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Merge tag 'block-5.9-2020-08-14' of git://git.kernel.dk/linux-block
[linux/fpc-iii.git] / tools / perf / util / python.c
blob75a9b1d62bba7e5f4cd4f23261d561304c2990dd
1 // SPDX-License-Identifier: GPL-2.0
2 #include <Python.h>
3 #include <structmember.h>
4 #include <inttypes.h>
5 #include <poll.h>
6 #include <linux/err.h>
7 #include <perf/cpumap.h>
8 #include <traceevent/event-parse.h>
9 #include <perf/mmap.h>
10 #include "evlist.h"
11 #include "callchain.h"
12 #include "evsel.h"
13 #include "event.h"
14 #include "print_binary.h"
15 #include "thread_map.h"
16 #include "trace-event.h"
17 #include "mmap.h"
18 #include "util/env.h"
19 #include <internal/lib.h>
20 #include "../perf-sys.h"
21
22 #if PY_MAJOR_VERSION < 3
23 #define _PyUnicode_FromString(arg) \
24 PyString_FromString(arg)
25 #define _PyUnicode_AsString(arg) \
26 PyString_AsString(arg)
27 #define _PyUnicode_FromFormat(...) \
28 PyString_FromFormat(__VA_ARGS__)
29 #define _PyLong_FromLong(arg) \
30 PyInt_FromLong(arg)
31
32 #else
33
34 #define _PyUnicode_FromString(arg) \
35 PyUnicode_FromString(arg)
36 #define _PyUnicode_FromFormat(...) \
37 PyUnicode_FromFormat(__VA_ARGS__)
38 #define _PyLong_FromLong(arg) \
39 PyLong_FromLong(arg)
40 #endif
41
42 #ifndef Py_TYPE
43 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
44 #endif
45
46 /*
47 * Provide these two so that we don't have to link against callchain.c and
48 * start dragging hist.c, etc.
49 */
50 struct callchain_param callchain_param;
51
52 int parse_callchain_record(const char *arg __maybe_unused,
53 struct callchain_param *param __maybe_unused)
54 {
55 return 0;
56 }
57
58 /*
59 * Add this one here not to drag util/env.c
60 */
61 struct perf_env perf_env;
62
63 /*
64 * Support debug printing even though util/debug.c is not linked. That means
65 * implementing 'verbose' and 'eprintf'.
66 */
67 int verbose;
68 int debug_peo_args;
69
70 int eprintf(int level, int var, const char *fmt, ...);
71
72 int eprintf(int level, int var, const char *fmt, ...)
73 {
74 va_list args;
75 int ret = 0;
76
77 if (var >= level) {
78 va_start(args, fmt);
79 ret = vfprintf(stderr, fmt, args);
80 va_end(args);
81 }
82
83 return ret;
84 }
85
86 /* Define PyVarObject_HEAD_INIT for python 2.5 */
87 #ifndef PyVarObject_HEAD_INIT
88 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
89 #endif
90
91 #if PY_MAJOR_VERSION < 3
92 PyMODINIT_FUNC initperf(void);
93 #else
94 PyMODINIT_FUNC PyInit_perf(void);
95 #endif
96
97 #define member_def(type, member, ptype, help) \
98 { #member, ptype, \
99 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
100 0, help }
101
102 #define sample_member_def(name, member, ptype, help) \
103 { #name, ptype, \
104 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
105 0, help }
106
107 struct pyrf_event {
108 PyObject_HEAD
109 struct evsel *evsel;
110 struct perf_sample sample;
111 union perf_event event;
112 };
113
114 #define sample_members \
115 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
116 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
117 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
118 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
119 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
120 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
121 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
122 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
123 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
124
125 static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
126
127 static PyMemberDef pyrf_mmap_event__members[] = {
128 sample_members
129 member_def(perf_event_header, type, T_UINT, "event type"),
130 member_def(perf_event_header, misc, T_UINT, "event misc"),
131 member_def(perf_record_mmap, pid, T_UINT, "event pid"),
132 member_def(perf_record_mmap, tid, T_UINT, "event tid"),
133 member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
134 member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
135 member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
136 member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
137 { .name = NULL, },
138 };
139
140 static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
141 {
142 PyObject *ret;
143 char *s;
144
145 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
146 "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
147 "filename: %s }",
148 pevent->event.mmap.pid, pevent->event.mmap.tid,
149 pevent->event.mmap.start, pevent->event.mmap.len,
150 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
151 ret = PyErr_NoMemory();
152 } else {
153 ret = _PyUnicode_FromString(s);
154 free(s);
155 }
156 return ret;
157 }
158
159 static PyTypeObject pyrf_mmap_event__type = {
160 PyVarObject_HEAD_INIT(NULL, 0)
161 .tp_name = "perf.mmap_event",
162 .tp_basicsize = sizeof(struct pyrf_event),
163 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
164 .tp_doc = pyrf_mmap_event__doc,
165 .tp_members = pyrf_mmap_event__members,
166 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
167 };
168
169 static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
170
171 static PyMemberDef pyrf_task_event__members[] = {
172 sample_members
173 member_def(perf_event_header, type, T_UINT, "event type"),
174 member_def(perf_record_fork, pid, T_UINT, "event pid"),
175 member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
176 member_def(perf_record_fork, tid, T_UINT, "event tid"),
177 member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
178 member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
179 { .name = NULL, },
180 };
181
182 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
183 {
184 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
185 "ptid: %u, time: %" PRI_lu64 "}",
186 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
187 pevent->event.fork.pid,
188 pevent->event.fork.ppid,
189 pevent->event.fork.tid,
190 pevent->event.fork.ptid,
191 pevent->event.fork.time);
192 }
193
194 static PyTypeObject pyrf_task_event__type = {
195 PyVarObject_HEAD_INIT(NULL, 0)
196 .tp_name = "perf.task_event",
197 .tp_basicsize = sizeof(struct pyrf_event),
198 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
199 .tp_doc = pyrf_task_event__doc,
200 .tp_members = pyrf_task_event__members,
201 .tp_repr = (reprfunc)pyrf_task_event__repr,
202 };
203
204 static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
205
206 static PyMemberDef pyrf_comm_event__members[] = {
207 sample_members
208 member_def(perf_event_header, type, T_UINT, "event type"),
209 member_def(perf_record_comm, pid, T_UINT, "event pid"),
210 member_def(perf_record_comm, tid, T_UINT, "event tid"),
211 member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
212 { .name = NULL, },
213 };
214
215 static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
216 {
217 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
218 pevent->event.comm.pid,
219 pevent->event.comm.tid,
220 pevent->event.comm.comm);
221 }
222
223 static PyTypeObject pyrf_comm_event__type = {
224 PyVarObject_HEAD_INIT(NULL, 0)
225 .tp_name = "perf.comm_event",
226 .tp_basicsize = sizeof(struct pyrf_event),
227 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
228 .tp_doc = pyrf_comm_event__doc,
229 .tp_members = pyrf_comm_event__members,
230 .tp_repr = (reprfunc)pyrf_comm_event__repr,
231 };
232
233 static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
234
235 static PyMemberDef pyrf_throttle_event__members[] = {
236 sample_members
237 member_def(perf_event_header, type, T_UINT, "event type"),
238 member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
239 member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
240 member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
241 { .name = NULL, },
242 };
243
244 static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
245 {
246 struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
247
248 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
249 ", stream_id: %" PRI_lu64 " }",
250 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
251 te->time, te->id, te->stream_id);
252 }
253
254 static PyTypeObject pyrf_throttle_event__type = {
255 PyVarObject_HEAD_INIT(NULL, 0)
256 .tp_name = "perf.throttle_event",
257 .tp_basicsize = sizeof(struct pyrf_event),
258 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
259 .tp_doc = pyrf_throttle_event__doc,
260 .tp_members = pyrf_throttle_event__members,
261 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
262 };
263
264 static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
265
266 static PyMemberDef pyrf_lost_event__members[] = {
267 sample_members
268 member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
269 member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
270 { .name = NULL, },
271 };
272
273 static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
274 {
275 PyObject *ret;
276 char *s;
277
278 if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
279 "lost: %#" PRI_lx64 " }",
280 pevent->event.lost.id, pevent->event.lost.lost) < 0) {
281 ret = PyErr_NoMemory();
282 } else {
283 ret = _PyUnicode_FromString(s);
284 free(s);
285 }
286 return ret;
287 }
288
289 static PyTypeObject pyrf_lost_event__type = {
290 PyVarObject_HEAD_INIT(NULL, 0)
291 .tp_name = "perf.lost_event",
292 .tp_basicsize = sizeof(struct pyrf_event),
293 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
294 .tp_doc = pyrf_lost_event__doc,
295 .tp_members = pyrf_lost_event__members,
296 .tp_repr = (reprfunc)pyrf_lost_event__repr,
297 };
298
299 static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
300
301 static PyMemberDef pyrf_read_event__members[] = {
302 sample_members
303 member_def(perf_record_read, pid, T_UINT, "event pid"),
304 member_def(perf_record_read, tid, T_UINT, "event tid"),
305 { .name = NULL, },
306 };
307
308 static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
309 {
310 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
311 pevent->event.read.pid,
312 pevent->event.read.tid);
313 /*
314 * FIXME: return the array of read values,
315 * making this method useful ;-)
316 */
317 }
318
319 static PyTypeObject pyrf_read_event__type = {
320 PyVarObject_HEAD_INIT(NULL, 0)
321 .tp_name = "perf.read_event",
322 .tp_basicsize = sizeof(struct pyrf_event),
323 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
324 .tp_doc = pyrf_read_event__doc,
325 .tp_members = pyrf_read_event__members,
326 .tp_repr = (reprfunc)pyrf_read_event__repr,
327 };
328
329 static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
330
331 static PyMemberDef pyrf_sample_event__members[] = {
332 sample_members
333 member_def(perf_event_header, type, T_UINT, "event type"),
334 { .name = NULL, },
335 };
336
337 static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
338 {
339 PyObject *ret;
340 char *s;
341
342 if (asprintf(&s, "{ type: sample }") < 0) {
343 ret = PyErr_NoMemory();
344 } else {
345 ret = _PyUnicode_FromString(s);
346 free(s);
347 }
348 return ret;
349 }
350
351 static bool is_tracepoint(struct pyrf_event *pevent)
352 {
353 return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
354 }
355
356 static PyObject*
357 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
358 {
359 struct tep_handle *pevent = field->event->tep;
360 void *data = pe->sample.raw_data;
361 PyObject *ret = NULL;
362 unsigned long long val;
363 unsigned int offset, len;
364
365 if (field->flags & TEP_FIELD_IS_ARRAY) {
366 offset = field->offset;
367 len = field->size;
368 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
369 val = tep_read_number(pevent, data + offset, len);
370 offset = val;
371 len = offset >> 16;
372 offset &= 0xffff;
373 }
374 if (field->flags & TEP_FIELD_IS_STRING &&
375 is_printable_array(data + offset, len)) {
376 ret = _PyUnicode_FromString((char *)data + offset);
377 } else {
378 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
379 field->flags &= ~TEP_FIELD_IS_STRING;
380 }
381 } else {
382 val = tep_read_number(pevent, data + field->offset,
383 field->size);
384 if (field->flags & TEP_FIELD_IS_POINTER)
385 ret = PyLong_FromUnsignedLong((unsigned long) val);
386 else if (field->flags & TEP_FIELD_IS_SIGNED)
387 ret = PyLong_FromLong((long) val);
388 else
389 ret = PyLong_FromUnsignedLong((unsigned long) val);
390 }
391
392 return ret;
393 }
394
395 static PyObject*
396 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
397 {
398 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
399 struct evsel *evsel = pevent->evsel;
400 struct tep_format_field *field;
401
402 if (!evsel->tp_format) {
403 struct tep_event *tp_format;
404
405 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
406 if (!tp_format)
407 return NULL;
408
409 evsel->tp_format = tp_format;
410 }
411
412 field = tep_find_any_field(evsel->tp_format, str);
413 if (!field)
414 return NULL;
415
416 return tracepoint_field(pevent, field);
417 }
418
419 static PyObject*
420 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
421 {
422 PyObject *obj = NULL;
423
424 if (is_tracepoint(pevent))
425 obj = get_tracepoint_field(pevent, attr_name);
426
427 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
428 }
429
430 static PyTypeObject pyrf_sample_event__type = {
431 PyVarObject_HEAD_INIT(NULL, 0)
432 .tp_name = "perf.sample_event",
433 .tp_basicsize = sizeof(struct pyrf_event),
434 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
435 .tp_doc = pyrf_sample_event__doc,
436 .tp_members = pyrf_sample_event__members,
437 .tp_repr = (reprfunc)pyrf_sample_event__repr,
438 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
439 };
440
441 static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
442
443 static PyMemberDef pyrf_context_switch_event__members[] = {
444 sample_members
445 member_def(perf_event_header, type, T_UINT, "event type"),
446 member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
447 member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
448 { .name = NULL, },
449 };
450
451 static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
452 {
453 PyObject *ret;
454 char *s;
455
456 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
457 pevent->event.context_switch.next_prev_pid,
458 pevent->event.context_switch.next_prev_tid,
459 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
460 ret = PyErr_NoMemory();
461 } else {
462 ret = _PyUnicode_FromString(s);
463 free(s);
464 }
465 return ret;
466 }
467
468 static PyTypeObject pyrf_context_switch_event__type = {
469 PyVarObject_HEAD_INIT(NULL, 0)
470 .tp_name = "perf.context_switch_event",
471 .tp_basicsize = sizeof(struct pyrf_event),
472 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
473 .tp_doc = pyrf_context_switch_event__doc,
474 .tp_members = pyrf_context_switch_event__members,
475 .tp_repr = (reprfunc)pyrf_context_switch_event__repr,
476 };
477
478 static int pyrf_event__setup_types(void)
479 {
480 int err;
481 pyrf_mmap_event__type.tp_new =
482 pyrf_task_event__type.tp_new =
483 pyrf_comm_event__type.tp_new =
484 pyrf_lost_event__type.tp_new =
485 pyrf_read_event__type.tp_new =
486 pyrf_sample_event__type.tp_new =
487 pyrf_context_switch_event__type.tp_new =
488 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
489 err = PyType_Ready(&pyrf_mmap_event__type);
490 if (err < 0)
491 goto out;
492 err = PyType_Ready(&pyrf_lost_event__type);
493 if (err < 0)
494 goto out;
495 err = PyType_Ready(&pyrf_task_event__type);
496 if (err < 0)
497 goto out;
498 err = PyType_Ready(&pyrf_comm_event__type);
499 if (err < 0)
500 goto out;
501 err = PyType_Ready(&pyrf_throttle_event__type);
502 if (err < 0)
503 goto out;
504 err = PyType_Ready(&pyrf_read_event__type);
505 if (err < 0)
506 goto out;
507 err = PyType_Ready(&pyrf_sample_event__type);
508 if (err < 0)
509 goto out;
510 err = PyType_Ready(&pyrf_context_switch_event__type);
511 if (err < 0)
512 goto out;
513 out:
514 return err;
515 }
516
517 static PyTypeObject *pyrf_event__type[] = {
518 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
519 [PERF_RECORD_LOST] = &pyrf_lost_event__type,
520 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
521 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
522 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
523 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
524 [PERF_RECORD_FORK] = &pyrf_task_event__type,
525 [PERF_RECORD_READ] = &pyrf_read_event__type,
526 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
527 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
528 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
529 };
530
531 static PyObject *pyrf_event__new(union perf_event *event)
532 {
533 struct pyrf_event *pevent;
534 PyTypeObject *ptype;
535
536 if ((event->header.type < PERF_RECORD_MMAP ||
537 event->header.type > PERF_RECORD_SAMPLE) &&
538 !(event->header.type == PERF_RECORD_SWITCH ||
539 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
540 return NULL;
541
542 ptype = pyrf_event__type[event->header.type];
543 pevent = PyObject_New(struct pyrf_event, ptype);
544 if (pevent != NULL)
545 memcpy(&pevent->event, event, event->header.size);
546 return (PyObject *)pevent;
547 }
548
549 struct pyrf_cpu_map {
550 PyObject_HEAD
551
552 struct perf_cpu_map *cpus;
553 };
554
555 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
556 PyObject *args, PyObject *kwargs)
557 {
558 static char *kwlist[] = { "cpustr", NULL };
559 char *cpustr = NULL;
560
561 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
562 kwlist, &cpustr))
563 return -1;
564
565 pcpus->cpus = perf_cpu_map__new(cpustr);
566 if (pcpus->cpus == NULL)
567 return -1;
568 return 0;
569 }
570
571 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
572 {
573 perf_cpu_map__put(pcpus->cpus);
574 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
575 }
576
577 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
578 {
579 struct pyrf_cpu_map *pcpus = (void *)obj;
580
581 return pcpus->cpus->nr;
582 }
583
584 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
585 {
586 struct pyrf_cpu_map *pcpus = (void *)obj;
587
588 if (i >= pcpus->cpus->nr)
589 return NULL;
590
591 return Py_BuildValue("i", pcpus->cpus->map[i]);
592 }
593
594 static PySequenceMethods pyrf_cpu_map__sequence_methods = {
595 .sq_length = pyrf_cpu_map__length,
596 .sq_item = pyrf_cpu_map__item,
597 };
598
599 static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
600
601 static PyTypeObject pyrf_cpu_map__type = {
602 PyVarObject_HEAD_INIT(NULL, 0)
603 .tp_name = "perf.cpu_map",
604 .tp_basicsize = sizeof(struct pyrf_cpu_map),
605 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
606 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
607 .tp_doc = pyrf_cpu_map__doc,
608 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
609 .tp_init = (initproc)pyrf_cpu_map__init,
610 };
611
612 static int pyrf_cpu_map__setup_types(void)
613 {
614 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
615 return PyType_Ready(&pyrf_cpu_map__type);
616 }
617
618 struct pyrf_thread_map {
619 PyObject_HEAD
620
621 struct perf_thread_map *threads;
622 };
623
624 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
625 PyObject *args, PyObject *kwargs)
626 {
627 static char *kwlist[] = { "pid", "tid", "uid", NULL };
628 int pid = -1, tid = -1, uid = UINT_MAX;
629
630 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
631 kwlist, &pid, &tid, &uid))
632 return -1;
633
634 pthreads->threads = thread_map__new(pid, tid, uid);
635 if (pthreads->threads == NULL)
636 return -1;
637 return 0;
638 }
639
640 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
641 {
642 perf_thread_map__put(pthreads->threads);
643 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
644 }
645
646 static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
647 {
648 struct pyrf_thread_map *pthreads = (void *)obj;
649
650 return pthreads->threads->nr;
651 }
652
653 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
654 {
655 struct pyrf_thread_map *pthreads = (void *)obj;
656
657 if (i >= pthreads->threads->nr)
658 return NULL;
659
660 return Py_BuildValue("i", pthreads->threads->map[i]);
661 }
662
663 static PySequenceMethods pyrf_thread_map__sequence_methods = {
664 .sq_length = pyrf_thread_map__length,
665 .sq_item = pyrf_thread_map__item,
666 };
667
668 static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
669
670 static PyTypeObject pyrf_thread_map__type = {
671 PyVarObject_HEAD_INIT(NULL, 0)
672 .tp_name = "perf.thread_map",
673 .tp_basicsize = sizeof(struct pyrf_thread_map),
674 .tp_dealloc = (destructor)pyrf_thread_map__delete,
675 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
676 .tp_doc = pyrf_thread_map__doc,
677 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
678 .tp_init = (initproc)pyrf_thread_map__init,
679 };
680
681 static int pyrf_thread_map__setup_types(void)
682 {
683 pyrf_thread_map__type.tp_new = PyType_GenericNew;
684 return PyType_Ready(&pyrf_thread_map__type);
685 }
686
687 struct pyrf_evsel {
688 PyObject_HEAD
689
690 struct evsel evsel;
691 };
692
693 static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
694 PyObject *args, PyObject *kwargs)
695 {
696 struct perf_event_attr attr = {
697 .type = PERF_TYPE_HARDWARE,
698 .config = PERF_COUNT_HW_CPU_CYCLES,
699 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
700 };
701 static char *kwlist[] = {
702 "type",
703 "config",
704 "sample_freq",
705 "sample_period",
706 "sample_type",
707 "read_format",
708 "disabled",
709 "inherit",
710 "pinned",
711 "exclusive",
712 "exclude_user",
713 "exclude_kernel",
714 "exclude_hv",
715 "exclude_idle",
716 "mmap",
717 "context_switch",
718 "comm",
719 "freq",
720 "inherit_stat",
721 "enable_on_exec",
722 "task",
723 "watermark",
724 "precise_ip",
725 "mmap_data",
726 "sample_id_all",
727 "wakeup_events",
728 "bp_type",
729 "bp_addr",
730 "bp_len",
731 NULL
732 };
733 u64 sample_period = 0;
734 u32 disabled = 0,
735 inherit = 0,
736 pinned = 0,
737 exclusive = 0,
738 exclude_user = 0,
739 exclude_kernel = 0,
740 exclude_hv = 0,
741 exclude_idle = 0,
742 mmap = 0,
743 context_switch = 0,
744 comm = 0,
745 freq = 1,
746 inherit_stat = 0,
747 enable_on_exec = 0,
748 task = 0,
749 watermark = 0,
750 precise_ip = 0,
751 mmap_data = 0,
752 sample_id_all = 1;
753 int idx = 0;
754
755 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
756 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
757 &attr.type, &attr.config, &attr.sample_freq,
758 &sample_period, &attr.sample_type,
759 &attr.read_format, &disabled, &inherit,
760 &pinned, &exclusive, &exclude_user,
761 &exclude_kernel, &exclude_hv, &exclude_idle,
762 &mmap, &context_switch, &comm, &freq, &inherit_stat,
763 &enable_on_exec, &task, &watermark,
764 &precise_ip, &mmap_data, &sample_id_all,
765 &attr.wakeup_events, &attr.bp_type,
766 &attr.bp_addr, &attr.bp_len, &idx))
767 return -1;
768
769 /* union... */
770 if (sample_period != 0) {
771 if (attr.sample_freq != 0)
772 return -1; /* FIXME: throw right exception */
773 attr.sample_period = sample_period;
774 }
775
776 /* Bitfields */
777 attr.disabled = disabled;
778 attr.inherit = inherit;
779 attr.pinned = pinned;
780 attr.exclusive = exclusive;
781 attr.exclude_user = exclude_user;
782 attr.exclude_kernel = exclude_kernel;
783 attr.exclude_hv = exclude_hv;
784 attr.exclude_idle = exclude_idle;
785 attr.mmap = mmap;
786 attr.context_switch = context_switch;
787 attr.comm = comm;
788 attr.freq = freq;
789 attr.inherit_stat = inherit_stat;
790 attr.enable_on_exec = enable_on_exec;
791 attr.task = task;
792 attr.watermark = watermark;
793 attr.precise_ip = precise_ip;
794 attr.mmap_data = mmap_data;
795 attr.sample_id_all = sample_id_all;
796 attr.size = sizeof(attr);
797
798 evsel__init(&pevsel->evsel, &attr, idx);
799 return 0;
800 }
801
802 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
803 {
804 evsel__exit(&pevsel->evsel);
805 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
806 }
807
808 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
809 PyObject *args, PyObject *kwargs)
810 {
811 struct evsel *evsel = &pevsel->evsel;
812 struct perf_cpu_map *cpus = NULL;
813 struct perf_thread_map *threads = NULL;
814 PyObject *pcpus = NULL, *pthreads = NULL;
815 int group = 0, inherit = 0;
816 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
817
818 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
819 &pcpus, &pthreads, &group, &inherit))
820 return NULL;
821
822 if (pthreads != NULL)
823 threads = ((struct pyrf_thread_map *)pthreads)->threads;
824
825 if (pcpus != NULL)
826 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
827
828 evsel->core.attr.inherit = inherit;
829 /*
830 * This will group just the fds for this single evsel, to group
831 * multiple events, use evlist.open().
832 */
833 if (evsel__open(evsel, cpus, threads) < 0) {
834 PyErr_SetFromErrno(PyExc_OSError);
835 return NULL;
836 }
837
838 Py_INCREF(Py_None);
839 return Py_None;
840 }
841
842 static PyMethodDef pyrf_evsel__methods[] = {
843 {
844 .ml_name = "open",
845 .ml_meth = (PyCFunction)pyrf_evsel__open,
846 .ml_flags = METH_VARARGS | METH_KEYWORDS,
847 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
848 },
849 { .ml_name = NULL, }
850 };
851
852 static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
853
854 static PyTypeObject pyrf_evsel__type = {
855 PyVarObject_HEAD_INIT(NULL, 0)
856 .tp_name = "perf.evsel",
857 .tp_basicsize = sizeof(struct pyrf_evsel),
858 .tp_dealloc = (destructor)pyrf_evsel__delete,
859 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
860 .tp_doc = pyrf_evsel__doc,
861 .tp_methods = pyrf_evsel__methods,
862 .tp_init = (initproc)pyrf_evsel__init,
863 };
864
865 static int pyrf_evsel__setup_types(void)
866 {
867 pyrf_evsel__type.tp_new = PyType_GenericNew;
868 return PyType_Ready(&pyrf_evsel__type);
869 }
870
871 struct pyrf_evlist {
872 PyObject_HEAD
873
874 struct evlist evlist;
875 };
876
877 static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
878 PyObject *args, PyObject *kwargs __maybe_unused)
879 {
880 PyObject *pcpus = NULL, *pthreads = NULL;
881 struct perf_cpu_map *cpus;
882 struct perf_thread_map *threads;
883
884 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
885 return -1;
886
887 threads = ((struct pyrf_thread_map *)pthreads)->threads;
888 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
889 evlist__init(&pevlist->evlist, cpus, threads);
890 return 0;
891 }
892
893 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
894 {
895 evlist__exit(&pevlist->evlist);
896 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
897 }
898
899 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
900 PyObject *args, PyObject *kwargs)
901 {
902 struct evlist *evlist = &pevlist->evlist;
903 static char *kwlist[] = { "pages", "overwrite", NULL };
904 int pages = 128, overwrite = false;
905
906 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
907 &pages, &overwrite))
908 return NULL;
909
910 if (evlist__mmap(evlist, pages) < 0) {
911 PyErr_SetFromErrno(PyExc_OSError);
912 return NULL;
913 }
914
915 Py_INCREF(Py_None);
916 return Py_None;
917 }
918
919 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
920 PyObject *args, PyObject *kwargs)
921 {
922 struct evlist *evlist = &pevlist->evlist;
923 static char *kwlist[] = { "timeout", NULL };
924 int timeout = -1, n;
925
926 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
927 return NULL;
928
929 n = evlist__poll(evlist, timeout);
930 if (n < 0) {
931 PyErr_SetFromErrno(PyExc_OSError);
932 return NULL;
933 }
934
935 return Py_BuildValue("i", n);
936 }
937
938 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
939 PyObject *args __maybe_unused,
940 PyObject *kwargs __maybe_unused)
941 {
942 struct evlist *evlist = &pevlist->evlist;
943 PyObject *list = PyList_New(0);
944 int i;
945
946 for (i = 0; i < evlist->core.pollfd.nr; ++i) {
947 PyObject *file;
948 #if PY_MAJOR_VERSION < 3
949 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
950
951 if (fp == NULL)
952 goto free_list;
953
954 file = PyFile_FromFile(fp, "perf", "r", NULL);
955 #else
956 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
957 NULL, NULL, NULL, 0);
958 #endif
959 if (file == NULL)
960 goto free_list;
961
962 if (PyList_Append(list, file) != 0) {
963 Py_DECREF(file);
964 goto free_list;
965 }
966
967 Py_DECREF(file);
968 }
969
970 return list;
971 free_list:
972 return PyErr_NoMemory();
973 }
974
975
976 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
977 PyObject *args,
978 PyObject *kwargs __maybe_unused)
979 {
980 struct evlist *evlist = &pevlist->evlist;
981 PyObject *pevsel;
982 struct evsel *evsel;
983
984 if (!PyArg_ParseTuple(args, "O", &pevsel))
985 return NULL;
986
987 Py_INCREF(pevsel);
988 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
989 evsel->idx = evlist->core.nr_entries;
990 evlist__add(evlist, evsel);
991
992 return Py_BuildValue("i", evlist->core.nr_entries);
993 }
994
995 static struct mmap *get_md(struct evlist *evlist, int cpu)
996 {
997 int i;
998
999 for (i = 0; i < evlist->core.nr_mmaps; i++) {
1000 struct mmap *md = &evlist->mmap[i];
1001
1002 if (md->core.cpu == cpu)
1003 return md;
1004 }
1005
1006 return NULL;
1007 }
1008
1009 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1010 PyObject *args, PyObject *kwargs)
1011 {
1012 struct evlist *evlist = &pevlist->evlist;
1013 union perf_event *event;
1014 int sample_id_all = 1, cpu;
1015 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1016 struct mmap *md;
1017 int err;
1018
1019 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1020 &cpu, &sample_id_all))
1021 return NULL;
1022
1023 md = get_md(evlist, cpu);
1024 if (!md)
1025 return NULL;
1026
1027 if (perf_mmap__read_init(&md->core) < 0)
1028 goto end;
1029
1030 event = perf_mmap__read_event(&md->core);
1031 if (event != NULL) {
1032 PyObject *pyevent = pyrf_event__new(event);
1033 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1034 struct evsel *evsel;
1035
1036 if (pyevent == NULL)
1037 return PyErr_NoMemory();
1038
1039 evsel = perf_evlist__event2evsel(evlist, event);
1040 if (!evsel) {
1041 Py_INCREF(Py_None);
1042 return Py_None;
1043 }
1044
1045 pevent->evsel = evsel;
1046
1047 err = evsel__parse_sample(evsel, event, &pevent->sample);
1048
1049 /* Consume the even only after we parsed it out. */
1050 perf_mmap__consume(&md->core);
1051
1052 if (err)
1053 return PyErr_Format(PyExc_OSError,
1054 "perf: can't parse sample, err=%d", err);
1055 return pyevent;
1056 }
1057 end:
1058 Py_INCREF(Py_None);
1059 return Py_None;
1060 }
1061
1062 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1063 PyObject *args, PyObject *kwargs)
1064 {
1065 struct evlist *evlist = &pevlist->evlist;
1066 int group = 0;
1067 static char *kwlist[] = { "group", NULL };
1068
1069 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1070 return NULL;
1071
1072 if (group)
1073 perf_evlist__set_leader(evlist);
1074
1075 if (evlist__open(evlist) < 0) {
1076 PyErr_SetFromErrno(PyExc_OSError);
1077 return NULL;
1078 }
1079
1080 Py_INCREF(Py_None);
1081 return Py_None;
1082 }
1083
1084 static PyMethodDef pyrf_evlist__methods[] = {
1085 {
1086 .ml_name = "mmap",
1087 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
1088 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1089 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
1090 },
1091 {
1092 .ml_name = "open",
1093 .ml_meth = (PyCFunction)pyrf_evlist__open,
1094 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1095 .ml_doc = PyDoc_STR("open the file descriptors.")
1096 },
1097 {
1098 .ml_name = "poll",
1099 .ml_meth = (PyCFunction)pyrf_evlist__poll,
1100 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1101 .ml_doc = PyDoc_STR("poll the file descriptor table.")
1102 },
1103 {
1104 .ml_name = "get_pollfd",
1105 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
1106 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1107 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
1108 },
1109 {
1110 .ml_name = "add",
1111 .ml_meth = (PyCFunction)pyrf_evlist__add,
1112 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1113 .ml_doc = PyDoc_STR("adds an event selector to the list.")
1114 },
1115 {
1116 .ml_name = "read_on_cpu",
1117 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
1118 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1119 .ml_doc = PyDoc_STR("reads an event.")
1120 },
1121 { .ml_name = NULL, }
1122 };
1123
1124 static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1125 {
1126 struct pyrf_evlist *pevlist = (void *)obj;
1127
1128 return pevlist->evlist.core.nr_entries;
1129 }
1130
1131 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1132 {
1133 struct pyrf_evlist *pevlist = (void *)obj;
1134 struct evsel *pos;
1135
1136 if (i >= pevlist->evlist.core.nr_entries)
1137 return NULL;
1138
1139 evlist__for_each_entry(&pevlist->evlist, pos) {
1140 if (i-- == 0)
1141 break;
1142 }
1143
1144 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1145 }
1146
1147 static PySequenceMethods pyrf_evlist__sequence_methods = {
1148 .sq_length = pyrf_evlist__length,
1149 .sq_item = pyrf_evlist__item,
1150 };
1151
1152 static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1153
1154 static PyTypeObject pyrf_evlist__type = {
1155 PyVarObject_HEAD_INIT(NULL, 0)
1156 .tp_name = "perf.evlist",
1157 .tp_basicsize = sizeof(struct pyrf_evlist),
1158 .tp_dealloc = (destructor)pyrf_evlist__delete,
1159 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1160 .tp_as_sequence = &pyrf_evlist__sequence_methods,
1161 .tp_doc = pyrf_evlist__doc,
1162 .tp_methods = pyrf_evlist__methods,
1163 .tp_init = (initproc)pyrf_evlist__init,
1164 };
1165
1166 static int pyrf_evlist__setup_types(void)
1167 {
1168 pyrf_evlist__type.tp_new = PyType_GenericNew;
1169 return PyType_Ready(&pyrf_evlist__type);
1170 }
1171
1172 #define PERF_CONST(name) { #name, PERF_##name }
1173
1174 static struct {
1175 const char *name;
1176 int value;
1177 } perf__constants[] = {
1178 PERF_CONST(TYPE_HARDWARE),
1179 PERF_CONST(TYPE_SOFTWARE),
1180 PERF_CONST(TYPE_TRACEPOINT),
1181 PERF_CONST(TYPE_HW_CACHE),
1182 PERF_CONST(TYPE_RAW),
1183 PERF_CONST(TYPE_BREAKPOINT),
1184
1185 PERF_CONST(COUNT_HW_CPU_CYCLES),
1186 PERF_CONST(COUNT_HW_INSTRUCTIONS),
1187 PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1188 PERF_CONST(COUNT_HW_CACHE_MISSES),
1189 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1190 PERF_CONST(COUNT_HW_BRANCH_MISSES),
1191 PERF_CONST(COUNT_HW_BUS_CYCLES),
1192 PERF_CONST(COUNT_HW_CACHE_L1D),
1193 PERF_CONST(COUNT_HW_CACHE_L1I),
1194 PERF_CONST(COUNT_HW_CACHE_LL),
1195 PERF_CONST(COUNT_HW_CACHE_DTLB),
1196 PERF_CONST(COUNT_HW_CACHE_ITLB),
1197 PERF_CONST(COUNT_HW_CACHE_BPU),
1198 PERF_CONST(COUNT_HW_CACHE_OP_READ),
1199 PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1200 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1201 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1202 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1203
1204 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1205 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1206
1207 PERF_CONST(COUNT_SW_CPU_CLOCK),
1208 PERF_CONST(COUNT_SW_TASK_CLOCK),
1209 PERF_CONST(COUNT_SW_PAGE_FAULTS),
1210 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1211 PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1212 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1213 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1214 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1215 PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1216 PERF_CONST(COUNT_SW_DUMMY),
1217
1218 PERF_CONST(SAMPLE_IP),
1219 PERF_CONST(SAMPLE_TID),
1220 PERF_CONST(SAMPLE_TIME),
1221 PERF_CONST(SAMPLE_ADDR),
1222 PERF_CONST(SAMPLE_READ),
1223 PERF_CONST(SAMPLE_CALLCHAIN),
1224 PERF_CONST(SAMPLE_ID),
1225 PERF_CONST(SAMPLE_CPU),
1226 PERF_CONST(SAMPLE_PERIOD),
1227 PERF_CONST(SAMPLE_STREAM_ID),
1228 PERF_CONST(SAMPLE_RAW),
1229
1230 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1231 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1232 PERF_CONST(FORMAT_ID),
1233 PERF_CONST(FORMAT_GROUP),
1234
1235 PERF_CONST(RECORD_MMAP),
1236 PERF_CONST(RECORD_LOST),
1237 PERF_CONST(RECORD_COMM),
1238 PERF_CONST(RECORD_EXIT),
1239 PERF_CONST(RECORD_THROTTLE),
1240 PERF_CONST(RECORD_UNTHROTTLE),
1241 PERF_CONST(RECORD_FORK),
1242 PERF_CONST(RECORD_READ),
1243 PERF_CONST(RECORD_SAMPLE),
1244 PERF_CONST(RECORD_MMAP2),
1245 PERF_CONST(RECORD_AUX),
1246 PERF_CONST(RECORD_ITRACE_START),
1247 PERF_CONST(RECORD_LOST_SAMPLES),
1248 PERF_CONST(RECORD_SWITCH),
1249 PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1250
1251 PERF_CONST(RECORD_MISC_SWITCH_OUT),
1252 { .name = NULL, },
1253 };
1254
1255 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1256 PyObject *args, PyObject *kwargs)
1257 {
1258 struct tep_event *tp_format;
1259 static char *kwlist[] = { "sys", "name", NULL };
1260 char *sys = NULL;
1261 char *name = NULL;
1262
1263 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1264 &sys, &name))
1265 return NULL;
1266
1267 tp_format = trace_event__tp_format(sys, name);
1268 if (IS_ERR(tp_format))
1269 return _PyLong_FromLong(-1);
1270
1271 return _PyLong_FromLong(tp_format->id);
1272 }
1273
1274 static PyMethodDef perf__methods[] = {
1275 {
1276 .ml_name = "tracepoint",
1277 .ml_meth = (PyCFunction) pyrf__tracepoint,
1278 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1279 .ml_doc = PyDoc_STR("Get tracepoint config.")
1280 },
1281 { .ml_name = NULL, }
1282 };
1283
1284 #if PY_MAJOR_VERSION < 3
1285 PyMODINIT_FUNC initperf(void)
1286 #else
1287 PyMODINIT_FUNC PyInit_perf(void)
1288 #endif
1289 {
1290 PyObject *obj;
1291 int i;
1292 PyObject *dict;
1293 #if PY_MAJOR_VERSION < 3
1294 PyObject *module = Py_InitModule("perf", perf__methods);
1295 #else
1296 static struct PyModuleDef moduledef = {
1297 PyModuleDef_HEAD_INIT,
1298 "perf", /* m_name */
1299 "", /* m_doc */
1300 -1, /* m_size */
1301 perf__methods, /* m_methods */
1302 NULL, /* m_reload */
1303 NULL, /* m_traverse */
1304 NULL, /* m_clear */
1305 NULL, /* m_free */
1306 };
1307 PyObject *module = PyModule_Create(&moduledef);
1308 #endif
1309
1310 if (module == NULL ||
1311 pyrf_event__setup_types() < 0 ||
1312 pyrf_evlist__setup_types() < 0 ||
1313 pyrf_evsel__setup_types() < 0 ||
1314 pyrf_thread_map__setup_types() < 0 ||
1315 pyrf_cpu_map__setup_types() < 0)
1316 #if PY_MAJOR_VERSION < 3
1317 return;
1318 #else
1319 return module;
1320 #endif
1321
1322 /* The page_size is placed in util object. */
1323 page_size = sysconf(_SC_PAGE_SIZE);
1324
1325 Py_INCREF(&pyrf_evlist__type);
1326 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1327
1328 Py_INCREF(&pyrf_evsel__type);
1329 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1330
1331 Py_INCREF(&pyrf_mmap_event__type);
1332 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1333
1334 Py_INCREF(&pyrf_lost_event__type);
1335 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1336
1337 Py_INCREF(&pyrf_comm_event__type);
1338 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1339
1340 Py_INCREF(&pyrf_task_event__type);
1341 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1342
1343 Py_INCREF(&pyrf_throttle_event__type);
1344 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1345
1346 Py_INCREF(&pyrf_task_event__type);
1347 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1348
1349 Py_INCREF(&pyrf_read_event__type);
1350 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1351
1352 Py_INCREF(&pyrf_sample_event__type);
1353 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1354
1355 Py_INCREF(&pyrf_context_switch_event__type);
1356 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1357
1358 Py_INCREF(&pyrf_thread_map__type);
1359 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1360
1361 Py_INCREF(&pyrf_cpu_map__type);
1362 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1363
1364 dict = PyModule_GetDict(module);
1365 if (dict == NULL)
1366 goto error;
1367
1368 for (i = 0; perf__constants[i].name != NULL; i++) {
1369 obj = _PyLong_FromLong(perf__constants[i].value);
1370 if (obj == NULL)
1371 goto error;
1372 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1373 Py_DECREF(obj);
1374 }
1375
1376 error:
1377 if (PyErr_Occurred())
1378 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1379 #if PY_MAJOR_VERSION >= 3
1380 return module;
1381 #endif
1382 }
1383
1384 /*
1385 * Dummy, to avoid dragging all the test_attr infrastructure in the python
1386 * binding.
1387 */
1388 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1389 int fd, int group_fd, unsigned long flags)
1390 {
1391 }
Linux with added FPC-III support