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