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