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