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