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