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