_throttle_event__type);
1473 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1474
1475 Py_INCREF(&pyrf_task_event__type);
1476 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1477
1478 Py_INCREF(&pyrf_read_event__type);
1479 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1480
1481 Py_INCREF(&pyrf_sample_event__type);
1482 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1483
1484 Py_INCREF(&pyrf_context_switch_event__type);
1485 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1486
1487 Py_INCREF(&pyrf_thread_map__type);
1488 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1489
1490 Py_INCREF(&pyrf_cpu_map__type);
1491 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1492
1493 dict = PyModule_GetDict(module);
1494 if (dict == NULL)
1495 goto error;
1496
1497 for (i = 0; perf__constants[i].name != NULL; i++) {
1498 obj = _PyLong_FromLong(perf__constants[i].value);
1499 if (obj == NULL)
1500 goto error;
1501 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1502 Py_DECREF(obj);
1503 }
1504
1505error:
1506 if (PyErr_Occurred())
1507 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1508#if PY_MAJOR_VERSION >= 3
1509 return module;
1510#endif
1511}
1512
1513/*
1514 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1515 * binding.
1516 */
1517void test_attr__open(struct perf_event_attr *attr, pid_t pid, struct perf_cpu cpu,
1518 int fd, int group_fd, unsigned long flags)
1519{
1520}
1521
1522void evlist__free_stats(struct evlist *evlist)
1523{
1524}