1/* 2 * trace-event-python. Feed trace events to an embedded Python interpreter. 3 * 4 * Copyright (C) 2010 Tom Zanussi <tzanussi@gmail.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 * 20 */ 21 22#include <Python.h> 23 24#include <inttypes.h> 25#include <stdio.h> 26#include <stdlib.h> 27#include <string.h> 28#include <stdbool.h> 29#include <errno.h> 30#include <linux/bitmap.h> 31#include <linux/compiler.h> 32#include <linux/time64.h> 33#ifdef HAVE_LIBTRACEEVENT 34#include <traceevent/event-parse.h> 35#endif 36 37#include "../build-id.h" 38#include "../counts.h" 39#include "../debug.h" 40#include "../dso.h" 41#include "../callchain.h" 42#include "../env.h" 43#include "../evsel.h" 44#include "../event.h" 45#include "../thread.h" 46#include "../comm.h" 47#include "../machine.h" 48#include "../db-export.h" 49#include "../thread-stack.h" 50#include "../trace-event.h" 51#include "../call-path.h" 52#include "map.h" 53#include "symbol.h" 54#include "thread_map.h" 55#include "print_binary.h" 56#include "stat.h" 57#include "mem-events.h" 58#include "util/perf_regs.h" 59 60#if PY_MAJOR_VERSION < 3 61#define _PyUnicode_FromString(arg) \ 62 PyString_FromString(arg) 63#define _PyUnicode_FromStringAndSize(arg1, arg2) \ 64 PyString_FromStringAndSize((arg1), (arg2)) 65#define _PyBytes_FromStringAndSize(arg1, arg2) \ 66 PyString_FromStringAndSize((arg1), (arg2)) 67#define _PyLong_FromLong(arg) \ 68 PyInt_FromLong(arg) 69#define _PyLong_AsLong(arg) \ 70 PyInt_AsLong(arg) 71#define _PyCapsule_New(arg1, arg2, arg3) \ 72 PyCObject_FromVoidPtr((arg1), (arg2)) 73 74PyMODINIT_FUNC initperf_trace_context(void); 75#else 76#define _PyUnicode_FromString(arg) \ 77 PyUnicode_FromString(arg) 78#define _PyUnicode_FromStringAndSize(arg1, arg2) \ 79 PyUnicode_FromStringAndSize((arg1), (arg2)) 80#define _PyBytes_FromStringAndSize(arg1, arg2) \ 81 PyBytes_FromStringAndSize((arg1), (arg2)) 82#define _PyLong_FromLong(arg) \ 83 PyLong_FromLong(arg) 84#define _PyLong_AsLong(arg) \ 85 PyLong_AsLong(arg) 86#define _PyCapsule_New(arg1, arg2, arg3) \ 87 PyCapsule_New((arg1), (arg2), (arg3)) 88 89PyMODINIT_FUNC PyInit_perf_trace_context(void); 90#endif 91 92#ifdef HAVE_LIBTRACEEVENT 93#define TRACE_EVENT_TYPE_MAX \ 94 ((1 << (sizeof(unsigned short) * 8)) - 1) 95 96#define N_COMMON_FIELDS 7 97 98static char *cur_field_name; 99static int zero_flag_atom; 100#endif 101 102#define MAX_FIELDS 64 103 104extern struct scripting_context *scripting_context; 105 106static PyObject *main_module, *main_dict; 107 108struct tables { 109 struct db_export dbe; 110 PyObject *evsel_handler; 111 PyObject *machine_handler; 112 PyObject *thread_handler; 113 PyObject *comm_handler; 114 PyObject *comm_thread_handler; 115 PyObject *dso_handler; 116 PyObject *symbol_handler; 117 PyObject *branch_type_handler; 118 PyObject *sample_handler; 119 PyObject *call_path_handler; 120 PyObject *call_return_handler; 121 PyObject *synth_handler; 122 PyObject *context_switch_handler; 123 bool db_export_mode; 124}; 125 126static struct tables tables_global; 127 128static void handler_call_die(const char *handler_name) __noreturn; 129static void handler_call_die(const char *handler_name) 130{ 131 PyErr_Print(); 132 Py_FatalError("problem in Python trace event handler"); 133 // Py_FatalError does not return 134 // but we have to make the compiler happy 135 abort(); 136} 137 138/* 139 * Insert val into the dictionary and decrement the reference counter. 140 * This is necessary for dictionaries since PyDict_SetItemString() does not 141 * steal a reference, as opposed to PyTuple_SetItem(). 142 */ 143static void pydict_set_item_string_decref(PyObject *dict, const char *key, PyObject *val) 144{ 145 PyDict_SetItemString(dict, key, val); 146 Py_DECREF(val); 147} 148 149static PyObject *get_handler(const char *handler_name) 150{ 151 PyObject *handler; 152 153 handler = PyDict_GetItemString(main_dict, handler_name); 154 if (handler && !PyCallable_Check(handler)) 155 return NULL; 156 return handler; 157} 158 159static void call_object(PyObject *handler, PyObject *args, const char *die_msg) 160{ 161 PyObject *retval; 162 163 retval = PyObject_CallObject(handler, args); 164 if (retval == NULL) 165 handler_call_die(die_msg); 166 Py_DECREF(retval); 167} 168 169static void try_call_object(const char *handler_name, PyObject *args) 170{ 171 PyObject *handler; 172 173 handler = get_handler(handler_name); 174 if (handler) 175 call_object(handler, args, handler_name); 176} 177 178#ifdef HAVE_LIBTRACEEVENT 179static int get_argument_count(PyObject *handler) 180{ 181 int arg_count = 0; 182 183 /* 184 * The attribute for the code object is func_code in Python 2, 185 * whereas it is __code__ in Python 3.0+. 186 */ 187 PyObject *code_obj = PyObject_GetAttrString(handler, 188 "func_code"); 189 if (PyErr_Occurred()) { 190 PyErr_Clear(); 191 code_obj = PyObject_GetAttrString(handler, 192 "__code__"); 193 } 194 PyErr_Clear(); 195 if (code_obj) { 196 PyObject *arg_count_obj = PyObject_GetAttrString(code_obj, 197 "co_argcount"); 198 if (arg_count_obj) { 199 arg_count = (int) _PyLong_AsLong(arg_count_obj); 200 Py_DECREF(arg_count_obj); 201 } 202 Py_DECREF(code_obj); 203 } 204 return arg_count; 205} 206 207static void define_value(enum tep_print_arg_type field_type, 208 const char *ev_name, 209 const char *field_name, 210 const char *field_value, 211 const char *field_str) 212{ 213 const char *handler_name = "define_flag_value"; 214 PyObject *t; 215 unsigned long long value; 216 unsigned n = 0; 217 218 if (field_type == TEP_PRINT_SYMBOL) 219 handler_name = "define_symbolic_value"; 220 221 t = PyTuple_New(4); 222 if (!t) 223 Py_FatalError("couldn't create Python tuple"); 224 225 value = eval_flag(field_value); 226 227 PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name)); 228 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name)); 229 PyTuple_SetItem(t, n++, _PyLong_FromLong(value)); 230 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_str)); 231 232 try_call_object(handler_name, t); 233 234 Py_DECREF(t); 235} 236 237static void define_values(enum tep_print_arg_type field_type, 238 struct tep_print_flag_sym *field, 239 const char *ev_name, 240 const char *field_name) 241{ 242 define_value(field_type, ev_name, field_name, field->value, 243 field->str); 244 245 if (field->next) 246 define_values(field_type, field->next, ev_name, field_name); 247} 248 249static void define_field(enum tep_print_arg_type field_type, 250 const char *ev_name, 251 const char *field_name, 252 const char *delim) 253{ 254 const char *handler_name = "define_flag_field"; 255 PyObject *t; 256 unsigned n = 0; 257 258 if (field_type == TEP_PRINT_SYMBOL) 259 handler_name = "define_symbolic_field"; 260 261 if (field_type == TEP_PRINT_FLAGS) 262 t = PyTuple_New(3); 263 else 264 t = PyTuple_New(2); 265 if (!t) 266 Py_FatalError("couldn't create Python tuple"); 267 268 PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name)); 269 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name)); 270 if (field_type == TEP_PRINT_FLAGS) 271 PyTuple_SetItem(t, n++, _PyUnicode_FromString(delim)); 272 273 try_call_object(handler_name, t); 274 275 Py_DECREF(t); 276} 277 278static void define_event_symbols(struct tep_event *event, 279 const char *ev_name, 280 struct tep_print_arg *args) 281{ 282 if (args == NULL) 283 return; 284 285 switch (args->type) { 286 case TEP_PRINT_NULL: 287 break; 288 case TEP_PRINT_ATOM: 289 define_value(TEP_PRINT_FLAGS, ev_name, cur_field_name, "0", 290 args->atom.atom); 291 zero_flag_atom = 0; 292 break; 293 case TEP_PRINT_FIELD: 294 free(cur_field_name); 295 cur_field_name = strdup(args->field.name); 296 break; 297 case TEP_PRINT_FLAGS: 298 define_event_symbols(event, ev_name, args->flags.field); 299 define_field(TEP_PRINT_FLAGS, ev_name, cur_field_name, 300 args->flags.delim); 301 define_values(TEP_PRINT_FLAGS, args->flags.flags, ev_name, 302 cur_field_name); 303 break; 304 case TEP_PRINT_SYMBOL: 305 define_event_symbols(event, ev_name, args->symbol.field); 306 define_field(TEP_PRINT_SYMBOL, ev_name, cur_field_name, NULL); 307 define_values(TEP_PRINT_SYMBOL, args->symbol.symbols, ev_name, 308 cur_field_name); 309 break; 310 case TEP_PRINT_HEX: 311 case TEP_PRINT_HEX_STR: 312 define_event_symbols(event, ev_name, args->hex.field); 313 define_event_symbols(event, ev_name, args->hex.size); 314 break; 315 case TEP_PRINT_INT_ARRAY: 316 define_event_symbols(event, ev_name, args->int_array.field); 317 define_event_symbols(event, ev_name, args->int_array.count); 318 define_event_symbols(event, ev_name, args->int_array.el_size); 319 break; 320 case TEP_PRINT_STRING: 321 break; 322 case TEP_PRINT_TYPE: 323 define_event_symbols(event, ev_name, args->typecast.item); 324 break; 325 case TEP_PRINT_OP: 326 if (strcmp(args->op.op, ":") == 0) 327 zero_flag_atom = 1; 328 define_event_symbols(event, ev_name, args->op.left); 329 define_event_symbols(event, ev_name, args->op.right); 330 break; 331 default: 332 /* gcc warns for these? */ 333 case TEP_PRINT_BSTRING: 334 case TEP_PRINT_DYNAMIC_ARRAY: 335 case TEP_PRINT_DYNAMIC_ARRAY_LEN: 336 case TEP_PRINT_FUNC: 337 case TEP_PRINT_BITMASK: 338 /* we should warn... */ 339 return; 340 } 341 342 if (args->next) 343 define_event_symbols(event, ev_name, args->next); 344} 345 346static PyObject *get_field_numeric_entry(struct tep_event *event, 347 struct tep_format_field *field, void *data) 348{ 349 bool is_array = field->flags & TEP_FIELD_IS_ARRAY; 350 PyObject *obj = NULL, *list = NULL; 351 unsigned long long val; 352 unsigned int item_size, n_items, i; 353 354 if (is_array) { 355 list = PyList_New(field->arraylen); 356 if (!list) 357 Py_FatalError("couldn't create Python list"); 358 item_size = field->size / field->arraylen; 359 n_items = field->arraylen; 360 } else { 361 item_size = field->size; 362 n_items = 1; 363 } 364 365 for (i = 0; i < n_items; i++) { 366 367 val = read_size(event, data + field->offset + i * item_size, 368 item_size); 369 if (field->flags & TEP_FIELD_IS_SIGNED) { 370 if ((long long)val >= LONG_MIN && 371 (long long)val <= LONG_MAX) 372 obj = _PyLong_FromLong(val); 373 else 374 obj = PyLong_FromLongLong(val); 375 } else { 376 if (val <= LONG_MAX) 377 obj = _PyLong_FromLong(val); 378 else 379 obj = PyLong_FromUnsignedLongLong(val); 380 } 381 if (is_array) 382 PyList_SET_ITEM(list, i, obj); 383 } 384 if (is_array) 385 obj = list; 386 return obj; 387} 388#endif 389 390static const char *get_dsoname(struct map *map) 391{ 392 const char *dsoname = "[unknown]"; 393 struct dso *dso = map ? map__dso(map) : NULL; 394 395 if (dso) { 396 if (symbol_conf.show_kernel_path && dso->long_name) 397 dsoname = dso->long_name; 398 else 399 dsoname = dso->name; 400 } 401 402 return dsoname; 403} 404 405static unsigned long get_offset(struct symbol *sym, struct addr_location *al) 406{ 407 unsigned long offset; 408 409 if (al->addr < sym->end) 410 offset = al->addr - sym->start; 411 else 412 offset = al->addr - map__start(al->map) - sym->start; 413 414 return offset; 415} 416 417static PyObject *python_process_callchain(struct perf_sample *sample, 418 struct evsel *evsel, 419 struct addr_location *al) 420{ 421 PyObject *pylist; 422 struct callchain_cursor *cursor; 423 424 pylist = PyList_New(0); 425 if (!pylist) 426 Py_FatalError("couldn't create Python list"); 427 428 if (!symbol_conf.use_callchain || !sample->callchain) 429 goto exit; 430 431 cursor = get_tls_callchain_cursor(); 432 if (thread__resolve_callchain(al->thread, cursor, evsel, 433 sample, NULL, NULL, 434 scripting_max_stack) != 0) { 435 pr_err("Failed to resolve callchain. Skipping\n"); 436 goto exit; 437 } 438 callchain_cursor_commit(cursor); 439 440 441 while (1) { 442 PyObject *pyelem; 443 struct callchain_cursor_node *node; 444 node = callchain_cursor_current(cursor); 445 if (!node) 446 break; 447 448 pyelem = PyDict_New(); 449 if (!pyelem) 450 Py_FatalError("couldn't create Python dictionary"); 451 452 453 pydict_set_item_string_decref(pyelem, "ip", 454 PyLong_FromUnsignedLongLong(node->ip)); 455 456 if (node->ms.sym) { 457 PyObject *pysym = PyDict_New(); 458 if (!pysym) 459 Py_FatalError("couldn't create Python dictionary"); 460 pydict_set_item_string_decref(pysym, "start", 461 PyLong_FromUnsignedLongLong(node->ms.sym->start)); 462 pydict_set_item_string_decref(pysym, "end", 463 PyLong_FromUnsignedLongLong(node->ms.sym->end)); 464 pydict_set_item_string_decref(pysym, "binding", 465 _PyLong_FromLong(node->ms.sym->binding)); 466 pydict_set_item_string_decref(pysym, "name", 467 _PyUnicode_FromStringAndSize(node->ms.sym->name, 468 node->ms.sym->namelen)); 469 pydict_set_item_string_decref(pyelem, "sym", pysym); 470 471 if (node->ms.map) { 472 struct map *map = node->ms.map; 473 struct addr_location node_al; 474 unsigned long offset; 475 476 addr_location__init(&node_al); 477 node_al.addr = map__map_ip(map, node->ip); 478 node_al.map = map__get(map); 479 offset = get_offset(node->ms.sym, &node_al); 480 addr_location__exit(&node_al); 481 482 pydict_set_item_string_decref( 483 pyelem, "sym_off", 484 PyLong_FromUnsignedLongLong(offset)); 485 } 486 if (node->srcline && strcmp(":0", node->srcline)) { 487 pydict_set_item_string_decref( 488 pyelem, "sym_srcline", 489 _PyUnicode_FromString(node->srcline)); 490 } 491 } 492 493 if (node->ms.map) { 494 const char *dsoname = get_dsoname(node->ms.map); 495 496 pydict_set_item_string_decref(pyelem, "dso", 497 _PyUnicode_FromString(dsoname)); 498 } 499 500 callchain_cursor_advance(cursor); 501 PyList_Append(pylist, pyelem); 502 Py_DECREF(pyelem); 503 } 504 505exit: 506 return pylist; 507} 508 509static PyObject *python_process_brstack(struct perf_sample *sample, 510 struct thread *thread) 511{ 512 struct branch_stack *br = sample->branch_stack; 513 struct branch_entry *entries = perf_sample__branch_entries(sample); 514 PyObject *pylist; 515 u64 i; 516 517 pylist = PyList_New(0); 518 if (!pylist) 519 Py_FatalError("couldn't create Python list"); 520 521 if (!(br && br->nr)) 522 goto exit; 523 524 for (i = 0; i < br->nr; i++) { 525 PyObject *pyelem; 526 struct addr_location al; 527 const char *dsoname; 528 529 pyelem = PyDict_New(); 530 if (!pyelem) 531 Py_FatalError("couldn't create Python dictionary"); 532 533 pydict_set_item_string_decref(pyelem, "from", 534 PyLong_FromUnsignedLongLong(entries[i].from)); 535 pydict_set_item_string_decref(pyelem, "to", 536 PyLong_FromUnsignedLongLong(entries[i].to)); 537 pydict_set_item_string_decref(pyelem, "mispred", 538 PyBool_FromLong(entries[i].flags.mispred)); 539 pydict_set_item_string_decref(pyelem, "predicted", 540 PyBool_FromLong(entries[i].flags.predicted)); 541 pydict_set_item_string_decref(pyelem, "in_tx", 542 PyBool_FromLong(entries[i].flags.in_tx)); 543 pydict_set_item_string_decref(pyelem, "abort", 544 PyBool_FromLong(entries[i].flags.abort)); 545 pydict_set_item_string_decref(pyelem, "cycles", 546 PyLong_FromUnsignedLongLong(entries[i].flags.cycles)); 547 548 addr_location__init(&al); 549 thread__find_map_fb(thread, sample->cpumode, 550 entries[i].from, &al); 551 dsoname = get_dsoname(al.map); 552 pydict_set_item_string_decref(pyelem, "from_dsoname", 553 _PyUnicode_FromString(dsoname)); 554 555 thread__find_map_fb(thread, sample->cpumode, 556 entries[i].to, &al); 557 dsoname = get_dsoname(al.map); 558 pydict_set_item_string_decref(pyelem, "to_dsoname", 559 _PyUnicode_FromString(dsoname)); 560 561 addr_location__exit(&al); 562 PyList_Append(pylist, pyelem); 563 Py_DECREF(pyelem); 564 } 565 566exit: 567 return pylist; 568} 569 570static int get_symoff(struct symbol *sym, struct addr_location *al, 571 bool print_off, char *bf, int size) 572{ 573 unsigned long offset; 574 575 if (!sym || !sym->name[0]) 576 return scnprintf(bf, size, "%s", "[unknown]"); 577 578 if (!print_off) 579 return scnprintf(bf, size, "%s", sym->name); 580 581 offset = get_offset(sym, al); 582 583 return scnprintf(bf, size, "%s+0x%x", sym->name, offset); 584} 585 586static int get_br_mspred(struct branch_flags *flags, char *bf, int size) 587{ 588 if (!flags->mispred && !flags->predicted) 589 return scnprintf(bf, size, "%s", "-"); 590 591 if (flags->mispred) 592 return scnprintf(bf, size, "%s", "M"); 593 594 return scnprintf(bf, size, "%s", "P"); 595} 596 597static PyObject *python_process_brstacksym(struct perf_sample *sample, 598 struct thread *thread) 599{ 600 struct branch_stack *br = sample->branch_stack; 601 struct branch_entry *entries = perf_sample__branch_entries(sample); 602 PyObject *pylist; 603 u64 i; 604 char bf[512]; 605 606 pylist = PyList_New(0); 607 if (!pylist) 608 Py_FatalError("couldn't create Python list"); 609 610 if (!(br && br->nr)) 611 goto exit; 612 613 for (i = 0; i < br->nr; i++) { 614 PyObject *pyelem; 615 struct addr_location al; 616 617 addr_location__init(&al); 618 pyelem = PyDict_New(); 619 if (!pyelem) 620 Py_FatalError("couldn't create Python dictionary"); 621 622 thread__find_symbol_fb(thread, sample->cpumode, 623 entries[i].from, &al); 624 get_symoff(al.sym, &al, true, bf, sizeof(bf)); 625 pydict_set_item_string_decref(pyelem, "from", 626 _PyUnicode_FromString(bf)); 627 628 thread__find_symbol_fb(thread, sample->cpumode, 629 entries[i].to, &al); 630 get_symoff(al.sym, &al, true, bf, sizeof(bf)); 631 pydict_set_item_string_decref(pyelem, "to", 632 _PyUnicode_FromString(bf)); 633 634 get_br_mspred(&entries[i].flags, bf, sizeof(bf)); 635 pydict_set_item_string_decref(pyelem, "pred", 636 _PyUnicode_FromString(bf)); 637 638 if (entries[i].flags.in_tx) { 639 pydict_set_item_string_decref(pyelem, "in_tx", 640 _PyUnicode_FromString("X")); 641 } else { 642 pydict_set_item_string_decref(pyelem, "in_tx", 643 _PyUnicode_FromString("-")); 644 } 645 646 if (entries[i].flags.abort) { 647 pydict_set_item_string_decref(pyelem, "abort", 648 _PyUnicode_FromString("A")); 649 } else { 650 pydict_set_item_string_decref(pyelem, "abort", 651 _PyUnicode_FromString("-")); 652 } 653 654 PyList_Append(pylist, pyelem); 655 Py_DECREF(pyelem); 656 addr_location__exit(&al); 657 } 658 659exit: 660 return pylist; 661} 662 663static PyObject *get_sample_value_as_tuple(struct sample_read_value *value, 664 u64 read_format) 665{ 666 PyObject *t; 667 668 t = PyTuple_New(3); 669 if (!t) 670 Py_FatalError("couldn't create Python tuple"); 671 PyTuple_SetItem(t, 0, PyLong_FromUnsignedLongLong(value->id)); 672 PyTuple_SetItem(t, 1, PyLong_FromUnsignedLongLong(value->value)); 673 if (read_format & PERF_FORMAT_LOST) 674 PyTuple_SetItem(t, 2, PyLong_FromUnsignedLongLong(value->lost)); 675 676 return t; 677} 678 679static void set_sample_read_in_dict(PyObject *dict_sample, 680 struct perf_sample *sample, 681 struct evsel *evsel) 682{ 683 u64 read_format = evsel->core.attr.read_format; 684 PyObject *values; 685 unsigned int i; 686 687 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { 688 pydict_set_item_string_decref(dict_sample, "time_enabled", 689 PyLong_FromUnsignedLongLong(sample->read.time_enabled)); 690 } 691 692 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { 693 pydict_set_item_string_decref(dict_sample, "time_running", 694 PyLong_FromUnsignedLongLong(sample->read.time_running)); 695 } 696 697 if (read_format & PERF_FORMAT_GROUP) 698 values = PyList_New(sample->read.group.nr); 699 else 700 values = PyList_New(1); 701 702 if (!values) 703 Py_FatalError("couldn't create Python list"); 704 705 if (read_format & PERF_FORMAT_GROUP) { 706 struct sample_read_value *v = sample->read.group.values; 707 708 i = 0; 709 sample_read_group__for_each(v, sample->read.group.nr, read_format) { 710 PyObject *t = get_sample_value_as_tuple(v, read_format); 711 PyList_SET_ITEM(values, i, t); 712 i++; 713 } 714 } else { 715 PyObject *t = get_sample_value_as_tuple(&sample->read.one, 716 read_format); 717 PyList_SET_ITEM(values, 0, t); 718 } 719 pydict_set_item_string_decref(dict_sample, "values", values); 720} 721 722static void set_sample_datasrc_in_dict(PyObject *dict, 723 struct perf_sample *sample) 724{ 725 struct mem_info mi = { .data_src.val = sample->data_src }; 726 char decode[100]; 727 728 pydict_set_item_string_decref(dict, "datasrc", 729 PyLong_FromUnsignedLongLong(sample->data_src)); 730 731 perf_script__meminfo_scnprintf(decode, 100, &mi); 732 733 pydict_set_item_string_decref(dict, "datasrc_decode", 734 _PyUnicode_FromString(decode)); 735} 736 737static void regs_map(struct regs_dump *regs, uint64_t mask, const char *arch, char *bf, int size) 738{ 739 unsigned int i = 0, r; 740 int printed = 0; 741 742 bf[0] = 0; 743 744 if (size <= 0) 745 return; 746 747 if (!regs || !regs->regs) 748 return; 749 750 for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) { 751 u64 val = regs->regs[i++]; 752 753 printed += scnprintf(bf + printed, size - printed, 754 "%5s:0x%" PRIx64 " ", 755 perf_reg_name(r, arch), val); 756 } 757} 758 759static int set_regs_in_dict(PyObject *dict, 760 struct perf_sample *sample, 761 struct evsel *evsel) 762{ 763 struct perf_event_attr *attr = &evsel->core.attr; 764 const char *arch = perf_env__arch(evsel__env(evsel)); 765 766 /* 767 * Here value 28 is a constant size which can be used to print 768 * one register value and its corresponds to: 769 * 16 chars is to specify 64 bit register in hexadecimal. 770 * 2 chars is for appending "0x" to the hexadecimal value and 771 * 10 chars is for register name. 772 */ 773 int size = __sw_hweight64(attr->sample_regs_intr) * 28; 774 char *bf = malloc(size); 775 if (!bf) 776 return -1; 777 778 regs_map(&sample->intr_regs, attr->sample_regs_intr, arch, bf, size); 779 780 pydict_set_item_string_decref(dict, "iregs", 781 _PyUnicode_FromString(bf)); 782 783 regs_map(&sample->user_regs, attr->sample_regs_user, arch, bf, size); 784 785 pydict_set_item_string_decref(dict, "uregs", 786 _PyUnicode_FromString(bf)); 787 free(bf); 788 789 return 0; 790} 791 792static void set_sym_in_dict(PyObject *dict, struct addr_location *al, 793 const char *dso_field, const char *dso_bid_field, 794 const char *dso_map_start, const char *dso_map_end, 795 const char *sym_field, const char *symoff_field) 796{ 797 char sbuild_id[SBUILD_ID_SIZE]; 798 799 if (al->map) { 800 struct dso *dso = map__dso(al->map); 801 802 pydict_set_item_string_decref(dict, dso_field, _PyUnicode_FromString(dso->name)); 803 build_id__sprintf(&dso->bid, sbuild_id); 804 pydict_set_item_string_decref(dict, dso_bid_field, 805 _PyUnicode_FromString(sbuild_id)); 806 pydict_set_item_string_decref(dict, dso_map_start, 807 PyLong_FromUnsignedLong(map__start(al->map))); 808 pydict_set_item_string_decref(dict, dso_map_end, 809 PyLong_FromUnsignedLong(map__end(al->map))); 810 } 811 if (al->sym) { 812 pydict_set_item_string_decref(dict, sym_field, 813 _PyUnicode_FromString(al->sym->name)); 814 pydict_set_item_string_decref(dict, symoff_field, 815 PyLong_FromUnsignedLong(get_offset(al->sym, al))); 816 } 817} 818 819static void set_sample_flags(PyObject *dict, u32 flags) 820{ 821 const char *ch = PERF_IP_FLAG_CHARS; 822 char *p, str[33]; 823 824 for (p = str; *ch; ch++, flags >>= 1) { 825 if (flags & 1) 826 *p++ = *ch; 827 } 828 *p = 0; 829 pydict_set_item_string_decref(dict, "flags", _PyUnicode_FromString(str)); 830} 831 832static void python_process_sample_flags(struct perf_sample *sample, PyObject *dict_sample) 833{ 834 char flags_disp[SAMPLE_FLAGS_BUF_SIZE]; 835 836 set_sample_flags(dict_sample, sample->flags); 837 perf_sample__sprintf_flags(sample->flags, flags_disp, sizeof(flags_disp)); 838 pydict_set_item_string_decref(dict_sample, "flags_disp", 839 _PyUnicode_FromString(flags_disp)); 840} 841 842static PyObject *get_perf_sample_dict(struct perf_sample *sample, 843 struct evsel *evsel, 844 struct addr_location *al, 845 struct addr_location *addr_al, 846 PyObject *callchain) 847{ 848 PyObject *dict, *dict_sample, *brstack, *brstacksym; 849 850 dict = PyDict_New(); 851 if (!dict) 852 Py_FatalError("couldn't create Python dictionary"); 853 854 dict_sample = PyDict_New(); 855 if (!dict_sample) 856 Py_FatalError("couldn't create Python dictionary"); 857 858 pydict_set_item_string_decref(dict, "ev_name", _PyUnicode_FromString(evsel__name(evsel))); 859 pydict_set_item_string_decref(dict, "attr", _PyBytes_FromStringAndSize((const char *)&evsel->core.attr, sizeof(evsel->core.attr))); 860 861 pydict_set_item_string_decref(dict_sample, "id", 862 PyLong_FromUnsignedLongLong(sample->id)); 863 pydict_set_item_string_decref(dict_sample, "stream_id", 864 PyLong_FromUnsignedLongLong(sample->stream_id)); 865 pydict_set_item_string_decref(dict_sample, "pid", 866 _PyLong_FromLong(sample->pid)); 867 pydict_set_item_string_decref(dict_sample, "tid", 868 _PyLong_FromLong(sample->tid)); 869 pydict_set_item_string_decref(dict_sample, "cpu", 870 _PyLong_FromLong(sample->cpu)); 871 pydict_set_item_string_decref(dict_sample, "ip", 872 PyLong_FromUnsignedLongLong(sample->ip)); 873 pydict_set_item_string_decref(dict_sample, "time", 874 PyLong_FromUnsignedLongLong(sample->time)); 875 pydict_set_item_string_decref(dict_sample, "period", 876 PyLong_FromUnsignedLongLong(sample->period)); 877 pydict_set_item_string_decref(dict_sample, "phys_addr", 878 PyLong_FromUnsignedLongLong(sample->phys_addr)); 879 pydict_set_item_string_decref(dict_sample, "addr", 880 PyLong_FromUnsignedLongLong(sample->addr)); 881 set_sample_read_in_dict(dict_sample, sample, evsel); 882 pydict_set_item_string_decref(dict_sample, "weight", 883 PyLong_FromUnsignedLongLong(sample->weight)); 884 pydict_set_item_string_decref(dict_sample, "transaction", 885 PyLong_FromUnsignedLongLong(sample->transaction)); 886 set_sample_datasrc_in_dict(dict_sample, sample); 887 pydict_set_item_string_decref(dict, "sample", dict_sample); 888 889 pydict_set_item_string_decref(dict, "raw_buf", _PyBytes_FromStringAndSize( 890 (const char *)sample->raw_data, sample->raw_size)); 891 pydict_set_item_string_decref(dict, "comm", 892 _PyUnicode_FromString(thread__comm_str(al->thread))); 893 set_sym_in_dict(dict, al, "dso", "dso_bid", "dso_map_start", "dso_map_end", 894 "symbol", "symoff"); 895 896 pydict_set_item_string_decref(dict, "callchain", callchain); 897 898 brstack = python_process_brstack(sample, al->thread); 899 pydict_set_item_string_decref(dict, "brstack", brstack); 900 901 brstacksym = python_process_brstacksym(sample, al->thread); 902 pydict_set_item_string_decref(dict, "brstacksym", brstacksym); 903 904 if (sample->machine_pid) { 905 pydict_set_item_string_decref(dict_sample, "machine_pid", 906 _PyLong_FromLong(sample->machine_pid)); 907 pydict_set_item_string_decref(dict_sample, "vcpu", 908 _PyLong_FromLong(sample->vcpu)); 909 } 910 911 pydict_set_item_string_decref(dict_sample, "cpumode", 912 _PyLong_FromLong((unsigned long)sample->cpumode)); 913 914 if (addr_al) { 915 pydict_set_item_string_decref(dict_sample, "addr_correlates_sym", 916 PyBool_FromLong(1)); 917 set_sym_in_dict(dict_sample, addr_al, "addr_dso", "addr_dso_bid", 918 "addr_dso_map_start", "addr_dso_map_end", 919 "addr_symbol", "addr_symoff"); 920 } 921 922 if (sample->flags) 923 python_process_sample_flags(sample, dict_sample); 924 925 /* Instructions per cycle (IPC) */ 926 if (sample->insn_cnt && sample->cyc_cnt) { 927 pydict_set_item_string_decref(dict_sample, "insn_cnt", 928 PyLong_FromUnsignedLongLong(sample->insn_cnt)); 929 pydict_set_item_string_decref(dict_sample, "cyc_cnt", 930 PyLong_FromUnsignedLongLong(sample->cyc_cnt)); 931 } 932 933 if (set_regs_in_dict(dict, sample, evsel)) 934 Py_FatalError("Failed to setting regs in dict"); 935 936 return dict; 937} 938 939#ifdef HAVE_LIBTRACEEVENT 940static void python_process_tracepoint(struct perf_sample *sample, 941 struct evsel *evsel, 942 struct addr_location *al, 943 struct addr_location *addr_al) 944{ 945 struct tep_event *event = evsel->tp_format; 946 PyObject *handler, *context, *t, *obj = NULL, *callchain; 947 PyObject *dict = NULL, *all_entries_dict = NULL; 948 static char handler_name[256]; 949 struct tep_format_field *field; 950 unsigned long s, ns; 951 unsigned n = 0; 952 int pid; 953 int cpu = sample->cpu; 954 void *data = sample->raw_data; 955 unsigned long long nsecs = sample->time; 956 const char *comm = thread__comm_str(al->thread); 957 const char *default_handler_name = "trace_unhandled"; 958 DECLARE_BITMAP(events_defined, TRACE_EVENT_TYPE_MAX); 959 960 bitmap_zero(events_defined, TRACE_EVENT_TYPE_MAX); 961 962 if (!event) { 963 snprintf(handler_name, sizeof(handler_name), 964 "ug! no event found for type %" PRIu64, (u64)evsel->core.attr.config); 965 Py_FatalError(handler_name); 966 } 967 968 pid = raw_field_value(event, "common_pid", data); 969 970 sprintf(handler_name, "%s__%s", event->system, event->name); 971 972 if (!__test_and_set_bit(event->id, events_defined)) 973 define_event_symbols(event, handler_name, event->print_fmt.args); 974 975 handler = get_handler(handler_name); 976 if (!handler) { 977 handler = get_handler(default_handler_name); 978 if (!handler) 979 return; 980 dict = PyDict_New(); 981 if (!dict) 982 Py_FatalError("couldn't create Python dict"); 983 } 984 985 t = PyTuple_New(MAX_FIELDS); 986 if (!t) 987 Py_FatalError("couldn't create Python tuple"); 988 989 990 s = nsecs / NSEC_PER_SEC; 991 ns = nsecs - s * NSEC_PER_SEC; 992 993 context = _PyCapsule_New(scripting_context, NULL, NULL); 994 995 PyTuple_SetItem(t, n++, _PyUnicode_FromString(handler_name)); 996 PyTuple_SetItem(t, n++, context); 997 998 /* ip unwinding */ 999 callchain = python_process_callchain(sample, evsel, al); 1000 /* Need an additional reference for the perf_sample dict */ 1001 Py_INCREF(callchain); 1002 1003 if (!dict) { 1004 PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu)); 1005 PyTuple_SetItem(t, n++, _PyLong_FromLong(s)); 1006 PyTuple_SetItem(t, n++, _PyLong_FromLong(ns)); 1007 PyTuple_SetItem(t, n++, _PyLong_FromLong(pid)); 1008 PyTuple_SetItem(t, n++, _PyUnicode_FromString(comm)); 1009 PyTuple_SetItem(t, n++, callchain); 1010 } else { 1011 pydict_set_item_string_decref(dict, "common_cpu", _PyLong_FromLong(cpu)); 1012 pydict_set_item_string_decref(dict, "common_s", _PyLong_FromLong(s)); 1013 pydict_set_item_string_decref(dict, "common_ns", _PyLong_FromLong(ns)); 1014 pydict_set_item_string_decref(dict, "common_pid", _PyLong_FromLong(pid)); 1015 pydict_set_item_string_decref(dict, "common_comm", _PyUnicode_FromString(comm)); 1016 pydict_set_item_string_decref(dict, "common_callchain", callchain); 1017 } 1018 for (field = event->format.fields; field; field = field->next) { 1019 unsigned int offset, len; 1020 unsigned long long val; 1021 1022 if (field->flags & TEP_FIELD_IS_ARRAY) { 1023 offset = field->offset; 1024 len = field->size; 1025 if (field->flags & TEP_FIELD_IS_DYNAMIC) { 1026 val = tep_read_number(scripting_context->pevent, 1027 data + offset, len); 1028 offset = val; 1029 len = offset >> 16; 1030 offset &= 0xffff; 1031 if (tep_field_is_relative(field->flags)) 1032 offset += field->offset + field->size; 1033 } 1034 if (field->flags & TEP_FIELD_IS_STRING && 1035 is_printable_array(data + offset, len)) { 1036 obj = _PyUnicode_FromString((char *) data + offset); 1037 } else { 1038 obj = PyByteArray_FromStringAndSize((const char *) data + offset, len); 1039 field->flags &= ~TEP_FIELD_IS_STRING; 1040 } 1041 } else { /* FIELD_IS_NUMERIC */ 1042 obj = get_field_numeric_entry(event, field, data); 1043 } 1044 if (!dict) 1045 PyTuple_SetItem(t, n++, obj); 1046 else 1047 pydict_set_item_string_decref(dict, field->name, obj); 1048 1049 } 1050 1051 if (dict) 1052 PyTuple_SetItem(t, n++, dict); 1053 1054 if (get_argument_count(handler) == (int) n + 1) { 1055 all_entries_dict = get_perf_sample_dict(sample, evsel, al, addr_al, 1056 callchain); 1057 PyTuple_SetItem(t, n++, all_entries_dict); 1058 } else { 1059 Py_DECREF(callchain); 1060 } 1061 1062 if (_PyTuple_Resize(&t, n) == -1) 1063 Py_FatalError("error resizing Python tuple"); 1064 1065 if (!dict) 1066 call_object(handler, t, handler_name); 1067 else 1068 call_object(handler, t, default_handler_name); 1069 1070 Py_DECREF(t); 1071} 1072#else 1073static void python_process_tracepoint(struct perf_sample *sample __maybe_unused, 1074 struct evsel *evsel __maybe_unused, 1075 struct addr_location *al __maybe_unused, 1076 struct addr_location *addr_al __maybe_unused) 1077{ 1078 fprintf(stderr, "Tracepoint events are not supported because " 1079 "perf is not linked with libtraceevent.\n"); 1080} 1081#endif 1082 1083static PyObject *tuple_new(unsigned int sz) 1084{ 1085 PyObject *t; 1086 1087 t = PyTuple_New(sz); 1088 if (!t) 1089 Py_FatalError("couldn't create Python tuple"); 1090 return t; 1091} 1092 1093static int tuple_set_s64(PyObject *t, unsigned int pos, s64 val) 1094{ 1095#if BITS_PER_LONG == 64 1096 return PyTuple_SetItem(t, pos, _PyLong_FromLong(val)); 1097#endif 1098#if BITS_PER_LONG == 32 1099 return PyTuple_SetItem(t, pos, PyLong_FromLongLong(val)); 1100#endif 1101} 1102 1103/* 1104 * Databases support only signed 64-bit numbers, so even though we are 1105 * exporting a u64, it must be as s64. 1106 */ 1107#define tuple_set_d64 tuple_set_s64 1108 1109static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val) 1110{ 1111#if BITS_PER_LONG == 64 1112 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val)); 1113#endif 1114#if BITS_PER_LONG == 32 1115 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLongLong(val)); 1116#endif 1117} 1118 1119static int tuple_set_u32(PyObject *t, unsigned int pos, u32 val) 1120{ 1121 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val)); 1122} 1123 1124static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val) 1125{ 1126 return PyTuple_SetItem(t, pos, _PyLong_FromLong(val)); 1127} 1128 1129static int tuple_set_bool(PyObject *t, unsigned int pos, bool val) 1130{ 1131 return PyTuple_SetItem(t, pos, PyBool_FromLong(val)); 1132} 1133 1134static int tuple_set_string(PyObject *t, unsigned int pos, const char *s) 1135{ 1136 return PyTuple_SetItem(t, pos, _PyUnicode_FromString(s)); 1137} 1138 1139static int tuple_set_bytes(PyObject *t, unsigned int pos, void *bytes, 1140 unsigned int sz) 1141{ 1142 return PyTuple_SetItem(t, pos, _PyBytes_FromStringAndSize(bytes, sz)); 1143} 1144 1145static int python_export_evsel(struct db_export *dbe, struct evsel *evsel) 1146{ 1147 struct tables *tables = container_of(dbe, struct tables, dbe); 1148 PyObject *t; 1149 1150 t = tuple_new(2); 1151 1152 tuple_set_d64(t, 0, evsel->db_id); 1153 tuple_set_string(t, 1, evsel__name(evsel)); 1154 1155 call_object(tables->evsel_handler, t, "evsel_table"); 1156 1157 Py_DECREF(t); 1158 1159 return 0; 1160} 1161 1162static int python_export_machine(struct db_export *dbe, 1163 struct machine *machine) 1164{ 1165 struct tables *tables = container_of(dbe, struct tables, dbe); 1166 PyObject *t; 1167 1168 t = tuple_new(3); 1169 1170 tuple_set_d64(t, 0, machine->db_id); 1171 tuple_set_s32(t, 1, machine->pid); 1172 tuple_set_string(t, 2, machine->root_dir ? machine->root_dir : ""); 1173 1174 call_object(tables->machine_handler, t, "machine_table"); 1175 1176 Py_DECREF(t); 1177 1178 return 0; 1179} 1180 1181static int python_export_thread(struct db_export *dbe, struct thread *thread, 1182 u64 main_thread_db_id, struct machine *machine) 1183{ 1184 struct tables *tables = container_of(dbe, struct tables, dbe); 1185 PyObject *t; 1186 1187 t = tuple_new(5); 1188 1189 tuple_set_d64(t, 0, thread__db_id(thread)); 1190 tuple_set_d64(t, 1, machine->db_id); 1191 tuple_set_d64(t, 2, main_thread_db_id); 1192 tuple_set_s32(t, 3, thread__pid(thread)); 1193 tuple_set_s32(t, 4, thread__tid(thread)); 1194 1195 call_object(tables->thread_handler, t, "thread_table"); 1196 1197 Py_DECREF(t); 1198 1199 return 0; 1200} 1201 1202static int python_export_comm(struct db_export *dbe, struct comm *comm, 1203 struct thread *thread) 1204{ 1205 struct tables *tables = container_of(dbe, struct tables, dbe); 1206 PyObject *t; 1207 1208 t = tuple_new(5); 1209 1210 tuple_set_d64(t, 0, comm->db_id); 1211 tuple_set_string(t, 1, comm__str(comm)); 1212 tuple_set_d64(t, 2, thread__db_id(thread)); 1213 tuple_set_d64(t, 3, comm->start); 1214 tuple_set_s32(t, 4, comm->exec); 1215 1216 call_object(tables->comm_handler, t, "comm_table"); 1217 1218 Py_DECREF(t); 1219 1220 return 0; 1221} 1222 1223static int python_export_comm_thread(struct db_export *dbe, u64 db_id, 1224 struct comm *comm, struct thread *thread) 1225{ 1226 struct tables *tables = container_of(dbe, struct tables, dbe); 1227 PyObject *t; 1228 1229 t = tuple_new(3); 1230 1231 tuple_set_d64(t, 0, db_id); 1232 tuple_set_d64(t, 1, comm->db_id); 1233 tuple_set_d64(t, 2, thread__db_id(thread)); 1234 1235 call_object(tables->comm_thread_handler, t, "comm_thread_table"); 1236 1237 Py_DECREF(t); 1238 1239 return 0; 1240} 1241 1242static int python_export_dso(struct db_export *dbe, struct dso *dso, 1243 struct machine *machine) 1244{ 1245 struct tables *tables = container_of(dbe, struct tables, dbe); 1246 char sbuild_id[SBUILD_ID_SIZE]; 1247 PyObject *t; 1248 1249 build_id__sprintf(&dso->bid, sbuild_id); 1250 1251 t = tuple_new(5); 1252 1253 tuple_set_d64(t, 0, dso->db_id); 1254 tuple_set_d64(t, 1, machine->db_id); 1255 tuple_set_string(t, 2, dso->short_name); 1256 tuple_set_string(t, 3, dso->long_name); 1257 tuple_set_string(t, 4, sbuild_id); 1258 1259 call_object(tables->dso_handler, t, "dso_table"); 1260 1261 Py_DECREF(t); 1262 1263 return 0; 1264} 1265 1266static int python_export_symbol(struct db_export *dbe, struct symbol *sym, 1267 struct dso *dso) 1268{ 1269 struct tables *tables = container_of(dbe, struct tables, dbe); 1270 u64 *sym_db_id = symbol__priv(sym); 1271 PyObject *t; 1272 1273 t = tuple_new(6); 1274 1275 tuple_set_d64(t, 0, *sym_db_id); 1276 tuple_set_d64(t, 1, dso->db_id); 1277 tuple_set_d64(t, 2, sym->start); 1278 tuple_set_d64(t, 3, sym->end); 1279 tuple_set_s32(t, 4, sym->binding); 1280 tuple_set_string(t, 5, sym->name); 1281 1282 call_object(tables->symbol_handler, t, "symbol_table"); 1283 1284 Py_DECREF(t); 1285 1286 return 0; 1287} 1288 1289static int python_export_branch_type(struct db_export *dbe, u32 branch_type, 1290 const char *name) 1291{ 1292 struct tables *tables = container_of(dbe, struct tables, dbe); 1293 PyObject *t; 1294 1295 t = tuple_new(2); 1296 1297 tuple_set_s32(t, 0, branch_type); 1298 tuple_set_string(t, 1, name); 1299 1300 call_object(tables->branch_type_handler, t, "branch_type_table"); 1301 1302 Py_DECREF(t); 1303 1304 return 0; 1305} 1306 1307static void python_export_sample_table(struct db_export *dbe, 1308 struct export_sample *es) 1309{ 1310 struct tables *tables = container_of(dbe, struct tables, dbe); 1311 PyObject *t; 1312 1313 t = tuple_new(27); 1314 1315 tuple_set_d64(t, 0, es->db_id); 1316 tuple_set_d64(t, 1, es->evsel->db_id); 1317 tuple_set_d64(t, 2, maps__machine(es->al->maps)->db_id); 1318 tuple_set_d64(t, 3, thread__db_id(es->al->thread)); 1319 tuple_set_d64(t, 4, es->comm_db_id); 1320 tuple_set_d64(t, 5, es->dso_db_id); 1321 tuple_set_d64(t, 6, es->sym_db_id); 1322 tuple_set_d64(t, 7, es->offset); 1323 tuple_set_d64(t, 8, es->sample->ip); 1324 tuple_set_d64(t, 9, es->sample->time); 1325 tuple_set_s32(t, 10, es->sample->cpu); 1326 tuple_set_d64(t, 11, es->addr_dso_db_id); 1327 tuple_set_d64(t, 12, es->addr_sym_db_id); 1328 tuple_set_d64(t, 13, es->addr_offset); 1329 tuple_set_d64(t, 14, es->sample->addr); 1330 tuple_set_d64(t, 15, es->sample->period); 1331 tuple_set_d64(t, 16, es->sample->weight); 1332 tuple_set_d64(t, 17, es->sample->transaction); 1333 tuple_set_d64(t, 18, es->sample->data_src); 1334 tuple_set_s32(t, 19, es->sample->flags & PERF_BRANCH_MASK); 1335 tuple_set_s32(t, 20, !!(es->sample->flags & PERF_IP_FLAG_IN_TX)); 1336 tuple_set_d64(t, 21, es->call_path_id); 1337 tuple_set_d64(t, 22, es->sample->insn_cnt); 1338 tuple_set_d64(t, 23, es->sample->cyc_cnt); 1339 tuple_set_s32(t, 24, es->sample->flags); 1340 tuple_set_d64(t, 25, es->sample->id); 1341 tuple_set_d64(t, 26, es->sample->stream_id); 1342 1343 call_object(tables->sample_handler, t, "sample_table"); 1344 1345 Py_DECREF(t); 1346} 1347 1348static void python_export_synth(struct db_export *dbe, struct export_sample *es) 1349{ 1350 struct tables *tables = container_of(dbe, struct tables, dbe); 1351 PyObject *t; 1352 1353 t = tuple_new(3); 1354 1355 tuple_set_d64(t, 0, es->db_id); 1356 tuple_set_d64(t, 1, es->evsel->core.attr.config); 1357 tuple_set_bytes(t, 2, es->sample->raw_data, es->sample->raw_size); 1358 1359 call_object(tables->synth_handler, t, "synth_data"); 1360 1361 Py_DECREF(t); 1362} 1363 1364static int python_export_sample(struct db_export *dbe, 1365 struct export_sample *es) 1366{ 1367 struct tables *tables = container_of(dbe, struct tables, dbe); 1368 1369 python_export_sample_table(dbe, es); 1370 1371 if (es->evsel->core.attr.type == PERF_TYPE_SYNTH && tables->synth_handler) 1372 python_export_synth(dbe, es); 1373 1374 return 0; 1375} 1376 1377static int python_export_call_path(struct db_export *dbe, struct call_path *cp) 1378{ 1379 struct tables *tables = container_of(dbe, struct tables, dbe); 1380 PyObject *t; 1381 u64 parent_db_id, sym_db_id; 1382 1383 parent_db_id = cp->parent ? cp->parent->db_id : 0; 1384 sym_db_id = cp->sym ? *(u64 *)symbol__priv(cp->sym) : 0; 1385 1386 t = tuple_new(4); 1387 1388 tuple_set_d64(t, 0, cp->db_id); 1389 tuple_set_d64(t, 1, parent_db_id); 1390 tuple_set_d64(t, 2, sym_db_id); 1391 tuple_set_d64(t, 3, cp->ip); 1392 1393 call_object(tables->call_path_handler, t, "call_path_table"); 1394 1395 Py_DECREF(t); 1396 1397 return 0; 1398} 1399 1400static int python_export_call_return(struct db_export *dbe, 1401 struct call_return *cr) 1402{ 1403 struct tables *tables = container_of(dbe, struct tables, dbe); 1404 u64 comm_db_id = cr->comm ? cr->comm->db_id : 0; 1405 PyObject *t; 1406 1407 t = tuple_new(14); 1408 1409 tuple_set_d64(t, 0, cr->db_id); 1410 tuple_set_d64(t, 1, thread__db_id(cr->thread)); 1411 tuple_set_d64(t, 2, comm_db_id); 1412 tuple_set_d64(t, 3, cr->cp->db_id); 1413 tuple_set_d64(t, 4, cr->call_time); 1414 tuple_set_d64(t, 5, cr->return_time); 1415 tuple_set_d64(t, 6, cr->branch_count); 1416 tuple_set_d64(t, 7, cr->call_ref); 1417 tuple_set_d64(t, 8, cr->return_ref); 1418 tuple_set_d64(t, 9, cr->cp->parent->db_id); 1419 tuple_set_s32(t, 10, cr->flags); 1420 tuple_set_d64(t, 11, cr->parent_db_id); 1421 tuple_set_d64(t, 12, cr->insn_count); 1422 tuple_set_d64(t, 13, cr->cyc_count); 1423 1424 call_object(tables->call_return_handler, t, "call_return_table"); 1425 1426 Py_DECREF(t); 1427 1428 return 0; 1429} 1430 1431static int python_export_context_switch(struct db_export *dbe, u64 db_id, 1432 struct machine *machine, 1433 struct perf_sample *sample, 1434 u64 th_out_id, u64 comm_out_id, 1435 u64 th_in_id, u64 comm_in_id, int flags) 1436{ 1437 struct tables *tables = container_of(dbe, struct tables, dbe); 1438 PyObject *t; 1439 1440 t = tuple_new(9); 1441 1442 tuple_set_d64(t, 0, db_id); 1443 tuple_set_d64(t, 1, machine->db_id); 1444 tuple_set_d64(t, 2, sample->time); 1445 tuple_set_s32(t, 3, sample->cpu); 1446 tuple_set_d64(t, 4, th_out_id); 1447 tuple_set_d64(t, 5, comm_out_id); 1448 tuple_set_d64(t, 6, th_in_id); 1449 tuple_set_d64(t, 7, comm_in_id); 1450 tuple_set_s32(t, 8, flags); 1451 1452 call_object(tables->context_switch_handler, t, "context_switch"); 1453 1454 Py_DECREF(t); 1455 1456 return 0; 1457} 1458 1459static int python_process_call_return(struct call_return *cr, u64 *parent_db_id, 1460 void *data) 1461{ 1462 struct db_export *dbe = data; 1463 1464 return db_export__call_return(dbe, cr, parent_db_id); 1465} 1466 1467static void python_process_general_event(struct perf_sample *sample, 1468 struct evsel *evsel, 1469 struct addr_location *al, 1470 struct addr_location *addr_al) 1471{ 1472 PyObject *handler, *t, *dict, *callchain; 1473 static char handler_name[64]; 1474 unsigned n = 0; 1475 1476 snprintf(handler_name, sizeof(handler_name), "%s", "process_event"); 1477 1478 handler = get_handler(handler_name); 1479 if (!handler) 1480 return; 1481 1482 /* 1483 * Use the MAX_FIELDS to make the function expandable, though 1484 * currently there is only one item for the tuple. 1485 */ 1486 t = PyTuple_New(MAX_FIELDS); 1487 if (!t) 1488 Py_FatalError("couldn't create Python tuple"); 1489 1490 /* ip unwinding */ 1491 callchain = python_process_callchain(sample, evsel, al); 1492 dict = get_perf_sample_dict(sample, evsel, al, addr_al, callchain); 1493 1494 PyTuple_SetItem(t, n++, dict); 1495 if (_PyTuple_Resize(&t, n) == -1) 1496 Py_FatalError("error resizing Python tuple"); 1497 1498 call_object(handler, t, handler_name); 1499 1500 Py_DECREF(t); 1501} 1502 1503static void python_process_event(union perf_event *event, 1504 struct perf_sample *sample, 1505 struct evsel *evsel, 1506 struct addr_location *al, 1507 struct addr_location *addr_al) 1508{ 1509 struct tables *tables = &tables_global; 1510 1511 scripting_context__update(scripting_context, event, sample, evsel, al, addr_al); 1512 1513 switch (evsel->core.attr.type) { 1514 case PERF_TYPE_TRACEPOINT: 1515 python_process_tracepoint(sample, evsel, al, addr_al); 1516 break; 1517 /* Reserve for future process_hw/sw/raw APIs */ 1518 default: 1519 if (tables->db_export_mode) 1520 db_export__sample(&tables->dbe, event, sample, evsel, al, addr_al); 1521 else 1522 python_process_general_event(sample, evsel, al, addr_al); 1523 } 1524} 1525 1526static void python_process_throttle(union perf_event *event, 1527 struct perf_sample *sample, 1528 struct machine *machine) 1529{ 1530 const char *handler_name; 1531 PyObject *handler, *t; 1532 1533 if (event->header.type == PERF_RECORD_THROTTLE) 1534 handler_name = "throttle"; 1535 else 1536 handler_name = "unthrottle"; 1537 handler = get_handler(handler_name); 1538 if (!handler) 1539 return; 1540 1541 t = tuple_new(6); 1542 if (!t) 1543 return; 1544 1545 tuple_set_u64(t, 0, event->throttle.time); 1546 tuple_set_u64(t, 1, event->throttle.id); 1547 tuple_set_u64(t, 2, event->throttle.stream_id); 1548 tuple_set_s32(t, 3, sample->cpu); 1549 tuple_set_s32(t, 4, sample->pid); 1550 tuple_set_s32(t, 5, sample->tid); 1551 1552 call_object(handler, t, handler_name); 1553 1554 Py_DECREF(t); 1555} 1556 1557static void python_do_process_switch(union perf_event *event, 1558 struct perf_sample *sample, 1559 struct machine *machine) 1560{ 1561 const char *handler_name = "context_switch"; 1562 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; 1563 bool out_preempt = out && (event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT); 1564 pid_t np_pid = -1, np_tid = -1; 1565 PyObject *handler, *t; 1566 1567 handler = get_handler(handler_name); 1568 if (!handler) 1569 return; 1570 1571 if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) { 1572 np_pid = event->context_switch.next_prev_pid; 1573 np_tid = event->context_switch.next_prev_tid; 1574 } 1575 1576 t = tuple_new(11); 1577 if (!t) 1578 return; 1579 1580 tuple_set_u64(t, 0, sample->time); 1581 tuple_set_s32(t, 1, sample->cpu); 1582 tuple_set_s32(t, 2, sample->pid); 1583 tuple_set_s32(t, 3, sample->tid); 1584 tuple_set_s32(t, 4, np_pid); 1585 tuple_set_s32(t, 5, np_tid); 1586 tuple_set_s32(t, 6, machine->pid); 1587 tuple_set_bool(t, 7, out); 1588 tuple_set_bool(t, 8, out_preempt); 1589 tuple_set_s32(t, 9, sample->machine_pid); 1590 tuple_set_s32(t, 10, sample->vcpu); 1591 1592 call_object(handler, t, handler_name); 1593 1594 Py_DECREF(t); 1595} 1596 1597static void python_process_switch(union perf_event *event, 1598 struct perf_sample *sample, 1599 struct machine *machine) 1600{ 1601 struct tables *tables = &tables_global; 1602 1603 if (tables->db_export_mode) 1604 db_export__switch(&tables->dbe, event, sample, machine); 1605 else 1606 python_do_process_switch(event, sample, machine); 1607} 1608 1609static void python_process_auxtrace_error(struct perf_session *session __maybe_unused, 1610 union perf_event *event) 1611{ 1612 struct perf_record_auxtrace_error *e = &event->auxtrace_error; 1613 u8 cpumode = e->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 1614 const char *handler_name = "auxtrace_error"; 1615 unsigned long long tm = e->time; 1616 const char *msg = e->msg; 1617 PyObject *handler, *t; 1618 1619 handler = get_handler(handler_name); 1620 if (!handler) 1621 return; 1622 1623 if (!e->fmt) { 1624 tm = 0; 1625 msg = (const char *)&e->time; 1626 } 1627 1628 t = tuple_new(11); 1629 1630 tuple_set_u32(t, 0, e->type); 1631 tuple_set_u32(t, 1, e->code); 1632 tuple_set_s32(t, 2, e->cpu); 1633 tuple_set_s32(t, 3, e->pid); 1634 tuple_set_s32(t, 4, e->tid); 1635 tuple_set_u64(t, 5, e->ip); 1636 tuple_set_u64(t, 6, tm); 1637 tuple_set_string(t, 7, msg); 1638 tuple_set_u32(t, 8, cpumode); 1639 tuple_set_s32(t, 9, e->machine_pid); 1640 tuple_set_s32(t, 10, e->vcpu); 1641 1642 call_object(handler, t, handler_name); 1643 1644 Py_DECREF(t); 1645} 1646 1647static void get_handler_name(char *str, size_t size, 1648 struct evsel *evsel) 1649{ 1650 char *p = str; 1651 1652 scnprintf(str, size, "stat__%s", evsel__name(evsel)); 1653 1654 while ((p = strchr(p, ':'))) { 1655 *p = '_'; 1656 p++; 1657 } 1658} 1659 1660static void 1661process_stat(struct evsel *counter, struct perf_cpu cpu, int thread, u64 tstamp, 1662 struct perf_counts_values *count) 1663{ 1664 PyObject *handler, *t; 1665 static char handler_name[256]; 1666 int n = 0; 1667 1668 t = PyTuple_New(MAX_FIELDS); 1669 if (!t) 1670 Py_FatalError("couldn't create Python tuple"); 1671 1672 get_handler_name(handler_name, sizeof(handler_name), 1673 counter); 1674 1675 handler = get_handler(handler_name); 1676 if (!handler) { 1677 pr_debug("can't find python handler %s\n", handler_name); 1678 return; 1679 } 1680 1681 PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu.cpu)); 1682 PyTuple_SetItem(t, n++, _PyLong_FromLong(thread)); 1683 1684 tuple_set_u64(t, n++, tstamp); 1685 tuple_set_u64(t, n++, count->val); 1686 tuple_set_u64(t, n++, count->ena); 1687 tuple_set_u64(t, n++, count->run); 1688 1689 if (_PyTuple_Resize(&t, n) == -1) 1690 Py_FatalError("error resizing Python tuple"); 1691 1692 call_object(handler, t, handler_name); 1693 1694 Py_DECREF(t); 1695} 1696 1697static void python_process_stat(struct perf_stat_config *config, 1698 struct evsel *counter, u64 tstamp) 1699{ 1700 struct perf_thread_map *threads = counter->core.threads; 1701 struct perf_cpu_map *cpus = counter->core.cpus; 1702 int cpu, thread; 1703 1704 for (thread = 0; thread < perf_thread_map__nr(threads); thread++) { 1705 for (cpu = 0; cpu < perf_cpu_map__nr(cpus); cpu++) { 1706 process_stat(counter, perf_cpu_map__cpu(cpus, cpu), 1707 perf_thread_map__pid(threads, thread), tstamp, 1708 perf_counts(counter->counts, cpu, thread)); 1709 } 1710 } 1711} 1712 1713static void python_process_stat_interval(u64 tstamp) 1714{ 1715 PyObject *handler, *t; 1716 static const char handler_name[] = "stat__interval"; 1717 int n = 0; 1718 1719 t = PyTuple_New(MAX_FIELDS); 1720 if (!t) 1721 Py_FatalError("couldn't create Python tuple"); 1722 1723 handler = get_handler(handler_name); 1724 if (!handler) { 1725 pr_debug("can't find python handler %s\n", handler_name); 1726 return; 1727 } 1728 1729 tuple_set_u64(t, n++, tstamp); 1730 1731 if (_PyTuple_Resize(&t, n) == -1) 1732 Py_FatalError("error resizing Python tuple"); 1733 1734 call_object(handler, t, handler_name); 1735 1736 Py_DECREF(t); 1737} 1738 1739static int perf_script_context_init(void) 1740{ 1741 PyObject *perf_script_context; 1742 PyObject *perf_trace_context; 1743 PyObject *dict; 1744 int ret; 1745 1746 perf_trace_context = PyImport_AddModule("perf_trace_context"); 1747 if (!perf_trace_context) 1748 return -1; 1749 dict = PyModule_GetDict(perf_trace_context); 1750 if (!dict) 1751 return -1; 1752 1753 perf_script_context = _PyCapsule_New(scripting_context, NULL, NULL); 1754 if (!perf_script_context) 1755 return -1; 1756 1757 ret = PyDict_SetItemString(dict, "perf_script_context", perf_script_context); 1758 if (!ret) 1759 ret = PyDict_SetItemString(main_dict, "perf_script_context", perf_script_context); 1760 Py_DECREF(perf_script_context); 1761 return ret; 1762} 1763 1764static int run_start_sub(void) 1765{ 1766 main_module = PyImport_AddModule("__main__"); 1767 if (main_module == NULL) 1768 return -1; 1769 Py_INCREF(main_module); 1770 1771 main_dict = PyModule_GetDict(main_module); 1772 if (main_dict == NULL) 1773 goto error; 1774 Py_INCREF(main_dict); 1775 1776 if (perf_script_context_init()) 1777 goto error; 1778 1779 try_call_object("trace_begin", NULL); 1780 1781 return 0; 1782 1783error: 1784 Py_XDECREF(main_dict); 1785 Py_XDECREF(main_module); 1786 return -1; 1787} 1788 1789#define SET_TABLE_HANDLER_(name, handler_name, table_name) do { \ 1790 tables->handler_name = get_handler(#table_name); \ 1791 if (tables->handler_name) \ 1792 tables->dbe.export_ ## name = python_export_ ## name; \ 1793} while (0) 1794 1795#define SET_TABLE_HANDLER(name) \ 1796 SET_TABLE_HANDLER_(name, name ## _handler, name ## _table) 1797 1798static void set_table_handlers(struct tables *tables) 1799{ 1800 const char *perf_db_export_mode = "perf_db_export_mode"; 1801 const char *perf_db_export_calls = "perf_db_export_calls"; 1802 const char *perf_db_export_callchains = "perf_db_export_callchains"; 1803 PyObject *db_export_mode, *db_export_calls, *db_export_callchains; 1804 bool export_calls = false; 1805 bool export_callchains = false; 1806 int ret; 1807 1808 memset(tables, 0, sizeof(struct tables)); 1809 if (db_export__init(&tables->dbe)) 1810 Py_FatalError("failed to initialize export"); 1811 1812 db_export_mode = PyDict_GetItemString(main_dict, perf_db_export_mode); 1813 if (!db_export_mode) 1814 return; 1815 1816 ret = PyObject_IsTrue(db_export_mode); 1817 if (ret == -1) 1818 handler_call_die(perf_db_export_mode); 1819 if (!ret) 1820 return; 1821 1822 /* handle export calls */ 1823 tables->dbe.crp = NULL; 1824 db_export_calls = PyDict_GetItemString(main_dict, perf_db_export_calls); 1825 if (db_export_calls) { 1826 ret = PyObject_IsTrue(db_export_calls); 1827 if (ret == -1) 1828 handler_call_die(perf_db_export_calls); 1829 export_calls = !!ret; 1830 } 1831 1832 if (export_calls) { 1833 tables->dbe.crp = 1834 call_return_processor__new(python_process_call_return, 1835 &tables->dbe); 1836 if (!tables->dbe.crp) 1837 Py_FatalError("failed to create calls processor"); 1838 } 1839 1840 /* handle export callchains */ 1841 tables->dbe.cpr = NULL; 1842 db_export_callchains = PyDict_GetItemString(main_dict, 1843 perf_db_export_callchains); 1844 if (db_export_callchains) { 1845 ret = PyObject_IsTrue(db_export_callchains); 1846 if (ret == -1) 1847 handler_call_die(perf_db_export_callchains); 1848 export_callchains = !!ret; 1849 } 1850 1851 if (export_callchains) { 1852 /* 1853 * Attempt to use the call path root from the call return 1854 * processor, if the call return processor is in use. Otherwise, 1855 * we allocate a new call path root. This prevents exporting 1856 * duplicate call path ids when both are in use simultaneously. 1857 */ 1858 if (tables->dbe.crp) 1859 tables->dbe.cpr = tables->dbe.crp->cpr; 1860 else 1861 tables->dbe.cpr = call_path_root__new(); 1862 1863 if (!tables->dbe.cpr) 1864 Py_FatalError("failed to create call path root"); 1865 } 1866 1867 tables->db_export_mode = true; 1868 /* 1869 * Reserve per symbol space for symbol->db_id via symbol__priv() 1870 */ 1871 symbol_conf.priv_size = sizeof(u64); 1872 1873 SET_TABLE_HANDLER(evsel); 1874 SET_TABLE_HANDLER(machine); 1875 SET_TABLE_HANDLER(thread); 1876 SET_TABLE_HANDLER(comm); 1877 SET_TABLE_HANDLER(comm_thread); 1878 SET_TABLE_HANDLER(dso); 1879 SET_TABLE_HANDLER(symbol); 1880 SET_TABLE_HANDLER(branch_type); 1881 SET_TABLE_HANDLER(sample); 1882 SET_TABLE_HANDLER(call_path); 1883 SET_TABLE_HANDLER(call_return); 1884 SET_TABLE_HANDLER(context_switch); 1885 1886 /* 1887 * Synthesized events are samples but with architecture-specific data 1888 * stored in sample->raw_data. They are exported via 1889 * python_export_sample() and consequently do not need a separate export 1890 * callback. 1891 */ 1892 tables->synth_handler = get_handler("synth_data"); 1893} 1894 1895#if PY_MAJOR_VERSION < 3 1896static void _free_command_line(const char **command_line, int num) 1897{ 1898 free(command_line); 1899} 1900#else 1901static void _free_command_line(wchar_t **command_line, int num) 1902{ 1903 int i; 1904 for (i = 0; i < num; i++) 1905 PyMem_RawFree(command_line[i]); 1906 free(command_line); 1907} 1908#endif 1909 1910 1911/* 1912 * Start trace script 1913 */ 1914static int python_start_script(const char *script, int argc, const char **argv, 1915 struct perf_session *session) 1916{ 1917 struct tables *tables = &tables_global; 1918#if PY_MAJOR_VERSION < 3 1919 const char **command_line; 1920#else 1921 wchar_t **command_line; 1922#endif 1923 /* 1924 * Use a non-const name variable to cope with python 2.6's 1925 * PyImport_AppendInittab prototype 1926 */ 1927 char buf[PATH_MAX], name[19] = "perf_trace_context"; 1928 int i, err = 0; 1929 FILE *fp; 1930 1931 scripting_context->session = session; 1932#if PY_MAJOR_VERSION < 3 1933 command_line = malloc((argc + 1) * sizeof(const char *)); 1934 if (!command_line) 1935 return -1; 1936 1937 command_line[0] = script; 1938 for (i = 1; i < argc + 1; i++) 1939 command_line[i] = argv[i - 1]; 1940 PyImport_AppendInittab(name, initperf_trace_context); 1941#else 1942 command_line = malloc((argc + 1) * sizeof(wchar_t *)); 1943 if (!command_line) 1944 return -1; 1945 1946 command_line[0] = Py_DecodeLocale(script, NULL); 1947 for (i = 1; i < argc + 1; i++) 1948 command_line[i] = Py_DecodeLocale(argv[i - 1], NULL); 1949 PyImport_AppendInittab(name, PyInit_perf_trace_context); 1950#endif 1951 Py_Initialize(); 1952 1953#if PY_MAJOR_VERSION < 3 1954 PySys_SetArgv(argc + 1, (char **)command_line); 1955#else 1956 PySys_SetArgv(argc + 1, command_line); 1957#endif 1958 1959 fp = fopen(script, "r"); 1960 if (!fp) { 1961 sprintf(buf, "Can't open python script \"%s\"", script); 1962 perror(buf); 1963 err = -1; 1964 goto error; 1965 } 1966 1967 err = PyRun_SimpleFile(fp, script); 1968 if (err) { 1969 fprintf(stderr, "Error running python script %s\n", script); 1970 goto error; 1971 } 1972 1973 err = run_start_sub(); 1974 if (err) { 1975 fprintf(stderr, "Error starting python script %s\n", script); 1976 goto error; 1977 } 1978 1979 set_table_handlers(tables); 1980 1981 if (tables->db_export_mode) { 1982 err = db_export__branch_types(&tables->dbe); 1983 if (err) 1984 goto error; 1985 } 1986 1987 _free_command_line(command_line, argc + 1); 1988 1989 return err; 1990error: 1991 Py_Finalize(); 1992 _free_command_line(command_line, argc + 1); 1993 1994 return err; 1995} 1996 1997static int python_flush_script(void) 1998{ 1999 return 0; 2000} 2001 2002/* 2003 * Stop trace script 2004 */ 2005static int python_stop_script(void) 2006{ 2007 struct tables *tables = &tables_global; 2008 2009 try_call_object("trace_end", NULL); 2010 2011 db_export__exit(&tables->dbe); 2012 2013 Py_XDECREF(main_dict); 2014 Py_XDECREF(main_module); 2015 Py_Finalize(); 2016 2017 return 0; 2018} 2019 2020#ifdef HAVE_LIBTRACEEVENT 2021static int python_generate_script(struct tep_handle *pevent, const char *outfile) 2022{ 2023 int i, not_first, count, nr_events; 2024 struct tep_event **all_events; 2025 struct tep_event *event = NULL; 2026 struct tep_format_field *f; 2027 char fname[PATH_MAX]; 2028 FILE *ofp; 2029 2030 sprintf(fname, "%s.py", outfile); 2031 ofp = fopen(fname, "w"); 2032 if (ofp == NULL) { 2033 fprintf(stderr, "couldn't open %s\n", fname); 2034 return -1; 2035 } 2036 fprintf(ofp, "# perf script event handlers, " 2037 "generated by perf script -g python\n"); 2038 2039 fprintf(ofp, "# Licensed under the terms of the GNU GPL" 2040 " License version 2\n\n"); 2041 2042 fprintf(ofp, "# The common_* event handler fields are the most useful " 2043 "fields common to\n"); 2044 2045 fprintf(ofp, "# all events. They don't necessarily correspond to " 2046 "the 'common_*' fields\n"); 2047 2048 fprintf(ofp, "# in the format files. Those fields not available as " 2049 "handler params can\n"); 2050 2051 fprintf(ofp, "# be retrieved using Python functions of the form " 2052 "common_*(context).\n"); 2053 2054 fprintf(ofp, "# See the perf-script-python Documentation for the list " 2055 "of available functions.\n\n"); 2056 2057 fprintf(ofp, "from __future__ import print_function\n\n"); 2058 fprintf(ofp, "import os\n"); 2059 fprintf(ofp, "import sys\n\n"); 2060 2061 fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n"); 2062 fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n"); 2063 fprintf(ofp, "\nfrom perf_trace_context import *\n"); 2064 fprintf(ofp, "from Core import *\n\n\n"); 2065 2066 fprintf(ofp, "def trace_begin():\n"); 2067 fprintf(ofp, "\tprint(\"in trace_begin\")\n\n"); 2068 2069 fprintf(ofp, "def trace_end():\n"); 2070 fprintf(ofp, "\tprint(\"in trace_end\")\n\n"); 2071 2072 nr_events = tep_get_events_count(pevent); 2073 all_events = tep_list_events(pevent, TEP_EVENT_SORT_ID); 2074 2075 for (i = 0; all_events && i < nr_events; i++) { 2076 event = all_events[i]; 2077 fprintf(ofp, "def %s__%s(", event->system, event->name); 2078 fprintf(ofp, "event_name, "); 2079 fprintf(ofp, "context, "); 2080 fprintf(ofp, "common_cpu,\n"); 2081 fprintf(ofp, "\tcommon_secs, "); 2082 fprintf(ofp, "common_nsecs, "); 2083 fprintf(ofp, "common_pid, "); 2084 fprintf(ofp, "common_comm,\n\t"); 2085 fprintf(ofp, "common_callchain, "); 2086 2087 not_first = 0; 2088 count = 0; 2089 2090 for (f = event->format.fields; f; f = f->next) { 2091 if (not_first++) 2092 fprintf(ofp, ", "); 2093 if (++count % 5 == 0) 2094 fprintf(ofp, "\n\t"); 2095 2096 fprintf(ofp, "%s", f->name); 2097 } 2098 if (not_first++) 2099 fprintf(ofp, ", "); 2100 if (++count % 5 == 0) 2101 fprintf(ofp, "\n\t\t"); 2102 fprintf(ofp, "perf_sample_dict"); 2103 2104 fprintf(ofp, "):\n"); 2105 2106 fprintf(ofp, "\t\tprint_header(event_name, common_cpu, " 2107 "common_secs, common_nsecs,\n\t\t\t" 2108 "common_pid, common_comm)\n\n"); 2109 2110 fprintf(ofp, "\t\tprint(\""); 2111 2112 not_first = 0; 2113 count = 0; 2114 2115 for (f = event->format.fields; f; f = f->next) { 2116 if (not_first++) 2117 fprintf(ofp, ", "); 2118 if (count && count % 3 == 0) { 2119 fprintf(ofp, "\" \\\n\t\t\""); 2120 } 2121 count++; 2122 2123 fprintf(ofp, "%s=", f->name); 2124 if (f->flags & TEP_FIELD_IS_STRING || 2125 f->flags & TEP_FIELD_IS_FLAG || 2126 f->flags & TEP_FIELD_IS_ARRAY || 2127 f->flags & TEP_FIELD_IS_SYMBOLIC) 2128 fprintf(ofp, "%%s"); 2129 else if (f->flags & TEP_FIELD_IS_SIGNED) 2130 fprintf(ofp, "%%d"); 2131 else 2132 fprintf(ofp, "%%u"); 2133 } 2134 2135 fprintf(ofp, "\" %% \\\n\t\t("); 2136 2137 not_first = 0; 2138 count = 0; 2139 2140 for (f = event->format.fields; f; f = f->next) { 2141 if (not_first++) 2142 fprintf(ofp, ", "); 2143 2144 if (++count % 5 == 0) 2145 fprintf(ofp, "\n\t\t"); 2146 2147 if (f->flags & TEP_FIELD_IS_FLAG) { 2148 if ((count - 1) % 5 != 0) { 2149 fprintf(ofp, "\n\t\t"); 2150 count = 4; 2151 } 2152 fprintf(ofp, "flag_str(\""); 2153 fprintf(ofp, "%s__%s\", ", event->system, 2154 event->name); 2155 fprintf(ofp, "\"%s\", %s)", f->name, 2156 f->name); 2157 } else if (f->flags & TEP_FIELD_IS_SYMBOLIC) { 2158 if ((count - 1) % 5 != 0) { 2159 fprintf(ofp, "\n\t\t"); 2160 count = 4; 2161 } 2162 fprintf(ofp, "symbol_str(\""); 2163 fprintf(ofp, "%s__%s\", ", event->system, 2164 event->name); 2165 fprintf(ofp, "\"%s\", %s)", f->name, 2166 f->name); 2167 } else 2168 fprintf(ofp, "%s", f->name); 2169 } 2170 2171 fprintf(ofp, "))\n\n"); 2172 2173 fprintf(ofp, "\t\tprint('Sample: {'+" 2174 "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n"); 2175 2176 fprintf(ofp, "\t\tfor node in common_callchain:"); 2177 fprintf(ofp, "\n\t\t\tif 'sym' in node:"); 2178 fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x] %%s%%s%%s%%s\" %% ("); 2179 fprintf(ofp, "\n\t\t\t\t\tnode['ip'], node['sym']['name'],"); 2180 fprintf(ofp, "\n\t\t\t\t\t\"+0x{:x}\".format(node['sym_off']) if 'sym_off' in node else \"\","); 2181 fprintf(ofp, "\n\t\t\t\t\t\" ({})\".format(node['dso']) if 'dso' in node else \"\","); 2182 fprintf(ofp, "\n\t\t\t\t\t\" \" + node['sym_srcline'] if 'sym_srcline' in node else \"\"))"); 2183 fprintf(ofp, "\n\t\t\telse:"); 2184 fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x]\" %% (node['ip']))\n\n"); 2185 fprintf(ofp, "\t\tprint()\n\n"); 2186 2187 } 2188 2189 fprintf(ofp, "def trace_unhandled(event_name, context, " 2190 "event_fields_dict, perf_sample_dict):\n"); 2191 2192 fprintf(ofp, "\t\tprint(get_dict_as_string(event_fields_dict))\n"); 2193 fprintf(ofp, "\t\tprint('Sample: {'+" 2194 "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n"); 2195 2196 fprintf(ofp, "def print_header(" 2197 "event_name, cpu, secs, nsecs, pid, comm):\n" 2198 "\tprint(\"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t" 2199 "(event_name, cpu, secs, nsecs, pid, comm), end=\"\")\n\n"); 2200 2201 fprintf(ofp, "def get_dict_as_string(a_dict, delimiter=' '):\n" 2202 "\treturn delimiter.join" 2203 "(['%%s=%%s'%%(k,str(v))for k,v in sorted(a_dict.items())])\n"); 2204 2205 fclose(ofp); 2206 2207 fprintf(stderr, "generated Python script: %s\n", fname); 2208 2209 return 0; 2210} 2211#else 2212static int python_generate_script(struct tep_handle *pevent __maybe_unused, 2213 const char *outfile __maybe_unused) 2214{ 2215 fprintf(stderr, "Generating Python perf-script is not supported." 2216 " Install libtraceevent and rebuild perf to enable it.\n" 2217 "For example:\n # apt install libtraceevent-dev (ubuntu)" 2218 "\n # yum install libtraceevent-devel (Fedora)" 2219 "\n etc.\n"); 2220 return -1; 2221} 2222#endif 2223 2224struct scripting_ops python_scripting_ops = { 2225 .name = "Python", 2226 .dirname = "python", 2227 .start_script = python_start_script, 2228 .flush_script = python_flush_script, 2229 .stop_script = python_stop_script, 2230 .process_event = python_process_event, 2231 .process_switch = python_process_switch, 2232 .process_auxtrace_error = python_process_auxtrace_error, 2233 .process_stat = python_process_stat, 2234 .process_stat_interval = python_process_stat_interval, 2235 .process_throttle = python_process_throttle, 2236 .generate_script = python_generate_script, 2237}; 2238