tools/perf/util/python.c

   1 #include <Python.h>
   2 #include <structmember.h>
   3 #include <inttypes.h>
   4 #include <poll.h>
   5 #include <linux/err.h>
   6 #include "evlist.h"
   7 #include "callchain.h"
   8 #include "evsel.h"
   9 #include "event.h"
  10 #include "cpumap.h"
  11 #include "print_binary.h"
  12 #include "thread_map.h"
  13
  14 /*
  15  * Provide these two so that we don't have to link against callchain.c and
  16  * start dragging hist.c, etc.
  17  */
  18 struct callchain_param callchain_param;
  19
  20 int parse_callchain_record(const char *arg __maybe_unused,
  21                            struct callchain_param *param __maybe_unused)
  22 {
  23         return 0;
  24 }
  25
  26 /*
  27  * Support debug printing even though util/debug.c is not linked.  That means
  28  * implementing 'verbose' and 'eprintf'.
  29  */
  30 int verbose;
  31
  32 int eprintf(int level, int var, const char *fmt, ...)
  33 {
  34         va_list args;
  35         int ret = 0;
  36
  37         if (var >= level) {
  38                 va_start(args, fmt);
  39                 ret = vfprintf(stderr, fmt, args);
  40                 va_end(args);
  41         }
  42
  43         return ret;
  44 }
  45
  46 /* Define PyVarObject_HEAD_INIT for python 2.5 */
  47 #ifndef PyVarObject_HEAD_INIT
  48 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
  49 #endif
  50
  51 PyMODINIT_FUNC initperf(void);
  52
  53 #define member_def(type, member, ptype, help) \
  54         { #member, ptype, \
  55           offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
  56           0, help }
  57
  58 #define sample_member_def(name, member, ptype, help) \
  59         { #name, ptype, \
  60           offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
  61           0, help }
  62
  63 struct pyrf_event {
  64         PyObject_HEAD
  65         struct perf_evsel *evsel;
  66         struct perf_sample sample;
  67         union perf_event   event;
  68 };
  69
  70 #define sample_members \
  71         sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"),                     \
  72         sample_member_def(sample_pid, pid, T_INT, "event pid"),                  \
  73         sample_member_def(sample_tid, tid, T_INT, "event tid"),                  \
  74         sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"),            \
  75         sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"),                 \
  76         sample_member_def(sample_id, id, T_ULONGLONG, "event id"),                       \
  77         sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
  78         sample_member_def(sample_period, period, T_ULONGLONG, "event period"),           \
  79         sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
  80
  81 static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
  82
  83 static PyMemberDef pyrf_mmap_event__members[] = {
  84         sample_members
  85         member_def(perf_event_header, type, T_UINT, "event type"),
  86         member_def(perf_event_header, misc, T_UINT, "event misc"),
  87         member_def(mmap_event, pid, T_UINT, "event pid"),
  88         member_def(mmap_event, tid, T_UINT, "event tid"),
  89         member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
  90         member_def(mmap_event, len, T_ULONGLONG, "map length"),
  91         member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
  92         member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
  93         { .name = NULL, },
  94 };
  95
  96 static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
  97 {
  98         PyObject *ret;
  99         char *s;
 100
 101         if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
 102                          "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
 103                          "filename: %s }",
 104                      pevent->event.mmap.pid, pevent->event.mmap.tid,
 105                      pevent->event.mmap.start, pevent->event.mmap.len,
 106                      pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
 107                 ret = PyErr_NoMemory();
 108         } else {
 109                 ret = PyString_FromString(s);
 110                 free(s);
 111         }
 112         return ret;
 113 }
 114
 115 static PyTypeObject pyrf_mmap_event__type = {
 116         PyVarObject_HEAD_INIT(NULL, 0)
 117         .tp_name        = "perf.mmap_event",
 118         .tp_basicsize   = sizeof(struct pyrf_event),
 119         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 120         .tp_doc         = pyrf_mmap_event__doc,
 121         .tp_members     = pyrf_mmap_event__members,
 122         .tp_repr        = (reprfunc)pyrf_mmap_event__repr,
 123 };
 124
 125 static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
 126
 127 static PyMemberDef pyrf_task_event__members[] = {
 128         sample_members
 129         member_def(perf_event_header, type, T_UINT, "event type"),
 130         member_def(fork_event, pid, T_UINT, "event pid"),
 131         member_def(fork_event, ppid, T_UINT, "event ppid"),
 132         member_def(fork_event, tid, T_UINT, "event tid"),
 133         member_def(fork_event, ptid, T_UINT, "event ptid"),
 134         member_def(fork_event, time, T_ULONGLONG, "timestamp"),
 135         { .name = NULL, },
 136 };
 137
 138 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
 139 {
 140         return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
 141                                    "ptid: %u, time: %" PRIu64 "}",
 142                                    pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
 143                                    pevent->event.fork.pid,
 144                                    pevent->event.fork.ppid,
 145                                    pevent->event.fork.tid,
 146                                    pevent->event.fork.ptid,
 147                                    pevent->event.fork.time);
 148 }
 149
 150 static PyTypeObject pyrf_task_event__type = {
 151         PyVarObject_HEAD_INIT(NULL, 0)
 152         .tp_name        = "perf.task_event",
 153         .tp_basicsize   = sizeof(struct pyrf_event),
 154         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 155         .tp_doc         = pyrf_task_event__doc,
 156         .tp_members     = pyrf_task_event__members,
 157         .tp_repr        = (reprfunc)pyrf_task_event__repr,
 158 };
 159
 160 static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
 161
 162 static PyMemberDef pyrf_comm_event__members[] = {
 163         sample_members
 164         member_def(perf_event_header, type, T_UINT, "event type"),
 165         member_def(comm_event, pid, T_UINT, "event pid"),
 166         member_def(comm_event, tid, T_UINT, "event tid"),
 167         member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
 168         { .name = NULL, },
 169 };
 170
 171 static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
 172 {
 173         return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
 174                                    pevent->event.comm.pid,
 175                                    pevent->event.comm.tid,
 176                                    pevent->event.comm.comm);
 177 }
 178
 179 static PyTypeObject pyrf_comm_event__type = {
 180         PyVarObject_HEAD_INIT(NULL, 0)
 181         .tp_name        = "perf.comm_event",
 182         .tp_basicsize   = sizeof(struct pyrf_event),
 183         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 184         .tp_doc         = pyrf_comm_event__doc,
 185         .tp_members     = pyrf_comm_event__members,
 186         .tp_repr        = (reprfunc)pyrf_comm_event__repr,
 187 };
 188
 189 static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
 190
 191 static PyMemberDef pyrf_throttle_event__members[] = {
 192         sample_members
 193         member_def(perf_event_header, type, T_UINT, "event type"),
 194         member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
 195         member_def(throttle_event, id, T_ULONGLONG, "event id"),
 196         member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
 197         { .name = NULL, },
 198 };
 199
 200 static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
 201 {
 202         struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
 203
 204         return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
 205                                    ", stream_id: %" PRIu64 " }",
 206                                    pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
 207                                    te->time, te->id, te->stream_id);
 208 }
 209
 210 static PyTypeObject pyrf_throttle_event__type = {
 211         PyVarObject_HEAD_INIT(NULL, 0)
 212         .tp_name        = "perf.throttle_event",
 213         .tp_basicsize   = sizeof(struct pyrf_event),
 214         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 215         .tp_doc         = pyrf_throttle_event__doc,
 216         .tp_members     = pyrf_throttle_event__members,
 217         .tp_repr        = (reprfunc)pyrf_throttle_event__repr,
 218 };
 219
 220 static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
 221
 222 static PyMemberDef pyrf_lost_event__members[] = {
 223         sample_members
 224         member_def(lost_event, id, T_ULONGLONG, "event id"),
 225         member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
 226         { .name = NULL, },
 227 };
 228
 229 static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
 230 {
 231         PyObject *ret;
 232         char *s;
 233
 234         if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
 235                          "lost: %#" PRIx64 " }",
 236                      pevent->event.lost.id, pevent->event.lost.lost) < 0) {
 237                 ret = PyErr_NoMemory();
 238         } else {
 239                 ret = PyString_FromString(s);
 240                 free(s);
 241         }
 242         return ret;
 243 }
 244
 245 static PyTypeObject pyrf_lost_event__type = {
 246         PyVarObject_HEAD_INIT(NULL, 0)
 247         .tp_name        = "perf.lost_event",
 248         .tp_basicsize   = sizeof(struct pyrf_event),
 249         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 250         .tp_doc         = pyrf_lost_event__doc,
 251         .tp_members     = pyrf_lost_event__members,
 252         .tp_repr        = (reprfunc)pyrf_lost_event__repr,
 253 };
 254
 255 static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
 256
 257 static PyMemberDef pyrf_read_event__members[] = {
 258         sample_members
 259         member_def(read_event, pid, T_UINT, "event pid"),
 260         member_def(read_event, tid, T_UINT, "event tid"),
 261         { .name = NULL, },
 262 };
 263
 264 static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
 265 {
 266         return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
 267                                    pevent->event.read.pid,
 268                                    pevent->event.read.tid);
 269         /*
 270          * FIXME: return the array of read values,
 271          * making this method useful ;-)
 272          */
 273 }
 274
 275 static PyTypeObject pyrf_read_event__type = {
 276         PyVarObject_HEAD_INIT(NULL, 0)
 277         .tp_name        = "perf.read_event",
 278         .tp_basicsize   = sizeof(struct pyrf_event),
 279         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 280         .tp_doc         = pyrf_read_event__doc,
 281         .tp_members     = pyrf_read_event__members,
 282         .tp_repr        = (reprfunc)pyrf_read_event__repr,
 283 };
 284
 285 static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
 286
 287 static PyMemberDef pyrf_sample_event__members[] = {
 288         sample_members
 289         member_def(perf_event_header, type, T_UINT, "event type"),
 290         { .name = NULL, },
 291 };
 292
 293 static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
 294 {
 295         PyObject *ret;
 296         char *s;
 297
 298         if (asprintf(&s, "{ type: sample }") < 0) {
 299                 ret = PyErr_NoMemory();
 300         } else {
 301                 ret = PyString_FromString(s);
 302                 free(s);
 303         }
 304         return ret;
 305 }
 306
 307 static bool is_tracepoint(struct pyrf_event *pevent)
 308 {
 309         return pevent->evsel->attr.type == PERF_TYPE_TRACEPOINT;
 310 }
 311
 312 static PyObject*
 313 tracepoint_field(struct pyrf_event *pe, struct format_field *field)
 314 {
 315         struct pevent *pevent = field->event->pevent;
 316         void *data = pe->sample.raw_data;
 317         PyObject *ret = NULL;
 318         unsigned long long val;
 319         unsigned int offset, len;
 320
 321         if (field->flags & FIELD_IS_ARRAY) {
 322                 offset = field->offset;
 323                 len    = field->size;
 324                 if (field->flags & FIELD_IS_DYNAMIC) {
 325                         val     = pevent_read_number(pevent, data + offset, len);
 326                         offset  = val;
 327                         len     = offset >> 16;
 328                         offset &= 0xffff;
 329                 }
 330                 if (field->flags & FIELD_IS_STRING &&
 331                     is_printable_array(data + offset, len)) {
 332                         ret = PyString_FromString((char *)data + offset);
 333                 } else {
 334                         ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
 335                         field->flags &= ~FIELD_IS_STRING;
 336                 }
 337         } else {
 338                 val = pevent_read_number(pevent, data + field->offset,
 339                                          field->size);
 340                 if (field->flags & FIELD_IS_POINTER)
 341                         ret = PyLong_FromUnsignedLong((unsigned long) val);
 342                 else if (field->flags & FIELD_IS_SIGNED)
 343                         ret = PyLong_FromLong((long) val);
 344                 else
 345                         ret = PyLong_FromUnsignedLong((unsigned long) val);
 346         }
 347
 348         return ret;
 349 }
 350
 351 static PyObject*
 352 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
 353 {
 354         const char *str = PyString_AsString(PyObject_Str(attr_name));
 355         struct perf_evsel *evsel = pevent->evsel;
 356         struct format_field *field;
 357
 358         if (!evsel->tp_format) {
 359                 struct event_format *tp_format;
 360
 361                 tp_format = trace_event__tp_format_id(evsel->attr.config);
 362                 if (!tp_format)
 363                         return NULL;
 364
 365                 evsel->tp_format = tp_format;
 366         }
 367
 368         field = pevent_find_any_field(evsel->tp_format, str);
 369         if (!field)
 370                 return NULL;
 371
 372         return tracepoint_field(pevent, field);
 373 }
 374
 375 static PyObject*
 376 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
 377 {
 378         PyObject *obj = NULL;
 379
 380         if (is_tracepoint(pevent))
 381                 obj = get_tracepoint_field(pevent, attr_name);
 382
 383         return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
 384 }
 385
 386 static PyTypeObject pyrf_sample_event__type = {
 387         PyVarObject_HEAD_INIT(NULL, 0)
 388         .tp_name        = "perf.sample_event",
 389         .tp_basicsize   = sizeof(struct pyrf_event),
 390         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 391         .tp_doc         = pyrf_sample_event__doc,
 392         .tp_members     = pyrf_sample_event__members,
 393         .tp_repr        = (reprfunc)pyrf_sample_event__repr,
 394         .tp_getattro    = (getattrofunc) pyrf_sample_event__getattro,
 395 };
 396
 397 static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
 398
 399 static PyMemberDef pyrf_context_switch_event__members[] = {
 400         sample_members
 401         member_def(perf_event_header, type, T_UINT, "event type"),
 402         member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"),
 403         member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"),
 404         { .name = NULL, },
 405 };
 406
 407 static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
 408 {
 409         PyObject *ret;
 410         char *s;
 411
 412         if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
 413                      pevent->event.context_switch.next_prev_pid,
 414                      pevent->event.context_switch.next_prev_tid,
 415                      !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
 416                 ret = PyErr_NoMemory();
 417         } else {
 418                 ret = PyString_FromString(s);
 419                 free(s);
 420         }
 421         return ret;
 422 }
 423
 424 static PyTypeObject pyrf_context_switch_event__type = {
 425         PyVarObject_HEAD_INIT(NULL, 0)
 426         .tp_name        = "perf.context_switch_event",
 427         .tp_basicsize   = sizeof(struct pyrf_event),
 428         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 429         .tp_doc         = pyrf_context_switch_event__doc,
 430         .tp_members     = pyrf_context_switch_event__members,
 431         .tp_repr        = (reprfunc)pyrf_context_switch_event__repr,
 432 };
 433
 434 static int pyrf_event__setup_types(void)
 435 {
 436         int err;
 437         pyrf_mmap_event__type.tp_new =
 438         pyrf_task_event__type.tp_new =
 439         pyrf_comm_event__type.tp_new =
 440         pyrf_lost_event__type.tp_new =
 441         pyrf_read_event__type.tp_new =
 442         pyrf_sample_event__type.tp_new =
 443         pyrf_context_switch_event__type.tp_new =
 444         pyrf_throttle_event__type.tp_new = PyType_GenericNew;
 445         err = PyType_Ready(&pyrf_mmap_event__type);
 446         if (err < 0)
 447                 goto out;
 448         err = PyType_Ready(&pyrf_lost_event__type);
 449         if (err < 0)
 450                 goto out;
 451         err = PyType_Ready(&pyrf_task_event__type);
 452         if (err < 0)
 453                 goto out;
 454         err = PyType_Ready(&pyrf_comm_event__type);
 455         if (err < 0)
 456                 goto out;
 457         err = PyType_Ready(&pyrf_throttle_event__type);
 458         if (err < 0)
 459                 goto out;
 460         err = PyType_Ready(&pyrf_read_event__type);
 461         if (err < 0)
 462                 goto out;
 463         err = PyType_Ready(&pyrf_sample_event__type);
 464         if (err < 0)
 465                 goto out;
 466         err = PyType_Ready(&pyrf_context_switch_event__type);
 467         if (err < 0)
 468                 goto out;
 469 out:
 470         return err;
 471 }
 472
 473 static PyTypeObject *pyrf_event__type[] = {
 474         [PERF_RECORD_MMAP]       = &pyrf_mmap_event__type,
 475         [PERF_RECORD_LOST]       = &pyrf_lost_event__type,
 476         [PERF_RECORD_COMM]       = &pyrf_comm_event__type,
 477         [PERF_RECORD_EXIT]       = &pyrf_task_event__type,
 478         [PERF_RECORD_THROTTLE]   = &pyrf_throttle_event__type,
 479         [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
 480         [PERF_RECORD_FORK]       = &pyrf_task_event__type,
 481         [PERF_RECORD_READ]       = &pyrf_read_event__type,
 482         [PERF_RECORD_SAMPLE]     = &pyrf_sample_event__type,
 483         [PERF_RECORD_SWITCH]     = &pyrf_context_switch_event__type,
 484         [PERF_RECORD_SWITCH_CPU_WIDE]  = &pyrf_context_switch_event__type,
 485 };
 486
 487 static PyObject *pyrf_event__new(union perf_event *event)
 488 {
 489         struct pyrf_event *pevent;
 490         PyTypeObject *ptype;
 491
 492         if ((event->header.type < PERF_RECORD_MMAP ||
 493              event->header.type > PERF_RECORD_SAMPLE) &&
 494             !(event->header.type == PERF_RECORD_SWITCH ||
 495               event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
 496                 return NULL;
 497
 498         ptype = pyrf_event__type[event->header.type];
 499         pevent = PyObject_New(struct pyrf_event, ptype);
 500         if (pevent != NULL)
 501                 memcpy(&pevent->event, event, event->header.size);
 502         return (PyObject *)pevent;
 503 }
 504
 505 struct pyrf_cpu_map {
 506         PyObject_HEAD
 507
 508         struct cpu_map *cpus;
 509 };
 510
 511 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
 512                               PyObject *args, PyObject *kwargs)
 513 {
 514         static char *kwlist[] = { "cpustr", NULL };
 515         char *cpustr = NULL;
 516
 517         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
 518                                          kwlist, &cpustr))
 519                 return -1;
 520
 521         pcpus->cpus = cpu_map__new(cpustr);
 522         if (pcpus->cpus == NULL)
 523                 return -1;
 524         return 0;
 525 }
 526
 527 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
 528 {
 529         cpu_map__put(pcpus->cpus);
 530         pcpus->ob_type->tp_free((PyObject*)pcpus);
 531 }
 532
 533 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
 534 {
 535         struct pyrf_cpu_map *pcpus = (void *)obj;
 536
 537         return pcpus->cpus->nr;
 538 }
 539
 540 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
 541 {
 542         struct pyrf_cpu_map *pcpus = (void *)obj;
 543
 544         if (i >= pcpus->cpus->nr)
 545                 return NULL;
 546
 547         return Py_BuildValue("i", pcpus->cpus->map[i]);
 548 }
 549
 550 static PySequenceMethods pyrf_cpu_map__sequence_methods = {
 551         .sq_length = pyrf_cpu_map__length,
 552         .sq_item   = pyrf_cpu_map__item,
 553 };
 554
 555 static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
 556
 557 static PyTypeObject pyrf_cpu_map__type = {
 558         PyVarObject_HEAD_INIT(NULL, 0)
 559         .tp_name        = "perf.cpu_map",
 560         .tp_basicsize   = sizeof(struct pyrf_cpu_map),
 561         .tp_dealloc     = (destructor)pyrf_cpu_map__delete,
 562         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 563         .tp_doc         = pyrf_cpu_map__doc,
 564         .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
 565         .tp_init        = (initproc)pyrf_cpu_map__init,
 566 };
 567
 568 static int pyrf_cpu_map__setup_types(void)
 569 {
 570         pyrf_cpu_map__type.tp_new = PyType_GenericNew;
 571         return PyType_Ready(&pyrf_cpu_map__type);
 572 }
 573
 574 struct pyrf_thread_map {
 575         PyObject_HEAD
 576
 577         struct thread_map *threads;
 578 };
 579
 580 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
 581                                  PyObject *args, PyObject *kwargs)
 582 {
 583         static char *kwlist[] = { "pid", "tid", "uid", NULL };
 584         int pid = -1, tid = -1, uid = UINT_MAX;
 585
 586         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
 587                                          kwlist, &pid, &tid, &uid))
 588                 return -1;
 589
 590         pthreads->threads = thread_map__new(pid, tid, uid);
 591         if (pthreads->threads == NULL)
 592                 return -1;
 593         return 0;
 594 }
 595
 596 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
 597 {
 598         thread_map__put(pthreads->threads);
 599         pthreads->ob_type->tp_free((PyObject*)pthreads);
 600 }
 601
 602 static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
 603 {
 604         struct pyrf_thread_map *pthreads = (void *)obj;
 605
 606         return pthreads->threads->nr;
 607 }
 608
 609 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
 610 {
 611         struct pyrf_thread_map *pthreads = (void *)obj;
 612
 613         if (i >= pthreads->threads->nr)
 614                 return NULL;
 615
 616         return Py_BuildValue("i", pthreads->threads->map[i]);
 617 }
 618
 619 static PySequenceMethods pyrf_thread_map__sequence_methods = {
 620         .sq_length = pyrf_thread_map__length,
 621         .sq_item   = pyrf_thread_map__item,
 622 };
 623
 624 static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
 625
 626 static PyTypeObject pyrf_thread_map__type = {
 627         PyVarObject_HEAD_INIT(NULL, 0)
 628         .tp_name        = "perf.thread_map",
 629         .tp_basicsize   = sizeof(struct pyrf_thread_map),
 630         .tp_dealloc     = (destructor)pyrf_thread_map__delete,
 631         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 632         .tp_doc         = pyrf_thread_map__doc,
 633         .tp_as_sequence = &pyrf_thread_map__sequence_methods,
 634         .tp_init        = (initproc)pyrf_thread_map__init,
 635 };
 636
 637 static int pyrf_thread_map__setup_types(void)
 638 {
 639         pyrf_thread_map__type.tp_new = PyType_GenericNew;
 640         return PyType_Ready(&pyrf_thread_map__type);
 641 }
 642
 643 struct pyrf_evsel {
 644         PyObject_HEAD
 645
 646         struct perf_evsel evsel;
 647 };
 648
 649 static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
 650                             PyObject *args, PyObject *kwargs)
 651 {
 652         struct perf_event_attr attr = {
 653                 .type = PERF_TYPE_HARDWARE,
 654                 .config = PERF_COUNT_HW_CPU_CYCLES,
 655                 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
 656         };
 657         static char *kwlist[] = {
 658                 "type",
 659                 "config",
 660                 "sample_freq",
 661                 "sample_period",
 662                 "sample_type",
 663                 "read_format",
 664                 "disabled",
 665                 "inherit",
 666                 "pinned",
 667                 "exclusive",
 668                 "exclude_user",
 669                 "exclude_kernel",
 670                 "exclude_hv",
 671                 "exclude_idle",
 672                 "mmap",
 673                 "context_switch",
 674                 "comm",
 675                 "freq",
 676                 "inherit_stat",
 677                 "enable_on_exec",
 678                 "task",
 679                 "watermark",
 680                 "precise_ip",
 681                 "mmap_data",
 682                 "sample_id_all",
 683                 "wakeup_events",
 684                 "bp_type",
 685                 "bp_addr",
 686                 "bp_len",
 687                  NULL
 688         };
 689         u64 sample_period = 0;
 690         u32 disabled = 0,
 691             inherit = 0,
 692             pinned = 0,
 693             exclusive = 0,
 694             exclude_user = 0,
 695             exclude_kernel = 0,
 696             exclude_hv = 0,
 697             exclude_idle = 0,
 698             mmap = 0,
 699             context_switch = 0,
 700             comm = 0,
 701             freq = 1,
 702             inherit_stat = 0,
 703             enable_on_exec = 0,
 704             task = 0,
 705             watermark = 0,
 706             precise_ip = 0,
 707             mmap_data = 0,
 708             sample_id_all = 1;
 709         int idx = 0;
 710
 711         if (!PyArg_ParseTupleAndKeywords(args, kwargs,
 712                                          "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
 713                                          &attr.type, &attr.config, &attr.sample_freq,
 714                                          &sample_period, &attr.sample_type,
 715                                          &attr.read_format, &disabled, &inherit,
 716                                          &pinned, &exclusive, &exclude_user,
 717                                          &exclude_kernel, &exclude_hv, &exclude_idle,
 718                                          &mmap, &context_switch, &comm, &freq, &inherit_stat,
 719                                          &enable_on_exec, &task, &watermark,
 720                                          &precise_ip, &mmap_data, &sample_id_all,
 721                                          &attr.wakeup_events, &attr.bp_type,
 722                                          &attr.bp_addr, &attr.bp_len, &idx))
 723                 return -1;
 724
 725         /* union... */
 726         if (sample_period != 0) {
 727                 if (attr.sample_freq != 0)
 728                         return -1; /* FIXME: throw right exception */
 729                 attr.sample_period = sample_period;
 730         }
 731
 732         /* Bitfields */
 733         attr.disabled       = disabled;
 734         attr.inherit        = inherit;
 735         attr.pinned         = pinned;
 736         attr.exclusive      = exclusive;
 737         attr.exclude_user   = exclude_user;
 738         attr.exclude_kernel = exclude_kernel;
 739         attr.exclude_hv     = exclude_hv;
 740         attr.exclude_idle   = exclude_idle;
 741         attr.mmap           = mmap;
 742         attr.context_switch = context_switch;
 743         attr.comm           = comm;
 744         attr.freq           = freq;
 745         attr.inherit_stat   = inherit_stat;
 746         attr.enable_on_exec = enable_on_exec;
 747         attr.task           = task;
 748         attr.watermark      = watermark;
 749         attr.precise_ip     = precise_ip;
 750         attr.mmap_data      = mmap_data;
 751         attr.sample_id_all  = sample_id_all;
 752         attr.size           = sizeof(attr);
 753
 754         perf_evsel__init(&pevsel->evsel, &attr, idx);
 755         return 0;
 756 }
 757
 758 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
 759 {
 760         perf_evsel__exit(&pevsel->evsel);
 761         pevsel->ob_type->tp_free((PyObject*)pevsel);
 762 }
 763
 764 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
 765                                   PyObject *args, PyObject *kwargs)
 766 {
 767         struct perf_evsel *evsel = &pevsel->evsel;
 768         struct cpu_map *cpus = NULL;
 769         struct thread_map *threads = NULL;
 770         PyObject *pcpus = NULL, *pthreads = NULL;
 771         int group = 0, inherit = 0;
 772         static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
 773
 774         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
 775                                          &pcpus, &pthreads, &group, &inherit))
 776                 return NULL;
 777
 778         if (pthreads != NULL)
 779                 threads = ((struct pyrf_thread_map *)pthreads)->threads;
 780
 781         if (pcpus != NULL)
 782                 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
 783
 784         evsel->attr.inherit = inherit;
 785         /*
 786          * This will group just the fds for this single evsel, to group
 787          * multiple events, use evlist.open().
 788          */
 789         if (perf_evsel__open(evsel, cpus, threads) < 0) {
 790                 PyErr_SetFromErrno(PyExc_OSError);
 791                 return NULL;
 792         }
 793
 794         Py_INCREF(Py_None);
 795         return Py_None;
 796 }
 797
 798 static PyMethodDef pyrf_evsel__methods[] = {
 799         {
 800                 .ml_name  = "open",
 801                 .ml_meth  = (PyCFunction)pyrf_evsel__open,
 802                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
 803                 .ml_doc   = PyDoc_STR("open the event selector file descriptor table.")
 804         },
 805         { .ml_name = NULL, }
 806 };
 807
 808 static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
 809
 810 static PyTypeObject pyrf_evsel__type = {
 811         PyVarObject_HEAD_INIT(NULL, 0)
 812         .tp_name        = "perf.evsel",
 813         .tp_basicsize   = sizeof(struct pyrf_evsel),
 814         .tp_dealloc     = (destructor)pyrf_evsel__delete,
 815         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 816         .tp_doc         = pyrf_evsel__doc,
 817         .tp_methods     = pyrf_evsel__methods,
 818         .tp_init        = (initproc)pyrf_evsel__init,
 819 };
 820
 821 static int pyrf_evsel__setup_types(void)
 822 {
 823         pyrf_evsel__type.tp_new = PyType_GenericNew;
 824         return PyType_Ready(&pyrf_evsel__type);
 825 }
 826
 827 struct pyrf_evlist {
 828         PyObject_HEAD
 829
 830         struct perf_evlist evlist;
 831 };
 832
 833 static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
 834                              PyObject *args, PyObject *kwargs __maybe_unused)
 835 {
 836         PyObject *pcpus = NULL, *pthreads = NULL;
 837         struct cpu_map *cpus;
 838         struct thread_map *threads;
 839
 840         if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
 841                 return -1;
 842
 843         threads = ((struct pyrf_thread_map *)pthreads)->threads;
 844         cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
 845         perf_evlist__init(&pevlist->evlist, cpus, threads);
 846         return 0;
 847 }
 848
 849 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
 850 {
 851         perf_evlist__exit(&pevlist->evlist);
 852         pevlist->ob_type->tp_free((PyObject*)pevlist);
 853 }
 854
 855 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
 856                                    PyObject *args, PyObject *kwargs)
 857 {
 858         struct perf_evlist *evlist = &pevlist->evlist;
 859         static char *kwlist[] = { "pages", "overwrite", NULL };
 860         int pages = 128, overwrite = false;
 861
 862         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
 863                                          &pages, &overwrite))
 864                 return NULL;
 865
 866         if (perf_evlist__mmap(evlist, pages, overwrite) < 0) {
 867                 PyErr_SetFromErrno(PyExc_OSError);
 868                 return NULL;
 869         }
 870
 871         Py_INCREF(Py_None);
 872         return Py_None;
 873 }
 874
 875 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
 876                                    PyObject *args, PyObject *kwargs)
 877 {
 878         struct perf_evlist *evlist = &pevlist->evlist;
 879         static char *kwlist[] = { "timeout", NULL };
 880         int timeout = -1, n;
 881
 882         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
 883                 return NULL;
 884
 885         n = perf_evlist__poll(evlist, timeout);
 886         if (n < 0) {
 887                 PyErr_SetFromErrno(PyExc_OSError);
 888                 return NULL;
 889         }
 890
 891         return Py_BuildValue("i", n);
 892 }
 893
 894 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
 895                                          PyObject *args __maybe_unused,
 896                                          PyObject *kwargs __maybe_unused)
 897 {
 898         struct perf_evlist *evlist = &pevlist->evlist;
 899         PyObject *list = PyList_New(0);
 900         int i;
 901
 902         for (i = 0; i < evlist->pollfd.nr; ++i) {
 903                 PyObject *file;
 904                 FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r");
 905
 906                 if (fp == NULL)
 907                         goto free_list;
 908
 909                 file = PyFile_FromFile(fp, "perf", "r", NULL);
 910                 if (file == NULL)
 911                         goto free_list;
 912
 913                 if (PyList_Append(list, file) != 0) {
 914                         Py_DECREF(file);
 915                         goto free_list;
 916                 }
 917
 918                 Py_DECREF(file);
 919         }
 920
 921         return list;
 922 free_list:
 923         return PyErr_NoMemory();
 924 }
 925
 926
 927 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
 928                                   PyObject *args,
 929                                   PyObject *kwargs __maybe_unused)
 930 {
 931         struct perf_evlist *evlist = &pevlist->evlist;
 932         PyObject *pevsel;
 933         struct perf_evsel *evsel;
 934
 935         if (!PyArg_ParseTuple(args, "O", &pevsel))
 936                 return NULL;
 937
 938         Py_INCREF(pevsel);
 939         evsel = &((struct pyrf_evsel *)pevsel)->evsel;
 940         evsel->idx = evlist->nr_entries;
 941         perf_evlist__add(evlist, evsel);
 942
 943         return Py_BuildValue("i", evlist->nr_entries);
 944 }
 945
 946 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
 947                                           PyObject *args, PyObject *kwargs)
 948 {
 949         struct perf_evlist *evlist = &pevlist->evlist;
 950         union perf_event *event;
 951         int sample_id_all = 1, cpu;
 952         static char *kwlist[] = { "cpu", "sample_id_all", NULL };
 953         int err;
 954
 955         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
 956                                          &cpu, &sample_id_all))
 957                 return NULL;
 958
 959         event = perf_evlist__mmap_read(evlist, cpu);
 960         if (event != NULL) {
 961                 PyObject *pyevent = pyrf_event__new(event);
 962                 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
 963                 struct perf_evsel *evsel;
 964
 965                 if (pyevent == NULL)
 966                         return PyErr_NoMemory();
 967
 968                 evsel = perf_evlist__event2evsel(evlist, event);
 969                 if (!evsel)
 970                         return Py_None;
 971
 972                 pevent->evsel = evsel;
 973
 974                 err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
 975
 976                 /* Consume the even only after we parsed it out. */
 977                 perf_evlist__mmap_consume(evlist, cpu);
 978
 979                 if (err)
 980                         return PyErr_Format(PyExc_OSError,
 981                                             "perf: can't parse sample, err=%d", err);
 982                 return pyevent;
 983         }
 984
 985         Py_INCREF(Py_None);
 986         return Py_None;
 987 }
 988
 989 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
 990                                    PyObject *args, PyObject *kwargs)
 991 {
 992         struct perf_evlist *evlist = &pevlist->evlist;
 993         int group = 0;
 994         static char *kwlist[] = { "group", NULL };
 995
 996         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
 997                 return NULL;
 998
 999         if (group)
1000                 perf_evlist__set_leader(evlist);
1001
1002         if (perf_evlist__open(evlist) < 0) {
1003                 PyErr_SetFromErrno(PyExc_OSError);
1004                 return NULL;
1005         }
1006
1007         Py_INCREF(Py_None);
1008         return Py_None;
1009 }
1010
1011 static PyMethodDef pyrf_evlist__methods[] = {
1012         {
1013                 .ml_name  = "mmap",
1014                 .ml_meth  = (PyCFunction)pyrf_evlist__mmap,
1015                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1016                 .ml_doc   = PyDoc_STR("mmap the file descriptor table.")
1017         },
1018         {
1019                 .ml_name  = "open",
1020                 .ml_meth  = (PyCFunction)pyrf_evlist__open,
1021                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1022                 .ml_doc   = PyDoc_STR("open the file descriptors.")
1023         },
1024         {
1025                 .ml_name  = "poll",
1026                 .ml_meth  = (PyCFunction)pyrf_evlist__poll,
1027                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1028                 .ml_doc   = PyDoc_STR("poll the file descriptor table.")
1029         },
1030         {
1031                 .ml_name  = "get_pollfd",
1032                 .ml_meth  = (PyCFunction)pyrf_evlist__get_pollfd,
1033                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1034                 .ml_doc   = PyDoc_STR("get the poll file descriptor table.")
1035         },
1036         {
1037                 .ml_name  = "add",
1038                 .ml_meth  = (PyCFunction)pyrf_evlist__add,
1039                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1040                 .ml_doc   = PyDoc_STR("adds an event selector to the list.")
1041         },
1042         {
1043                 .ml_name  = "read_on_cpu",
1044                 .ml_meth  = (PyCFunction)pyrf_evlist__read_on_cpu,
1045                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1046                 .ml_doc   = PyDoc_STR("reads an event.")
1047         },
1048         { .ml_name = NULL, }
1049 };
1050
1051 static Py_ssize_t pyrf_evlist__length(PyObject *obj)
1052 {
1053         struct pyrf_evlist *pevlist = (void *)obj;
1054
1055         return pevlist->evlist.nr_entries;
1056 }
1057
1058 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
1059 {
1060         struct pyrf_evlist *pevlist = (void *)obj;
1061         struct perf_evsel *pos;
1062
1063         if (i >= pevlist->evlist.nr_entries)
1064                 return NULL;
1065
1066         evlist__for_each_entry(&pevlist->evlist, pos) {
1067                 if (i-- == 0)
1068                         break;
1069         }
1070
1071         return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
1072 }
1073
1074 static PySequenceMethods pyrf_evlist__sequence_methods = {
1075         .sq_length = pyrf_evlist__length,
1076         .sq_item   = pyrf_evlist__item,
1077 };
1078
1079 static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
1080
1081 static PyTypeObject pyrf_evlist__type = {
1082         PyVarObject_HEAD_INIT(NULL, 0)
1083         .tp_name        = "perf.evlist",
1084         .tp_basicsize   = sizeof(struct pyrf_evlist),
1085         .tp_dealloc     = (destructor)pyrf_evlist__delete,
1086         .tp_flags       = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
1087         .tp_as_sequence = &pyrf_evlist__sequence_methods,
1088         .tp_doc         = pyrf_evlist__doc,
1089         .tp_methods     = pyrf_evlist__methods,
1090         .tp_init        = (initproc)pyrf_evlist__init,
1091 };
1092
1093 static int pyrf_evlist__setup_types(void)
1094 {
1095         pyrf_evlist__type.tp_new = PyType_GenericNew;
1096         return PyType_Ready(&pyrf_evlist__type);
1097 }
1098
1099 #define PERF_CONST(name) { #name, PERF_##name }
1100
1101 static struct {
1102         const char *name;
1103         int         value;
1104 } perf__constants[] = {
1105         PERF_CONST(TYPE_HARDWARE),
1106         PERF_CONST(TYPE_SOFTWARE),
1107         PERF_CONST(TYPE_TRACEPOINT),
1108         PERF_CONST(TYPE_HW_CACHE),
1109         PERF_CONST(TYPE_RAW),
1110         PERF_CONST(TYPE_BREAKPOINT),
1111
1112         PERF_CONST(COUNT_HW_CPU_CYCLES),
1113         PERF_CONST(COUNT_HW_INSTRUCTIONS),
1114         PERF_CONST(COUNT_HW_CACHE_REFERENCES),
1115         PERF_CONST(COUNT_HW_CACHE_MISSES),
1116         PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
1117         PERF_CONST(COUNT_HW_BRANCH_MISSES),
1118         PERF_CONST(COUNT_HW_BUS_CYCLES),
1119         PERF_CONST(COUNT_HW_CACHE_L1D),
1120         PERF_CONST(COUNT_HW_CACHE_L1I),
1121         PERF_CONST(COUNT_HW_CACHE_LL),
1122         PERF_CONST(COUNT_HW_CACHE_DTLB),
1123         PERF_CONST(COUNT_HW_CACHE_ITLB),
1124         PERF_CONST(COUNT_HW_CACHE_BPU),
1125         PERF_CONST(COUNT_HW_CACHE_OP_READ),
1126         PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
1127         PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
1128         PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
1129         PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
1130
1131         PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
1132         PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
1133
1134         PERF_CONST(COUNT_SW_CPU_CLOCK),
1135         PERF_CONST(COUNT_SW_TASK_CLOCK),
1136         PERF_CONST(COUNT_SW_PAGE_FAULTS),
1137         PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
1138         PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
1139         PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
1140         PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
1141         PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
1142         PERF_CONST(COUNT_SW_EMULATION_FAULTS),
1143         PERF_CONST(COUNT_SW_DUMMY),
1144
1145         PERF_CONST(SAMPLE_IP),
1146         PERF_CONST(SAMPLE_TID),
1147         PERF_CONST(SAMPLE_TIME),
1148         PERF_CONST(SAMPLE_ADDR),
1149         PERF_CONST(SAMPLE_READ),
1150         PERF_CONST(SAMPLE_CALLCHAIN),
1151         PERF_CONST(SAMPLE_ID),
1152         PERF_CONST(SAMPLE_CPU),
1153         PERF_CONST(SAMPLE_PERIOD),
1154         PERF_CONST(SAMPLE_STREAM_ID),
1155         PERF_CONST(SAMPLE_RAW),
1156
1157         PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
1158         PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
1159         PERF_CONST(FORMAT_ID),
1160         PERF_CONST(FORMAT_GROUP),
1161
1162         PERF_CONST(RECORD_MMAP),
1163         PERF_CONST(RECORD_LOST),
1164         PERF_CONST(RECORD_COMM),
1165         PERF_CONST(RECORD_EXIT),
1166         PERF_CONST(RECORD_THROTTLE),
1167         PERF_CONST(RECORD_UNTHROTTLE),
1168         PERF_CONST(RECORD_FORK),
1169         PERF_CONST(RECORD_READ),
1170         PERF_CONST(RECORD_SAMPLE),
1171         PERF_CONST(RECORD_MMAP2),
1172         PERF_CONST(RECORD_AUX),
1173         PERF_CONST(RECORD_ITRACE_START),
1174         PERF_CONST(RECORD_LOST_SAMPLES),
1175         PERF_CONST(RECORD_SWITCH),
1176         PERF_CONST(RECORD_SWITCH_CPU_WIDE),
1177
1178         PERF_CONST(RECORD_MISC_SWITCH_OUT),
1179         { .name = NULL, },
1180 };
1181
1182 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
1183                                   PyObject *args, PyObject *kwargs)
1184 {
1185         struct event_format *tp_format;
1186         static char *kwlist[] = { "sys", "name", NULL };
1187         char *sys  = NULL;
1188         char *name = NULL;
1189
1190         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
1191                                          &sys, &name))
1192                 return NULL;
1193
1194         tp_format = trace_event__tp_format(sys, name);
1195         if (IS_ERR(tp_format))
1196                 return PyInt_FromLong(-1);
1197
1198         return PyInt_FromLong(tp_format->id);
1199 }
1200
1201 static PyMethodDef perf__methods[] = {
1202         {
1203                 .ml_name  = "tracepoint",
1204                 .ml_meth  = (PyCFunction) pyrf__tracepoint,
1205                 .ml_flags = METH_VARARGS | METH_KEYWORDS,
1206                 .ml_doc   = PyDoc_STR("Get tracepoint config.")
1207         },
1208         { .ml_name = NULL, }
1209 };
1210
1211 PyMODINIT_FUNC initperf(void)
1212 {
1213         PyObject *obj;
1214         int i;
1215         PyObject *dict, *module = Py_InitModule("perf", perf__methods);
1216
1217         if (module == NULL ||
1218             pyrf_event__setup_types() < 0 ||
1219             pyrf_evlist__setup_types() < 0 ||
1220             pyrf_evsel__setup_types() < 0 ||
1221             pyrf_thread_map__setup_types() < 0 ||
1222             pyrf_cpu_map__setup_types() < 0)
1223                 return;
1224
1225         /* The page_size is placed in util object. */
1226         page_size = sysconf(_SC_PAGE_SIZE);
1227
1228         Py_INCREF(&pyrf_evlist__type);
1229         PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
1230
1231         Py_INCREF(&pyrf_evsel__type);
1232         PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
1233
1234         Py_INCREF(&pyrf_mmap_event__type);
1235         PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
1236
1237         Py_INCREF(&pyrf_lost_event__type);
1238         PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
1239
1240         Py_INCREF(&pyrf_comm_event__type);
1241         PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
1242
1243         Py_INCREF(&pyrf_task_event__type);
1244         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1245
1246         Py_INCREF(&pyrf_throttle_event__type);
1247         PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
1248
1249         Py_INCREF(&pyrf_task_event__type);
1250         PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
1251
1252         Py_INCREF(&pyrf_read_event__type);
1253         PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
1254
1255         Py_INCREF(&pyrf_sample_event__type);
1256         PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
1257
1258         Py_INCREF(&pyrf_context_switch_event__type);
1259         PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
1260
1261         Py_INCREF(&pyrf_thread_map__type);
1262         PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
1263
1264         Py_INCREF(&pyrf_cpu_map__type);
1265         PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
1266
1267         dict = PyModule_GetDict(module);
1268         if (dict == NULL)
1269                 goto error;
1270
1271         for (i = 0; perf__constants[i].name != NULL; i++) {
1272                 obj = PyInt_FromLong(perf__constants[i].value);
1273                 if (obj == NULL)
1274                         goto error;
1275                 PyDict_SetItemString(dict, perf__constants[i].name, obj);
1276                 Py_DECREF(obj);
1277         }
1278
1279 error:
1280         if (PyErr_Occurred())
1281                 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
1282 }
1283
1284 /*
1285  * Dummy, to avoid dragging all the test_attr infrastructure in the python
1286  * binding.
1287  */
1288 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
1289                      int fd, int group_fd, unsigned long flags)
1290 {
1291 }