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 "debug.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 "util.h"
  19 #include "../perf-sys.h"
  20
  21 #if PY_MAJOR_VERSION < 3
  22 #define _PyUnicode_FromString(arg) \
  23   PyString_FromString(arg)
  24 #define _PyUnicode_AsString(arg) \
  25   PyString_AsString(arg)
  26 #define _PyUnicode_FromFormat(...) \
  27   PyString_FromFormat(__VA_ARGS__)
  28 #define _PyLong_FromLong(arg) \
  29   PyInt_FromLong(arg)
  30
  31 #else
  32
  33 #define _PyUnicode_FromString(arg) \
  34   PyUnicode_FromString(arg)
  35 #define _PyUnicode_FromFormat(...) \
  36   PyUnicode_FromFormat(__VA_ARGS__)
  37 #define _PyLong_FromLong(arg) \
  38   PyLong_FromLong(arg)
  39 #endif
  40
  41 #ifndef Py_TYPE
  42 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
  43 #endif
  44
  45 /*
  46  * Provide these two so that we don't have to link against callchain.c and
  47  * start dragging hist.c, etc.
  48  */
  49 struct callchain_param callchain_param;
  50
  51 int parse_callchain_record(const char *arg __maybe_unused,
  52                            struct callchain_param *param __maybe_unused)
  53 {
  54         return 0;
  55 }
  56
  57 /*
  58  * Support debug printing even though util/debug.c is not linked.  That means
  59  * implementing 'verbose' and 'eprintf'.
  60  */
  61 int verbose;
  62
  63 int eprintf(int level, int var, const char *fmt, ...)
  64 {
  65         va_list args;
  66         int ret = 0;
  67
  68         if (var >= level) {
  69                 va_start(args, fmt);
  70                 ret = vfprintf(stderr, fmt, args);
  71                 va_end(args);
  72         }
  73
  74         return ret;
  75 }
  76
  77 /* Define PyVarObject_HEAD_INIT for python 2.5 */
  78 #ifndef PyVarObject_HEAD_INIT
  79 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
  80 #endif
  81
  82 #if PY_MAJOR_VERSION < 3
  83 PyMODINIT_FUNC initperf(void);
  84 #else
  85 PyMODINIT_FUNC PyInit_perf(void);
  86 #endif
  87
  88 #define member_def(type, member, ptype, help) \
  89         { #member, ptype, \
  90           offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
  91           0, help }
  92
  93 #define sample_member_def(name, member, ptype, help) \
  94         { #name, ptype, \
  95           offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
  96           0, help }
  97
  98 struct pyrf_event {
  99         PyObject_HEAD
 100         struct evsel *evsel;
 101         struct perf_sample sample;
 102         union perf_event   event;
 103 };
 104
 105 #define sample_members \
 106         sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"),                     \
 107         sample_member_def(sample_pid, pid, T_INT, "event pid"),                  \
 108         sample_member_def(sample_tid, tid, T_INT, "event tid"),                  \
 109         sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"),            \
 110         sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"),                 \
 111         sample_member_def(sample_id, id, T_ULONGLONG, "event id"),                       \
 112         sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
 113         sample_member_def(sample_period, period, T_ULONGLONG, "event period"),           \
 114         sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
 115
 116 static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
 117
 118 static PyMemberDef pyrf_mmap_event__members[] = {
 119         sample_members
 120         member_def(perf_event_header, type, T_UINT, "event type"),
 121         member_def(perf_event_header, misc, T_UINT, "event misc"),
 122         member_def(perf_record_mmap, pid, T_UINT, "event pid"),
 123         member_def(perf_record_mmap, tid, T_UINT, "event tid"),
 124         member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
 125         member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
 126         member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
 127         member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
 128         { .name = NULL, },
 129 };
 130
 131 static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
 132 {
 133         PyObject *ret;
 134         char *s;
 135
 136         if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
 137                          "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
 138                          "filename: %s }",
 139                      pevent->event.mmap.pid, pevent->event.mmap.tid,
 140                      pevent->event.mmap.start, pevent->event.mmap.len,
 141                      pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
 142                 ret = PyErr_NoMemory();
 143         } else {
 144                 ret = _PyUnicode_FromString(s);
 145                 free(s);
 146         }
 147         return ret;
 148 }
 149
 150 static PyTypeObject pyrf_mmap_event__type = {
 151         PyVarObject_HEAD_INIT(NULL, 0)
 152         .tp_name        = "perf.mmap_event",
 153         .tp_basicsize   = sizeof(struct pyrf_event),
 154         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 155         .tp_doc         = pyrf_mmap_event__doc,
 156         .tp_members     = pyrf_mmap_event__members,
 157         .tp_repr        = (reprfunc)pyrf_mmap_event__repr,
 158 };
 159
 160 static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
 161
 162 static PyMemberDef pyrf_task_event__members[] = {
 163         sample_members
 164         member_def(perf_event_header, type, T_UINT, "event type"),
 165         member_def(perf_record_fork, pid, T_UINT, "event pid"),
 166         member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
 167         member_def(perf_record_fork, tid, T_UINT, "event tid"),
 168         member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
 169         member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
 170         { .name = NULL, },
 171 };
 172
 173 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
 174 {
 175         return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
 176                                    "ptid: %u, time: %" PRI_lu64 "}",
 177                                    pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
 178                                    pevent->event.fork.pid,
 179                                    pevent->event.fork.ppid,
 180                                    pevent->event.fork.tid,
 181                                    pevent->event.fork.ptid,
 182                                    pevent->event.fork.time);
 183 }
 184
 185 static PyTypeObject pyrf_task_event__type = {
 186         PyVarObject_HEAD_INIT(NULL, 0)
 187         .tp_name        = "perf.task_event",
 188         .tp_basicsize   = sizeof(struct pyrf_event),
 189         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 190         .tp_doc         = pyrf_task_event__doc,
 191         .tp_members     = pyrf_task_event__members,
 192         .tp_repr        = (reprfunc)pyrf_task_event__repr,
 193 };
 194
 195 static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
 196
 197 static PyMemberDef pyrf_comm_event__members[] = {
 198         sample_members
 199         member_def(perf_event_header, type, T_UINT, "event type"),
 200         member_def(perf_record_comm, pid, T_UINT, "event pid"),
 201         member_def(perf_record_comm, tid, T_UINT, "event tid"),
 202         member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
 203         { .name = NULL, },
 204 };
 205
 206 static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
 207 {
 208         return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
 209                                    pevent->event.comm.pid,
 210                                    pevent->event.comm.tid,
 211                                    pevent->event.comm.comm);
 212 }
 213
 214 static PyTypeObject pyrf_comm_event__type = {
 215         PyVarObject_HEAD_INIT(NULL, 0)
 216         .tp_name        = "perf.comm_event",
 217         .tp_basicsize   = sizeof(struct pyrf_event),
 218         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 219         .tp_doc         = pyrf_comm_event__doc,
 220         .tp_members     = pyrf_comm_event__members,
 221         .tp_repr        = (reprfunc)pyrf_comm_event__repr,
 222 };
 223
 224 static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
 225
 226 static PyMemberDef pyrf_throttle_event__members[] = {
 227         sample_members
 228         member_def(perf_event_header, type, T_UINT, "event type"),
 229         member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
 230         member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
 231         member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
 232         { .name = NULL, },
 233 };
 234
 235 static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
 236 {
 237         struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
 238
 239         return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
 240                                    ", stream_id: %" PRI_lu64 " }",
 241                                    pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
 242                                    te->time, te->id, te->stream_id);
 243 }
 244
 245 static PyTypeObject pyrf_throttle_event__type = {
 246         PyVarObject_HEAD_INIT(NULL, 0)
 247         .tp_name        = "perf.throttle_event",
 248         .tp_basicsize   = sizeof(struct pyrf_event),
 249         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 250         .tp_doc         = pyrf_throttle_event__doc,
 251         .tp_members     = pyrf_throttle_event__members,
 252         .tp_repr        = (reprfunc)pyrf_throttle_event__repr,
 253 };
 254
 255 static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
 256
 257 static PyMemberDef pyrf_lost_event__members[] = {
 258         sample_members
 259         member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
 260         member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
 261         { .name = NULL, },
 262 };
 263
 264 static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
 265 {
 266         PyObject *ret;
 267         char *s;
 268
 269         if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
 270                          "lost: %#" PRI_lx64 " }",
 271                      pevent->event.lost.id, pevent->event.lost.lost) < 0) {
 272                 ret = PyErr_NoMemory();
 273         } else {
 274                 ret = _PyUnicode_FromString(s);
 275                 free(s);
 276         }
 277         return ret;
 278 }
 279
 280 static PyTypeObject pyrf_lost_event__type = {
 281         PyVarObject_HEAD_INIT(NULL, 0)
 282         .tp_name        = "perf.lost_event",
 283         .tp_basicsize   = sizeof(struct pyrf_event),
 284         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 285         .tp_doc         = pyrf_lost_event__doc,
 286         .tp_members     = pyrf_lost_event__members,
 287         .tp_repr        = (reprfunc)pyrf_lost_event__repr,
 288 };
 289
 290 static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
 291
 292 static PyMemberDef pyrf_read_event__members[] = {
 293         sample_members
 294         member_def(perf_record_read, pid, T_UINT, "event pid"),
 295         member_def(perf_record_read, tid, T_UINT, "event tid"),
 296         { .name = NULL, },
 297 };
 298
 299 static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
 300 {
 301         return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
 302                                    pevent->event.read.pid,
 303                                    pevent->event.read.tid);
 304         /*
 305          * FIXME: return the array of read values,
 306          * making this method useful ;-)
 307          */
 308 }
 309
 310 static PyTypeObject pyrf_read_event__type = {
 311         PyVarObject_HEAD_INIT(NULL, 0)
 312         .tp_name        = "perf.read_event",
 313         .tp_basicsize   = sizeof(struct pyrf_event),
 314         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 315         .tp_doc         = pyrf_read_event__doc,
 316         .tp_members     = pyrf_read_event__members,
 317         .tp_repr        = (reprfunc)pyrf_read_event__repr,
 318 };
 319
 320 static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
 321
 322 static PyMemberDef pyrf_sample_event__members[] = {
 323         sample_members
 324         member_def(perf_event_header, type, T_UINT, "event type"),
 325         { .name = NULL, },
 326 };
 327
 328 static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
 329 {
 330         PyObject *ret;
 331         char *s;
 332
 333         if (asprintf(&s, "{ type: sample }") < 0) {
 334                 ret = PyErr_NoMemory();
 335         } else {
 336                 ret = _PyUnicode_FromString(s);
 337                 free(s);
 338         }
 339         return ret;
 340 }
 341
 342 static bool is_tracepoint(struct pyrf_event *pevent)
 343 {
 344         return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
 345 }
 346
 347 static PyObject*
 348 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
 349 {
 350         struct tep_handle *pevent = field->event->tep;
 351         void *data = pe->sample.raw_data;
 352         PyObject *ret = NULL;
 353         unsigned long long val;
 354         unsigned int offset, len;
 355
 356         if (field->flags & TEP_FIELD_IS_ARRAY) {
 357                 offset = field->offset;
 358                 len    = field->size;
 359                 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
 360                         val     = tep_read_number(pevent, data + offset, len);
 361                         offset  = val;
 362                         len     = offset >> 16;
 363                         offset &= 0xffff;
 364                 }
 365                 if (field->flags & TEP_FIELD_IS_STRING &&
 366                     is_printable_array(data + offset, len)) {
 367                         ret = _PyUnicode_FromString((char *)data + offset);
 368                 } else {
 369                         ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
 370                         field->flags &= ~TEP_FIELD_IS_STRING;
 371                 }
 372         } else {
 373                 val = tep_read_number(pevent, data + field->offset,
 374                                       field->size);
 375                 if (field->flags & TEP_FIELD_IS_POINTER)
 376                         ret = PyLong_FromUnsignedLong((unsigned long) val);
 377                 else if (field->flags & TEP_FIELD_IS_SIGNED)
 378                         ret = PyLong_FromLong((long) val);
 379                 else
 380                         ret = PyLong_FromUnsignedLong((unsigned long) val);
 381         }
 382
 383         return ret;
 384 }
 385
 386 static PyObject*
 387 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
 388 {
 389         const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
 390         struct evsel *evsel = pevent->evsel;
 391         struct tep_format_field *field;
 392
 393         if (!evsel->tp_format) {
 394                 struct tep_event *tp_format;
 395
 396                 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
 397                 if (!tp_format)
 398                         return NULL;
 399
 400                 evsel->tp_format = tp_format;
 401         }
 402
 403         field = tep_find_any_field(evsel->tp_format, str);
 404         if (!field)
 405                 return NULL;
 406
 407         return tracepoint_field(pevent, field);
 408 }
 409
 410 static PyObject*
 411 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
 412 {
 413         PyObject *obj = NULL;
 414
 415         if (is_tracepoint(pevent))
 416                 obj = get_tracepoint_field(pevent, attr_name);
 417
 418         return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
 419 }
 420
 421 static PyTypeObject pyrf_sample_event__type = {
 422         PyVarObject_HEAD_INIT(NULL, 0)
 423         .tp_name        = "perf.sample_event",
 424         .tp_basicsize   = sizeof(struct pyrf_event),
 425         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 426         .tp_doc         = pyrf_sample_event__doc,
 427         .tp_members     = pyrf_sample_event__members,
 428         .tp_repr        = (reprfunc)pyrf_sample_event__repr,
 429         .tp_getattro    = (getattrofunc) pyrf_sample_event__getattro,
 430 };
 431
 432 static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
 433
 434 static PyMemberDef pyrf_context_switch_event__members[] = {
 435         sample_members
 436         member_def(perf_event_header, type, T_UINT, "event type"),
 437         member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
 438         member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
 439         { .name = NULL, },
 440 };
 441
 442 static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
 443 {
 444         PyObject *ret;
 445         char *s;
 446
 447         if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
 448                      pevent->event.context_switch.next_prev_pid,
 449                      pevent->event.context_switch.next_prev_tid,
 450                      !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
 451                 ret = PyErr_NoMemory();
 452         } else {
 453                 ret = _PyUnicode_FromString(s);
 454                 free(s);
 455         }
 456         return ret;
 457 }
 458
 459 static PyTypeObject pyrf_context_switch_event__type = {
 460         PyVarObject_HEAD_INIT(NULL, 0)
 461         .tp_name        = "perf.context_switch_event",
 462         .tp_basicsize   = sizeof(struct pyrf_event),
 463         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 464         .tp_doc         = pyrf_context_switch_event__doc,
 465         .tp_members     = pyrf_context_switch_event__members,
 466         .tp_repr        = (reprfunc)pyrf_context_switch_event__repr,
 467 };
 468
 469 static int pyrf_event__setup_types(void)
 470 {
 471         int err;
 472         pyrf_mmap_event__type.tp_new =
 473         pyrf_task_event__type.tp_new =
 474         pyrf_comm_event__type.tp_new =
 475         pyrf_lost_event__type.tp_new =
 476         pyrf_read_event__type.tp_new =
 477         pyrf_sample_event__type.tp_new =
 478         pyrf_context_switch_event__type.tp_new =
 479         pyrf_throttle_event__type.tp_new = PyType_GenericNew;
 480         err = PyType_Ready(&pyrf_mmap_event__type);
 481         if (err < 0)
 482                 goto out;
 483         err = PyType_Ready(&pyrf_lost_event__type);
 484         if (err < 0)
 485                 goto out;
 486         err = PyType_Ready(&pyrf_task_event__type);
 487         if (err < 0)
 488                 goto out;
 489         err = PyType_Ready(&pyrf_comm_event__type);
 490         if (err < 0)
 491                 goto out;
 492         err = PyType_Ready(&pyrf_throttle_event__type);
 493         if (err < 0)
 494                 goto out;
 495         err = PyType_Ready(&pyrf_read_event__type);
 496         if (err < 0)
 497                 goto out;
 498         err = PyType_Ready(&pyrf_sample_event__type);
 499         if (err < 0)
 500                 goto out;
 501         err = PyType_Ready(&pyrf_context_switch_event__type);
 502         if (err < 0)
 503                 goto out;
 504 out:
 505         return err;
 506 }
 507
 508 static PyTypeObject *pyrf_event__type[] = {
 509         [PERF_RECORD_MMAP]       = &pyrf_mmap_event__type,
 510         [PERF_RECORD_LOST]       = &pyrf_lost_event__type,
 511         [PERF_RECORD_COMM]       = &pyrf_comm_event__type,
 512         [PERF_RECORD_EXIT]       = &pyrf_task_event__type,
 513         [PERF_RECORD_THROTTLE]   = &pyrf_throttle_event__type,
 514         [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
 515         [PERF_RECORD_FORK]       = &pyrf_task_event__type,
 516         [PERF_RECORD_READ]       = &pyrf_read_event__type,
 517         [PERF_RECORD_SAMPLE]     = &pyrf_sample_event__type,
 518         [PERF_RECORD_SWITCH]     = &pyrf_context_switch_event__type,
 519         [PERF_RECORD_SWITCH_CPU_WIDE]  = &pyrf_context_switch_event__type,
 520 };
 521
 522 static PyObject *pyrf_event__new(union perf_event *event)
 523 {
 524         struct pyrf_event *pevent;
 525         PyTypeObject *ptype;
 526
 527         if ((event->header.type < PERF_RECORD_MMAP ||
 528              event->header.type > PERF_RECORD_SAMPLE) &&
 529             !(event->header.type == PERF_RECORD_SWITCH ||
 530               event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
 531                 return NULL;
 532
 533         ptype = pyrf_event__type[event->header.type];
 534         pevent = PyObject_New(struct pyrf_event, ptype);
 535         if (pevent != NULL)
 536                 memcpy(&pevent->event, event, event->header.size);
 537         return (PyObject *)pevent;
 538 }
 539
 540 struct pyrf_cpu_map {
 541         PyObject_HEAD
 542
 543         struct perf_cpu_map *cpus;
 544 };
 545
 546 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
 547                               PyObject *args, PyObject *kwargs)
 548 {
 549         static char *kwlist[] = { "cpustr", NULL };
 550         char *cpustr = NULL;
 551
 552         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
 553                                          kwlist, &cpustr))
 554                 return -1;
 555
 556         pcpus->cpus = perf_cpu_map__new(cpustr);
 557         if (pcpus->cpus == NULL)
 558                 return -1;
 559         return 0;
 560 }
 561
 562 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
 563 {
 564         perf_cpu_map__put(pcpus->cpus);
 565         Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
 566 }
 567
 568 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
 569 {
 570         struct pyrf_cpu_map *pcpus = (void *)obj;
 571
 572         return pcpus->cpus->nr;
 573 }
 574
 575 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
 576 {
 577         struct pyrf_cpu_map *pcpus = (void *)obj;
 578
 579         if (i >= pcpus->cpus->nr)
 580                 return NULL;
 581
 582         return Py_BuildValue("i", pcpus->cpus->map[i]);
 583 }
 584
 585 static PySequenceMethods pyrf_cpu_map__sequence_methods = {
 586         .sq_length = pyrf_cpu_map__length,
 587         .sq_item   = pyrf_cpu_map__item,
 588 };
 589
 590 static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
 591
 592 static PyTypeObject pyrf_cpu_map__type = {
 593         PyVarObject_HEAD_INIT(NULL, 0)
 594         .tp_name        = "perf.cpu_map",
 595         .tp_basicsize   = sizeof(struct pyrf_cpu_map),
 596         .tp_dealloc     = (destructor)pyrf_cpu_map__delete,
 597         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 598         .tp_doc         = pyrf_cpu_map__doc,
 599         .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
 600         .tp_init        = (initproc)pyrf_cpu_map__init,
 601 };
 602
 603 static int pyrf_cpu_map__setup_types(void)
 604 {
 605         pyrf_cpu_map__type.tp_new = PyType_GenericNew;
 606         return PyType_Ready(&pyrf_cpu_map__type);
 607 }
 608
 609 struct pyrf_thread_map {
 610         PyObject_HEAD
 611
 612         struct perf_thread_map *threads;
 613 };
 614
 615 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
 616                                  PyObject *args, PyObject *kwargs)
 617 {
 618         static char *kwlist[] = { "pid", "tid", "uid", NULL };
 619         int pid = -1, tid = -1, uid = UINT_MAX;
 620
 621         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
 622                                          kwlist, &pid, &tid, &uid))
 623                 return -1;
 624
 625         pthreads->threads = thread_map__new(pid, tid, uid);
 626         if (pthreads->threads == NULL)
 627                 return -1;
 628         return 0;
 629 }
 630
 631 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
 632 {
 633         perf_thread_map__put(pthreads->threads);
 634         Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
 635 }
 636
 637 static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
 638 {
 639         struct pyrf_thread_map *pthreads = (void *)obj;
 640
 641         return pthreads->threads->nr;
 642 }
 643
 644 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
 645 {
 646         struct pyrf_thread_map *pthreads = (void *)obj;
 647
 648         if (i >= pthreads->threads->nr)
 649                 return NULL;
 650
 651         return Py_BuildValue("i", pthreads->threads->map[i]);
 652 }
 653
 654 static PySequenceMethods pyrf_thread_map__sequence_methods = {
 655         .sq_length = pyrf_thread_map__length,
 656         .sq_item   = pyrf_thread_map__item,
 657 };
 658
 659 static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
 660
 661 static PyTypeObject pyrf_thread_map__type = {
 662         PyVarObject_HEAD_INIT(NULL, 0)
 663         .tp_name        = "perf.thread_map",
 664         .tp_basicsize   = sizeof(struct pyrf_thread_map),
 665         .tp_dealloc     = (destructor)pyrf_thread_map__delete,
 666         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 667         .tp_doc         = pyrf_thread_map__doc,
 668         .tp_as_sequence = &pyrf_thread_map__sequence_methods,
 669         .tp_init        = (initproc)pyrf_thread_map__init,
 670 };
 671
 672 static int pyrf_thread_map__setup_types(void)
 673 {
 674         pyrf_thread_map__type.tp_new = PyType_GenericNew;
 675         return PyType_Ready(&pyrf_thread_map__type);
 676 }
 677
 678 struct pyrf_evsel {
 679         PyObject_HEAD
 680
 681         struct evsel evsel;
 682 };
 683
 684 static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
 685                             PyObject *args, PyObject *kwargs)
 686 {
 687         struct perf_event_attr attr = {
 688                 .type = PERF_TYPE_HARDWARE,
 689                 .config = PERF_COUNT_HW_CPU_CYCLES,
 690                 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
 691         };
 692         static char *kwlist[] = {
 693                 "type",
 694                 "config",
 695                 "sample_freq",
 696                 "sample_period",
 697                 "sample_type",
 698                 "read_format",
 699                 "disabled",
 700                 "inherit",
 701                 "pinned",
 702                 "exclusive",
 703                 "exclude_user",
 704                 "exclude_kernel",
 705                 "exclude_hv",
 706                 "exclude_idle",
 707                 "mmap",
 708                 "context_switch",
 709                 "comm",
 710                 "freq",
 711                 "inherit_stat",
 712                 "enable_on_exec",
 713                 "task",
 714                 "watermark",
 715                 "precise_ip",
 716                 "mmap_data",
 717                 "sample_id_all",
 718                 "wakeup_events",
 719                 "bp_type",
 720                 "bp_addr",
 721                 "bp_len",
 722                  NULL
 723         };
 724         u64 sample_period = 0;
 725         u32 disabled = 0,
 726             inherit = 0,
 727             pinned = 0,
 728             exclusive = 0,
 729             exclude_user = 0,
 730             exclude_kernel = 0,
 731             exclude_hv = 0,
 732             exclude_idle = 0,
 733             mmap = 0,
 734             context_switch = 0,
 735             comm = 0,
 736             freq = 1,
 737             inherit_stat = 0,
 738             enable_on_exec = 0,
 739             task = 0,
 740             watermark = 0,
 741             precise_ip = 0,
 742             mmap_data = 0,
 743             sample_id_all = 1;
 744         int idx = 0;
 745
 746         if (!PyArg_ParseTupleAndKeywords(args, kwargs,
 747                                          "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
 748                                          &attr.type, &attr.config, &attr.sample_freq,
 749                                          &sample_period, &attr.sample_type,
 750                                          &attr.read_format, &disabled, &inherit,
 751                                          &pinned, &exclusive, &exclude_user,
 752                                          &exclude_kernel, &exclude_hv, &exclude_idle,
 753                                          &mmap, &context_switch, &comm, &freq, &inherit_stat,
 754                                          &enable_on_exec, &task, &watermark,
 755                                          &precise_ip, &mmap_data, &sample_id_all,
 756                                          &attr.wakeup_events, &attr.bp_type,
 757                                          &attr.bp_addr, &attr.bp_len, &idx))
 758                 return -1;
 759
 760         /* union... */
 761         if (sample_period != 0) {
 762                 if (attr.sample_freq != 0)
 763                         return -1; /* FIXME: throw right exception */
 764                 attr.sample_period = sample_period;
 765         }
 766
 767         /* Bitfields */
 768         attr.disabled       = disabled;
 769         attr.inherit        = inherit;
 770         attr.pinned         = pinned;
 771         attr.exclusive      = exclusive;
 772         attr.exclude_user   = exclude_user;
 773         attr.exclude_kernel = exclude_kernel;
 774         attr.exclude_hv     = exclude_hv;
 775         attr.exclude_idle   = exclude_idle;
 776         attr.mmap           = mmap;
 777         attr.context_switch = context_switch;
 778         attr.comm           = comm;
 779         attr.freq           = freq;
 780         attr.inherit_stat   = inherit_stat;
 781         attr.enable_on_exec = enable_on_exec;
 782         attr.task           = task;
 783         attr.watermark      = watermark;
 784         attr.precise_ip     = precise_ip;
 785         attr.mmap_data      = mmap_data;
 786         attr.sample_id_all  = sample_id_all;
 787         attr.size           = sizeof(attr);
 788
 789         evsel__init(&pevsel->evsel, &attr, idx);
 790         return 0;
 791 }
 792
 793 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
 794 {
 795         perf_evsel__exit(&pevsel->evsel);
 796         Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
 797 }
 798
 799 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
 800                                   PyObject *args, PyObject *kwargs)
 801 {
 802         struct evsel *evsel = &pevsel->evsel;
 803         struct perf_cpu_map *cpus = NULL;
 804         struct perf_thread_map *threads = NULL;
 805         PyObject *pcpus = NULL, *pthreads = NULL;
 806         int group = 0, inherit = 0;
 807         static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
 808
 809         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
 810                                          &pcpus, &pthreads, &group, &inherit))
 811                 return NULL;
 812
 813         if (pthreads != NULL)
 814                 threads = ((struct pyrf_thread_map *)pthreads)->threads;
 815
 816         if (pcpus != NULL)
 817                 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
 818
 819         evsel->core.attr.inherit = inherit;
 820         /*
 821          * This will group just the fds for this single evsel, to group
 822          * multiple events, use evlist.open().
 823          */
 824         if (evsel__open(evsel, cpus, threads) < 0) {
 825                 PyErr_SetFromErrno(PyExc_OSError);
 826                 return NULL;
 827         }
 828
 829         Py_INCREF(Py_None);
 830         return Py_None;
 831 }
 832
 833 static PyMethodDef pyrf_evsel__methods[] = {
 834         {
 835                 .ml_name  = "open",
 836                 .ml_meth  = (PyCFunction)pyrf_evsel__open,
 837                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
 838                 .ml_doc   = PyDoc_STR("open the event selector file descriptor table.")
 839         },
 840         { .ml_name = NULL, }
 841 };
 842
 843 static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
 844
 845 static PyTypeObject pyrf_evsel__type = {
 846         PyVarObject_HEAD_INIT(NULL, 0)
 847         .tp_name        = "perf.evsel",
 848         .tp_basicsize   = sizeof(struct pyrf_evsel),
 849         .tp_dealloc     = (destructor)pyrf_evsel__delete,
 850         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 851         .tp_doc         = pyrf_evsel__doc,
 852         .tp_methods     = pyrf_evsel__methods,
 853         .tp_init        = (initproc)pyrf_evsel__init,
 854 };
 855
 856 static int pyrf_evsel__setup_types(void)
 857 {
 858         pyrf_evsel__type.tp_new = PyType_GenericNew;
 859         return PyType_Ready(&pyrf_evsel__type);
 860 }
 861
 862 struct pyrf_evlist {
 863         PyObject_HEAD
 864
 865         struct evlist evlist;
 866 };
 867
 868 static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
 869                              PyObject *args, PyObject *kwargs __maybe_unused)
 870 {
 871         PyObject *pcpus = NULL, *pthreads = NULL;
 872         struct perf_cpu_map *cpus;
 873         struct perf_thread_map *threads;
 874
 875         if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
 876                 return -1;
 877
 878         threads = ((struct pyrf_thread_map *)pthreads)->threads;
 879         cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
 880         evlist__init(&pevlist->evlist, cpus, threads);
 881         return 0;
 882 }
 883
 884 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
 885 {
 886         perf_evlist__exit(&pevlist->evlist);
 887         Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
 888 }
 889
 890 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
 891                                    PyObject *args, PyObject *kwargs)
 892 {
 893         struct evlist *evlist = &pevlist->evlist;
 894         static char *kwlist[] = { "pages", "overwrite", NULL };
 895         int pages = 128, overwrite = false;
 896
 897         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
 898                                          &pages, &overwrite))
 899                 return NULL;
 900
 901         if (perf_evlist__mmap(evlist, pages) < 0) {
 902                 PyErr_SetFromErrno(PyExc_OSError);
 903                 return NULL;
 904         }
 905
 906         Py_INCREF(Py_None);
 907         return Py_None;
 908 }
 909
 910 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
 911                                    PyObject *args, PyObject *kwargs)
 912 {
 913         struct evlist *evlist = &pevlist->evlist;
 914         static char *kwlist[] = { "timeout", NULL };
 915         int timeout = -1, n;
 916
 917         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
 918                 return NULL;
 919
 920         n = perf_evlist__poll(evlist, timeout);
 921         if (n < 0) {
 922                 PyErr_SetFromErrno(PyExc_OSError);
 923                 return NULL;
 924         }
 925
 926         return Py_BuildValue("i", n);
 927 }
 928
 929 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
 930                                          PyObject *args __maybe_unused,
 931                                          PyObject *kwargs __maybe_unused)
 932 {
 933         struct evlist *evlist = &pevlist->evlist;
 934         PyObject *list = PyList_New(0);
 935         int i;
 936
 937         for (i = 0; i < evlist->pollfd.nr; ++i) {
 938                 PyObject *file;
 939 #if PY_MAJOR_VERSION < 3
 940                 FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r");
 941
 942                 if (fp == NULL)
 943                         goto free_list;
 944
 945                 file = PyFile_FromFile(fp, "perf", "r", NULL);
 946 #else
 947                 file = PyFile_FromFd(evlist->pollfd.entries[i].fd, "perf", "r", -1,
 948                                      NULL, NULL, NULL, 0);
 949 #endif
 950                 if (file == NULL)
 951                         goto free_list;
 952
 953                 if (PyList_Append(list, file) != 0) {
 954                         Py_DECREF(file);
 955                         goto free_list;
 956                 }
 957
 958                 Py_DECREF(file);
 959         }
 960
 961         return list;
 962 free_list:
 963         return PyErr_NoMemory();
 964 }
 965
 966
 967 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
 968                                   PyObject *args,
 969                                   PyObject *kwargs __maybe_unused)
 970 {
 971         struct evlist *evlist = &pevlist->evlist;
 972         PyObject *pevsel;
 973         struct evsel *evsel;
 974
 975         if (!PyArg_ParseTuple(args, "O", &pevsel))
 976                 return NULL;
 977
 978         Py_INCREF(pevsel);
 979         evsel = &((struct pyrf_evsel *)pevsel)->evsel;
 980         evsel->idx = evlist->core.nr_entries;
 981         evlist__add(evlist, evsel);
 982
 983         return Py_BuildValue("i", evlist->core.nr_entries);
 984 }
 985
 986 static struct perf_mmap *get_md(struct evlist *evlist, int cpu)
 987 {
 988         int i;
 989
 990         for (i = 0; i < evlist->nr_mmaps; i++) {
 991                 struct perf_mmap *md = &evlist->mmap[i];
 992
 993                 if (md->cpu == cpu)
 994                         return md;
 995         }
 996
 997         return NULL;
 998 }
 999
1000 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1001                                           PyObject *args, PyObject *kwargs)
1002 {
1003         struct evlist *evlist = &pevlist->evlist;
1004         union perf_event *event;
1005         int sample_id_all = 1, cpu;
1006         static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1007         struct perf_mmap *md;
1008         int err;
1009
1010         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1011                                          &cpu, &sample_id_all))
1012                 return NULL;
1013
1014         md = get_md(evlist, cpu);
1015         if (!md)
1016                 return NULL;
1017
1018         if (perf_mmap__read_init(md) < 0)
1019                 goto end;
1020
1021         event = perf_mmap__read_event(md);
1022         if (event != NULL) {
1023                 PyObject *pyevent = pyrf_event__new(event);
1024                 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1025                 struct evsel *evsel;
1026
1027                 if (pyevent == NULL)
1028                         return PyErr_NoMemory();
1029
1030                 evsel = perf_evlist__event2evsel(evlist, event);
1031                 if (!evsel) {
1032                         Py_INCREF(Py_None);
1033                         return Py_None;
1034                 }
1035
1036                 pevent->evsel = evsel;
1037
1038                 err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
1039
1040                 /* Consume the even only after we parsed it out. */
1041                 perf_mmap__consume(md);
1042
1043                 if (err)
1044                         return PyErr_Format(PyExc_OSError,
1045                                             "perf: can't parse sample, err=%d", err);
1046                 return pyevent;
1047         }
1048 end:
1049         Py_INCREF(Py_None);
1050         return Py_None;
1051 }
1052
1053 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1054                                    PyObject *args, PyObject *kwargs)
1055 {
1056         struct evlist *evlist = &pevlist->evlist;
1057         int group = 0;
1058         static char *kwlist[] = { "group", NULL };
1059
1060         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1061                 return NULL;
1062
1063         if (group)
1064                 perf_evlist__set_leader(evlist);
1065
1066         if (evlist__open(evlist) < 0) {
1067                 PyErr_SetFromErrno(PyExc_OSError);
1068                 return NULL;
1069         }
1070
1071         Py_INCREF(Py_None);
1072         return Py_None;
1073 }
1074
1075 static PyMethodDef pyrf_evlist__methods[] = {
1076         {
1077                 .ml_name  = "mmap",
1078                 .ml_meth  = (PyCFunction)pyrf_evlist__mmap,
1079                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1080                 .ml_doc   = PyDoc_STR("mmap the file descriptor table.")
1081         },
1082         {
1083                 .ml_name  = "open",
1084                 .ml_meth  = (PyCFunction)pyrf_evlist__open,
1085                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1086                 .ml_doc   = PyDoc_STR("open the file descriptors.")
1087         },
1088         {
1089                 .ml_name  = "poll",
1090                 .ml_meth  = (PyCFunction)pyrf_evlist__poll,
1091                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1092                 .ml_doc   = PyDoc_STR("poll the file descriptor table.")
1093         },
1094         {
1095                 .ml_name  = "get_pollfd",
1096                 .ml_meth  = (PyCFunction)pyrf_evlist__get_pollfd,
1097                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1098                 .ml_doc   = PyDoc_STR("get the poll file descriptor table.")
1099         },
1100         {
1101                 .ml_name  = "add",
1102                 .ml_meth  = (PyCFunction)pyrf_evlist__add,
1103                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1104                 .ml_doc   = PyDoc_STR("adds an event selector to the list.")
1105         },
1106         {
1107                 .ml_name  = "read_on_cpu",
1108                 .ml_meth  = (PyCFunction)pyrf_evlist__read_on_cpu,
1109                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1110                 .ml_doc   = PyDoc_STR("reads an event.")
1111         },
1112         { .ml_name = NULL, }
1113 };
1114
1115 static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1116 {
1117         struct pyrf_evlist *pevlist = (void *)obj;
1118
1119         return pevlist->evlist.core.nr_entries;
1120 }
1121
1122 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1123 {
1124         struct pyrf_evlist *pevlist = (void *)obj;
1125         struct evsel *pos;
1126
1127         if (i >= pevlist->evlist.core.nr_entries)
1128                 return NULL;
1129
1130         evlist__for_each_entry(&pevlist->evlist, pos) {
1131                 if (i-- == 0)
1132                         break;
1133         }
1134
1135         return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1136 }
1137
1138 static PySequenceMethods pyrf_evlist__sequence_methods = {
1139         .sq_length = pyrf_evlist__length,
1140         .sq_item   = pyrf_evlist__item,
1141 };
1142
1143 static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1144
1145 static PyTypeObject pyrf_evlist__type = {
1146         PyVarObject_HEAD_INIT(NULL, 0)
1147         .tp_name        = "perf.evlist",
1148         .tp_basicsize   = sizeof(struct pyrf_evlist),
1149         .tp_dealloc     = (destructor)pyrf_evlist__delete,
1150         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1151         .tp_as_sequence = &pyrf_evlist__sequence_methods,
1152         .tp_doc         = pyrf_evlist__doc,
1153         .tp_methods     = pyrf_evlist__methods,
1154         .tp_init        = (initproc)pyrf_evlist__init,
1155 };
1156
1157 static int pyrf_evlist__setup_types(void)
1158 {
1159         pyrf_evlist__type.tp_new = PyType_GenericNew;
1160         return PyType_Ready(&pyrf_evlist__type);
1161 }
1162
1163 #define PERF_CONST(name) { #name, PERF_##name }
1164
1165 static struct {
1166         const char *name;
1167         int         value;
1168 } perf__constants[] = {
1169         PERF_CONST(TYPE_HARDWARE),
1170         PERF_CONST(TYPE_SOFTWARE),
1171         PERF_CONST(TYPE_TRACEPOINT),
1172         PERF_CONST(TYPE_HW_CACHE),
1173         PERF_CONST(TYPE_RAW),
1174         PERF_CONST(TYPE_BREAKPOINT),
1175
1176         PERF_CONST(COUNT_HW_CPU_CYCLES),
1177         PERF_CONST(COUNT_HW_INSTRUCTIONS),
1178         PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1179         PERF_CONST(COUNT_HW_CACHE_MISSES),
1180         PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1181         PERF_CONST(COUNT_HW_BRANCH_MISSES),
1182         PERF_CONST(COUNT_HW_BUS_CYCLES),
1183         PERF_CONST(COUNT_HW_CACHE_L1D),
1184         PERF_CONST(COUNT_HW_CACHE_L1I),
1185         PERF_CONST(COUNT_HW_CACHE_LL),
1186         PERF_CONST(COUNT_HW_CACHE_DTLB),
1187         PERF_CONST(COUNT_HW_CACHE_ITLB),
1188         PERF_CONST(COUNT_HW_CACHE_BPU),
1189         PERF_CONST(COUNT_HW_CACHE_OP_READ),
1190         PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1191         PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1192         PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1193         PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1194
1195         PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1196         PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1197
1198         PERF_CONST(COUNT_SW_CPU_CLOCK),
1199         PERF_CONST(COUNT_SW_TASK_CLOCK),
1200         PERF_CONST(COUNT_SW_PAGE_FAULTS),
1201         PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1202         PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1203         PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1204         PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1205         PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1206         PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1207         PERF_CONST(COUNT_SW_DUMMY),
1208
1209         PERF_CONST(SAMPLE_IP),
1210         PERF_CONST(SAMPLE_TID),
1211         PERF_CONST(SAMPLE_TIME),
1212         PERF_CONST(SAMPLE_ADDR),
1213         PERF_CONST(SAMPLE_READ),
1214         PERF_CONST(SAMPLE_CALLCHAIN),
1215         PERF_CONST(SAMPLE_ID),
1216         PERF_CONST(SAMPLE_CPU),
1217         PERF_CONST(SAMPLE_PERIOD),
1218         PERF_CONST(SAMPLE_STREAM_ID),
1219         PERF_CONST(SAMPLE_RAW),
1220
1221         PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1222         PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1223         PERF_CONST(FORMAT_ID),
1224         PERF_CONST(FORMAT_GROUP),
1225
1226         PERF_CONST(RECORD_MMAP),
1227         PERF_CONST(RECORD_LOST),
1228         PERF_CONST(RECORD_COMM),
1229         PERF_CONST(RECORD_EXIT),
1230         PERF_CONST(RECORD_THROTTLE),
1231         PERF_CONST(RECORD_UNTHROTTLE),
1232         PERF_CONST(RECORD_FORK),
1233         PERF_CONST(RECORD_READ),
1234         PERF_CONST(RECORD_SAMPLE),
1235         PERF_CONST(RECORD_MMAP2),
1236         PERF_CONST(RECORD_AUX),
1237         PERF_CONST(RECORD_ITRACE_START),
1238         PERF_CONST(RECORD_LOST_SAMPLES),
1239         PERF_CONST(RECORD_SWITCH),
1240         PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1241
1242         PERF_CONST(RECORD_MISC_SWITCH_OUT),
1243         { .name = NULL, },
1244 };
1245
1246 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1247                                   PyObject *args, PyObject *kwargs)
1248 {
1249         struct tep_event *tp_format;
1250         static char *kwlist[] = { "sys", "name", NULL };
1251         char *sys  = NULL;
1252         char *name = NULL;
1253
1254         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1255                                          &sys, &name))
1256                 return NULL;
1257
1258         tp_format = trace_event__tp_format(sys, name);
1259         if (IS_ERR(tp_format))
1260                 return _PyLong_FromLong(-1);
1261
1262         return _PyLong_FromLong(tp_format->id);
1263 }
1264
1265 static PyMethodDef perf__methods[] = {
1266         {
1267                 .ml_name  = "tracepoint",
1268                 .ml_meth  = (PyCFunction) pyrf__tracepoint,
1269                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1270                 .ml_doc   = PyDoc_STR("Get tracepoint config.")
1271         },
1272         { .ml_name = NULL, }
1273 };
1274
1275 #if PY_MAJOR_VERSION < 3
1276 PyMODINIT_FUNC initperf(void)
1277 #else
1278 PyMODINIT_FUNC PyInit_perf(void)
1279 #endif
1280 {
1281         PyObject *obj;
1282         int i;
1283         PyObject *dict;
1284 #if PY_MAJOR_VERSION < 3
1285         PyObject *module = Py_InitModule("perf", perf__methods);
1286 #else
1287         static struct PyModuleDef moduledef = {
1288                 PyModuleDef_HEAD_INIT,
1289                 "perf",                 /* m_name */
1290                 "",                     /* m_doc */
1291                 -1,                     /* m_size */
1292                 perf__methods,          /* m_methods */
1293                 NULL,                   /* m_reload */
1294                 NULL,                   /* m_traverse */
1295                 NULL,                   /* m_clear */
1296                 NULL,                   /* m_free */
1297         };
1298         PyObject *module = PyModule_Create(&moduledef);
1299 #endif
1300
1301         if (module == NULL ||
1302             pyrf_event__setup_types() < 0 ||
1303             pyrf_evlist__setup_types() < 0 ||
1304             pyrf_evsel__setup_types() < 0 ||
1305             pyrf_thread_map__setup_types() < 0 ||
1306             pyrf_cpu_map__setup_types() < 0)
1307 #if PY_MAJOR_VERSION < 3
1308                 return;
1309 #else
1310                 return module;
1311 #endif
1312
1313         /* The page_size is placed in util object. */
1314         page_size = sysconf(_SC_PAGE_SIZE);
1315
1316         Py_INCREF(&pyrf_evlist__type);
1317         PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1318
1319         Py_INCREF(&pyrf_evsel__type);
1320         PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1321
1322         Py_INCREF(&pyrf_mmap_event__type);
1323         PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1324
1325         Py_INCREF(&pyrf_lost_event__type);
1326         PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1327
1328         Py_INCREF(&pyrf_comm_event__type);
1329         PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1330
1331         Py_INCREF(&pyrf_task_event__type);
1332         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1333
1334         Py_INCREF(&pyrf_throttle_event__type);
1335         PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1336
1337         Py_INCREF(&pyrf_task_event__type);
1338         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1339
1340         Py_INCREF(&pyrf_read_event__type);
1341         PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1342
1343         Py_INCREF(&pyrf_sample_event__type);
1344         PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1345
1346         Py_INCREF(&pyrf_context_switch_event__type);
1347         PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1348
1349         Py_INCREF(&pyrf_thread_map__type);
1350         PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1351
1352         Py_INCREF(&pyrf_cpu_map__type);
1353         PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1354
1355         dict = PyModule_GetDict(module);
1356         if (dict == NULL)
1357                 goto error;
1358
1359         for (i = 0; perf__constants[i].name != NULL; i++) {
1360                 obj = _PyLong_FromLong(perf__constants[i].value);
1361                 if (obj == NULL)
1362                         goto error;
1363                 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1364                 Py_DECREF(obj);
1365         }
1366
1367 error:
1368         if (PyErr_Occurred())
1369                 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1370 #if PY_MAJOR_VERSION >= 3
1371         return module;
1372 #endif
1373 }
1374
1375 /*
1376  * Dummy, to avoid dragging all the test_attr infrastructure in the python
1377  * binding.
1378  */
1379 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1380                      int fd, int group_fd, unsigned long flags)
1381 {
1382 }