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