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