1 /* 2 * trace-event-python. Feed trace events to an embedded Python interpreter. 3 * 4 * Copyright (C) 2010 Tom Zanussi <[email protected]> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 * 20 */ 21 22 #include <Python.h> 23 24 #include <inttypes.h> 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 #include <stdbool.h> 29 #include <errno.h> 30 #include <linux/bitmap.h> 31 #include <linux/compiler.h> 32 #include <linux/time64.h> 33 #ifdef HAVE_LIBTRACEEVENT 34 #include <traceevent/event-parse.h> 35 #endif 36 37 #include "../build-id.h" 38 #include "../counts.h" 39 #include "../debug.h" 40 #include "../dso.h" 41 #include "../callchain.h" 42 #include "../env.h" 43 #include "../evsel.h" 44 #include "../event.h" 45 #include "../thread.h" 46 #include "../comm.h" 47 #include "../machine.h" 48 #include "../mem-info.h" 49 #include "../db-export.h" 50 #include "../thread-stack.h" 51 #include "../trace-event.h" 52 #include "../call-path.h" 53 #include "map.h" 54 #include "symbol.h" 55 #include "thread_map.h" 56 #include "print_binary.h" 57 #include "stat.h" 58 #include "mem-events.h" 59 #include "util/perf_regs.h" 60 61 #if PY_MAJOR_VERSION < 3 62 #define _PyUnicode_FromString(arg) \ 63 PyString_FromString(arg) 64 #define _PyUnicode_FromStringAndSize(arg1, arg2) \ 65 PyString_FromStringAndSize((arg1), (arg2)) 66 #define _PyBytes_FromStringAndSize(arg1, arg2) \ 67 PyString_FromStringAndSize((arg1), (arg2)) 68 #define _PyLong_FromLong(arg) \ 69 PyInt_FromLong(arg) 70 #define _PyLong_AsLong(arg) \ 71 PyInt_AsLong(arg) 72 #define _PyCapsule_New(arg1, arg2, arg3) \ 73 PyCObject_FromVoidPtr((arg1), (arg2)) 74 75 PyMODINIT_FUNC initperf_trace_context(void); 76 #else 77 #define _PyUnicode_FromString(arg) \ 78 PyUnicode_FromString(arg) 79 #define _PyUnicode_FromStringAndSize(arg1, arg2) \ 80 PyUnicode_FromStringAndSize((arg1), (arg2)) 81 #define _PyBytes_FromStringAndSize(arg1, arg2) \ 82 PyBytes_FromStringAndSize((arg1), (arg2)) 83 #define _PyLong_FromLong(arg) \ 84 PyLong_FromLong(arg) 85 #define _PyLong_AsLong(arg) \ 86 PyLong_AsLong(arg) 87 #define _PyCapsule_New(arg1, arg2, arg3) \ 88 PyCapsule_New((arg1), (arg2), (arg3)) 89 90 PyMODINIT_FUNC PyInit_perf_trace_context(void); 91 #endif 92 93 #ifdef HAVE_LIBTRACEEVENT 94 #define TRACE_EVENT_TYPE_MAX \ 95 ((1 << (sizeof(unsigned short) * 8)) - 1) 96 97 #define N_COMMON_FIELDS 7 98 99 static char *cur_field_name; 100 static int zero_flag_atom; 101 #endif 102 103 #define MAX_FIELDS 64 104 105 extern struct scripting_context *scripting_context; 106 107 static PyObject *main_module, *main_dict; 108 109 struct tables { 110 struct db_export dbe; 111 PyObject *evsel_handler; 112 PyObject *machine_handler; 113 PyObject *thread_handler; 114 PyObject *comm_handler; 115 PyObject *comm_thread_handler; 116 PyObject *dso_handler; 117 PyObject *symbol_handler; 118 PyObject *branch_type_handler; 119 PyObject *sample_handler; 120 PyObject *call_path_handler; 121 PyObject *call_return_handler; 122 PyObject *synth_handler; 123 PyObject *context_switch_handler; 124 bool db_export_mode; 125 }; 126 127 static struct tables tables_global; 128 129 static void handler_call_die(const char *handler_name) __noreturn; 130 static void handler_call_die(const char *handler_name) 131 { 132 PyErr_Print(); 133 Py_FatalError("problem in Python trace event handler"); 134 // Py_FatalError does not return 135 // but we have to make the compiler happy 136 abort(); 137 } 138 139 /* 140 * Insert val into the dictionary and decrement the reference counter. 141 * This is necessary for dictionaries since PyDict_SetItemString() does not 142 * steal a reference, as opposed to PyTuple_SetItem(). 143 */ 144 static void pydict_set_item_string_decref(PyObject *dict, const char *key, PyObject *val) 145 { 146 PyDict_SetItemString(dict, key, val); 147 Py_DECREF(val); 148 } 149 150 static PyObject *get_handler(const char *handler_name) 151 { 152 PyObject *handler; 153 154 handler = PyDict_GetItemString(main_dict, handler_name); 155 if (handler && !PyCallable_Check(handler)) 156 return NULL; 157 return handler; 158 } 159 160 static void call_object(PyObject *handler, PyObject *args, const char *die_msg) 161 { 162 PyObject *retval; 163 164 retval = PyObject_CallObject(handler, args); 165 if (retval == NULL) 166 handler_call_die(die_msg); 167 Py_DECREF(retval); 168 } 169 170 static void try_call_object(const char *handler_name, PyObject *args) 171 { 172 PyObject *handler; 173 174 handler = get_handler(handler_name); 175 if (handler) 176 call_object(handler, args, handler_name); 177 } 178 179 #ifdef HAVE_LIBTRACEEVENT 180 static int get_argument_count(PyObject *handler) 181 { 182 int arg_count = 0; 183 184 /* 185 * The attribute for the code object is func_code in Python 2, 186 * whereas it is __code__ in Python 3.0+. 187 */ 188 PyObject *code_obj = PyObject_GetAttrString(handler, 189 "func_code"); 190 if (PyErr_Occurred()) { 191 PyErr_Clear(); 192 code_obj = PyObject_GetAttrString(handler, 193 "__code__"); 194 } 195 PyErr_Clear(); 196 if (code_obj) { 197 PyObject *arg_count_obj = PyObject_GetAttrString(code_obj, 198 "co_argcount"); 199 if (arg_count_obj) { 200 arg_count = (int) _PyLong_AsLong(arg_count_obj); 201 Py_DECREF(arg_count_obj); 202 } 203 Py_DECREF(code_obj); 204 } 205 return arg_count; 206 } 207 208 static void define_value(enum tep_print_arg_type field_type, 209 const char *ev_name, 210 const char *field_name, 211 const char *field_value, 212 const char *field_str) 213 { 214 const char *handler_name = "define_flag_value"; 215 PyObject *t; 216 unsigned long long value; 217 unsigned n = 0; 218 219 if (field_type == TEP_PRINT_SYMBOL) 220 handler_name = "define_symbolic_value"; 221 222 t = PyTuple_New(4); 223 if (!t) 224 Py_FatalError("couldn't create Python tuple"); 225 226 value = eval_flag(field_value); 227 228 PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name)); 229 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name)); 230 PyTuple_SetItem(t, n++, _PyLong_FromLong(value)); 231 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_str)); 232 233 try_call_object(handler_name, t); 234 235 Py_DECREF(t); 236 } 237 238 static void define_values(enum tep_print_arg_type field_type, 239 struct tep_print_flag_sym *field, 240 const char *ev_name, 241 const char *field_name) 242 { 243 define_value(field_type, ev_name, field_name, field->value, 244 field->str); 245 246 if (field->next) 247 define_values(field_type, field->next, ev_name, field_name); 248 } 249 250 static void define_field(enum tep_print_arg_type field_type, 251 const char *ev_name, 252 const char *field_name, 253 const char *delim) 254 { 255 const char *handler_name = "define_flag_field"; 256 PyObject *t; 257 unsigned n = 0; 258 259 if (field_type == TEP_PRINT_SYMBOL) 260 handler_name = "define_symbolic_field"; 261 262 if (field_type == TEP_PRINT_FLAGS) 263 t = PyTuple_New(3); 264 else 265 t = PyTuple_New(2); 266 if (!t) 267 Py_FatalError("couldn't create Python tuple"); 268 269 PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name)); 270 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name)); 271 if (field_type == TEP_PRINT_FLAGS) 272 PyTuple_SetItem(t, n++, _PyUnicode_FromString(delim)); 273 274 try_call_object(handler_name, t); 275 276 Py_DECREF(t); 277 } 278 279 static void define_event_symbols(struct tep_event *event, 280 const char *ev_name, 281 struct tep_print_arg *args) 282 { 283 if (args == NULL) 284 return; 285 286 switch (args->type) { 287 case TEP_PRINT_NULL: 288 break; 289 case TEP_PRINT_ATOM: 290 define_value(TEP_PRINT_FLAGS, ev_name, cur_field_name, "0", 291 args->atom.atom); 292 zero_flag_atom = 0; 293 break; 294 case TEP_PRINT_FIELD: 295 free(cur_field_name); 296 cur_field_name = strdup(args->field.name); 297 break; 298 case TEP_PRINT_FLAGS: 299 define_event_symbols(event, ev_name, args->flags.field); 300 define_field(TEP_PRINT_FLAGS, ev_name, cur_field_name, 301 args->flags.delim); 302 define_values(TEP_PRINT_FLAGS, args->flags.flags, ev_name, 303 cur_field_name); 304 break; 305 case TEP_PRINT_SYMBOL: 306 define_event_symbols(event, ev_name, args->symbol.field); 307 define_field(TEP_PRINT_SYMBOL, ev_name, cur_field_name, NULL); 308 define_values(TEP_PRINT_SYMBOL, args->symbol.symbols, ev_name, 309 cur_field_name); 310 break; 311 case TEP_PRINT_HEX: 312 case TEP_PRINT_HEX_STR: 313 define_event_symbols(event, ev_name, args->hex.field); 314 define_event_symbols(event, ev_name, args->hex.size); 315 break; 316 case TEP_PRINT_INT_ARRAY: 317 define_event_symbols(event, ev_name, args->int_array.field); 318 define_event_symbols(event, ev_name, args->int_array.count); 319 define_event_symbols(event, ev_name, args->int_array.el_size); 320 break; 321 case TEP_PRINT_STRING: 322 break; 323 case TEP_PRINT_TYPE: 324 define_event_symbols(event, ev_name, args->typecast.item); 325 break; 326 case TEP_PRINT_OP: 327 if (strcmp(args->op.op, ":") == 0) 328 zero_flag_atom = 1; 329 define_event_symbols(event, ev_name, args->op.left); 330 define_event_symbols(event, ev_name, args->op.right); 331 break; 332 default: 333 /* gcc warns for these? */ 334 case TEP_PRINT_BSTRING: 335 case TEP_PRINT_DYNAMIC_ARRAY: 336 case TEP_PRINT_DYNAMIC_ARRAY_LEN: 337 case TEP_PRINT_FUNC: 338 case TEP_PRINT_BITMASK: 339 /* we should warn... */ 340 return; 341 } 342 343 if (args->next) 344 define_event_symbols(event, ev_name, args->next); 345 } 346 347 static PyObject *get_field_numeric_entry(struct tep_event *event, 348 struct tep_format_field *field, void *data) 349 { 350 bool is_array = field->flags & TEP_FIELD_IS_ARRAY; 351 PyObject *obj = NULL, *list = NULL; 352 unsigned long long val; 353 unsigned int item_size, n_items, i; 354 355 if (is_array) { 356 list = PyList_New(field->arraylen); 357 if (!list) 358 Py_FatalError("couldn't create Python list"); 359 item_size = field->size / field->arraylen; 360 n_items = field->arraylen; 361 } else { 362 item_size = field->size; 363 n_items = 1; 364 } 365 366 for (i = 0; i < n_items; i++) { 367 368 val = read_size(event, data + field->offset + i * item_size, 369 item_size); 370 if (field->flags & TEP_FIELD_IS_SIGNED) { 371 if ((long long)val >= LONG_MIN && 372 (long long)val <= LONG_MAX) 373 obj = _PyLong_FromLong(val); 374 else 375 obj = PyLong_FromLongLong(val); 376 } else { 377 if (val <= LONG_MAX) 378 obj = _PyLong_FromLong(val); 379 else 380 obj = PyLong_FromUnsignedLongLong(val); 381 } 382 if (is_array) 383 PyList_SET_ITEM(list, i, obj); 384 } 385 if (is_array) 386 obj = list; 387 return obj; 388 } 389 #endif 390 391 static const char *get_dsoname(struct map *map) 392 { 393 const char *dsoname = "[unknown]"; 394 struct dso *dso = map ? map__dso(map) : NULL; 395 396 if (dso) { 397 if (symbol_conf.show_kernel_path && dso__long_name(dso)) 398 dsoname = dso__long_name(dso); 399 else 400 dsoname = dso__name(dso); 401 } 402 403 return dsoname; 404 } 405 406 static unsigned long get_offset(struct symbol *sym, struct addr_location *al) 407 { 408 unsigned long offset; 409 410 if (al->addr < sym->end) 411 offset = al->addr - sym->start; 412 else 413 offset = al->addr - map__start(al->map) - sym->start; 414 415 return offset; 416 } 417 418 static PyObject *python_process_callchain(struct perf_sample *sample, 419 struct evsel *evsel, 420 struct addr_location *al) 421 { 422 PyObject *pylist; 423 struct callchain_cursor *cursor; 424 425 pylist = PyList_New(0); 426 if (!pylist) 427 Py_FatalError("couldn't create Python list"); 428 429 if (!symbol_conf.use_callchain || !sample->callchain) 430 goto exit; 431 432 cursor = get_tls_callchain_cursor(); 433 if (thread__resolve_callchain(al->thread, cursor, evsel, 434 sample, NULL, NULL, 435 scripting_max_stack) != 0) { 436 pr_err("Failed to resolve callchain. Skipping\n"); 437 goto exit; 438 } 439 callchain_cursor_commit(cursor); 440 441 442 while (1) { 443 PyObject *pyelem; 444 struct callchain_cursor_node *node; 445 node = callchain_cursor_current(cursor); 446 if (!node) 447 break; 448 449 pyelem = PyDict_New(); 450 if (!pyelem) 451 Py_FatalError("couldn't create Python dictionary"); 452 453 454 pydict_set_item_string_decref(pyelem, "ip", 455 PyLong_FromUnsignedLongLong(node->ip)); 456 457 if (node->ms.sym) { 458 PyObject *pysym = PyDict_New(); 459 if (!pysym) 460 Py_FatalError("couldn't create Python dictionary"); 461 pydict_set_item_string_decref(pysym, "start", 462 PyLong_FromUnsignedLongLong(node->ms.sym->start)); 463 pydict_set_item_string_decref(pysym, "end", 464 PyLong_FromUnsignedLongLong(node->ms.sym->end)); 465 pydict_set_item_string_decref(pysym, "binding", 466 _PyLong_FromLong(node->ms.sym->binding)); 467 pydict_set_item_string_decref(pysym, "name", 468 _PyUnicode_FromStringAndSize(node->ms.sym->name, 469 node->ms.sym->namelen)); 470 pydict_set_item_string_decref(pyelem, "sym", pysym); 471 472 if (node->ms.map) { 473 struct map *map = node->ms.map; 474 struct addr_location node_al; 475 unsigned long offset; 476 477 addr_location__init(&node_al); 478 node_al.addr = map__map_ip(map, node->ip); 479 node_al.map = map__get(map); 480 offset = get_offset(node->ms.sym, &node_al); 481 addr_location__exit(&node_al); 482 483 pydict_set_item_string_decref( 484 pyelem, "sym_off", 485 PyLong_FromUnsignedLongLong(offset)); 486 } 487 if (node->srcline && strcmp(":0", node->srcline)) { 488 pydict_set_item_string_decref( 489 pyelem, "sym_srcline", 490 _PyUnicode_FromString(node->srcline)); 491 } 492 } 493 494 if (node->ms.map) { 495 const char *dsoname = get_dsoname(node->ms.map); 496 497 pydict_set_item_string_decref(pyelem, "dso", 498 _PyUnicode_FromString(dsoname)); 499 } 500 501 callchain_cursor_advance(cursor); 502 PyList_Append(pylist, pyelem); 503 Py_DECREF(pyelem); 504 } 505 506 exit: 507 return pylist; 508 } 509 510 static PyObject *python_process_brstack(struct perf_sample *sample, 511 struct thread *thread) 512 { 513 struct branch_stack *br = sample->branch_stack; 514 struct branch_entry *entries = perf_sample__branch_entries(sample); 515 PyObject *pylist; 516 u64 i; 517 518 pylist = PyList_New(0); 519 if (!pylist) 520 Py_FatalError("couldn't create Python list"); 521 522 if (!(br && br->nr)) 523 goto exit; 524 525 for (i = 0; i < br->nr; i++) { 526 PyObject *pyelem; 527 struct addr_location al; 528 const char *dsoname; 529 530 pyelem = PyDict_New(); 531 if (!pyelem) 532 Py_FatalError("couldn't create Python dictionary"); 533 534 pydict_set_item_string_decref(pyelem, "from", 535 PyLong_FromUnsignedLongLong(entries[i].from)); 536 pydict_set_item_string_decref(pyelem, "to", 537 PyLong_FromUnsignedLongLong(entries[i].to)); 538 pydict_set_item_string_decref(pyelem, "mispred", 539 PyBool_FromLong(entries[i].flags.mispred)); 540 pydict_set_item_string_decref(pyelem, "predicted", 541 PyBool_FromLong(entries[i].flags.predicted)); 542 pydict_set_item_string_decref(pyelem, "in_tx", 543 PyBool_FromLong(entries[i].flags.in_tx)); 544 pydict_set_item_string_decref(pyelem, "abort", 545 PyBool_FromLong(entries[i].flags.abort)); 546 pydict_set_item_string_decref(pyelem, "cycles", 547 PyLong_FromUnsignedLongLong(entries[i].flags.cycles)); 548 549 addr_location__init(&al); 550 thread__find_map_fb(thread, sample->cpumode, 551 entries[i].from, &al); 552 dsoname = get_dsoname(al.map); 553 pydict_set_item_string_decref(pyelem, "from_dsoname", 554 _PyUnicode_FromString(dsoname)); 555 556 thread__find_map_fb(thread, sample->cpumode, 557 entries[i].to, &al); 558 dsoname = get_dsoname(al.map); 559 pydict_set_item_string_decref(pyelem, "to_dsoname", 560 _PyUnicode_FromString(dsoname)); 561 562 addr_location__exit(&al); 563 PyList_Append(pylist, pyelem); 564 Py_DECREF(pyelem); 565 } 566 567 exit: 568 return pylist; 569 } 570 571 static int get_symoff(struct symbol *sym, struct addr_location *al, 572 bool print_off, char *bf, int size) 573 { 574 unsigned long offset; 575 576 if (!sym || !sym->name[0]) 577 return scnprintf(bf, size, "%s", "[unknown]"); 578 579 if (!print_off) 580 return scnprintf(bf, size, "%s", sym->name); 581 582 offset = get_offset(sym, al); 583 584 return scnprintf(bf, size, "%s+0x%x", sym->name, offset); 585 } 586 587 static int get_br_mspred(struct branch_flags *flags, char *bf, int size) 588 { 589 if (!flags->mispred && !flags->predicted) 590 return scnprintf(bf, size, "%s", "-"); 591 592 if (flags->mispred) 593 return scnprintf(bf, size, "%s", "M"); 594 595 return scnprintf(bf, size, "%s", "P"); 596 } 597 598 static PyObject *python_process_brstacksym(struct perf_sample *sample, 599 struct thread *thread) 600 { 601 struct branch_stack *br = sample->branch_stack; 602 struct branch_entry *entries = perf_sample__branch_entries(sample); 603 PyObject *pylist; 604 u64 i; 605 char bf[512]; 606 607 pylist = PyList_New(0); 608 if (!pylist) 609 Py_FatalError("couldn't create Python list"); 610 611 if (!(br && br->nr)) 612 goto exit; 613 614 for (i = 0; i < br->nr; i++) { 615 PyObject *pyelem; 616 struct addr_location al; 617 618 addr_location__init(&al); 619 pyelem = PyDict_New(); 620 if (!pyelem) 621 Py_FatalError("couldn't create Python dictionary"); 622 623 thread__find_symbol_fb(thread, sample->cpumode, 624 entries[i].from, &al); 625 get_symoff(al.sym, &al, true, bf, sizeof(bf)); 626 pydict_set_item_string_decref(pyelem, "from", 627 _PyUnicode_FromString(bf)); 628 629 thread__find_symbol_fb(thread, sample->cpumode, 630 entries[i].to, &al); 631 get_symoff(al.sym, &al, true, bf, sizeof(bf)); 632 pydict_set_item_string_decref(pyelem, "to", 633 _PyUnicode_FromString(bf)); 634 635 get_br_mspred(&entries[i].flags, bf, sizeof(bf)); 636 pydict_set_item_string_decref(pyelem, "pred", 637 _PyUnicode_FromString(bf)); 638 639 if (entries[i].flags.in_tx) { 640 pydict_set_item_string_decref(pyelem, "in_tx", 641 _PyUnicode_FromString("X")); 642 } else { 643 pydict_set_item_string_decref(pyelem, "in_tx", 644 _PyUnicode_FromString("-")); 645 } 646 647 if (entries[i].flags.abort) { 648 pydict_set_item_string_decref(pyelem, "abort", 649 _PyUnicode_FromString("A")); 650 } else { 651 pydict_set_item_string_decref(pyelem, "abort", 652 _PyUnicode_FromString("-")); 653 } 654 655 PyList_Append(pylist, pyelem); 656 Py_DECREF(pyelem); 657 addr_location__exit(&al); 658 } 659 660 exit: 661 return pylist; 662 } 663 664 static PyObject *get_sample_value_as_tuple(struct sample_read_value *value, 665 u64 read_format) 666 { 667 PyObject *t; 668 669 t = PyTuple_New(3); 670 if (!t) 671 Py_FatalError("couldn't create Python tuple"); 672 PyTuple_SetItem(t, 0, PyLong_FromUnsignedLongLong(value->id)); 673 PyTuple_SetItem(t, 1, PyLong_FromUnsignedLongLong(value->value)); 674 if (read_format & PERF_FORMAT_LOST) 675 PyTuple_SetItem(t, 2, PyLong_FromUnsignedLongLong(value->lost)); 676 677 return t; 678 } 679 680 static void set_sample_read_in_dict(PyObject *dict_sample, 681 struct perf_sample *sample, 682 struct evsel *evsel) 683 { 684 u64 read_format = evsel->core.attr.read_format; 685 PyObject *values; 686 unsigned int i; 687 688 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { 689 pydict_set_item_string_decref(dict_sample, "time_enabled", 690 PyLong_FromUnsignedLongLong(sample->read.time_enabled)); 691 } 692 693 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { 694 pydict_set_item_string_decref(dict_sample, "time_running", 695 PyLong_FromUnsignedLongLong(sample->read.time_running)); 696 } 697 698 if (read_format & PERF_FORMAT_GROUP) 699 values = PyList_New(sample->read.group.nr); 700 else 701 values = PyList_New(1); 702 703 if (!values) 704 Py_FatalError("couldn't create Python list"); 705 706 if (read_format & PERF_FORMAT_GROUP) { 707 struct sample_read_value *v = sample->read.group.values; 708 709 i = 0; 710 sample_read_group__for_each(v, sample->read.group.nr, read_format) { 711 PyObject *t = get_sample_value_as_tuple(v, read_format); 712 PyList_SET_ITEM(values, i, t); 713 i++; 714 } 715 } else { 716 PyObject *t = get_sample_value_as_tuple(&sample->read.one, 717 read_format); 718 PyList_SET_ITEM(values, 0, t); 719 } 720 pydict_set_item_string_decref(dict_sample, "values", values); 721 } 722 723 static void set_sample_datasrc_in_dict(PyObject *dict, 724 struct perf_sample *sample) 725 { 726 struct mem_info mi = { .data_src.val = sample->data_src }; 727 char decode[100]; 728 729 pydict_set_item_string_decref(dict, "datasrc", 730 PyLong_FromUnsignedLongLong(sample->data_src)); 731 732 perf_script__meminfo_scnprintf(decode, 100, &mi); 733 734 pydict_set_item_string_decref(dict, "datasrc_decode", 735 _PyUnicode_FromString(decode)); 736 } 737 738 static void regs_map(struct regs_dump *regs, uint64_t mask, const char *arch, char *bf, int size) 739 { 740 unsigned int i = 0, r; 741 int printed = 0; 742 743 bf[0] = 0; 744 745 if (size <= 0) 746 return; 747 748 if (!regs || !regs->regs) 749 return; 750 751 for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) { 752 u64 val = regs->regs[i++]; 753 754 printed += scnprintf(bf + printed, size - printed, 755 "%5s:0x%" PRIx64 " ", 756 perf_reg_name(r, arch), val); 757 } 758 } 759 760 static int set_regs_in_dict(PyObject *dict, 761 struct perf_sample *sample, 762 struct evsel *evsel) 763 { 764 struct perf_event_attr *attr = &evsel->core.attr; 765 const char *arch = perf_env__arch(evsel__env(evsel)); 766 767 /* 768 * Here value 28 is a constant size which can be used to print 769 * one register value and its corresponds to: 770 * 16 chars is to specify 64 bit register in hexadecimal. 771 * 2 chars is for appending "0x" to the hexadecimal value and 772 * 10 chars is for register name. 773 */ 774 int size = __sw_hweight64(attr->sample_regs_intr) * 28; 775 char *bf = malloc(size); 776 if (!bf) 777 return -1; 778 779 regs_map(&sample->intr_regs, attr->sample_regs_intr, arch, bf, size); 780 781 pydict_set_item_string_decref(dict, "iregs", 782 _PyUnicode_FromString(bf)); 783 784 regs_map(&sample->user_regs, attr->sample_regs_user, arch, bf, size); 785 786 pydict_set_item_string_decref(dict, "uregs", 787 _PyUnicode_FromString(bf)); 788 free(bf); 789 790 return 0; 791 } 792 793 static void set_sym_in_dict(PyObject *dict, struct addr_location *al, 794 const char *dso_field, const char *dso_bid_field, 795 const char *dso_map_start, const char *dso_map_end, 796 const char *sym_field, const char *symoff_field) 797 { 798 char sbuild_id[SBUILD_ID_SIZE]; 799 800 if (al->map) { 801 struct dso *dso = map__dso(al->map); 802 803 pydict_set_item_string_decref(dict, dso_field, 804 _PyUnicode_FromString(dso__name(dso))); 805 build_id__sprintf(dso__bid(dso), sbuild_id); 806 pydict_set_item_string_decref(dict, dso_bid_field, 807 _PyUnicode_FromString(sbuild_id)); 808 pydict_set_item_string_decref(dict, dso_map_start, 809 PyLong_FromUnsignedLong(map__start(al->map))); 810 pydict_set_item_string_decref(dict, dso_map_end, 811 PyLong_FromUnsignedLong(map__end(al->map))); 812 } 813 if (al->sym) { 814 pydict_set_item_string_decref(dict, sym_field, 815 _PyUnicode_FromString(al->sym->name)); 816 pydict_set_item_string_decref(dict, symoff_field, 817 PyLong_FromUnsignedLong(get_offset(al->sym, al))); 818 } 819 } 820 821 static void set_sample_flags(PyObject *dict, u32 flags) 822 { 823 const char *ch = PERF_IP_FLAG_CHARS; 824 char *p, str[33]; 825 826 for (p = str; *ch; ch++, flags >>= 1) { 827 if (flags & 1) 828 *p++ = *ch; 829 } 830 *p = 0; 831 pydict_set_item_string_decref(dict, "flags", _PyUnicode_FromString(str)); 832 } 833 834 static void python_process_sample_flags(struct perf_sample *sample, PyObject *dict_sample) 835 { 836 char flags_disp[SAMPLE_FLAGS_BUF_SIZE]; 837 838 set_sample_flags(dict_sample, sample->flags); 839 perf_sample__sprintf_flags(sample->flags, flags_disp, sizeof(flags_disp)); 840 pydict_set_item_string_decref(dict_sample, "flags_disp", 841 _PyUnicode_FromString(flags_disp)); 842 } 843 844 static PyObject *get_perf_sample_dict(struct perf_sample *sample, 845 struct evsel *evsel, 846 struct addr_location *al, 847 struct addr_location *addr_al, 848 PyObject *callchain) 849 { 850 PyObject *dict, *dict_sample, *brstack, *brstacksym; 851 852 dict = PyDict_New(); 853 if (!dict) 854 Py_FatalError("couldn't create Python dictionary"); 855 856 dict_sample = PyDict_New(); 857 if (!dict_sample) 858 Py_FatalError("couldn't create Python dictionary"); 859 860 pydict_set_item_string_decref(dict, "ev_name", _PyUnicode_FromString(evsel__name(evsel))); 861 pydict_set_item_string_decref(dict, "attr", _PyBytes_FromStringAndSize((const char *)&evsel->core.attr, sizeof(evsel->core.attr))); 862 863 pydict_set_item_string_decref(dict_sample, "id", 864 PyLong_FromUnsignedLongLong(sample->id)); 865 pydict_set_item_string_decref(dict_sample, "stream_id", 866 PyLong_FromUnsignedLongLong(sample->stream_id)); 867 pydict_set_item_string_decref(dict_sample, "pid", 868 _PyLong_FromLong(sample->pid)); 869 pydict_set_item_string_decref(dict_sample, "tid", 870 _PyLong_FromLong(sample->tid)); 871 pydict_set_item_string_decref(dict_sample, "cpu", 872 _PyLong_FromLong(sample->cpu)); 873 pydict_set_item_string_decref(dict_sample, "ip", 874 PyLong_FromUnsignedLongLong(sample->ip)); 875 pydict_set_item_string_decref(dict_sample, "time", 876 PyLong_FromUnsignedLongLong(sample->time)); 877 pydict_set_item_string_decref(dict_sample, "period", 878 PyLong_FromUnsignedLongLong(sample->period)); 879 pydict_set_item_string_decref(dict_sample, "phys_addr", 880 PyLong_FromUnsignedLongLong(sample->phys_addr)); 881 pydict_set_item_string_decref(dict_sample, "addr", 882 PyLong_FromUnsignedLongLong(sample->addr)); 883 set_sample_read_in_dict(dict_sample, sample, evsel); 884 pydict_set_item_string_decref(dict_sample, "weight", 885 PyLong_FromUnsignedLongLong(sample->weight)); 886 pydict_set_item_string_decref(dict_sample, "transaction", 887 PyLong_FromUnsignedLongLong(sample->transaction)); 888 set_sample_datasrc_in_dict(dict_sample, sample); 889 pydict_set_item_string_decref(dict, "sample", dict_sample); 890 891 pydict_set_item_string_decref(dict, "raw_buf", _PyBytes_FromStringAndSize( 892 (const char *)sample->raw_data, sample->raw_size)); 893 pydict_set_item_string_decref(dict, "comm", 894 _PyUnicode_FromString(thread__comm_str(al->thread))); 895 set_sym_in_dict(dict, al, "dso", "dso_bid", "dso_map_start", "dso_map_end", 896 "symbol", "symoff"); 897 898 pydict_set_item_string_decref(dict, "callchain", callchain); 899 900 brstack = python_process_brstack(sample, al->thread); 901 pydict_set_item_string_decref(dict, "brstack", brstack); 902 903 brstacksym = python_process_brstacksym(sample, al->thread); 904 pydict_set_item_string_decref(dict, "brstacksym", brstacksym); 905 906 if (sample->machine_pid) { 907 pydict_set_item_string_decref(dict_sample, "machine_pid", 908 _PyLong_FromLong(sample->machine_pid)); 909 pydict_set_item_string_decref(dict_sample, "vcpu", 910 _PyLong_FromLong(sample->vcpu)); 911 } 912 913 pydict_set_item_string_decref(dict_sample, "cpumode", 914 _PyLong_FromLong((unsigned long)sample->cpumode)); 915 916 if (addr_al) { 917 pydict_set_item_string_decref(dict_sample, "addr_correlates_sym", 918 PyBool_FromLong(1)); 919 set_sym_in_dict(dict_sample, addr_al, "addr_dso", "addr_dso_bid", 920 "addr_dso_map_start", "addr_dso_map_end", 921 "addr_symbol", "addr_symoff"); 922 } 923 924 if (sample->flags) 925 python_process_sample_flags(sample, dict_sample); 926 927 /* Instructions per cycle (IPC) */ 928 if (sample->insn_cnt && sample->cyc_cnt) { 929 pydict_set_item_string_decref(dict_sample, "insn_cnt", 930 PyLong_FromUnsignedLongLong(sample->insn_cnt)); 931 pydict_set_item_string_decref(dict_sample, "cyc_cnt", 932 PyLong_FromUnsignedLongLong(sample->cyc_cnt)); 933 } 934 935 if (set_regs_in_dict(dict, sample, evsel)) 936 Py_FatalError("Failed to setting regs in dict"); 937 938 return dict; 939 } 940 941 #ifdef HAVE_LIBTRACEEVENT 942 static void python_process_tracepoint(struct perf_sample *sample, 943 struct evsel *evsel, 944 struct addr_location *al, 945 struct addr_location *addr_al) 946 { 947 struct tep_event *event = evsel->tp_format; 948 PyObject *handler, *context, *t, *obj = NULL, *callchain; 949 PyObject *dict = NULL, *all_entries_dict = NULL; 950 static char handler_name[256]; 951 struct tep_format_field *field; 952 unsigned long s, ns; 953 unsigned n = 0; 954 int pid; 955 int cpu = sample->cpu; 956 void *data = sample->raw_data; 957 unsigned long long nsecs = sample->time; 958 const char *comm = thread__comm_str(al->thread); 959 const char *default_handler_name = "trace_unhandled"; 960 DECLARE_BITMAP(events_defined, TRACE_EVENT_TYPE_MAX); 961 962 bitmap_zero(events_defined, TRACE_EVENT_TYPE_MAX); 963 964 if (!event) { 965 snprintf(handler_name, sizeof(handler_name), 966 "ug! no event found for type %" PRIu64, (u64)evsel->core.attr.config); 967 Py_FatalError(handler_name); 968 } 969 970 pid = raw_field_value(event, "common_pid", data); 971 972 sprintf(handler_name, "%s__%s", event->system, event->name); 973 974 if (!__test_and_set_bit(event->id, events_defined)) 975 define_event_symbols(event, handler_name, event->print_fmt.args); 976 977 handler = get_handler(handler_name); 978 if (!handler) { 979 handler = get_handler(default_handler_name); 980 if (!handler) 981 return; 982 dict = PyDict_New(); 983 if (!dict) 984 Py_FatalError("couldn't create Python dict"); 985 } 986 987 t = PyTuple_New(MAX_FIELDS); 988 if (!t) 989 Py_FatalError("couldn't create Python tuple"); 990 991 992 s = nsecs / NSEC_PER_SEC; 993 ns = nsecs - s * NSEC_PER_SEC; 994 995 context = _PyCapsule_New(scripting_context, NULL, NULL); 996 997 PyTuple_SetItem(t, n++, _PyUnicode_FromString(handler_name)); 998 PyTuple_SetItem(t, n++, context); 999 1000 /* ip unwinding */ 1001 callchain = python_process_callchain(sample, evsel, al); 1002 /* Need an additional reference for the perf_sample dict */ 1003 Py_INCREF(callchain); 1004 1005 if (!dict) { 1006 PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu)); 1007 PyTuple_SetItem(t, n++, _PyLong_FromLong(s)); 1008 PyTuple_SetItem(t, n++, _PyLong_FromLong(ns)); 1009 PyTuple_SetItem(t, n++, _PyLong_FromLong(pid)); 1010 PyTuple_SetItem(t, n++, _PyUnicode_FromString(comm)); 1011 PyTuple_SetItem(t, n++, callchain); 1012 } else { 1013 pydict_set_item_string_decref(dict, "common_cpu", _PyLong_FromLong(cpu)); 1014 pydict_set_item_string_decref(dict, "common_s", _PyLong_FromLong(s)); 1015 pydict_set_item_string_decref(dict, "common_ns", _PyLong_FromLong(ns)); 1016 pydict_set_item_string_decref(dict, "common_pid", _PyLong_FromLong(pid)); 1017 pydict_set_item_string_decref(dict, "common_comm", _PyUnicode_FromString(comm)); 1018 pydict_set_item_string_decref(dict, "common_callchain", callchain); 1019 } 1020 for (field = event->format.fields; field; field = field->next) { 1021 unsigned int offset, len; 1022 unsigned long long val; 1023 1024 if (field->flags & TEP_FIELD_IS_ARRAY) { 1025 offset = field->offset; 1026 len = field->size; 1027 if (field->flags & TEP_FIELD_IS_DYNAMIC) { 1028 val = tep_read_number(scripting_context->pevent, 1029 data + offset, len); 1030 offset = val; 1031 len = offset >> 16; 1032 offset &= 0xffff; 1033 if (tep_field_is_relative(field->flags)) 1034 offset += field->offset + field->size; 1035 } 1036 if (field->flags & TEP_FIELD_IS_STRING && 1037 is_printable_array(data + offset, len)) { 1038 obj = _PyUnicode_FromString((char *) data + offset); 1039 } else { 1040 obj = PyByteArray_FromStringAndSize((const char *) data + offset, len); 1041 field->flags &= ~TEP_FIELD_IS_STRING; 1042 } 1043 } else { /* FIELD_IS_NUMERIC */ 1044 obj = get_field_numeric_entry(event, field, data); 1045 } 1046 if (!dict) 1047 PyTuple_SetItem(t, n++, obj); 1048 else 1049 pydict_set_item_string_decref(dict, field->name, obj); 1050 1051 } 1052 1053 if (dict) 1054 PyTuple_SetItem(t, n++, dict); 1055 1056 if (get_argument_count(handler) == (int) n + 1) { 1057 all_entries_dict = get_perf_sample_dict(sample, evsel, al, addr_al, 1058 callchain); 1059 PyTuple_SetItem(t, n++, all_entries_dict); 1060 } else { 1061 Py_DECREF(callchain); 1062 } 1063 1064 if (_PyTuple_Resize(&t, n) == -1) 1065 Py_FatalError("error resizing Python tuple"); 1066 1067 if (!dict) 1068 call_object(handler, t, handler_name); 1069 else 1070 call_object(handler, t, default_handler_name); 1071 1072 Py_DECREF(t); 1073 } 1074 #else 1075 static void python_process_tracepoint(struct perf_sample *sample __maybe_unused, 1076 struct evsel *evsel __maybe_unused, 1077 struct addr_location *al __maybe_unused, 1078 struct addr_location *addr_al __maybe_unused) 1079 { 1080 fprintf(stderr, "Tracepoint events are not supported because " 1081 "perf is not linked with libtraceevent.\n"); 1082 } 1083 #endif 1084 1085 static PyObject *tuple_new(unsigned int sz) 1086 { 1087 PyObject *t; 1088 1089 t = PyTuple_New(sz); 1090 if (!t) 1091 Py_FatalError("couldn't create Python tuple"); 1092 return t; 1093 } 1094 1095 static int tuple_set_s64(PyObject *t, unsigned int pos, s64 val) 1096 { 1097 #if BITS_PER_LONG == 64 1098 return PyTuple_SetItem(t, pos, _PyLong_FromLong(val)); 1099 #endif 1100 #if BITS_PER_LONG == 32 1101 return PyTuple_SetItem(t, pos, PyLong_FromLongLong(val)); 1102 #endif 1103 } 1104 1105 /* 1106 * Databases support only signed 64-bit numbers, so even though we are 1107 * exporting a u64, it must be as s64. 1108 */ 1109 #define tuple_set_d64 tuple_set_s64 1110 1111 static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val) 1112 { 1113 #if BITS_PER_LONG == 64 1114 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val)); 1115 #endif 1116 #if BITS_PER_LONG == 32 1117 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLongLong(val)); 1118 #endif 1119 } 1120 1121 static int tuple_set_u32(PyObject *t, unsigned int pos, u32 val) 1122 { 1123 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val)); 1124 } 1125 1126 static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val) 1127 { 1128 return PyTuple_SetItem(t, pos, _PyLong_FromLong(val)); 1129 } 1130 1131 static int tuple_set_bool(PyObject *t, unsigned int pos, bool val) 1132 { 1133 return PyTuple_SetItem(t, pos, PyBool_FromLong(val)); 1134 } 1135 1136 static int tuple_set_string(PyObject *t, unsigned int pos, const char *s) 1137 { 1138 return PyTuple_SetItem(t, pos, _PyUnicode_FromString(s)); 1139 } 1140 1141 static int tuple_set_bytes(PyObject *t, unsigned int pos, void *bytes, 1142 unsigned int sz) 1143 { 1144 return PyTuple_SetItem(t, pos, _PyBytes_FromStringAndSize(bytes, sz)); 1145 } 1146 1147 static int python_export_evsel(struct db_export *dbe, struct evsel *evsel) 1148 { 1149 struct tables *tables = container_of(dbe, struct tables, dbe); 1150 PyObject *t; 1151 1152 t = tuple_new(2); 1153 1154 tuple_set_d64(t, 0, evsel->db_id); 1155 tuple_set_string(t, 1, evsel__name(evsel)); 1156 1157 call_object(tables->evsel_handler, t, "evsel_table"); 1158 1159 Py_DECREF(t); 1160 1161 return 0; 1162 } 1163 1164 static int python_export_machine(struct db_export *dbe, 1165 struct machine *machine) 1166 { 1167 struct tables *tables = container_of(dbe, struct tables, dbe); 1168 PyObject *t; 1169 1170 t = tuple_new(3); 1171 1172 tuple_set_d64(t, 0, machine->db_id); 1173 tuple_set_s32(t, 1, machine->pid); 1174 tuple_set_string(t, 2, machine->root_dir ? machine->root_dir : ""); 1175 1176 call_object(tables->machine_handler, t, "machine_table"); 1177 1178 Py_DECREF(t); 1179 1180 return 0; 1181 } 1182 1183 static int python_export_thread(struct db_export *dbe, struct thread *thread, 1184 u64 main_thread_db_id, struct machine *machine) 1185 { 1186 struct tables *tables = container_of(dbe, struct tables, dbe); 1187 PyObject *t; 1188 1189 t = tuple_new(5); 1190 1191 tuple_set_d64(t, 0, thread__db_id(thread)); 1192 tuple_set_d64(t, 1, machine->db_id); 1193 tuple_set_d64(t, 2, main_thread_db_id); 1194 tuple_set_s32(t, 3, thread__pid(thread)); 1195 tuple_set_s32(t, 4, thread__tid(thread)); 1196 1197 call_object(tables->thread_handler, t, "thread_table"); 1198 1199 Py_DECREF(t); 1200 1201 return 0; 1202 } 1203 1204 static int python_export_comm(struct db_export *dbe, struct comm *comm, 1205 struct thread *thread) 1206 { 1207 struct tables *tables = container_of(dbe, struct tables, dbe); 1208 PyObject *t; 1209 1210 t = tuple_new(5); 1211 1212 tuple_set_d64(t, 0, comm->db_id); 1213 tuple_set_string(t, 1, comm__str(comm)); 1214 tuple_set_d64(t, 2, thread__db_id(thread)); 1215 tuple_set_d64(t, 3, comm->start); 1216 tuple_set_s32(t, 4, comm->exec); 1217 1218 call_object(tables->comm_handler, t, "comm_table"); 1219 1220 Py_DECREF(t); 1221 1222 return 0; 1223 } 1224 1225 static int python_export_comm_thread(struct db_export *dbe, u64 db_id, 1226 struct comm *comm, struct thread *thread) 1227 { 1228 struct tables *tables = container_of(dbe, struct tables, dbe); 1229 PyObject *t; 1230 1231 t = tuple_new(3); 1232 1233 tuple_set_d64(t, 0, db_id); 1234 tuple_set_d64(t, 1, comm->db_id); 1235 tuple_set_d64(t, 2, thread__db_id(thread)); 1236 1237 call_object(tables->comm_thread_handler, t, "comm_thread_table"); 1238 1239 Py_DECREF(t); 1240 1241 return 0; 1242 } 1243 1244 static int python_export_dso(struct db_export *dbe, struct dso *dso, 1245 struct machine *machine) 1246 { 1247 struct tables *tables = container_of(dbe, struct tables, dbe); 1248 char sbuild_id[SBUILD_ID_SIZE]; 1249 PyObject *t; 1250 1251 build_id__sprintf(dso__bid(dso), sbuild_id); 1252 1253 t = tuple_new(5); 1254 1255 tuple_set_d64(t, 0, dso__db_id(dso)); 1256 tuple_set_d64(t, 1, machine->db_id); 1257 tuple_set_string(t, 2, dso__short_name(dso)); 1258 tuple_set_string(t, 3, dso__long_name(dso)); 1259 tuple_set_string(t, 4, sbuild_id); 1260 1261 call_object(tables->dso_handler, t, "dso_table"); 1262 1263 Py_DECREF(t); 1264 1265 return 0; 1266 } 1267 1268 static int python_export_symbol(struct db_export *dbe, struct symbol *sym, 1269 struct dso *dso) 1270 { 1271 struct tables *tables = container_of(dbe, struct tables, dbe); 1272 u64 *sym_db_id = symbol__priv(sym); 1273 PyObject *t; 1274 1275 t = tuple_new(6); 1276 1277 tuple_set_d64(t, 0, *sym_db_id); 1278 tuple_set_d64(t, 1, dso__db_id(dso)); 1279 tuple_set_d64(t, 2, sym->start); 1280 tuple_set_d64(t, 3, sym->end); 1281 tuple_set_s32(t, 4, sym->binding); 1282 tuple_set_string(t, 5, sym->name); 1283 1284 call_object(tables->symbol_handler, t, "symbol_table"); 1285 1286 Py_DECREF(t); 1287 1288 return 0; 1289 } 1290 1291 static int python_export_branch_type(struct db_export *dbe, u32 branch_type, 1292 const char *name) 1293 { 1294 struct tables *tables = container_of(dbe, struct tables, dbe); 1295 PyObject *t; 1296 1297 t = tuple_new(2); 1298 1299 tuple_set_s32(t, 0, branch_type); 1300 tuple_set_string(t, 1, name); 1301 1302 call_object(tables->branch_type_handler, t, "branch_type_table"); 1303 1304 Py_DECREF(t); 1305 1306 return 0; 1307 } 1308 1309 static void python_export_sample_table(struct db_export *dbe, 1310 struct export_sample *es) 1311 { 1312 struct tables *tables = container_of(dbe, struct tables, dbe); 1313 PyObject *t; 1314 1315 t = tuple_new(27); 1316 1317 tuple_set_d64(t, 0, es->db_id); 1318 tuple_set_d64(t, 1, es->evsel->db_id); 1319 tuple_set_d64(t, 2, maps__machine(es->al->maps)->db_id); 1320 tuple_set_d64(t, 3, thread__db_id(es->al->thread)); 1321 tuple_set_d64(t, 4, es->comm_db_id); 1322 tuple_set_d64(t, 5, es->dso_db_id); 1323 tuple_set_d64(t, 6, es->sym_db_id); 1324 tuple_set_d64(t, 7, es->offset); 1325 tuple_set_d64(t, 8, es->sample->ip); 1326 tuple_set_d64(t, 9, es->sample->time); 1327 tuple_set_s32(t, 10, es->sample->cpu); 1328 tuple_set_d64(t, 11, es->addr_dso_db_id); 1329 tuple_set_d64(t, 12, es->addr_sym_db_id); 1330 tuple_set_d64(t, 13, es->addr_offset); 1331 tuple_set_d64(t, 14, es->sample->addr); 1332 tuple_set_d64(t, 15, es->sample->period); 1333 tuple_set_d64(t, 16, es->sample->weight); 1334 tuple_set_d64(t, 17, es->sample->transaction); 1335 tuple_set_d64(t, 18, es->sample->data_src); 1336 tuple_set_s32(t, 19, es->sample->flags & PERF_BRANCH_MASK); 1337 tuple_set_s32(t, 20, !!(es->sample->flags & PERF_IP_FLAG_IN_TX)); 1338 tuple_set_d64(t, 21, es->call_path_id); 1339 tuple_set_d64(t, 22, es->sample->insn_cnt); 1340 tuple_set_d64(t, 23, es->sample->cyc_cnt); 1341 tuple_set_s32(t, 24, es->sample->flags); 1342 tuple_set_d64(t, 25, es->sample->id); 1343 tuple_set_d64(t, 26, es->sample->stream_id); 1344 1345 call_object(tables->sample_handler, t, "sample_table"); 1346 1347 Py_DECREF(t); 1348 } 1349 1350 static void python_export_synth(struct db_export *dbe, struct export_sample *es) 1351 { 1352 struct tables *tables = container_of(dbe, struct tables, dbe); 1353 PyObject *t; 1354 1355 t = tuple_new(3); 1356 1357 tuple_set_d64(t, 0, es->db_id); 1358 tuple_set_d64(t, 1, es->evsel->core.attr.config); 1359 tuple_set_bytes(t, 2, es->sample->raw_data, es->sample->raw_size); 1360 1361 call_object(tables->synth_handler, t, "synth_data"); 1362 1363 Py_DECREF(t); 1364 } 1365 1366 static int python_export_sample(struct db_export *dbe, 1367 struct export_sample *es) 1368 { 1369 struct tables *tables = container_of(dbe, struct tables, dbe); 1370 1371 python_export_sample_table(dbe, es); 1372 1373 if (es->evsel->core.attr.type == PERF_TYPE_SYNTH && tables->synth_handler) 1374 python_export_synth(dbe, es); 1375 1376 return 0; 1377 } 1378 1379 static int python_export_call_path(struct db_export *dbe, struct call_path *cp) 1380 { 1381 struct tables *tables = container_of(dbe, struct tables, dbe); 1382 PyObject *t; 1383 u64 parent_db_id, sym_db_id; 1384 1385 parent_db_id = cp->parent ? cp->parent->db_id : 0; 1386 sym_db_id = cp->sym ? *(u64 *)symbol__priv(cp->sym) : 0; 1387 1388 t = tuple_new(4); 1389 1390 tuple_set_d64(t, 0, cp->db_id); 1391 tuple_set_d64(t, 1, parent_db_id); 1392 tuple_set_d64(t, 2, sym_db_id); 1393 tuple_set_d64(t, 3, cp->ip); 1394 1395 call_object(tables->call_path_handler, t, "call_path_table"); 1396 1397 Py_DECREF(t); 1398 1399 return 0; 1400 } 1401 1402 static int python_export_call_return(struct db_export *dbe, 1403 struct call_return *cr) 1404 { 1405 struct tables *tables = container_of(dbe, struct tables, dbe); 1406 u64 comm_db_id = cr->comm ? cr->comm->db_id : 0; 1407 PyObject *t; 1408 1409 t = tuple_new(14); 1410 1411 tuple_set_d64(t, 0, cr->db_id); 1412 tuple_set_d64(t, 1, thread__db_id(cr->thread)); 1413 tuple_set_d64(t, 2, comm_db_id); 1414 tuple_set_d64(t, 3, cr->cp->db_id); 1415 tuple_set_d64(t, 4, cr->call_time); 1416 tuple_set_d64(t, 5, cr->return_time); 1417 tuple_set_d64(t, 6, cr->branch_count); 1418 tuple_set_d64(t, 7, cr->call_ref); 1419 tuple_set_d64(t, 8, cr->return_ref); 1420 tuple_set_d64(t, 9, cr->cp->parent->db_id); 1421 tuple_set_s32(t, 10, cr->flags); 1422 tuple_set_d64(t, 11, cr->parent_db_id); 1423 tuple_set_d64(t, 12, cr->insn_count); 1424 tuple_set_d64(t, 13, cr->cyc_count); 1425 1426 call_object(tables->call_return_handler, t, "call_return_table"); 1427 1428 Py_DECREF(t); 1429 1430 return 0; 1431 } 1432 1433 static int python_export_context_switch(struct db_export *dbe, u64 db_id, 1434 struct machine *machine, 1435 struct perf_sample *sample, 1436 u64 th_out_id, u64 comm_out_id, 1437 u64 th_in_id, u64 comm_in_id, int flags) 1438 { 1439 struct tables *tables = container_of(dbe, struct tables, dbe); 1440 PyObject *t; 1441 1442 t = tuple_new(9); 1443 1444 tuple_set_d64(t, 0, db_id); 1445 tuple_set_d64(t, 1, machine->db_id); 1446 tuple_set_d64(t, 2, sample->time); 1447 tuple_set_s32(t, 3, sample->cpu); 1448 tuple_set_d64(t, 4, th_out_id); 1449 tuple_set_d64(t, 5, comm_out_id); 1450 tuple_set_d64(t, 6, th_in_id); 1451 tuple_set_d64(t, 7, comm_in_id); 1452 tuple_set_s32(t, 8, flags); 1453 1454 call_object(tables->context_switch_handler, t, "context_switch"); 1455 1456 Py_DECREF(t); 1457 1458 return 0; 1459 } 1460 1461 static int python_process_call_return(struct call_return *cr, u64 *parent_db_id, 1462 void *data) 1463 { 1464 struct db_export *dbe = data; 1465 1466 return db_export__call_return(dbe, cr, parent_db_id); 1467 } 1468 1469 static void python_process_general_event(struct perf_sample *sample, 1470 struct evsel *evsel, 1471 struct addr_location *al, 1472 struct addr_location *addr_al) 1473 { 1474 PyObject *handler, *t, *dict, *callchain; 1475 static char handler_name[64]; 1476 unsigned n = 0; 1477 1478 snprintf(handler_name, sizeof(handler_name), "%s", "process_event"); 1479 1480 handler = get_handler(handler_name); 1481 if (!handler) 1482 return; 1483 1484 /* 1485 * Use the MAX_FIELDS to make the function expandable, though 1486 * currently there is only one item for the tuple. 1487 */ 1488 t = PyTuple_New(MAX_FIELDS); 1489 if (!t) 1490 Py_FatalError("couldn't create Python tuple"); 1491 1492 /* ip unwinding */ 1493 callchain = python_process_callchain(sample, evsel, al); 1494 dict = get_perf_sample_dict(sample, evsel, al, addr_al, callchain); 1495 1496 PyTuple_SetItem(t, n++, dict); 1497 if (_PyTuple_Resize(&t, n) == -1) 1498 Py_FatalError("error resizing Python tuple"); 1499 1500 call_object(handler, t, handler_name); 1501 1502 Py_DECREF(t); 1503 } 1504 1505 static void python_process_event(union perf_event *event, 1506 struct perf_sample *sample, 1507 struct evsel *evsel, 1508 struct addr_location *al, 1509 struct addr_location *addr_al) 1510 { 1511 struct tables *tables = &tables_global; 1512 1513 scripting_context__update(scripting_context, event, sample, evsel, al, addr_al); 1514 1515 switch (evsel->core.attr.type) { 1516 case PERF_TYPE_TRACEPOINT: 1517 python_process_tracepoint(sample, evsel, al, addr_al); 1518 break; 1519 /* Reserve for future process_hw/sw/raw APIs */ 1520 default: 1521 if (tables->db_export_mode) 1522 db_export__sample(&tables->dbe, event, sample, evsel, al, addr_al); 1523 else 1524 python_process_general_event(sample, evsel, al, addr_al); 1525 } 1526 } 1527 1528 static void python_process_throttle(union perf_event *event, 1529 struct perf_sample *sample, 1530 struct machine *machine) 1531 { 1532 const char *handler_name; 1533 PyObject *handler, *t; 1534 1535 if (event->header.type == PERF_RECORD_THROTTLE) 1536 handler_name = "throttle"; 1537 else 1538 handler_name = "unthrottle"; 1539 handler = get_handler(handler_name); 1540 if (!handler) 1541 return; 1542 1543 t = tuple_new(6); 1544 if (!t) 1545 return; 1546 1547 tuple_set_u64(t, 0, event->throttle.time); 1548 tuple_set_u64(t, 1, event->throttle.id); 1549 tuple_set_u64(t, 2, event->throttle.stream_id); 1550 tuple_set_s32(t, 3, sample->cpu); 1551 tuple_set_s32(t, 4, sample->pid); 1552 tuple_set_s32(t, 5, sample->tid); 1553 1554 call_object(handler, t, handler_name); 1555 1556 Py_DECREF(t); 1557 } 1558 1559 static void python_do_process_switch(union perf_event *event, 1560 struct perf_sample *sample, 1561 struct machine *machine) 1562 { 1563 const char *handler_name = "context_switch"; 1564 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; 1565 bool out_preempt = out && (event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT); 1566 pid_t np_pid = -1, np_tid = -1; 1567 PyObject *handler, *t; 1568 1569 handler = get_handler(handler_name); 1570 if (!handler) 1571 return; 1572 1573 if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) { 1574 np_pid = event->context_switch.next_prev_pid; 1575 np_tid = event->context_switch.next_prev_tid; 1576 } 1577 1578 t = tuple_new(11); 1579 if (!t) 1580 return; 1581 1582 tuple_set_u64(t, 0, sample->time); 1583 tuple_set_s32(t, 1, sample->cpu); 1584 tuple_set_s32(t, 2, sample->pid); 1585 tuple_set_s32(t, 3, sample->tid); 1586 tuple_set_s32(t, 4, np_pid); 1587 tuple_set_s32(t, 5, np_tid); 1588 tuple_set_s32(t, 6, machine->pid); 1589 tuple_set_bool(t, 7, out); 1590 tuple_set_bool(t, 8, out_preempt); 1591 tuple_set_s32(t, 9, sample->machine_pid); 1592 tuple_set_s32(t, 10, sample->vcpu); 1593 1594 call_object(handler, t, handler_name); 1595 1596 Py_DECREF(t); 1597 } 1598 1599 static void python_process_switch(union perf_event *event, 1600 struct perf_sample *sample, 1601 struct machine *machine) 1602 { 1603 struct tables *tables = &tables_global; 1604 1605 if (tables->db_export_mode) 1606 db_export__switch(&tables->dbe, event, sample, machine); 1607 else 1608 python_do_process_switch(event, sample, machine); 1609 } 1610 1611 static void python_process_auxtrace_error(struct perf_session *session __maybe_unused, 1612 union perf_event *event) 1613 { 1614 struct perf_record_auxtrace_error *e = &event->auxtrace_error; 1615 u8 cpumode = e->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 1616 const char *handler_name = "auxtrace_error"; 1617 unsigned long long tm = e->time; 1618 const char *msg = e->msg; 1619 PyObject *handler, *t; 1620 1621 handler = get_handler(handler_name); 1622 if (!handler) 1623 return; 1624 1625 if (!e->fmt) { 1626 tm = 0; 1627 msg = (const char *)&e->time; 1628 } 1629 1630 t = tuple_new(11); 1631 1632 tuple_set_u32(t, 0, e->type); 1633 tuple_set_u32(t, 1, e->code); 1634 tuple_set_s32(t, 2, e->cpu); 1635 tuple_set_s32(t, 3, e->pid); 1636 tuple_set_s32(t, 4, e->tid); 1637 tuple_set_u64(t, 5, e->ip); 1638 tuple_set_u64(t, 6, tm); 1639 tuple_set_string(t, 7, msg); 1640 tuple_set_u32(t, 8, cpumode); 1641 tuple_set_s32(t, 9, e->machine_pid); 1642 tuple_set_s32(t, 10, e->vcpu); 1643 1644 call_object(handler, t, handler_name); 1645 1646 Py_DECREF(t); 1647 } 1648 1649 static void get_handler_name(char *str, size_t size, 1650 struct evsel *evsel) 1651 { 1652 char *p = str; 1653 1654 scnprintf(str, size, "stat__%s", evsel__name(evsel)); 1655 1656 while ((p = strchr(p, ':'))) { 1657 *p = '_'; 1658 p++; 1659 } 1660 } 1661 1662 static void 1663 process_stat(struct evsel *counter, struct perf_cpu cpu, int thread, u64 tstamp, 1664 struct perf_counts_values *count) 1665 { 1666 PyObject *handler, *t; 1667 static char handler_name[256]; 1668 int n = 0; 1669 1670 t = PyTuple_New(MAX_FIELDS); 1671 if (!t) 1672 Py_FatalError("couldn't create Python tuple"); 1673 1674 get_handler_name(handler_name, sizeof(handler_name), 1675 counter); 1676 1677 handler = get_handler(handler_name); 1678 if (!handler) { 1679 pr_debug("can't find python handler %s\n", handler_name); 1680 return; 1681 } 1682 1683 PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu.cpu)); 1684 PyTuple_SetItem(t, n++, _PyLong_FromLong(thread)); 1685 1686 tuple_set_u64(t, n++, tstamp); 1687 tuple_set_u64(t, n++, count->val); 1688 tuple_set_u64(t, n++, count->ena); 1689 tuple_set_u64(t, n++, count->run); 1690 1691 if (_PyTuple_Resize(&t, n) == -1) 1692 Py_FatalError("error resizing Python tuple"); 1693 1694 call_object(handler, t, handler_name); 1695 1696 Py_DECREF(t); 1697 } 1698 1699 static void python_process_stat(struct perf_stat_config *config, 1700 struct evsel *counter, u64 tstamp) 1701 { 1702 struct perf_thread_map *threads = counter->core.threads; 1703 struct perf_cpu_map *cpus = counter->core.cpus; 1704 1705 for (int thread = 0; thread < perf_thread_map__nr(threads); thread++) { 1706 int idx; 1707 struct perf_cpu cpu; 1708 1709 perf_cpu_map__for_each_cpu(cpu, idx, cpus) { 1710 process_stat(counter, cpu, 1711 perf_thread_map__pid(threads, thread), tstamp, 1712 perf_counts(counter->counts, idx, thread)); 1713 } 1714 } 1715 } 1716 1717 static void python_process_stat_interval(u64 tstamp) 1718 { 1719 PyObject *handler, *t; 1720 static const char handler_name[] = "stat__interval"; 1721 int n = 0; 1722 1723 t = PyTuple_New(MAX_FIELDS); 1724 if (!t) 1725 Py_FatalError("couldn't create Python tuple"); 1726 1727 handler = get_handler(handler_name); 1728 if (!handler) { 1729 pr_debug("can't find python handler %s\n", handler_name); 1730 return; 1731 } 1732 1733 tuple_set_u64(t, n++, tstamp); 1734 1735 if (_PyTuple_Resize(&t, n) == -1) 1736 Py_FatalError("error resizing Python tuple"); 1737 1738 call_object(handler, t, handler_name); 1739 1740 Py_DECREF(t); 1741 } 1742 1743 static int perf_script_context_init(void) 1744 { 1745 PyObject *perf_script_context; 1746 PyObject *perf_trace_context; 1747 PyObject *dict; 1748 int ret; 1749 1750 perf_trace_context = PyImport_AddModule("perf_trace_context"); 1751 if (!perf_trace_context) 1752 return -1; 1753 dict = PyModule_GetDict(perf_trace_context); 1754 if (!dict) 1755 return -1; 1756 1757 perf_script_context = _PyCapsule_New(scripting_context, NULL, NULL); 1758 if (!perf_script_context) 1759 return -1; 1760 1761 ret = PyDict_SetItemString(dict, "perf_script_context", perf_script_context); 1762 if (!ret) 1763 ret = PyDict_SetItemString(main_dict, "perf_script_context", perf_script_context); 1764 Py_DECREF(perf_script_context); 1765 return ret; 1766 } 1767 1768 static int run_start_sub(void) 1769 { 1770 main_module = PyImport_AddModule("__main__"); 1771 if (main_module == NULL) 1772 return -1; 1773 Py_INCREF(main_module); 1774 1775 main_dict = PyModule_GetDict(main_module); 1776 if (main_dict == NULL) 1777 goto error; 1778 Py_INCREF(main_dict); 1779 1780 if (perf_script_context_init()) 1781 goto error; 1782 1783 try_call_object("trace_begin", NULL); 1784 1785 return 0; 1786 1787 error: 1788 Py_XDECREF(main_dict); 1789 Py_XDECREF(main_module); 1790 return -1; 1791 } 1792 1793 #define SET_TABLE_HANDLER_(name, handler_name, table_name) do { \ 1794 tables->handler_name = get_handler(#table_name); \ 1795 if (tables->handler_name) \ 1796 tables->dbe.export_ ## name = python_export_ ## name; \ 1797 } while (0) 1798 1799 #define SET_TABLE_HANDLER(name) \ 1800 SET_TABLE_HANDLER_(name, name ## _handler, name ## _table) 1801 1802 static void set_table_handlers(struct tables *tables) 1803 { 1804 const char *perf_db_export_mode = "perf_db_export_mode"; 1805 const char *perf_db_export_calls = "perf_db_export_calls"; 1806 const char *perf_db_export_callchains = "perf_db_export_callchains"; 1807 PyObject *db_export_mode, *db_export_calls, *db_export_callchains; 1808 bool export_calls = false; 1809 bool export_callchains = false; 1810 int ret; 1811 1812 memset(tables, 0, sizeof(struct tables)); 1813 if (db_export__init(&tables->dbe)) 1814 Py_FatalError("failed to initialize export"); 1815 1816 db_export_mode = PyDict_GetItemString(main_dict, perf_db_export_mode); 1817 if (!db_export_mode) 1818 return; 1819 1820 ret = PyObject_IsTrue(db_export_mode); 1821 if (ret == -1) 1822 handler_call_die(perf_db_export_mode); 1823 if (!ret) 1824 return; 1825 1826 /* handle export calls */ 1827 tables->dbe.crp = NULL; 1828 db_export_calls = PyDict_GetItemString(main_dict, perf_db_export_calls); 1829 if (db_export_calls) { 1830 ret = PyObject_IsTrue(db_export_calls); 1831 if (ret == -1) 1832 handler_call_die(perf_db_export_calls); 1833 export_calls = !!ret; 1834 } 1835 1836 if (export_calls) { 1837 tables->dbe.crp = 1838 call_return_processor__new(python_process_call_return, 1839 &tables->dbe); 1840 if (!tables->dbe.crp) 1841 Py_FatalError("failed to create calls processor"); 1842 } 1843 1844 /* handle export callchains */ 1845 tables->dbe.cpr = NULL; 1846 db_export_callchains = PyDict_GetItemString(main_dict, 1847 perf_db_export_callchains); 1848 if (db_export_callchains) { 1849 ret = PyObject_IsTrue(db_export_callchains); 1850 if (ret == -1) 1851 handler_call_die(perf_db_export_callchains); 1852 export_callchains = !!ret; 1853 } 1854 1855 if (export_callchains) { 1856 /* 1857 * Attempt to use the call path root from the call return 1858 * processor, if the call return processor is in use. Otherwise, 1859 * we allocate a new call path root. This prevents exporting 1860 * duplicate call path ids when both are in use simultaneously. 1861 */ 1862 if (tables->dbe.crp) 1863 tables->dbe.cpr = tables->dbe.crp->cpr; 1864 else 1865 tables->dbe.cpr = call_path_root__new(); 1866 1867 if (!tables->dbe.cpr) 1868 Py_FatalError("failed to create call path root"); 1869 } 1870 1871 tables->db_export_mode = true; 1872 /* 1873 * Reserve per symbol space for symbol->db_id via symbol__priv() 1874 */ 1875 symbol_conf.priv_size = sizeof(u64); 1876 1877 SET_TABLE_HANDLER(evsel); 1878 SET_TABLE_HANDLER(machine); 1879 SET_TABLE_HANDLER(thread); 1880 SET_TABLE_HANDLER(comm); 1881 SET_TABLE_HANDLER(comm_thread); 1882 SET_TABLE_HANDLER(dso); 1883 SET_TABLE_HANDLER(symbol); 1884 SET_TABLE_HANDLER(branch_type); 1885 SET_TABLE_HANDLER(sample); 1886 SET_TABLE_HANDLER(call_path); 1887 SET_TABLE_HANDLER(call_return); 1888 SET_TABLE_HANDLER(context_switch); 1889 1890 /* 1891 * Synthesized events are samples but with architecture-specific data 1892 * stored in sample->raw_data. They are exported via 1893 * python_export_sample() and consequently do not need a separate export 1894 * callback. 1895 */ 1896 tables->synth_handler = get_handler("synth_data"); 1897 } 1898 1899 #if PY_MAJOR_VERSION < 3 1900 static void _free_command_line(const char **command_line, int num) 1901 { 1902 free(command_line); 1903 } 1904 #else 1905 static void _free_command_line(wchar_t **command_line, int num) 1906 { 1907 int i; 1908 for (i = 0; i < num; i++) 1909 PyMem_RawFree(command_line[i]); 1910 free(command_line); 1911 } 1912 #endif 1913 1914 1915 /* 1916 * Start trace script 1917 */ 1918 static int python_start_script(const char *script, int argc, const char **argv, 1919 struct perf_session *session) 1920 { 1921 struct tables *tables = &tables_global; 1922 #if PY_MAJOR_VERSION < 3 1923 const char **command_line; 1924 #else 1925 wchar_t **command_line; 1926 #endif 1927 /* 1928 * Use a non-const name variable to cope with python 2.6's 1929 * PyImport_AppendInittab prototype 1930 */ 1931 char buf[PATH_MAX], name[19] = "perf_trace_context"; 1932 int i, err = 0; 1933 FILE *fp; 1934 1935 scripting_context->session = session; 1936 #if PY_MAJOR_VERSION < 3 1937 command_line = malloc((argc + 1) * sizeof(const char *)); 1938 if (!command_line) 1939 return -1; 1940 1941 command_line[0] = script; 1942 for (i = 1; i < argc + 1; i++) 1943 command_line[i] = argv[i - 1]; 1944 PyImport_AppendInittab(name, initperf_trace_context); 1945 #else 1946 command_line = malloc((argc + 1) * sizeof(wchar_t *)); 1947 if (!command_line) 1948 return -1; 1949 1950 command_line[0] = Py_DecodeLocale(script, NULL); 1951 for (i = 1; i < argc + 1; i++) 1952 command_line[i] = Py_DecodeLocale(argv[i - 1], NULL); 1953 PyImport_AppendInittab(name, PyInit_perf_trace_context); 1954 #endif 1955 Py_Initialize(); 1956 1957 #if PY_MAJOR_VERSION < 3 1958 PySys_SetArgv(argc + 1, (char **)command_line); 1959 #else 1960 PySys_SetArgv(argc + 1, command_line); 1961 #endif 1962 1963 fp = fopen(script, "r"); 1964 if (!fp) { 1965 sprintf(buf, "Can't open python script \"%s\"", script); 1966 perror(buf); 1967 err = -1; 1968 goto error; 1969 } 1970 1971 err = PyRun_SimpleFile(fp, script); 1972 if (err) { 1973 fprintf(stderr, "Error running python script %s\n", script); 1974 goto error; 1975 } 1976 1977 err = run_start_sub(); 1978 if (err) { 1979 fprintf(stderr, "Error starting python script %s\n", script); 1980 goto error; 1981 } 1982 1983 set_table_handlers(tables); 1984 1985 if (tables->db_export_mode) { 1986 err = db_export__branch_types(&tables->dbe); 1987 if (err) 1988 goto error; 1989 } 1990 1991 _free_command_line(command_line, argc + 1); 1992 1993 return err; 1994 error: 1995 Py_Finalize(); 1996 _free_command_line(command_line, argc + 1); 1997 1998 return err; 1999 } 2000 2001 static int python_flush_script(void) 2002 { 2003 return 0; 2004 } 2005 2006 /* 2007 * Stop trace script 2008 */ 2009 static int python_stop_script(void) 2010 { 2011 struct tables *tables = &tables_global; 2012 2013 try_call_object("trace_end", NULL); 2014 2015 db_export__exit(&tables->dbe); 2016 2017 Py_XDECREF(main_dict); 2018 Py_XDECREF(main_module); 2019 Py_Finalize(); 2020 2021 return 0; 2022 } 2023 2024 #ifdef HAVE_LIBTRACEEVENT 2025 static int python_generate_script(struct tep_handle *pevent, const char *outfile) 2026 { 2027 int i, not_first, count, nr_events; 2028 struct tep_event **all_events; 2029 struct tep_event *event = NULL; 2030 struct tep_format_field *f; 2031 char fname[PATH_MAX]; 2032 FILE *ofp; 2033 2034 sprintf(fname, "%s.py", outfile); 2035 ofp = fopen(fname, "w"); 2036 if (ofp == NULL) { 2037 fprintf(stderr, "couldn't open %s\n", fname); 2038 return -1; 2039 } 2040 fprintf(ofp, "# perf script event handlers, " 2041 "generated by perf script -g python\n"); 2042 2043 fprintf(ofp, "# Licensed under the terms of the GNU GPL" 2044 " License version 2\n\n"); 2045 2046 fprintf(ofp, "# The common_* event handler fields are the most useful " 2047 "fields common to\n"); 2048 2049 fprintf(ofp, "# all events. They don't necessarily correspond to " 2050 "the 'common_*' fields\n"); 2051 2052 fprintf(ofp, "# in the format files. Those fields not available as " 2053 "handler params can\n"); 2054 2055 fprintf(ofp, "# be retrieved using Python functions of the form " 2056 "common_*(context).\n"); 2057 2058 fprintf(ofp, "# See the perf-script-python Documentation for the list " 2059 "of available functions.\n\n"); 2060 2061 fprintf(ofp, "from __future__ import print_function\n\n"); 2062 fprintf(ofp, "import os\n"); 2063 fprintf(ofp, "import sys\n\n"); 2064 2065 fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n"); 2066 fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n"); 2067 fprintf(ofp, "\nfrom perf_trace_context import *\n"); 2068 fprintf(ofp, "from Core import *\n\n\n"); 2069 2070 fprintf(ofp, "def trace_begin():\n"); 2071 fprintf(ofp, "\tprint(\"in trace_begin\")\n\n"); 2072 2073 fprintf(ofp, "def trace_end():\n"); 2074 fprintf(ofp, "\tprint(\"in trace_end\")\n\n"); 2075 2076 nr_events = tep_get_events_count(pevent); 2077 all_events = tep_list_events(pevent, TEP_EVENT_SORT_ID); 2078 2079 for (i = 0; all_events && i < nr_events; i++) { 2080 event = all_events[i]; 2081 fprintf(ofp, "def %s__%s(", event->system, event->name); 2082 fprintf(ofp, "event_name, "); 2083 fprintf(ofp, "context, "); 2084 fprintf(ofp, "common_cpu,\n"); 2085 fprintf(ofp, "\tcommon_secs, "); 2086 fprintf(ofp, "common_nsecs, "); 2087 fprintf(ofp, "common_pid, "); 2088 fprintf(ofp, "common_comm,\n\t"); 2089 fprintf(ofp, "common_callchain, "); 2090 2091 not_first = 0; 2092 count = 0; 2093 2094 for (f = event->format.fields; f; f = f->next) { 2095 if (not_first++) 2096 fprintf(ofp, ", "); 2097 if (++count % 5 == 0) 2098 fprintf(ofp, "\n\t"); 2099 2100 fprintf(ofp, "%s", f->name); 2101 } 2102 if (not_first++) 2103 fprintf(ofp, ", "); 2104 if (++count % 5 == 0) 2105 fprintf(ofp, "\n\t\t"); 2106 fprintf(ofp, "perf_sample_dict"); 2107 2108 fprintf(ofp, "):\n"); 2109 2110 fprintf(ofp, "\t\tprint_header(event_name, common_cpu, " 2111 "common_secs, common_nsecs,\n\t\t\t" 2112 "common_pid, common_comm)\n\n"); 2113 2114 fprintf(ofp, "\t\tprint(\""); 2115 2116 not_first = 0; 2117 count = 0; 2118 2119 for (f = event->format.fields; f; f = f->next) { 2120 if (not_first++) 2121 fprintf(ofp, ", "); 2122 if (count && count % 3 == 0) { 2123 fprintf(ofp, "\" \\\n\t\t\""); 2124 } 2125 count++; 2126 2127 fprintf(ofp, "%s=", f->name); 2128 if (f->flags & TEP_FIELD_IS_STRING || 2129 f->flags & TEP_FIELD_IS_FLAG || 2130 f->flags & TEP_FIELD_IS_ARRAY || 2131 f->flags & TEP_FIELD_IS_SYMBOLIC) 2132 fprintf(ofp, "%%s"); 2133 else if (f->flags & TEP_FIELD_IS_SIGNED) 2134 fprintf(ofp, "%%d"); 2135 else 2136 fprintf(ofp, "%%u"); 2137 } 2138 2139 fprintf(ofp, "\" %% \\\n\t\t("); 2140 2141 not_first = 0; 2142 count = 0; 2143 2144 for (f = event->format.fields; f; f = f->next) { 2145 if (not_first++) 2146 fprintf(ofp, ", "); 2147 2148 if (++count % 5 == 0) 2149 fprintf(ofp, "\n\t\t"); 2150 2151 if (f->flags & TEP_FIELD_IS_FLAG) { 2152 if ((count - 1) % 5 != 0) { 2153 fprintf(ofp, "\n\t\t"); 2154 count = 4; 2155 } 2156 fprintf(ofp, "flag_str(\""); 2157 fprintf(ofp, "%s__%s\", ", event->system, 2158 event->name); 2159 fprintf(ofp, "\"%s\", %s)", f->name, 2160 f->name); 2161 } else if (f->flags & TEP_FIELD_IS_SYMBOLIC) { 2162 if ((count - 1) % 5 != 0) { 2163 fprintf(ofp, "\n\t\t"); 2164 count = 4; 2165 } 2166 fprintf(ofp, "symbol_str(\""); 2167 fprintf(ofp, "%s__%s\", ", event->system, 2168 event->name); 2169 fprintf(ofp, "\"%s\", %s)", f->name, 2170 f->name); 2171 } else 2172 fprintf(ofp, "%s", f->name); 2173 } 2174 2175 fprintf(ofp, "))\n\n"); 2176 2177 fprintf(ofp, "\t\tprint('Sample: {'+" 2178 "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n"); 2179 2180 fprintf(ofp, "\t\tfor node in common_callchain:"); 2181 fprintf(ofp, "\n\t\t\tif 'sym' in node:"); 2182 fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x] %%s%%s%%s%%s\" %% ("); 2183 fprintf(ofp, "\n\t\t\t\t\tnode['ip'], node['sym']['name'],"); 2184 fprintf(ofp, "\n\t\t\t\t\t\"+0x{:x}\".format(node['sym_off']) if 'sym_off' in node else \"\","); 2185 fprintf(ofp, "\n\t\t\t\t\t\" ({})\".format(node['dso']) if 'dso' in node else \"\","); 2186 fprintf(ofp, "\n\t\t\t\t\t\" \" + node['sym_srcline'] if 'sym_srcline' in node else \"\"))"); 2187 fprintf(ofp, "\n\t\t\telse:"); 2188 fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x]\" %% (node['ip']))\n\n"); 2189 fprintf(ofp, "\t\tprint()\n\n"); 2190 2191 } 2192 2193 fprintf(ofp, "def trace_unhandled(event_name, context, " 2194 "event_fields_dict, perf_sample_dict):\n"); 2195 2196 fprintf(ofp, "\t\tprint(get_dict_as_string(event_fields_dict))\n"); 2197 fprintf(ofp, "\t\tprint('Sample: {'+" 2198 "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n"); 2199 2200 fprintf(ofp, "def print_header(" 2201 "event_name, cpu, secs, nsecs, pid, comm):\n" 2202 "\tprint(\"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t" 2203 "(event_name, cpu, secs, nsecs, pid, comm), end=\"\")\n\n"); 2204 2205 fprintf(ofp, "def get_dict_as_string(a_dict, delimiter=' '):\n" 2206 "\treturn delimiter.join" 2207 "(['%%s=%%s'%%(k,str(v))for k,v in sorted(a_dict.items())])\n"); 2208 2209 fclose(ofp); 2210 2211 fprintf(stderr, "generated Python script: %s\n", fname); 2212 2213 return 0; 2214 } 2215 #else 2216 static int python_generate_script(struct tep_handle *pevent __maybe_unused, 2217 const char *outfile __maybe_unused) 2218 { 2219 fprintf(stderr, "Generating Python perf-script is not supported." 2220 " Install libtraceevent and rebuild perf to enable it.\n" 2221 "For example:\n # apt install libtraceevent-dev (ubuntu)" 2222 "\n # yum install libtraceevent-devel (Fedora)" 2223 "\n etc.\n"); 2224 return -1; 2225 } 2226 #endif 2227 2228 struct scripting_ops python_scripting_ops = { 2229 .name = "Python", 2230 .dirname = "python", 2231 .start_script = python_start_script, 2232 .flush_script = python_flush_script, 2233 .stop_script = python_stop_script, 2234 .process_event = python_process_event, 2235 .process_switch = python_process_switch, 2236 .process_auxtrace_error = python_process_auxtrace_error, 2237 .process_stat = python_process_stat, 2238 .process_stat_interval = python_process_stat_interval, 2239 .process_throttle = python_process_throttle, 2240 .generate_script = python_generate_script, 2241 }; 2242