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