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Merge tag 'block-5.11-2021-01-10' of git://git.kernel.dk/linux-block
[linux/fpc-iii.git] / tools / perf / util / python.c
blobcc5ade85a33fc99923ed345847321117a57963a5
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 "stat.h"
19 #include "metricgroup.h"
20 #include "util/env.h"
21 #include <internal/lib.h>
22 #include "util.h"
23
24 #if PY_MAJOR_VERSION < 3
25 #define _PyUnicode_FromString(arg) \
26 PyString_FromString(arg)
27 #define _PyUnicode_AsString(arg) \
28 PyString_AsString(arg)
29 #define _PyUnicode_FromFormat(...) \
30 PyString_FromFormat(__VA_ARGS__)
31 #define _PyLong_FromLong(arg) \
32 PyInt_FromLong(arg)
33
34 #else
35
36 #define _PyUnicode_FromString(arg) \
37 PyUnicode_FromString(arg)
38 #define _PyUnicode_FromFormat(...) \
39 PyUnicode_FromFormat(__VA_ARGS__)
40 #define _PyLong_FromLong(arg) \
41 PyLong_FromLong(arg)
42 #endif
43
44 #ifndef Py_TYPE
45 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
46 #endif
47
48 /*
49 * Provide these two so that we don't have to link against callchain.c and
50 * start dragging hist.c, etc.
51 */
52 struct callchain_param callchain_param;
53
54 int parse_callchain_record(const char *arg __maybe_unused,
55 struct callchain_param *param __maybe_unused)
56 {
57 return 0;
58 }
59
60 /*
61 * Add this one here not to drag util/env.c
62 */
63 struct perf_env perf_env;
64
65 /*
66 * Add this one here not to drag util/stat-shadow.c
67 */
68 void perf_stat__collect_metric_expr(struct evlist *evsel_list)
69 {
70 }
71
72 /*
73 * Add this one here not to drag util/metricgroup.c
74 */
75 int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
76 struct rblist *new_metric_events,
77 struct rblist *old_metric_events)
78 {
79 return 0;
80 }
81
82 /*
83 * Support debug printing even though util/debug.c is not linked. That means
84 * implementing 'verbose' and 'eprintf'.
85 */
86 int verbose;
87 int debug_peo_args;
88
89 int eprintf(int level, int var, const char *fmt, ...);
90
91 int eprintf(int level, int var, const char *fmt, ...)
92 {
93 va_list args;
94 int ret = 0;
95
96 if (var >= level) {
97 va_start(args, fmt);
98 ret = vfprintf(stderr, fmt, args);
99 va_end(args);
100 }
101
102 return ret;
103 }
104
105 /* Define PyVarObject_HEAD_INIT for python 2.5 */
106 #ifndef PyVarObject_HEAD_INIT
107 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
108 #endif
109
110 #if PY_MAJOR_VERSION < 3
111 PyMODINIT_FUNC initperf(void);
112 #else
113 PyMODINIT_FUNC PyInit_perf(void);
114 #endif
115
116 #define member_def(type, member, ptype, help) \
117 { #member, ptype, \
118 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
119 0, help }
120
121 #define sample_member_def(name, member, ptype, help) \
122 { #name, ptype, \
123 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
124 0, help }
125
126 struct pyrf_event {
127 PyObject_HEAD
128 struct evsel *evsel;
129 struct perf_sample sample;
130 union perf_event event;
131 };
132
133 #define sample_members \
134 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
135 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
136 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
137 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
138 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
139 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
140 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
141 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
142 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
143
144 static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
145
146 static PyMemberDef pyrf_mmap_event__members[] = {
147 sample_members
148 member_def(perf_event_header, type, T_UINT, "event type"),
149 member_def(perf_event_header, misc, T_UINT, "event misc"),
150 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
151 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
152 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
153 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
154 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
155 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
156 { .name = NULL, },
157 };
158
159 static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
160 {
161 PyObject *ret;
162 char *s;
163
164 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
165 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
166 "filename: %s }",
167 pevent->event.mmap.pid, pevent->event.mmap.tid,
168 pevent->event.mmap.start, pevent->event.mmap.len,
169 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
170 ret = PyErr_NoMemory();
171 } else {
172 ret = _PyUnicode_FromString(s);
173 free(s);
174 }
175 return ret;
176 }
177
178 static PyTypeObject pyrf_mmap_event__type = {
179 PyVarObject_HEAD_INIT(NULL, 0)
180 .tp_name = "perf.mmap_event",
181 .tp_basicsize = sizeof(struct pyrf_event),
182 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
183 .tp_doc = pyrf_mmap_event__doc,
184 .tp_members = pyrf_mmap_event__members,
185 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
186 };
187
188 static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
189
190 static PyMemberDef pyrf_task_event__members[] = {
191 sample_members
192 member_def(perf_event_header, type, T_UINT, "event type"),
193 member_def(perf_record_fork, pid, T_UINT, "event pid"),
194 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
195 member_def(perf_record_fork, tid, T_UINT, "event tid"),
196 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
197 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
198 { .name = NULL, },
199 };
200
201 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
202 {
203 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
204 "ptid: %u, time: %" PRI_lu64 "}",
205 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
206 pevent->event.fork.pid,
207 pevent->event.fork.ppid,
208 pevent->event.fork.tid,
209 pevent->event.fork.ptid,
210 pevent->event.fork.time);
211 }
212
213 static PyTypeObject pyrf_task_event__type = {
214 PyVarObject_HEAD_INIT(NULL, 0)
215 .tp_name = "perf.task_event",
216 .tp_basicsize = sizeof(struct pyrf_event),
217 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
218 .tp_doc = pyrf_task_event__doc,
219 .tp_members = pyrf_task_event__members,
220 .tp_repr = (reprfunc)pyrf_task_event__repr,
221 };
222
223 static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
224
225 static PyMemberDef pyrf_comm_event__members[] = {
226 sample_members
227 member_def(perf_event_header, type, T_UINT, "event type"),
228 member_def(perf_record_comm, pid, T_UINT, "event pid"),
229 member_def(perf_record_comm, tid, T_UINT, "event tid"),
230 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
231 { .name = NULL, },
232 };
233
234 static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
235 {
236 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
237 pevent->event.comm.pid,
238 pevent->event.comm.tid,
239 pevent->event.comm.comm);
240 }
241
242 static PyTypeObject pyrf_comm_event__type = {
243 PyVarObject_HEAD_INIT(NULL, 0)
244 .tp_name = "perf.comm_event",
245 .tp_basicsize = sizeof(struct pyrf_event),
246 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
247 .tp_doc = pyrf_comm_event__doc,
248 .tp_members = pyrf_comm_event__members,
249 .tp_repr = (reprfunc)pyrf_comm_event__repr,
250 };
251
252 static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
253
254 static PyMemberDef pyrf_throttle_event__members[] = {
255 sample_members
256 member_def(perf_event_header, type, T_UINT, "event type"),
257 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
258 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
259 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
260 { .name = NULL, },
261 };
262
263 static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
264 {
265 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
266
267 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
268 ", stream_id: %" PRI_lu64 " }",
269 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
270 te->time, te->id, te->stream_id);
271 }
272
273 static PyTypeObject pyrf_throttle_event__type = {
274 PyVarObject_HEAD_INIT(NULL, 0)
275 .tp_name = "perf.throttle_event",
276 .tp_basicsize = sizeof(struct pyrf_event),
277 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
278 .tp_doc = pyrf_throttle_event__doc,
279 .tp_members = pyrf_throttle_event__members,
280 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
281 };
282
283 static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
284
285 static PyMemberDef pyrf_lost_event__members[] = {
286 sample_members
287 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
288 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
289 { .name = NULL, },
290 };
291
292 static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
293 {
294 PyObject *ret;
295 char *s;
296
297 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
298 "lost: %#" PRI_lx64 " }",
299 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
300 ret = PyErr_NoMemory();
301 } else {
302 ret = _PyUnicode_FromString(s);
303 free(s);
304 }
305 return ret;
306 }
307
308 static PyTypeObject pyrf_lost_event__type = {
309 PyVarObject_HEAD_INIT(NULL, 0)
310 .tp_name = "perf.lost_event",
311 .tp_basicsize = sizeof(struct pyrf_event),
312 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
313 .tp_doc = pyrf_lost_event__doc,
314 .tp_members = pyrf_lost_event__members,
315 .tp_repr = (reprfunc)pyrf_lost_event__repr,
316 };
317
318 static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
319
320 static PyMemberDef pyrf_read_event__members[] = {
321 sample_members
322 member_def(perf_record_read, pid, T_UINT, "event pid"),
323 member_def(perf_record_read, tid, T_UINT, "event tid"),
324 { .name = NULL, },
325 };
326
327 static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
328 {
329 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
330 pevent->event.read.pid,
331 pevent->event.read.tid);
332 /*
333 * FIXME: return the array of read values,
334 * making this method useful ;-)
335 */
336 }
337
338 static PyTypeObject pyrf_read_event__type = {
339 PyVarObject_HEAD_INIT(NULL, 0)
340 .tp_name = "perf.read_event",
341 .tp_basicsize = sizeof(struct pyrf_event),
342 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
343 .tp_doc = pyrf_read_event__doc,
344 .tp_members = pyrf_read_event__members,
345 .tp_repr = (reprfunc)pyrf_read_event__repr,
346 };
347
348 static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
349
350 static PyMemberDef pyrf_sample_event__members[] = {
351 sample_members
352 member_def(perf_event_header, type, T_UINT, "event type"),
353 { .name = NULL, },
354 };
355
356 static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
357 {
358 PyObject *ret;
359 char *s;
360
361 if (asprintf(&s, "{ type: sample }") < 0) {
362 ret = PyErr_NoMemory();
363 } else {
364 ret = _PyUnicode_FromString(s);
365 free(s);
366 }
367 return ret;
368 }
369
370 static bool is_tracepoint(struct pyrf_event *pevent)
371 {
372 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
373 }
374
375 static PyObject*
376 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
377 {
378 struct tep_handle *pevent = field->event->tep;
379 void *data = pe->sample.raw_data;
380 PyObject *ret = NULL;
381 unsigned long long val;
382 unsigned int offset, len;
383
384 if (field->flags & TEP_FIELD_IS_ARRAY) {
385 offset = field->offset;
386 len = field->size;
387 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
388 val = tep_read_number(pevent, data + offset, len);
389 offset = val;
390 len = offset >> 16;
391 offset &= 0xffff;
392 }
393 if (field->flags & TEP_FIELD_IS_STRING &&
394 is_printable_array(data + offset, len)) {
395 ret = _PyUnicode_FromString((char *)data + offset);
396 } else {
397 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
398 field->flags &= ~TEP_FIELD_IS_STRING;
399 }
400 } else {
401 val = tep_read_number(pevent, data + field->offset,
402 field->size);
403 if (field->flags & TEP_FIELD_IS_POINTER)
404 ret = PyLong_FromUnsignedLong((unsigned long) val);
405 else if (field->flags & TEP_FIELD_IS_SIGNED)
406 ret = PyLong_FromLong((long) val);
407 else
408 ret = PyLong_FromUnsignedLong((unsigned long) val);
409 }
410
411 return ret;
412 }
413
414 static PyObject*
415 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
416 {
417 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
418 struct evsel *evsel = pevent->evsel;
419 struct tep_format_field *field;
420
421 if (!evsel->tp_format) {
422 struct tep_event *tp_format;
423
424 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
425 if (!tp_format)
426 return NULL;
427
428 evsel->tp_format = tp_format;
429 }
430
431 field = tep_find_any_field(evsel->tp_format, str);
432 if (!field)
433 return NULL;
434
435 return tracepoint_field(pevent, field);
436 }
437
438 static PyObject*
439 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
440 {
441 PyObject *obj = NULL;
442
443 if (is_tracepoint(pevent))
444 obj = get_tracepoint_field(pevent, attr_name);
445
446 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
447 }
448
449 static PyTypeObject pyrf_sample_event__type = {
450 PyVarObject_HEAD_INIT(NULL, 0)
451 .tp_name = "perf.sample_event",
452 .tp_basicsize = sizeof(struct pyrf_event),
453 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
454 .tp_doc = pyrf_sample_event__doc,
455 .tp_members = pyrf_sample_event__members,
456 .tp_repr = (reprfunc)pyrf_sample_event__repr,
457 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
458 };
459
460 static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
461
462 static PyMemberDef pyrf_context_switch_event__members[] = {
463 sample_members
464 member_def(perf_event_header, type, T_UINT, "event type"),
465 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
466 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
467 { .name = NULL, },
468 };
469
470 static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
471 {
472 PyObject *ret;
473 char *s;
474
475 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
476 pevent->event.context_switch.next_prev_pid,
477 pevent->event.context_switch.next_prev_tid,
478 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
479 ret = PyErr_NoMemory();
480 } else {
481 ret = _PyUnicode_FromString(s);
482 free(s);
483 }
484 return ret;
485 }
486
487 static PyTypeObject pyrf_context_switch_event__type = {
488 PyVarObject_HEAD_INIT(NULL, 0)
489 .tp_name = "perf.context_switch_event",
490 .tp_basicsize = sizeof(struct pyrf_event),
491 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
492 .tp_doc = pyrf_context_switch_event__doc,
493 .tp_members = pyrf_context_switch_event__members,
494 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
495 };
496
497 static int pyrf_event__setup_types(void)
498 {
499 int err;
500 pyrf_mmap_event__type.tp_new =
501 pyrf_task_event__type.tp_new =
502 pyrf_comm_event__type.tp_new =
503 pyrf_lost_event__type.tp_new =
504 pyrf_read_event__type.tp_new =
505 pyrf_sample_event__type.tp_new =
506 pyrf_context_switch_event__type.tp_new =
507 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
508 err = PyType_Ready(&pyrf_mmap_event__type);
509 if (err < 0)
510 goto out;
511 err = PyType_Ready(&pyrf_lost_event__type);
512 if (err < 0)
513 goto out;
514 err = PyType_Ready(&pyrf_task_event__type);
515 if (err < 0)
516 goto out;
517 err = PyType_Ready(&pyrf_comm_event__type);
518 if (err < 0)
519 goto out;
520 err = PyType_Ready(&pyrf_throttle_event__type);
521 if (err < 0)
522 goto out;
523 err = PyType_Ready(&pyrf_read_event__type);
524 if (err < 0)
525 goto out;
526 err = PyType_Ready(&pyrf_sample_event__type);
527 if (err < 0)
528 goto out;
529 err = PyType_Ready(&pyrf_context_switch_event__type);
530 if (err < 0)
531 goto out;
532 out:
533 return err;
534 }
535
536 static PyTypeObject *pyrf_event__type[] = {
537 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
538 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
539 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
540 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
541 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
542 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
543 [PERF_RECORD_FORK] = &pyrf_task_event__type,
544 [PERF_RECORD_READ] = &pyrf_read_event__type,
545 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
546 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
547 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
548 };
549
550 static PyObject *pyrf_event__new(union perf_event *event)
551 {
552 struct pyrf_event *pevent;
553 PyTypeObject *ptype;
554
555 if ((event->header.type < PERF_RECORD_MMAP ||
556 event->header.type > PERF_RECORD_SAMPLE) &&
557 !(event->header.type == PERF_RECORD_SWITCH ||
558 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
559 return NULL;
560
561 ptype = pyrf_event__type[event->header.type];
562 pevent = PyObject_New(struct pyrf_event, ptype);
563 if (pevent != NULL)
564 memcpy(&pevent->event, event, event->header.size);
565 return (PyObject *)pevent;
566 }
567
568 struct pyrf_cpu_map {
569 PyObject_HEAD
570
571 struct perf_cpu_map *cpus;
572 };
573
574 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
575 PyObject *args, PyObject *kwargs)
576 {
577 static char *kwlist[] = { "cpustr", NULL };
578 char *cpustr = NULL;
579
580 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
581 kwlist, &cpustr))
582 return -1;
583
584 pcpus->cpus = perf_cpu_map__new(cpustr);
585 if (pcpus->cpus == NULL)
586 return -1;
587 return 0;
588 }
589
590 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
591 {
592 perf_cpu_map__put(pcpus->cpus);
593 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
594 }
595
596 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
597 {
598 struct pyrf_cpu_map *pcpus = (void *)obj;
599
600 return pcpus->cpus->nr;
601 }
602
603 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
604 {
605 struct pyrf_cpu_map *pcpus = (void *)obj;
606
607 if (i >= pcpus->cpus->nr)
608 return NULL;
609
610 return Py_BuildValue("i", pcpus->cpus->map[i]);
611 }
612
613 static PySequenceMethods pyrf_cpu_map__sequence_methods = {
614 .sq_length = pyrf_cpu_map__length,
615 .sq_item = pyrf_cpu_map__item,
616 };
617
618 static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
619
620 static PyTypeObject pyrf_cpu_map__type = {
621 PyVarObject_HEAD_INIT(NULL, 0)
622 .tp_name = "perf.cpu_map",
623 .tp_basicsize = sizeof(struct pyrf_cpu_map),
624 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
625 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
626 .tp_doc = pyrf_cpu_map__doc,
627 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
628 .tp_init = (initproc)pyrf_cpu_map__init,
629 };
630
631 static int pyrf_cpu_map__setup_types(void)
632 {
633 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
634 return PyType_Ready(&pyrf_cpu_map__type);
635 }
636
637 struct pyrf_thread_map {
638 PyObject_HEAD
639
640 struct perf_thread_map *threads;
641 };
642
643 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
644 PyObject *args, PyObject *kwargs)
645 {
646 static char *kwlist[] = { "pid", "tid", "uid", NULL };
647 int pid = -1, tid = -1, uid = UINT_MAX;
648
649 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
650 kwlist, &pid, &tid, &uid))
651 return -1;
652
653 pthreads->threads = thread_map__new(pid, tid, uid);
654 if (pthreads->threads == NULL)
655 return -1;
656 return 0;
657 }
658
659 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
660 {
661 perf_thread_map__put(pthreads->threads);
662 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
663 }
664
665 static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
666 {
667 struct pyrf_thread_map *pthreads = (void *)obj;
668
669 return pthreads->threads->nr;
670 }
671
672 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
673 {
674 struct pyrf_thread_map *pthreads = (void *)obj;
675
676 if (i >= pthreads->threads->nr)
677 return NULL;
678
679 return Py_BuildValue("i", pthreads->threads->map[i]);
680 }
681
682 static PySequenceMethods pyrf_thread_map__sequence_methods = {
683 .sq_length = pyrf_thread_map__length,
684 .sq_item = pyrf_thread_map__item,
685 };
686
687 static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
688
689 static PyTypeObject pyrf_thread_map__type = {
690 PyVarObject_HEAD_INIT(NULL, 0)
691 .tp_name = "perf.thread_map",
692 .tp_basicsize = sizeof(struct pyrf_thread_map),
693 .tp_dealloc = (destructor)pyrf_thread_map__delete,
694 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
695 .tp_doc = pyrf_thread_map__doc,
696 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
697 .tp_init = (initproc)pyrf_thread_map__init,
698 };
699
700 static int pyrf_thread_map__setup_types(void)
701 {
702 pyrf_thread_map__type.tp_new = PyType_GenericNew;
703 return PyType_Ready(&pyrf_thread_map__type);
704 }
705
706 struct pyrf_evsel {
707 PyObject_HEAD
708
709 struct evsel evsel;
710 };
711
712 static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
713 PyObject *args, PyObject *kwargs)
714 {
715 struct perf_event_attr attr = {
716 .type = PERF_TYPE_HARDWARE,
717 .config = PERF_COUNT_HW_CPU_CYCLES,
718 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
719 };
720 static char *kwlist[] = {
721 "type",
722 "config",
723 "sample_freq",
724 "sample_period",
725 "sample_type",
726 "read_format",
727 "disabled",
728 "inherit",
729 "pinned",
730 "exclusive",
731 "exclude_user",
732 "exclude_kernel",
733 "exclude_hv",
734 "exclude_idle",
735 "mmap",
736 "context_switch",
737 "comm",
738 "freq",
739 "inherit_stat",
740 "enable_on_exec",
741 "task",
742 "watermark",
743 "precise_ip",
744 "mmap_data",
745 "sample_id_all",
746 "wakeup_events",
747 "bp_type",
748 "bp_addr",
749 "bp_len",
750 NULL
751 };
752 u64 sample_period = 0;
753 u32 disabled = 0,
754 inherit = 0,
755 pinned = 0,
756 exclusive = 0,
757 exclude_user = 0,
758 exclude_kernel = 0,
759 exclude_hv = 0,
760 exclude_idle = 0,
761 mmap = 0,
762 context_switch = 0,
763 comm = 0,
764 freq = 1,
765 inherit_stat = 0,
766 enable_on_exec = 0,
767 task = 0,
768 watermark = 0,
769 precise_ip = 0,
770 mmap_data = 0,
771 sample_id_all = 1;
772 int idx = 0;
773
774 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
775 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
776 &attr.type, &attr.config, &attr.sample_freq,
777 &sample_period, &attr.sample_type,
778 &attr.read_format, &disabled, &inherit,
779 &pinned, &exclusive, &exclude_user,
780 &exclude_kernel, &exclude_hv, &exclude_idle,
781 &mmap, &context_switch, &comm, &freq, &inherit_stat,
782 &enable_on_exec, &task, &watermark,
783 &precise_ip, &mmap_data, &sample_id_all,
784 &attr.wakeup_events, &attr.bp_type,
785 &attr.bp_addr, &attr.bp_len, &idx))
786 return -1;
787
788 /* union... */
789 if (sample_period != 0) {
790 if (attr.sample_freq != 0)
791 return -1; /* FIXME: throw right exception */
792 attr.sample_period = sample_period;
793 }
794
795 /* Bitfields */
796 attr.disabled = disabled;
797 attr.inherit = inherit;
798 attr.pinned = pinned;
799 attr.exclusive = exclusive;
800 attr.exclude_user = exclude_user;
801 attr.exclude_kernel = exclude_kernel;
802 attr.exclude_hv = exclude_hv;
803 attr.exclude_idle = exclude_idle;
804 attr.mmap = mmap;
805 attr.context_switch = context_switch;
806 attr.comm = comm;
807 attr.freq = freq;
808 attr.inherit_stat = inherit_stat;
809 attr.enable_on_exec = enable_on_exec;
810 attr.task = task;
811 attr.watermark = watermark;
812 attr.precise_ip = precise_ip;
813 attr.mmap_data = mmap_data;
814 attr.sample_id_all = sample_id_all;
815 attr.size = sizeof(attr);
816
817 evsel__init(&pevsel->evsel, &attr, idx);
818 return 0;
819 }
820
821 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
822 {
823 evsel__exit(&pevsel->evsel);
824 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
825 }
826
827 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
828 PyObject *args, PyObject *kwargs)
829 {
830 struct evsel *evsel = &pevsel->evsel;
831 struct perf_cpu_map *cpus = NULL;
832 struct perf_thread_map *threads = NULL;
833 PyObject *pcpus = NULL, *pthreads = NULL;
834 int group = 0, inherit = 0;
835 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
836
837 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
838 &pcpus, &pthreads, &group, &inherit))
839 return NULL;
840
841 if (pthreads != NULL)
842 threads = ((struct pyrf_thread_map *)pthreads)->threads;
843
844 if (pcpus != NULL)
845 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
846
847 evsel->core.attr.inherit = inherit;
848 /*
849 * This will group just the fds for this single evsel, to group
850 * multiple events, use evlist.open().
851 */
852 if (evsel__open(evsel, cpus, threads) < 0) {
853 PyErr_SetFromErrno(PyExc_OSError);
854 return NULL;
855 }
856
857 Py_INCREF(Py_None);
858 return Py_None;
859 }
860
861 static PyMethodDef pyrf_evsel__methods[] = {
862 {
863 .ml_name = "open",
864 .ml_meth = (PyCFunction)pyrf_evsel__open,
865 .ml_flags = METH_VARARGS | METH_KEYWORDS,
866 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
867 },
868 { .ml_name = NULL, }
869 };
870
871 static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
872
873 static PyTypeObject pyrf_evsel__type = {
874 PyVarObject_HEAD_INIT(NULL, 0)
875 .tp_name = "perf.evsel",
876 .tp_basicsize = sizeof(struct pyrf_evsel),
877 .tp_dealloc = (destructor)pyrf_evsel__delete,
878 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
879 .tp_doc = pyrf_evsel__doc,
880 .tp_methods = pyrf_evsel__methods,
881 .tp_init = (initproc)pyrf_evsel__init,
882 };
883
884 static int pyrf_evsel__setup_types(void)
885 {
886 pyrf_evsel__type.tp_new = PyType_GenericNew;
887 return PyType_Ready(&pyrf_evsel__type);
888 }
889
890 struct pyrf_evlist {
891 PyObject_HEAD
892
893 struct evlist evlist;
894 };
895
896 static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
897 PyObject *args, PyObject *kwargs __maybe_unused)
898 {
899 PyObject *pcpus = NULL, *pthreads = NULL;
900 struct perf_cpu_map *cpus;
901 struct perf_thread_map *threads;
902
903 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
904 return -1;
905
906 threads = ((struct pyrf_thread_map *)pthreads)->threads;
907 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
908 evlist__init(&pevlist->evlist, cpus, threads);
909 return 0;
910 }
911
912 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
913 {
914 evlist__exit(&pevlist->evlist);
915 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
916 }
917
918 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
919 PyObject *args, PyObject *kwargs)
920 {
921 struct evlist *evlist = &pevlist->evlist;
922 static char *kwlist[] = { "pages", "overwrite", NULL };
923 int pages = 128, overwrite = false;
924
925 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
926 &pages, &overwrite))
927 return NULL;
928
929 if (evlist__mmap(evlist, pages) < 0) {
930 PyErr_SetFromErrno(PyExc_OSError);
931 return NULL;
932 }
933
934 Py_INCREF(Py_None);
935 return Py_None;
936 }
937
938 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
939 PyObject *args, PyObject *kwargs)
940 {
941 struct evlist *evlist = &pevlist->evlist;
942 static char *kwlist[] = { "timeout", NULL };
943 int timeout = -1, n;
944
945 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
946 return NULL;
947
948 n = evlist__poll(evlist, timeout);
949 if (n < 0) {
950 PyErr_SetFromErrno(PyExc_OSError);
951 return NULL;
952 }
953
954 return Py_BuildValue("i", n);
955 }
956
957 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
958 PyObject *args __maybe_unused,
959 PyObject *kwargs __maybe_unused)
960 {
961 struct evlist *evlist = &pevlist->evlist;
962 PyObject *list = PyList_New(0);
963 int i;
964
965 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
966 PyObject *file;
967 #if PY_MAJOR_VERSION < 3
968 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
969
970 if (fp == NULL)
971 goto free_list;
972
973 file = PyFile_FromFile(fp, "perf", "r", NULL);
974 #else
975 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
976 NULL, NULL, NULL, 0);
977 #endif
978 if (file == NULL)
979 goto free_list;
980
981 if (PyList_Append(list, file) != 0) {
982 Py_DECREF(file);
983 goto free_list;
984 }
985
986 Py_DECREF(file);
987 }
988
989 return list;
990 free_list:
991 return PyErr_NoMemory();
992 }
993
994
995 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
996 PyObject *args,
997 PyObject *kwargs __maybe_unused)
998 {
999 struct evlist *evlist = &pevlist->evlist;
1000 PyObject *pevsel;
1001 struct evsel *evsel;
1002
1003 if (!PyArg_ParseTuple(args, "O", &pevsel))
1004 return NULL;
1005
1006 Py_INCREF(pevsel);
1007 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
1008 evsel->idx = evlist->core.nr_entries;
1009 evlist__add(evlist, evsel);
1010
1011 return Py_BuildValue("i", evlist->core.nr_entries);
1012 }
1013
1014 static struct mmap *get_md(struct evlist *evlist, int cpu)
1015 {
1016 int i;
1017
1018 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1019 struct mmap *md = &evlist->mmap[i];
1020
1021 if (md->core.cpu == cpu)
1022 return md;
1023 }
1024
1025 return NULL;
1026 }
1027
1028 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1029 PyObject *args, PyObject *kwargs)
1030 {
1031 struct evlist *evlist = &pevlist->evlist;
1032 union perf_event *event;
1033 int sample_id_all = 1, cpu;
1034 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1035 struct mmap *md;
1036 int err;
1037
1038 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1039 &cpu, &sample_id_all))
1040 return NULL;
1041
1042 md = get_md(evlist, cpu);
1043 if (!md)
1044 return NULL;
1045
1046 if (perf_mmap__read_init(&md->core) < 0)
1047 goto end;
1048
1049 event = perf_mmap__read_event(&md->core);
1050 if (event != NULL) {
1051 PyObject *pyevent = pyrf_event__new(event);
1052 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1053 struct evsel *evsel;
1054
1055 if (pyevent == NULL)
1056 return PyErr_NoMemory();
1057
1058 evsel = evlist__event2evsel(evlist, event);
1059 if (!evsel) {
1060 Py_INCREF(Py_None);
1061 return Py_None;
1062 }
1063
1064 pevent->evsel = evsel;
1065
1066 err = evsel__parse_sample(evsel, event, &pevent->sample);
1067
1068 /* Consume the even only after we parsed it out. */
1069 perf_mmap__consume(&md->core);
1070
1071 if (err)
1072 return PyErr_Format(PyExc_OSError,
1073 "perf: can't parse sample, err=%d", err);
1074 return pyevent;
1075 }
1076 end:
1077 Py_INCREF(Py_None);
1078 return Py_None;
1079 }
1080
1081 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1082 PyObject *args, PyObject *kwargs)
1083 {
1084 struct evlist *evlist = &pevlist->evlist;
1085 int group = 0;
1086 static char *kwlist[] = { "group", NULL };
1087
1088 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1089 return NULL;
1090
1091 if (group)
1092 evlist__set_leader(evlist);
1093
1094 if (evlist__open(evlist) < 0) {
1095 PyErr_SetFromErrno(PyExc_OSError);
1096 return NULL;
1097 }
1098
1099 Py_INCREF(Py_None);
1100 return Py_None;
1101 }
1102
1103 static PyMethodDef pyrf_evlist__methods[] = {
1104 {
1105 .ml_name = "mmap",
1106 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1107 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1108 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1109 },
1110 {
1111 .ml_name = "open",
1112 .ml_meth = (PyCFunction)pyrf_evlist__open,
1113 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1114 .ml_doc = PyDoc_STR("open the file descriptors.")
1115 },
1116 {
1117 .ml_name = "poll",
1118 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1119 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1120 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1121 },
1122 {
1123 .ml_name = "get_pollfd",
1124 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1125 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1126 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1127 },
1128 {
1129 .ml_name = "add",
1130 .ml_meth = (PyCFunction)pyrf_evlist__add,
1131 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1132 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1133 },
1134 {
1135 .ml_name = "read_on_cpu",
1136 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1137 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1138 .ml_doc = PyDoc_STR("reads an event.")
1139 },
1140 { .ml_name = NULL, }
1141 };
1142
1143 static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1144 {
1145 struct pyrf_evlist *pevlist = (void *)obj;
1146
1147 return pevlist->evlist.core.nr_entries;
1148 }
1149
1150 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1151 {
1152 struct pyrf_evlist *pevlist = (void *)obj;
1153 struct evsel *pos;
1154
1155 if (i >= pevlist->evlist.core.nr_entries)
1156 return NULL;
1157
1158 evlist__for_each_entry(&pevlist->evlist, pos) {
1159 if (i-- == 0)
1160 break;
1161 }
1162
1163 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1164 }
1165
1166 static PySequenceMethods pyrf_evlist__sequence_methods = {
1167 .sq_length = pyrf_evlist__length,
1168 .sq_item = pyrf_evlist__item,
1169 };
1170
1171 static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1172
1173 static PyTypeObject pyrf_evlist__type = {
1174 PyVarObject_HEAD_INIT(NULL, 0)
1175 .tp_name = "perf.evlist",
1176 .tp_basicsize = sizeof(struct pyrf_evlist),
1177 .tp_dealloc = (destructor)pyrf_evlist__delete,
1178 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1179 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1180 .tp_doc = pyrf_evlist__doc,
1181 .tp_methods = pyrf_evlist__methods,
1182 .tp_init = (initproc)pyrf_evlist__init,
1183 };
1184
1185 static int pyrf_evlist__setup_types(void)
1186 {
1187 pyrf_evlist__type.tp_new = PyType_GenericNew;
1188 return PyType_Ready(&pyrf_evlist__type);
1189 }
1190
1191 #define PERF_CONST(name) { #name, PERF_##name }
1192
1193 static struct {
1194 const char *name;
1195 int value;
1196 } perf__constants[] = {
1197 PERF_CONST(TYPE_HARDWARE),
1198 PERF_CONST(TYPE_SOFTWARE),
1199 PERF_CONST(TYPE_TRACEPOINT),
1200 PERF_CONST(TYPE_HW_CACHE),
1201 PERF_CONST(TYPE_RAW),
1202 PERF_CONST(TYPE_BREAKPOINT),
1203
1204 PERF_CONST(COUNT_HW_CPU_CYCLES),
1205 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1206 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1207 PERF_CONST(COUNT_HW_CACHE_MISSES),
1208 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1209 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1210 PERF_CONST(COUNT_HW_BUS_CYCLES),
1211 PERF_CONST(COUNT_HW_CACHE_L1D),
1212 PERF_CONST(COUNT_HW_CACHE_L1I),
1213 PERF_CONST(COUNT_HW_CACHE_LL),
1214 PERF_CONST(COUNT_HW_CACHE_DTLB),
1215 PERF_CONST(COUNT_HW_CACHE_ITLB),
1216 PERF_CONST(COUNT_HW_CACHE_BPU),
1217 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1218 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1219 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1220 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1221 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1222
1223 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1224 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1225
1226 PERF_CONST(COUNT_SW_CPU_CLOCK),
1227 PERF_CONST(COUNT_SW_TASK_CLOCK),
1228 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1229 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1230 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1231 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1232 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1233 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1234 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1235 PERF_CONST(COUNT_SW_DUMMY),
1236
1237 PERF_CONST(SAMPLE_IP),
1238 PERF_CONST(SAMPLE_TID),
1239 PERF_CONST(SAMPLE_TIME),
1240 PERF_CONST(SAMPLE_ADDR),
1241 PERF_CONST(SAMPLE_READ),
1242 PERF_CONST(SAMPLE_CALLCHAIN),
1243 PERF_CONST(SAMPLE_ID),
1244 PERF_CONST(SAMPLE_CPU),
1245 PERF_CONST(SAMPLE_PERIOD),
1246 PERF_CONST(SAMPLE_STREAM_ID),
1247 PERF_CONST(SAMPLE_RAW),
1248
1249 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1250 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1251 PERF_CONST(FORMAT_ID),
1252 PERF_CONST(FORMAT_GROUP),
1253
1254 PERF_CONST(RECORD_MMAP),
1255 PERF_CONST(RECORD_LOST),
1256 PERF_CONST(RECORD_COMM),
1257 PERF_CONST(RECORD_EXIT),
1258 PERF_CONST(RECORD_THROTTLE),
1259 PERF_CONST(RECORD_UNTHROTTLE),
1260 PERF_CONST(RECORD_FORK),
1261 PERF_CONST(RECORD_READ),
1262 PERF_CONST(RECORD_SAMPLE),
1263 PERF_CONST(RECORD_MMAP2),
1264 PERF_CONST(RECORD_AUX),
1265 PERF_CONST(RECORD_ITRACE_START),
1266 PERF_CONST(RECORD_LOST_SAMPLES),
1267 PERF_CONST(RECORD_SWITCH),
1268 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1269
1270 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1271 { .name = NULL, },
1272 };
1273
1274 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1275 PyObject *args, PyObject *kwargs)
1276 {
1277 struct tep_event *tp_format;
1278 static char *kwlist[] = { "sys", "name", NULL };
1279 char *sys = NULL;
1280 char *name = NULL;
1281
1282 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1283 &sys, &name))
1284 return NULL;
1285
1286 tp_format = trace_event__tp_format(sys, name);
1287 if (IS_ERR(tp_format))
1288 return _PyLong_FromLong(-1);
1289
1290 return _PyLong_FromLong(tp_format->id);
1291 }
1292
1293 static PyMethodDef perf__methods[] = {
1294 {
1295 .ml_name = "tracepoint",
1296 .ml_meth = (PyCFunction) pyrf__tracepoint,
1297 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1298 .ml_doc = PyDoc_STR("Get tracepoint config.")
1299 },
1300 { .ml_name = NULL, }
1301 };
1302
1303 #if PY_MAJOR_VERSION < 3
1304 PyMODINIT_FUNC initperf(void)
1305 #else
1306 PyMODINIT_FUNC PyInit_perf(void)
1307 #endif
1308 {
1309 PyObject *obj;
1310 int i;
1311 PyObject *dict;
1312 #if PY_MAJOR_VERSION < 3
1313 PyObject *module = Py_InitModule("perf", perf__methods);
1314 #else
1315 static struct PyModuleDef moduledef = {
1316 PyModuleDef_HEAD_INIT,
1317 "perf", /* m_name */
1318 "", /* m_doc */
1319 -1, /* m_size */
1320 perf__methods, /* m_methods */
1321 NULL, /* m_reload */
1322 NULL, /* m_traverse */
1323 NULL, /* m_clear */
1324 NULL, /* m_free */
1325 };
1326 PyObject *module = PyModule_Create(&moduledef);
1327 #endif
1328
1329 if (module == NULL ||
1330 pyrf_event__setup_types() < 0 ||
1331 pyrf_evlist__setup_types() < 0 ||
1332 pyrf_evsel__setup_types() < 0 ||
1333 pyrf_thread_map__setup_types() < 0 ||
1334 pyrf_cpu_map__setup_types() < 0)
1335 #if PY_MAJOR_VERSION < 3
1336 return;
1337 #else
1338 return module;
1339 #endif
1340
1341 /* The page_size is placed in util object. */
1342 page_size = sysconf(_SC_PAGE_SIZE);
1343
1344 Py_INCREF(&pyrf_evlist__type);
1345 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1346
1347 Py_INCREF(&pyrf_evsel__type);
1348 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1349
1350 Py_INCREF(&pyrf_mmap_event__type);
1351 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1352
1353 Py_INCREF(&pyrf_lost_event__type);
1354 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1355
1356 Py_INCREF(&pyrf_comm_event__type);
1357 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1358
1359 Py_INCREF(&pyrf_task_event__type);
1360 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1361
1362 Py_INCREF(&pyrf_throttle_event__type);
1363 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1364
1365 Py_INCREF(&pyrf_task_event__type);
1366 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1367
1368 Py_INCREF(&pyrf_read_event__type);
1369 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1370
1371 Py_INCREF(&pyrf_sample_event__type);
1372 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1373
1374 Py_INCREF(&pyrf_context_switch_event__type);
1375 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1376
1377 Py_INCREF(&pyrf_thread_map__type);
1378 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1379
1380 Py_INCREF(&pyrf_cpu_map__type);
1381 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1382
1383 dict = PyModule_GetDict(module);
1384 if (dict == NULL)
1385 goto error;
1386
1387 for (i = 0; perf__constants[i].name != NULL; i++) {
1388 obj = _PyLong_FromLong(perf__constants[i].value);
1389 if (obj == NULL)
1390 goto error;
1391 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1392 Py_DECREF(obj);
1393 }
1394
1395 error:
1396 if (PyErr_Occurred())
1397 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1398 #if PY_MAJOR_VERSION >= 3
1399 return module;
1400 #endif
1401 }
1402
1403 /*
1404 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1405 * binding.
1406 */
1407 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1408 int fd, int group_fd, unsigned long flags)
1409 {
1410 }
Linux with added FPC-III support