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 "evlist.h" 8 #include "callchain.h" 9 #include "evsel.h" 10 #include "event.h" 11 #include "cpumap.h" 12 #include "print_binary.h" 13 #include "thread_map.h" 14 15 #if PY_MAJOR_VERSION < 3 16 #define _PyUnicode_FromString(arg) \ 17 PyString_FromString(arg) 18 #define _PyUnicode_AsString(arg) \ 19 PyString_AsString(arg) 20 #define _PyUnicode_FromFormat(...) \ 21 PyString_FromFormat(__VA_ARGS__) 22 #define _PyLong_FromLong(arg) \ 23 PyInt_FromLong(arg) 24 25 #else 26 27 #define _PyUnicode_FromString(arg) \ 28 PyUnicode_FromString(arg) 29 #define _PyUnicode_FromFormat(...) \ 30 PyUnicode_FromFormat(__VA_ARGS__) 31 #define _PyLong_FromLong(arg) \ 32 PyLong_FromLong(arg) 33 #endif 34 35 #ifndef Py_TYPE 36 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type) 37 #endif 38 39 /* 40 * Provide these two so that we don't have to link against callchain.c and 41 * start dragging hist.c, etc. 42 */ 43 struct callchain_param callchain_param; 44 45 int parse_callchain_record(const char *arg __maybe_unused, 46 struct callchain_param *param __maybe_unused) 47 { 48 return 0; 49 } 50 51 /* 52 * Support debug printing even though util/debug.c is not linked. That means 53 * implementing 'verbose' and 'eprintf'. 54 */ 55 int verbose; 56 57 int eprintf(int level, int var, const char *fmt, ...) 58 { 59 va_list args; 60 int ret = 0; 61 62 if (var >= level) { 63 va_start(args, fmt); 64 ret = vfprintf(stderr, fmt, args); 65 va_end(args); 66 } 67 68 return ret; 69 } 70 71 /* Define PyVarObject_HEAD_INIT for python 2.5 */ 72 #ifndef PyVarObject_HEAD_INIT 73 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size, 74 #endif 75 76 #if PY_MAJOR_VERSION < 3 77 PyMODINIT_FUNC initperf(void); 78 #else 79 PyMODINIT_FUNC PyInit_perf(void); 80 #endif 81 82 #define member_def(type, member, ptype, help) \ 83 { #member, ptype, \ 84 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \ 85 0, help } 86 87 #define sample_member_def(name, member, ptype, help) \ 88 { #name, ptype, \ 89 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \ 90 0, help } 91 92 struct pyrf_event { 93 PyObject_HEAD 94 struct perf_evsel *evsel; 95 struct perf_sample sample; 96 union perf_event event; 97 }; 98 99 #define sample_members \ 100 sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \ 101 sample_member_def(sample_pid, pid, T_INT, "event pid"), \ 102 sample_member_def(sample_tid, tid, T_INT, "event tid"), \ 103 sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \ 104 sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \ 105 sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \ 106 sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \ 107 sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \ 108 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"), 109 110 static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object."); 111 112 static PyMemberDef pyrf_mmap_event__members[] = { 113 sample_members 114 member_def(perf_event_header, type, T_UINT, "event type"), 115 member_def(perf_event_header, misc, T_UINT, "event misc"), 116 member_def(mmap_event, pid, T_UINT, "event pid"), 117 member_def(mmap_event, tid, T_UINT, "event tid"), 118 member_def(mmap_event, start, T_ULONGLONG, "start of the map"), 119 member_def(mmap_event, len, T_ULONGLONG, "map length"), 120 member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"), 121 member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"), 122 { .name = NULL, }, 123 }; 124 125 static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent) 126 { 127 PyObject *ret; 128 char *s; 129 130 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", " 131 "length: %#" PRIx64 ", offset: %#" PRIx64 ", " 132 "filename: %s }", 133 pevent->event.mmap.pid, pevent->event.mmap.tid, 134 pevent->event.mmap.start, pevent->event.mmap.len, 135 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) { 136 ret = PyErr_NoMemory(); 137 } else { 138 ret = _PyUnicode_FromString(s); 139 free(s); 140 } 141 return ret; 142 } 143 144 static PyTypeObject pyrf_mmap_event__type = { 145 PyVarObject_HEAD_INIT(NULL, 0) 146 .tp_name = "perf.mmap_event", 147 .tp_basicsize = sizeof(struct pyrf_event), 148 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 149 .tp_doc = pyrf_mmap_event__doc, 150 .tp_members = pyrf_mmap_event__members, 151 .tp_repr = (reprfunc)pyrf_mmap_event__repr, 152 }; 153 154 static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object."); 155 156 static PyMemberDef pyrf_task_event__members[] = { 157 sample_members 158 member_def(perf_event_header, type, T_UINT, "event type"), 159 member_def(fork_event, pid, T_UINT, "event pid"), 160 member_def(fork_event, ppid, T_UINT, "event ppid"), 161 member_def(fork_event, tid, T_UINT, "event tid"), 162 member_def(fork_event, ptid, T_UINT, "event ptid"), 163 member_def(fork_event, time, T_ULONGLONG, "timestamp"), 164 { .name = NULL, }, 165 }; 166 167 static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent) 168 { 169 return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, " 170 "ptid: %u, time: %" PRIu64 "}", 171 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit", 172 pevent->event.fork.pid, 173 pevent->event.fork.ppid, 174 pevent->event.fork.tid, 175 pevent->event.fork.ptid, 176 pevent->event.fork.time); 177 } 178 179 static PyTypeObject pyrf_task_event__type = { 180 PyVarObject_HEAD_INIT(NULL, 0) 181 .tp_name = "perf.task_event", 182 .tp_basicsize = sizeof(struct pyrf_event), 183 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 184 .tp_doc = pyrf_task_event__doc, 185 .tp_members = pyrf_task_event__members, 186 .tp_repr = (reprfunc)pyrf_task_event__repr, 187 }; 188 189 static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object."); 190 191 static PyMemberDef pyrf_comm_event__members[] = { 192 sample_members 193 member_def(perf_event_header, type, T_UINT, "event type"), 194 member_def(comm_event, pid, T_UINT, "event pid"), 195 member_def(comm_event, tid, T_UINT, "event tid"), 196 member_def(comm_event, comm, T_STRING_INPLACE, "process name"), 197 { .name = NULL, }, 198 }; 199 200 static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent) 201 { 202 return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }", 203 pevent->event.comm.pid, 204 pevent->event.comm.tid, 205 pevent->event.comm.comm); 206 } 207 208 static PyTypeObject pyrf_comm_event__type = { 209 PyVarObject_HEAD_INIT(NULL, 0) 210 .tp_name = "perf.comm_event", 211 .tp_basicsize = sizeof(struct pyrf_event), 212 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 213 .tp_doc = pyrf_comm_event__doc, 214 .tp_members = pyrf_comm_event__members, 215 .tp_repr = (reprfunc)pyrf_comm_event__repr, 216 }; 217 218 static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object."); 219 220 static PyMemberDef pyrf_throttle_event__members[] = { 221 sample_members 222 member_def(perf_event_header, type, T_UINT, "event type"), 223 member_def(throttle_event, time, T_ULONGLONG, "timestamp"), 224 member_def(throttle_event, id, T_ULONGLONG, "event id"), 225 member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"), 226 { .name = NULL, }, 227 }; 228 229 static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent) 230 { 231 struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1); 232 233 return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64 234 ", stream_id: %" PRIu64 " }", 235 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un", 236 te->time, te->id, te->stream_id); 237 } 238 239 static PyTypeObject pyrf_throttle_event__type = { 240 PyVarObject_HEAD_INIT(NULL, 0) 241 .tp_name = "perf.throttle_event", 242 .tp_basicsize = sizeof(struct pyrf_event), 243 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 244 .tp_doc = pyrf_throttle_event__doc, 245 .tp_members = pyrf_throttle_event__members, 246 .tp_repr = (reprfunc)pyrf_throttle_event__repr, 247 }; 248 249 static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object."); 250 251 static PyMemberDef pyrf_lost_event__members[] = { 252 sample_members 253 member_def(lost_event, id, T_ULONGLONG, "event id"), 254 member_def(lost_event, lost, T_ULONGLONG, "number of lost events"), 255 { .name = NULL, }, 256 }; 257 258 static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent) 259 { 260 PyObject *ret; 261 char *s; 262 263 if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", " 264 "lost: %#" PRIx64 " }", 265 pevent->event.lost.id, pevent->event.lost.lost) < 0) { 266 ret = PyErr_NoMemory(); 267 } else { 268 ret = _PyUnicode_FromString(s); 269 free(s); 270 } 271 return ret; 272 } 273 274 static PyTypeObject pyrf_lost_event__type = { 275 PyVarObject_HEAD_INIT(NULL, 0) 276 .tp_name = "perf.lost_event", 277 .tp_basicsize = sizeof(struct pyrf_event), 278 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 279 .tp_doc = pyrf_lost_event__doc, 280 .tp_members = pyrf_lost_event__members, 281 .tp_repr = (reprfunc)pyrf_lost_event__repr, 282 }; 283 284 static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object."); 285 286 static PyMemberDef pyrf_read_event__members[] = { 287 sample_members 288 member_def(read_event, pid, T_UINT, "event pid"), 289 member_def(read_event, tid, T_UINT, "event tid"), 290 { .name = NULL, }, 291 }; 292 293 static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent) 294 { 295 return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }", 296 pevent->event.read.pid, 297 pevent->event.read.tid); 298 /* 299 * FIXME: return the array of read values, 300 * making this method useful ;-) 301 */ 302 } 303 304 static PyTypeObject pyrf_read_event__type = { 305 PyVarObject_HEAD_INIT(NULL, 0) 306 .tp_name = "perf.read_event", 307 .tp_basicsize = sizeof(struct pyrf_event), 308 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 309 .tp_doc = pyrf_read_event__doc, 310 .tp_members = pyrf_read_event__members, 311 .tp_repr = (reprfunc)pyrf_read_event__repr, 312 }; 313 314 static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object."); 315 316 static PyMemberDef pyrf_sample_event__members[] = { 317 sample_members 318 member_def(perf_event_header, type, T_UINT, "event type"), 319 { .name = NULL, }, 320 }; 321 322 static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent) 323 { 324 PyObject *ret; 325 char *s; 326 327 if (asprintf(&s, "{ type: sample }") < 0) { 328 ret = PyErr_NoMemory(); 329 } else { 330 ret = _PyUnicode_FromString(s); 331 free(s); 332 } 333 return ret; 334 } 335 336 static bool is_tracepoint(struct pyrf_event *pevent) 337 { 338 return pevent->evsel->attr.type == PERF_TYPE_TRACEPOINT; 339 } 340 341 static PyObject* 342 tracepoint_field(struct pyrf_event *pe, struct format_field *field) 343 { 344 struct pevent *pevent = field->event->pevent; 345 void *data = pe->sample.raw_data; 346 PyObject *ret = NULL; 347 unsigned long long val; 348 unsigned int offset, len; 349 350 if (field->flags & FIELD_IS_ARRAY) { 351 offset = field->offset; 352 len = field->size; 353 if (field->flags & FIELD_IS_DYNAMIC) { 354 val = pevent_read_number(pevent, data + offset, len); 355 offset = val; 356 len = offset >> 16; 357 offset &= 0xffff; 358 } 359 if (field->flags & FIELD_IS_STRING && 360 is_printable_array(data + offset, len)) { 361 ret = _PyUnicode_FromString((char *)data + offset); 362 } else { 363 ret = PyByteArray_FromStringAndSize((const char *) data + offset, len); 364 field->flags &= ~FIELD_IS_STRING; 365 } 366 } else { 367 val = pevent_read_number(pevent, data + field->offset, 368 field->size); 369 if (field->flags & FIELD_IS_POINTER) 370 ret = PyLong_FromUnsignedLong((unsigned long) val); 371 else if (field->flags & FIELD_IS_SIGNED) 372 ret = PyLong_FromLong((long) val); 373 else 374 ret = PyLong_FromUnsignedLong((unsigned long) val); 375 } 376 377 return ret; 378 } 379 380 static PyObject* 381 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name) 382 { 383 const char *str = _PyUnicode_AsString(PyObject_Str(attr_name)); 384 struct perf_evsel *evsel = pevent->evsel; 385 struct format_field *field; 386 387 if (!evsel->tp_format) { 388 struct event_format *tp_format; 389 390 tp_format = trace_event__tp_format_id(evsel->attr.config); 391 if (!tp_format) 392 return NULL; 393 394 evsel->tp_format = tp_format; 395 } 396 397 field = pevent_find_any_field(evsel->tp_format, str); 398 if (!field) 399 return NULL; 400 401 return tracepoint_field(pevent, field); 402 } 403 404 static PyObject* 405 pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name) 406 { 407 PyObject *obj = NULL; 408 409 if (is_tracepoint(pevent)) 410 obj = get_tracepoint_field(pevent, attr_name); 411 412 return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name); 413 } 414 415 static PyTypeObject pyrf_sample_event__type = { 416 PyVarObject_HEAD_INIT(NULL, 0) 417 .tp_name = "perf.sample_event", 418 .tp_basicsize = sizeof(struct pyrf_event), 419 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 420 .tp_doc = pyrf_sample_event__doc, 421 .tp_members = pyrf_sample_event__members, 422 .tp_repr = (reprfunc)pyrf_sample_event__repr, 423 .tp_getattro = (getattrofunc) pyrf_sample_event__getattro, 424 }; 425 426 static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object."); 427 428 static PyMemberDef pyrf_context_switch_event__members[] = { 429 sample_members 430 member_def(perf_event_header, type, T_UINT, "event type"), 431 member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"), 432 member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"), 433 { .name = NULL, }, 434 }; 435 436 static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent) 437 { 438 PyObject *ret; 439 char *s; 440 441 if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }", 442 pevent->event.context_switch.next_prev_pid, 443 pevent->event.context_switch.next_prev_tid, 444 !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) { 445 ret = PyErr_NoMemory(); 446 } else { 447 ret = _PyUnicode_FromString(s); 448 free(s); 449 } 450 return ret; 451 } 452 453 static PyTypeObject pyrf_context_switch_event__type = { 454 PyVarObject_HEAD_INIT(NULL, 0) 455 .tp_name = "perf.context_switch_event", 456 .tp_basicsize = sizeof(struct pyrf_event), 457 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 458 .tp_doc = pyrf_context_switch_event__doc, 459 .tp_members = pyrf_context_switch_event__members, 460 .tp_repr = (reprfunc)pyrf_context_switch_event__repr, 461 }; 462 463 static int pyrf_event__setup_types(void) 464 { 465 int err; 466 pyrf_mmap_event__type.tp_new = 467 pyrf_task_event__type.tp_new = 468 pyrf_comm_event__type.tp_new = 469 pyrf_lost_event__type.tp_new = 470 pyrf_read_event__type.tp_new = 471 pyrf_sample_event__type.tp_new = 472 pyrf_context_switch_event__type.tp_new = 473 pyrf_throttle_event__type.tp_new = PyType_GenericNew; 474 err = PyType_Ready(&pyrf_mmap_event__type); 475 if (err < 0) 476 goto out; 477 err = PyType_Ready(&pyrf_lost_event__type); 478 if (err < 0) 479 goto out; 480 err = PyType_Ready(&pyrf_task_event__type); 481 if (err < 0) 482 goto out; 483 err = PyType_Ready(&pyrf_comm_event__type); 484 if (err < 0) 485 goto out; 486 err = PyType_Ready(&pyrf_throttle_event__type); 487 if (err < 0) 488 goto out; 489 err = PyType_Ready(&pyrf_read_event__type); 490 if (err < 0) 491 goto out; 492 err = PyType_Ready(&pyrf_sample_event__type); 493 if (err < 0) 494 goto out; 495 err = PyType_Ready(&pyrf_context_switch_event__type); 496 if (err < 0) 497 goto out; 498 out: 499 return err; 500 } 501 502 static PyTypeObject *pyrf_event__type[] = { 503 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type, 504 [PERF_RECORD_LOST] = &pyrf_lost_event__type, 505 [PERF_RECORD_COMM] = &pyrf_comm_event__type, 506 [PERF_RECORD_EXIT] = &pyrf_task_event__type, 507 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type, 508 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type, 509 [PERF_RECORD_FORK] = &pyrf_task_event__type, 510 [PERF_RECORD_READ] = &pyrf_read_event__type, 511 [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type, 512 [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type, 513 [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type, 514 }; 515 516 static PyObject *pyrf_event__new(union perf_event *event) 517 { 518 struct pyrf_event *pevent; 519 PyTypeObject *ptype; 520 521 if ((event->header.type < PERF_RECORD_MMAP || 522 event->header.type > PERF_RECORD_SAMPLE) && 523 !(event->header.type == PERF_RECORD_SWITCH || 524 event->header.type == PERF_RECORD_SWITCH_CPU_WIDE)) 525 return NULL; 526 527 ptype = pyrf_event__type[event->header.type]; 528 pevent = PyObject_New(struct pyrf_event, ptype); 529 if (pevent != NULL) 530 memcpy(&pevent->event, event, event->header.size); 531 return (PyObject *)pevent; 532 } 533 534 struct pyrf_cpu_map { 535 PyObject_HEAD 536 537 struct cpu_map *cpus; 538 }; 539 540 static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus, 541 PyObject *args, PyObject *kwargs) 542 { 543 static char *kwlist[] = { "cpustr", NULL }; 544 char *cpustr = NULL; 545 546 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s", 547 kwlist, &cpustr)) 548 return -1; 549 550 pcpus->cpus = cpu_map__new(cpustr); 551 if (pcpus->cpus == NULL) 552 return -1; 553 return 0; 554 } 555 556 static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus) 557 { 558 cpu_map__put(pcpus->cpus); 559 Py_TYPE(pcpus)->tp_free((PyObject*)pcpus); 560 } 561 562 static Py_ssize_t pyrf_cpu_map__length(PyObject *obj) 563 { 564 struct pyrf_cpu_map *pcpus = (void *)obj; 565 566 return pcpus->cpus->nr; 567 } 568 569 static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i) 570 { 571 struct pyrf_cpu_map *pcpus = (void *)obj; 572 573 if (i >= pcpus->cpus->nr) 574 return NULL; 575 576 return Py_BuildValue("i", pcpus->cpus->map[i]); 577 } 578 579 static PySequenceMethods pyrf_cpu_map__sequence_methods = { 580 .sq_length = pyrf_cpu_map__length, 581 .sq_item = pyrf_cpu_map__item, 582 }; 583 584 static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object."); 585 586 static PyTypeObject pyrf_cpu_map__type = { 587 PyVarObject_HEAD_INIT(NULL, 0) 588 .tp_name = "perf.cpu_map", 589 .tp_basicsize = sizeof(struct pyrf_cpu_map), 590 .tp_dealloc = (destructor)pyrf_cpu_map__delete, 591 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 592 .tp_doc = pyrf_cpu_map__doc, 593 .tp_as_sequence = &pyrf_cpu_map__sequence_methods, 594 .tp_init = (initproc)pyrf_cpu_map__init, 595 }; 596 597 static int pyrf_cpu_map__setup_types(void) 598 { 599 pyrf_cpu_map__type.tp_new = PyType_GenericNew; 600 return PyType_Ready(&pyrf_cpu_map__type); 601 } 602 603 struct pyrf_thread_map { 604 PyObject_HEAD 605 606 struct thread_map *threads; 607 }; 608 609 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads, 610 PyObject *args, PyObject *kwargs) 611 { 612 static char *kwlist[] = { "pid", "tid", "uid", NULL }; 613 int pid = -1, tid = -1, uid = UINT_MAX; 614 615 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii", 616 kwlist, &pid, &tid, &uid)) 617 return -1; 618 619 pthreads->threads = thread_map__new(pid, tid, uid); 620 if (pthreads->threads == NULL) 621 return -1; 622 return 0; 623 } 624 625 static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads) 626 { 627 thread_map__put(pthreads->threads); 628 Py_TYPE(pthreads)->tp_free((PyObject*)pthreads); 629 } 630 631 static Py_ssize_t pyrf_thread_map__length(PyObject *obj) 632 { 633 struct pyrf_thread_map *pthreads = (void *)obj; 634 635 return pthreads->threads->nr; 636 } 637 638 static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i) 639 { 640 struct pyrf_thread_map *pthreads = (void *)obj; 641 642 if (i >= pthreads->threads->nr) 643 return NULL; 644 645 return Py_BuildValue("i", pthreads->threads->map[i]); 646 } 647 648 static PySequenceMethods pyrf_thread_map__sequence_methods = { 649 .sq_length = pyrf_thread_map__length, 650 .sq_item = pyrf_thread_map__item, 651 }; 652 653 static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object."); 654 655 static PyTypeObject pyrf_thread_map__type = { 656 PyVarObject_HEAD_INIT(NULL, 0) 657 .tp_name = "perf.thread_map", 658 .tp_basicsize = sizeof(struct pyrf_thread_map), 659 .tp_dealloc = (destructor)pyrf_thread_map__delete, 660 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 661 .tp_doc = pyrf_thread_map__doc, 662 .tp_as_sequence = &pyrf_thread_map__sequence_methods, 663 .tp_init = (initproc)pyrf_thread_map__init, 664 }; 665 666 static int pyrf_thread_map__setup_types(void) 667 { 668 pyrf_thread_map__type.tp_new = PyType_GenericNew; 669 return PyType_Ready(&pyrf_thread_map__type); 670 } 671 672 struct pyrf_evsel { 673 PyObject_HEAD 674 675 struct perf_evsel evsel; 676 }; 677 678 static int pyrf_evsel__init(struct pyrf_evsel *pevsel, 679 PyObject *args, PyObject *kwargs) 680 { 681 struct perf_event_attr attr = { 682 .type = PERF_TYPE_HARDWARE, 683 .config = PERF_COUNT_HW_CPU_CYCLES, 684 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID, 685 }; 686 static char *kwlist[] = { 687 "type", 688 "config", 689 "sample_freq", 690 "sample_period", 691 "sample_type", 692 "read_format", 693 "disabled", 694 "inherit", 695 "pinned", 696 "exclusive", 697 "exclude_user", 698 "exclude_kernel", 699 "exclude_hv", 700 "exclude_idle", 701 "mmap", 702 "context_switch", 703 "comm", 704 "freq", 705 "inherit_stat", 706 "enable_on_exec", 707 "task", 708 "watermark", 709 "precise_ip", 710 "mmap_data", 711 "sample_id_all", 712 "wakeup_events", 713 "bp_type", 714 "bp_addr", 715 "bp_len", 716 NULL 717 }; 718 u64 sample_period = 0; 719 u32 disabled = 0, 720 inherit = 0, 721 pinned = 0, 722 exclusive = 0, 723 exclude_user = 0, 724 exclude_kernel = 0, 725 exclude_hv = 0, 726 exclude_idle = 0, 727 mmap = 0, 728 context_switch = 0, 729 comm = 0, 730 freq = 1, 731 inherit_stat = 0, 732 enable_on_exec = 0, 733 task = 0, 734 watermark = 0, 735 precise_ip = 0, 736 mmap_data = 0, 737 sample_id_all = 1; 738 int idx = 0; 739 740 if (!PyArg_ParseTupleAndKeywords(args, kwargs, 741 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist, 742 &attr.type, &attr.config, &attr.sample_freq, 743 &sample_period, &attr.sample_type, 744 &attr.read_format, &disabled, &inherit, 745 &pinned, &exclusive, &exclude_user, 746 &exclude_kernel, &exclude_hv, &exclude_idle, 747 &mmap, &context_switch, &comm, &freq, &inherit_stat, 748 &enable_on_exec, &task, &watermark, 749 &precise_ip, &mmap_data, &sample_id_all, 750 &attr.wakeup_events, &attr.bp_type, 751 &attr.bp_addr, &attr.bp_len, &idx)) 752 return -1; 753 754 /* union... */ 755 if (sample_period != 0) { 756 if (attr.sample_freq != 0) 757 return -1; /* FIXME: throw right exception */ 758 attr.sample_period = sample_period; 759 } 760 761 /* Bitfields */ 762 attr.disabled = disabled; 763 attr.inherit = inherit; 764 attr.pinned = pinned; 765 attr.exclusive = exclusive; 766 attr.exclude_user = exclude_user; 767 attr.exclude_kernel = exclude_kernel; 768 attr.exclude_hv = exclude_hv; 769 attr.exclude_idle = exclude_idle; 770 attr.mmap = mmap; 771 attr.context_switch = context_switch; 772 attr.comm = comm; 773 attr.freq = freq; 774 attr.inherit_stat = inherit_stat; 775 attr.enable_on_exec = enable_on_exec; 776 attr.task = task; 777 attr.watermark = watermark; 778 attr.precise_ip = precise_ip; 779 attr.mmap_data = mmap_data; 780 attr.sample_id_all = sample_id_all; 781 attr.size = sizeof(attr); 782 783 perf_evsel__init(&pevsel->evsel, &attr, idx); 784 return 0; 785 } 786 787 static void pyrf_evsel__delete(struct pyrf_evsel *pevsel) 788 { 789 perf_evsel__exit(&pevsel->evsel); 790 Py_TYPE(pevsel)->tp_free((PyObject*)pevsel); 791 } 792 793 static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel, 794 PyObject *args, PyObject *kwargs) 795 { 796 struct perf_evsel *evsel = &pevsel->evsel; 797 struct cpu_map *cpus = NULL; 798 struct thread_map *threads = NULL; 799 PyObject *pcpus = NULL, *pthreads = NULL; 800 int group = 0, inherit = 0; 801 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL }; 802 803 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, 804 &pcpus, &pthreads, &group, &inherit)) 805 return NULL; 806 807 if (pthreads != NULL) 808 threads = ((struct pyrf_thread_map *)pthreads)->threads; 809 810 if (pcpus != NULL) 811 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus; 812 813 evsel->attr.inherit = inherit; 814 /* 815 * This will group just the fds for this single evsel, to group 816 * multiple events, use evlist.open(). 817 */ 818 if (perf_evsel__open(evsel, cpus, threads) < 0) { 819 PyErr_SetFromErrno(PyExc_OSError); 820 return NULL; 821 } 822 823 Py_INCREF(Py_None); 824 return Py_None; 825 } 826 827 static PyMethodDef pyrf_evsel__methods[] = { 828 { 829 .ml_name = "open", 830 .ml_meth = (PyCFunction)pyrf_evsel__open, 831 .ml_flags = METH_VARARGS | METH_KEYWORDS, 832 .ml_doc = PyDoc_STR("open the event selector file descriptor table.") 833 }, 834 { .ml_name = NULL, } 835 }; 836 837 static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object."); 838 839 static PyTypeObject pyrf_evsel__type = { 840 PyVarObject_HEAD_INIT(NULL, 0) 841 .tp_name = "perf.evsel", 842 .tp_basicsize = sizeof(struct pyrf_evsel), 843 .tp_dealloc = (destructor)pyrf_evsel__delete, 844 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 845 .tp_doc = pyrf_evsel__doc, 846 .tp_methods = pyrf_evsel__methods, 847 .tp_init = (initproc)pyrf_evsel__init, 848 }; 849 850 static int pyrf_evsel__setup_types(void) 851 { 852 pyrf_evsel__type.tp_new = PyType_GenericNew; 853 return PyType_Ready(&pyrf_evsel__type); 854 } 855 856 struct pyrf_evlist { 857 PyObject_HEAD 858 859 struct perf_evlist evlist; 860 }; 861 862 static int pyrf_evlist__init(struct pyrf_evlist *pevlist, 863 PyObject *args, PyObject *kwargs __maybe_unused) 864 { 865 PyObject *pcpus = NULL, *pthreads = NULL; 866 struct cpu_map *cpus; 867 struct thread_map *threads; 868 869 if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads)) 870 return -1; 871 872 threads = ((struct pyrf_thread_map *)pthreads)->threads; 873 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus; 874 perf_evlist__init(&pevlist->evlist, cpus, threads); 875 return 0; 876 } 877 878 static void pyrf_evlist__delete(struct pyrf_evlist *pevlist) 879 { 880 perf_evlist__exit(&pevlist->evlist); 881 Py_TYPE(pevlist)->tp_free((PyObject*)pevlist); 882 } 883 884 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist, 885 PyObject *args, PyObject *kwargs) 886 { 887 struct perf_evlist *evlist = &pevlist->evlist; 888 static char *kwlist[] = { "pages", "overwrite", NULL }; 889 int pages = 128, overwrite = false; 890 891 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist, 892 &pages, &overwrite)) 893 return NULL; 894 895 if (perf_evlist__mmap(evlist, pages) < 0) { 896 PyErr_SetFromErrno(PyExc_OSError); 897 return NULL; 898 } 899 900 Py_INCREF(Py_None); 901 return Py_None; 902 } 903 904 static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist, 905 PyObject *args, PyObject *kwargs) 906 { 907 struct perf_evlist *evlist = &pevlist->evlist; 908 static char *kwlist[] = { "timeout", NULL }; 909 int timeout = -1, n; 910 911 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout)) 912 return NULL; 913 914 n = perf_evlist__poll(evlist, timeout); 915 if (n < 0) { 916 PyErr_SetFromErrno(PyExc_OSError); 917 return NULL; 918 } 919 920 return Py_BuildValue("i", n); 921 } 922 923 static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist, 924 PyObject *args __maybe_unused, 925 PyObject *kwargs __maybe_unused) 926 { 927 struct perf_evlist *evlist = &pevlist->evlist; 928 PyObject *list = PyList_New(0); 929 int i; 930 931 for (i = 0; i < evlist->pollfd.nr; ++i) { 932 PyObject *file; 933 #if PY_MAJOR_VERSION < 3 934 FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r"); 935 936 if (fp == NULL) 937 goto free_list; 938 939 file = PyFile_FromFile(fp, "perf", "r", NULL); 940 #else 941 file = PyFile_FromFd(evlist->pollfd.entries[i].fd, "perf", "r", -1, NULL, NULL, NULL, 1); 942 #endif 943 if (file == NULL) 944 goto free_list; 945 946 if (PyList_Append(list, file) != 0) { 947 Py_DECREF(file); 948 goto free_list; 949 } 950 951 Py_DECREF(file); 952 } 953 954 return list; 955 free_list: 956 return PyErr_NoMemory(); 957 } 958 959 960 static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist, 961 PyObject *args, 962 PyObject *kwargs __maybe_unused) 963 { 964 struct perf_evlist *evlist = &pevlist->evlist; 965 PyObject *pevsel; 966 struct perf_evsel *evsel; 967 968 if (!PyArg_ParseTuple(args, "O", &pevsel)) 969 return NULL; 970 971 Py_INCREF(pevsel); 972 evsel = &((struct pyrf_evsel *)pevsel)->evsel; 973 evsel->idx = evlist->nr_entries; 974 perf_evlist__add(evlist, evsel); 975 976 return Py_BuildValue("i", evlist->nr_entries); 977 } 978 979 static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist, 980 PyObject *args, PyObject *kwargs) 981 { 982 struct perf_evlist *evlist = &pevlist->evlist; 983 union perf_event *event; 984 int sample_id_all = 1, cpu; 985 static char *kwlist[] = { "cpu", "sample_id_all", NULL }; 986 struct perf_mmap *md; 987 int err; 988 989 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist, 990 &cpu, &sample_id_all)) 991 return NULL; 992 993 md = &evlist->mmap[cpu]; 994 if (perf_mmap__read_init(md) < 0) 995 goto end; 996 997 event = perf_mmap__read_event(md); 998 if (event != NULL) { 999 PyObject *pyevent = pyrf_event__new(event); 1000 struct pyrf_event *pevent = (struct pyrf_event *)pyevent; 1001 struct perf_evsel *evsel; 1002 1003 if (pyevent == NULL) 1004 return PyErr_NoMemory(); 1005 1006 evsel = perf_evlist__event2evsel(evlist, event); 1007 if (!evsel) { 1008 Py_INCREF(Py_None); 1009 return Py_None; 1010 } 1011 1012 pevent->evsel = evsel; 1013 1014 err = perf_evsel__parse_sample(evsel, event, &pevent->sample); 1015 1016 /* Consume the even only after we parsed it out. */ 1017 perf_mmap__consume(md); 1018 1019 if (err) 1020 return PyErr_Format(PyExc_OSError, 1021 "perf: can't parse sample, err=%d", err); 1022 return pyevent; 1023 } 1024 end: 1025 Py_INCREF(Py_None); 1026 return Py_None; 1027 } 1028 1029 static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist, 1030 PyObject *args, PyObject *kwargs) 1031 { 1032 struct perf_evlist *evlist = &pevlist->evlist; 1033 int group = 0; 1034 static char *kwlist[] = { "group", NULL }; 1035 1036 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group)) 1037 return NULL; 1038 1039 if (group) 1040 perf_evlist__set_leader(evlist); 1041 1042 if (perf_evlist__open(evlist) < 0) { 1043 PyErr_SetFromErrno(PyExc_OSError); 1044 return NULL; 1045 } 1046 1047 Py_INCREF(Py_None); 1048 return Py_None; 1049 } 1050 1051 static PyMethodDef pyrf_evlist__methods[] = { 1052 { 1053 .ml_name = "mmap", 1054 .ml_meth = (PyCFunction)pyrf_evlist__mmap, 1055 .ml_flags = METH_VARARGS | METH_KEYWORDS, 1056 .ml_doc = PyDoc_STR("mmap the file descriptor table.") 1057 }, 1058 { 1059 .ml_name = "open", 1060 .ml_meth = (PyCFunction)pyrf_evlist__open, 1061 .ml_flags = METH_VARARGS | METH_KEYWORDS, 1062 .ml_doc = PyDoc_STR("open the file descriptors.") 1063 }, 1064 { 1065 .ml_name = "poll", 1066 .ml_meth = (PyCFunction)pyrf_evlist__poll, 1067 .ml_flags = METH_VARARGS | METH_KEYWORDS, 1068 .ml_doc = PyDoc_STR("poll the file descriptor table.") 1069 }, 1070 { 1071 .ml_name = "get_pollfd", 1072 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd, 1073 .ml_flags = METH_VARARGS | METH_KEYWORDS, 1074 .ml_doc = PyDoc_STR("get the poll file descriptor table.") 1075 }, 1076 { 1077 .ml_name = "add", 1078 .ml_meth = (PyCFunction)pyrf_evlist__add, 1079 .ml_flags = METH_VARARGS | METH_KEYWORDS, 1080 .ml_doc = PyDoc_STR("adds an event selector to the list.") 1081 }, 1082 { 1083 .ml_name = "read_on_cpu", 1084 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu, 1085 .ml_flags = METH_VARARGS | METH_KEYWORDS, 1086 .ml_doc = PyDoc_STR("reads an event.") 1087 }, 1088 { .ml_name = NULL, } 1089 }; 1090 1091 static Py_ssize_t pyrf_evlist__length(PyObject *obj) 1092 { 1093 struct pyrf_evlist *pevlist = (void *)obj; 1094 1095 return pevlist->evlist.nr_entries; 1096 } 1097 1098 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i) 1099 { 1100 struct pyrf_evlist *pevlist = (void *)obj; 1101 struct perf_evsel *pos; 1102 1103 if (i >= pevlist->evlist.nr_entries) 1104 return NULL; 1105 1106 evlist__for_each_entry(&pevlist->evlist, pos) { 1107 if (i-- == 0) 1108 break; 1109 } 1110 1111 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel)); 1112 } 1113 1114 static PySequenceMethods pyrf_evlist__sequence_methods = { 1115 .sq_length = pyrf_evlist__length, 1116 .sq_item = pyrf_evlist__item, 1117 }; 1118 1119 static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object."); 1120 1121 static PyTypeObject pyrf_evlist__type = { 1122 PyVarObject_HEAD_INIT(NULL, 0) 1123 .tp_name = "perf.evlist", 1124 .tp_basicsize = sizeof(struct pyrf_evlist), 1125 .tp_dealloc = (destructor)pyrf_evlist__delete, 1126 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, 1127 .tp_as_sequence = &pyrf_evlist__sequence_methods, 1128 .tp_doc = pyrf_evlist__doc, 1129 .tp_methods = pyrf_evlist__methods, 1130 .tp_init = (initproc)pyrf_evlist__init, 1131 }; 1132 1133 static int pyrf_evlist__setup_types(void) 1134 { 1135 pyrf_evlist__type.tp_new = PyType_GenericNew; 1136 return PyType_Ready(&pyrf_evlist__type); 1137 } 1138 1139 #define PERF_CONST(name) { #name, PERF_##name } 1140 1141 static struct { 1142 const char *name; 1143 int value; 1144 } perf__constants[] = { 1145 PERF_CONST(TYPE_HARDWARE), 1146 PERF_CONST(TYPE_SOFTWARE), 1147 PERF_CONST(TYPE_TRACEPOINT), 1148 PERF_CONST(TYPE_HW_CACHE), 1149 PERF_CONST(TYPE_RAW), 1150 PERF_CONST(TYPE_BREAKPOINT), 1151 1152 PERF_CONST(COUNT_HW_CPU_CYCLES), 1153 PERF_CONST(COUNT_HW_INSTRUCTIONS), 1154 PERF_CONST(COUNT_HW_CACHE_REFERENCES), 1155 PERF_CONST(COUNT_HW_CACHE_MISSES), 1156 PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS), 1157 PERF_CONST(COUNT_HW_BRANCH_MISSES), 1158 PERF_CONST(COUNT_HW_BUS_CYCLES), 1159 PERF_CONST(COUNT_HW_CACHE_L1D), 1160 PERF_CONST(COUNT_HW_CACHE_L1I), 1161 PERF_CONST(COUNT_HW_CACHE_LL), 1162 PERF_CONST(COUNT_HW_CACHE_DTLB), 1163 PERF_CONST(COUNT_HW_CACHE_ITLB), 1164 PERF_CONST(COUNT_HW_CACHE_BPU), 1165 PERF_CONST(COUNT_HW_CACHE_OP_READ), 1166 PERF_CONST(COUNT_HW_CACHE_OP_WRITE), 1167 PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH), 1168 PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS), 1169 PERF_CONST(COUNT_HW_CACHE_RESULT_MISS), 1170 1171 PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND), 1172 PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND), 1173 1174 PERF_CONST(COUNT_SW_CPU_CLOCK), 1175 PERF_CONST(COUNT_SW_TASK_CLOCK), 1176 PERF_CONST(COUNT_SW_PAGE_FAULTS), 1177 PERF_CONST(COUNT_SW_CONTEXT_SWITCHES), 1178 PERF_CONST(COUNT_SW_CPU_MIGRATIONS), 1179 PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN), 1180 PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ), 1181 PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS), 1182 PERF_CONST(COUNT_SW_EMULATION_FAULTS), 1183 PERF_CONST(COUNT_SW_DUMMY), 1184 1185 PERF_CONST(SAMPLE_IP), 1186 PERF_CONST(SAMPLE_TID), 1187 PERF_CONST(SAMPLE_TIME), 1188 PERF_CONST(SAMPLE_ADDR), 1189 PERF_CONST(SAMPLE_READ), 1190 PERF_CONST(SAMPLE_CALLCHAIN), 1191 PERF_CONST(SAMPLE_ID), 1192 PERF_CONST(SAMPLE_CPU), 1193 PERF_CONST(SAMPLE_PERIOD), 1194 PERF_CONST(SAMPLE_STREAM_ID), 1195 PERF_CONST(SAMPLE_RAW), 1196 1197 PERF_CONST(FORMAT_TOTAL_TIME_ENABLED), 1198 PERF_CONST(FORMAT_TOTAL_TIME_RUNNING), 1199 PERF_CONST(FORMAT_ID), 1200 PERF_CONST(FORMAT_GROUP), 1201 1202 PERF_CONST(RECORD_MMAP), 1203 PERF_CONST(RECORD_LOST), 1204 PERF_CONST(RECORD_COMM), 1205 PERF_CONST(RECORD_EXIT), 1206 PERF_CONST(RECORD_THROTTLE), 1207 PERF_CONST(RECORD_UNTHROTTLE), 1208 PERF_CONST(RECORD_FORK), 1209 PERF_CONST(RECORD_READ), 1210 PERF_CONST(RECORD_SAMPLE), 1211 PERF_CONST(RECORD_MMAP2), 1212 PERF_CONST(RECORD_AUX), 1213 PERF_CONST(RECORD_ITRACE_START), 1214 PERF_CONST(RECORD_LOST_SAMPLES), 1215 PERF_CONST(RECORD_SWITCH), 1216 PERF_CONST(RECORD_SWITCH_CPU_WIDE), 1217 1218 PERF_CONST(RECORD_MISC_SWITCH_OUT), 1219 { .name = NULL, }, 1220 }; 1221 1222 static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel, 1223 PyObject *args, PyObject *kwargs) 1224 { 1225 struct event_format *tp_format; 1226 static char *kwlist[] = { "sys", "name", NULL }; 1227 char *sys = NULL; 1228 char *name = NULL; 1229 1230 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist, 1231 &sys, &name)) 1232 return NULL; 1233 1234 tp_format = trace_event__tp_format(sys, name); 1235 if (IS_ERR(tp_format)) 1236 return _PyLong_FromLong(-1); 1237 1238 return _PyLong_FromLong(tp_format->id); 1239 } 1240 1241 static PyMethodDef perf__methods[] = { 1242 { 1243 .ml_name = "tracepoint", 1244 .ml_meth = (PyCFunction) pyrf__tracepoint, 1245 .ml_flags = METH_VARARGS | METH_KEYWORDS, 1246 .ml_doc = PyDoc_STR("Get tracepoint config.") 1247 }, 1248 { .ml_name = NULL, } 1249 }; 1250 1251 #if PY_MAJOR_VERSION < 3 1252 PyMODINIT_FUNC initperf(void) 1253 #else 1254 PyMODINIT_FUNC PyInit_perf(void) 1255 #endif 1256 { 1257 PyObject *obj; 1258 int i; 1259 PyObject *dict; 1260 #if PY_MAJOR_VERSION < 3 1261 PyObject *module = Py_InitModule("perf", perf__methods); 1262 #else 1263 static struct PyModuleDef moduledef = { 1264 PyModuleDef_HEAD_INIT, 1265 "perf", /* m_name */ 1266 "", /* m_doc */ 1267 -1, /* m_size */ 1268 perf__methods, /* m_methods */ 1269 NULL, /* m_reload */ 1270 NULL, /* m_traverse */ 1271 NULL, /* m_clear */ 1272 NULL, /* m_free */ 1273 }; 1274 PyObject *module = PyModule_Create(&moduledef); 1275 #endif 1276 1277 if (module == NULL || 1278 pyrf_event__setup_types() < 0 || 1279 pyrf_evlist__setup_types() < 0 || 1280 pyrf_evsel__setup_types() < 0 || 1281 pyrf_thread_map__setup_types() < 0 || 1282 pyrf_cpu_map__setup_types() < 0) 1283 #if PY_MAJOR_VERSION < 3 1284 return; 1285 #else 1286 return module; 1287 #endif 1288 1289 /* The page_size is placed in util object. */ 1290 page_size = sysconf(_SC_PAGE_SIZE); 1291 1292 Py_INCREF(&pyrf_evlist__type); 1293 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type); 1294 1295 Py_INCREF(&pyrf_evsel__type); 1296 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type); 1297 1298 Py_INCREF(&pyrf_mmap_event__type); 1299 PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type); 1300 1301 Py_INCREF(&pyrf_lost_event__type); 1302 PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type); 1303 1304 Py_INCREF(&pyrf_comm_event__type); 1305 PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type); 1306 1307 Py_INCREF(&pyrf_task_event__type); 1308 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type); 1309 1310 Py_INCREF(&pyrf_throttle_event__type); 1311 PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type); 1312 1313 Py_INCREF(&pyrf_task_event__type); 1314 PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type); 1315 1316 Py_INCREF(&pyrf_read_event__type); 1317 PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type); 1318 1319 Py_INCREF(&pyrf_sample_event__type); 1320 PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type); 1321 1322 Py_INCREF(&pyrf_context_switch_event__type); 1323 PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type); 1324 1325 Py_INCREF(&pyrf_thread_map__type); 1326 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type); 1327 1328 Py_INCREF(&pyrf_cpu_map__type); 1329 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type); 1330 1331 dict = PyModule_GetDict(module); 1332 if (dict == NULL) 1333 goto error; 1334 1335 for (i = 0; perf__constants[i].name != NULL; i++) { 1336 obj = _PyLong_FromLong(perf__constants[i].value); 1337 if (obj == NULL) 1338 goto error; 1339 PyDict_SetItemString(dict, perf__constants[i].name, obj); 1340 Py_DECREF(obj); 1341 } 1342 1343 error: 1344 if (PyErr_Occurred()) 1345 PyErr_SetString(PyExc_ImportError, "perf: Init failed!"); 1346 #if PY_MAJOR_VERSION >= 3 1347 return module; 1348 #endif 1349 } 1350 1351 /* 1352 * Dummy, to avoid dragging all the test_attr infrastructure in the python 1353 * binding. 1354 */ 1355 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu, 1356 int fd, int group_fd, unsigned long flags) 1357 { 1358 } 1359