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 <event-parse.h>
10 #endif
11 #include <perf/mmap.h>
12 #include "callchain.h"
13 #include "counts.h"
14 #include "evlist.h"
15 #include "evsel.h"
16 #include "event.h"
17 #include "print_binary.h"
18 #include "record.h"
19 #include "strbuf.h"
20 #include "thread_map.h"
21 #include "trace-event.h"
22 #include "metricgroup.h"
23 #include "mmap.h"
24 #include "util/sample.h"
25 #include <internal/lib.h>
26
27 PyMODINIT_FUNC PyInit_perf(void);
28
29 #define member_def(type, member, ptype, help) \
30 { #member, ptype, \
31 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
32 0, help }
33
34 #define sample_member_def(name, member, ptype, help) \
35 { #name, ptype, \
36 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
37 0, help }
38
39 struct pyrf_event {
40 PyObject_HEAD
41 struct evsel *evsel;
42 struct perf_sample sample;
43 union perf_event event;
44 };
45
46 #define sample_members \
47 sample_member_def(sample_ip, ip, T_ULONGLONG, "event ip"), \
48 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
49 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
50 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
51 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
52 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
53 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
54 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
55 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
56
57 static const char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
58
59 static PyMemberDef pyrf_mmap_event__members[] = {
60 sample_members
61 member_def(perf_event_header, type, T_UINT, "event type"),
62 member_def(perf_event_header, misc, T_UINT, "event misc"),
63 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
64 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
65 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
66 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
67 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
68 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
69 { .name = NULL, },
70 };
71
pyrf_mmap_event__repr(const struct pyrf_event * pevent)72 static PyObject *pyrf_mmap_event__repr(const struct pyrf_event *pevent)
73 {
74 PyObject *ret;
75 char *s;
76
77 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
78 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
79 "filename: %s }",
80 pevent->event.mmap.pid, pevent->event.mmap.tid,
81 pevent->event.mmap.start, pevent->event.mmap.len,
82 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
83 ret = PyErr_NoMemory();
84 } else {
85 ret = PyUnicode_FromString(s);
86 free(s);
87 }
88 return ret;
89 }
90
91 static PyTypeObject pyrf_mmap_event__type = {
92 PyVarObject_HEAD_INIT(NULL, 0)
93 .tp_name = "perf.mmap_event",
94 .tp_basicsize = sizeof(struct pyrf_event),
95 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
96 .tp_doc = pyrf_mmap_event__doc,
97 .tp_members = pyrf_mmap_event__members,
98 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
99 };
100
101 static const char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
102
103 static PyMemberDef pyrf_task_event__members[] = {
104 sample_members
105 member_def(perf_event_header, type, T_UINT, "event type"),
106 member_def(perf_record_fork, pid, T_UINT, "event pid"),
107 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
108 member_def(perf_record_fork, tid, T_UINT, "event tid"),
109 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
110 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
111 { .name = NULL, },
112 };
113
pyrf_task_event__repr(const struct pyrf_event * pevent)114 static PyObject *pyrf_task_event__repr(const struct pyrf_event *pevent)
115 {
116 return PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
117 "ptid: %u, time: %" PRI_lu64 "}",
118 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
119 pevent->event.fork.pid,
120 pevent->event.fork.ppid,
121 pevent->event.fork.tid,
122 pevent->event.fork.ptid,
123 pevent->event.fork.time);
124 }
125
126 static PyTypeObject pyrf_task_event__type = {
127 PyVarObject_HEAD_INIT(NULL, 0)
128 .tp_name = "perf.task_event",
129 .tp_basicsize = sizeof(struct pyrf_event),
130 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
131 .tp_doc = pyrf_task_event__doc,
132 .tp_members = pyrf_task_event__members,
133 .tp_repr = (reprfunc)pyrf_task_event__repr,
134 };
135
136 static const char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
137
138 static PyMemberDef pyrf_comm_event__members[] = {
139 sample_members
140 member_def(perf_event_header, type, T_UINT, "event type"),
141 member_def(perf_record_comm, pid, T_UINT, "event pid"),
142 member_def(perf_record_comm, tid, T_UINT, "event tid"),
143 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
144 { .name = NULL, },
145 };
146
pyrf_comm_event__repr(const struct pyrf_event * pevent)147 static PyObject *pyrf_comm_event__repr(const struct pyrf_event *pevent)
148 {
149 return PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
150 pevent->event.comm.pid,
151 pevent->event.comm.tid,
152 pevent->event.comm.comm);
153 }
154
155 static PyTypeObject pyrf_comm_event__type = {
156 PyVarObject_HEAD_INIT(NULL, 0)
157 .tp_name = "perf.comm_event",
158 .tp_basicsize = sizeof(struct pyrf_event),
159 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
160 .tp_doc = pyrf_comm_event__doc,
161 .tp_members = pyrf_comm_event__members,
162 .tp_repr = (reprfunc)pyrf_comm_event__repr,
163 };
164
165 static const char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
166
167 static PyMemberDef pyrf_throttle_event__members[] = {
168 sample_members
169 member_def(perf_event_header, type, T_UINT, "event type"),
170 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
171 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
172 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
173 { .name = NULL, },
174 };
175
pyrf_throttle_event__repr(const struct pyrf_event * pevent)176 static PyObject *pyrf_throttle_event__repr(const struct pyrf_event *pevent)
177 {
178 const struct perf_record_throttle *te = (const struct perf_record_throttle *)
179 (&pevent->event.header + 1);
180
181 return PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
182 ", stream_id: %" PRI_lu64 " }",
183 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
184 te->time, te->id, te->stream_id);
185 }
186
187 static PyTypeObject pyrf_throttle_event__type = {
188 PyVarObject_HEAD_INIT(NULL, 0)
189 .tp_name = "perf.throttle_event",
190 .tp_basicsize = sizeof(struct pyrf_event),
191 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
192 .tp_doc = pyrf_throttle_event__doc,
193 .tp_members = pyrf_throttle_event__members,
194 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
195 };
196
197 static const char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
198
199 static PyMemberDef pyrf_lost_event__members[] = {
200 sample_members
201 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
202 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
203 { .name = NULL, },
204 };
205
pyrf_lost_event__repr(const struct pyrf_event * pevent)206 static PyObject *pyrf_lost_event__repr(const struct pyrf_event *pevent)
207 {
208 PyObject *ret;
209 char *s;
210
211 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
212 "lost: %#" PRI_lx64 " }",
213 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
214 ret = PyErr_NoMemory();
215 } else {
216 ret = PyUnicode_FromString(s);
217 free(s);
218 }
219 return ret;
220 }
221
222 static PyTypeObject pyrf_lost_event__type = {
223 PyVarObject_HEAD_INIT(NULL, 0)
224 .tp_name = "perf.lost_event",
225 .tp_basicsize = sizeof(struct pyrf_event),
226 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
227 .tp_doc = pyrf_lost_event__doc,
228 .tp_members = pyrf_lost_event__members,
229 .tp_repr = (reprfunc)pyrf_lost_event__repr,
230 };
231
232 static const char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
233
234 static PyMemberDef pyrf_read_event__members[] = {
235 sample_members
236 member_def(perf_record_read, pid, T_UINT, "event pid"),
237 member_def(perf_record_read, tid, T_UINT, "event tid"),
238 { .name = NULL, },
239 };
240
pyrf_read_event__repr(const struct pyrf_event * pevent)241 static PyObject *pyrf_read_event__repr(const struct pyrf_event *pevent)
242 {
243 return PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
244 pevent->event.read.pid,
245 pevent->event.read.tid);
246 /*
247 * FIXME: return the array of read values,
248 * making this method useful ;-)
249 */
250 }
251
252 static PyTypeObject pyrf_read_event__type = {
253 PyVarObject_HEAD_INIT(NULL, 0)
254 .tp_name = "perf.read_event",
255 .tp_basicsize = sizeof(struct pyrf_event),
256 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
257 .tp_doc = pyrf_read_event__doc,
258 .tp_members = pyrf_read_event__members,
259 .tp_repr = (reprfunc)pyrf_read_event__repr,
260 };
261
262 static const char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
263
264 static PyMemberDef pyrf_sample_event__members[] = {
265 sample_members
266 member_def(perf_event_header, type, T_UINT, "event type"),
267 { .name = NULL, },
268 };
269
pyrf_sample_event__delete(struct pyrf_event * pevent)270 static void pyrf_sample_event__delete(struct pyrf_event *pevent)
271 {
272 perf_sample__exit(&pevent->sample);
273 Py_TYPE(pevent)->tp_free((PyObject*)pevent);
274 }
275
pyrf_sample_event__repr(const struct pyrf_event * pevent)276 static PyObject *pyrf_sample_event__repr(const struct pyrf_event *pevent)
277 {
278 PyObject *ret;
279 char *s;
280
281 if (asprintf(&s, "{ type: sample }") < 0) {
282 ret = PyErr_NoMemory();
283 } else {
284 ret = PyUnicode_FromString(s);
285 free(s);
286 }
287 return ret;
288 }
289
290 #ifdef HAVE_LIBTRACEEVENT
is_tracepoint(const struct pyrf_event * pevent)291 static bool is_tracepoint(const struct pyrf_event *pevent)
292 {
293 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
294 }
295
296 static PyObject*
tracepoint_field(const struct pyrf_event * pe,struct tep_format_field * field)297 tracepoint_field(const struct pyrf_event *pe, struct tep_format_field *field)
298 {
299 struct tep_handle *pevent = field->event->tep;
300 void *data = pe->sample.raw_data;
301 PyObject *ret = NULL;
302 unsigned long long val;
303 unsigned int offset, len;
304
305 if (field->flags & TEP_FIELD_IS_ARRAY) {
306 offset = field->offset;
307 len = field->size;
308 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
309 val = tep_read_number(pevent, data + offset, len);
310 offset = val;
311 len = offset >> 16;
312 offset &= 0xffff;
313 if (tep_field_is_relative(field->flags))
314 offset += field->offset + field->size;
315 }
316 if (field->flags & TEP_FIELD_IS_STRING &&
317 is_printable_array(data + offset, len)) {
318 ret = PyUnicode_FromString((char *)data + offset);
319 } else {
320 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
321 field->flags &= ~TEP_FIELD_IS_STRING;
322 }
323 } else {
324 val = tep_read_number(pevent, data + field->offset,
325 field->size);
326 if (field->flags & TEP_FIELD_IS_POINTER)
327 ret = PyLong_FromUnsignedLong((unsigned long) val);
328 else if (field->flags & TEP_FIELD_IS_SIGNED)
329 ret = PyLong_FromLong((long) val);
330 else
331 ret = PyLong_FromUnsignedLong((unsigned long) val);
332 }
333
334 return ret;
335 }
336
337 static PyObject*
get_tracepoint_field(struct pyrf_event * pevent,PyObject * attr_name)338 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
339 {
340 struct evsel *evsel = pevent->evsel;
341 struct tep_event *tp_format = evsel__tp_format(evsel);
342 struct tep_format_field *field;
343
344 if (IS_ERR_OR_NULL(tp_format))
345 return NULL;
346
347 PyObject *obj = PyObject_Str(attr_name);
348 if (obj == NULL)
349 return NULL;
350
351 const char *str = PyUnicode_AsUTF8(obj);
352 if (str == NULL) {
353 Py_DECREF(obj);
354 return NULL;
355 }
356
357 field = tep_find_any_field(tp_format, str);
358 Py_DECREF(obj);
359 return field ? tracepoint_field(pevent, field) : NULL;
360 }
361 #endif /* HAVE_LIBTRACEEVENT */
362
363 static PyObject*
pyrf_sample_event__getattro(struct pyrf_event * pevent,PyObject * attr_name)364 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
365 {
366 PyObject *obj = NULL;
367
368 #ifdef HAVE_LIBTRACEEVENT
369 if (is_tracepoint(pevent))
370 obj = get_tracepoint_field(pevent, attr_name);
371 #endif
372
373 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
374 }
375
376 static PyTypeObject pyrf_sample_event__type = {
377 PyVarObject_HEAD_INIT(NULL, 0)
378 .tp_name = "perf.sample_event",
379 .tp_basicsize = sizeof(struct pyrf_event),
380 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
381 .tp_doc = pyrf_sample_event__doc,
382 .tp_members = pyrf_sample_event__members,
383 .tp_repr = (reprfunc)pyrf_sample_event__repr,
384 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
385 };
386
387 static const char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
388
389 static PyMemberDef pyrf_context_switch_event__members[] = {
390 sample_members
391 member_def(perf_event_header, type, T_UINT, "event type"),
392 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
393 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
394 { .name = NULL, },
395 };
396
pyrf_context_switch_event__repr(const struct pyrf_event * pevent)397 static PyObject *pyrf_context_switch_event__repr(const struct pyrf_event *pevent)
398 {
399 PyObject *ret;
400 char *s;
401
402 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
403 pevent->event.context_switch.next_prev_pid,
404 pevent->event.context_switch.next_prev_tid,
405 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
406 ret = PyErr_NoMemory();
407 } else {
408 ret = PyUnicode_FromString(s);
409 free(s);
410 }
411 return ret;
412 }
413
414 static PyTypeObject pyrf_context_switch_event__type = {
415 PyVarObject_HEAD_INIT(NULL, 0)
416 .tp_name = "perf.context_switch_event",
417 .tp_basicsize = sizeof(struct pyrf_event),
418 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
419 .tp_doc = pyrf_context_switch_event__doc,
420 .tp_members = pyrf_context_switch_event__members,
421 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
422 };
423
pyrf_event__setup_types(void)424 static int pyrf_event__setup_types(void)
425 {
426 int err;
427 pyrf_mmap_event__type.tp_new =
428 pyrf_task_event__type.tp_new =
429 pyrf_comm_event__type.tp_new =
430 pyrf_lost_event__type.tp_new =
431 pyrf_read_event__type.tp_new =
432 pyrf_sample_event__type.tp_new =
433 pyrf_context_switch_event__type.tp_new =
434 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
435
436 pyrf_sample_event__type.tp_dealloc = (destructor)pyrf_sample_event__delete,
437
438 err = PyType_Ready(&pyrf_mmap_event__type);
439 if (err < 0)
440 goto out;
441 err = PyType_Ready(&pyrf_lost_event__type);
442 if (err < 0)
443 goto out;
444 err = PyType_Ready(&pyrf_task_event__type);
445 if (err < 0)
446 goto out;
447 err = PyType_Ready(&pyrf_comm_event__type);
448 if (err < 0)
449 goto out;
450 err = PyType_Ready(&pyrf_throttle_event__type);
451 if (err < 0)
452 goto out;
453 err = PyType_Ready(&pyrf_read_event__type);
454 if (err < 0)
455 goto out;
456 err = PyType_Ready(&pyrf_sample_event__type);
457 if (err < 0)
458 goto out;
459 err = PyType_Ready(&pyrf_context_switch_event__type);
460 if (err < 0)
461 goto out;
462 out:
463 return err;
464 }
465
466 static PyTypeObject *pyrf_event__type[] = {
467 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
468 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
469 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
470 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
471 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
472 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
473 [PERF_RECORD_FORK] = &pyrf_task_event__type,
474 [PERF_RECORD_READ] = &pyrf_read_event__type,
475 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
476 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
477 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
478 };
479
pyrf_event__new(const union perf_event * event)480 static PyObject *pyrf_event__new(const union perf_event *event)
481 {
482 struct pyrf_event *pevent;
483 PyTypeObject *ptype;
484
485 if ((event->header.type < PERF_RECORD_MMAP ||
486 event->header.type > PERF_RECORD_SAMPLE) &&
487 !(event->header.type == PERF_RECORD_SWITCH ||
488 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
489 return NULL;
490
491 // FIXME this better be dynamic or we need to parse everything
492 // before calling perf_mmap__consume(), including tracepoint fields.
493 if (sizeof(pevent->event) < event->header.size)
494 return NULL;
495
496 ptype = pyrf_event__type[event->header.type];
497 pevent = PyObject_New(struct pyrf_event, ptype);
498 if (pevent != NULL)
499 memcpy(&pevent->event, event, event->header.size);
500 return (PyObject *)pevent;
501 }
502
503 struct pyrf_cpu_map {
504 PyObject_HEAD
505
506 struct perf_cpu_map *cpus;
507 };
508
pyrf_cpu_map__init(struct pyrf_cpu_map * pcpus,PyObject * args,PyObject * kwargs)509 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
510 PyObject *args, PyObject *kwargs)
511 {
512 static char *kwlist[] = { "cpustr", NULL };
513 char *cpustr = NULL;
514
515 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
516 kwlist, &cpustr))
517 return -1;
518
519 pcpus->cpus = perf_cpu_map__new(cpustr);
520 if (pcpus->cpus == NULL)
521 return -1;
522 return 0;
523 }
524
pyrf_cpu_map__delete(struct pyrf_cpu_map * pcpus)525 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
526 {
527 perf_cpu_map__put(pcpus->cpus);
528 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
529 }
530
pyrf_cpu_map__length(PyObject * obj)531 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
532 {
533 struct pyrf_cpu_map *pcpus = (void *)obj;
534
535 return perf_cpu_map__nr(pcpus->cpus);
536 }
537
pyrf_cpu_map__item(PyObject * obj,Py_ssize_t i)538 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
539 {
540 struct pyrf_cpu_map *pcpus = (void *)obj;
541
542 if (i >= perf_cpu_map__nr(pcpus->cpus)) {
543 PyErr_SetString(PyExc_IndexError, "Index out of range");
544 return NULL;
545 }
546
547 return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
548 }
549
550 static PySequenceMethods pyrf_cpu_map__sequence_methods = {
551 .sq_length = pyrf_cpu_map__length,
552 .sq_item = pyrf_cpu_map__item,
553 };
554
555 static const char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
556
557 static PyTypeObject pyrf_cpu_map__type = {
558 PyVarObject_HEAD_INIT(NULL, 0)
559 .tp_name = "perf.cpu_map",
560 .tp_basicsize = sizeof(struct pyrf_cpu_map),
561 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
562 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
563 .tp_doc = pyrf_cpu_map__doc,
564 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
565 .tp_init = (initproc)pyrf_cpu_map__init,
566 };
567
pyrf_cpu_map__setup_types(void)568 static int pyrf_cpu_map__setup_types(void)
569 {
570 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
571 return PyType_Ready(&pyrf_cpu_map__type);
572 }
573
574 struct pyrf_thread_map {
575 PyObject_HEAD
576
577 struct perf_thread_map *threads;
578 };
579
pyrf_thread_map__init(struct pyrf_thread_map * pthreads,PyObject * args,PyObject * kwargs)580 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
581 PyObject *args, PyObject *kwargs)
582 {
583 static char *kwlist[] = { "pid", "tid", NULL };
584 int pid = -1, tid = -1;
585
586 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii",
587 kwlist, &pid, &tid))
588 return -1;
589
590 pthreads->threads = thread_map__new(pid, tid);
591 if (pthreads->threads == NULL)
592 return -1;
593 return 0;
594 }
595
pyrf_thread_map__delete(struct pyrf_thread_map * pthreads)596 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
597 {
598 perf_thread_map__put(pthreads->threads);
599 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
600 }
601
pyrf_thread_map__length(PyObject * obj)602 static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
603 {
604 struct pyrf_thread_map *pthreads = (void *)obj;
605
606 return perf_thread_map__nr(pthreads->threads);
607 }
608
pyrf_thread_map__item(PyObject * obj,Py_ssize_t i)609 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
610 {
611 struct pyrf_thread_map *pthreads = (void *)obj;
612
613 if (i >= perf_thread_map__nr(pthreads->threads)) {
614 PyErr_SetString(PyExc_IndexError, "Index out of range");
615 return NULL;
616 }
617
618 return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
619 }
620
621 static PySequenceMethods pyrf_thread_map__sequence_methods = {
622 .sq_length = pyrf_thread_map__length,
623 .sq_item = pyrf_thread_map__item,
624 };
625
626 static const char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
627
628 static PyTypeObject pyrf_thread_map__type = {
629 PyVarObject_HEAD_INIT(NULL, 0)
630 .tp_name = "perf.thread_map",
631 .tp_basicsize = sizeof(struct pyrf_thread_map),
632 .tp_dealloc = (destructor)pyrf_thread_map__delete,
633 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
634 .tp_doc = pyrf_thread_map__doc,
635 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
636 .tp_init = (initproc)pyrf_thread_map__init,
637 };
638
pyrf_thread_map__setup_types(void)639 static int pyrf_thread_map__setup_types(void)
640 {
641 pyrf_thread_map__type.tp_new = PyType_GenericNew;
642 return PyType_Ready(&pyrf_thread_map__type);
643 }
644
645 struct pyrf_counts_values {
646 PyObject_HEAD
647
648 struct perf_counts_values values;
649 };
650
651 static const char pyrf_counts_values__doc[] = PyDoc_STR("perf counts values object.");
652
pyrf_counts_values__delete(struct pyrf_counts_values * pcounts_values)653 static void pyrf_counts_values__delete(struct pyrf_counts_values *pcounts_values)
654 {
655 Py_TYPE(pcounts_values)->tp_free((PyObject *)pcounts_values);
656 }
657
658 #define counts_values_member_def(member, ptype, help) \
659 { #member, ptype, \
660 offsetof(struct pyrf_counts_values, values.member), \
661 0, help }
662
663 static PyMemberDef pyrf_counts_values_members[] = {
664 counts_values_member_def(val, T_ULONG, "Value of event"),
665 counts_values_member_def(ena, T_ULONG, "Time for which enabled"),
666 counts_values_member_def(run, T_ULONG, "Time for which running"),
667 counts_values_member_def(id, T_ULONG, "Unique ID for an event"),
668 counts_values_member_def(lost, T_ULONG, "Num of lost samples"),
669 { .name = NULL, },
670 };
671
pyrf_counts_values_get_values(struct pyrf_counts_values * self,void * closure)672 static PyObject *pyrf_counts_values_get_values(struct pyrf_counts_values *self, void *closure)
673 {
674 PyObject *vals = PyList_New(5);
675
676 if (!vals)
677 return NULL;
678 for (int i = 0; i < 5; i++)
679 PyList_SetItem(vals, i, PyLong_FromLong(self->values.values[i]));
680
681 return vals;
682 }
683
pyrf_counts_values_set_values(struct pyrf_counts_values * self,PyObject * list,void * closure)684 static int pyrf_counts_values_set_values(struct pyrf_counts_values *self, PyObject *list,
685 void *closure)
686 {
687 Py_ssize_t size;
688 PyObject *item = NULL;
689
690 if (!PyList_Check(list)) {
691 PyErr_SetString(PyExc_TypeError, "Value assigned must be a list");
692 return -1;
693 }
694
695 size = PyList_Size(list);
696 for (Py_ssize_t i = 0; i < size; i++) {
697 item = PyList_GetItem(list, i);
698 if (!PyLong_Check(item)) {
699 PyErr_SetString(PyExc_TypeError, "List members should be numbers");
700 return -1;
701 }
702 self->values.values[i] = PyLong_AsLong(item);
703 }
704
705 return 0;
706 }
707
708 static PyGetSetDef pyrf_counts_values_getset[] = {
709 {"values", (getter)pyrf_counts_values_get_values, (setter)pyrf_counts_values_set_values,
710 "Name field", NULL},
711 { .name = NULL, },
712 };
713
714 static PyTypeObject pyrf_counts_values__type = {
715 PyVarObject_HEAD_INIT(NULL, 0)
716 .tp_name = "perf.counts_values",
717 .tp_basicsize = sizeof(struct pyrf_counts_values),
718 .tp_dealloc = (destructor)pyrf_counts_values__delete,
719 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
720 .tp_doc = pyrf_counts_values__doc,
721 .tp_members = pyrf_counts_values_members,
722 .tp_getset = pyrf_counts_values_getset,
723 };
724
pyrf_counts_values__setup_types(void)725 static int pyrf_counts_values__setup_types(void)
726 {
727 pyrf_counts_values__type.tp_new = PyType_GenericNew;
728 return PyType_Ready(&pyrf_counts_values__type);
729 }
730
731 struct pyrf_evsel {
732 PyObject_HEAD
733
734 struct evsel evsel;
735 };
736
pyrf_evsel__init(struct pyrf_evsel * pevsel,PyObject * args,PyObject * kwargs)737 static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
738 PyObject *args, PyObject *kwargs)
739 {
740 struct perf_event_attr attr = {
741 .type = PERF_TYPE_HARDWARE,
742 .config = PERF_COUNT_HW_CPU_CYCLES,
743 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
744 };
745 static char *kwlist[] = {
746 "type",
747 "config",
748 "sample_freq",
749 "sample_period",
750 "sample_type",
751 "read_format",
752 "disabled",
753 "inherit",
754 "pinned",
755 "exclusive",
756 "exclude_user",
757 "exclude_kernel",
758 "exclude_hv",
759 "exclude_idle",
760 "mmap",
761 "context_switch",
762 "comm",
763 "freq",
764 "inherit_stat",
765 "enable_on_exec",
766 "task",
767 "watermark",
768 "precise_ip",
769 "mmap_data",
770 "sample_id_all",
771 "wakeup_events",
772 "bp_type",
773 "bp_addr",
774 "bp_len",
775 NULL
776 };
777 u64 sample_period = 0;
778 u32 disabled = 0,
779 inherit = 0,
780 pinned = 0,
781 exclusive = 0,
782 exclude_user = 0,
783 exclude_kernel = 0,
784 exclude_hv = 0,
785 exclude_idle = 0,
786 mmap = 0,
787 context_switch = 0,
788 comm = 0,
789 freq = 1,
790 inherit_stat = 0,
791 enable_on_exec = 0,
792 task = 0,
793 watermark = 0,
794 precise_ip = 0,
795 mmap_data = 0,
796 sample_id_all = 1;
797 int idx = 0;
798
799 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
800 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
801 &attr.type, &attr.config, &attr.sample_freq,
802 &sample_period, &attr.sample_type,
803 &attr.read_format, &disabled, &inherit,
804 &pinned, &exclusive, &exclude_user,
805 &exclude_kernel, &exclude_hv, &exclude_idle,
806 &mmap, &context_switch, &comm, &freq, &inherit_stat,
807 &enable_on_exec, &task, &watermark,
808 &precise_ip, &mmap_data, &sample_id_all,
809 &attr.wakeup_events, &attr.bp_type,
810 &attr.bp_addr, &attr.bp_len, &idx))
811 return -1;
812
813 /* union... */
814 if (sample_period != 0) {
815 if (attr.sample_freq != 0)
816 return -1; /* FIXME: throw right exception */
817 attr.sample_period = sample_period;
818 }
819
820 /* Bitfields */
821 attr.disabled = disabled;
822 attr.inherit = inherit;
823 attr.pinned = pinned;
824 attr.exclusive = exclusive;
825 attr.exclude_user = exclude_user;
826 attr.exclude_kernel = exclude_kernel;
827 attr.exclude_hv = exclude_hv;
828 attr.exclude_idle = exclude_idle;
829 attr.mmap = mmap;
830 attr.context_switch = context_switch;
831 attr.comm = comm;
832 attr.freq = freq;
833 attr.inherit_stat = inherit_stat;
834 attr.enable_on_exec = enable_on_exec;
835 attr.task = task;
836 attr.watermark = watermark;
837 attr.precise_ip = precise_ip;
838 attr.mmap_data = mmap_data;
839 attr.sample_id_all = sample_id_all;
840 attr.size = sizeof(attr);
841
842 evsel__init(&pevsel->evsel, &attr, idx);
843 return 0;
844 }
845
pyrf_evsel__delete(struct pyrf_evsel * pevsel)846 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
847 {
848 evsel__exit(&pevsel->evsel);
849 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
850 }
851
pyrf_evsel__open(struct pyrf_evsel * pevsel,PyObject * args,PyObject * kwargs)852 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
853 PyObject *args, PyObject *kwargs)
854 {
855 struct evsel *evsel = &pevsel->evsel;
856 struct perf_cpu_map *cpus = NULL;
857 struct perf_thread_map *threads = NULL;
858 PyObject *pcpus = NULL, *pthreads = NULL;
859 int group = 0, inherit = 0;
860 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
861
862 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
863 &pcpus, &pthreads, &group, &inherit))
864 return NULL;
865
866 if (pthreads != NULL)
867 threads = ((struct pyrf_thread_map *)pthreads)->threads;
868
869 if (pcpus != NULL)
870 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
871
872 evsel->core.attr.inherit = inherit;
873 /*
874 * This will group just the fds for this single evsel, to group
875 * multiple events, use evlist.open().
876 */
877 if (evsel__open(evsel, cpus, threads) < 0) {
878 PyErr_SetFromErrno(PyExc_OSError);
879 return NULL;
880 }
881
882 Py_INCREF(Py_None);
883 return Py_None;
884 }
885
pyrf_evsel__cpus(struct pyrf_evsel * pevsel)886 static PyObject *pyrf_evsel__cpus(struct pyrf_evsel *pevsel)
887 {
888 struct pyrf_cpu_map *pcpu_map = PyObject_New(struct pyrf_cpu_map, &pyrf_cpu_map__type);
889
890 if (pcpu_map)
891 pcpu_map->cpus = perf_cpu_map__get(pevsel->evsel.core.cpus);
892
893 return (PyObject *)pcpu_map;
894 }
895
pyrf_evsel__threads(struct pyrf_evsel * pevsel)896 static PyObject *pyrf_evsel__threads(struct pyrf_evsel *pevsel)
897 {
898 struct pyrf_thread_map *pthread_map =
899 PyObject_New(struct pyrf_thread_map, &pyrf_thread_map__type);
900
901 if (pthread_map)
902 pthread_map->threads = perf_thread_map__get(pevsel->evsel.core.threads);
903
904 return (PyObject *)pthread_map;
905 }
906
907 /*
908 * Ensure evsel's counts and prev_raw_counts are allocated, the latter
909 * used by tool PMUs to compute the cumulative count as expected by
910 * stat's process_counter_values.
911 */
evsel__ensure_counts(struct evsel * evsel)912 static int evsel__ensure_counts(struct evsel *evsel)
913 {
914 int nthreads, ncpus;
915
916 if (evsel->counts != NULL)
917 return 0;
918
919 nthreads = perf_thread_map__nr(evsel->core.threads);
920 ncpus = perf_cpu_map__nr(evsel->core.cpus);
921
922 evsel->counts = perf_counts__new(ncpus, nthreads);
923 if (evsel->counts == NULL)
924 return -ENOMEM;
925
926 evsel->prev_raw_counts = perf_counts__new(ncpus, nthreads);
927 if (evsel->prev_raw_counts == NULL)
928 return -ENOMEM;
929
930 return 0;
931 }
932
pyrf_evsel__read(struct pyrf_evsel * pevsel,PyObject * args,PyObject * kwargs)933 static PyObject *pyrf_evsel__read(struct pyrf_evsel *pevsel,
934 PyObject *args, PyObject *kwargs)
935 {
936 struct evsel *evsel = &pevsel->evsel;
937 int cpu = 0, cpu_idx, thread = 0, thread_idx;
938 struct perf_counts_values *old_count, *new_count;
939 struct pyrf_counts_values *count_values = PyObject_New(struct pyrf_counts_values,
940 &pyrf_counts_values__type);
941
942 if (!count_values)
943 return NULL;
944
945 if (!PyArg_ParseTuple(args, "ii", &cpu, &thread))
946 return NULL;
947
948 cpu_idx = perf_cpu_map__idx(evsel->core.cpus, (struct perf_cpu){.cpu = cpu});
949 if (cpu_idx < 0) {
950 PyErr_Format(PyExc_TypeError, "CPU %d is not part of evsel's CPUs", cpu);
951 return NULL;
952 }
953 thread_idx = perf_thread_map__idx(evsel->core.threads, thread);
954 if (thread_idx < 0) {
955 PyErr_Format(PyExc_TypeError, "Thread %d is not part of evsel's threads",
956 thread);
957 return NULL;
958 }
959
960 if (evsel__ensure_counts(evsel))
961 return PyErr_NoMemory();
962
963 /* Set up pointers to the old and newly read counter values. */
964 old_count = perf_counts(evsel->prev_raw_counts, cpu_idx, thread_idx);
965 new_count = perf_counts(evsel->counts, cpu_idx, thread_idx);
966 /* Update the value in evsel->counts. */
967 evsel__read_counter(evsel, cpu_idx, thread_idx);
968 /* Copy the value and turn it into the delta from old_count. */
969 count_values->values = *new_count;
970 count_values->values.val -= old_count->val;
971 count_values->values.ena -= old_count->ena;
972 count_values->values.run -= old_count->run;
973 /* Save the new count over the old_count for the next read. */
974 *old_count = *new_count;
975 return (PyObject *)count_values;
976 }
977
pyrf_evsel__str(PyObject * self)978 static PyObject *pyrf_evsel__str(PyObject *self)
979 {
980 struct pyrf_evsel *pevsel = (void *)self;
981 struct evsel *evsel = &pevsel->evsel;
982
983 return PyUnicode_FromFormat("evsel(%s/%s/)", evsel__pmu_name(evsel), evsel__name(evsel));
984 }
985
986 static PyMethodDef pyrf_evsel__methods[] = {
987 {
988 .ml_name = "open",
989 .ml_meth = (PyCFunction)pyrf_evsel__open,
990 .ml_flags = METH_VARARGS | METH_KEYWORDS,
991 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
992 },
993 {
994 .ml_name = "cpus",
995 .ml_meth = (PyCFunction)pyrf_evsel__cpus,
996 .ml_flags = METH_NOARGS,
997 .ml_doc = PyDoc_STR("CPUs the event is to be used with.")
998 },
999 {
1000 .ml_name = "threads",
1001 .ml_meth = (PyCFunction)pyrf_evsel__threads,
1002 .ml_flags = METH_NOARGS,
1003 .ml_doc = PyDoc_STR("threads the event is to be used with.")
1004 },
1005 {
1006 .ml_name = "read",
1007 .ml_meth = (PyCFunction)pyrf_evsel__read,
1008 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1009 .ml_doc = PyDoc_STR("read counters")
1010 },
1011 { .ml_name = NULL, }
1012 };
1013
1014 #define evsel_member_def(member, ptype, help) \
1015 { #member, ptype, \
1016 offsetof(struct pyrf_evsel, evsel.member), \
1017 0, help }
1018
1019 #define evsel_attr_member_def(member, ptype, help) \
1020 { #member, ptype, \
1021 offsetof(struct pyrf_evsel, evsel.core.attr.member), \
1022 0, help }
1023
1024 static PyMemberDef pyrf_evsel__members[] = {
1025 evsel_member_def(tracking, T_BOOL, "tracking event."),
1026 evsel_attr_member_def(type, T_UINT, "attribute type."),
1027 evsel_attr_member_def(size, T_UINT, "attribute size."),
1028 evsel_attr_member_def(config, T_ULONGLONG, "attribute config."),
1029 evsel_attr_member_def(sample_period, T_ULONGLONG, "attribute sample_period."),
1030 evsel_attr_member_def(sample_type, T_ULONGLONG, "attribute sample_type."),
1031 evsel_attr_member_def(read_format, T_ULONGLONG, "attribute read_format."),
1032 evsel_attr_member_def(wakeup_events, T_UINT, "attribute wakeup_events."),
1033 { .name = NULL, },
1034 };
1035
1036 static const char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
1037
1038 static PyTypeObject pyrf_evsel__type = {
1039 PyVarObject_HEAD_INIT(NULL, 0)
1040 .tp_name = "perf.evsel",
1041 .tp_basicsize = sizeof(struct pyrf_evsel),
1042 .tp_dealloc = (destructor)pyrf_evsel__delete,
1043 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1044 .tp_doc = pyrf_evsel__doc,
1045 .tp_members = pyrf_evsel__members,
1046 .tp_methods = pyrf_evsel__methods,
1047 .tp_init = (initproc)pyrf_evsel__init,
1048 .tp_str = pyrf_evsel__str,
1049 .tp_repr = pyrf_evsel__str,
1050 };
1051
pyrf_evsel__setup_types(void)1052 static int pyrf_evsel__setup_types(void)
1053 {
1054 pyrf_evsel__type.tp_new = PyType_GenericNew;
1055 return PyType_Ready(&pyrf_evsel__type);
1056 }
1057
1058 struct pyrf_evlist {
1059 PyObject_HEAD
1060
1061 struct evlist evlist;
1062 };
1063
pyrf_evlist__init(struct pyrf_evlist * pevlist,PyObject * args,PyObject * kwargs __maybe_unused)1064 static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
1065 PyObject *args, PyObject *kwargs __maybe_unused)
1066 {
1067 PyObject *pcpus = NULL, *pthreads = NULL;
1068 struct perf_cpu_map *cpus;
1069 struct perf_thread_map *threads;
1070
1071 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
1072 return -1;
1073
1074 threads = ((struct pyrf_thread_map *)pthreads)->threads;
1075 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
1076 evlist__init(&pevlist->evlist, cpus, threads);
1077 return 0;
1078 }
1079
pyrf_evlist__delete(struct pyrf_evlist * pevlist)1080 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
1081 {
1082 evlist__exit(&pevlist->evlist);
1083 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
1084 }
1085
pyrf_evlist__all_cpus(struct pyrf_evlist * pevlist)1086 static PyObject *pyrf_evlist__all_cpus(struct pyrf_evlist *pevlist)
1087 {
1088 struct pyrf_cpu_map *pcpu_map = PyObject_New(struct pyrf_cpu_map, &pyrf_cpu_map__type);
1089
1090 if (pcpu_map)
1091 pcpu_map->cpus = perf_cpu_map__get(pevlist->evlist.core.all_cpus);
1092
1093 return (PyObject *)pcpu_map;
1094 }
1095
pyrf_evlist__mmap(struct pyrf_evlist * pevlist,PyObject * args,PyObject * kwargs)1096 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
1097 PyObject *args, PyObject *kwargs)
1098 {
1099 struct evlist *evlist = &pevlist->evlist;
1100 static char *kwlist[] = { "pages", "overwrite", NULL };
1101 int pages = 128, overwrite = false;
1102
1103 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
1104 &pages, &overwrite))
1105 return NULL;
1106
1107 if (evlist__mmap(evlist, pages) < 0) {
1108 PyErr_SetFromErrno(PyExc_OSError);
1109 return NULL;
1110 }
1111
1112 Py_INCREF(Py_None);
1113 return Py_None;
1114 }
1115
pyrf_evlist__poll(struct pyrf_evlist * pevlist,PyObject * args,PyObject * kwargs)1116 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
1117 PyObject *args, PyObject *kwargs)
1118 {
1119 struct evlist *evlist = &pevlist->evlist;
1120 static char *kwlist[] = { "timeout", NULL };
1121 int timeout = -1, n;
1122
1123 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
1124 return NULL;
1125
1126 n = evlist__poll(evlist, timeout);
1127 if (n < 0) {
1128 PyErr_SetFromErrno(PyExc_OSError);
1129 return NULL;
1130 }
1131
1132 return Py_BuildValue("i", n);
1133 }
1134
pyrf_evlist__get_pollfd(struct pyrf_evlist * pevlist,PyObject * args __maybe_unused,PyObject * kwargs __maybe_unused)1135 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
1136 PyObject *args __maybe_unused,
1137 PyObject *kwargs __maybe_unused)
1138 {
1139 struct evlist *evlist = &pevlist->evlist;
1140 PyObject *list = PyList_New(0);
1141 int i;
1142
1143 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
1144 PyObject *file;
1145 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
1146 NULL, NULL, NULL, 0);
1147 if (file == NULL)
1148 goto free_list;
1149
1150 if (PyList_Append(list, file) != 0) {
1151 Py_DECREF(file);
1152 goto free_list;
1153 }
1154
1155 Py_DECREF(file);
1156 }
1157
1158 return list;
1159 free_list:
1160 return PyErr_NoMemory();
1161 }
1162
1163
pyrf_evlist__add(struct pyrf_evlist * pevlist,PyObject * args,PyObject * kwargs __maybe_unused)1164 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
1165 PyObject *args,
1166 PyObject *kwargs __maybe_unused)
1167 {
1168 struct evlist *evlist = &pevlist->evlist;
1169 PyObject *pevsel;
1170 struct evsel *evsel;
1171
1172 if (!PyArg_ParseTuple(args, "O", &pevsel))
1173 return NULL;
1174
1175 Py_INCREF(pevsel);
1176 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
1177 evsel->core.idx = evlist->core.nr_entries;
1178 evlist__add(evlist, evsel);
1179
1180 return Py_BuildValue("i", evlist->core.nr_entries);
1181 }
1182
get_md(struct evlist * evlist,int cpu)1183 static struct mmap *get_md(struct evlist *evlist, int cpu)
1184 {
1185 int i;
1186
1187 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1188 struct mmap *md = &evlist->mmap[i];
1189
1190 if (md->core.cpu.cpu == cpu)
1191 return md;
1192 }
1193
1194 return NULL;
1195 }
1196
pyrf_evlist__read_on_cpu(struct pyrf_evlist * pevlist,PyObject * args,PyObject * kwargs)1197 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1198 PyObject *args, PyObject *kwargs)
1199 {
1200 struct evlist *evlist = &pevlist->evlist;
1201 union perf_event *event;
1202 int sample_id_all = 1, cpu;
1203 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1204 struct mmap *md;
1205 int err;
1206
1207 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1208 &cpu, &sample_id_all))
1209 return NULL;
1210
1211 md = get_md(evlist, cpu);
1212 if (!md)
1213 return NULL;
1214
1215 if (perf_mmap__read_init(&md->core) < 0)
1216 goto end;
1217
1218 event = perf_mmap__read_event(&md->core);
1219 if (event != NULL) {
1220 PyObject *pyevent = pyrf_event__new(event);
1221 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1222 struct evsel *evsel;
1223
1224 if (pyevent == NULL)
1225 return PyErr_NoMemory();
1226
1227 evsel = evlist__event2evsel(evlist, event);
1228 if (!evsel) {
1229 Py_DECREF(pyevent);
1230 Py_INCREF(Py_None);
1231 return Py_None;
1232 }
1233
1234 pevent->evsel = evsel;
1235
1236 perf_mmap__consume(&md->core);
1237
1238 err = evsel__parse_sample(evsel, &pevent->event, &pevent->sample);
1239 if (err) {
1240 Py_DECREF(pyevent);
1241 return PyErr_Format(PyExc_OSError,
1242 "perf: can't parse sample, err=%d", err);
1243 }
1244
1245 return pyevent;
1246 }
1247 end:
1248 Py_INCREF(Py_None);
1249 return Py_None;
1250 }
1251
pyrf_evlist__open(struct pyrf_evlist * pevlist,PyObject * args,PyObject * kwargs)1252 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1253 PyObject *args, PyObject *kwargs)
1254 {
1255 struct evlist *evlist = &pevlist->evlist;
1256
1257 if (evlist__open(evlist) < 0) {
1258 PyErr_SetFromErrno(PyExc_OSError);
1259 return NULL;
1260 }
1261
1262 Py_INCREF(Py_None);
1263 return Py_None;
1264 }
1265
pyrf_evlist__close(struct pyrf_evlist * pevlist)1266 static PyObject *pyrf_evlist__close(struct pyrf_evlist *pevlist)
1267 {
1268 struct evlist *evlist = &pevlist->evlist;
1269
1270 evlist__close(evlist);
1271
1272 Py_INCREF(Py_None);
1273 return Py_None;
1274 }
1275
pyrf_evlist__config(struct pyrf_evlist * pevlist)1276 static PyObject *pyrf_evlist__config(struct pyrf_evlist *pevlist)
1277 {
1278 struct record_opts opts = {
1279 .sample_time = true,
1280 .mmap_pages = UINT_MAX,
1281 .user_freq = UINT_MAX,
1282 .user_interval = ULLONG_MAX,
1283 .freq = 4000,
1284 .target = {
1285 .uses_mmap = true,
1286 .default_per_cpu = true,
1287 },
1288 .nr_threads_synthesize = 1,
1289 .ctl_fd = -1,
1290 .ctl_fd_ack = -1,
1291 .no_buffering = true,
1292 .no_inherit = true,
1293 };
1294 struct evlist *evlist = &pevlist->evlist;
1295
1296 evlist__config(evlist, &opts, &callchain_param);
1297 Py_INCREF(Py_None);
1298 return Py_None;
1299 }
1300
pyrf_evlist__disable(struct pyrf_evlist * pevlist)1301 static PyObject *pyrf_evlist__disable(struct pyrf_evlist *pevlist)
1302 {
1303 evlist__disable(&pevlist->evlist);
1304 Py_INCREF(Py_None);
1305 return Py_None;
1306 }
1307
pyrf_evlist__enable(struct pyrf_evlist * pevlist)1308 static PyObject *pyrf_evlist__enable(struct pyrf_evlist *pevlist)
1309 {
1310 evlist__enable(&pevlist->evlist);
1311 Py_INCREF(Py_None);
1312 return Py_None;
1313 }
1314
1315 static PyMethodDef pyrf_evlist__methods[] = {
1316 {
1317 .ml_name = "all_cpus",
1318 .ml_meth = (PyCFunction)pyrf_evlist__all_cpus,
1319 .ml_flags = METH_NOARGS,
1320 .ml_doc = PyDoc_STR("CPU map union of all evsel CPU maps.")
1321 },
1322 {
1323 .ml_name = "mmap",
1324 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1325 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1326 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1327 },
1328 {
1329 .ml_name = "open",
1330 .ml_meth = (PyCFunction)pyrf_evlist__open,
1331 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1332 .ml_doc = PyDoc_STR("open the file descriptors.")
1333 },
1334 {
1335 .ml_name = "close",
1336 .ml_meth = (PyCFunction)pyrf_evlist__close,
1337 .ml_flags = METH_NOARGS,
1338 .ml_doc = PyDoc_STR("close the file descriptors.")
1339 },
1340 {
1341 .ml_name = "poll",
1342 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1343 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1344 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1345 },
1346 {
1347 .ml_name = "get_pollfd",
1348 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1349 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1350 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1351 },
1352 {
1353 .ml_name = "add",
1354 .ml_meth = (PyCFunction)pyrf_evlist__add,
1355 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1356 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1357 },
1358 {
1359 .ml_name = "read_on_cpu",
1360 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1361 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1362 .ml_doc = PyDoc_STR("reads an event.")
1363 },
1364 {
1365 .ml_name = "config",
1366 .ml_meth = (PyCFunction)pyrf_evlist__config,
1367 .ml_flags = METH_NOARGS,
1368 .ml_doc = PyDoc_STR("Apply default record options to the evlist.")
1369 },
1370 {
1371 .ml_name = "disable",
1372 .ml_meth = (PyCFunction)pyrf_evlist__disable,
1373 .ml_flags = METH_NOARGS,
1374 .ml_doc = PyDoc_STR("Disable the evsels in the evlist.")
1375 },
1376 {
1377 .ml_name = "enable",
1378 .ml_meth = (PyCFunction)pyrf_evlist__enable,
1379 .ml_flags = METH_NOARGS,
1380 .ml_doc = PyDoc_STR("Enable the evsels in the evlist.")
1381 },
1382 { .ml_name = NULL, }
1383 };
1384
pyrf_evlist__length(PyObject * obj)1385 static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1386 {
1387 struct pyrf_evlist *pevlist = (void *)obj;
1388
1389 return pevlist->evlist.core.nr_entries;
1390 }
1391
pyrf_evlist__item(PyObject * obj,Py_ssize_t i)1392 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1393 {
1394 struct pyrf_evlist *pevlist = (void *)obj;
1395 struct evsel *pos;
1396
1397 if (i >= pevlist->evlist.core.nr_entries) {
1398 PyErr_SetString(PyExc_IndexError, "Index out of range");
1399 return NULL;
1400 }
1401
1402 evlist__for_each_entry(&pevlist->evlist, pos) {
1403 if (i-- == 0)
1404 break;
1405 }
1406
1407 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1408 }
1409
pyrf_evlist__str(PyObject * self)1410 static PyObject *pyrf_evlist__str(PyObject *self)
1411 {
1412 struct pyrf_evlist *pevlist = (void *)self;
1413 struct evsel *pos;
1414 struct strbuf sb = STRBUF_INIT;
1415 bool first = true;
1416 PyObject *result;
1417
1418 strbuf_addstr(&sb, "evlist([");
1419 evlist__for_each_entry(&pevlist->evlist, pos) {
1420 if (!first)
1421 strbuf_addch(&sb, ',');
1422 if (!pos->pmu)
1423 strbuf_addstr(&sb, evsel__name(pos));
1424 else
1425 strbuf_addf(&sb, "%s/%s/", pos->pmu->name, evsel__name(pos));
1426 first = false;
1427 }
1428 strbuf_addstr(&sb, "])");
1429 result = PyUnicode_FromString(sb.buf);
1430 strbuf_release(&sb);
1431 return result;
1432 }
1433
1434 static PySequenceMethods pyrf_evlist__sequence_methods = {
1435 .sq_length = pyrf_evlist__length,
1436 .sq_item = pyrf_evlist__item,
1437 };
1438
1439 static const char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1440
1441 static PyTypeObject pyrf_evlist__type = {
1442 PyVarObject_HEAD_INIT(NULL, 0)
1443 .tp_name = "perf.evlist",
1444 .tp_basicsize = sizeof(struct pyrf_evlist),
1445 .tp_dealloc = (destructor)pyrf_evlist__delete,
1446 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1447 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1448 .tp_doc = pyrf_evlist__doc,
1449 .tp_methods = pyrf_evlist__methods,
1450 .tp_init = (initproc)pyrf_evlist__init,
1451 .tp_repr = pyrf_evlist__str,
1452 .tp_str = pyrf_evlist__str,
1453 };
1454
pyrf_evlist__setup_types(void)1455 static int pyrf_evlist__setup_types(void)
1456 {
1457 pyrf_evlist__type.tp_new = PyType_GenericNew;
1458 return PyType_Ready(&pyrf_evlist__type);
1459 }
1460
1461 #define PERF_CONST(name) { #name, PERF_##name }
1462
1463 struct perf_constant {
1464 const char *name;
1465 int value;
1466 };
1467
1468 static const struct perf_constant perf__constants[] = {
1469 PERF_CONST(TYPE_HARDWARE),
1470 PERF_CONST(TYPE_SOFTWARE),
1471 PERF_CONST(TYPE_TRACEPOINT),
1472 PERF_CONST(TYPE_HW_CACHE),
1473 PERF_CONST(TYPE_RAW),
1474 PERF_CONST(TYPE_BREAKPOINT),
1475
1476 PERF_CONST(COUNT_HW_CPU_CYCLES),
1477 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1478 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1479 PERF_CONST(COUNT_HW_CACHE_MISSES),
1480 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1481 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1482 PERF_CONST(COUNT_HW_BUS_CYCLES),
1483 PERF_CONST(COUNT_HW_CACHE_L1D),
1484 PERF_CONST(COUNT_HW_CACHE_L1I),
1485 PERF_CONST(COUNT_HW_CACHE_LL),
1486 PERF_CONST(COUNT_HW_CACHE_DTLB),
1487 PERF_CONST(COUNT_HW_CACHE_ITLB),
1488 PERF_CONST(COUNT_HW_CACHE_BPU),
1489 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1490 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1491 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1492 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1493 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1494
1495 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1496 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1497
1498 PERF_CONST(COUNT_SW_CPU_CLOCK),
1499 PERF_CONST(COUNT_SW_TASK_CLOCK),
1500 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1501 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1502 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1503 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1504 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1505 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1506 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1507 PERF_CONST(COUNT_SW_DUMMY),
1508
1509 PERF_CONST(SAMPLE_IP),
1510 PERF_CONST(SAMPLE_TID),
1511 PERF_CONST(SAMPLE_TIME),
1512 PERF_CONST(SAMPLE_ADDR),
1513 PERF_CONST(SAMPLE_READ),
1514 PERF_CONST(SAMPLE_CALLCHAIN),
1515 PERF_CONST(SAMPLE_ID),
1516 PERF_CONST(SAMPLE_CPU),
1517 PERF_CONST(SAMPLE_PERIOD),
1518 PERF_CONST(SAMPLE_STREAM_ID),
1519 PERF_CONST(SAMPLE_RAW),
1520
1521 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1522 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1523 PERF_CONST(FORMAT_ID),
1524 PERF_CONST(FORMAT_GROUP),
1525
1526 PERF_CONST(RECORD_MMAP),
1527 PERF_CONST(RECORD_LOST),
1528 PERF_CONST(RECORD_COMM),
1529 PERF_CONST(RECORD_EXIT),
1530 PERF_CONST(RECORD_THROTTLE),
1531 PERF_CONST(RECORD_UNTHROTTLE),
1532 PERF_CONST(RECORD_FORK),
1533 PERF_CONST(RECORD_READ),
1534 PERF_CONST(RECORD_SAMPLE),
1535 PERF_CONST(RECORD_MMAP2),
1536 PERF_CONST(RECORD_AUX),
1537 PERF_CONST(RECORD_ITRACE_START),
1538 PERF_CONST(RECORD_LOST_SAMPLES),
1539 PERF_CONST(RECORD_SWITCH),
1540 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1541
1542 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1543 { .name = NULL, },
1544 };
1545
pyrf__tracepoint(struct pyrf_evsel * pevsel,PyObject * args,PyObject * kwargs)1546 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1547 PyObject *args, PyObject *kwargs)
1548 {
1549 #ifndef HAVE_LIBTRACEEVENT
1550 return NULL;
1551 #else
1552 struct tep_event *tp_format;
1553 static char *kwlist[] = { "sys", "name", NULL };
1554 char *sys = NULL;
1555 char *name = NULL;
1556
1557 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1558 &sys, &name))
1559 return NULL;
1560
1561 tp_format = trace_event__tp_format(sys, name);
1562 if (IS_ERR(tp_format))
1563 return PyLong_FromLong(-1);
1564
1565 return PyLong_FromLong(tp_format->id);
1566 #endif // HAVE_LIBTRACEEVENT
1567 }
1568
pyrf_evsel__from_evsel(struct evsel * evsel)1569 static PyObject *pyrf_evsel__from_evsel(struct evsel *evsel)
1570 {
1571 struct pyrf_evsel *pevsel = PyObject_New(struct pyrf_evsel, &pyrf_evsel__type);
1572
1573 if (!pevsel)
1574 return NULL;
1575
1576 memset(&pevsel->evsel, 0, sizeof(pevsel->evsel));
1577 evsel__init(&pevsel->evsel, &evsel->core.attr, evsel->core.idx);
1578
1579 evsel__clone(&pevsel->evsel, evsel);
1580 if (evsel__is_group_leader(evsel))
1581 evsel__set_leader(&pevsel->evsel, &pevsel->evsel);
1582 return (PyObject *)pevsel;
1583 }
1584
evlist__pos(struct evlist * evlist,struct evsel * evsel)1585 static int evlist__pos(struct evlist *evlist, struct evsel *evsel)
1586 {
1587 struct evsel *pos;
1588 int idx = 0;
1589
1590 evlist__for_each_entry(evlist, pos) {
1591 if (evsel == pos)
1592 return idx;
1593 idx++;
1594 }
1595 return -1;
1596 }
1597
evlist__at(struct evlist * evlist,int idx)1598 static struct evsel *evlist__at(struct evlist *evlist, int idx)
1599 {
1600 struct evsel *pos;
1601 int idx2 = 0;
1602
1603 evlist__for_each_entry(evlist, pos) {
1604 if (idx == idx2)
1605 return pos;
1606 idx2++;
1607 }
1608 return NULL;
1609 }
1610
pyrf_evlist__from_evlist(struct evlist * evlist)1611 static PyObject *pyrf_evlist__from_evlist(struct evlist *evlist)
1612 {
1613 struct pyrf_evlist *pevlist = PyObject_New(struct pyrf_evlist, &pyrf_evlist__type);
1614 struct evsel *pos;
1615 struct rb_node *node;
1616
1617 if (!pevlist)
1618 return NULL;
1619
1620 memset(&pevlist->evlist, 0, sizeof(pevlist->evlist));
1621 evlist__init(&pevlist->evlist, evlist->core.all_cpus, evlist->core.threads);
1622 evlist__for_each_entry(evlist, pos) {
1623 struct pyrf_evsel *pevsel = (void *)pyrf_evsel__from_evsel(pos);
1624
1625 evlist__add(&pevlist->evlist, &pevsel->evsel);
1626 }
1627 evlist__for_each_entry(&pevlist->evlist, pos) {
1628 struct evsel *leader = evsel__leader(pos);
1629
1630 if (pos != leader) {
1631 int idx = evlist__pos(evlist, leader);
1632
1633 if (idx >= 0)
1634 evsel__set_leader(pos, evlist__at(&pevlist->evlist, idx));
1635 else if (leader == NULL)
1636 evsel__set_leader(pos, pos);
1637 }
1638 }
1639 metricgroup__copy_metric_events(&pevlist->evlist, /*cgrp=*/NULL,
1640 &pevlist->evlist.metric_events,
1641 &evlist->metric_events);
1642 for (node = rb_first_cached(&pevlist->evlist.metric_events.entries); node;
1643 node = rb_next(node)) {
1644 struct metric_event *me = container_of(node, struct metric_event, nd);
1645 struct list_head *mpos;
1646 int idx = evlist__pos(evlist, me->evsel);
1647
1648 if (idx >= 0)
1649 me->evsel = evlist__at(&pevlist->evlist, idx);
1650 list_for_each(mpos, &me->head) {
1651 struct metric_expr *e = container_of(mpos, struct metric_expr, nd);
1652
1653 for (int j = 0; e->metric_events[j]; j++) {
1654 idx = evlist__pos(evlist, e->metric_events[j]);
1655 if (idx >= 0)
1656 e->metric_events[j] = evlist__at(&pevlist->evlist, idx);
1657 }
1658 }
1659 }
1660 return (PyObject *)pevlist;
1661 }
1662
pyrf__parse_events(PyObject * self,PyObject * args)1663 static PyObject *pyrf__parse_events(PyObject *self, PyObject *args)
1664 {
1665 const char *input;
1666 struct evlist evlist = {};
1667 struct parse_events_error err;
1668 PyObject *result;
1669 PyObject *pcpus = NULL, *pthreads = NULL;
1670 struct perf_cpu_map *cpus;
1671 struct perf_thread_map *threads;
1672
1673 if (!PyArg_ParseTuple(args, "s|OO", &input, &pcpus, &pthreads))
1674 return NULL;
1675
1676 threads = pthreads ? ((struct pyrf_thread_map *)pthreads)->threads : NULL;
1677 cpus = pcpus ? ((struct pyrf_cpu_map *)pcpus)->cpus : NULL;
1678
1679 parse_events_error__init(&err);
1680 evlist__init(&evlist, cpus, threads);
1681 if (parse_events(&evlist, input, &err)) {
1682 parse_events_error__print(&err, input);
1683 PyErr_SetFromErrno(PyExc_OSError);
1684 return NULL;
1685 }
1686 result = pyrf_evlist__from_evlist(&evlist);
1687 evlist__exit(&evlist);
1688 return result;
1689 }
1690
1691 static PyMethodDef perf__methods[] = {
1692 {
1693 .ml_name = "tracepoint",
1694 .ml_meth = (PyCFunction) pyrf__tracepoint,
1695 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1696 .ml_doc = PyDoc_STR("Get tracepoint config.")
1697 },
1698 {
1699 .ml_name = "parse_events",
1700 .ml_meth = (PyCFunction) pyrf__parse_events,
1701 .ml_flags = METH_VARARGS,
1702 .ml_doc = PyDoc_STR("Parse a string of events and return an evlist.")
1703 },
1704 { .ml_name = NULL, }
1705 };
1706
PyInit_perf(void)1707 PyMODINIT_FUNC PyInit_perf(void)
1708 {
1709 PyObject *obj;
1710 int i;
1711 PyObject *dict;
1712 static struct PyModuleDef moduledef = {
1713 PyModuleDef_HEAD_INIT,
1714 "perf", /* m_name */
1715 "", /* m_doc */
1716 -1, /* m_size */
1717 perf__methods, /* m_methods */
1718 NULL, /* m_reload */
1719 NULL, /* m_traverse */
1720 NULL, /* m_clear */
1721 NULL, /* m_free */
1722 };
1723 PyObject *module = PyModule_Create(&moduledef);
1724
1725 if (module == NULL ||
1726 pyrf_event__setup_types() < 0 ||
1727 pyrf_evlist__setup_types() < 0 ||
1728 pyrf_evsel__setup_types() < 0 ||
1729 pyrf_thread_map__setup_types() < 0 ||
1730 pyrf_cpu_map__setup_types() < 0 ||
1731 pyrf_counts_values__setup_types() < 0)
1732 return module;
1733
1734 /* The page_size is placed in util object. */
1735 page_size = sysconf(_SC_PAGE_SIZE);
1736
1737 Py_INCREF(&pyrf_evlist__type);
1738 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1739
1740 Py_INCREF(&pyrf_evsel__type);
1741 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1742
1743 Py_INCREF(&pyrf_mmap_event__type);
1744 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1745
1746 Py_INCREF(&pyrf_lost_event__type);
1747 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1748
1749 Py_INCREF(&pyrf_comm_event__type);
1750 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1751
1752 Py_INCREF(&pyrf_task_event__type);
1753 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1754
1755 Py_INCREF(&pyrf_throttle_event__type);
1756 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1757
1758 Py_INCREF(&pyrf_task_event__type);
1759 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1760
1761 Py_INCREF(&pyrf_read_event__type);
1762 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1763
1764 Py_INCREF(&pyrf_sample_event__type);
1765 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1766
1767 Py_INCREF(&pyrf_context_switch_event__type);
1768 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1769
1770 Py_INCREF(&pyrf_thread_map__type);
1771 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1772
1773 Py_INCREF(&pyrf_cpu_map__type);
1774 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1775
1776 Py_INCREF(&pyrf_counts_values__type);
1777 PyModule_AddObject(module, "counts_values", (PyObject *)&pyrf_counts_values__type);
1778
1779 dict = PyModule_GetDict(module);
1780 if (dict == NULL)
1781 goto error;
1782
1783 for (i = 0; perf__constants[i].name != NULL; i++) {
1784 obj = PyLong_FromLong(perf__constants[i].value);
1785 if (obj == NULL)
1786 goto error;
1787 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1788 Py_DECREF(obj);
1789 }
1790
1791 error:
1792 if (PyErr_Occurred())
1793 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1794 return module;
1795 }
1796