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powerpc: implement the new page table range API
[linux.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 <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/bpf-filter.h"
23 #include "util/env.h"
24 #include "util/pmu.h"
25 #include "util/pmus.h"
26 #include <internal/lib.h>
27 #include "util.h"
28
29 #if PY_MAJOR_VERSION < 3
30 #define _PyUnicode_FromString(arg) \
31   PyString_FromString(arg)
32 #define _PyUnicode_AsString(arg) \
33   PyString_AsString(arg)
34 #define _PyUnicode_FromFormat(...) \
35   PyString_FromFormat(__VA_ARGS__)
36 #define _PyLong_FromLong(arg) \
37   PyInt_FromLong(arg)
38
39 #else
40
41 #define _PyUnicode_FromString(arg) \
42   PyUnicode_FromString(arg)
43 #define _PyUnicode_FromFormat(...) \
44   PyUnicode_FromFormat(__VA_ARGS__)
45 #define _PyLong_FromLong(arg) \
46   PyLong_FromLong(arg)
47 #endif
48
49 #ifndef Py_TYPE
50 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
51 #endif
52
53 /*
54  * Avoid bringing in event parsing.
55  */
56 int parse_event(struct evlist *evlist __maybe_unused, const char *str __maybe_unused)
57 {
58         return 0;
59 }
60
61 /*
62  * Provide these two so that we don't have to link against callchain.c and
63  * start dragging hist.c, etc.
64  */
65 struct callchain_param callchain_param;
66
67 int parse_callchain_record(const char *arg __maybe_unused,
68                            struct callchain_param *param __maybe_unused)
69 {
70         return 0;
71 }
72
73 /*
74  * Add these not to drag util/env.c
75  */
76 struct perf_env perf_env;
77
78 const char *perf_env__cpuid(struct perf_env *env __maybe_unused)
79 {
80         return NULL;
81 }
82
83 // This one is a bit easier, wouldn't drag too much, but leave it as a stub we need it here
84 const char *perf_env__arch(struct perf_env *env __maybe_unused)
85 {
86         return NULL;
87 }
88
89 /*
90  * These ones are needed not to drag the PMU bandwagon, jevents generated
91  * pmu_sys_event_tables, etc and evsel__find_pmu() is used so far just for
92  * doing per PMU perf_event_attr.exclude_guest handling, not really needed, so
93  * far, for the perf python binding known usecases, revisit if this become
94  * necessary.
95  */
96 struct perf_pmu *evsel__find_pmu(const struct evsel *evsel __maybe_unused)
97 {
98         return NULL;
99 }
100
101 int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, ...)
102 {
103         return EOF;
104 }
105
106 int perf_pmus__num_core_pmus(void)
107 {
108         return 1;
109 }
110
111 bool evsel__is_aux_event(const struct evsel *evsel __maybe_unused)
112 {
113         return false;
114 }
115
116 /*
117  * Add this one here not to drag util/metricgroup.c
118  */
119 int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
120                                     struct rblist *new_metric_events,
121                                     struct rblist *old_metric_events)
122 {
123         return 0;
124 }
125
126 /*
127  * Add this one here not to drag util/trace-event-info.c
128  */
129 char *tracepoint_id_to_name(u64 config)
130 {
131         return NULL;
132 }
133
134 /*
135  * XXX: All these evsel destructors need some better mechanism, like a linked
136  * list of destructors registered when the relevant code indeed is used instead
137  * of having more and more calls in perf_evsel__delete(). -- acme
138  *
139  * For now, add some more:
140  *
141  * Not to drag the BPF bandwagon...
142  */
143 void bpf_counter__destroy(struct evsel *evsel);
144 int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd);
145 int bpf_counter__disable(struct evsel *evsel);
146
147 void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
148 {
149 }
150
151 int bpf_counter__install_pe(struct evsel *evsel __maybe_unused, int cpu __maybe_unused, int fd __maybe_unused)
152 {
153         return 0;
154 }
155
156 int bpf_counter__disable(struct evsel *evsel __maybe_unused)
157 {
158         return 0;
159 }
160
161 // not to drag util/bpf-filter.c
162 #ifdef HAVE_BPF_SKEL
163 int perf_bpf_filter__prepare(struct evsel *evsel __maybe_unused)
164 {
165         return 0;
166 }
167
168 int perf_bpf_filter__destroy(struct evsel *evsel __maybe_unused)
169 {
170         return 0;
171 }
172 #endif
173
174 /*
175  * Support debug printing even though util/debug.c is not linked.  That means
176  * implementing 'verbose' and 'eprintf'.
177  */
178 int verbose;
179 int debug_peo_args;
180
181 int eprintf(int level, int var, const char *fmt, ...);
182
183 int eprintf(int level, int var, const char *fmt, ...)
184 {
185         va_list args;
186         int ret = 0;
187
188         if (var >= level) {
189                 va_start(args, fmt);
190                 ret = vfprintf(stderr, fmt, args);
191                 va_end(args);
192         }
193
194         return ret;
195 }
196
197 /* Define PyVarObject_HEAD_INIT for python 2.5 */
198 #ifndef PyVarObject_HEAD_INIT
199 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
200 #endif
201
202 #if PY_MAJOR_VERSION < 3
203 PyMODINIT_FUNC initperf(void);
204 #else
205 PyMODINIT_FUNC PyInit_perf(void);
206 #endif
207
208 #define member_def(type, member, ptype, help) \
209         { #member, ptype, \
210           offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
211           0, help }
212
213 #define sample_member_def(name, member, ptype, help) \
214         { #name, ptype, \
215           offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
216           0, help }
217
218 struct pyrf_event {
219         PyObject_HEAD
220         struct evsel *evsel;
221         struct perf_sample sample;
222         union perf_event   event;
223 };
224
225 #define sample_members \
226         sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"),                     \
227         sample_member_def(sample_pid, pid, T_INT, "event pid"),                  \
228         sample_member_def(sample_tid, tid, T_INT, "event tid"),                  \
229         sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"),            \
230         sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"),                 \
231         sample_member_def(sample_id, id, T_ULONGLONG, "event id"),                       \
232         sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
233         sample_member_def(sample_period, period, T_ULONGLONG, "event period"),           \
234         sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
235
236 static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
237
238 static PyMemberDef pyrf_mmap_event__members[] = {
239         sample_members
240         member_def(perf_event_header, type, T_UINT, "event type"),
241         member_def(perf_event_header, misc, T_UINT, "event misc"),
242         member_def(perf_record_mmap, pid, T_UINT, "event pid"),
243         member_def(perf_record_mmap, tid, T_UINT, "event tid"),
244         member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
245         member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
246         member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
247         member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
248         { .name = NULL, },
249 };
250
251 static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
252 {
253         PyObject *ret;
254         char *s;
255
256         if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
257                          "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
258                          "filename: %s }",
259                      pevent->event.mmap.pid, pevent->event.mmap.tid,
260                      pevent->event.mmap.start, pevent->event.mmap.len,
261                      pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
262                 ret = PyErr_NoMemory();
263         } else {
264                 ret = _PyUnicode_FromString(s);
265                 free(s);
266         }
267         return ret;
268 }
269
270 static PyTypeObject pyrf_mmap_event__type = {
271         PyVarObject_HEAD_INIT(NULL, 0)
272         .tp_name        = "perf.mmap_event",
273         .tp_basicsize   = sizeof(struct pyrf_event),
274         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
275         .tp_doc         = pyrf_mmap_event__doc,
276         .tp_members     = pyrf_mmap_event__members,
277         .tp_repr        = (reprfunc)pyrf_mmap_event__repr,
278 };
279
280 static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
281
282 static PyMemberDef pyrf_task_event__members[] = {
283         sample_members
284         member_def(perf_event_header, type, T_UINT, "event type"),
285         member_def(perf_record_fork, pid, T_UINT, "event pid"),
286         member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
287         member_def(perf_record_fork, tid, T_UINT, "event tid"),
288         member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
289         member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
290         { .name = NULL, },
291 };
292
293 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
294 {
295         return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
296                                    "ptid: %u, time: %" PRI_lu64 "}",
297                                    pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
298                                    pevent->event.fork.pid,
299                                    pevent->event.fork.ppid,
300                                    pevent->event.fork.tid,
301                                    pevent->event.fork.ptid,
302                                    pevent->event.fork.time);
303 }
304
305 static PyTypeObject pyrf_task_event__type = {
306         PyVarObject_HEAD_INIT(NULL, 0)
307         .tp_name        = "perf.task_event",
308         .tp_basicsize   = sizeof(struct pyrf_event),
309         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
310         .tp_doc         = pyrf_task_event__doc,
311         .tp_members     = pyrf_task_event__members,
312         .tp_repr        = (reprfunc)pyrf_task_event__repr,
313 };
314
315 static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
316
317 static PyMemberDef pyrf_comm_event__members[] = {
318         sample_members
319         member_def(perf_event_header, type, T_UINT, "event type"),
320         member_def(perf_record_comm, pid, T_UINT, "event pid"),
321         member_def(perf_record_comm, tid, T_UINT, "event tid"),
322         member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
323         { .name = NULL, },
324 };
325
326 static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
327 {
328         return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
329                                    pevent->event.comm.pid,
330                                    pevent->event.comm.tid,
331                                    pevent->event.comm.comm);
332 }
333
334 static PyTypeObject pyrf_comm_event__type = {
335         PyVarObject_HEAD_INIT(NULL, 0)
336         .tp_name        = "perf.comm_event",
337         .tp_basicsize   = sizeof(struct pyrf_event),
338         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
339         .tp_doc         = pyrf_comm_event__doc,
340         .tp_members     = pyrf_comm_event__members,
341         .tp_repr        = (reprfunc)pyrf_comm_event__repr,
342 };
343
344 static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
345
346 static PyMemberDef pyrf_throttle_event__members[] = {
347         sample_members
348         member_def(perf_event_header, type, T_UINT, "event type"),
349         member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
350         member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
351         member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
352         { .name = NULL, },
353 };
354
355 static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
356 {
357         struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
358
359         return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
360                                    ", stream_id: %" PRI_lu64 " }",
361                                    pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
362                                    te->time, te->id, te->stream_id);
363 }
364
365 static PyTypeObject pyrf_throttle_event__type = {
366         PyVarObject_HEAD_INIT(NULL, 0)
367         .tp_name        = "perf.throttle_event",
368         .tp_basicsize   = sizeof(struct pyrf_event),
369         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
370         .tp_doc         = pyrf_throttle_event__doc,
371         .tp_members     = pyrf_throttle_event__members,
372         .tp_repr        = (reprfunc)pyrf_throttle_event__repr,
373 };
374
375 static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
376
377 static PyMemberDef pyrf_lost_event__members[] = {
378         sample_members
379         member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
380         member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
381         { .name = NULL, },
382 };
383
384 static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
385 {
386         PyObject *ret;
387         char *s;
388
389         if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
390                          "lost: %#" PRI_lx64 " }",
391                      pevent->event.lost.id, pevent->event.lost.lost) < 0) {
392                 ret = PyErr_NoMemory();
393         } else {
394                 ret = _PyUnicode_FromString(s);
395                 free(s);
396         }
397         return ret;
398 }
399
400 static PyTypeObject pyrf_lost_event__type = {
401         PyVarObject_HEAD_INIT(NULL, 0)
402         .tp_name        = "perf.lost_event",
403         .tp_basicsize   = sizeof(struct pyrf_event),
404         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
405         .tp_doc         = pyrf_lost_event__doc,
406         .tp_members     = pyrf_lost_event__members,
407         .tp_repr        = (reprfunc)pyrf_lost_event__repr,
408 };
409
410 static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
411
412 static PyMemberDef pyrf_read_event__members[] = {
413         sample_members
414         member_def(perf_record_read, pid, T_UINT, "event pid"),
415         member_def(perf_record_read, tid, T_UINT, "event tid"),
416         { .name = NULL, },
417 };
418
419 static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
420 {
421         return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
422                                    pevent->event.read.pid,
423                                    pevent->event.read.tid);
424         /*
425          * FIXME: return the array of read values,
426          * making this method useful ;-)
427          */
428 }
429
430 static PyTypeObject pyrf_read_event__type = {
431         PyVarObject_HEAD_INIT(NULL, 0)
432         .tp_name        = "perf.read_event",
433         .tp_basicsize   = sizeof(struct pyrf_event),
434         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
435         .tp_doc         = pyrf_read_event__doc,
436         .tp_members     = pyrf_read_event__members,
437         .tp_repr        = (reprfunc)pyrf_read_event__repr,
438 };
439
440 static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
441
442 static PyMemberDef pyrf_sample_event__members[] = {
443         sample_members
444         member_def(perf_event_header, type, T_UINT, "event type"),
445         { .name = NULL, },
446 };
447
448 static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
449 {
450         PyObject *ret;
451         char *s;
452
453         if (asprintf(&s, "{ type: sample }") < 0) {
454                 ret = PyErr_NoMemory();
455         } else {
456                 ret = _PyUnicode_FromString(s);
457                 free(s);
458         }
459         return ret;
460 }
461
462 #ifdef HAVE_LIBTRACEEVENT
463 static bool is_tracepoint(struct pyrf_event *pevent)
464 {
465         return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
466 }
467
468 static PyObject*
469 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
470 {
471         struct tep_handle *pevent = field->event->tep;
472         void *data = pe->sample.raw_data;
473         PyObject *ret = NULL;
474         unsigned long long val;
475         unsigned int offset, len;
476
477         if (field->flags & TEP_FIELD_IS_ARRAY) {
478                 offset = field->offset;
479                 len    = field->size;
480                 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
481                         val     = tep_read_number(pevent, data + offset, len);
482                         offset  = val;
483                         len     = offset >> 16;
484                         offset &= 0xffff;
485                         if (tep_field_is_relative(field->flags))
486                                 offset += field->offset + field->size;
487                 }
488                 if (field->flags & TEP_FIELD_IS_STRING &&
489                     is_printable_array(data + offset, len)) {
490                         ret = _PyUnicode_FromString((char *)data + offset);
491                 } else {
492                         ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
493                         field->flags &= ~TEP_FIELD_IS_STRING;
494                 }
495         } else {
496                 val = tep_read_number(pevent, data + field->offset,
497                                       field->size);
498                 if (field->flags & TEP_FIELD_IS_POINTER)
499                         ret = PyLong_FromUnsignedLong((unsigned long) val);
500                 else if (field->flags & TEP_FIELD_IS_SIGNED)
501                         ret = PyLong_FromLong((long) val);
502                 else
503                         ret = PyLong_FromUnsignedLong((unsigned long) val);
504         }
505
506         return ret;
507 }
508
509 static PyObject*
510 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
511 {
512         const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
513         struct evsel *evsel = pevent->evsel;
514         struct tep_format_field *field;
515
516         if (!evsel->tp_format) {
517                 struct tep_event *tp_format;
518
519                 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
520                 if (IS_ERR_OR_NULL(tp_format))
521                         return NULL;
522
523                 evsel->tp_format = tp_format;
524         }
525
526         field = tep_find_any_field(evsel->tp_format, str);
527         if (!field)
528                 return NULL;
529
530         return tracepoint_field(pevent, field);
531 }
532 #endif /* HAVE_LIBTRACEEVENT */
533
534 static PyObject*
535 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
536 {
537         PyObject *obj = NULL;
538
539 #ifdef HAVE_LIBTRACEEVENT
540         if (is_tracepoint(pevent))
541                 obj = get_tracepoint_field(pevent, attr_name);
542 #endif
543
544         return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
545 }
546
547 static PyTypeObject pyrf_sample_event__type = {
548         PyVarObject_HEAD_INIT(NULL, 0)
549         .tp_name        = "perf.sample_event",
550         .tp_basicsize   = sizeof(struct pyrf_event),
551         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
552         .tp_doc         = pyrf_sample_event__doc,
553         .tp_members     = pyrf_sample_event__members,
554         .tp_repr        = (reprfunc)pyrf_sample_event__repr,
555         .tp_getattro    = (getattrofunc) pyrf_sample_event__getattro,
556 };
557
558 static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
559
560 static PyMemberDef pyrf_context_switch_event__members[] = {
561         sample_members
562         member_def(perf_event_header, type, T_UINT, "event type"),
563         member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
564         member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
565         { .name = NULL, },
566 };
567
568 static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
569 {
570         PyObject *ret;
571         char *s;
572
573         if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
574                      pevent->event.context_switch.next_prev_pid,
575                      pevent->event.context_switch.next_prev_tid,
576                      !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
577                 ret = PyErr_NoMemory();
578         } else {
579                 ret = _PyUnicode_FromString(s);
580                 free(s);
581         }
582         return ret;
583 }
584
585 static PyTypeObject pyrf_context_switch_event__type = {
586         PyVarObject_HEAD_INIT(NULL, 0)
587         .tp_name        = "perf.context_switch_event",
588         .tp_basicsize   = sizeof(struct pyrf_event),
589         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
590         .tp_doc         = pyrf_context_switch_event__doc,
591         .tp_members     = pyrf_context_switch_event__members,
592         .tp_repr        = (reprfunc)pyrf_context_switch_event__repr,
593 };
594
595 static int pyrf_event__setup_types(void)
596 {
597         int err;
598         pyrf_mmap_event__type.tp_new =
599         pyrf_task_event__type.tp_new =
600         pyrf_comm_event__type.tp_new =
601         pyrf_lost_event__type.tp_new =
602         pyrf_read_event__type.tp_new =
603         pyrf_sample_event__type.tp_new =
604         pyrf_context_switch_event__type.tp_new =
605         pyrf_throttle_event__type.tp_new = PyType_GenericNew;
606         err = PyType_Ready(&pyrf_mmap_event__type);
607         if (err < 0)
608                 goto out;
609         err = PyType_Ready(&pyrf_lost_event__type);
610         if (err < 0)
611                 goto out;
612         err = PyType_Ready(&pyrf_task_event__type);
613         if (err < 0)
614                 goto out;
615         err = PyType_Ready(&pyrf_comm_event__type);
616         if (err < 0)
617                 goto out;
618         err = PyType_Ready(&pyrf_throttle_event__type);
619         if (err < 0)
620                 goto out;
621         err = PyType_Ready(&pyrf_read_event__type);
622         if (err < 0)
623                 goto out;
624         err = PyType_Ready(&pyrf_sample_event__type);
625         if (err < 0)
626                 goto out;
627         err = PyType_Ready(&pyrf_context_switch_event__type);
628         if (err < 0)
629                 goto out;
630 out:
631         return err;
632 }
633
634 static PyTypeObject *pyrf_event__type[] = {
635         [PERF_RECORD_MMAP]       = &pyrf_mmap_event__type,
636         [PERF_RECORD_LOST]       = &pyrf_lost_event__type,
637         [PERF_RECORD_COMM]       = &pyrf_comm_event__type,
638         [PERF_RECORD_EXIT]       = &pyrf_task_event__type,
639         [PERF_RECORD_THROTTLE]   = &pyrf_throttle_event__type,
640         [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
641         [PERF_RECORD_FORK]       = &pyrf_task_event__type,
642         [PERF_RECORD_READ]       = &pyrf_read_event__type,
643         [PERF_RECORD_SAMPLE]     = &pyrf_sample_event__type,
644         [PERF_RECORD_SWITCH]     = &pyrf_context_switch_event__type,
645         [PERF_RECORD_SWITCH_CPU_WIDE]  = &pyrf_context_switch_event__type,
646 };
647
648 static PyObject *pyrf_event__new(union perf_event *event)
649 {
650         struct pyrf_event *pevent;
651         PyTypeObject *ptype;
652
653         if ((event->header.type < PERF_RECORD_MMAP ||
654              event->header.type > PERF_RECORD_SAMPLE) &&
655             !(event->header.type == PERF_RECORD_SWITCH ||
656               event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
657                 return NULL;
658
659         ptype = pyrf_event__type[event->header.type];
660         pevent = PyObject_New(struct pyrf_event, ptype);
661         if (pevent != NULL)
662                 memcpy(&pevent->event, event, event->header.size);
663         return (PyObject *)pevent;
664 }
665
666 struct pyrf_cpu_map {
667         PyObject_HEAD
668
669         struct perf_cpu_map *cpus;
670 };
671
672 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
673                               PyObject *args, PyObject *kwargs)
674 {
675         static char *kwlist[] = { "cpustr", NULL };
676         char *cpustr = NULL;
677
678         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
679                                          kwlist, &cpustr))
680                 return -1;
681
682         pcpus->cpus = perf_cpu_map__new(cpustr);
683         if (pcpus->cpus == NULL)
684                 return -1;
685         return 0;
686 }
687
688 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
689 {
690         perf_cpu_map__put(pcpus->cpus);
691         Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
692 }
693
694 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
695 {
696         struct pyrf_cpu_map *pcpus = (void *)obj;
697
698         return perf_cpu_map__nr(pcpus->cpus);
699 }
700
701 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
702 {
703         struct pyrf_cpu_map *pcpus = (void *)obj;
704
705         if (i >= perf_cpu_map__nr(pcpus->cpus))
706                 return NULL;
707
708         return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
709 }
710
711 static PySequenceMethods pyrf_cpu_map__sequence_methods = {
712         .sq_length = pyrf_cpu_map__length,
713         .sq_item   = pyrf_cpu_map__item,
714 };
715
716 static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
717
718 static PyTypeObject pyrf_cpu_map__type = {
719         PyVarObject_HEAD_INIT(NULL, 0)
720         .tp_name        = "perf.cpu_map",
721         .tp_basicsize   = sizeof(struct pyrf_cpu_map),
722         .tp_dealloc     = (destructor)pyrf_cpu_map__delete,
723         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
724         .tp_doc         = pyrf_cpu_map__doc,
725         .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
726         .tp_init        = (initproc)pyrf_cpu_map__init,
727 };
728
729 static int pyrf_cpu_map__setup_types(void)
730 {
731         pyrf_cpu_map__type.tp_new = PyType_GenericNew;
732         return PyType_Ready(&pyrf_cpu_map__type);
733 }
734
735 struct pyrf_thread_map {
736         PyObject_HEAD
737
738         struct perf_thread_map *threads;
739 };
740
741 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
742                                  PyObject *args, PyObject *kwargs)
743 {
744         static char *kwlist[] = { "pid", "tid", "uid", NULL };
745         int pid = -1, tid = -1, uid = UINT_MAX;
746
747         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
748                                          kwlist, &pid, &tid, &uid))
749                 return -1;
750
751         pthreads->threads = thread_map__new(pid, tid, uid);
752         if (pthreads->threads == NULL)
753                 return -1;
754         return 0;
755 }
756
757 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
758 {
759         perf_thread_map__put(pthreads->threads);
760         Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
761 }
762
763 static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
764 {
765         struct pyrf_thread_map *pthreads = (void *)obj;
766
767         return perf_thread_map__nr(pthreads->threads);
768 }
769
770 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
771 {
772         struct pyrf_thread_map *pthreads = (void *)obj;
773
774         if (i >= perf_thread_map__nr(pthreads->threads))
775                 return NULL;
776
777         return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
778 }
779
780 static PySequenceMethods pyrf_thread_map__sequence_methods = {
781         .sq_length = pyrf_thread_map__length,
782         .sq_item   = pyrf_thread_map__item,
783 };
784
785 static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
786
787 static PyTypeObject pyrf_thread_map__type = {
788         PyVarObject_HEAD_INIT(NULL, 0)
789         .tp_name        = "perf.thread_map",
790         .tp_basicsize   = sizeof(struct pyrf_thread_map),
791         .tp_dealloc     = (destructor)pyrf_thread_map__delete,
792         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
793         .tp_doc         = pyrf_thread_map__doc,
794         .tp_as_sequence = &pyrf_thread_map__sequence_methods,
795         .tp_init        = (initproc)pyrf_thread_map__init,
796 };
797
798 static int pyrf_thread_map__setup_types(void)
799 {
800         pyrf_thread_map__type.tp_new = PyType_GenericNew;
801         return PyType_Ready(&pyrf_thread_map__type);
802 }
803
804 struct pyrf_evsel {
805         PyObject_HEAD
806
807         struct evsel evsel;
808 };
809
810 static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
811                             PyObject *args, PyObject *kwargs)
812 {
813         struct perf_event_attr attr = {
814                 .type = PERF_TYPE_HARDWARE,
815                 .config = PERF_COUNT_HW_CPU_CYCLES,
816                 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
817         };
818         static char *kwlist[] = {
819                 "type",
820                 "config",
821                 "sample_freq",
822                 "sample_period",
823                 "sample_type",
824                 "read_format",
825                 "disabled",
826                 "inherit",
827                 "pinned",
828                 "exclusive",
829                 "exclude_user",
830                 "exclude_kernel",
831                 "exclude_hv",
832                 "exclude_idle",
833                 "mmap",
834                 "context_switch",
835                 "comm",
836                 "freq",
837                 "inherit_stat",
838                 "enable_on_exec",
839                 "task",
840                 "watermark",
841                 "precise_ip",
842                 "mmap_data",
843                 "sample_id_all",
844                 "wakeup_events",
845                 "bp_type",
846                 "bp_addr",
847                 "bp_len",
848                  NULL
849         };
850         u64 sample_period = 0;
851         u32 disabled = 0,
852             inherit = 0,
853             pinned = 0,
854             exclusive = 0,
855             exclude_user = 0,
856             exclude_kernel = 0,
857             exclude_hv = 0,
858             exclude_idle = 0,
859             mmap = 0,
860             context_switch = 0,
861             comm = 0,
862             freq = 1,
863             inherit_stat = 0,
864             enable_on_exec = 0,
865             task = 0,
866             watermark = 0,
867             precise_ip = 0,
868             mmap_data = 0,
869             sample_id_all = 1;
870         int idx = 0;
871
872         if (!PyArg_ParseTupleAndKeywords(args, kwargs,
873                                          "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
874                                          &attr.type, &attr.config, &attr.sample_freq,
875                                          &sample_period, &attr.sample_type,
876                                          &attr.read_format, &disabled, &inherit,
877                                          &pinned, &exclusive, &exclude_user,
878                                          &exclude_kernel, &exclude_hv, &exclude_idle,
879                                          &mmap, &context_switch, &comm, &freq, &inherit_stat,
880                                          &enable_on_exec, &task, &watermark,
881                                          &precise_ip, &mmap_data, &sample_id_all,
882                                          &attr.wakeup_events, &attr.bp_type,
883                                          &attr.bp_addr, &attr.bp_len, &idx))
884                 return -1;
885
886         /* union... */
887         if (sample_period != 0) {
888                 if (attr.sample_freq != 0)
889                         return -1; /* FIXME: throw right exception */
890                 attr.sample_period = sample_period;
891         }
892
893         /* Bitfields */
894         attr.disabled       = disabled;
895         attr.inherit        = inherit;
896         attr.pinned         = pinned;
897         attr.exclusive      = exclusive;
898         attr.exclude_user   = exclude_user;
899         attr.exclude_kernel = exclude_kernel;
900         attr.exclude_hv     = exclude_hv;
901         attr.exclude_idle   = exclude_idle;
902         attr.mmap           = mmap;
903         attr.context_switch = context_switch;
904         attr.comm           = comm;
905         attr.freq           = freq;
906         attr.inherit_stat   = inherit_stat;
907         attr.enable_on_exec = enable_on_exec;
908         attr.task           = task;
909         attr.watermark      = watermark;
910         attr.precise_ip     = precise_ip;
911         attr.mmap_data      = mmap_data;
912         attr.sample_id_all  = sample_id_all;
913         attr.size           = sizeof(attr);
914
915         evsel__init(&pevsel->evsel, &attr, idx);
916         return 0;
917 }
918
919 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
920 {
921         evsel__exit(&pevsel->evsel);
922         Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
923 }
924
925 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
926                                   PyObject *args, PyObject *kwargs)
927 {
928         struct evsel *evsel = &pevsel->evsel;
929         struct perf_cpu_map *cpus = NULL;
930         struct perf_thread_map *threads = NULL;
931         PyObject *pcpus = NULL, *pthreads = NULL;
932         int group = 0, inherit = 0;
933         static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
934
935         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
936                                          &pcpus, &pthreads, &group, &inherit))
937                 return NULL;
938
939         if (pthreads != NULL)
940                 threads = ((struct pyrf_thread_map *)pthreads)->threads;
941
942         if (pcpus != NULL)
943                 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
944
945         evsel->core.attr.inherit = inherit;
946         /*
947          * This will group just the fds for this single evsel, to group
948          * multiple events, use evlist.open().
949          */
950         if (evsel__open(evsel, cpus, threads) < 0) {
951                 PyErr_SetFromErrno(PyExc_OSError);
952                 return NULL;
953         }
954
955         Py_INCREF(Py_None);
956         return Py_None;
957 }
958
959 static PyMethodDef pyrf_evsel__methods[] = {
960         {
961                 .ml_name  = "open",
962                 .ml_meth  = (PyCFunction)pyrf_evsel__open,
963                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
964                 .ml_doc   = PyDoc_STR("open the event selector file descriptor table.")
965         },
966         { .ml_name = NULL, }
967 };
968
969 static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
970
971 static PyTypeObject pyrf_evsel__type = {
972         PyVarObject_HEAD_INIT(NULL, 0)
973         .tp_name        = "perf.evsel",
974         .tp_basicsize   = sizeof(struct pyrf_evsel),
975         .tp_dealloc     = (destructor)pyrf_evsel__delete,
976         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
977         .tp_doc         = pyrf_evsel__doc,
978         .tp_methods     = pyrf_evsel__methods,
979         .tp_init        = (initproc)pyrf_evsel__init,
980 };
981
982 static int pyrf_evsel__setup_types(void)
983 {
984         pyrf_evsel__type.tp_new = PyType_GenericNew;
985         return PyType_Ready(&pyrf_evsel__type);
986 }
987
988 struct pyrf_evlist {
989         PyObject_HEAD
990
991         struct evlist evlist;
992 };
993
994 static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
995                              PyObject *args, PyObject *kwargs __maybe_unused)
996 {
997         PyObject *pcpus = NULL, *pthreads = NULL;
998         struct perf_cpu_map *cpus;
999         struct perf_thread_map *threads;
1000
1001         if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
1002                 return -1;
1003
1004         threads = ((struct pyrf_thread_map *)pthreads)->threads;
1005         cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
1006         evlist__init(&pevlist->evlist, cpus, threads);
1007         return 0;
1008 }
1009
1010 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
1011 {
1012         evlist__exit(&pevlist->evlist);
1013         Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
1014 }
1015
1016 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
1017                                    PyObject *args, PyObject *kwargs)
1018 {
1019         struct evlist *evlist = &pevlist->evlist;
1020         static char *kwlist[] = { "pages", "overwrite", NULL };
1021         int pages = 128, overwrite = false;
1022
1023         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
1024                                          &pages, &overwrite))
1025                 return NULL;
1026
1027         if (evlist__mmap(evlist, pages) < 0) {
1028                 PyErr_SetFromErrno(PyExc_OSError);
1029                 return NULL;
1030         }
1031
1032         Py_INCREF(Py_None);
1033         return Py_None;
1034 }
1035
1036 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
1037                                    PyObject *args, PyObject *kwargs)
1038 {
1039         struct evlist *evlist = &pevlist->evlist;
1040         static char *kwlist[] = { "timeout", NULL };
1041         int timeout = -1, n;
1042
1043         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
1044                 return NULL;
1045
1046         n = evlist__poll(evlist, timeout);
1047         if (n < 0) {
1048                 PyErr_SetFromErrno(PyExc_OSError);
1049                 return NULL;
1050         }
1051
1052         return Py_BuildValue("i", n);
1053 }
1054
1055 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
1056                                          PyObject *args __maybe_unused,
1057                                          PyObject *kwargs __maybe_unused)
1058 {
1059         struct evlist *evlist = &pevlist->evlist;
1060         PyObject *list = PyList_New(0);
1061         int i;
1062
1063         for (i = 0; i < evlist->core.pollfd.nr; ++i) {
1064                 PyObject *file;
1065 #if PY_MAJOR_VERSION < 3
1066                 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
1067
1068                 if (fp == NULL)
1069                         goto free_list;
1070
1071                 file = PyFile_FromFile(fp, "perf", "r", NULL);
1072 #else
1073                 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
1074                                      NULL, NULL, NULL, 0);
1075 #endif
1076                 if (file == NULL)
1077                         goto free_list;
1078
1079                 if (PyList_Append(list, file) != 0) {
1080                         Py_DECREF(file);
1081                         goto free_list;
1082                 }
1083
1084                 Py_DECREF(file);
1085         }
1086
1087         return list;
1088 free_list:
1089         return PyErr_NoMemory();
1090 }
1091
1092
1093 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
1094                                   PyObject *args,
1095                                   PyObject *kwargs __maybe_unused)
1096 {
1097         struct evlist *evlist = &pevlist->evlist;
1098         PyObject *pevsel;
1099         struct evsel *evsel;
1100
1101         if (!PyArg_ParseTuple(args, "O", &pevsel))
1102                 return NULL;
1103
1104         Py_INCREF(pevsel);
1105         evsel = &((struct pyrf_evsel *)pevsel)->evsel;
1106         evsel->core.idx = evlist->core.nr_entries;
1107         evlist__add(evlist, evsel);
1108
1109         return Py_BuildValue("i", evlist->core.nr_entries);
1110 }
1111
1112 static struct mmap *get_md(struct evlist *evlist, int cpu)
1113 {
1114         int i;
1115
1116         for (i = 0; i < evlist->core.nr_mmaps; i++) {
1117                 struct mmap *md = &evlist->mmap[i];
1118
1119                 if (md->core.cpu.cpu == cpu)
1120                         return md;
1121         }
1122
1123         return NULL;
1124 }
1125
1126 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1127                                           PyObject *args, PyObject *kwargs)
1128 {
1129         struct evlist *evlist = &pevlist->evlist;
1130         union perf_event *event;
1131         int sample_id_all = 1, cpu;
1132         static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1133         struct mmap *md;
1134         int err;
1135
1136         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1137                                          &cpu, &sample_id_all))
1138                 return NULL;
1139
1140         md = get_md(evlist, cpu);
1141         if (!md)
1142                 return NULL;
1143
1144         if (perf_mmap__read_init(&md->core) < 0)
1145                 goto end;
1146
1147         event = perf_mmap__read_event(&md->core);
1148         if (event != NULL) {
1149                 PyObject *pyevent = pyrf_event__new(event);
1150                 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1151                 struct evsel *evsel;
1152
1153                 if (pyevent == NULL)
1154                         return PyErr_NoMemory();
1155
1156                 evsel = evlist__event2evsel(evlist, event);
1157                 if (!evsel) {
1158                         Py_INCREF(Py_None);
1159                         return Py_None;
1160                 }
1161
1162                 pevent->evsel = evsel;
1163
1164                 err = evsel__parse_sample(evsel, event, &pevent->sample);
1165
1166                 /* Consume the even only after we parsed it out. */
1167                 perf_mmap__consume(&md->core);
1168
1169                 if (err)
1170                         return PyErr_Format(PyExc_OSError,
1171                                             "perf: can't parse sample, err=%d", err);
1172                 return pyevent;
1173         }
1174 end:
1175         Py_INCREF(Py_None);
1176         return Py_None;
1177 }
1178
1179 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1180                                    PyObject *args, PyObject *kwargs)
1181 {
1182         struct evlist *evlist = &pevlist->evlist;
1183
1184         if (evlist__open(evlist) < 0) {
1185                 PyErr_SetFromErrno(PyExc_OSError);
1186                 return NULL;
1187         }
1188
1189         Py_INCREF(Py_None);
1190         return Py_None;
1191 }
1192
1193 static PyMethodDef pyrf_evlist__methods[] = {
1194         {
1195                 .ml_name  = "mmap",
1196                 .ml_meth  = (PyCFunction)pyrf_evlist__mmap,
1197                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1198                 .ml_doc   = PyDoc_STR("mmap the file descriptor table.")
1199         },
1200         {
1201                 .ml_name  = "open",
1202                 .ml_meth  = (PyCFunction)pyrf_evlist__open,
1203                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1204                 .ml_doc   = PyDoc_STR("open the file descriptors.")
1205         },
1206         {
1207                 .ml_name  = "poll",
1208                 .ml_meth  = (PyCFunction)pyrf_evlist__poll,
1209                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1210                 .ml_doc   = PyDoc_STR("poll the file descriptor table.")
1211         },
1212         {
1213                 .ml_name  = "get_pollfd",
1214                 .ml_meth  = (PyCFunction)pyrf_evlist__get_pollfd,
1215                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1216                 .ml_doc   = PyDoc_STR("get the poll file descriptor table.")
1217         },
1218         {
1219                 .ml_name  = "add",
1220                 .ml_meth  = (PyCFunction)pyrf_evlist__add,
1221                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1222                 .ml_doc   = PyDoc_STR("adds an event selector to the list.")
1223         },
1224         {
1225                 .ml_name  = "read_on_cpu",
1226                 .ml_meth  = (PyCFunction)pyrf_evlist__read_on_cpu,
1227                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1228                 .ml_doc   = PyDoc_STR("reads an event.")
1229         },
1230         { .ml_name = NULL, }
1231 };
1232
1233 static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1234 {
1235         struct pyrf_evlist *pevlist = (void *)obj;
1236
1237         return pevlist->evlist.core.nr_entries;
1238 }
1239
1240 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1241 {
1242         struct pyrf_evlist *pevlist = (void *)obj;
1243         struct evsel *pos;
1244
1245         if (i >= pevlist->evlist.core.nr_entries)
1246                 return NULL;
1247
1248         evlist__for_each_entry(&pevlist->evlist, pos) {
1249                 if (i-- == 0)
1250                         break;
1251         }
1252
1253         return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1254 }
1255
1256 static PySequenceMethods pyrf_evlist__sequence_methods = {
1257         .sq_length = pyrf_evlist__length,
1258         .sq_item   = pyrf_evlist__item,
1259 };
1260
1261 static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1262
1263 static PyTypeObject pyrf_evlist__type = {
1264         PyVarObject_HEAD_INIT(NULL, 0)
1265         .tp_name        = "perf.evlist",
1266         .tp_basicsize   = sizeof(struct pyrf_evlist),
1267         .tp_dealloc     = (destructor)pyrf_evlist__delete,
1268         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1269         .tp_as_sequence = &pyrf_evlist__sequence_methods,
1270         .tp_doc         = pyrf_evlist__doc,
1271         .tp_methods     = pyrf_evlist__methods,
1272         .tp_init        = (initproc)pyrf_evlist__init,
1273 };
1274
1275 static int pyrf_evlist__setup_types(void)
1276 {
1277         pyrf_evlist__type.tp_new = PyType_GenericNew;
1278         return PyType_Ready(&pyrf_evlist__type);
1279 }
1280
1281 #define PERF_CONST(name) { #name, PERF_##name }
1282
1283 static struct {
1284         const char *name;
1285         int         value;
1286 } perf__constants[] = {
1287         PERF_CONST(TYPE_HARDWARE),
1288         PERF_CONST(TYPE_SOFTWARE),
1289         PERF_CONST(TYPE_TRACEPOINT),
1290         PERF_CONST(TYPE_HW_CACHE),
1291         PERF_CONST(TYPE_RAW),
1292         PERF_CONST(TYPE_BREAKPOINT),
1293
1294         PERF_CONST(COUNT_HW_CPU_CYCLES),
1295         PERF_CONST(COUNT_HW_INSTRUCTIONS),
1296         PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1297         PERF_CONST(COUNT_HW_CACHE_MISSES),
1298         PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1299         PERF_CONST(COUNT_HW_BRANCH_MISSES),
1300         PERF_CONST(COUNT_HW_BUS_CYCLES),
1301         PERF_CONST(COUNT_HW_CACHE_L1D),
1302         PERF_CONST(COUNT_HW_CACHE_L1I),
1303         PERF_CONST(COUNT_HW_CACHE_LL),
1304         PERF_CONST(COUNT_HW_CACHE_DTLB),
1305         PERF_CONST(COUNT_HW_CACHE_ITLB),
1306         PERF_CONST(COUNT_HW_CACHE_BPU),
1307         PERF_CONST(COUNT_HW_CACHE_OP_READ),
1308         PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1309         PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1310         PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1311         PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1312
1313         PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1314         PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1315
1316         PERF_CONST(COUNT_SW_CPU_CLOCK),
1317         PERF_CONST(COUNT_SW_TASK_CLOCK),
1318         PERF_CONST(COUNT_SW_PAGE_FAULTS),
1319         PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1320         PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1321         PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1322         PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1323         PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1324         PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1325         PERF_CONST(COUNT_SW_DUMMY),
1326
1327         PERF_CONST(SAMPLE_IP),
1328         PERF_CONST(SAMPLE_TID),
1329         PERF_CONST(SAMPLE_TIME),
1330         PERF_CONST(SAMPLE_ADDR),
1331         PERF_CONST(SAMPLE_READ),
1332         PERF_CONST(SAMPLE_CALLCHAIN),
1333         PERF_CONST(SAMPLE_ID),
1334         PERF_CONST(SAMPLE_CPU),
1335         PERF_CONST(SAMPLE_PERIOD),
1336         PERF_CONST(SAMPLE_STREAM_ID),
1337         PERF_CONST(SAMPLE_RAW),
1338
1339         PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1340         PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1341         PERF_CONST(FORMAT_ID),
1342         PERF_CONST(FORMAT_GROUP),
1343
1344         PERF_CONST(RECORD_MMAP),
1345         PERF_CONST(RECORD_LOST),
1346         PERF_CONST(RECORD_COMM),
1347         PERF_CONST(RECORD_EXIT),
1348         PERF_CONST(RECORD_THROTTLE),
1349         PERF_CONST(RECORD_UNTHROTTLE),
1350         PERF_CONST(RECORD_FORK),
1351         PERF_CONST(RECORD_READ),
1352         PERF_CONST(RECORD_SAMPLE),
1353         PERF_CONST(RECORD_MMAP2),
1354         PERF_CONST(RECORD_AUX),
1355         PERF_CONST(RECORD_ITRACE_START),
1356         PERF_CONST(RECORD_LOST_SAMPLES),
1357         PERF_CONST(RECORD_SWITCH),
1358         PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1359
1360         PERF_CONST(RECORD_MISC_SWITCH_OUT),
1361         { .name = NULL, },
1362 };
1363
1364 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1365                                   PyObject *args, PyObject *kwargs)
1366 {
1367 #ifndef HAVE_LIBTRACEEVENT
1368         return NULL;
1369 #else
1370         struct tep_event *tp_format;
1371         static char *kwlist[] = { "sys", "name", NULL };
1372         char *sys  = NULL;
1373         char *name = NULL;
1374
1375         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1376                                          &sys, &name))
1377                 return NULL;
1378
1379         tp_format = trace_event__tp_format(sys, name);
1380         if (IS_ERR(tp_format))
1381                 return _PyLong_FromLong(-1);
1382
1383         return _PyLong_FromLong(tp_format->id);
1384 #endif // HAVE_LIBTRACEEVENT
1385 }
1386
1387 static PyMethodDef perf__methods[] = {
1388         {
1389                 .ml_name  = "tracepoint",
1390                 .ml_meth  = (PyCFunction) pyrf__tracepoint,
1391                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1392                 .ml_doc   = PyDoc_STR("Get tracepoint config.")
1393         },
1394         { .ml_name = NULL, }
1395 };
1396
1397 #if PY_MAJOR_VERSION < 3
1398 PyMODINIT_FUNC initperf(void)
1399 #else
1400 PyMODINIT_FUNC PyInit_perf(void)
1401 #endif
1402 {
1403         PyObject *obj;
1404         int i;
1405         PyObject *dict;
1406 #if PY_MAJOR_VERSION < 3
1407         PyObject *module = Py_InitModule("perf", perf__methods);
1408 #else
1409         static struct PyModuleDef moduledef = {
1410                 PyModuleDef_HEAD_INIT,
1411                 "perf",                 /* m_name */
1412                 "",                     /* m_doc */
1413                 -1,                     /* m_size */
1414                 perf__methods,          /* m_methods */
1415                 NULL,                   /* m_reload */
1416                 NULL,                   /* m_traverse */
1417                 NULL,                   /* m_clear */
1418                 NULL,                   /* m_free */
1419         };
1420         PyObject *module = PyModule_Create(&moduledef);
1421 #endif
1422
1423         if (module == NULL ||
1424             pyrf_event__setup_types() < 0 ||
1425             pyrf_evlist__setup_types() < 0 ||
1426             pyrf_evsel__setup_types() < 0 ||
1427             pyrf_thread_map__setup_types() < 0 ||
1428             pyrf_cpu_map__setup_types() < 0)
1429 #if PY_MAJOR_VERSION < 3
1430                 return;
1431 #else
1432                 return module;
1433 #endif
1434
1435         /* The page_size is placed in util object. */
1436         page_size = sysconf(_SC_PAGE_SIZE);
1437
1438         Py_INCREF(&pyrf_evlist__type);
1439         PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1440
1441         Py_INCREF(&pyrf_evsel__type);
1442         PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1443
1444         Py_INCREF(&pyrf_mmap_event__type);
1445         PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1446
1447         Py_INCREF(&pyrf_lost_event__type);
1448         PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1449
1450         Py_INCREF(&pyrf_comm_event__type);
1451         PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1452
1453         Py_INCREF(&pyrf_task_event__type);
1454         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1455
1456         Py_INCREF(&pyrf_throttle_event__type);
1457         PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1458
1459         Py_INCREF(&pyrf_task_event__type);
1460         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1461
1462         Py_INCREF(&pyrf_read_event__type);
1463         PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1464
1465         Py_INCREF(&pyrf_sample_event__type);
1466         PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1467
1468         Py_INCREF(&pyrf_context_switch_event__type);
1469         PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1470
1471         Py_INCREF(&pyrf_thread_map__type);
1472         PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1473
1474         Py_INCREF(&pyrf_cpu_map__type);
1475         PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1476
1477         dict = PyModule_GetDict(module);
1478         if (dict == NULL)
1479                 goto error;
1480
1481         for (i = 0; perf__constants[i].name != NULL; i++) {
1482                 obj = _PyLong_FromLong(perf__constants[i].value);
1483                 if (obj == NULL)
1484                         goto error;
1485                 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1486                 Py_DECREF(obj);
1487         }
1488
1489 error:
1490         if (PyErr_Occurred())
1491                 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1492 #if PY_MAJOR_VERSION >= 3
1493         return module;
1494 #endif
1495 }
1496
1497 /*
1498  * Dummy, to avoid dragging all the test_attr infrastructure in the python
1499  * binding.
1500  */
1501 void test_attr__open(struct perf_event_attr *attr, pid_t pid, struct perf_cpu cpu,
1502                      int fd, int group_fd, unsigned long flags)
1503 {
1504 }
1505
1506 void evlist__free_stats(struct evlist *evlist)
1507 {
1508 }
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