tools/perf/util/python.c

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