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 "util/env.h"
  19 #include <internal/lib.h>
  20 #include "../perf-sys.h"
  21
  22 #if PY_MAJOR_VERSION < 3
  23 #define _PyUnicode_FromString(arg) \
  24   PyString_FromString(arg)
  25 #define _PyUnicode_AsString(arg) \
  26   PyString_AsString(arg)
  27 #define _PyUnicode_FromFormat(...) \
  28   PyString_FromFormat(__VA_ARGS__)
  29 #define _PyLong_FromLong(arg) \
  30   PyInt_FromLong(arg)
  31
  32 #else
  33
  34 #define _PyUnicode_FromString(arg) \
  35   PyUnicode_FromString(arg)
  36 #define _PyUnicode_FromFormat(...) \
  37   PyUnicode_FromFormat(__VA_ARGS__)
  38 #define _PyLong_FromLong(arg) \
  39   PyLong_FromLong(arg)
  40 #endif
  41
  42 #ifndef Py_TYPE
  43 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
  44 #endif
  45
  46 /*
  47  * Provide these two so that we don't have to link against callchain.c and
  48  * start dragging hist.c, etc.
  49  */
  50 struct callchain_param callchain_param;
  51
  52 int parse_callchain_record(const char *arg __maybe_unused,
  53                            struct callchain_param *param __maybe_unused)
  54 {
  55         return 0;
  56 }
  57
  58 /*
  59  * Add this one here not to drag util/env.c
  60  */
  61 struct perf_env perf_env;
  62
  63 /*
  64  * Support debug printing even though util/debug.c is not linked.  That means
  65  * implementing 'verbose' and 'eprintf'.
  66  */
  67 int verbose;
  68 int debug_peo_args;
  69
  70 int eprintf(int level, int var, const char *fmt, ...);
  71
  72 int eprintf(int level, int var, const char *fmt, ...)
  73 {
  74         va_list args;
  75         int ret = 0;
  76
  77         if (var >= level) {
  78                 va_start(args, fmt);
  79                 ret = vfprintf(stderr, fmt, args);
  80                 va_end(args);
  81         }
  82
  83         return ret;
  84 }
  85
  86 /* Define PyVarObject_HEAD_INIT for python 2.5 */
  87 #ifndef PyVarObject_HEAD_INIT
  88 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
  89 #endif
  90
  91 #if PY_MAJOR_VERSION < 3
  92 PyMODINIT_FUNC initperf(void);
  93 #else
  94 PyMODINIT_FUNC PyInit_perf(void);
  95 #endif
  96
  97 #define member_def(type, member, ptype, help) \
  98         { #member, ptype, \
  99           offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
 100           0, help }
 101
 102 #define sample_member_def(name, member, ptype, help) \
 103         { #name, ptype, \
 104           offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
 105           0, help }
 106
 107 struct pyrf_event {
 108         PyObject_HEAD
 109         struct evsel *evsel;
 110         struct perf_sample sample;
 111         union perf_event   event;
 112 };
 113
 114 #define sample_members \
 115         sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"),                     \
 116         sample_member_def(sample_pid, pid, T_INT, "event pid"),                  \
 117         sample_member_def(sample_tid, tid, T_INT, "event tid"),                  \
 118         sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"),            \
 119         sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"),                 \
 120         sample_member_def(sample_id, id, T_ULONGLONG, "event id"),                       \
 121         sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
 122         sample_member_def(sample_period, period, T_ULONGLONG, "event period"),           \
 123         sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
 124
 125 static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
 126
 127 static PyMemberDef pyrf_mmap_event__members[] = {
 128         sample_members
 129         member_def(perf_event_header, type, T_UINT, "event type"),
 130         member_def(perf_event_header, misc, T_UINT, "event misc"),
 131         member_def(perf_record_mmap, pid, T_UINT, "event pid"),
 132         member_def(perf_record_mmap, tid, T_UINT, "event tid"),
 133         member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
 134         member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
 135         member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
 136         member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
 137         { .name = NULL, },
 138 };
 139
 140 static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
 141 {
 142         PyObject *ret;
 143         char *s;
 144
 145         if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
 146                          "length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
 147                          "filename: %s }",
 148                      pevent->event.mmap.pid, pevent->event.mmap.tid,
 149                      pevent->event.mmap.start, pevent->event.mmap.len,
 150                      pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
 151                 ret = PyErr_NoMemory();
 152         } else {
 153                 ret = _PyUnicode_FromString(s);
 154                 free(s);
 155         }
 156         return ret;
 157 }
 158
 159 static PyTypeObject pyrf_mmap_event__type = {
 160         PyVarObject_HEAD_INIT(NULL, 0)
 161         .tp_name        = "perf.mmap_event",
 162         .tp_basicsize   = sizeof(struct pyrf_event),
 163         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 164         .tp_doc         = pyrf_mmap_event__doc,
 165         .tp_members     = pyrf_mmap_event__members,
 166         .tp_repr        = (reprfunc)pyrf_mmap_event__repr,
 167 };
 168
 169 static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
 170
 171 static PyMemberDef pyrf_task_event__members[] = {
 172         sample_members
 173         member_def(perf_event_header, type, T_UINT, "event type"),
 174         member_def(perf_record_fork, pid, T_UINT, "event pid"),
 175         member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
 176         member_def(perf_record_fork, tid, T_UINT, "event tid"),
 177         member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
 178         member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
 179         { .name = NULL, },
 180 };
 181
 182 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
 183 {
 184         return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
 185                                    "ptid: %u, time: %" PRI_lu64 "}",
 186                                    pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
 187                                    pevent->event.fork.pid,
 188                                    pevent->event.fork.ppid,
 189                                    pevent->event.fork.tid,
 190                                    pevent->event.fork.ptid,
 191                                    pevent->event.fork.time);
 192 }
 193
 194 static PyTypeObject pyrf_task_event__type = {
 195         PyVarObject_HEAD_INIT(NULL, 0)
 196         .tp_name        = "perf.task_event",
 197         .tp_basicsize   = sizeof(struct pyrf_event),
 198         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 199         .tp_doc         = pyrf_task_event__doc,
 200         .tp_members     = pyrf_task_event__members,
 201         .tp_repr        = (reprfunc)pyrf_task_event__repr,
 202 };
 203
 204 static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
 205
 206 static PyMemberDef pyrf_comm_event__members[] = {
 207         sample_members
 208         member_def(perf_event_header, type, T_UINT, "event type"),
 209         member_def(perf_record_comm, pid, T_UINT, "event pid"),
 210         member_def(perf_record_comm, tid, T_UINT, "event tid"),
 211         member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
 212         { .name = NULL, },
 213 };
 214
 215 static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
 216 {
 217         return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
 218                                    pevent->event.comm.pid,
 219                                    pevent->event.comm.tid,
 220                                    pevent->event.comm.comm);
 221 }
 222
 223 static PyTypeObject pyrf_comm_event__type = {
 224         PyVarObject_HEAD_INIT(NULL, 0)
 225         .tp_name        = "perf.comm_event",
 226         .tp_basicsize   = sizeof(struct pyrf_event),
 227         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 228         .tp_doc         = pyrf_comm_event__doc,
 229         .tp_members     = pyrf_comm_event__members,
 230         .tp_repr        = (reprfunc)pyrf_comm_event__repr,
 231 };
 232
 233 static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
 234
 235 static PyMemberDef pyrf_throttle_event__members[] = {
 236         sample_members
 237         member_def(perf_event_header, type, T_UINT, "event type"),
 238         member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
 239         member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
 240         member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
 241         { .name = NULL, },
 242 };
 243
 244 static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
 245 {
 246         struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
 247
 248         return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
 249                                    ", stream_id: %" PRI_lu64 " }",
 250                                    pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
 251                                    te->time, te->id, te->stream_id);
 252 }
 253
 254 static PyTypeObject pyrf_throttle_event__type = {
 255         PyVarObject_HEAD_INIT(NULL, 0)
 256         .tp_name        = "perf.throttle_event",
 257         .tp_basicsize   = sizeof(struct pyrf_event),
 258         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 259         .tp_doc         = pyrf_throttle_event__doc,
 260         .tp_members     = pyrf_throttle_event__members,
 261         .tp_repr        = (reprfunc)pyrf_throttle_event__repr,
 262 };
 263
 264 static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
 265
 266 static PyMemberDef pyrf_lost_event__members[] = {
 267         sample_members
 268         member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
 269         member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
 270         { .name = NULL, },
 271 };
 272
 273 static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
 274 {
 275         PyObject *ret;
 276         char *s;
 277
 278         if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
 279                          "lost: %#" PRI_lx64 " }",
 280                      pevent->event.lost.id, pevent->event.lost.lost) < 0) {
 281                 ret = PyErr_NoMemory();
 282         } else {
 283                 ret = _PyUnicode_FromString(s);
 284                 free(s);
 285         }
 286         return ret;
 287 }
 288
 289 static PyTypeObject pyrf_lost_event__type = {
 290         PyVarObject_HEAD_INIT(NULL, 0)
 291         .tp_name        = "perf.lost_event",
 292         .tp_basicsize   = sizeof(struct pyrf_event),
 293         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 294         .tp_doc         = pyrf_lost_event__doc,
 295         .tp_members     = pyrf_lost_event__members,
 296         .tp_repr        = (reprfunc)pyrf_lost_event__repr,
 297 };
 298
 299 static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
 300
 301 static PyMemberDef pyrf_read_event__members[] = {
 302         sample_members
 303         member_def(perf_record_read, pid, T_UINT, "event pid"),
 304         member_def(perf_record_read, tid, T_UINT, "event tid"),
 305         { .name = NULL, },
 306 };
 307
 308 static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
 309 {
 310         return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
 311                                    pevent->event.read.pid,
 312                                    pevent->event.read.tid);
 313         /*
 314          * FIXME: return the array of read values,
 315          * making this method useful ;-)
 316          */
 317 }
 318
 319 static PyTypeObject pyrf_read_event__type = {
 320         PyVarObject_HEAD_INIT(NULL, 0)
 321         .tp_name        = "perf.read_event",
 322         .tp_basicsize   = sizeof(struct pyrf_event),
 323         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 324         .tp_doc         = pyrf_read_event__doc,
 325         .tp_members     = pyrf_read_event__members,
 326         .tp_repr        = (reprfunc)pyrf_read_event__repr,
 327 };
 328
 329 static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
 330
 331 static PyMemberDef pyrf_sample_event__members[] = {
 332         sample_members
 333         member_def(perf_event_header, type, T_UINT, "event type"),
 334         { .name = NULL, },
 335 };
 336
 337 static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
 338 {
 339         PyObject *ret;
 340         char *s;
 341
 342         if (asprintf(&s, "{ type: sample }") < 0) {
 343                 ret = PyErr_NoMemory();
 344         } else {
 345                 ret = _PyUnicode_FromString(s);
 346                 free(s);
 347         }
 348         return ret;
 349 }
 350
 351 static bool is_tracepoint(struct pyrf_event *pevent)
 352 {
 353         return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
 354 }
 355
 356 static PyObject*
 357 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
 358 {
 359         struct tep_handle *pevent = field->event->tep;
 360         void *data = pe->sample.raw_data;
 361         PyObject *ret = NULL;
 362         unsigned long long val;
 363         unsigned int offset, len;
 364
 365         if (field->flags & TEP_FIELD_IS_ARRAY) {
 366                 offset = field->offset;
 367                 len    = field->size;
 368                 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
 369                         val     = tep_read_number(pevent, data + offset, len);
 370                         offset  = val;
 371                         len     = offset >> 16;
 372                         offset &= 0xffff;
 373                 }
 374                 if (field->flags & TEP_FIELD_IS_STRING &&
 375                     is_printable_array(data + offset, len)) {
 376                         ret = _PyUnicode_FromString((char *)data + offset);
 377                 } else {
 378                         ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
 379                         field->flags &= ~TEP_FIELD_IS_STRING;
 380                 }
 381         } else {
 382                 val = tep_read_number(pevent, data + field->offset,
 383                                       field->size);
 384                 if (field->flags & TEP_FIELD_IS_POINTER)
 385                         ret = PyLong_FromUnsignedLong((unsigned long) val);
 386                 else if (field->flags & TEP_FIELD_IS_SIGNED)
 387                         ret = PyLong_FromLong((long) val);
 388                 else
 389                         ret = PyLong_FromUnsignedLong((unsigned long) val);
 390         }
 391
 392         return ret;
 393 }
 394
 395 static PyObject*
 396 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
 397 {
 398         const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
 399         struct evsel *evsel = pevent->evsel;
 400         struct tep_format_field *field;
 401
 402         if (!evsel->tp_format) {
 403                 struct tep_event *tp_format;
 404
 405                 tp_format = trace_event__tp_format_id(evsel->core.attr.config);
 406                 if (!tp_format)
 407                         return NULL;
 408
 409                 evsel->tp_format = tp_format;
 410         }
 411
 412         field = tep_find_any_field(evsel->tp_format, str);
 413         if (!field)
 414                 return NULL;
 415
 416         return tracepoint_field(pevent, field);
 417 }
 418
 419 static PyObject*
 420 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
 421 {
 422         PyObject *obj = NULL;
 423
 424         if (is_tracepoint(pevent))
 425                 obj = get_tracepoint_field(pevent, attr_name);
 426
 427         return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
 428 }
 429
 430 static PyTypeObject pyrf_sample_event__type = {
 431         PyVarObject_HEAD_INIT(NULL, 0)
 432         .tp_name        = "perf.sample_event",
 433         .tp_basicsize   = sizeof(struct pyrf_event),
 434         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 435         .tp_doc         = pyrf_sample_event__doc,
 436         .tp_members     = pyrf_sample_event__members,
 437         .tp_repr        = (reprfunc)pyrf_sample_event__repr,
 438         .tp_getattro    = (getattrofunc) pyrf_sample_event__getattro,
 439 };
 440
 441 static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
 442
 443 static PyMemberDef pyrf_context_switch_event__members[] = {
 444         sample_members
 445         member_def(perf_event_header, type, T_UINT, "event type"),
 446         member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
 447         member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
 448         { .name = NULL, },
 449 };
 450
 451 static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
 452 {
 453         PyObject *ret;
 454         char *s;
 455
 456         if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
 457                      pevent->event.context_switch.next_prev_pid,
 458                      pevent->event.context_switch.next_prev_tid,
 459                      !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
 460                 ret = PyErr_NoMemory();
 461         } else {
 462                 ret = _PyUnicode_FromString(s);
 463                 free(s);
 464         }
 465         return ret;
 466 }
 467
 468 static PyTypeObject pyrf_context_switch_event__type = {
 469         PyVarObject_HEAD_INIT(NULL, 0)
 470         .tp_name        = "perf.context_switch_event",
 471         .tp_basicsize   = sizeof(struct pyrf_event),
 472         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 473         .tp_doc         = pyrf_context_switch_event__doc,
 474         .tp_members     = pyrf_context_switch_event__members,
 475         .tp_repr        = (reprfunc)pyrf_context_switch_event__repr,
 476 };
 477
 478 static int pyrf_event__setup_types(void)
 479 {
 480         int err;
 481         pyrf_mmap_event__type.tp_new =
 482         pyrf_task_event__type.tp_new =
 483         pyrf_comm_event__type.tp_new =
 484         pyrf_lost_event__type.tp_new =
 485         pyrf_read_event__type.tp_new =
 486         pyrf_sample_event__type.tp_new =
 487         pyrf_context_switch_event__type.tp_new =
 488         pyrf_throttle_event__type.tp_new = PyType_GenericNew;
 489         err = PyType_Ready(&pyrf_mmap_event__type);
 490         if (err < 0)
 491                 goto out;
 492         err = PyType_Ready(&pyrf_lost_event__type);
 493         if (err < 0)
 494                 goto out;
 495         err = PyType_Ready(&pyrf_task_event__type);
 496         if (err < 0)
 497                 goto out;
 498         err = PyType_Ready(&pyrf_comm_event__type);
 499         if (err < 0)
 500                 goto out;
 501         err = PyType_Ready(&pyrf_throttle_event__type);
 502         if (err < 0)
 503                 goto out;
 504         err = PyType_Ready(&pyrf_read_event__type);
 505         if (err < 0)
 506                 goto out;
 507         err = PyType_Ready(&pyrf_sample_event__type);
 508         if (err < 0)
 509                 goto out;
 510         err = PyType_Ready(&pyrf_context_switch_event__type);
 511         if (err < 0)
 512                 goto out;
 513 out:
 514         return err;
 515 }
 516
 517 static PyTypeObject *pyrf_event__type[] = {
 518         [PERF_RECORD_MMAP]       = &pyrf_mmap_event__type,
 519         [PERF_RECORD_LOST]       = &pyrf_lost_event__type,
 520         [PERF_RECORD_COMM]       = &pyrf_comm_event__type,
 521         [PERF_RECORD_EXIT]       = &pyrf_task_event__type,
 522         [PERF_RECORD_THROTTLE]   = &pyrf_throttle_event__type,
 523         [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
 524         [PERF_RECORD_FORK]       = &pyrf_task_event__type,
 525         [PERF_RECORD_READ]       = &pyrf_read_event__type,
 526         [PERF_RECORD_SAMPLE]     = &pyrf_sample_event__type,
 527         [PERF_RECORD_SWITCH]     = &pyrf_context_switch_event__type,
 528         [PERF_RECORD_SWITCH_CPU_WIDE]  = &pyrf_context_switch_event__type,
 529 };
 530
 531 static PyObject *pyrf_event__new(union perf_event *event)
 532 {
 533         struct pyrf_event *pevent;
 534         PyTypeObject *ptype;
 535
 536         if ((event->header.type < PERF_RECORD_MMAP ||
 537              event->header.type > PERF_RECORD_SAMPLE) &&
 538             !(event->header.type == PERF_RECORD_SWITCH ||
 539               event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
 540                 return NULL;
 541
 542         ptype = pyrf_event__type[event->header.type];
 543         pevent = PyObject_New(struct pyrf_event, ptype);
 544         if (pevent != NULL)
 545                 memcpy(&pevent->event, event, event->header.size);
 546         return (PyObject *)pevent;
 547 }
 548
 549 struct pyrf_cpu_map {
 550         PyObject_HEAD
 551
 552         struct perf_cpu_map *cpus;
 553 };
 554
 555 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
 556                               PyObject *args, PyObject *kwargs)
 557 {
 558         static char *kwlist[] = { "cpustr", NULL };
 559         char *cpustr = NULL;
 560
 561         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
 562                                          kwlist, &cpustr))
 563                 return -1;
 564
 565         pcpus->cpus = perf_cpu_map__new(cpustr);
 566         if (pcpus->cpus == NULL)
 567                 return -1;
 568         return 0;
 569 }
 570
 571 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
 572 {
 573         perf_cpu_map__put(pcpus->cpus);
 574         Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
 575 }
 576
 577 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
 578 {
 579         struct pyrf_cpu_map *pcpus = (void *)obj;
 580
 581         return pcpus->cpus->nr;
 582 }
 583
 584 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
 585 {
 586         struct pyrf_cpu_map *pcpus = (void *)obj;
 587
 588         if (i >= pcpus->cpus->nr)
 589                 return NULL;
 590
 591         return Py_BuildValue("i", pcpus->cpus->map[i]);
 592 }
 593
 594 static PySequenceMethods pyrf_cpu_map__sequence_methods = {
 595         .sq_length = pyrf_cpu_map__length,
 596         .sq_item   = pyrf_cpu_map__item,
 597 };
 598
 599 static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
 600
 601 static PyTypeObject pyrf_cpu_map__type = {
 602         PyVarObject_HEAD_INIT(NULL, 0)
 603         .tp_name        = "perf.cpu_map",
 604         .tp_basicsize   = sizeof(struct pyrf_cpu_map),
 605         .tp_dealloc     = (destructor)pyrf_cpu_map__delete,
 606         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 607         .tp_doc         = pyrf_cpu_map__doc,
 608         .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
 609         .tp_init        = (initproc)pyrf_cpu_map__init,
 610 };
 611
 612 static int pyrf_cpu_map__setup_types(void)
 613 {
 614         pyrf_cpu_map__type.tp_new = PyType_GenericNew;
 615         return PyType_Ready(&pyrf_cpu_map__type);
 616 }
 617
 618 struct pyrf_thread_map {
 619         PyObject_HEAD
 620
 621         struct perf_thread_map *threads;
 622 };
 623
 624 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
 625                                  PyObject *args, PyObject *kwargs)
 626 {
 627         static char *kwlist[] = { "pid", "tid", "uid", NULL };
 628         int pid = -1, tid = -1, uid = UINT_MAX;
 629
 630         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
 631                                          kwlist, &pid, &tid, &uid))
 632                 return -1;
 633
 634         pthreads->threads = thread_map__new(pid, tid, uid);
 635         if (pthreads->threads == NULL)
 636                 return -1;
 637         return 0;
 638 }
 639
 640 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
 641 {
 642         perf_thread_map__put(pthreads->threads);
 643         Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
 644 }
 645
 646 static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
 647 {
 648         struct pyrf_thread_map *pthreads = (void *)obj;
 649
 650         return pthreads->threads->nr;
 651 }
 652
 653 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
 654 {
 655         struct pyrf_thread_map *pthreads = (void *)obj;
 656
 657         if (i >= pthreads->threads->nr)
 658                 return NULL;
 659
 660         return Py_BuildValue("i", pthreads->threads->map[i]);
 661 }
 662
 663 static PySequenceMethods pyrf_thread_map__sequence_methods = {
 664         .sq_length = pyrf_thread_map__length,
 665         .sq_item   = pyrf_thread_map__item,
 666 };
 667
 668 static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
 669
 670 static PyTypeObject pyrf_thread_map__type = {
 671         PyVarObject_HEAD_INIT(NULL, 0)
 672         .tp_name        = "perf.thread_map",
 673         .tp_basicsize   = sizeof(struct pyrf_thread_map),
 674         .tp_dealloc     = (destructor)pyrf_thread_map__delete,
 675         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 676         .tp_doc         = pyrf_thread_map__doc,
 677         .tp_as_sequence = &pyrf_thread_map__sequence_methods,
 678         .tp_init        = (initproc)pyrf_thread_map__init,
 679 };
 680
 681 static int pyrf_thread_map__setup_types(void)
 682 {
 683         pyrf_thread_map__type.tp_new = PyType_GenericNew;
 684         return PyType_Ready(&pyrf_thread_map__type);
 685 }
 686
 687 struct pyrf_evsel {
 688         PyObject_HEAD
 689
 690         struct evsel evsel;
 691 };
 692
 693 static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
 694                             PyObject *args, PyObject *kwargs)
 695 {
 696         struct perf_event_attr attr = {
 697                 .type = PERF_TYPE_HARDWARE,
 698                 .config = PERF_COUNT_HW_CPU_CYCLES,
 699                 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
 700         };
 701         static char *kwlist[] = {
 702                 "type",
 703                 "config",
 704                 "sample_freq",
 705                 "sample_period",
 706                 "sample_type",
 707                 "read_format",
 708                 "disabled",
 709                 "inherit",
 710                 "pinned",
 711                 "exclusive",
 712                 "exclude_user",
 713                 "exclude_kernel",
 714                 "exclude_hv",
 715                 "exclude_idle",
 716                 "mmap",
 717                 "context_switch",
 718                 "comm",
 719                 "freq",
 720                 "inherit_stat",
 721                 "enable_on_exec",
 722                 "task",
 723                 "watermark",
 724                 "precise_ip",
 725                 "mmap_data",
 726                 "sample_id_all",
 727                 "wakeup_events",
 728                 "bp_type",
 729                 "bp_addr",
 730                 "bp_len",
 731                  NULL
 732         };
 733         u64 sample_period = 0;
 734         u32 disabled = 0,
 735             inherit = 0,
 736             pinned = 0,
 737             exclusive = 0,
 738             exclude_user = 0,
 739             exclude_kernel = 0,
 740             exclude_hv = 0,
 741             exclude_idle = 0,
 742             mmap = 0,
 743             context_switch = 0,
 744             comm = 0,
 745             freq = 1,
 746             inherit_stat = 0,
 747             enable_on_exec = 0,
 748             task = 0,
 749             watermark = 0,
 750             precise_ip = 0,
 751             mmap_data = 0,
 752             sample_id_all = 1;
 753         int idx = 0;
 754
 755         if (!PyArg_ParseTupleAndKeywords(args, kwargs,
 756                                          "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
 757                                          &attr.type, &attr.config, &attr.sample_freq,
 758                                          &sample_period, &attr.sample_type,
 759                                          &attr.read_format, &disabled, &inherit,
 760                                          &pinned, &exclusive, &exclude_user,
 761                                          &exclude_kernel, &exclude_hv, &exclude_idle,
 762                                          &mmap, &context_switch, &comm, &freq, &inherit_stat,
 763                                          &enable_on_exec, &task, &watermark,
 764                                          &precise_ip, &mmap_data, &sample_id_all,
 765                                          &attr.wakeup_events, &attr.bp_type,
 766                                          &attr.bp_addr, &attr.bp_len, &idx))
 767                 return -1;
 768
 769         /* union... */
 770         if (sample_period != 0) {
 771                 if (attr.sample_freq != 0)
 772                         return -1; /* FIXME: throw right exception */
 773                 attr.sample_period = sample_period;
 774         }
 775
 776         /* Bitfields */
 777         attr.disabled       = disabled;
 778         attr.inherit        = inherit;
 779         attr.pinned         = pinned;
 780         attr.exclusive      = exclusive;
 781         attr.exclude_user   = exclude_user;
 782         attr.exclude_kernel = exclude_kernel;
 783         attr.exclude_hv     = exclude_hv;
 784         attr.exclude_idle   = exclude_idle;
 785         attr.mmap           = mmap;
 786         attr.context_switch = context_switch;
 787         attr.comm           = comm;
 788         attr.freq           = freq;
 789         attr.inherit_stat   = inherit_stat;
 790         attr.enable_on_exec = enable_on_exec;
 791         attr.task           = task;
 792         attr.watermark      = watermark;
 793         attr.precise_ip     = precise_ip;
 794         attr.mmap_data      = mmap_data;
 795         attr.sample_id_all  = sample_id_all;
 796         attr.size           = sizeof(attr);
 797
 798         evsel__init(&pevsel->evsel, &attr, idx);
 799         return 0;
 800 }
 801
 802 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
 803 {
 804         perf_evsel__exit(&pevsel->evsel);
 805         Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
 806 }
 807
 808 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
 809                                   PyObject *args, PyObject *kwargs)
 810 {
 811         struct evsel *evsel = &pevsel->evsel;
 812         struct perf_cpu_map *cpus = NULL;
 813         struct perf_thread_map *threads = NULL;
 814         PyObject *pcpus = NULL, *pthreads = NULL;
 815         int group = 0, inherit = 0;
 816         static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
 817
 818         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
 819                                          &pcpus, &pthreads, &group, &inherit))
 820                 return NULL;
 821
 822         if (pthreads != NULL)
 823                 threads = ((struct pyrf_thread_map *)pthreads)->threads;
 824
 825         if (pcpus != NULL)
 826                 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
 827
 828         evsel->core.attr.inherit = inherit;
 829         /*
 830          * This will group just the fds for this single evsel, to group
 831          * multiple events, use evlist.open().
 832          */
 833         if (evsel__open(evsel, cpus, threads) < 0) {
 834                 PyErr_SetFromErrno(PyExc_OSError);
 835                 return NULL;
 836         }
 837
 838         Py_INCREF(Py_None);
 839         return Py_None;
 840 }
 841
 842 static PyMethodDef pyrf_evsel__methods[] = {
 843         {
 844                 .ml_name  = "open",
 845                 .ml_meth  = (PyCFunction)pyrf_evsel__open,
 846                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
 847                 .ml_doc   = PyDoc_STR("open the event selector file descriptor table.")
 848         },
 849         { .ml_name = NULL, }
 850 };
 851
 852 static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
 853
 854 static PyTypeObject pyrf_evsel__type = {
 855         PyVarObject_HEAD_INIT(NULL, 0)
 856         .tp_name        = "perf.evsel",
 857         .tp_basicsize   = sizeof(struct pyrf_evsel),
 858         .tp_dealloc     = (destructor)pyrf_evsel__delete,
 859         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 860         .tp_doc         = pyrf_evsel__doc,
 861         .tp_methods     = pyrf_evsel__methods,
 862         .tp_init        = (initproc)pyrf_evsel__init,
 863 };
 864
 865 static int pyrf_evsel__setup_types(void)
 866 {
 867         pyrf_evsel__type.tp_new = PyType_GenericNew;
 868         return PyType_Ready(&pyrf_evsel__type);
 869 }
 870
 871 struct pyrf_evlist {
 872         PyObject_HEAD
 873
 874         struct evlist evlist;
 875 };
 876
 877 static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
 878                              PyObject *args, PyObject *kwargs __maybe_unused)
 879 {
 880         PyObject *pcpus = NULL, *pthreads = NULL;
 881         struct perf_cpu_map *cpus;
 882         struct perf_thread_map *threads;
 883
 884         if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
 885                 return -1;
 886
 887         threads = ((struct pyrf_thread_map *)pthreads)->threads;
 888         cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
 889         evlist__init(&pevlist->evlist, cpus, threads);
 890         return 0;
 891 }
 892
 893 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
 894 {
 895         evlist__exit(&pevlist->evlist);
 896         Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
 897 }
 898
 899 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
 900                                    PyObject *args, PyObject *kwargs)
 901 {
 902         struct evlist *evlist = &pevlist->evlist;
 903         static char *kwlist[] = { "pages", "overwrite", NULL };
 904         int pages = 128, overwrite = false;
 905
 906         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
 907                                          &pages, &overwrite))
 908                 return NULL;
 909
 910         if (evlist__mmap(evlist, pages) < 0) {
 911                 PyErr_SetFromErrno(PyExc_OSError);
 912                 return NULL;
 913         }
 914
 915         Py_INCREF(Py_None);
 916         return Py_None;
 917 }
 918
 919 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
 920                                    PyObject *args, PyObject *kwargs)
 921 {
 922         struct evlist *evlist = &pevlist->evlist;
 923         static char *kwlist[] = { "timeout", NULL };
 924         int timeout = -1, n;
 925
 926         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
 927                 return NULL;
 928
 929         n = evlist__poll(evlist, timeout);
 930         if (n < 0) {
 931                 PyErr_SetFromErrno(PyExc_OSError);
 932                 return NULL;
 933         }
 934
 935         return Py_BuildValue("i", n);
 936 }
 937
 938 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
 939                                          PyObject *args __maybe_unused,
 940                                          PyObject *kwargs __maybe_unused)
 941 {
 942         struct evlist *evlist = &pevlist->evlist;
 943         PyObject *list = PyList_New(0);
 944         int i;
 945
 946         for (i = 0; i < evlist->core.pollfd.nr; ++i) {
 947                 PyObject *file;
 948 #if PY_MAJOR_VERSION < 3
 949                 FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
 950
 951                 if (fp == NULL)
 952                         goto free_list;
 953
 954                 file = PyFile_FromFile(fp, "perf", "r", NULL);
 955 #else
 956                 file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
 957                                      NULL, NULL, NULL, 0);
 958 #endif
 959                 if (file == NULL)
 960                         goto free_list;
 961
 962                 if (PyList_Append(list, file) != 0) {
 963                         Py_DECREF(file);
 964                         goto free_list;
 965                 }
 966
 967                 Py_DECREF(file);
 968         }
 969
 970         return list;
 971 free_list:
 972         return PyErr_NoMemory();
 973 }
 974
 975
 976 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
 977                                   PyObject *args,
 978                                   PyObject *kwargs __maybe_unused)
 979 {
 980         struct evlist *evlist = &pevlist->evlist;
 981         PyObject *pevsel;
 982         struct evsel *evsel;
 983
 984         if (!PyArg_ParseTuple(args, "O", &pevsel))
 985                 return NULL;
 986
 987         Py_INCREF(pevsel);
 988         evsel = &((struct pyrf_evsel *)pevsel)->evsel;
 989         evsel->idx = evlist->core.nr_entries;
 990         evlist__add(evlist, evsel);
 991
 992         return Py_BuildValue("i", evlist->core.nr_entries);
 993 }
 994
 995 static struct mmap *get_md(struct evlist *evlist, int cpu)
 996 {
 997         int i;
 998
 999         for (i = 0; i < evlist->core.nr_mmaps; i++) {
1000                 struct mmap *md = &evlist->mmap[i];
1001
1002                 if (md->core.cpu == cpu)
1003                         return md;
1004         }
1005
1006         return NULL;
1007 }
1008
1009 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
1010                                           PyObject *args, PyObject *kwargs)
1011 {
1012         struct evlist *evlist = &pevlist->evlist;
1013         union perf_event *event;
1014         int sample_id_all = 1, cpu;
1015         static char *kwlist[] = { "cpu", "sample_id_all", NULL };
1016         struct mmap *md;
1017         int err;
1018
1019         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
1020                                          &cpu, &sample_id_all))
1021                 return NULL;
1022
1023         md = get_md(evlist, cpu);
1024         if (!md)
1025                 return NULL;
1026
1027         if (perf_mmap__read_init(&md->core) < 0)
1028                 goto end;
1029
1030         event = perf_mmap__read_event(&md->core);
1031         if (event != NULL) {
1032                 PyObject *pyevent = pyrf_event__new(event);
1033                 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
1034                 struct evsel *evsel;
1035
1036                 if (pyevent == NULL)
1037                         return PyErr_NoMemory();
1038
1039                 evsel = perf_evlist__event2evsel(evlist, event);
1040                 if (!evsel) {
1041                         Py_INCREF(Py_None);
1042                         return Py_None;
1043                 }
1044
1045                 pevent->evsel = evsel;
1046
1047                 err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
1048
1049                 /* Consume the even only after we parsed it out. */
1050                 perf_mmap__consume(&md->core);
1051
1052                 if (err)
1053                         return PyErr_Format(PyExc_OSError,
1054                                             "perf: can't parse sample, err=%d", err);
1055                 return pyevent;
1056         }
1057 end:
1058         Py_INCREF(Py_None);
1059         return Py_None;
1060 }
1061
1062 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
1063                                    PyObject *args, PyObject *kwargs)
1064 {
1065         struct evlist *evlist = &pevlist->evlist;
1066         int group = 0;
1067         static char *kwlist[] = { "group", NULL };
1068
1069         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
1070                 return NULL;
1071
1072         if (group)
1073                 perf_evlist__set_leader(evlist);
1074
1075         if (evlist__open(evlist) < 0) {
1076                 PyErr_SetFromErrno(PyExc_OSError);
1077                 return NULL;
1078         }
1079
1080         Py_INCREF(Py_None);
1081         return Py_None;
1082 }
1083
1084 static PyMethodDef pyrf_evlist__methods[] = {
1085         {
1086                 .ml_name  = "mmap",
1087                 .ml_meth  = (PyCFunction)pyrf_evlist__mmap,
1088                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1089                 .ml_doc   = PyDoc_STR("mmap the file descriptor table.")
1090         },
1091         {
1092                 .ml_name  = "open",
1093                 .ml_meth  = (PyCFunction)pyrf_evlist__open,
1094                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1095                 .ml_doc   = PyDoc_STR("open the file descriptors.")
1096         },
1097         {
1098                 .ml_name  = "poll",
1099                 .ml_meth  = (PyCFunction)pyrf_evlist__poll,
1100                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1101                 .ml_doc   = PyDoc_STR("poll the file descriptor table.")
1102         },
1103         {
1104                 .ml_name  = "get_pollfd",
1105                 .ml_meth  = (PyCFunction)pyrf_evlist__get_pollfd,
1106                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1107                 .ml_doc   = PyDoc_STR("get the poll file descriptor table.")
1108         },
1109         {
1110                 .ml_name  = "add",
1111                 .ml_meth  = (PyCFunction)pyrf_evlist__add,
1112                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1113                 .ml_doc   = PyDoc_STR("adds an event selector to the list.")
1114         },
1115         {
1116                 .ml_name  = "read_on_cpu",
1117                 .ml_meth  = (PyCFunction)pyrf_evlist__read_on_cpu,
1118                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1119                 .ml_doc   = PyDoc_STR("reads an event.")
1120         },
1121         { .ml_name = NULL, }
1122 };
1123
1124 static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1125 {
1126         struct pyrf_evlist *pevlist = (void *)obj;
1127
1128         return pevlist->evlist.core.nr_entries;
1129 }
1130
1131 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1132 {
1133         struct pyrf_evlist *pevlist = (void *)obj;
1134         struct evsel *pos;
1135
1136         if (i >= pevlist->evlist.core.nr_entries)
1137                 return NULL;
1138
1139         evlist__for_each_entry(&pevlist->evlist, pos) {
1140                 if (i-- == 0)
1141                         break;
1142         }
1143
1144         return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1145 }
1146
1147 static PySequenceMethods pyrf_evlist__sequence_methods = {
1148         .sq_length = pyrf_evlist__length,
1149         .sq_item   = pyrf_evlist__item,
1150 };
1151
1152 static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1153
1154 static PyTypeObject pyrf_evlist__type = {
1155         PyVarObject_HEAD_INIT(NULL, 0)
1156         .tp_name        = "perf.evlist",
1157         .tp_basicsize   = sizeof(struct pyrf_evlist),
1158         .tp_dealloc     = (destructor)pyrf_evlist__delete,
1159         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1160         .tp_as_sequence = &pyrf_evlist__sequence_methods,
1161         .tp_doc         = pyrf_evlist__doc,
1162         .tp_methods     = pyrf_evlist__methods,
1163         .tp_init        = (initproc)pyrf_evlist__init,
1164 };
1165
1166 static int pyrf_evlist__setup_types(void)
1167 {
1168         pyrf_evlist__type.tp_new = PyType_GenericNew;
1169         return PyType_Ready(&pyrf_evlist__type);
1170 }
1171
1172 #define PERF_CONST(name) { #name, PERF_##name }
1173
1174 static struct {
1175         const char *name;
1176         int         value;
1177 } perf__constants[] = {
1178         PERF_CONST(TYPE_HARDWARE),
1179         PERF_CONST(TYPE_SOFTWARE),
1180         PERF_CONST(TYPE_TRACEPOINT),
1181         PERF_CONST(TYPE_HW_CACHE),
1182         PERF_CONST(TYPE_RAW),
1183         PERF_CONST(TYPE_BREAKPOINT),
1184
1185         PERF_CONST(COUNT_HW_CPU_CYCLES),
1186         PERF_CONST(COUNT_HW_INSTRUCTIONS),
1187         PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1188         PERF_CONST(COUNT_HW_CACHE_MISSES),
1189         PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1190         PERF_CONST(COUNT_HW_BRANCH_MISSES),
1191         PERF_CONST(COUNT_HW_BUS_CYCLES),
1192         PERF_CONST(COUNT_HW_CACHE_L1D),
1193         PERF_CONST(COUNT_HW_CACHE_L1I),
1194         PERF_CONST(COUNT_HW_CACHE_LL),
1195         PERF_CONST(COUNT_HW_CACHE_DTLB),
1196         PERF_CONST(COUNT_HW_CACHE_ITLB),
1197         PERF_CONST(COUNT_HW_CACHE_BPU),
1198         PERF_CONST(COUNT_HW_CACHE_OP_READ),
1199         PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1200         PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1201         PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1202         PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1203
1204         PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1205         PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1206
1207         PERF_CONST(COUNT_SW_CPU_CLOCK),
1208         PERF_CONST(COUNT_SW_TASK_CLOCK),
1209         PERF_CONST(COUNT_SW_PAGE_FAULTS),
1210         PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1211         PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1212         PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1213         PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1214         PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1215         PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1216         PERF_CONST(COUNT_SW_DUMMY),
1217
1218         PERF_CONST(SAMPLE_IP),
1219         PERF_CONST(SAMPLE_TID),
1220         PERF_CONST(SAMPLE_TIME),
1221         PERF_CONST(SAMPLE_ADDR),
1222         PERF_CONST(SAMPLE_READ),
1223         PERF_CONST(SAMPLE_CALLCHAIN),
1224         PERF_CONST(SAMPLE_ID),
1225         PERF_CONST(SAMPLE_CPU),
1226         PERF_CONST(SAMPLE_PERIOD),
1227         PERF_CONST(SAMPLE_STREAM_ID),
1228         PERF_CONST(SAMPLE_RAW),
1229
1230         PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1231         PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1232         PERF_CONST(FORMAT_ID),
1233         PERF_CONST(FORMAT_GROUP),
1234
1235         PERF_CONST(RECORD_MMAP),
1236         PERF_CONST(RECORD_LOST),
1237         PERF_CONST(RECORD_COMM),
1238         PERF_CONST(RECORD_EXIT),
1239         PERF_CONST(RECORD_THROTTLE),
1240         PERF_CONST(RECORD_UNTHROTTLE),
1241         PERF_CONST(RECORD_FORK),
1242         PERF_CONST(RECORD_READ),
1243         PERF_CONST(RECORD_SAMPLE),
1244         PERF_CONST(RECORD_MMAP2),
1245         PERF_CONST(RECORD_AUX),
1246         PERF_CONST(RECORD_ITRACE_START),
1247         PERF_CONST(RECORD_LOST_SAMPLES),
1248         PERF_CONST(RECORD_SWITCH),
1249         PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1250
1251         PERF_CONST(RECORD_MISC_SWITCH_OUT),
1252         { .name = NULL, },
1253 };
1254
1255 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1256                                   PyObject *args, PyObject *kwargs)
1257 {
1258         struct tep_event *tp_format;
1259         static char *kwlist[] = { "sys", "name", NULL };
1260         char *sys  = NULL;
1261         char *name = NULL;
1262
1263         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1264                                          &sys, &name))
1265                 return NULL;
1266
1267         tp_format = trace_event__tp_format(sys, name);
1268         if (IS_ERR(tp_format))
1269                 return _PyLong_FromLong(-1);
1270
1271         return _PyLong_FromLong(tp_format->id);
1272 }
1273
1274 static PyMethodDef perf__methods[] = {
1275         {
1276                 .ml_name  = "tracepoint",
1277                 .ml_meth  = (PyCFunction) pyrf__tracepoint,
1278                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1279                 .ml_doc   = PyDoc_STR("Get tracepoint config.")
1280         },
1281         { .ml_name = NULL, }
1282 };
1283
1284 #if PY_MAJOR_VERSION < 3
1285 PyMODINIT_FUNC initperf(void)
1286 #else
1287 PyMODINIT_FUNC PyInit_perf(void)
1288 #endif
1289 {
1290         PyObject *obj;
1291         int i;
1292         PyObject *dict;
1293 #if PY_MAJOR_VERSION < 3
1294         PyObject *module = Py_InitModule("perf", perf__methods);
1295 #else
1296         static struct PyModuleDef moduledef = {
1297                 PyModuleDef_HEAD_INIT,
1298                 "perf",                 /* m_name */
1299                 "",                     /* m_doc */
1300                 -1,                     /* m_size */
1301                 perf__methods,          /* m_methods */
1302                 NULL,                   /* m_reload */
1303                 NULL,                   /* m_traverse */
1304                 NULL,                   /* m_clear */
1305                 NULL,                   /* m_free */
1306         };
1307         PyObject *module = PyModule_Create(&moduledef);
1308 #endif
1309
1310         if (module == NULL ||
1311             pyrf_event__setup_types() < 0 ||
1312             pyrf_evlist__setup_types() < 0 ||
1313             pyrf_evsel__setup_types() < 0 ||
1314             pyrf_thread_map__setup_types() < 0 ||
1315             pyrf_cpu_map__setup_types() < 0)
1316 #if PY_MAJOR_VERSION < 3
1317                 return;
1318 #else
1319                 return module;
1320 #endif
1321
1322         /* The page_size is placed in util object. */
1323         page_size = sysconf(_SC_PAGE_SIZE);
1324
1325         Py_INCREF(&pyrf_evlist__type);
1326         PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1327
1328         Py_INCREF(&pyrf_evsel__type);
1329         PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1330
1331         Py_INCREF(&pyrf_mmap_event__type);
1332         PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1333
1334         Py_INCREF(&pyrf_lost_event__type);
1335         PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1336
1337         Py_INCREF(&pyrf_comm_event__type);
1338         PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1339
1340         Py_INCREF(&pyrf_task_event__type);
1341         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1342
1343         Py_INCREF(&pyrf_throttle_event__type);
1344         PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1345
1346         Py_INCREF(&pyrf_task_event__type);
1347         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1348
1349         Py_INCREF(&pyrf_read_event__type);
1350         PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1351
1352         Py_INCREF(&pyrf_sample_event__type);
1353         PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1354
1355         Py_INCREF(&pyrf_context_switch_event__type);
1356         PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1357
1358         Py_INCREF(&pyrf_thread_map__type);
1359         PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1360
1361         Py_INCREF(&pyrf_cpu_map__type);
1362         PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1363
1364         dict = PyModule_GetDict(module);
1365         if (dict == NULL)
1366                 goto error;
1367
1368         for (i = 0; perf__constants[i].name != NULL; i++) {
1369                 obj = _PyLong_FromLong(perf__constants[i].value);
1370                 if (obj == NULL)
1371                         goto error;
1372                 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1373                 Py_DECREF(obj);
1374         }
1375
1376 error:
1377         if (PyErr_Occurred())
1378                 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1379 #if PY_MAJOR_VERSION >= 3
1380         return module;
1381 #endif
1382 }
1383
1384 /*
1385  * Dummy, to avoid dragging all the test_attr infrastructure in the python
1386  * binding.
1387  */
1388 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1389                      int fd, int group_fd, unsigned long flags)
1390 {
1391 }