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1 // SPDX-License-Identifier: GPL-2.0
2 #include <Python.h>
3 #include <structmember.h>
4 #include <inttypes.h>
5 #include <poll.h>
6 #include <linux/err.h>
7 #include <perf/cpumap.h>
8 #ifdef HAVE_LIBTRACEEVENT
9 #include <traceevent/event-parse.h>
10 #endif
11 #include <perf/mmap.h>
12 #include "evlist.h"
13 #include "callchain.h"
14 #include "evsel.h"
15 #include "event.h"
16 #include "print_binary.h"
17 #include "thread_map.h"
18 #include "trace-event.h"
19 #include "mmap.h"
20 #include "stat.h"
21 #include "metricgroup.h"
22 #include "util/env.h"
23 #include <internal/lib.h>
24 #include "util.h"
25
26 #if PY_MAJOR_VERSION < 3
27 #define _PyUnicode_FromString(arg) \
28   PyString_FromString(arg)
29 #define _PyUnicode_AsString(arg) \
30   PyString_AsString(arg)
31 #define _PyUnicode_FromFormat(...) \
32   PyString_FromFormat(__VA_ARGS__)
33 #define _PyLong_FromLong(arg) \
34   PyInt_FromLong(arg)
35
36 #else
37
38 #define _PyUnicode_FromString(arg) \
39   PyUnicode_FromString(arg)
40 #define _PyUnicode_FromFormat(...) \
41   PyUnicode_FromFormat(__VA_ARGS__)
42 #define _PyLong_FromLong(arg) \
43   PyLong_FromLong(arg)
44 #endif
45
46 #ifndef Py_TYPE
47 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
48 #endif
49
50 /*
51  * Provide these two so that we don't have to link against callchain.c and
52  * start dragging hist.c, etc.
53  */
54 struct callchain_param callchain_param;
55
56 int parse_callchain_record(const char *arg __maybe_unused,
57                            struct callchain_param *param __maybe_unused)
58 {
59         return 0;
60 }
61
62 /*
63  * Add these not to drag util/env.c
64  */
65 struct perf_env perf_env;
66
67 const char *perf_env__cpuid(struct perf_env *env __maybe_unused)
68 {
69         return NULL;
70 }
71
72 // This one is a bit easier, wouldn't drag too much, but leave it as a stub we need it here
73 const char *perf_env__arch(struct perf_env *env __maybe_unused)
74 {
75         return NULL;
76 }
77
78 /*
79  * Add this one here not to drag util/stat-shadow.c
80  */
81 void perf_stat__collect_metric_expr(struct evlist *evsel_list)
82 {
83 }
84
85 /*
86  * This one is needed not to drag the PMU bandwagon, jevents generated
87  * pmu_sys_event_tables, etc and evsel__find_pmu() is used so far just for
88  * doing per PMU perf_event_attr.exclude_guest handling, not really needed, so
89  * far, for the perf python binding known usecases, revisit if this become
90  * necessary.
91  */
92 struct perf_pmu *evsel__find_pmu(struct evsel *evsel __maybe_unused)
93 {
94         return NULL;
95 }
96
97 /*
98  * Add this one here not to drag util/metricgroup.c
99  */
100 int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
101                                     struct rblist *new_metric_events,
102                                     struct rblist *old_metric_events)
103 {
104         return 0;
105 }
106
107 /*
108  * XXX: All these evsel destructors need some better mechanism, like a linked
109  * list of destructors registered when the relevant code indeed is used instead
110  * of having more and more calls in perf_evsel__delete(). -- acme
111  *
112  * For now, add some more:
113  *
114  * Not to drag the BPF bandwagon...
115  */
116 void bpf_counter__destroy(struct evsel *evsel);
117 int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd);
118 int bpf_counter__disable(struct evsel *evsel);
119
120 void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
121 {
122 }
123
124 int bpf_counter__install_pe(struct evsel *evsel __maybe_unused, int cpu __maybe_unused, int fd __maybe_unused)
125 {
126         return 0;
127 }
128
129 int bpf_counter__disable(struct evsel *evsel __maybe_unused)
130 {
131         return 0;
132 }
133
134 /*
135  * Support debug printing even though util/debug.c is not linked.  That means
136  * implementing 'verbose' and 'eprintf'.
137  */
138 int verbose;
139 int debug_peo_args;
140
141 int eprintf(int level, int var, const char *fmt, ...);
142
143 int eprintf(int level, int var, const char *fmt, ...)
144 {
145         va_list args;
146         int ret = 0;
147
148         if (var >= level) {
149                 va_start(args, fmt);
150                 ret = vfprintf(stderr, fmt, args);
151                 va_end(args);
152         }
153
154         return ret;
155 }
156
157 /* Define PyVarObject_HEAD_INIT for python 2.5 */
158 #ifndef PyVarObject_HEAD_INIT
159 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
160 #endif
161
162 #if PY_MAJOR_VERSION < 3
163 PyMODINIT_FUNC initperf(void);
164 #else
165 PyMODINIT_FUNC PyInit_perf(void);
166 #endif
167
168 #define member_def(type, member, ptype, help) \
169         { #member, ptype, \
170           offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
171           0, help }
172
173 #define sample_member_def(name, member, ptype, help) \
174         { #name, ptype, \
175           offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
176           0, help }
177
178 struct pyrf_event {
179         PyObject_HEAD
180         struct evsel *evsel;
181         struct perf_sample sample;
182         union perf_event   event;
183 };
184
185 #define sample_members \
186         sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"),                     \
187         sample_member_def(sample_pid, pid, T_INT, "event pid"),                  \
188         sample_member_def(sample_tid, tid, T_INT, "event tid"),                  \
189         sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"),            \
190         sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"),                 \
191         sample_member_def(sample_id, id, T_ULONGLONG, "event id"),                       \
192         sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
193         sample_member_def(sample_period, period, T_ULONGLONG, "event period"),           \
194         sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
195
196 static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
197
198 static PyMemberDef pyrf_mmap_event__members[] = {
199         sample_members
200         member_def(perf_event_header, type, T_UINT, "event type"),
201         member_def(perf_event_header, misc, T_UINT, "event misc"),
202         member_def(perf_record_mmap, pid, T_UINT, "event pid"),
203         member_def(perf_record_mmap, tid, T_UINT, "event tid"),
204         member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
205         member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
206         member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
207         member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
208         { .name = NULL, },
209 };
210
211 static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
212 {
213         PyObject *ret;
214         char *s;
215
216         if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
217                          "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
218                          "filename: %s }",
219                      pevent->event.mmap.pid, pevent->event.mmap.tid,
220                      pevent->event.mmap.start, pevent->event.mmap.len,
221                      pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
222                 ret = PyErr_NoMemory();
223         } else {
224                 ret = _PyUnicode_FromString(s);
225                 free(s);
226         }
227         return ret;
228 }
229
230 static PyTypeObject pyrf_mmap_event__type = {
231         PyVarObject_HEAD_INIT(NULL, 0)
232         .tp_name        = "perf.mmap_event",
233         .tp_basicsize   = sizeof(struct pyrf_event),
234         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
235         .tp_doc         = pyrf_mmap_event__doc,
236         .tp_members     = pyrf_mmap_event__members,
237         .tp_repr        = (reprfunc)pyrf_mmap_event__repr,
238 };
239
240 static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
241
242 static PyMemberDef pyrf_task_event__members[] = {
243         sample_members
244         member_def(perf_event_header, type, T_UINT, "event type"),
245         member_def(perf_record_fork, pid, T_UINT, "event pid"),
246         member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
247         member_def(perf_record_fork, tid, T_UINT, "event tid"),
248         member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
249         member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
250         { .name = NULL, },
251 };
252
253 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
254 {
255         return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
256                                    "ptid: %u, time: %" PRI_lu64 "}",
257                                    pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
258                                    pevent->event.fork.pid,
259                                    pevent->event.fork.ppid,
260                                    pevent->event.fork.tid,
261                                    pevent->event.fork.ptid,
262                                    pevent->event.fork.time);
263 }
264
265 static PyTypeObject pyrf_task_event__type = {
266         PyVarObject_HEAD_INIT(NULL, 0)
267         .tp_name        = "perf.task_event",
268         .tp_basicsize   = sizeof(struct pyrf_event),
269         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
270         .tp_doc         = pyrf_task_event__doc,
271         .tp_members     = pyrf_task_event__members,
272         .tp_repr        = (reprfunc)pyrf_task_event__repr,
273 };
274
275 static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
276
277 static PyMemberDef pyrf_comm_event__members[] = {
278         sample_members
279         member_def(perf_event_header, type, T_UINT, "event type"),
280         member_def(perf_record_comm, pid, T_UINT, "event pid"),
281         member_def(perf_record_comm, tid, T_UINT, "event tid"),
282         member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
283         { .name = NULL, },
284 };
285
286 static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
287 {
288         return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
289                                    pevent->event.comm.pid,
290                                    pevent->event.comm.tid,
291                                    pevent->event.comm.comm);
292 }
293
294 static PyTypeObject pyrf_comm_event__type = {
295         PyVarObject_HEAD_INIT(NULL, 0)
296         .tp_name        = "perf.comm_event",
297         .tp_basicsize   = sizeof(struct pyrf_event),
298         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
299         .tp_doc         = pyrf_comm_event__doc,
300         .tp_members     = pyrf_comm_event__members,
301         .tp_repr        = (reprfunc)pyrf_comm_event__repr,
302 };
303
304 static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
305
306 static PyMemberDef pyrf_throttle_event__members[] = {
307         sample_members
308         member_def(perf_event_header, type, T_UINT, "event type"),
309         member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
310         member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
311         member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
312         { .name = NULL, },
313 };
314
315 static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
316 {
317         struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
318
319         return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
320                                    ", stream_id: %" PRI_lu64 " }",
321                                    pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
322                                    te->time, te->id, te->stream_id);
323 }
324
325 static PyTypeObject pyrf_throttle_event__type = {
326         PyVarObject_HEAD_INIT(NULL, 0)
327         .tp_name        = "perf.throttle_event",
328         .tp_basicsize   = sizeof(struct pyrf_event),
329         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
330         .tp_doc         = pyrf_throttle_event__doc,
331         .tp_members     = pyrf_throttle_event__members,
332         .tp_repr        = (reprfunc)pyrf_throttle_event__repr,
333 };
334
335 static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
336
337 static PyMemberDef pyrf_lost_event__members[] = {
338         sample_members
339         member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
340         member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
341         { .name = NULL, },
342 };
343
344 static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
345 {
346         PyObject *ret;
347         char *s;
348
349         if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
350                          "lost: %#" PRI_lx64 " }",
351                      pevent->event.lost.id, pevent->event.lost.lost) < 0) {
352                 ret = PyErr_NoMemory();
353         } else {
354                 ret = _PyUnicode_FromString(s);
355                 free(s);
356         }
357         return ret;
358 }
359
360 static PyTypeObject pyrf_lost_event__type = {
361         PyVarObject_HEAD_INIT(NULL, 0)
362         .tp_name        = "perf.lost_event",
363         .tp_basicsize   = sizeof(struct pyrf_event),
364         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
365         .tp_doc         = pyrf_lost_event__doc,
366         .tp_members     = pyrf_lost_event__members,
367         .tp_repr        = (reprfunc)pyrf_lost_event__repr,
368 };
369
370 static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
371
372 static PyMemberDef pyrf_read_event__members[] = {
373         sample_members
374         member_def(perf_record_read, pid, T_UINT, "event pid"),
375         member_def(perf_record_read, tid, T_UINT, "event tid"),
376         { .name = NULL, },
377 };
378
379 static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
380 {
381         return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
382                                    pevent->event.read.pid,
383                                    pevent->event.read.tid);
384         /*
385          * FIXME: return the array of read values,
386          * making this method useful ;-)
387          */
388 }
389
390 static PyTypeObject pyrf_read_event__type = {
391         PyVarObject_HEAD_INIT(NULL, 0)
392         .tp_name        = "perf.read_event",
393         .tp_basicsize   = sizeof(struct pyrf_event),
394         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
395         .tp_doc         = pyrf_read_event__doc,
396         .tp_members     = pyrf_read_event__members,
397         .tp_repr        = (reprfunc)pyrf_read_event__repr,
398 };
399
400 static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
401
402 static PyMemberDef pyrf_sample_event__members[] = {
403         sample_members
404         member_def(perf_event_header, type, T_UINT, "event type"),
405         { .name = NULL, },
406 };
407
408 static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
409 {
410         PyObject *ret;
411         char *s;
412
413         if (asprintf(&s, "{ type: sample }") < 0) {
414                 ret = PyErr_NoMemory();
415         } else {
416                 ret = _PyUnicode_FromString(s);
417                 free(s);
418         }
419         return ret;
420 }
421
422 #ifdef HAVE_LIBTRACEEVENT
423 static bool is_tracepoint(struct pyrf_event *pevent)
424 {
425         return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
426 }
427
428 static PyObject*
429 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
430 {
431         struct tep_handle *pevent = field->event->tep;
432         void *data = pe->sample.raw_data;
433         PyObject *ret = NULL;
434         unsigned long long val;
435         unsigned int offset, len;
436
437         if (field->flags & TEP_FIELD_IS_ARRAY) {
438                 offset = field->offset;
439                 len    = field->size;
440                 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
441                         val     = tep_read_number(pevent, data + offset, len);
442                         offset  = val;
443                         len     = offset >> 16;
444                         offset &= 0xffff;
445 #ifdef HAVE_LIBTRACEEVENT_TEP_FIELD_IS_RELATIVE
446                         if (field->flags & TEP_FIELD_IS_RELATIVE)
447                                 offset += field->offset + field->size;
448 #endif
449                 }
450                 if (field->flags & TEP_FIELD_IS_STRING &&
451                     is_printable_array(data + offset, len)) {
452                         ret = _PyUnicode_FromString((char *)data + offset);
453                 } else {
454                         ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
455                         field->flags &= ~TEP_FIELD_IS_STRING;
456                 }
457         } else {
458                 val = tep_read_number(pevent, data + field->offset,
459                                       field->size);
460                 if (field->flags & TEP_FIELD_IS_POINTER)
461                         ret = PyLong_FromUnsignedLong((unsigned long) val);
462                 else if (field->flags & TEP_FIELD_IS_SIGNED)
463                         ret = PyLong_FromLong((long) val);
464                 else
465                         ret = PyLong_FromUnsignedLong((unsigned long) val);
466         }
467
468         return ret;
469 }
470
471 static PyObject*
472 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
473 {
474         const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
475         struct evsel *evsel = pevent->evsel;
476         struct tep_format_field *field;
477
478         if (!evsel->tp_format) {
479                 struct tep_event *tp_format;
480
481                 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
482                 if (IS_ERR_OR_NULL(tp_format))
483                         return NULL;
484
485                 evsel->tp_format = tp_format;
486         }
487
488         field = tep_find_any_field(evsel->tp_format, str);
489         if (!field)
490                 return NULL;
491
492         return tracepoint_field(pevent, field);
493 }
494 #endif /* HAVE_LIBTRACEEVENT */
495
496 static PyObject*
497 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
498 {
499         PyObject *obj = NULL;
500
501 #ifdef HAVE_LIBTRACEEVENT
502         if (is_tracepoint(pevent))
503                 obj = get_tracepoint_field(pevent, attr_name);
504 #endif
505
506         return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
507 }
508
509 static PyTypeObject pyrf_sample_event__type = {
510         PyVarObject_HEAD_INIT(NULL, 0)
511         .tp_name        = "perf.sample_event",
512         .tp_basicsize   = sizeof(struct pyrf_event),
513         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
514         .tp_doc         = pyrf_sample_event__doc,
515         .tp_members     = pyrf_sample_event__members,
516         .tp_repr        = (reprfunc)pyrf_sample_event__repr,
517         .tp_getattro    = (getattrofunc) pyrf_sample_event__getattro,
518 };
519
520 static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
521
522 static PyMemberDef pyrf_context_switch_event__members[] = {
523         sample_members
524         member_def(perf_event_header, type, T_UINT, "event type"),
525         member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
526         member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
527         { .name = NULL, },
528 };
529
530 static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
531 {
532         PyObject *ret;
533         char *s;
534
535         if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
536                      pevent->event.context_switch.next_prev_pid,
537                      pevent->event.context_switch.next_prev_tid,
538                      !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
539                 ret = PyErr_NoMemory();
540         } else {
541                 ret = _PyUnicode_FromString(s);
542                 free(s);
543         }
544         return ret;
545 }
546
547 static PyTypeObject pyrf_context_switch_event__type = {
548         PyVarObject_HEAD_INIT(NULL, 0)
549         .tp_name        = "perf.context_switch_event",
550         .tp_basicsize   = sizeof(struct pyrf_event),
551         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
552         .tp_doc         = pyrf_context_switch_event__doc,
553         .tp_members     = pyrf_context_switch_event__members,
554         .tp_repr        = (reprfunc)pyrf_context_switch_event__repr,
555 };
556
557 static int pyrf_event__setup_types(void)
558 {
559         int err;
560         pyrf_mmap_event__type.tp_new =
561         pyrf_task_event__type.tp_new =
562         pyrf_comm_event__type.tp_new =
563         pyrf_lost_event__type.tp_new =
564         pyrf_read_event__type.tp_new =
565         pyrf_sample_event__type.tp_new =
566         pyrf_context_switch_event__type.tp_new =
567         pyrf_throttle_event__type.tp_new = PyType_GenericNew;
568         err = PyType_Ready(&pyrf_mmap_event__type);
569         if (err < 0)
570                 goto out;
571         err = PyType_Ready(&pyrf_lost_event__type);
572         if (err < 0)
573                 goto out;
574         err = PyType_Ready(&pyrf_task_event__type);
575         if (err < 0)
576                 goto out;
577         err = PyType_Ready(&pyrf_comm_event__type);
578         if (err < 0)
579                 goto out;
580         err = PyType_Ready(&pyrf_throttle_event__type);
581         if (err < 0)
582                 goto out;
583         err = PyType_Ready(&pyrf_read_event__type);
584         if (err < 0)
585                 goto out;
586         err = PyType_Ready(&pyrf_sample_event__type);
587         if (err < 0)
588                 goto out;
589         err = PyType_Ready(&pyrf_context_switch_event__type);
590         if (err < 0)
591                 goto out;
592 out:
593         return err;
594 }
595
596 static PyTypeObject *pyrf_event__type[] = {
597         [PERF_RECORD_MMAP]       = &pyrf_mmap_event__type,
598         [PERF_RECORD_LOST]       = &pyrf_lost_event__type,
599         [PERF_RECORD_COMM]       = &pyrf_comm_event__type,
600         [PERF_RECORD_EXIT]       = &pyrf_task_event__type,
601         [PERF_RECORD_THROTTLE]   = &pyrf_throttle_event__type,
602         [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
603         [PERF_RECORD_FORK]       = &pyrf_task_event__type,
604         [PERF_RECORD_READ]       = &pyrf_read_event__type,
605         [PERF_RECORD_SAMPLE]     = &pyrf_sample_event__type,
606         [PERF_RECORD_SWITCH]     = &pyrf_context_switch_event__type,
607         [PERF_RECORD_SWITCH_CPU_WIDE]  = &pyrf_context_switch_event__type,
608 };
609
610 static PyObject *pyrf_event__new(union perf_event *event)
611 {
612         struct pyrf_event *pevent;
613         PyTypeObject *ptype;
614
615         if ((event->header.type < PERF_RECORD_MMAP ||
616              event->header.type > PERF_RECORD_SAMPLE) &&
617             !(event->header.type == PERF_RECORD_SWITCH ||
618               event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
619                 return NULL;
620
621         ptype = pyrf_event__type[event->header.type];
622         pevent = PyObject_New(struct pyrf_event, ptype);
623         if (pevent != NULL)
624                 memcpy(&pevent->event, event, event->header.size);
625         return (PyObject *)pevent;
626 }
627
628 struct pyrf_cpu_map {
629         PyObject_HEAD
630
631         struct perf_cpu_map *cpus;
632 };
633
634 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
635                               PyObject *args, PyObject *kwargs)
636 {
637         static char *kwlist[] = { "cpustr", NULL };
638         char *cpustr = NULL;
639
640         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
641                                          kwlist, &cpustr))
642                 return -1;
643
644         pcpus->cpus = perf_cpu_map__new(cpustr);
645         if (pcpus->cpus == NULL)
646                 return -1;
647         return 0;
648 }
649
650 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
651 {
652         perf_cpu_map__put(pcpus->cpus);
653         Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
654 }
655
656 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
657 {
658         struct pyrf_cpu_map *pcpus = (void *)obj;
659
660         return perf_cpu_map__nr(pcpus->cpus);
661 }
662
663 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
664 {
665         struct pyrf_cpu_map *pcpus = (void *)obj;
666
667         if (i >= perf_cpu_map__nr(pcpus->cpus))
668                 return NULL;
669
670         return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
671 }
672
673 static PySequenceMethods pyrf_cpu_map__sequence_methods = {
674         .sq_length = pyrf_cpu_map__length,
675         .sq_item   = pyrf_cpu_map__item,
676 };
677
678 static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
679
680 static PyTypeObject pyrf_cpu_map__type = {
681         PyVarObject_HEAD_INIT(NULL, 0)
682         .tp_name        = "perf.cpu_map",
683         .tp_basicsize   = sizeof(struct pyrf_cpu_map),
684         .tp_dealloc     = (destructor)pyrf_cpu_map__delete,
685         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
686         .tp_doc         = pyrf_cpu_map__doc,
687         .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
688         .tp_init        = (initproc)pyrf_cpu_map__init,
689 };
690
691 static int pyrf_cpu_map__setup_types(void)
692 {
693         pyrf_cpu_map__type.tp_new = PyType_GenericNew;
694         return PyType_Ready(&pyrf_cpu_map__type);
695 }
696
697 struct pyrf_thread_map {
698         PyObject_HEAD
699
700         struct perf_thread_map *threads;
701 };
702
703 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
704                                  PyObject *args, PyObject *kwargs)
705 {
706         static char *kwlist[] = { "pid", "tid", "uid", NULL };
707         int pid = -1, tid = -1, uid = UINT_MAX;
708
709         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
710                                          kwlist, &pid, &tid, &uid))
711                 return -1;
712
713         pthreads->threads = thread_map__new(pid, tid, uid);
714         if (pthreads->threads == NULL)
715                 return -1;
716         return 0;
717 }
718
719 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
720 {
721         perf_thread_map__put(pthreads->threads);
722         Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
723 }
724
725 static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
726 {
727         struct pyrf_thread_map *pthreads = (void *)obj;
728
729         return perf_thread_map__nr(pthreads->threads);
730 }
731
732 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
733 {
734         struct pyrf_thread_map *pthreads = (void *)obj;
735
736         if (i >= perf_thread_map__nr(pthreads->threads))
737                 return NULL;
738
739         return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
740 }
741
742 static PySequenceMethods pyrf_thread_map__sequence_methods = {
743         .sq_length = pyrf_thread_map__length,
744         .sq_item   = pyrf_thread_map__item,
745 };
746
747 static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
748
749 static PyTypeObject pyrf_thread_map__type = {
750         PyVarObject_HEAD_INIT(NULL, 0)
751         .tp_name        = "perf.thread_map",
752         .tp_basicsize   = sizeof(struct pyrf_thread_map),
753         .tp_dealloc     = (destructor)pyrf_thread_map__delete,
754         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
755         .tp_doc         = pyrf_thread_map__doc,
756         .tp_as_sequence = &pyrf_thread_map__sequence_methods,
757         .tp_init        = (initproc)pyrf_thread_map__init,
758 };
759
760 static int pyrf_thread_map__setup_types(void)
761 {
762         pyrf_thread_map__type.tp_new = PyType_GenericNew;
763         return PyType_Ready(&pyrf_thread_map__type);
764 }
765
766 struct pyrf_evsel {
767         PyObject_HEAD
768
769         struct evsel evsel;
770 };
771
772 static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
773                             PyObject *args, PyObject *kwargs)
774 {
775         struct perf_event_attr attr = {
776                 .type = PERF_TYPE_HARDWARE,
777                 .config = PERF_COUNT_HW_CPU_CYCLES,
778                 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
779         };
780         static char *kwlist[] = {
781                 "type",
782                 "config",
783                 "sample_freq",
784                 "sample_period",
785                 "sample_type",
786                 "read_format",
787                 "disabled",
788                 "inherit",
789                 "pinned",
790                 "exclusive",
791                 "exclude_user",
792                 "exclude_kernel",
793                 "exclude_hv",
794                 "exclude_idle",
795                 "mmap",
796                 "context_switch",
797                 "comm",
798                 "freq",
799                 "inherit_stat",
800                 "enable_on_exec",
801                 "task",
802                 "watermark",
803                 "precise_ip",
804                 "mmap_data",
805                 "sample_id_all",
806                 "wakeup_events",
807                 "bp_type",
808                 "bp_addr",
809                 "bp_len",
810                  NULL
811         };
812         u64 sample_period = 0;
813         u32 disabled = 0,
814             inherit = 0,
815             pinned = 0,
816             exclusive = 0,
817             exclude_user = 0,
818             exclude_kernel = 0,
819             exclude_hv = 0,
820             exclude_idle = 0,
821             mmap = 0,
822             context_switch = 0,
823             comm = 0,
824             freq = 1,
825             inherit_stat = 0,
826             enable_on_exec = 0,
827             task = 0,
828             watermark = 0,
829             precise_ip = 0,
830             mmap_data = 0,
831             sample_id_all = 1;
832         int idx = 0;
833
834         if (!PyArg_ParseTupleAndKeywords(args, kwargs,
835                                          "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
836                                          &attr.type, &attr.config, &attr.sample_freq,
837                                          &sample_period, &attr.sample_type,
838                                          &attr.read_format, &disabled, &inherit,
839                                          &pinned, &exclusive, &exclude_user,
840                                          &exclude_kernel, &exclude_hv, &exclude_idle,
841                                          &mmap, &context_switch, &comm, &freq, &inherit_stat,
842                                          &enable_on_exec, &task, &watermark,
843                                          &precise_ip, &mmap_data, &sample_id_all,
844                                          &attr.wakeup_events, &attr.bp_type,
845                                          &attr.bp_addr, &attr.bp_len, &idx))
846                 return -1;
847
848         /* union... */
849         if (sample_period != 0) {
850                 if (attr.sample_freq != 0)
851                         return -1; /* FIXME: throw right exception */
852                 attr.sample_period = sample_period;
853         }
854
855         /* Bitfields */
856         attr.disabled       = disabled;
857         attr.inherit        = inherit;
858         attr.pinned         = pinned;
859         attr.exclusive      = exclusive;
860         attr.exclude_user   = exclude_user;
861         attr.exclude_kernel = exclude_kernel;
862         attr.exclude_hv     = exclude_hv;
863         attr.exclude_idle   = exclude_idle;
864         attr.mmap           = mmap;
865         attr.context_switch = context_switch;
866         attr.comm           = comm;
867         attr.freq           = freq;
868         attr.inherit_stat   = inherit_stat;
869         attr.enable_on_exec = enable_on_exec;
870         attr.task           = task;
871         attr.watermark      = watermark;
872         attr.precise_ip     = precise_ip;
873         attr.mmap_data      = mmap_data;
874         attr.sample_id_all  = sample_id_all;
875         attr.size           = sizeof(attr);
876
877         evsel__init(&pevsel->evsel, &attr, idx);
878         return 0;
879 }
880
881 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
882 {
883         evsel__exit(&pevsel->evsel);
884         Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
885 }
886
887 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
888                                   PyObject *args, PyObject *kwargs)
889 {
890         struct evsel *evsel = &pevsel->evsel;
891         struct perf_cpu_map *cpus = NULL;
892         struct perf_thread_map *threads = NULL;
893         PyObject *pcpus = NULL, *pthreads = NULL;
894         int group = 0, inherit = 0;
895         static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
896
897         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
898                                          &pcpus, &pthreads, &group, &inherit))
899                 return NULL;
900
901         if (pthreads != NULL)
902                 threads = ((struct pyrf_thread_map *)pthreads)->threads;
903
904         if (pcpus != NULL)
905                 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
906
907         evsel->core.attr.inherit = inherit;
908         /*
909          * This will group just the fds for this single evsel, to group
910          * multiple events, use evlist.open().
911          */
912         if (evsel__open(evsel, cpus, threads) < 0) {
913                 PyErr_SetFromErrno(PyExc_OSError);
914                 return NULL;
915         }
916
917         Py_INCREF(Py_None);
918         return Py_None;
919 }
920
921 static PyMethodDef pyrf_evsel__methods[] = {
922         {
923                 .ml_name  = "open",
924                 .ml_meth  = (PyCFunction)pyrf_evsel__open,
925                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
926                 .ml_doc   = PyDoc_STR("open the event selector file descriptor table.")
927         },
928         { .ml_name = NULL, }
929 };
930
931 static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
932
933 static PyTypeObject pyrf_evsel__type = {
934         PyVarObject_HEAD_INIT(NULL, 0)
935         .tp_name        = "perf.evsel",
936         .tp_basicsize   = sizeof(struct pyrf_evsel),
937         .tp_dealloc     = (destructor)pyrf_evsel__delete,
938         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
939         .tp_doc         = pyrf_evsel__doc,
940         .tp_methods     = pyrf_evsel__methods,
941         .tp_init        = (initproc)pyrf_evsel__init,
942 };
943
944 static int pyrf_evsel__setup_types(void)
945 {
946         pyrf_evsel__type.tp_new = PyType_GenericNew;
947         return PyType_Ready(&pyrf_evsel__type);
948 }
949
950 struct pyrf_evlist {
951         PyObject_HEAD
952
953         struct evlist evlist;
954 };
955
956 static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
957                              PyObject *args, PyObject *kwargs __maybe_unused)
958 {
959         PyObject *pcpus = NULL, *pthreads = NULL;
960         struct perf_cpu_map *cpus;
961         struct perf_thread_map *threads;
962
963         if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
964                 return -1;
965
966         threads = ((struct pyrf_thread_map *)pthreads)->threads;
967         cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
968         evlist__init(&pevlist->evlist, cpus, threads);
969         return 0;
970 }
971
972 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
973 {
974         evlist__exit(&pevlist->evlist);
975         Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
976 }
977
978 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
979                                    PyObject *args, PyObject *kwargs)
980 {
981         struct evlist *evlist = &pevlist->evlist;
982         static char *kwlist[] = { "pages", "overwrite", NULL };
983         int pages = 128, overwrite = false;
984
985         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
986                                          &pages, &overwrite))
987                 return NULL;
988
989         if (evlist__mmap(evlist, pages) < 0) {
990                 PyErr_SetFromErrno(PyExc_OSError);
991                 return NULL;
992         }
993
994         Py_INCREF(Py_None);
995         return Py_None;
996 }
997
998 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
999                                    PyObject *args, PyObject *kwargs)
1000 {
1001         struct evlist *evlist = &pevlist->evlist;
1002         static char *kwlist[] = { "timeout", NULL };
1003         int timeout = -1, n;
1004
1005         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
1006                 return NULL;
1007
1008         n = evlist__poll(evlist, timeout);
1009         if (n < 0) {
1010                 PyErr_SetFromErrno(PyExc_OSError);
1011                 return NULL;
1012         }
1013
1014         return Py_BuildValue("i", n);
1015 }
1016
1017 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
1018                                          PyObject *args __maybe_unused,
1019                                          PyObject *kwargs __maybe_unused)
1020 {
1021         struct evlist *evlist = &pevlist->evlist;
1022         PyObject *list = PyList_New(0);
1023         int i;
1024
1025         for (i = 0; i < evlist->core.pollfd.nr; ++i) {
1026                 PyObject *file;
1027 #if PY_MAJOR_VERSION < 3
1028                 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
1029
1030                 if (fp == NULL)
1031                         goto free_list;
1032
1033                 file = PyFile_FromFile(fp, "perf", "r", NULL);
1034 #else
1035                 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
1036                                      NULL, NULL, NULL, 0);
1037 #endif
1038                 if (file == NULL)
1039                         goto free_list;
1040
1041                 if (PyList_Append(list, file) != 0) {
1042                         Py_DECREF(file);
1043                         goto free_list;
1044                 }
1045
1046                 Py_DECREF(file);
1047         }
1048
1049         return list;
1050 free_list:
1051         return PyErr_NoMemory();
1052 }
1053
1054
1055 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
1056                                   PyObject *args,
1057                                   PyObject *kwargs __maybe_unused)
1058 {
1059         struct evlist *evlist = &pevlist->evlist;
1060         PyObject *pevsel;
1061         struct evsel *evsel;
1062
1063         if (!PyArg_ParseTuple(args, "O", &pevsel))
1064                 return NULL;
1065
1066         Py_INCREF(pevsel);
1067         evsel = &((struct pyrf_evsel *)pevsel)->evsel;
1068         evsel->core.idx = evlist->core.nr_entries;
1069         evlist__add(evlist, evsel);
1070
1071         return Py_BuildValue("i", evlist->core.nr_entries);
1072 }
1073
1074 static struct mmap *get_md(struct evlist *evlist, int cpu)
1075 {
1076         int i;
1077
1078         for (i = 0; i < evlist->core.nr_mmaps; i++) {
1079                 struct mmap *md = &evlist->mmap[i];
1080
1081                 if (md->core.cpu.cpu == cpu)
1082                         return md;
1083         }
1084
1085         return NULL;
1086 }
1087
1088 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1089                                           PyObject *args, PyObject *kwargs)
1090 {
1091         struct evlist *evlist = &pevlist->evlist;
1092         union perf_event *event;
1093         int sample_id_all = 1, cpu;
1094         static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1095         struct mmap *md;
1096         int err;
1097
1098         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1099                                          &cpu, &sample_id_all))
1100                 return NULL;
1101
1102         md = get_md(evlist, cpu);
1103         if (!md)
1104                 return NULL;
1105
1106         if (perf_mmap__read_init(&md->core) < 0)
1107                 goto end;
1108
1109         event = perf_mmap__read_event(&md->core);
1110         if (event != NULL) {
1111                 PyObject *pyevent = pyrf_event__new(event);
1112                 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1113                 struct evsel *evsel;
1114
1115                 if (pyevent == NULL)
1116                         return PyErr_NoMemory();
1117
1118                 evsel = evlist__event2evsel(evlist, event);
1119                 if (!evsel) {
1120                         Py_INCREF(Py_None);
1121                         return Py_None;
1122                 }
1123
1124                 pevent->evsel = evsel;
1125
1126                 err = evsel__parse_sample(evsel, event, &pevent->sample);
1127
1128                 /* Consume the even only after we parsed it out. */
1129                 perf_mmap__consume(&md->core);
1130
1131                 if (err)
1132                         return PyErr_Format(PyExc_OSError,
1133                                             "perf: can't parse sample, err=%d", err);
1134                 return pyevent;
1135         }
1136 end:
1137         Py_INCREF(Py_None);
1138         return Py_None;
1139 }
1140
1141 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1142                                    PyObject *args, PyObject *kwargs)
1143 {
1144         struct evlist *evlist = &pevlist->evlist;
1145
1146         if (evlist__open(evlist) < 0) {
1147                 PyErr_SetFromErrno(PyExc_OSError);
1148                 return NULL;
1149         }
1150
1151         Py_INCREF(Py_None);
1152         return Py_None;
1153 }
1154
1155 static PyMethodDef pyrf_evlist__methods[] = {
1156         {
1157                 .ml_name  = "mmap",
1158                 .ml_meth  = (PyCFunction)pyrf_evlist__mmap,
1159                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1160                 .ml_doc   = PyDoc_STR("mmap the file descriptor table.")
1161         },
1162         {
1163                 .ml_name  = "open",
1164                 .ml_meth  = (PyCFunction)pyrf_evlist__open,
1165                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1166                 .ml_doc   = PyDoc_STR("open the file descriptors.")
1167         },
1168         {
1169                 .ml_name  = "poll",
1170                 .ml_meth  = (PyCFunction)pyrf_evlist__poll,
1171                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1172                 .ml_doc   = PyDoc_STR("poll the file descriptor table.")
1173         },
1174         {
1175                 .ml_name  = "get_pollfd",
1176                 .ml_meth  = (PyCFunction)pyrf_evlist__get_pollfd,
1177                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1178                 .ml_doc   = PyDoc_STR("get the poll file descriptor table.")
1179         },
1180         {
1181                 .ml_name  = "add",
1182                 .ml_meth  = (PyCFunction)pyrf_evlist__add,
1183                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1184                 .ml_doc   = PyDoc_STR("adds an event selector to the list.")
1185         },
1186         {
1187                 .ml_name  = "read_on_cpu",
1188                 .ml_meth  = (PyCFunction)pyrf_evlist__read_on_cpu,
1189                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1190                 .ml_doc   = PyDoc_STR("reads an event.")
1191         },
1192         { .ml_name = NULL, }
1193 };
1194
1195 static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1196 {
1197         struct pyrf_evlist *pevlist = (void *)obj;
1198
1199         return pevlist->evlist.core.nr_entries;
1200 }
1201
1202 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1203 {
1204         struct pyrf_evlist *pevlist = (void *)obj;
1205         struct evsel *pos;
1206
1207         if (i >= pevlist->evlist.core.nr_entries)
1208                 return NULL;
1209
1210         evlist__for_each_entry(&pevlist->evlist, pos) {
1211                 if (i-- == 0)
1212                         break;
1213         }
1214
1215         return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1216 }
1217
1218 static PySequenceMethods pyrf_evlist__sequence_methods = {
1219         .sq_length = pyrf_evlist__length,
1220         .sq_item   = pyrf_evlist__item,
1221 };
1222
1223 static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1224
1225 static PyTypeObject pyrf_evlist__type = {
1226         PyVarObject_HEAD_INIT(NULL, 0)
1227         .tp_name        = "perf.evlist",
1228         .tp_basicsize   = sizeof(struct pyrf_evlist),
1229         .tp_dealloc     = (destructor)pyrf_evlist__delete,
1230         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1231         .tp_as_sequence = &pyrf_evlist__sequence_methods,
1232         .tp_doc         = pyrf_evlist__doc,
1233         .tp_methods     = pyrf_evlist__methods,
1234         .tp_init        = (initproc)pyrf_evlist__init,
1235 };
1236
1237 static int pyrf_evlist__setup_types(void)
1238 {
1239         pyrf_evlist__type.tp_new = PyType_GenericNew;
1240         return PyType_Ready(&pyrf_evlist__type);
1241 }
1242
1243 #define PERF_CONST(name) { #name, PERF_##name }
1244
1245 static struct {
1246         const char *name;
1247         int         value;
1248 } perf__constants[] = {
1249         PERF_CONST(TYPE_HARDWARE),
1250         PERF_CONST(TYPE_SOFTWARE),
1251         PERF_CONST(TYPE_TRACEPOINT),
1252         PERF_CONST(TYPE_HW_CACHE),
1253         PERF_CONST(TYPE_RAW),
1254         PERF_CONST(TYPE_BREAKPOINT),
1255
1256         PERF_CONST(COUNT_HW_CPU_CYCLES),
1257         PERF_CONST(COUNT_HW_INSTRUCTIONS),
1258         PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1259         PERF_CONST(COUNT_HW_CACHE_MISSES),
1260         PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1261         PERF_CONST(COUNT_HW_BRANCH_MISSES),
1262         PERF_CONST(COUNT_HW_BUS_CYCLES),
1263         PERF_CONST(COUNT_HW_CACHE_L1D),
1264         PERF_CONST(COUNT_HW_CACHE_L1I),
1265         PERF_CONST(COUNT_HW_CACHE_LL),
1266         PERF_CONST(COUNT_HW_CACHE_DTLB),
1267         PERF_CONST(COUNT_HW_CACHE_ITLB),
1268         PERF_CONST(COUNT_HW_CACHE_BPU),
1269         PERF_CONST(COUNT_HW_CACHE_OP_READ),
1270         PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1271         PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1272         PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1273         PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1274
1275         PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1276         PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1277
1278         PERF_CONST(COUNT_SW_CPU_CLOCK),
1279         PERF_CONST(COUNT_SW_TASK_CLOCK),
1280         PERF_CONST(COUNT_SW_PAGE_FAULTS),
1281         PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1282         PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1283         PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1284         PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1285         PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1286         PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1287         PERF_CONST(COUNT_SW_DUMMY),
1288
1289         PERF_CONST(SAMPLE_IP),
1290         PERF_CONST(SAMPLE_TID),
1291         PERF_CONST(SAMPLE_TIME),
1292         PERF_CONST(SAMPLE_ADDR),
1293         PERF_CONST(SAMPLE_READ),
1294         PERF_CONST(SAMPLE_CALLCHAIN),
1295         PERF_CONST(SAMPLE_ID),
1296         PERF_CONST(SAMPLE_CPU),
1297         PERF_CONST(SAMPLE_PERIOD),
1298         PERF_CONST(SAMPLE_STREAM_ID),
1299         PERF_CONST(SAMPLE_RAW),
1300
1301         PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1302         PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1303         PERF_CONST(FORMAT_ID),
1304         PERF_CONST(FORMAT_GROUP),
1305
1306         PERF_CONST(RECORD_MMAP),
1307         PERF_CONST(RECORD_LOST),
1308         PERF_CONST(RECORD_COMM),
1309         PERF_CONST(RECORD_EXIT),
1310         PERF_CONST(RECORD_THROTTLE),
1311         PERF_CONST(RECORD_UNTHROTTLE),
1312         PERF_CONST(RECORD_FORK),
1313         PERF_CONST(RECORD_READ),
1314         PERF_CONST(RECORD_SAMPLE),
1315         PERF_CONST(RECORD_MMAP2),
1316         PERF_CONST(RECORD_AUX),
1317         PERF_CONST(RECORD_ITRACE_START),
1318         PERF_CONST(RECORD_LOST_SAMPLES),
1319         PERF_CONST(RECORD_SWITCH),
1320         PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1321
1322         PERF_CONST(RECORD_MISC_SWITCH_OUT),
1323         { .name = NULL, },
1324 };
1325
1326 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1327                                   PyObject *args, PyObject *kwargs)
1328 {
1329 #ifndef HAVE_LIBTRACEEVENT
1330         return NULL;
1331 #else
1332         struct tep_event *tp_format;
1333         static char *kwlist[] = { "sys", "name", NULL };
1334         char *sys  = NULL;
1335         char *name = NULL;
1336
1337         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1338                                          &sys, &name))
1339                 return NULL;
1340
1341         tp_format = trace_event__tp_format(sys, name);
1342         if (IS_ERR(tp_format))
1343                 return _PyLong_FromLong(-1);
1344
1345         return _PyLong_FromLong(tp_format->id);
1346 #endif // HAVE_LIBTRACEEVENT
1347 }
1348
1349 static PyMethodDef perf__methods[] = {
1350         {
1351                 .ml_name  = "tracepoint",
1352                 .ml_meth  = (PyCFunction) pyrf__tracepoint,
1353                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1354                 .ml_doc   = PyDoc_STR("Get tracepoint config.")
1355         },
1356         { .ml_name = NULL, }
1357 };
1358
1359 #if PY_MAJOR_VERSION < 3
1360 PyMODINIT_FUNC initperf(void)
1361 #else
1362 PyMODINIT_FUNC PyInit_perf(void)
1363 #endif
1364 {
1365         PyObject *obj;
1366         int i;
1367         PyObject *dict;
1368 #if PY_MAJOR_VERSION < 3
1369         PyObject *module = Py_InitModule("perf", perf__methods);
1370 #else
1371         static struct PyModuleDef moduledef = {
1372                 PyModuleDef_HEAD_INIT,
1373                 "perf",                 /* m_name */
1374                 "",                     /* m_doc */
1375                 -1,                     /* m_size */
1376                 perf__methods,          /* m_methods */
1377                 NULL,                   /* m_reload */
1378                 NULL,                   /* m_traverse */
1379                 NULL,                   /* m_clear */
1380                 NULL,                   /* m_free */
1381         };
1382         PyObject *module = PyModule_Create(&moduledef);
1383 #endif
1384
1385         if (module == NULL ||
1386             pyrf_event__setup_types() < 0 ||
1387             pyrf_evlist__setup_types() < 0 ||
1388             pyrf_evsel__setup_types() < 0 ||
1389             pyrf_thread_map__setup_types() < 0 ||
1390             pyrf_cpu_map__setup_types() < 0)
1391 #if PY_MAJOR_VERSION < 3
1392                 return;
1393 #else
1394                 return module;
1395 #endif
1396
1397         /* The page_size is placed in util object. */
1398         page_size = sysconf(_SC_PAGE_SIZE);
1399
1400         Py_INCREF(&pyrf_evlist__type);
1401         PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1402
1403         Py_INCREF(&pyrf_evsel__type);
1404         PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1405
1406         Py_INCREF(&pyrf_mmap_event__type);
1407         PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1408
1409         Py_INCREF(&pyrf_lost_event__type);
1410         PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1411
1412         Py_INCREF(&pyrf_comm_event__type);
1413         PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1414
1415         Py_INCREF(&pyrf_task_event__type);
1416         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1417
1418         Py_INCREF(&pyrf_throttle_event__type);
1419         PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1420
1421         Py_INCREF(&pyrf_task_event__type);
1422         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1423
1424         Py_INCREF(&pyrf_read_event__type);
1425         PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1426
1427         Py_INCREF(&pyrf_sample_event__type);
1428         PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1429
1430         Py_INCREF(&pyrf_context_switch_event__type);
1431         PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1432
1433         Py_INCREF(&pyrf_thread_map__type);
1434         PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1435
1436         Py_INCREF(&pyrf_cpu_map__type);
1437         PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1438
1439         dict = PyModule_GetDict(module);
1440         if (dict == NULL)
1441                 goto error;
1442
1443         for (i = 0; perf__constants[i].name != NULL; i++) {
1444                 obj = _PyLong_FromLong(perf__constants[i].value);
1445                 if (obj == NULL)
1446                         goto error;
1447                 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1448                 Py_DECREF(obj);
1449         }
1450
1451 error:
1452         if (PyErr_Occurred())
1453                 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1454 #if PY_MAJOR_VERSION >= 3
1455         return module;
1456 #endif
1457 }
1458
1459 /*
1460  * Dummy, to avoid dragging all the test_attr infrastructure in the python
1461  * binding.
1462  */
1463 void test_attr__open(struct perf_event_attr *attr, pid_t pid, struct perf_cpu cpu,
1464                      int fd, int group_fd, unsigned long flags)
1465 {
1466 }
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