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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
[drm/drm-misc.git] / tools / perf / util / scripting-engines / trace-event-python.c
blob8bdae066e83972a1de1615d676388af0d4b596a7
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 <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 "../mem-info.h"
49 #include "../db-export.h"
50 #include "../thread-stack.h"
51 #include "../trace-event.h"
52 #include "../call-path.h"
53 #include "map.h"
54 #include "symbol.h"
55 #include "thread_map.h"
56 #include "print_binary.h"
57 #include "stat.h"
58 #include "mem-events.h"
59 #include "util/perf_regs.h"
60
61 #if PY_MAJOR_VERSION < 3
62 #define _PyUnicode_FromString(arg) \
63 PyString_FromString(arg)
64 #define _PyUnicode_FromStringAndSize(arg1, arg2) \
65 PyString_FromStringAndSize((arg1), (arg2))
66 #define _PyBytes_FromStringAndSize(arg1, arg2) \
67 PyString_FromStringAndSize((arg1), (arg2))
68 #define _PyLong_FromLong(arg) \
69 PyInt_FromLong(arg)
70 #define _PyLong_AsLong(arg) \
71 PyInt_AsLong(arg)
72 #define _PyCapsule_New(arg1, arg2, arg3) \
73 PyCObject_FromVoidPtr((arg1), (arg2))
74
75 PyMODINIT_FUNC initperf_trace_context(void);
76 #else
77 #define _PyUnicode_FromString(arg) \
78 PyUnicode_FromString(arg)
79 #define _PyUnicode_FromStringAndSize(arg1, arg2) \
80 PyUnicode_FromStringAndSize((arg1), (arg2))
81 #define _PyBytes_FromStringAndSize(arg1, arg2) \
82 PyBytes_FromStringAndSize((arg1), (arg2))
83 #define _PyLong_FromLong(arg) \
84 PyLong_FromLong(arg)
85 #define _PyLong_AsLong(arg) \
86 PyLong_AsLong(arg)
87 #define _PyCapsule_New(arg1, arg2, arg3) \
88 PyCapsule_New((arg1), (arg2), (arg3))
89
90 PyMODINIT_FUNC PyInit_perf_trace_context(void);
91 #endif
92
93 #ifdef HAVE_LIBTRACEEVENT
94 #define TRACE_EVENT_TYPE_MAX \
95 ((1 << (sizeof(unsigned short) * 8)) - 1)
96
97 #define N_COMMON_FIELDS 7
98
99 static char *cur_field_name;
100 static int zero_flag_atom;
101 #endif
102
103 #define MAX_FIELDS 64
104
105 extern struct scripting_context *scripting_context;
106
107 static PyObject *main_module, *main_dict;
108
109 struct tables {
110 struct db_export dbe;
111 PyObject *evsel_handler;
112 PyObject *machine_handler;
113 PyObject *thread_handler;
114 PyObject *comm_handler;
115 PyObject *comm_thread_handler;
116 PyObject *dso_handler;
117 PyObject *symbol_handler;
118 PyObject *branch_type_handler;
119 PyObject *sample_handler;
120 PyObject *call_path_handler;
121 PyObject *call_return_handler;
122 PyObject *synth_handler;
123 PyObject *context_switch_handler;
124 bool db_export_mode;
125 };
126
127 static struct tables tables_global;
128
129 static void handler_call_die(const char *handler_name) __noreturn;
130 static void handler_call_die(const char *handler_name)
131 {
132 PyErr_Print();
133 Py_FatalError("problem in Python trace event handler");
134 // Py_FatalError does not return
135 // but we have to make the compiler happy
136 abort();
137 }
138
139 /*
140 * Insert val into the dictionary and decrement the reference counter.
141 * This is necessary for dictionaries since PyDict_SetItemString() does not
142 * steal a reference, as opposed to PyTuple_SetItem().
143 */
144 static void pydict_set_item_string_decref(PyObject *dict, const char *key, PyObject *val)
145 {
146 PyDict_SetItemString(dict, key, val);
147 Py_DECREF(val);
148 }
149
150 static PyObject *get_handler(const char *handler_name)
151 {
152 PyObject *handler;
153
154 handler = PyDict_GetItemString(main_dict, handler_name);
155 if (handler && !PyCallable_Check(handler))
156 return NULL;
157 return handler;
158 }
159
160 static void call_object(PyObject *handler, PyObject *args, const char *die_msg)
161 {
162 PyObject *retval;
163
164 retval = PyObject_CallObject(handler, args);
165 if (retval == NULL)
166 handler_call_die(die_msg);
167 Py_DECREF(retval);
168 }
169
170 static void try_call_object(const char *handler_name, PyObject *args)
171 {
172 PyObject *handler;
173
174 handler = get_handler(handler_name);
175 if (handler)
176 call_object(handler, args, handler_name);
177 }
178
179 #ifdef HAVE_LIBTRACEEVENT
180 static int get_argument_count(PyObject *handler)
181 {
182 int arg_count = 0;
183
184 /*
185 * The attribute for the code object is func_code in Python 2,
186 * whereas it is __code__ in Python 3.0+.
187 */
188 PyObject *code_obj = PyObject_GetAttrString(handler,
189 "func_code");
190 if (PyErr_Occurred()) {
191 PyErr_Clear();
192 code_obj = PyObject_GetAttrString(handler,
193 "__code__");
194 }
195 PyErr_Clear();
196 if (code_obj) {
197 PyObject *arg_count_obj = PyObject_GetAttrString(code_obj,
198 "co_argcount");
199 if (arg_count_obj) {
200 arg_count = (int) _PyLong_AsLong(arg_count_obj);
201 Py_DECREF(arg_count_obj);
202 }
203 Py_DECREF(code_obj);
204 }
205 return arg_count;
206 }
207
208 static void define_value(enum tep_print_arg_type field_type,
209 const char *ev_name,
210 const char *field_name,
211 const char *field_value,
212 const char *field_str)
213 {
214 const char *handler_name = "define_flag_value";
215 PyObject *t;
216 unsigned long long value;
217 unsigned n = 0;
218
219 if (field_type == TEP_PRINT_SYMBOL)
220 handler_name = "define_symbolic_value";
221
222 t = PyTuple_New(4);
223 if (!t)
224 Py_FatalError("couldn't create Python tuple");
225
226 value = eval_flag(field_value);
227
228 PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name));
229 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name));
230 PyTuple_SetItem(t, n++, _PyLong_FromLong(value));
231 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_str));
232
233 try_call_object(handler_name, t);
234
235 Py_DECREF(t);
236 }
237
238 static void define_values(enum tep_print_arg_type field_type,
239 struct tep_print_flag_sym *field,
240 const char *ev_name,
241 const char *field_name)
242 {
243 define_value(field_type, ev_name, field_name, field->value,
244 field->str);
245
246 if (field->next)
247 define_values(field_type, field->next, ev_name, field_name);
248 }
249
250 static void define_field(enum tep_print_arg_type field_type,
251 const char *ev_name,
252 const char *field_name,
253 const char *delim)
254 {
255 const char *handler_name = "define_flag_field";
256 PyObject *t;
257 unsigned n = 0;
258
259 if (field_type == TEP_PRINT_SYMBOL)
260 handler_name = "define_symbolic_field";
261
262 if (field_type == TEP_PRINT_FLAGS)
263 t = PyTuple_New(3);
264 else
265 t = PyTuple_New(2);
266 if (!t)
267 Py_FatalError("couldn't create Python tuple");
268
269 PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name));
270 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name));
271 if (field_type == TEP_PRINT_FLAGS)
272 PyTuple_SetItem(t, n++, _PyUnicode_FromString(delim));
273
274 try_call_object(handler_name, t);
275
276 Py_DECREF(t);
277 }
278
279 static void define_event_symbols(struct tep_event *event,
280 const char *ev_name,
281 struct tep_print_arg *args)
282 {
283 if (args == NULL)
284 return;
285
286 switch (args->type) {
287 case TEP_PRINT_NULL:
288 break;
289 case TEP_PRINT_ATOM:
290 define_value(TEP_PRINT_FLAGS, ev_name, cur_field_name, "0",
291 args->atom.atom);
292 zero_flag_atom = 0;
293 break;
294 case TEP_PRINT_FIELD:
295 free(cur_field_name);
296 cur_field_name = strdup(args->field.name);
297 break;
298 case TEP_PRINT_FLAGS:
299 define_event_symbols(event, ev_name, args->flags.field);
300 define_field(TEP_PRINT_FLAGS, ev_name, cur_field_name,
301 args->flags.delim);
302 define_values(TEP_PRINT_FLAGS, args->flags.flags, ev_name,
303 cur_field_name);
304 break;
305 case TEP_PRINT_SYMBOL:
306 define_event_symbols(event, ev_name, args->symbol.field);
307 define_field(TEP_PRINT_SYMBOL, ev_name, cur_field_name, NULL);
308 define_values(TEP_PRINT_SYMBOL, args->symbol.symbols, ev_name,
309 cur_field_name);
310 break;
311 case TEP_PRINT_HEX:
312 case TEP_PRINT_HEX_STR:
313 define_event_symbols(event, ev_name, args->hex.field);
314 define_event_symbols(event, ev_name, args->hex.size);
315 break;
316 case TEP_PRINT_INT_ARRAY:
317 define_event_symbols(event, ev_name, args->int_array.field);
318 define_event_symbols(event, ev_name, args->int_array.count);
319 define_event_symbols(event, ev_name, args->int_array.el_size);
320 break;
321 case TEP_PRINT_STRING:
322 break;
323 case TEP_PRINT_TYPE:
324 define_event_symbols(event, ev_name, args->typecast.item);
325 break;
326 case TEP_PRINT_OP:
327 if (strcmp(args->op.op, ":") == 0)
328 zero_flag_atom = 1;
329 define_event_symbols(event, ev_name, args->op.left);
330 define_event_symbols(event, ev_name, args->op.right);
331 break;
332 default:
333 /* gcc warns for these? */
334 case TEP_PRINT_BSTRING:
335 case TEP_PRINT_DYNAMIC_ARRAY:
336 case TEP_PRINT_DYNAMIC_ARRAY_LEN:
337 case TEP_PRINT_FUNC:
338 case TEP_PRINT_BITMASK:
339 /* we should warn... */
340 return;
341 }
342
343 if (args->next)
344 define_event_symbols(event, ev_name, args->next);
345 }
346
347 static PyObject *get_field_numeric_entry(struct tep_event *event,
348 struct tep_format_field *field, void *data)
349 {
350 bool is_array = field->flags & TEP_FIELD_IS_ARRAY;
351 PyObject *obj = NULL, *list = NULL;
352 unsigned long long val;
353 unsigned int item_size, n_items, i;
354
355 if (is_array) {
356 list = PyList_New(field->arraylen);
357 if (!list)
358 Py_FatalError("couldn't create Python list");
359 item_size = field->size / field->arraylen;
360 n_items = field->arraylen;
361 } else {
362 item_size = field->size;
363 n_items = 1;
364 }
365
366 for (i = 0; i < n_items; i++) {
367
368 val = read_size(event, data + field->offset + i * item_size,
369 item_size);
370 if (field->flags & TEP_FIELD_IS_SIGNED) {
371 if ((long long)val >= LONG_MIN &&
372 (long long)val <= LONG_MAX)
373 obj = _PyLong_FromLong(val);
374 else
375 obj = PyLong_FromLongLong(val);
376 } else {
377 if (val <= LONG_MAX)
378 obj = _PyLong_FromLong(val);
379 else
380 obj = PyLong_FromUnsignedLongLong(val);
381 }
382 if (is_array)
383 PyList_SET_ITEM(list, i, obj);
384 }
385 if (is_array)
386 obj = list;
387 return obj;
388 }
389 #endif
390
391 static const char *get_dsoname(struct map *map)
392 {
393 const char *dsoname = "[unknown]";
394 struct dso *dso = map ? map__dso(map) : NULL;
395
396 if (dso) {
397 if (symbol_conf.show_kernel_path && dso__long_name(dso))
398 dsoname = dso__long_name(dso);
399 else
400 dsoname = dso__name(dso);
401 }
402
403 return dsoname;
404 }
405
406 static unsigned long get_offset(struct symbol *sym, struct addr_location *al)
407 {
408 unsigned long offset;
409
410 if (al->addr < sym->end)
411 offset = al->addr - sym->start;
412 else
413 offset = al->addr - map__start(al->map) - sym->start;
414
415 return offset;
416 }
417
418 static PyObject *python_process_callchain(struct perf_sample *sample,
419 struct evsel *evsel,
420 struct addr_location *al)
421 {
422 PyObject *pylist;
423 struct callchain_cursor *cursor;
424
425 pylist = PyList_New(0);
426 if (!pylist)
427 Py_FatalError("couldn't create Python list");
428
429 if (!symbol_conf.use_callchain || !sample->callchain)
430 goto exit;
431
432 cursor = get_tls_callchain_cursor();
433 if (thread__resolve_callchain(al->thread, cursor, evsel,
434 sample, NULL, NULL,
435 scripting_max_stack) != 0) {
436 pr_err("Failed to resolve callchain. Skipping\n");
437 goto exit;
438 }
439 callchain_cursor_commit(cursor);
440
441
442 while (1) {
443 PyObject *pyelem;
444 struct callchain_cursor_node *node;
445 node = callchain_cursor_current(cursor);
446 if (!node)
447 break;
448
449 pyelem = PyDict_New();
450 if (!pyelem)
451 Py_FatalError("couldn't create Python dictionary");
452
453
454 pydict_set_item_string_decref(pyelem, "ip",
455 PyLong_FromUnsignedLongLong(node->ip));
456
457 if (node->ms.sym) {
458 PyObject *pysym = PyDict_New();
459 if (!pysym)
460 Py_FatalError("couldn't create Python dictionary");
461 pydict_set_item_string_decref(pysym, "start",
462 PyLong_FromUnsignedLongLong(node->ms.sym->start));
463 pydict_set_item_string_decref(pysym, "end",
464 PyLong_FromUnsignedLongLong(node->ms.sym->end));
465 pydict_set_item_string_decref(pysym, "binding",
466 _PyLong_FromLong(node->ms.sym->binding));
467 pydict_set_item_string_decref(pysym, "name",
468 _PyUnicode_FromStringAndSize(node->ms.sym->name,
469 node->ms.sym->namelen));
470 pydict_set_item_string_decref(pyelem, "sym", pysym);
471
472 if (node->ms.map) {
473 struct map *map = node->ms.map;
474 struct addr_location node_al;
475 unsigned long offset;
476
477 addr_location__init(&node_al);
478 node_al.addr = map__map_ip(map, node->ip);
479 node_al.map = map__get(map);
480 offset = get_offset(node->ms.sym, &node_al);
481 addr_location__exit(&node_al);
482
483 pydict_set_item_string_decref(
484 pyelem, "sym_off",
485 PyLong_FromUnsignedLongLong(offset));
486 }
487 if (node->srcline && strcmp(":0", node->srcline)) {
488 pydict_set_item_string_decref(
489 pyelem, "sym_srcline",
490 _PyUnicode_FromString(node->srcline));
491 }
492 }
493
494 if (node->ms.map) {
495 const char *dsoname = get_dsoname(node->ms.map);
496
497 pydict_set_item_string_decref(pyelem, "dso",
498 _PyUnicode_FromString(dsoname));
499 }
500
501 callchain_cursor_advance(cursor);
502 PyList_Append(pylist, pyelem);
503 Py_DECREF(pyelem);
504 }
505
506 exit:
507 return pylist;
508 }
509
510 static PyObject *python_process_brstack(struct perf_sample *sample,
511 struct thread *thread)
512 {
513 struct branch_stack *br = sample->branch_stack;
514 struct branch_entry *entries = perf_sample__branch_entries(sample);
515 PyObject *pylist;
516 u64 i;
517
518 pylist = PyList_New(0);
519 if (!pylist)
520 Py_FatalError("couldn't create Python list");
521
522 if (!(br && br->nr))
523 goto exit;
524
525 for (i = 0; i < br->nr; i++) {
526 PyObject *pyelem;
527 struct addr_location al;
528 const char *dsoname;
529
530 pyelem = PyDict_New();
531 if (!pyelem)
532 Py_FatalError("couldn't create Python dictionary");
533
534 pydict_set_item_string_decref(pyelem, "from",
535 PyLong_FromUnsignedLongLong(entries[i].from));
536 pydict_set_item_string_decref(pyelem, "to",
537 PyLong_FromUnsignedLongLong(entries[i].to));
538 pydict_set_item_string_decref(pyelem, "mispred",
539 PyBool_FromLong(entries[i].flags.mispred));
540 pydict_set_item_string_decref(pyelem, "predicted",
541 PyBool_FromLong(entries[i].flags.predicted));
542 pydict_set_item_string_decref(pyelem, "in_tx",
543 PyBool_FromLong(entries[i].flags.in_tx));
544 pydict_set_item_string_decref(pyelem, "abort",
545 PyBool_FromLong(entries[i].flags.abort));
546 pydict_set_item_string_decref(pyelem, "cycles",
547 PyLong_FromUnsignedLongLong(entries[i].flags.cycles));
548
549 addr_location__init(&al);
550 thread__find_map_fb(thread, sample->cpumode,
551 entries[i].from, &al);
552 dsoname = get_dsoname(al.map);
553 pydict_set_item_string_decref(pyelem, "from_dsoname",
554 _PyUnicode_FromString(dsoname));
555
556 thread__find_map_fb(thread, sample->cpumode,
557 entries[i].to, &al);
558 dsoname = get_dsoname(al.map);
559 pydict_set_item_string_decref(pyelem, "to_dsoname",
560 _PyUnicode_FromString(dsoname));
561
562 addr_location__exit(&al);
563 PyList_Append(pylist, pyelem);
564 Py_DECREF(pyelem);
565 }
566
567 exit:
568 return pylist;
569 }
570
571 static int get_symoff(struct symbol *sym, struct addr_location *al,
572 bool print_off, char *bf, int size)
573 {
574 unsigned long offset;
575
576 if (!sym || !sym->name[0])
577 return scnprintf(bf, size, "%s", "[unknown]");
578
579 if (!print_off)
580 return scnprintf(bf, size, "%s", sym->name);
581
582 offset = get_offset(sym, al);
583
584 return scnprintf(bf, size, "%s+0x%x", sym->name, offset);
585 }
586
587 static int get_br_mspred(struct branch_flags *flags, char *bf, int size)
588 {
589 if (!flags->mispred && !flags->predicted)
590 return scnprintf(bf, size, "%s", "-");
591
592 if (flags->mispred)
593 return scnprintf(bf, size, "%s", "M");
594
595 return scnprintf(bf, size, "%s", "P");
596 }
597
598 static PyObject *python_process_brstacksym(struct perf_sample *sample,
599 struct thread *thread)
600 {
601 struct branch_stack *br = sample->branch_stack;
602 struct branch_entry *entries = perf_sample__branch_entries(sample);
603 PyObject *pylist;
604 u64 i;
605 char bf[512];
606
607 pylist = PyList_New(0);
608 if (!pylist)
609 Py_FatalError("couldn't create Python list");
610
611 if (!(br && br->nr))
612 goto exit;
613
614 for (i = 0; i < br->nr; i++) {
615 PyObject *pyelem;
616 struct addr_location al;
617
618 addr_location__init(&al);
619 pyelem = PyDict_New();
620 if (!pyelem)
621 Py_FatalError("couldn't create Python dictionary");
622
623 thread__find_symbol_fb(thread, sample->cpumode,
624 entries[i].from, &al);
625 get_symoff(al.sym, &al, true, bf, sizeof(bf));
626 pydict_set_item_string_decref(pyelem, "from",
627 _PyUnicode_FromString(bf));
628
629 thread__find_symbol_fb(thread, sample->cpumode,
630 entries[i].to, &al);
631 get_symoff(al.sym, &al, true, bf, sizeof(bf));
632 pydict_set_item_string_decref(pyelem, "to",
633 _PyUnicode_FromString(bf));
634
635 get_br_mspred(&entries[i].flags, bf, sizeof(bf));
636 pydict_set_item_string_decref(pyelem, "pred",
637 _PyUnicode_FromString(bf));
638
639 if (entries[i].flags.in_tx) {
640 pydict_set_item_string_decref(pyelem, "in_tx",
641 _PyUnicode_FromString("X"));
642 } else {
643 pydict_set_item_string_decref(pyelem, "in_tx",
644 _PyUnicode_FromString("-"));
645 }
646
647 if (entries[i].flags.abort) {
648 pydict_set_item_string_decref(pyelem, "abort",
649 _PyUnicode_FromString("A"));
650 } else {
651 pydict_set_item_string_decref(pyelem, "abort",
652 _PyUnicode_FromString("-"));
653 }
654
655 PyList_Append(pylist, pyelem);
656 Py_DECREF(pyelem);
657 addr_location__exit(&al);
658 }
659
660 exit:
661 return pylist;
662 }
663
664 static PyObject *get_sample_value_as_tuple(struct sample_read_value *value,
665 u64 read_format)
666 {
667 PyObject *t;
668
669 t = PyTuple_New(3);
670 if (!t)
671 Py_FatalError("couldn't create Python tuple");
672 PyTuple_SetItem(t, 0, PyLong_FromUnsignedLongLong(value->id));
673 PyTuple_SetItem(t, 1, PyLong_FromUnsignedLongLong(value->value));
674 if (read_format & PERF_FORMAT_LOST)
675 PyTuple_SetItem(t, 2, PyLong_FromUnsignedLongLong(value->lost));
676
677 return t;
678 }
679
680 static void set_sample_read_in_dict(PyObject *dict_sample,
681 struct perf_sample *sample,
682 struct evsel *evsel)
683 {
684 u64 read_format = evsel->core.attr.read_format;
685 PyObject *values;
686 unsigned int i;
687
688 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
689 pydict_set_item_string_decref(dict_sample, "time_enabled",
690 PyLong_FromUnsignedLongLong(sample->read.time_enabled));
691 }
692
693 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
694 pydict_set_item_string_decref(dict_sample, "time_running",
695 PyLong_FromUnsignedLongLong(sample->read.time_running));
696 }
697
698 if (read_format & PERF_FORMAT_GROUP)
699 values = PyList_New(sample->read.group.nr);
700 else
701 values = PyList_New(1);
702
703 if (!values)
704 Py_FatalError("couldn't create Python list");
705
706 if (read_format & PERF_FORMAT_GROUP) {
707 struct sample_read_value *v = sample->read.group.values;
708
709 i = 0;
710 sample_read_group__for_each(v, sample->read.group.nr, read_format) {
711 PyObject *t = get_sample_value_as_tuple(v, read_format);
712 PyList_SET_ITEM(values, i, t);
713 i++;
714 }
715 } else {
716 PyObject *t = get_sample_value_as_tuple(&sample->read.one,
717 read_format);
718 PyList_SET_ITEM(values, 0, t);
719 }
720 pydict_set_item_string_decref(dict_sample, "values", values);
721 }
722
723 static void set_sample_datasrc_in_dict(PyObject *dict,
724 struct perf_sample *sample)
725 {
726 struct mem_info *mi = mem_info__new();
727 char decode[100];
728
729 if (!mi)
730 Py_FatalError("couldn't create mem-info");
731
732 pydict_set_item_string_decref(dict, "datasrc",
733 PyLong_FromUnsignedLongLong(sample->data_src));
734
735 mem_info__data_src(mi)->val = sample->data_src;
736 perf_script__meminfo_scnprintf(decode, 100, mi);
737 mem_info__put(mi);
738
739 pydict_set_item_string_decref(dict, "datasrc_decode",
740 _PyUnicode_FromString(decode));
741 }
742
743 static void regs_map(struct regs_dump *regs, uint64_t mask, const char *arch, char *bf, int size)
744 {
745 unsigned int i = 0, r;
746 int printed = 0;
747
748 bf[0] = 0;
749
750 if (size <= 0)
751 return;
752
753 if (!regs || !regs->regs)
754 return;
755
756 for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
757 u64 val = regs->regs[i++];
758
759 printed += scnprintf(bf + printed, size - printed,
760 "%5s:0x%" PRIx64 " ",
761 perf_reg_name(r, arch), val);
762 }
763 }
764
765 #define MAX_REG_SIZE 128
766
767 static int set_regs_in_dict(PyObject *dict,
768 struct perf_sample *sample,
769 struct evsel *evsel)
770 {
771 struct perf_event_attr *attr = &evsel->core.attr;
772 const char *arch = perf_env__arch(evsel__env(evsel));
773
774 int size = (__sw_hweight64(attr->sample_regs_intr) * MAX_REG_SIZE) + 1;
775 char *bf = malloc(size);
776 if (!bf)
777 return -1;
778
779 regs_map(&sample->intr_regs, attr->sample_regs_intr, arch, bf, size);
780
781 pydict_set_item_string_decref(dict, "iregs",
782 _PyUnicode_FromString(bf));
783
784 regs_map(&sample->user_regs, attr->sample_regs_user, arch, bf, size);
785
786 pydict_set_item_string_decref(dict, "uregs",
787 _PyUnicode_FromString(bf));
788 free(bf);
789
790 return 0;
791 }
792
793 static void set_sym_in_dict(PyObject *dict, struct addr_location *al,
794 const char *dso_field, const char *dso_bid_field,
795 const char *dso_map_start, const char *dso_map_end,
796 const char *sym_field, const char *symoff_field,
797 const char *map_pgoff)
798 {
799 char sbuild_id[SBUILD_ID_SIZE];
800
801 if (al->map) {
802 struct dso *dso = map__dso(al->map);
803
804 pydict_set_item_string_decref(dict, dso_field,
805 _PyUnicode_FromString(dso__name(dso)));
806 build_id__sprintf(dso__bid(dso), sbuild_id);
807 pydict_set_item_string_decref(dict, dso_bid_field,
808 _PyUnicode_FromString(sbuild_id));
809 pydict_set_item_string_decref(dict, dso_map_start,
810 PyLong_FromUnsignedLong(map__start(al->map)));
811 pydict_set_item_string_decref(dict, dso_map_end,
812 PyLong_FromUnsignedLong(map__end(al->map)));
813 pydict_set_item_string_decref(dict, map_pgoff,
814 PyLong_FromUnsignedLongLong(map__pgoff(al->map)));
815 }
816 if (al->sym) {
817 pydict_set_item_string_decref(dict, sym_field,
818 _PyUnicode_FromString(al->sym->name));
819 pydict_set_item_string_decref(dict, symoff_field,
820 PyLong_FromUnsignedLong(get_offset(al->sym, al)));
821 }
822 }
823
824 static void set_sample_flags(PyObject *dict, u32 flags)
825 {
826 const char *ch = PERF_IP_FLAG_CHARS;
827 char *p, str[33];
828
829 for (p = str; *ch; ch++, flags >>= 1) {
830 if (flags & 1)
831 *p++ = *ch;
832 }
833 *p = 0;
834 pydict_set_item_string_decref(dict, "flags", _PyUnicode_FromString(str));
835 }
836
837 static void python_process_sample_flags(struct perf_sample *sample, PyObject *dict_sample)
838 {
839 char flags_disp[SAMPLE_FLAGS_BUF_SIZE];
840
841 set_sample_flags(dict_sample, sample->flags);
842 perf_sample__sprintf_flags(sample->flags, flags_disp, sizeof(flags_disp));
843 pydict_set_item_string_decref(dict_sample, "flags_disp",
844 _PyUnicode_FromString(flags_disp));
845 }
846
847 static PyObject *get_perf_sample_dict(struct perf_sample *sample,
848 struct evsel *evsel,
849 struct addr_location *al,
850 struct addr_location *addr_al,
851 PyObject *callchain)
852 {
853 PyObject *dict, *dict_sample, *brstack, *brstacksym;
854
855 dict = PyDict_New();
856 if (!dict)
857 Py_FatalError("couldn't create Python dictionary");
858
859 dict_sample = PyDict_New();
860 if (!dict_sample)
861 Py_FatalError("couldn't create Python dictionary");
862
863 pydict_set_item_string_decref(dict, "ev_name", _PyUnicode_FromString(evsel__name(evsel)));
864 pydict_set_item_string_decref(dict, "attr", _PyBytes_FromStringAndSize((const char *)&evsel->core.attr, sizeof(evsel->core.attr)));
865
866 pydict_set_item_string_decref(dict_sample, "id",
867 PyLong_FromUnsignedLongLong(sample->id));
868 pydict_set_item_string_decref(dict_sample, "stream_id",
869 PyLong_FromUnsignedLongLong(sample->stream_id));
870 pydict_set_item_string_decref(dict_sample, "pid",
871 _PyLong_FromLong(sample->pid));
872 pydict_set_item_string_decref(dict_sample, "tid",
873 _PyLong_FromLong(sample->tid));
874 pydict_set_item_string_decref(dict_sample, "cpu",
875 _PyLong_FromLong(sample->cpu));
876 pydict_set_item_string_decref(dict_sample, "ip",
877 PyLong_FromUnsignedLongLong(sample->ip));
878 pydict_set_item_string_decref(dict_sample, "time",
879 PyLong_FromUnsignedLongLong(sample->time));
880 pydict_set_item_string_decref(dict_sample, "period",
881 PyLong_FromUnsignedLongLong(sample->period));
882 pydict_set_item_string_decref(dict_sample, "phys_addr",
883 PyLong_FromUnsignedLongLong(sample->phys_addr));
884 pydict_set_item_string_decref(dict_sample, "addr",
885 PyLong_FromUnsignedLongLong(sample->addr));
886 set_sample_read_in_dict(dict_sample, sample, evsel);
887 pydict_set_item_string_decref(dict_sample, "weight",
888 PyLong_FromUnsignedLongLong(sample->weight));
889 pydict_set_item_string_decref(dict_sample, "ins_lat",
890 PyLong_FromUnsignedLong(sample->ins_lat));
891 pydict_set_item_string_decref(dict_sample, "transaction",
892 PyLong_FromUnsignedLongLong(sample->transaction));
893 set_sample_datasrc_in_dict(dict_sample, sample);
894 pydict_set_item_string_decref(dict, "sample", dict_sample);
895
896 pydict_set_item_string_decref(dict, "raw_buf", _PyBytes_FromStringAndSize(
897 (const char *)sample->raw_data, sample->raw_size));
898 pydict_set_item_string_decref(dict, "comm",
899 _PyUnicode_FromString(thread__comm_str(al->thread)));
900 set_sym_in_dict(dict, al, "dso", "dso_bid", "dso_map_start", "dso_map_end",
901 "symbol", "symoff", "map_pgoff");
902
903 pydict_set_item_string_decref(dict, "callchain", callchain);
904
905 brstack = python_process_brstack(sample, al->thread);
906 pydict_set_item_string_decref(dict, "brstack", brstack);
907
908 brstacksym = python_process_brstacksym(sample, al->thread);
909 pydict_set_item_string_decref(dict, "brstacksym", brstacksym);
910
911 if (sample->machine_pid) {
912 pydict_set_item_string_decref(dict_sample, "machine_pid",
913 _PyLong_FromLong(sample->machine_pid));
914 pydict_set_item_string_decref(dict_sample, "vcpu",
915 _PyLong_FromLong(sample->vcpu));
916 }
917
918 pydict_set_item_string_decref(dict_sample, "cpumode",
919 _PyLong_FromLong((unsigned long)sample->cpumode));
920
921 if (addr_al) {
922 pydict_set_item_string_decref(dict_sample, "addr_correlates_sym",
923 PyBool_FromLong(1));
924 set_sym_in_dict(dict_sample, addr_al, "addr_dso", "addr_dso_bid",
925 "addr_dso_map_start", "addr_dso_map_end",
926 "addr_symbol", "addr_symoff", "addr_map_pgoff");
927 }
928
929 if (sample->flags)
930 python_process_sample_flags(sample, dict_sample);
931
932 /* Instructions per cycle (IPC) */
933 if (sample->insn_cnt && sample->cyc_cnt) {
934 pydict_set_item_string_decref(dict_sample, "insn_cnt",
935 PyLong_FromUnsignedLongLong(sample->insn_cnt));
936 pydict_set_item_string_decref(dict_sample, "cyc_cnt",
937 PyLong_FromUnsignedLongLong(sample->cyc_cnt));
938 }
939
940 if (set_regs_in_dict(dict, sample, evsel))
941 Py_FatalError("Failed to setting regs in dict");
942
943 return dict;
944 }
945
946 #ifdef HAVE_LIBTRACEEVENT
947 static void python_process_tracepoint(struct perf_sample *sample,
948 struct evsel *evsel,
949 struct addr_location *al,
950 struct addr_location *addr_al)
951 {
952 struct tep_event *event = evsel->tp_format;
953 PyObject *handler, *context, *t, *obj = NULL, *callchain;
954 PyObject *dict = NULL, *all_entries_dict = NULL;
955 static char handler_name[256];
956 struct tep_format_field *field;
957 unsigned long s, ns;
958 unsigned n = 0;
959 int pid;
960 int cpu = sample->cpu;
961 void *data = sample->raw_data;
962 unsigned long long nsecs = sample->time;
963 const char *comm = thread__comm_str(al->thread);
964 const char *default_handler_name = "trace_unhandled";
965 DECLARE_BITMAP(events_defined, TRACE_EVENT_TYPE_MAX);
966
967 bitmap_zero(events_defined, TRACE_EVENT_TYPE_MAX);
968
969 if (!event) {
970 snprintf(handler_name, sizeof(handler_name),
971 "ug! no event found for type %" PRIu64, (u64)evsel->core.attr.config);
972 Py_FatalError(handler_name);
973 }
974
975 pid = raw_field_value(event, "common_pid", data);
976
977 sprintf(handler_name, "%s__%s", event->system, event->name);
978
979 if (!__test_and_set_bit(event->id, events_defined))
980 define_event_symbols(event, handler_name, event->print_fmt.args);
981
982 handler = get_handler(handler_name);
983 if (!handler) {
984 handler = get_handler(default_handler_name);
985 if (!handler)
986 return;
987 dict = PyDict_New();
988 if (!dict)
989 Py_FatalError("couldn't create Python dict");
990 }
991
992 t = PyTuple_New(MAX_FIELDS);
993 if (!t)
994 Py_FatalError("couldn't create Python tuple");
995
996
997 s = nsecs / NSEC_PER_SEC;
998 ns = nsecs - s * NSEC_PER_SEC;
999
1000 context = _PyCapsule_New(scripting_context, NULL, NULL);
1001
1002 PyTuple_SetItem(t, n++, _PyUnicode_FromString(handler_name));
1003 PyTuple_SetItem(t, n++, context);
1004
1005 /* ip unwinding */
1006 callchain = python_process_callchain(sample, evsel, al);
1007 /* Need an additional reference for the perf_sample dict */
1008 Py_INCREF(callchain);
1009
1010 if (!dict) {
1011 PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu));
1012 PyTuple_SetItem(t, n++, _PyLong_FromLong(s));
1013 PyTuple_SetItem(t, n++, _PyLong_FromLong(ns));
1014 PyTuple_SetItem(t, n++, _PyLong_FromLong(pid));
1015 PyTuple_SetItem(t, n++, _PyUnicode_FromString(comm));
1016 PyTuple_SetItem(t, n++, callchain);
1017 } else {
1018 pydict_set_item_string_decref(dict, "common_cpu", _PyLong_FromLong(cpu));
1019 pydict_set_item_string_decref(dict, "common_s", _PyLong_FromLong(s));
1020 pydict_set_item_string_decref(dict, "common_ns", _PyLong_FromLong(ns));
1021 pydict_set_item_string_decref(dict, "common_pid", _PyLong_FromLong(pid));
1022 pydict_set_item_string_decref(dict, "common_comm", _PyUnicode_FromString(comm));
1023 pydict_set_item_string_decref(dict, "common_callchain", callchain);
1024 }
1025 for (field = event->format.fields; field; field = field->next) {
1026 unsigned int offset, len;
1027 unsigned long long val;
1028
1029 if (field->flags & TEP_FIELD_IS_ARRAY) {
1030 offset = field->offset;
1031 len = field->size;
1032 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
1033 val = tep_read_number(scripting_context->pevent,
1034 data + offset, len);
1035 offset = val;
1036 len = offset >> 16;
1037 offset &= 0xffff;
1038 if (tep_field_is_relative(field->flags))
1039 offset += field->offset + field->size;
1040 }
1041 if (field->flags & TEP_FIELD_IS_STRING &&
1042 is_printable_array(data + offset, len)) {
1043 obj = _PyUnicode_FromString((char *) data + offset);
1044 } else {
1045 obj = PyByteArray_FromStringAndSize((const char *) data + offset, len);
1046 field->flags &= ~TEP_FIELD_IS_STRING;
1047 }
1048 } else { /* FIELD_IS_NUMERIC */
1049 obj = get_field_numeric_entry(event, field, data);
1050 }
1051 if (!dict)
1052 PyTuple_SetItem(t, n++, obj);
1053 else
1054 pydict_set_item_string_decref(dict, field->name, obj);
1055
1056 }
1057
1058 if (dict)
1059 PyTuple_SetItem(t, n++, dict);
1060
1061 if (get_argument_count(handler) == (int) n + 1) {
1062 all_entries_dict = get_perf_sample_dict(sample, evsel, al, addr_al,
1063 callchain);
1064 PyTuple_SetItem(t, n++, all_entries_dict);
1065 } else {
1066 Py_DECREF(callchain);
1067 }
1068
1069 if (_PyTuple_Resize(&t, n) == -1)
1070 Py_FatalError("error resizing Python tuple");
1071
1072 if (!dict)
1073 call_object(handler, t, handler_name);
1074 else
1075 call_object(handler, t, default_handler_name);
1076
1077 Py_DECREF(t);
1078 }
1079 #else
1080 static void python_process_tracepoint(struct perf_sample *sample __maybe_unused,
1081 struct evsel *evsel __maybe_unused,
1082 struct addr_location *al __maybe_unused,
1083 struct addr_location *addr_al __maybe_unused)
1084 {
1085 fprintf(stderr, "Tracepoint events are not supported because "
1086 "perf is not linked with libtraceevent.\n");
1087 }
1088 #endif
1089
1090 static PyObject *tuple_new(unsigned int sz)
1091 {
1092 PyObject *t;
1093
1094 t = PyTuple_New(sz);
1095 if (!t)
1096 Py_FatalError("couldn't create Python tuple");
1097 return t;
1098 }
1099
1100 static int tuple_set_s64(PyObject *t, unsigned int pos, s64 val)
1101 {
1102 #if BITS_PER_LONG == 64
1103 return PyTuple_SetItem(t, pos, _PyLong_FromLong(val));
1104 #endif
1105 #if BITS_PER_LONG == 32
1106 return PyTuple_SetItem(t, pos, PyLong_FromLongLong(val));
1107 #endif
1108 }
1109
1110 /*
1111 * Databases support only signed 64-bit numbers, so even though we are
1112 * exporting a u64, it must be as s64.
1113 */
1114 #define tuple_set_d64 tuple_set_s64
1115
1116 static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val)
1117 {
1118 #if BITS_PER_LONG == 64
1119 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val));
1120 #endif
1121 #if BITS_PER_LONG == 32
1122 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLongLong(val));
1123 #endif
1124 }
1125
1126 static int tuple_set_u32(PyObject *t, unsigned int pos, u32 val)
1127 {
1128 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val));
1129 }
1130
1131 static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val)
1132 {
1133 return PyTuple_SetItem(t, pos, _PyLong_FromLong(val));
1134 }
1135
1136 static int tuple_set_bool(PyObject *t, unsigned int pos, bool val)
1137 {
1138 return PyTuple_SetItem(t, pos, PyBool_FromLong(val));
1139 }
1140
1141 static int tuple_set_string(PyObject *t, unsigned int pos, const char *s)
1142 {
1143 return PyTuple_SetItem(t, pos, _PyUnicode_FromString(s));
1144 }
1145
1146 static int tuple_set_bytes(PyObject *t, unsigned int pos, void *bytes,
1147 unsigned int sz)
1148 {
1149 return PyTuple_SetItem(t, pos, _PyBytes_FromStringAndSize(bytes, sz));
1150 }
1151
1152 static int python_export_evsel(struct db_export *dbe, struct evsel *evsel)
1153 {
1154 struct tables *tables = container_of(dbe, struct tables, dbe);
1155 PyObject *t;
1156
1157 t = tuple_new(2);
1158
1159 tuple_set_d64(t, 0, evsel->db_id);
1160 tuple_set_string(t, 1, evsel__name(evsel));
1161
1162 call_object(tables->evsel_handler, t, "evsel_table");
1163
1164 Py_DECREF(t);
1165
1166 return 0;
1167 }
1168
1169 static int python_export_machine(struct db_export *dbe,
1170 struct machine *machine)
1171 {
1172 struct tables *tables = container_of(dbe, struct tables, dbe);
1173 PyObject *t;
1174
1175 t = tuple_new(3);
1176
1177 tuple_set_d64(t, 0, machine->db_id);
1178 tuple_set_s32(t, 1, machine->pid);
1179 tuple_set_string(t, 2, machine->root_dir ? machine->root_dir : "");
1180
1181 call_object(tables->machine_handler, t, "machine_table");
1182
1183 Py_DECREF(t);
1184
1185 return 0;
1186 }
1187
1188 static int python_export_thread(struct db_export *dbe, struct thread *thread,
1189 u64 main_thread_db_id, struct machine *machine)
1190 {
1191 struct tables *tables = container_of(dbe, struct tables, dbe);
1192 PyObject *t;
1193
1194 t = tuple_new(5);
1195
1196 tuple_set_d64(t, 0, thread__db_id(thread));
1197 tuple_set_d64(t, 1, machine->db_id);
1198 tuple_set_d64(t, 2, main_thread_db_id);
1199 tuple_set_s32(t, 3, thread__pid(thread));
1200 tuple_set_s32(t, 4, thread__tid(thread));
1201
1202 call_object(tables->thread_handler, t, "thread_table");
1203
1204 Py_DECREF(t);
1205
1206 return 0;
1207 }
1208
1209 static int python_export_comm(struct db_export *dbe, struct comm *comm,
1210 struct thread *thread)
1211 {
1212 struct tables *tables = container_of(dbe, struct tables, dbe);
1213 PyObject *t;
1214
1215 t = tuple_new(5);
1216
1217 tuple_set_d64(t, 0, comm->db_id);
1218 tuple_set_string(t, 1, comm__str(comm));
1219 tuple_set_d64(t, 2, thread__db_id(thread));
1220 tuple_set_d64(t, 3, comm->start);
1221 tuple_set_s32(t, 4, comm->exec);
1222
1223 call_object(tables->comm_handler, t, "comm_table");
1224
1225 Py_DECREF(t);
1226
1227 return 0;
1228 }
1229
1230 static int python_export_comm_thread(struct db_export *dbe, u64 db_id,
1231 struct comm *comm, struct thread *thread)
1232 {
1233 struct tables *tables = container_of(dbe, struct tables, dbe);
1234 PyObject *t;
1235
1236 t = tuple_new(3);
1237
1238 tuple_set_d64(t, 0, db_id);
1239 tuple_set_d64(t, 1, comm->db_id);
1240 tuple_set_d64(t, 2, thread__db_id(thread));
1241
1242 call_object(tables->comm_thread_handler, t, "comm_thread_table");
1243
1244 Py_DECREF(t);
1245
1246 return 0;
1247 }
1248
1249 static int python_export_dso(struct db_export *dbe, struct dso *dso,
1250 struct machine *machine)
1251 {
1252 struct tables *tables = container_of(dbe, struct tables, dbe);
1253 char sbuild_id[SBUILD_ID_SIZE];
1254 PyObject *t;
1255
1256 build_id__sprintf(dso__bid(dso), sbuild_id);
1257
1258 t = tuple_new(5);
1259
1260 tuple_set_d64(t, 0, dso__db_id(dso));
1261 tuple_set_d64(t, 1, machine->db_id);
1262 tuple_set_string(t, 2, dso__short_name(dso));
1263 tuple_set_string(t, 3, dso__long_name(dso));
1264 tuple_set_string(t, 4, sbuild_id);
1265
1266 call_object(tables->dso_handler, t, "dso_table");
1267
1268 Py_DECREF(t);
1269
1270 return 0;
1271 }
1272
1273 static int python_export_symbol(struct db_export *dbe, struct symbol *sym,
1274 struct dso *dso)
1275 {
1276 struct tables *tables = container_of(dbe, struct tables, dbe);
1277 u64 *sym_db_id = symbol__priv(sym);
1278 PyObject *t;
1279
1280 t = tuple_new(6);
1281
1282 tuple_set_d64(t, 0, *sym_db_id);
1283 tuple_set_d64(t, 1, dso__db_id(dso));
1284 tuple_set_d64(t, 2, sym->start);
1285 tuple_set_d64(t, 3, sym->end);
1286 tuple_set_s32(t, 4, sym->binding);
1287 tuple_set_string(t, 5, sym->name);
1288
1289 call_object(tables->symbol_handler, t, "symbol_table");
1290
1291 Py_DECREF(t);
1292
1293 return 0;
1294 }
1295
1296 static int python_export_branch_type(struct db_export *dbe, u32 branch_type,
1297 const char *name)
1298 {
1299 struct tables *tables = container_of(dbe, struct tables, dbe);
1300 PyObject *t;
1301
1302 t = tuple_new(2);
1303
1304 tuple_set_s32(t, 0, branch_type);
1305 tuple_set_string(t, 1, name);
1306
1307 call_object(tables->branch_type_handler, t, "branch_type_table");
1308
1309 Py_DECREF(t);
1310
1311 return 0;
1312 }
1313
1314 static void python_export_sample_table(struct db_export *dbe,
1315 struct export_sample *es)
1316 {
1317 struct tables *tables = container_of(dbe, struct tables, dbe);
1318 PyObject *t;
1319
1320 t = tuple_new(28);
1321
1322 tuple_set_d64(t, 0, es->db_id);
1323 tuple_set_d64(t, 1, es->evsel->db_id);
1324 tuple_set_d64(t, 2, maps__machine(es->al->maps)->db_id);
1325 tuple_set_d64(t, 3, thread__db_id(es->al->thread));
1326 tuple_set_d64(t, 4, es->comm_db_id);
1327 tuple_set_d64(t, 5, es->dso_db_id);
1328 tuple_set_d64(t, 6, es->sym_db_id);
1329 tuple_set_d64(t, 7, es->offset);
1330 tuple_set_d64(t, 8, es->sample->ip);
1331 tuple_set_d64(t, 9, es->sample->time);
1332 tuple_set_s32(t, 10, es->sample->cpu);
1333 tuple_set_d64(t, 11, es->addr_dso_db_id);
1334 tuple_set_d64(t, 12, es->addr_sym_db_id);
1335 tuple_set_d64(t, 13, es->addr_offset);
1336 tuple_set_d64(t, 14, es->sample->addr);
1337 tuple_set_d64(t, 15, es->sample->period);
1338 tuple_set_d64(t, 16, es->sample->weight);
1339 tuple_set_d64(t, 17, es->sample->transaction);
1340 tuple_set_d64(t, 18, es->sample->data_src);
1341 tuple_set_s32(t, 19, es->sample->flags & PERF_BRANCH_MASK);
1342 tuple_set_s32(t, 20, !!(es->sample->flags & PERF_IP_FLAG_IN_TX));
1343 tuple_set_d64(t, 21, es->call_path_id);
1344 tuple_set_d64(t, 22, es->sample->insn_cnt);
1345 tuple_set_d64(t, 23, es->sample->cyc_cnt);
1346 tuple_set_s32(t, 24, es->sample->flags);
1347 tuple_set_d64(t, 25, es->sample->id);
1348 tuple_set_d64(t, 26, es->sample->stream_id);
1349 tuple_set_u32(t, 27, es->sample->ins_lat);
1350
1351 call_object(tables->sample_handler, t, "sample_table");
1352
1353 Py_DECREF(t);
1354 }
1355
1356 static void python_export_synth(struct db_export *dbe, struct export_sample *es)
1357 {
1358 struct tables *tables = container_of(dbe, struct tables, dbe);
1359 PyObject *t;
1360
1361 t = tuple_new(3);
1362
1363 tuple_set_d64(t, 0, es->db_id);
1364 tuple_set_d64(t, 1, es->evsel->core.attr.config);
1365 tuple_set_bytes(t, 2, es->sample->raw_data, es->sample->raw_size);
1366
1367 call_object(tables->synth_handler, t, "synth_data");
1368
1369 Py_DECREF(t);
1370 }
1371
1372 static int python_export_sample(struct db_export *dbe,
1373 struct export_sample *es)
1374 {
1375 struct tables *tables = container_of(dbe, struct tables, dbe);
1376
1377 python_export_sample_table(dbe, es);
1378
1379 if (es->evsel->core.attr.type == PERF_TYPE_SYNTH && tables->synth_handler)
1380 python_export_synth(dbe, es);
1381
1382 return 0;
1383 }
1384
1385 static int python_export_call_path(struct db_export *dbe, struct call_path *cp)
1386 {
1387 struct tables *tables = container_of(dbe, struct tables, dbe);
1388 PyObject *t;
1389 u64 parent_db_id, sym_db_id;
1390
1391 parent_db_id = cp->parent ? cp->parent->db_id : 0;
1392 sym_db_id = cp->sym ? *(u64 *)symbol__priv(cp->sym) : 0;
1393
1394 t = tuple_new(4);
1395
1396 tuple_set_d64(t, 0, cp->db_id);
1397 tuple_set_d64(t, 1, parent_db_id);
1398 tuple_set_d64(t, 2, sym_db_id);
1399 tuple_set_d64(t, 3, cp->ip);
1400
1401 call_object(tables->call_path_handler, t, "call_path_table");
1402
1403 Py_DECREF(t);
1404
1405 return 0;
1406 }
1407
1408 static int python_export_call_return(struct db_export *dbe,
1409 struct call_return *cr)
1410 {
1411 struct tables *tables = container_of(dbe, struct tables, dbe);
1412 u64 comm_db_id = cr->comm ? cr->comm->db_id : 0;
1413 PyObject *t;
1414
1415 t = tuple_new(14);
1416
1417 tuple_set_d64(t, 0, cr->db_id);
1418 tuple_set_d64(t, 1, thread__db_id(cr->thread));
1419 tuple_set_d64(t, 2, comm_db_id);
1420 tuple_set_d64(t, 3, cr->cp->db_id);
1421 tuple_set_d64(t, 4, cr->call_time);
1422 tuple_set_d64(t, 5, cr->return_time);
1423 tuple_set_d64(t, 6, cr->branch_count);
1424 tuple_set_d64(t, 7, cr->call_ref);
1425 tuple_set_d64(t, 8, cr->return_ref);
1426 tuple_set_d64(t, 9, cr->cp->parent->db_id);
1427 tuple_set_s32(t, 10, cr->flags);
1428 tuple_set_d64(t, 11, cr->parent_db_id);
1429 tuple_set_d64(t, 12, cr->insn_count);
1430 tuple_set_d64(t, 13, cr->cyc_count);
1431
1432 call_object(tables->call_return_handler, t, "call_return_table");
1433
1434 Py_DECREF(t);
1435
1436 return 0;
1437 }
1438
1439 static int python_export_context_switch(struct db_export *dbe, u64 db_id,
1440 struct machine *machine,
1441 struct perf_sample *sample,
1442 u64 th_out_id, u64 comm_out_id,
1443 u64 th_in_id, u64 comm_in_id, int flags)
1444 {
1445 struct tables *tables = container_of(dbe, struct tables, dbe);
1446 PyObject *t;
1447
1448 t = tuple_new(9);
1449
1450 tuple_set_d64(t, 0, db_id);
1451 tuple_set_d64(t, 1, machine->db_id);
1452 tuple_set_d64(t, 2, sample->time);
1453 tuple_set_s32(t, 3, sample->cpu);
1454 tuple_set_d64(t, 4, th_out_id);
1455 tuple_set_d64(t, 5, comm_out_id);
1456 tuple_set_d64(t, 6, th_in_id);
1457 tuple_set_d64(t, 7, comm_in_id);
1458 tuple_set_s32(t, 8, flags);
1459
1460 call_object(tables->context_switch_handler, t, "context_switch");
1461
1462 Py_DECREF(t);
1463
1464 return 0;
1465 }
1466
1467 static int python_process_call_return(struct call_return *cr, u64 *parent_db_id,
1468 void *data)
1469 {
1470 struct db_export *dbe = data;
1471
1472 return db_export__call_return(dbe, cr, parent_db_id);
1473 }
1474
1475 static void python_process_general_event(struct perf_sample *sample,
1476 struct evsel *evsel,
1477 struct addr_location *al,
1478 struct addr_location *addr_al)
1479 {
1480 PyObject *handler, *t, *dict, *callchain;
1481 static char handler_name[64];
1482 unsigned n = 0;
1483
1484 snprintf(handler_name, sizeof(handler_name), "%s", "process_event");
1485
1486 handler = get_handler(handler_name);
1487 if (!handler)
1488 return;
1489
1490 /*
1491 * Use the MAX_FIELDS to make the function expandable, though
1492 * currently there is only one item for the tuple.
1493 */
1494 t = PyTuple_New(MAX_FIELDS);
1495 if (!t)
1496 Py_FatalError("couldn't create Python tuple");
1497
1498 /* ip unwinding */
1499 callchain = python_process_callchain(sample, evsel, al);
1500 dict = get_perf_sample_dict(sample, evsel, al, addr_al, callchain);
1501
1502 PyTuple_SetItem(t, n++, dict);
1503 if (_PyTuple_Resize(&t, n) == -1)
1504 Py_FatalError("error resizing Python tuple");
1505
1506 call_object(handler, t, handler_name);
1507
1508 Py_DECREF(t);
1509 }
1510
1511 static void python_process_event(union perf_event *event,
1512 struct perf_sample *sample,
1513 struct evsel *evsel,
1514 struct addr_location *al,
1515 struct addr_location *addr_al)
1516 {
1517 struct tables *tables = &tables_global;
1518
1519 scripting_context__update(scripting_context, event, sample, evsel, al, addr_al);
1520
1521 switch (evsel->core.attr.type) {
1522 case PERF_TYPE_TRACEPOINT:
1523 python_process_tracepoint(sample, evsel, al, addr_al);
1524 break;
1525 /* Reserve for future process_hw/sw/raw APIs */
1526 default:
1527 if (tables->db_export_mode)
1528 db_export__sample(&tables->dbe, event, sample, evsel, al, addr_al);
1529 else
1530 python_process_general_event(sample, evsel, al, addr_al);
1531 }
1532 }
1533
1534 static void python_process_throttle(union perf_event *event,
1535 struct perf_sample *sample,
1536 struct machine *machine)
1537 {
1538 const char *handler_name;
1539 PyObject *handler, *t;
1540
1541 if (event->header.type == PERF_RECORD_THROTTLE)
1542 handler_name = "throttle";
1543 else
1544 handler_name = "unthrottle";
1545 handler = get_handler(handler_name);
1546 if (!handler)
1547 return;
1548
1549 t = tuple_new(6);
1550 if (!t)
1551 return;
1552
1553 tuple_set_u64(t, 0, event->throttle.time);
1554 tuple_set_u64(t, 1, event->throttle.id);
1555 tuple_set_u64(t, 2, event->throttle.stream_id);
1556 tuple_set_s32(t, 3, sample->cpu);
1557 tuple_set_s32(t, 4, sample->pid);
1558 tuple_set_s32(t, 5, sample->tid);
1559
1560 call_object(handler, t, handler_name);
1561
1562 Py_DECREF(t);
1563 }
1564
1565 static void python_do_process_switch(union perf_event *event,
1566 struct perf_sample *sample,
1567 struct machine *machine)
1568 {
1569 const char *handler_name = "context_switch";
1570 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
1571 bool out_preempt = out && (event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT);
1572 pid_t np_pid = -1, np_tid = -1;
1573 PyObject *handler, *t;
1574
1575 handler = get_handler(handler_name);
1576 if (!handler)
1577 return;
1578
1579 if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) {
1580 np_pid = event->context_switch.next_prev_pid;
1581 np_tid = event->context_switch.next_prev_tid;
1582 }
1583
1584 t = tuple_new(11);
1585 if (!t)
1586 return;
1587
1588 tuple_set_u64(t, 0, sample->time);
1589 tuple_set_s32(t, 1, sample->cpu);
1590 tuple_set_s32(t, 2, sample->pid);
1591 tuple_set_s32(t, 3, sample->tid);
1592 tuple_set_s32(t, 4, np_pid);
1593 tuple_set_s32(t, 5, np_tid);
1594 tuple_set_s32(t, 6, machine->pid);
1595 tuple_set_bool(t, 7, out);
1596 tuple_set_bool(t, 8, out_preempt);
1597 tuple_set_s32(t, 9, sample->machine_pid);
1598 tuple_set_s32(t, 10, sample->vcpu);
1599
1600 call_object(handler, t, handler_name);
1601
1602 Py_DECREF(t);
1603 }
1604
1605 static void python_process_switch(union perf_event *event,
1606 struct perf_sample *sample,
1607 struct machine *machine)
1608 {
1609 struct tables *tables = &tables_global;
1610
1611 if (tables->db_export_mode)
1612 db_export__switch(&tables->dbe, event, sample, machine);
1613 else
1614 python_do_process_switch(event, sample, machine);
1615 }
1616
1617 static void python_process_auxtrace_error(struct perf_session *session __maybe_unused,
1618 union perf_event *event)
1619 {
1620 struct perf_record_auxtrace_error *e = &event->auxtrace_error;
1621 u8 cpumode = e->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
1622 const char *handler_name = "auxtrace_error";
1623 unsigned long long tm = e->time;
1624 const char *msg = e->msg;
1625 PyObject *handler, *t;
1626
1627 handler = get_handler(handler_name);
1628 if (!handler)
1629 return;
1630
1631 if (!e->fmt) {
1632 tm = 0;
1633 msg = (const char *)&e->time;
1634 }
1635
1636 t = tuple_new(11);
1637
1638 tuple_set_u32(t, 0, e->type);
1639 tuple_set_u32(t, 1, e->code);
1640 tuple_set_s32(t, 2, e->cpu);
1641 tuple_set_s32(t, 3, e->pid);
1642 tuple_set_s32(t, 4, e->tid);
1643 tuple_set_u64(t, 5, e->ip);
1644 tuple_set_u64(t, 6, tm);
1645 tuple_set_string(t, 7, msg);
1646 tuple_set_u32(t, 8, cpumode);
1647 tuple_set_s32(t, 9, e->machine_pid);
1648 tuple_set_s32(t, 10, e->vcpu);
1649
1650 call_object(handler, t, handler_name);
1651
1652 Py_DECREF(t);
1653 }
1654
1655 static void get_handler_name(char *str, size_t size,
1656 struct evsel *evsel)
1657 {
1658 char *p = str;
1659
1660 scnprintf(str, size, "stat__%s", evsel__name(evsel));
1661
1662 while ((p = strchr(p, ':'))) {
1663 *p = '_';
1664 p++;
1665 }
1666 }
1667
1668 static void
1669 process_stat(struct evsel *counter, struct perf_cpu cpu, int thread, u64 tstamp,
1670 struct perf_counts_values *count)
1671 {
1672 PyObject *handler, *t;
1673 static char handler_name[256];
1674 int n = 0;
1675
1676 t = PyTuple_New(MAX_FIELDS);
1677 if (!t)
1678 Py_FatalError("couldn't create Python tuple");
1679
1680 get_handler_name(handler_name, sizeof(handler_name),
1681 counter);
1682
1683 handler = get_handler(handler_name);
1684 if (!handler) {
1685 pr_debug("can't find python handler %s\n", handler_name);
1686 return;
1687 }
1688
1689 PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu.cpu));
1690 PyTuple_SetItem(t, n++, _PyLong_FromLong(thread));
1691
1692 tuple_set_u64(t, n++, tstamp);
1693 tuple_set_u64(t, n++, count->val);
1694 tuple_set_u64(t, n++, count->ena);
1695 tuple_set_u64(t, n++, count->run);
1696
1697 if (_PyTuple_Resize(&t, n) == -1)
1698 Py_FatalError("error resizing Python tuple");
1699
1700 call_object(handler, t, handler_name);
1701
1702 Py_DECREF(t);
1703 }
1704
1705 static void python_process_stat(struct perf_stat_config *config,
1706 struct evsel *counter, u64 tstamp)
1707 {
1708 struct perf_thread_map *threads = counter->core.threads;
1709 struct perf_cpu_map *cpus = counter->core.cpus;
1710
1711 for (int thread = 0; thread < perf_thread_map__nr(threads); thread++) {
1712 int idx;
1713 struct perf_cpu cpu;
1714
1715 perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
1716 process_stat(counter, cpu,
1717 perf_thread_map__pid(threads, thread), tstamp,
1718 perf_counts(counter->counts, idx, thread));
1719 }
1720 }
1721 }
1722
1723 static void python_process_stat_interval(u64 tstamp)
1724 {
1725 PyObject *handler, *t;
1726 static const char handler_name[] = "stat__interval";
1727 int n = 0;
1728
1729 t = PyTuple_New(MAX_FIELDS);
1730 if (!t)
1731 Py_FatalError("couldn't create Python tuple");
1732
1733 handler = get_handler(handler_name);
1734 if (!handler) {
1735 pr_debug("can't find python handler %s\n", handler_name);
1736 return;
1737 }
1738
1739 tuple_set_u64(t, n++, tstamp);
1740
1741 if (_PyTuple_Resize(&t, n) == -1)
1742 Py_FatalError("error resizing Python tuple");
1743
1744 call_object(handler, t, handler_name);
1745
1746 Py_DECREF(t);
1747 }
1748
1749 static int perf_script_context_init(void)
1750 {
1751 PyObject *perf_script_context;
1752 PyObject *perf_trace_context;
1753 PyObject *dict;
1754 int ret;
1755
1756 perf_trace_context = PyImport_AddModule("perf_trace_context");
1757 if (!perf_trace_context)
1758 return -1;
1759 dict = PyModule_GetDict(perf_trace_context);
1760 if (!dict)
1761 return -1;
1762
1763 perf_script_context = _PyCapsule_New(scripting_context, NULL, NULL);
1764 if (!perf_script_context)
1765 return -1;
1766
1767 ret = PyDict_SetItemString(dict, "perf_script_context", perf_script_context);
1768 if (!ret)
1769 ret = PyDict_SetItemString(main_dict, "perf_script_context", perf_script_context);
1770 Py_DECREF(perf_script_context);
1771 return ret;
1772 }
1773
1774 static int run_start_sub(void)
1775 {
1776 main_module = PyImport_AddModule("__main__");
1777 if (main_module == NULL)
1778 return -1;
1779 Py_INCREF(main_module);
1780
1781 main_dict = PyModule_GetDict(main_module);
1782 if (main_dict == NULL)
1783 goto error;
1784 Py_INCREF(main_dict);
1785
1786 if (perf_script_context_init())
1787 goto error;
1788
1789 try_call_object("trace_begin", NULL);
1790
1791 return 0;
1792
1793 error:
1794 Py_XDECREF(main_dict);
1795 Py_XDECREF(main_module);
1796 return -1;
1797 }
1798
1799 #define SET_TABLE_HANDLER_(name, handler_name, table_name) do { \
1800 tables->handler_name = get_handler(#table_name); \
1801 if (tables->handler_name) \
1802 tables->dbe.export_ ## name = python_export_ ## name; \
1803 } while (0)
1804
1805 #define SET_TABLE_HANDLER(name) \
1806 SET_TABLE_HANDLER_(name, name ## _handler, name ## _table)
1807
1808 static void set_table_handlers(struct tables *tables)
1809 {
1810 const char *perf_db_export_mode = "perf_db_export_mode";
1811 const char *perf_db_export_calls = "perf_db_export_calls";
1812 const char *perf_db_export_callchains = "perf_db_export_callchains";
1813 PyObject *db_export_mode, *db_export_calls, *db_export_callchains;
1814 bool export_calls = false;
1815 bool export_callchains = false;
1816 int ret;
1817
1818 memset(tables, 0, sizeof(struct tables));
1819 if (db_export__init(&tables->dbe))
1820 Py_FatalError("failed to initialize export");
1821
1822 db_export_mode = PyDict_GetItemString(main_dict, perf_db_export_mode);
1823 if (!db_export_mode)
1824 return;
1825
1826 ret = PyObject_IsTrue(db_export_mode);
1827 if (ret == -1)
1828 handler_call_die(perf_db_export_mode);
1829 if (!ret)
1830 return;
1831
1832 /* handle export calls */
1833 tables->dbe.crp = NULL;
1834 db_export_calls = PyDict_GetItemString(main_dict, perf_db_export_calls);
1835 if (db_export_calls) {
1836 ret = PyObject_IsTrue(db_export_calls);
1837 if (ret == -1)
1838 handler_call_die(perf_db_export_calls);
1839 export_calls = !!ret;
1840 }
1841
1842 if (export_calls) {
1843 tables->dbe.crp =
1844 call_return_processor__new(python_process_call_return,
1845 &tables->dbe);
1846 if (!tables->dbe.crp)
1847 Py_FatalError("failed to create calls processor");
1848 }
1849
1850 /* handle export callchains */
1851 tables->dbe.cpr = NULL;
1852 db_export_callchains = PyDict_GetItemString(main_dict,
1853 perf_db_export_callchains);
1854 if (db_export_callchains) {
1855 ret = PyObject_IsTrue(db_export_callchains);
1856 if (ret == -1)
1857 handler_call_die(perf_db_export_callchains);
1858 export_callchains = !!ret;
1859 }
1860
1861 if (export_callchains) {
1862 /*
1863 * Attempt to use the call path root from the call return
1864 * processor, if the call return processor is in use. Otherwise,
1865 * we allocate a new call path root. This prevents exporting
1866 * duplicate call path ids when both are in use simultaneously.
1867 */
1868 if (tables->dbe.crp)
1869 tables->dbe.cpr = tables->dbe.crp->cpr;
1870 else
1871 tables->dbe.cpr = call_path_root__new();
1872
1873 if (!tables->dbe.cpr)
1874 Py_FatalError("failed to create call path root");
1875 }
1876
1877 tables->db_export_mode = true;
1878 /*
1879 * Reserve per symbol space for symbol->db_id via symbol__priv()
1880 */
1881 symbol_conf.priv_size = sizeof(u64);
1882
1883 SET_TABLE_HANDLER(evsel);
1884 SET_TABLE_HANDLER(machine);
1885 SET_TABLE_HANDLER(thread);
1886 SET_TABLE_HANDLER(comm);
1887 SET_TABLE_HANDLER(comm_thread);
1888 SET_TABLE_HANDLER(dso);
1889 SET_TABLE_HANDLER(symbol);
1890 SET_TABLE_HANDLER(branch_type);
1891 SET_TABLE_HANDLER(sample);
1892 SET_TABLE_HANDLER(call_path);
1893 SET_TABLE_HANDLER(call_return);
1894 SET_TABLE_HANDLER(context_switch);
1895
1896 /*
1897 * Synthesized events are samples but with architecture-specific data
1898 * stored in sample->raw_data. They are exported via
1899 * python_export_sample() and consequently do not need a separate export
1900 * callback.
1901 */
1902 tables->synth_handler = get_handler("synth_data");
1903 }
1904
1905 #if PY_MAJOR_VERSION < 3
1906 static void _free_command_line(const char **command_line, int num)
1907 {
1908 free(command_line);
1909 }
1910 #else
1911 static void _free_command_line(wchar_t **command_line, int num)
1912 {
1913 int i;
1914 for (i = 0; i < num; i++)
1915 PyMem_RawFree(command_line[i]);
1916 free(command_line);
1917 }
1918 #endif
1919
1920
1921 /*
1922 * Start trace script
1923 */
1924 static int python_start_script(const char *script, int argc, const char **argv,
1925 struct perf_session *session)
1926 {
1927 struct tables *tables = &tables_global;
1928 #if PY_MAJOR_VERSION < 3
1929 const char **command_line;
1930 #else
1931 wchar_t **command_line;
1932 #endif
1933 /*
1934 * Use a non-const name variable to cope with python 2.6's
1935 * PyImport_AppendInittab prototype
1936 */
1937 char buf[PATH_MAX], name[19] = "perf_trace_context";
1938 int i, err = 0;
1939 FILE *fp;
1940
1941 scripting_context->session = session;
1942 #if PY_MAJOR_VERSION < 3
1943 command_line = malloc((argc + 1) * sizeof(const char *));
1944 if (!command_line)
1945 return -1;
1946
1947 command_line[0] = script;
1948 for (i = 1; i < argc + 1; i++)
1949 command_line[i] = argv[i - 1];
1950 PyImport_AppendInittab(name, initperf_trace_context);
1951 #else
1952 command_line = malloc((argc + 1) * sizeof(wchar_t *));
1953 if (!command_line)
1954 return -1;
1955
1956 command_line[0] = Py_DecodeLocale(script, NULL);
1957 for (i = 1; i < argc + 1; i++)
1958 command_line[i] = Py_DecodeLocale(argv[i - 1], NULL);
1959 PyImport_AppendInittab(name, PyInit_perf_trace_context);
1960 #endif
1961 Py_Initialize();
1962
1963 #if PY_MAJOR_VERSION < 3
1964 PySys_SetArgv(argc + 1, (char **)command_line);
1965 #else
1966 PySys_SetArgv(argc + 1, command_line);
1967 #endif
1968
1969 fp = fopen(script, "r");
1970 if (!fp) {
1971 sprintf(buf, "Can't open python script \"%s\"", script);
1972 perror(buf);
1973 err = -1;
1974 goto error;
1975 }
1976
1977 err = PyRun_SimpleFile(fp, script);
1978 if (err) {
1979 fprintf(stderr, "Error running python script %s\n", script);
1980 goto error;
1981 }
1982
1983 err = run_start_sub();
1984 if (err) {
1985 fprintf(stderr, "Error starting python script %s\n", script);
1986 goto error;
1987 }
1988
1989 set_table_handlers(tables);
1990
1991 if (tables->db_export_mode) {
1992 err = db_export__branch_types(&tables->dbe);
1993 if (err)
1994 goto error;
1995 }
1996
1997 _free_command_line(command_line, argc + 1);
1998
1999 return err;
2000 error:
2001 Py_Finalize();
2002 _free_command_line(command_line, argc + 1);
2003
2004 return err;
2005 }
2006
2007 static int python_flush_script(void)
2008 {
2009 return 0;
2010 }
2011
2012 /*
2013 * Stop trace script
2014 */
2015 static int python_stop_script(void)
2016 {
2017 struct tables *tables = &tables_global;
2018
2019 try_call_object("trace_end", NULL);
2020
2021 db_export__exit(&tables->dbe);
2022
2023 Py_XDECREF(main_dict);
2024 Py_XDECREF(main_module);
2025 Py_Finalize();
2026
2027 return 0;
2028 }
2029
2030 #ifdef HAVE_LIBTRACEEVENT
2031 static int python_generate_script(struct tep_handle *pevent, const char *outfile)
2032 {
2033 int i, not_first, count, nr_events;
2034 struct tep_event **all_events;
2035 struct tep_event *event = NULL;
2036 struct tep_format_field *f;
2037 char fname[PATH_MAX];
2038 FILE *ofp;
2039
2040 sprintf(fname, "%s.py", outfile);
2041 ofp = fopen(fname, "w");
2042 if (ofp == NULL) {
2043 fprintf(stderr, "couldn't open %s\n", fname);
2044 return -1;
2045 }
2046 fprintf(ofp, "# perf script event handlers, "
2047 "generated by perf script -g python\n");
2048
2049 fprintf(ofp, "# Licensed under the terms of the GNU GPL"
2050 " License version 2\n\n");
2051
2052 fprintf(ofp, "# The common_* event handler fields are the most useful "
2053 "fields common to\n");
2054
2055 fprintf(ofp, "# all events. They don't necessarily correspond to "
2056 "the 'common_*' fields\n");
2057
2058 fprintf(ofp, "# in the format files. Those fields not available as "
2059 "handler params can\n");
2060
2061 fprintf(ofp, "# be retrieved using Python functions of the form "
2062 "common_*(context).\n");
2063
2064 fprintf(ofp, "# See the perf-script-python Documentation for the list "
2065 "of available functions.\n\n");
2066
2067 fprintf(ofp, "from __future__ import print_function\n\n");
2068 fprintf(ofp, "import os\n");
2069 fprintf(ofp, "import sys\n\n");
2070
2071 fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n");
2072 fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n");
2073 fprintf(ofp, "\nfrom perf_trace_context import *\n");
2074 fprintf(ofp, "from Core import *\n\n\n");
2075
2076 fprintf(ofp, "def trace_begin():\n");
2077 fprintf(ofp, "\tprint(\"in trace_begin\")\n\n");
2078
2079 fprintf(ofp, "def trace_end():\n");
2080 fprintf(ofp, "\tprint(\"in trace_end\")\n\n");
2081
2082 nr_events = tep_get_events_count(pevent);
2083 all_events = tep_list_events(pevent, TEP_EVENT_SORT_ID);
2084
2085 for (i = 0; all_events && i < nr_events; i++) {
2086 event = all_events[i];
2087 fprintf(ofp, "def %s__%s(", event->system, event->name);
2088 fprintf(ofp, "event_name, ");
2089 fprintf(ofp, "context, ");
2090 fprintf(ofp, "common_cpu,\n");
2091 fprintf(ofp, "\tcommon_secs, ");
2092 fprintf(ofp, "common_nsecs, ");
2093 fprintf(ofp, "common_pid, ");
2094 fprintf(ofp, "common_comm,\n\t");
2095 fprintf(ofp, "common_callchain, ");
2096
2097 not_first = 0;
2098 count = 0;
2099
2100 for (f = event->format.fields; f; f = f->next) {
2101 if (not_first++)
2102 fprintf(ofp, ", ");
2103 if (++count % 5 == 0)
2104 fprintf(ofp, "\n\t");
2105
2106 fprintf(ofp, "%s", f->name);
2107 }
2108 if (not_first++)
2109 fprintf(ofp, ", ");
2110 if (++count % 5 == 0)
2111 fprintf(ofp, "\n\t\t");
2112 fprintf(ofp, "perf_sample_dict");
2113
2114 fprintf(ofp, "):\n");
2115
2116 fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
2117 "common_secs, common_nsecs,\n\t\t\t"
2118 "common_pid, common_comm)\n\n");
2119
2120 fprintf(ofp, "\t\tprint(\"");
2121
2122 not_first = 0;
2123 count = 0;
2124
2125 for (f = event->format.fields; f; f = f->next) {
2126 if (not_first++)
2127 fprintf(ofp, ", ");
2128 if (count && count % 3 == 0) {
2129 fprintf(ofp, "\" \\\n\t\t\"");
2130 }
2131 count++;
2132
2133 fprintf(ofp, "%s=", f->name);
2134 if (f->flags & TEP_FIELD_IS_STRING ||
2135 f->flags & TEP_FIELD_IS_FLAG ||
2136 f->flags & TEP_FIELD_IS_ARRAY ||
2137 f->flags & TEP_FIELD_IS_SYMBOLIC)
2138 fprintf(ofp, "%%s");
2139 else if (f->flags & TEP_FIELD_IS_SIGNED)
2140 fprintf(ofp, "%%d");
2141 else
2142 fprintf(ofp, "%%u");
2143 }
2144
2145 fprintf(ofp, "\" %% \\\n\t\t(");
2146
2147 not_first = 0;
2148 count = 0;
2149
2150 for (f = event->format.fields; f; f = f->next) {
2151 if (not_first++)
2152 fprintf(ofp, ", ");
2153
2154 if (++count % 5 == 0)
2155 fprintf(ofp, "\n\t\t");
2156
2157 if (f->flags & TEP_FIELD_IS_FLAG) {
2158 if ((count - 1) % 5 != 0) {
2159 fprintf(ofp, "\n\t\t");
2160 count = 4;
2161 }
2162 fprintf(ofp, "flag_str(\"");
2163 fprintf(ofp, "%s__%s\", ", event->system,
2164 event->name);
2165 fprintf(ofp, "\"%s\", %s)", f->name,
2166 f->name);
2167 } else if (f->flags & TEP_FIELD_IS_SYMBOLIC) {
2168 if ((count - 1) % 5 != 0) {
2169 fprintf(ofp, "\n\t\t");
2170 count = 4;
2171 }
2172 fprintf(ofp, "symbol_str(\"");
2173 fprintf(ofp, "%s__%s\", ", event->system,
2174 event->name);
2175 fprintf(ofp, "\"%s\", %s)", f->name,
2176 f->name);
2177 } else
2178 fprintf(ofp, "%s", f->name);
2179 }
2180
2181 fprintf(ofp, "))\n\n");
2182
2183 fprintf(ofp, "\t\tprint('Sample: {'+"
2184 "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n");
2185
2186 fprintf(ofp, "\t\tfor node in common_callchain:");
2187 fprintf(ofp, "\n\t\t\tif 'sym' in node:");
2188 fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x] %%s%%s%%s%%s\" %% (");
2189 fprintf(ofp, "\n\t\t\t\t\tnode['ip'], node['sym']['name'],");
2190 fprintf(ofp, "\n\t\t\t\t\t\"+0x{:x}\".format(node['sym_off']) if 'sym_off' in node else \"\",");
2191 fprintf(ofp, "\n\t\t\t\t\t\" ({})\".format(node['dso']) if 'dso' in node else \"\",");
2192 fprintf(ofp, "\n\t\t\t\t\t\" \" + node['sym_srcline'] if 'sym_srcline' in node else \"\"))");
2193 fprintf(ofp, "\n\t\t\telse:");
2194 fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x]\" %% (node['ip']))\n\n");
2195 fprintf(ofp, "\t\tprint()\n\n");
2196
2197 }
2198
2199 fprintf(ofp, "def trace_unhandled(event_name, context, "
2200 "event_fields_dict, perf_sample_dict):\n");
2201
2202 fprintf(ofp, "\t\tprint(get_dict_as_string(event_fields_dict))\n");
2203 fprintf(ofp, "\t\tprint('Sample: {'+"
2204 "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n");
2205
2206 fprintf(ofp, "def print_header("
2207 "event_name, cpu, secs, nsecs, pid, comm):\n"
2208 "\tprint(\"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t"
2209 "(event_name, cpu, secs, nsecs, pid, comm), end=\"\")\n\n");
2210
2211 fprintf(ofp, "def get_dict_as_string(a_dict, delimiter=' '):\n"
2212 "\treturn delimiter.join"
2213 "(['%%s=%%s'%%(k,str(v))for k,v in sorted(a_dict.items())])\n");
2214
2215 fclose(ofp);
2216
2217 fprintf(stderr, "generated Python script: %s\n", fname);
2218
2219 return 0;
2220 }
2221 #else
2222 static int python_generate_script(struct tep_handle *pevent __maybe_unused,
2223 const char *outfile __maybe_unused)
2224 {
2225 fprintf(stderr, "Generating Python perf-script is not supported."
2226 " Install libtraceevent and rebuild perf to enable it.\n"
2227 "For example:\n # apt install libtraceevent-dev (ubuntu)"
2228 "\n # yum install libtraceevent-devel (Fedora)"
2229 "\n etc.\n");
2230 return -1;
2231 }
2232 #endif
2233
2234 struct scripting_ops python_scripting_ops = {
2235 .name = "Python",
2236 .dirname = "python",
2237 .start_script = python_start_script,
2238 .flush_script = python_flush_script,
2239 .stop_script = python_stop_script,
2240 .process_event = python_process_event,
2241 .process_switch = python_process_switch,
2242 .process_auxtrace_error = python_process_auxtrace_error,
2243 .process_stat = python_process_stat,
2244 .process_stat_interval = python_process_stat_interval,
2245 .process_throttle = python_process_throttle,
2246 .generate_script = python_generate_script,
2247 };
Kernel DRM miscellaneous fixes and cross-tree changes