GNU Linux-libre 4.19.211-gnu1
[releases.git] / tools / perf / util / python.c
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 "evlist.h"
8 #include "callchain.h"
9 #include "evsel.h"
10 #include "event.h"
11 #include "cpumap.h"
12 #include "print_binary.h"
13 #include "thread_map.h"
14 #include "mmap.h"
15
16 #if PY_MAJOR_VERSION < 3
17 #define _PyUnicode_FromString(arg) \
18   PyString_FromString(arg)
19 #define _PyUnicode_AsString(arg) \
20   PyString_AsString(arg)
21 #define _PyUnicode_FromFormat(...) \
22   PyString_FromFormat(__VA_ARGS__)
23 #define _PyLong_FromLong(arg) \
24   PyInt_FromLong(arg)
25
26 #else
27
28 #define _PyUnicode_FromString(arg) \
29   PyUnicode_FromString(arg)
30 #define _PyUnicode_FromFormat(...) \
31   PyUnicode_FromFormat(__VA_ARGS__)
32 #define _PyLong_FromLong(arg) \
33   PyLong_FromLong(arg)
34 #endif
35
36 #ifndef Py_TYPE
37 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
38 #endif
39
40 /*
41  * Provide these two so that we don't have to link against callchain.c and
42  * start dragging hist.c, etc.
43  */
44 struct callchain_param callchain_param;
45
46 int parse_callchain_record(const char *arg __maybe_unused,
47                            struct callchain_param *param __maybe_unused)
48 {
49         return 0;
50 }
51
52 /*
53  * Support debug printing even though util/debug.c is not linked.  That means
54  * implementing 'verbose' and 'eprintf'.
55  */
56 int verbose;
57
58 int eprintf(int level, int var, const char *fmt, ...)
59 {
60         va_list args;
61         int ret = 0;
62
63         if (var >= level) {
64                 va_start(args, fmt);
65                 ret = vfprintf(stderr, fmt, args);
66                 va_end(args);
67         }
68
69         return ret;
70 }
71
72 /* Define PyVarObject_HEAD_INIT for python 2.5 */
73 #ifndef PyVarObject_HEAD_INIT
74 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
75 #endif
76
77 #if PY_MAJOR_VERSION < 3
78 PyMODINIT_FUNC initperf(void);
79 #else
80 PyMODINIT_FUNC PyInit_perf(void);
81 #endif
82
83 #define member_def(type, member, ptype, help) \
84         { #member, ptype, \
85           offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
86           0, help }
87
88 #define sample_member_def(name, member, ptype, help) \
89         { #name, ptype, \
90           offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
91           0, help }
92
93 struct pyrf_event {
94         PyObject_HEAD
95         struct perf_evsel *evsel;
96         struct perf_sample sample;
97         union perf_event   event;
98 };
99
100 #define sample_members \
101         sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"),                     \
102         sample_member_def(sample_pid, pid, T_INT, "event pid"),                  \
103         sample_member_def(sample_tid, tid, T_INT, "event tid"),                  \
104         sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"),            \
105         sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"),                 \
106         sample_member_def(sample_id, id, T_ULONGLONG, "event id"),                       \
107         sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
108         sample_member_def(sample_period, period, T_ULONGLONG, "event period"),           \
109         sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
110
111 static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
112
113 static PyMemberDef pyrf_mmap_event__members[] = {
114         sample_members
115         member_def(perf_event_header, type, T_UINT, "event type"),
116         member_def(perf_event_header, misc, T_UINT, "event misc"),
117         member_def(mmap_event, pid, T_UINT, "event pid"),
118         member_def(mmap_event, tid, T_UINT, "event tid"),
119         member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
120         member_def(mmap_event, len, T_ULONGLONG, "map length"),
121         member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
122         member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
123         { .name = NULL, },
124 };
125
126 static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
127 {
128         PyObject *ret;
129         char *s;
130
131         if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
132                          "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
133                          "filename: %s }",
134                      pevent->event.mmap.pid, pevent->event.mmap.tid,
135                      pevent->event.mmap.start, pevent->event.mmap.len,
136                      pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
137                 ret = PyErr_NoMemory();
138         } else {
139                 ret = _PyUnicode_FromString(s);
140                 free(s);
141         }
142         return ret;
143 }
144
145 static PyTypeObject pyrf_mmap_event__type = {
146         PyVarObject_HEAD_INIT(NULL, 0)
147         .tp_name        = "perf.mmap_event",
148         .tp_basicsize   = sizeof(struct pyrf_event),
149         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
150         .tp_doc         = pyrf_mmap_event__doc,
151         .tp_members     = pyrf_mmap_event__members,
152         .tp_repr        = (reprfunc)pyrf_mmap_event__repr,
153 };
154
155 static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
156
157 static PyMemberDef pyrf_task_event__members[] = {
158         sample_members
159         member_def(perf_event_header, type, T_UINT, "event type"),
160         member_def(fork_event, pid, T_UINT, "event pid"),
161         member_def(fork_event, ppid, T_UINT, "event ppid"),
162         member_def(fork_event, tid, T_UINT, "event tid"),
163         member_def(fork_event, ptid, T_UINT, "event ptid"),
164         member_def(fork_event, time, T_ULONGLONG, "timestamp"),
165         { .name = NULL, },
166 };
167
168 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
169 {
170         return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
171                                    "ptid: %u, time: %" PRIu64 "}",
172                                    pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
173                                    pevent->event.fork.pid,
174                                    pevent->event.fork.ppid,
175                                    pevent->event.fork.tid,
176                                    pevent->event.fork.ptid,
177                                    pevent->event.fork.time);
178 }
179
180 static PyTypeObject pyrf_task_event__type = {
181         PyVarObject_HEAD_INIT(NULL, 0)
182         .tp_name        = "perf.task_event",
183         .tp_basicsize   = sizeof(struct pyrf_event),
184         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
185         .tp_doc         = pyrf_task_event__doc,
186         .tp_members     = pyrf_task_event__members,
187         .tp_repr        = (reprfunc)pyrf_task_event__repr,
188 };
189
190 static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
191
192 static PyMemberDef pyrf_comm_event__members[] = {
193         sample_members
194         member_def(perf_event_header, type, T_UINT, "event type"),
195         member_def(comm_event, pid, T_UINT, "event pid"),
196         member_def(comm_event, tid, T_UINT, "event tid"),
197         member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
198         { .name = NULL, },
199 };
200
201 static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
202 {
203         return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
204                                    pevent->event.comm.pid,
205                                    pevent->event.comm.tid,
206                                    pevent->event.comm.comm);
207 }
208
209 static PyTypeObject pyrf_comm_event__type = {
210         PyVarObject_HEAD_INIT(NULL, 0)
211         .tp_name        = "perf.comm_event",
212         .tp_basicsize   = sizeof(struct pyrf_event),
213         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
214         .tp_doc         = pyrf_comm_event__doc,
215         .tp_members     = pyrf_comm_event__members,
216         .tp_repr        = (reprfunc)pyrf_comm_event__repr,
217 };
218
219 static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
220
221 static PyMemberDef pyrf_throttle_event__members[] = {
222         sample_members
223         member_def(perf_event_header, type, T_UINT, "event type"),
224         member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
225         member_def(throttle_event, id, T_ULONGLONG, "event id"),
226         member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
227         { .name = NULL, },
228 };
229
230 static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
231 {
232         struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
233
234         return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
235                                    ", stream_id: %" PRIu64 " }",
236                                    pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
237                                    te->time, te->id, te->stream_id);
238 }
239
240 static PyTypeObject pyrf_throttle_event__type = {
241         PyVarObject_HEAD_INIT(NULL, 0)
242         .tp_name        = "perf.throttle_event",
243         .tp_basicsize   = sizeof(struct pyrf_event),
244         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
245         .tp_doc         = pyrf_throttle_event__doc,
246         .tp_members     = pyrf_throttle_event__members,
247         .tp_repr        = (reprfunc)pyrf_throttle_event__repr,
248 };
249
250 static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
251
252 static PyMemberDef pyrf_lost_event__members[] = {
253         sample_members
254         member_def(lost_event, id, T_ULONGLONG, "event id"),
255         member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
256         { .name = NULL, },
257 };
258
259 static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
260 {
261         PyObject *ret;
262         char *s;
263
264         if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
265                          "lost: %#" PRIx64 " }",
266                      pevent->event.lost.id, pevent->event.lost.lost) < 0) {
267                 ret = PyErr_NoMemory();
268         } else {
269                 ret = _PyUnicode_FromString(s);
270                 free(s);
271         }
272         return ret;
273 }
274
275 static PyTypeObject pyrf_lost_event__type = {
276         PyVarObject_HEAD_INIT(NULL, 0)
277         .tp_name        = "perf.lost_event",
278         .tp_basicsize   = sizeof(struct pyrf_event),
279         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
280         .tp_doc         = pyrf_lost_event__doc,
281         .tp_members     = pyrf_lost_event__members,
282         .tp_repr        = (reprfunc)pyrf_lost_event__repr,
283 };
284
285 static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
286
287 static PyMemberDef pyrf_read_event__members[] = {
288         sample_members
289         member_def(read_event, pid, T_UINT, "event pid"),
290         member_def(read_event, tid, T_UINT, "event tid"),
291         { .name = NULL, },
292 };
293
294 static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
295 {
296         return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
297                                    pevent->event.read.pid,
298                                    pevent->event.read.tid);
299         /*
300          * FIXME: return the array of read values,
301          * making this method useful ;-)
302          */
303 }
304
305 static PyTypeObject pyrf_read_event__type = {
306         PyVarObject_HEAD_INIT(NULL, 0)
307         .tp_name        = "perf.read_event",
308         .tp_basicsize   = sizeof(struct pyrf_event),
309         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
310         .tp_doc         = pyrf_read_event__doc,
311         .tp_members     = pyrf_read_event__members,
312         .tp_repr        = (reprfunc)pyrf_read_event__repr,
313 };
314
315 static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
316
317 static PyMemberDef pyrf_sample_event__members[] = {
318         sample_members
319         member_def(perf_event_header, type, T_UINT, "event type"),
320         { .name = NULL, },
321 };
322
323 static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
324 {
325         PyObject *ret;
326         char *s;
327
328         if (asprintf(&s, "{ type: sample }") < 0) {
329                 ret = PyErr_NoMemory();
330         } else {
331                 ret = _PyUnicode_FromString(s);
332                 free(s);
333         }
334         return ret;
335 }
336
337 static bool is_tracepoint(struct pyrf_event *pevent)
338 {
339         return pevent->evsel->attr.type == PERF_TYPE_TRACEPOINT;
340 }
341
342 static PyObject*
343 tracepoint_field(struct pyrf_event *pe, struct format_field *field)
344 {
345         struct tep_handle *pevent = field->event->pevent;
346         void *data = pe->sample.raw_data;
347         PyObject *ret = NULL;
348         unsigned long long val;
349         unsigned int offset, len;
350
351         if (field->flags & FIELD_IS_ARRAY) {
352                 offset = field->offset;
353                 len    = field->size;
354                 if (field->flags & FIELD_IS_DYNAMIC) {
355                         val     = tep_read_number(pevent, data + offset, len);
356                         offset  = val;
357                         len     = offset >> 16;
358                         offset &= 0xffff;
359                 }
360                 if (field->flags & FIELD_IS_STRING &&
361                     is_printable_array(data + offset, len)) {
362                         ret = _PyUnicode_FromString((char *)data + offset);
363                 } else {
364                         ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
365                         field->flags &= ~FIELD_IS_STRING;
366                 }
367         } else {
368                 val = tep_read_number(pevent, data + field->offset,
369                                       field->size);
370                 if (field->flags & FIELD_IS_POINTER)
371                         ret = PyLong_FromUnsignedLong((unsigned long) val);
372                 else if (field->flags & FIELD_IS_SIGNED)
373                         ret = PyLong_FromLong((long) val);
374                 else
375                         ret = PyLong_FromUnsignedLong((unsigned long) val);
376         }
377
378         return ret;
379 }
380
381 static PyObject*
382 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
383 {
384         const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
385         struct perf_evsel *evsel = pevent->evsel;
386         struct format_field *field;
387
388         if (!evsel->tp_format) {
389                 struct event_format *tp_format;
390
391                 tp_format = trace_event__tp_format_id(evsel->attr.config);
392                 if (!tp_format)
393                         return NULL;
394
395                 evsel->tp_format = tp_format;
396         }
397
398         field = tep_find_any_field(evsel->tp_format, str);
399         if (!field)
400                 return NULL;
401
402         return tracepoint_field(pevent, field);
403 }
404
405 static PyObject*
406 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
407 {
408         PyObject *obj = NULL;
409
410         if (is_tracepoint(pevent))
411                 obj = get_tracepoint_field(pevent, attr_name);
412
413         return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
414 }
415
416 static PyTypeObject pyrf_sample_event__type = {
417         PyVarObject_HEAD_INIT(NULL, 0)
418         .tp_name        = "perf.sample_event",
419         .tp_basicsize   = sizeof(struct pyrf_event),
420         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
421         .tp_doc         = pyrf_sample_event__doc,
422         .tp_members     = pyrf_sample_event__members,
423         .tp_repr        = (reprfunc)pyrf_sample_event__repr,
424         .tp_getattro    = (getattrofunc) pyrf_sample_event__getattro,
425 };
426
427 static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
428
429 static PyMemberDef pyrf_context_switch_event__members[] = {
430         sample_members
431         member_def(perf_event_header, type, T_UINT, "event type"),
432         member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"),
433         member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"),
434         { .name = NULL, },
435 };
436
437 static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
438 {
439         PyObject *ret;
440         char *s;
441
442         if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
443                      pevent->event.context_switch.next_prev_pid,
444                      pevent->event.context_switch.next_prev_tid,
445                      !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
446                 ret = PyErr_NoMemory();
447         } else {
448                 ret = _PyUnicode_FromString(s);
449                 free(s);
450         }
451         return ret;
452 }
453
454 static PyTypeObject pyrf_context_switch_event__type = {
455         PyVarObject_HEAD_INIT(NULL, 0)
456         .tp_name        = "perf.context_switch_event",
457         .tp_basicsize   = sizeof(struct pyrf_event),
458         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
459         .tp_doc         = pyrf_context_switch_event__doc,
460         .tp_members     = pyrf_context_switch_event__members,
461         .tp_repr        = (reprfunc)pyrf_context_switch_event__repr,
462 };
463
464 static int pyrf_event__setup_types(void)
465 {
466         int err;
467         pyrf_mmap_event__type.tp_new =
468         pyrf_task_event__type.tp_new =
469         pyrf_comm_event__type.tp_new =
470         pyrf_lost_event__type.tp_new =
471         pyrf_read_event__type.tp_new =
472         pyrf_sample_event__type.tp_new =
473         pyrf_context_switch_event__type.tp_new =
474         pyrf_throttle_event__type.tp_new = PyType_GenericNew;
475         err = PyType_Ready(&pyrf_mmap_event__type);
476         if (err < 0)
477                 goto out;
478         err = PyType_Ready(&pyrf_lost_event__type);
479         if (err < 0)
480                 goto out;
481         err = PyType_Ready(&pyrf_task_event__type);
482         if (err < 0)
483                 goto out;
484         err = PyType_Ready(&pyrf_comm_event__type);
485         if (err < 0)
486                 goto out;
487         err = PyType_Ready(&pyrf_throttle_event__type);
488         if (err < 0)
489                 goto out;
490         err = PyType_Ready(&pyrf_read_event__type);
491         if (err < 0)
492                 goto out;
493         err = PyType_Ready(&pyrf_sample_event__type);
494         if (err < 0)
495                 goto out;
496         err = PyType_Ready(&pyrf_context_switch_event__type);
497         if (err < 0)
498                 goto out;
499 out:
500         return err;
501 }
502
503 static PyTypeObject *pyrf_event__type[] = {
504         [PERF_RECORD_MMAP]       = &pyrf_mmap_event__type,
505         [PERF_RECORD_LOST]       = &pyrf_lost_event__type,
506         [PERF_RECORD_COMM]       = &pyrf_comm_event__type,
507         [PERF_RECORD_EXIT]       = &pyrf_task_event__type,
508         [PERF_RECORD_THROTTLE]   = &pyrf_throttle_event__type,
509         [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
510         [PERF_RECORD_FORK]       = &pyrf_task_event__type,
511         [PERF_RECORD_READ]       = &pyrf_read_event__type,
512         [PERF_RECORD_SAMPLE]     = &pyrf_sample_event__type,
513         [PERF_RECORD_SWITCH]     = &pyrf_context_switch_event__type,
514         [PERF_RECORD_SWITCH_CPU_WIDE]  = &pyrf_context_switch_event__type,
515 };
516
517 static PyObject *pyrf_event__new(union perf_event *event)
518 {
519         struct pyrf_event *pevent;
520         PyTypeObject *ptype;
521
522         if ((event->header.type < PERF_RECORD_MMAP ||
523              event->header.type > PERF_RECORD_SAMPLE) &&
524             !(event->header.type == PERF_RECORD_SWITCH ||
525               event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
526                 return NULL;
527
528         ptype = pyrf_event__type[event->header.type];
529         pevent = PyObject_New(struct pyrf_event, ptype);
530         if (pevent != NULL)
531                 memcpy(&pevent->event, event, event->header.size);
532         return (PyObject *)pevent;
533 }
534
535 struct pyrf_cpu_map {
536         PyObject_HEAD
537
538         struct cpu_map *cpus;
539 };
540
541 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
542                               PyObject *args, PyObject *kwargs)
543 {
544         static char *kwlist[] = { "cpustr", NULL };
545         char *cpustr = NULL;
546
547         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
548                                          kwlist, &cpustr))
549                 return -1;
550
551         pcpus->cpus = cpu_map__new(cpustr);
552         if (pcpus->cpus == NULL)
553                 return -1;
554         return 0;
555 }
556
557 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
558 {
559         cpu_map__put(pcpus->cpus);
560         Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
561 }
562
563 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
564 {
565         struct pyrf_cpu_map *pcpus = (void *)obj;
566
567         return pcpus->cpus->nr;
568 }
569
570 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
571 {
572         struct pyrf_cpu_map *pcpus = (void *)obj;
573
574         if (i >= pcpus->cpus->nr)
575                 return NULL;
576
577         return Py_BuildValue("i", pcpus->cpus->map[i]);
578 }
579
580 static PySequenceMethods pyrf_cpu_map__sequence_methods = {
581         .sq_length = pyrf_cpu_map__length,
582         .sq_item   = pyrf_cpu_map__item,
583 };
584
585 static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
586
587 static PyTypeObject pyrf_cpu_map__type = {
588         PyVarObject_HEAD_INIT(NULL, 0)
589         .tp_name        = "perf.cpu_map",
590         .tp_basicsize   = sizeof(struct pyrf_cpu_map),
591         .tp_dealloc     = (destructor)pyrf_cpu_map__delete,
592         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
593         .tp_doc         = pyrf_cpu_map__doc,
594         .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
595         .tp_init        = (initproc)pyrf_cpu_map__init,
596 };
597
598 static int pyrf_cpu_map__setup_types(void)
599 {
600         pyrf_cpu_map__type.tp_new = PyType_GenericNew;
601         return PyType_Ready(&pyrf_cpu_map__type);
602 }
603
604 struct pyrf_thread_map {
605         PyObject_HEAD
606
607         struct thread_map *threads;
608 };
609
610 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
611                                  PyObject *args, PyObject *kwargs)
612 {
613         static char *kwlist[] = { "pid", "tid", "uid", NULL };
614         int pid = -1, tid = -1, uid = UINT_MAX;
615
616         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
617                                          kwlist, &pid, &tid, &uid))
618                 return -1;
619
620         pthreads->threads = thread_map__new(pid, tid, uid);
621         if (pthreads->threads == NULL)
622                 return -1;
623         return 0;
624 }
625
626 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
627 {
628         thread_map__put(pthreads->threads);
629         Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
630 }
631
632 static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
633 {
634         struct pyrf_thread_map *pthreads = (void *)obj;
635
636         return pthreads->threads->nr;
637 }
638
639 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
640 {
641         struct pyrf_thread_map *pthreads = (void *)obj;
642
643         if (i >= pthreads->threads->nr)
644                 return NULL;
645
646         return Py_BuildValue("i", pthreads->threads->map[i]);
647 }
648
649 static PySequenceMethods pyrf_thread_map__sequence_methods = {
650         .sq_length = pyrf_thread_map__length,
651         .sq_item   = pyrf_thread_map__item,
652 };
653
654 static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
655
656 static PyTypeObject pyrf_thread_map__type = {
657         PyVarObject_HEAD_INIT(NULL, 0)
658         .tp_name        = "perf.thread_map",
659         .tp_basicsize   = sizeof(struct pyrf_thread_map),
660         .tp_dealloc     = (destructor)pyrf_thread_map__delete,
661         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
662         .tp_doc         = pyrf_thread_map__doc,
663         .tp_as_sequence = &pyrf_thread_map__sequence_methods,
664         .tp_init        = (initproc)pyrf_thread_map__init,
665 };
666
667 static int pyrf_thread_map__setup_types(void)
668 {
669         pyrf_thread_map__type.tp_new = PyType_GenericNew;
670         return PyType_Ready(&pyrf_thread_map__type);
671 }
672
673 struct pyrf_evsel {
674         PyObject_HEAD
675
676         struct perf_evsel evsel;
677 };
678
679 static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
680                             PyObject *args, PyObject *kwargs)
681 {
682         struct perf_event_attr attr = {
683                 .type = PERF_TYPE_HARDWARE,
684                 .config = PERF_COUNT_HW_CPU_CYCLES,
685                 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
686         };
687         static char *kwlist[] = {
688                 "type",
689                 "config",
690                 "sample_freq",
691                 "sample_period",
692                 "sample_type",
693                 "read_format",
694                 "disabled",
695                 "inherit",
696                 "pinned",
697                 "exclusive",
698                 "exclude_user",
699                 "exclude_kernel",
700                 "exclude_hv",
701                 "exclude_idle",
702                 "mmap",
703                 "context_switch",
704                 "comm",
705                 "freq",
706                 "inherit_stat",
707                 "enable_on_exec",
708                 "task",
709                 "watermark",
710                 "precise_ip",
711                 "mmap_data",
712                 "sample_id_all",
713                 "wakeup_events",
714                 "bp_type",
715                 "bp_addr",
716                 "bp_len",
717                  NULL
718         };
719         u64 sample_period = 0;
720         u32 disabled = 0,
721             inherit = 0,
722             pinned = 0,
723             exclusive = 0,
724             exclude_user = 0,
725             exclude_kernel = 0,
726             exclude_hv = 0,
727             exclude_idle = 0,
728             mmap = 0,
729             context_switch = 0,
730             comm = 0,
731             freq = 1,
732             inherit_stat = 0,
733             enable_on_exec = 0,
734             task = 0,
735             watermark = 0,
736             precise_ip = 0,
737             mmap_data = 0,
738             sample_id_all = 1;
739         int idx = 0;
740
741         if (!PyArg_ParseTupleAndKeywords(args, kwargs,
742                                          "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
743                                          &attr.type, &attr.config, &attr.sample_freq,
744                                          &sample_period, &attr.sample_type,
745                                          &attr.read_format, &disabled, &inherit,
746                                          &pinned, &exclusive, &exclude_user,
747                                          &exclude_kernel, &exclude_hv, &exclude_idle,
748                                          &mmap, &context_switch, &comm, &freq, &inherit_stat,
749                                          &enable_on_exec, &task, &watermark,
750                                          &precise_ip, &mmap_data, &sample_id_all,
751                                          &attr.wakeup_events, &attr.bp_type,
752                                          &attr.bp_addr, &attr.bp_len, &idx))
753                 return -1;
754
755         /* union... */
756         if (sample_period != 0) {
757                 if (attr.sample_freq != 0)
758                         return -1; /* FIXME: throw right exception */
759                 attr.sample_period = sample_period;
760         }
761
762         /* Bitfields */
763         attr.disabled       = disabled;
764         attr.inherit        = inherit;
765         attr.pinned         = pinned;
766         attr.exclusive      = exclusive;
767         attr.exclude_user   = exclude_user;
768         attr.exclude_kernel = exclude_kernel;
769         attr.exclude_hv     = exclude_hv;
770         attr.exclude_idle   = exclude_idle;
771         attr.mmap           = mmap;
772         attr.context_switch = context_switch;
773         attr.comm           = comm;
774         attr.freq           = freq;
775         attr.inherit_stat   = inherit_stat;
776         attr.enable_on_exec = enable_on_exec;
777         attr.task           = task;
778         attr.watermark      = watermark;
779         attr.precise_ip     = precise_ip;
780         attr.mmap_data      = mmap_data;
781         attr.sample_id_all  = sample_id_all;
782         attr.size           = sizeof(attr);
783
784         perf_evsel__init(&pevsel->evsel, &attr, idx);
785         return 0;
786 }
787
788 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
789 {
790         perf_evsel__exit(&pevsel->evsel);
791         Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
792 }
793
794 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
795                                   PyObject *args, PyObject *kwargs)
796 {
797         struct perf_evsel *evsel = &pevsel->evsel;
798         struct cpu_map *cpus = NULL;
799         struct thread_map *threads = NULL;
800         PyObject *pcpus = NULL, *pthreads = NULL;
801         int group = 0, inherit = 0;
802         static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
803
804         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
805                                          &pcpus, &pthreads, &group, &inherit))
806                 return NULL;
807
808         if (pthreads != NULL)
809                 threads = ((struct pyrf_thread_map *)pthreads)->threads;
810
811         if (pcpus != NULL)
812                 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
813
814         evsel->attr.inherit = inherit;
815         /*
816          * This will group just the fds for this single evsel, to group
817          * multiple events, use evlist.open().
818          */
819         if (perf_evsel__open(evsel, cpus, threads) < 0) {
820                 PyErr_SetFromErrno(PyExc_OSError);
821                 return NULL;
822         }
823
824         Py_INCREF(Py_None);
825         return Py_None;
826 }
827
828 static PyMethodDef pyrf_evsel__methods[] = {
829         {
830                 .ml_name  = "open",
831                 .ml_meth  = (PyCFunction)pyrf_evsel__open,
832                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
833                 .ml_doc   = PyDoc_STR("open the event selector file descriptor table.")
834         },
835         { .ml_name = NULL, }
836 };
837
838 static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
839
840 static PyTypeObject pyrf_evsel__type = {
841         PyVarObject_HEAD_INIT(NULL, 0)
842         .tp_name        = "perf.evsel",
843         .tp_basicsize   = sizeof(struct pyrf_evsel),
844         .tp_dealloc     = (destructor)pyrf_evsel__delete,
845         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
846         .tp_doc         = pyrf_evsel__doc,
847         .tp_methods     = pyrf_evsel__methods,
848         .tp_init        = (initproc)pyrf_evsel__init,
849 };
850
851 static int pyrf_evsel__setup_types(void)
852 {
853         pyrf_evsel__type.tp_new = PyType_GenericNew;
854         return PyType_Ready(&pyrf_evsel__type);
855 }
856
857 struct pyrf_evlist {
858         PyObject_HEAD
859
860         struct perf_evlist evlist;
861 };
862
863 static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
864                              PyObject *args, PyObject *kwargs __maybe_unused)
865 {
866         PyObject *pcpus = NULL, *pthreads = NULL;
867         struct cpu_map *cpus;
868         struct thread_map *threads;
869
870         if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
871                 return -1;
872
873         threads = ((struct pyrf_thread_map *)pthreads)->threads;
874         cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
875         perf_evlist__init(&pevlist->evlist, cpus, threads);
876         return 0;
877 }
878
879 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
880 {
881         perf_evlist__exit(&pevlist->evlist);
882         Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
883 }
884
885 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
886                                    PyObject *args, PyObject *kwargs)
887 {
888         struct perf_evlist *evlist = &pevlist->evlist;
889         static char *kwlist[] = { "pages", "overwrite", NULL };
890         int pages = 128, overwrite = false;
891
892         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
893                                          &pages, &overwrite))
894                 return NULL;
895
896         if (perf_evlist__mmap(evlist, pages) < 0) {
897                 PyErr_SetFromErrno(PyExc_OSError);
898                 return NULL;
899         }
900
901         Py_INCREF(Py_None);
902         return Py_None;
903 }
904
905 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
906                                    PyObject *args, PyObject *kwargs)
907 {
908         struct perf_evlist *evlist = &pevlist->evlist;
909         static char *kwlist[] = { "timeout", NULL };
910         int timeout = -1, n;
911
912         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
913                 return NULL;
914
915         n = perf_evlist__poll(evlist, timeout);
916         if (n < 0) {
917                 PyErr_SetFromErrno(PyExc_OSError);
918                 return NULL;
919         }
920
921         return Py_BuildValue("i", n);
922 }
923
924 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
925                                          PyObject *args __maybe_unused,
926                                          PyObject *kwargs __maybe_unused)
927 {
928         struct perf_evlist *evlist = &pevlist->evlist;
929         PyObject *list = PyList_New(0);
930         int i;
931
932         for (i = 0; i < evlist->pollfd.nr; ++i) {
933                 PyObject *file;
934 #if PY_MAJOR_VERSION < 3
935                 FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r");
936
937                 if (fp == NULL)
938                         goto free_list;
939
940                 file = PyFile_FromFile(fp, "perf", "r", NULL);
941 #else
942                 file = PyFile_FromFd(evlist->pollfd.entries[i].fd, "perf", "r", -1,
943                                      NULL, NULL, NULL, 0);
944 #endif
945                 if (file == NULL)
946                         goto free_list;
947
948                 if (PyList_Append(list, file) != 0) {
949                         Py_DECREF(file);
950                         goto free_list;
951                 }
952
953                 Py_DECREF(file);
954         }
955
956         return list;
957 free_list:
958         return PyErr_NoMemory();
959 }
960
961
962 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
963                                   PyObject *args,
964                                   PyObject *kwargs __maybe_unused)
965 {
966         struct perf_evlist *evlist = &pevlist->evlist;
967         PyObject *pevsel;
968         struct perf_evsel *evsel;
969
970         if (!PyArg_ParseTuple(args, "O", &pevsel))
971                 return NULL;
972
973         Py_INCREF(pevsel);
974         evsel = &((struct pyrf_evsel *)pevsel)->evsel;
975         evsel->idx = evlist->nr_entries;
976         perf_evlist__add(evlist, evsel);
977
978         return Py_BuildValue("i", evlist->nr_entries);
979 }
980
981 static struct perf_mmap *get_md(struct perf_evlist *evlist, int cpu)
982 {
983         int i;
984
985         for (i = 0; i < evlist->nr_mmaps; i++) {
986                 struct perf_mmap *md = &evlist->mmap[i];
987
988                 if (md->cpu == cpu)
989                         return md;
990         }
991
992         return NULL;
993 }
994
995 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
996                                           PyObject *args, PyObject *kwargs)
997 {
998         struct perf_evlist *evlist = &pevlist->evlist;
999         union perf_event *event;
1000         int sample_id_all = 1, cpu;
1001         static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1002         struct perf_mmap *md;
1003         int err;
1004
1005         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1006                                          &cpu, &sample_id_all))
1007                 return NULL;
1008
1009         md = get_md(evlist, cpu);
1010         if (!md)
1011                 return NULL;
1012
1013         if (perf_mmap__read_init(md) < 0)
1014                 goto end;
1015
1016         event = perf_mmap__read_event(md);
1017         if (event != NULL) {
1018                 PyObject *pyevent = pyrf_event__new(event);
1019                 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1020                 struct perf_evsel *evsel;
1021
1022                 if (pyevent == NULL)
1023                         return PyErr_NoMemory();
1024
1025                 evsel = perf_evlist__event2evsel(evlist, event);
1026                 if (!evsel) {
1027                         Py_INCREF(Py_None);
1028                         return Py_None;
1029                 }
1030
1031                 pevent->evsel = evsel;
1032
1033                 err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
1034
1035                 /* Consume the even only after we parsed it out. */
1036                 perf_mmap__consume(md);
1037
1038                 if (err)
1039                         return PyErr_Format(PyExc_OSError,
1040                                             "perf: can't parse sample, err=%d", err);
1041                 return pyevent;
1042         }
1043 end:
1044         Py_INCREF(Py_None);
1045         return Py_None;
1046 }
1047
1048 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1049                                    PyObject *args, PyObject *kwargs)
1050 {
1051         struct perf_evlist *evlist = &pevlist->evlist;
1052         int group = 0;
1053         static char *kwlist[] = { "group", NULL };
1054
1055         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1056                 return NULL;
1057
1058         if (group)
1059                 perf_evlist__set_leader(evlist);
1060
1061         if (perf_evlist__open(evlist) < 0) {
1062                 PyErr_SetFromErrno(PyExc_OSError);
1063                 return NULL;
1064         }
1065
1066         Py_INCREF(Py_None);
1067         return Py_None;
1068 }
1069
1070 static PyMethodDef pyrf_evlist__methods[] = {
1071         {
1072                 .ml_name  = "mmap",
1073                 .ml_meth  = (PyCFunction)pyrf_evlist__mmap,
1074                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1075                 .ml_doc   = PyDoc_STR("mmap the file descriptor table.")
1076         },
1077         {
1078                 .ml_name  = "open",
1079                 .ml_meth  = (PyCFunction)pyrf_evlist__open,
1080                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1081                 .ml_doc   = PyDoc_STR("open the file descriptors.")
1082         },
1083         {
1084                 .ml_name  = "poll",
1085                 .ml_meth  = (PyCFunction)pyrf_evlist__poll,
1086                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1087                 .ml_doc   = PyDoc_STR("poll the file descriptor table.")
1088         },
1089         {
1090                 .ml_name  = "get_pollfd",
1091                 .ml_meth  = (PyCFunction)pyrf_evlist__get_pollfd,
1092                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1093                 .ml_doc   = PyDoc_STR("get the poll file descriptor table.")
1094         },
1095         {
1096                 .ml_name  = "add",
1097                 .ml_meth  = (PyCFunction)pyrf_evlist__add,
1098                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1099                 .ml_doc   = PyDoc_STR("adds an event selector to the list.")
1100         },
1101         {
1102                 .ml_name  = "read_on_cpu",
1103                 .ml_meth  = (PyCFunction)pyrf_evlist__read_on_cpu,
1104                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1105                 .ml_doc   = PyDoc_STR("reads an event.")
1106         },
1107         { .ml_name = NULL, }
1108 };
1109
1110 static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1111 {
1112         struct pyrf_evlist *pevlist = (void *)obj;
1113
1114         return pevlist->evlist.nr_entries;
1115 }
1116
1117 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1118 {
1119         struct pyrf_evlist *pevlist = (void *)obj;
1120         struct perf_evsel *pos;
1121
1122         if (i >= pevlist->evlist.nr_entries)
1123                 return NULL;
1124
1125         evlist__for_each_entry(&pevlist->evlist, pos) {
1126                 if (i-- == 0)
1127                         break;
1128         }
1129
1130         return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1131 }
1132
1133 static PySequenceMethods pyrf_evlist__sequence_methods = {
1134         .sq_length = pyrf_evlist__length,
1135         .sq_item   = pyrf_evlist__item,
1136 };
1137
1138 static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1139
1140 static PyTypeObject pyrf_evlist__type = {
1141         PyVarObject_HEAD_INIT(NULL, 0)
1142         .tp_name        = "perf.evlist",
1143         .tp_basicsize   = sizeof(struct pyrf_evlist),
1144         .tp_dealloc     = (destructor)pyrf_evlist__delete,
1145         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1146         .tp_as_sequence = &pyrf_evlist__sequence_methods,
1147         .tp_doc         = pyrf_evlist__doc,
1148         .tp_methods     = pyrf_evlist__methods,
1149         .tp_init        = (initproc)pyrf_evlist__init,
1150 };
1151
1152 static int pyrf_evlist__setup_types(void)
1153 {
1154         pyrf_evlist__type.tp_new = PyType_GenericNew;
1155         return PyType_Ready(&pyrf_evlist__type);
1156 }
1157
1158 #define PERF_CONST(name) { #name, PERF_##name }
1159
1160 static struct {
1161         const char *name;
1162         int         value;
1163 } perf__constants[] = {
1164         PERF_CONST(TYPE_HARDWARE),
1165         PERF_CONST(TYPE_SOFTWARE),
1166         PERF_CONST(TYPE_TRACEPOINT),
1167         PERF_CONST(TYPE_HW_CACHE),
1168         PERF_CONST(TYPE_RAW),
1169         PERF_CONST(TYPE_BREAKPOINT),
1170
1171         PERF_CONST(COUNT_HW_CPU_CYCLES),
1172         PERF_CONST(COUNT_HW_INSTRUCTIONS),
1173         PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1174         PERF_CONST(COUNT_HW_CACHE_MISSES),
1175         PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1176         PERF_CONST(COUNT_HW_BRANCH_MISSES),
1177         PERF_CONST(COUNT_HW_BUS_CYCLES),
1178         PERF_CONST(COUNT_HW_CACHE_L1D),
1179         PERF_CONST(COUNT_HW_CACHE_L1I),
1180         PERF_CONST(COUNT_HW_CACHE_LL),
1181         PERF_CONST(COUNT_HW_CACHE_DTLB),
1182         PERF_CONST(COUNT_HW_CACHE_ITLB),
1183         PERF_CONST(COUNT_HW_CACHE_BPU),
1184         PERF_CONST(COUNT_HW_CACHE_OP_READ),
1185         PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1186         PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1187         PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1188         PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1189
1190         PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1191         PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1192
1193         PERF_CONST(COUNT_SW_CPU_CLOCK),
1194         PERF_CONST(COUNT_SW_TASK_CLOCK),
1195         PERF_CONST(COUNT_SW_PAGE_FAULTS),
1196         PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1197         PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1198         PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1199         PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1200         PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1201         PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1202         PERF_CONST(COUNT_SW_DUMMY),
1203
1204         PERF_CONST(SAMPLE_IP),
1205         PERF_CONST(SAMPLE_TID),
1206         PERF_CONST(SAMPLE_TIME),
1207         PERF_CONST(SAMPLE_ADDR),
1208         PERF_CONST(SAMPLE_READ),
1209         PERF_CONST(SAMPLE_CALLCHAIN),
1210         PERF_CONST(SAMPLE_ID),
1211         PERF_CONST(SAMPLE_CPU),
1212         PERF_CONST(SAMPLE_PERIOD),
1213         PERF_CONST(SAMPLE_STREAM_ID),
1214         PERF_CONST(SAMPLE_RAW),
1215
1216         PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1217         PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1218         PERF_CONST(FORMAT_ID),
1219         PERF_CONST(FORMAT_GROUP),
1220
1221         PERF_CONST(RECORD_MMAP),
1222         PERF_CONST(RECORD_LOST),
1223         PERF_CONST(RECORD_COMM),
1224         PERF_CONST(RECORD_EXIT),
1225         PERF_CONST(RECORD_THROTTLE),
1226         PERF_CONST(RECORD_UNTHROTTLE),
1227         PERF_CONST(RECORD_FORK),
1228         PERF_CONST(RECORD_READ),
1229         PERF_CONST(RECORD_SAMPLE),
1230         PERF_CONST(RECORD_MMAP2),
1231         PERF_CONST(RECORD_AUX),
1232         PERF_CONST(RECORD_ITRACE_START),
1233         PERF_CONST(RECORD_LOST_SAMPLES),
1234         PERF_CONST(RECORD_SWITCH),
1235         PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1236
1237         PERF_CONST(RECORD_MISC_SWITCH_OUT),
1238         { .name = NULL, },
1239 };
1240
1241 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1242                                   PyObject *args, PyObject *kwargs)
1243 {
1244         struct event_format *tp_format;
1245         static char *kwlist[] = { "sys", "name", NULL };
1246         char *sys  = NULL;
1247         char *name = NULL;
1248
1249         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1250                                          &sys, &name))
1251                 return NULL;
1252
1253         tp_format = trace_event__tp_format(sys, name);
1254         if (IS_ERR(tp_format))
1255                 return _PyLong_FromLong(-1);
1256
1257         return _PyLong_FromLong(tp_format->id);
1258 }
1259
1260 static PyMethodDef perf__methods[] = {
1261         {
1262                 .ml_name  = "tracepoint",
1263                 .ml_meth  = (PyCFunction) pyrf__tracepoint,
1264                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1265                 .ml_doc   = PyDoc_STR("Get tracepoint config.")
1266         },
1267         { .ml_name = NULL, }
1268 };
1269
1270 #if PY_MAJOR_VERSION < 3
1271 PyMODINIT_FUNC initperf(void)
1272 #else
1273 PyMODINIT_FUNC PyInit_perf(void)
1274 #endif
1275 {
1276         PyObject *obj;
1277         int i;
1278         PyObject *dict;
1279 #if PY_MAJOR_VERSION < 3
1280         PyObject *module = Py_InitModule("perf", perf__methods);
1281 #else
1282         static struct PyModuleDef moduledef = {
1283                 PyModuleDef_HEAD_INIT,
1284                 "perf",                 /* m_name */
1285                 "",                     /* m_doc */
1286                 -1,                     /* m_size */
1287                 perf__methods,          /* m_methods */
1288                 NULL,                   /* m_reload */
1289                 NULL,                   /* m_traverse */
1290                 NULL,                   /* m_clear */
1291                 NULL,                   /* m_free */
1292         };
1293         PyObject *module = PyModule_Create(&moduledef);
1294 #endif
1295
1296         if (module == NULL ||
1297             pyrf_event__setup_types() < 0 ||
1298             pyrf_evlist__setup_types() < 0 ||
1299             pyrf_evsel__setup_types() < 0 ||
1300             pyrf_thread_map__setup_types() < 0 ||
1301             pyrf_cpu_map__setup_types() < 0)
1302 #if PY_MAJOR_VERSION < 3
1303                 return;
1304 #else
1305                 return module;
1306 #endif
1307
1308         /* The page_size is placed in util object. */
1309         page_size = sysconf(_SC_PAGE_SIZE);
1310
1311         Py_INCREF(&pyrf_evlist__type);
1312         PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1313
1314         Py_INCREF(&pyrf_evsel__type);
1315         PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1316
1317         Py_INCREF(&pyrf_mmap_event__type);
1318         PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1319
1320         Py_INCREF(&pyrf_lost_event__type);
1321         PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1322
1323         Py_INCREF(&pyrf_comm_event__type);
1324         PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1325
1326         Py_INCREF(&pyrf_task_event__type);
1327         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1328
1329         Py_INCREF(&pyrf_throttle_event__type);
1330         PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1331
1332         Py_INCREF(&pyrf_task_event__type);
1333         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1334
1335         Py_INCREF(&pyrf_read_event__type);
1336         PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1337
1338         Py_INCREF(&pyrf_sample_event__type);
1339         PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1340
1341         Py_INCREF(&pyrf_context_switch_event__type);
1342         PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1343
1344         Py_INCREF(&pyrf_thread_map__type);
1345         PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1346
1347         Py_INCREF(&pyrf_cpu_map__type);
1348         PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1349
1350         dict = PyModule_GetDict(module);
1351         if (dict == NULL)
1352                 goto error;
1353
1354         for (i = 0; perf__constants[i].name != NULL; i++) {
1355                 obj = _PyLong_FromLong(perf__constants[i].value);
1356                 if (obj == NULL)
1357                         goto error;
1358                 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1359                 Py_DECREF(obj);
1360         }
1361
1362 error:
1363         if (PyErr_Occurred())
1364                 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1365 #if PY_MAJOR_VERSION >= 3
1366         return module;
1367 #endif
1368 }
1369
1370 /*
1371  * Dummy, to avoid dragging all the test_attr infrastructure in the python
1372  * binding.
1373  */
1374 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1375                      int fd, int group_fd, unsigned long flags)
1376 {
1377 }