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7e4b21b8 TZ |
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 | ||
fd20e811 | 24 | #include <inttypes.h> |
7e4b21b8 TZ |
25 | #include <stdio.h> |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
df919b40 | 28 | #include <stdbool.h> |
7e4b21b8 | 29 | #include <errno.h> |
adf5bcf3 | 30 | #include <linux/bitmap.h> |
6c346643 | 31 | #include <linux/compiler.h> |
bd48c63e | 32 | #include <linux/time64.h> |
7e4b21b8 TZ |
33 | |
34 | #include "../../perf.h" | |
84f5d36f | 35 | #include "../debug.h" |
8f651eae | 36 | #include "../callchain.h" |
fcf65bf1 | 37 | #include "../evsel.h" |
7e4b21b8 | 38 | #include "../util.h" |
743eb868 ACM |
39 | #include "../event.h" |
40 | #include "../thread.h" | |
df919b40 AH |
41 | #include "../comm.h" |
42 | #include "../machine.h" | |
43 | #include "../db-export.h" | |
6a70307d | 44 | #include "../thread-stack.h" |
7e4b21b8 | 45 | #include "../trace-event.h" |
0f5f5bcd | 46 | #include "../machine.h" |
451db126 | 47 | #include "../call-path.h" |
aef90263 JO |
48 | #include "thread_map.h" |
49 | #include "cpumap.h" | |
fea01392 | 50 | #include "print_binary.h" |
aef90263 | 51 | #include "stat.h" |
7e4b21b8 TZ |
52 | |
53 | PyMODINIT_FUNC initperf_trace_context(void); | |
54 | ||
609a7404 | 55 | #define TRACE_EVENT_TYPE_MAX \ |
7e4b21b8 TZ |
56 | ((1 << (sizeof(unsigned short) * 8)) - 1) |
57 | ||
609a7404 | 58 | static DECLARE_BITMAP(events_defined, TRACE_EVENT_TYPE_MAX); |
7e4b21b8 TZ |
59 | |
60 | #define MAX_FIELDS 64 | |
61 | #define N_COMMON_FIELDS 7 | |
62 | ||
63 | extern struct scripting_context *scripting_context; | |
64 | ||
65 | static char *cur_field_name; | |
66 | static int zero_flag_atom; | |
67 | ||
68 | static PyObject *main_module, *main_dict; | |
69 | ||
df919b40 AH |
70 | struct tables { |
71 | struct db_export dbe; | |
72 | PyObject *evsel_handler; | |
73 | PyObject *machine_handler; | |
74 | PyObject *thread_handler; | |
75 | PyObject *comm_handler; | |
76 | PyObject *comm_thread_handler; | |
77 | PyObject *dso_handler; | |
78 | PyObject *symbol_handler; | |
c29414f5 | 79 | PyObject *branch_type_handler; |
df919b40 | 80 | PyObject *sample_handler; |
6a70307d AH |
81 | PyObject *call_path_handler; |
82 | PyObject *call_return_handler; | |
df919b40 AH |
83 | bool db_export_mode; |
84 | }; | |
85 | ||
86 | static struct tables tables_global; | |
87 | ||
6c346643 | 88 | static void handler_call_die(const char *handler_name) __noreturn; |
7e4b21b8 TZ |
89 | static void handler_call_die(const char *handler_name) |
90 | { | |
91 | PyErr_Print(); | |
92 | Py_FatalError("problem in Python trace event handler"); | |
05f832e3 JS |
93 | // Py_FatalError does not return |
94 | // but we have to make the compiler happy | |
95 | abort(); | |
7e4b21b8 TZ |
96 | } |
97 | ||
c0268e8d JS |
98 | /* |
99 | * Insert val into into the dictionary and decrement the reference counter. | |
48000a1a | 100 | * This is necessary for dictionaries since PyDict_SetItemString() does not |
c0268e8d JS |
101 | * steal a reference, as opposed to PyTuple_SetItem(). |
102 | */ | |
103 | static void pydict_set_item_string_decref(PyObject *dict, const char *key, PyObject *val) | |
104 | { | |
105 | PyDict_SetItemString(dict, key, val); | |
106 | Py_DECREF(val); | |
107 | } | |
108 | ||
a5563edf AH |
109 | static PyObject *get_handler(const char *handler_name) |
110 | { | |
111 | PyObject *handler; | |
112 | ||
113 | handler = PyDict_GetItemString(main_dict, handler_name); | |
114 | if (handler && !PyCallable_Check(handler)) | |
115 | return NULL; | |
116 | return handler; | |
117 | } | |
118 | ||
f38d2816 AK |
119 | static int get_argument_count(PyObject *handler) |
120 | { | |
121 | int arg_count = 0; | |
122 | ||
123 | /* | |
124 | * The attribute for the code object is func_code in Python 2, | |
125 | * whereas it is __code__ in Python 3.0+. | |
126 | */ | |
127 | PyObject *code_obj = PyObject_GetAttrString(handler, | |
128 | "func_code"); | |
129 | if (PyErr_Occurred()) { | |
130 | PyErr_Clear(); | |
131 | code_obj = PyObject_GetAttrString(handler, | |
132 | "__code__"); | |
133 | } | |
134 | PyErr_Clear(); | |
135 | if (code_obj) { | |
136 | PyObject *arg_count_obj = PyObject_GetAttrString(code_obj, | |
137 | "co_argcount"); | |
138 | if (arg_count_obj) { | |
139 | arg_count = (int) PyInt_AsLong(arg_count_obj); | |
140 | Py_DECREF(arg_count_obj); | |
141 | } | |
142 | Py_DECREF(code_obj); | |
143 | } | |
144 | return arg_count; | |
145 | } | |
146 | ||
a5563edf AH |
147 | static void call_object(PyObject *handler, PyObject *args, const char *die_msg) |
148 | { | |
149 | PyObject *retval; | |
150 | ||
151 | retval = PyObject_CallObject(handler, args); | |
152 | if (retval == NULL) | |
153 | handler_call_die(die_msg); | |
154 | Py_DECREF(retval); | |
155 | } | |
156 | ||
157 | static void try_call_object(const char *handler_name, PyObject *args) | |
158 | { | |
159 | PyObject *handler; | |
160 | ||
161 | handler = get_handler(handler_name); | |
162 | if (handler) | |
163 | call_object(handler, args, handler_name); | |
164 | } | |
165 | ||
7e4b21b8 TZ |
166 | static void define_value(enum print_arg_type field_type, |
167 | const char *ev_name, | |
168 | const char *field_name, | |
169 | const char *field_value, | |
170 | const char *field_str) | |
171 | { | |
172 | const char *handler_name = "define_flag_value"; | |
a5563edf | 173 | PyObject *t; |
7e4b21b8 TZ |
174 | unsigned long long value; |
175 | unsigned n = 0; | |
176 | ||
177 | if (field_type == PRINT_SYMBOL) | |
178 | handler_name = "define_symbolic_value"; | |
179 | ||
44ad9cd8 | 180 | t = PyTuple_New(4); |
7e4b21b8 TZ |
181 | if (!t) |
182 | Py_FatalError("couldn't create Python tuple"); | |
183 | ||
184 | value = eval_flag(field_value); | |
185 | ||
186 | PyTuple_SetItem(t, n++, PyString_FromString(ev_name)); | |
187 | PyTuple_SetItem(t, n++, PyString_FromString(field_name)); | |
188 | PyTuple_SetItem(t, n++, PyInt_FromLong(value)); | |
189 | PyTuple_SetItem(t, n++, PyString_FromString(field_str)); | |
190 | ||
a5563edf | 191 | try_call_object(handler_name, t); |
7e4b21b8 TZ |
192 | |
193 | Py_DECREF(t); | |
194 | } | |
195 | ||
196 | static void define_values(enum print_arg_type field_type, | |
197 | struct print_flag_sym *field, | |
198 | const char *ev_name, | |
199 | const char *field_name) | |
200 | { | |
201 | define_value(field_type, ev_name, field_name, field->value, | |
202 | field->str); | |
203 | ||
204 | if (field->next) | |
205 | define_values(field_type, field->next, ev_name, field_name); | |
206 | } | |
207 | ||
208 | static void define_field(enum print_arg_type field_type, | |
209 | const char *ev_name, | |
210 | const char *field_name, | |
211 | const char *delim) | |
212 | { | |
213 | const char *handler_name = "define_flag_field"; | |
a5563edf | 214 | PyObject *t; |
7e4b21b8 TZ |
215 | unsigned n = 0; |
216 | ||
217 | if (field_type == PRINT_SYMBOL) | |
218 | handler_name = "define_symbolic_field"; | |
219 | ||
44ad9cd8 TZ |
220 | if (field_type == PRINT_FLAGS) |
221 | t = PyTuple_New(3); | |
222 | else | |
223 | t = PyTuple_New(2); | |
7e4b21b8 TZ |
224 | if (!t) |
225 | Py_FatalError("couldn't create Python tuple"); | |
226 | ||
227 | PyTuple_SetItem(t, n++, PyString_FromString(ev_name)); | |
228 | PyTuple_SetItem(t, n++, PyString_FromString(field_name)); | |
229 | if (field_type == PRINT_FLAGS) | |
230 | PyTuple_SetItem(t, n++, PyString_FromString(delim)); | |
231 | ||
a5563edf | 232 | try_call_object(handler_name, t); |
7e4b21b8 TZ |
233 | |
234 | Py_DECREF(t); | |
235 | } | |
236 | ||
aaf045f7 | 237 | static void define_event_symbols(struct event_format *event, |
7e4b21b8 TZ |
238 | const char *ev_name, |
239 | struct print_arg *args) | |
240 | { | |
8579aca3 TS |
241 | if (args == NULL) |
242 | return; | |
243 | ||
7e4b21b8 TZ |
244 | switch (args->type) { |
245 | case PRINT_NULL: | |
246 | break; | |
247 | case PRINT_ATOM: | |
248 | define_value(PRINT_FLAGS, ev_name, cur_field_name, "0", | |
249 | args->atom.atom); | |
250 | zero_flag_atom = 0; | |
251 | break; | |
252 | case PRINT_FIELD: | |
f5385650 | 253 | free(cur_field_name); |
7e4b21b8 TZ |
254 | cur_field_name = strdup(args->field.name); |
255 | break; | |
256 | case PRINT_FLAGS: | |
257 | define_event_symbols(event, ev_name, args->flags.field); | |
258 | define_field(PRINT_FLAGS, ev_name, cur_field_name, | |
259 | args->flags.delim); | |
260 | define_values(PRINT_FLAGS, args->flags.flags, ev_name, | |
261 | cur_field_name); | |
262 | break; | |
263 | case PRINT_SYMBOL: | |
264 | define_event_symbols(event, ev_name, args->symbol.field); | |
265 | define_field(PRINT_SYMBOL, ev_name, cur_field_name, NULL); | |
266 | define_values(PRINT_SYMBOL, args->symbol.symbols, ev_name, | |
267 | cur_field_name); | |
268 | break; | |
e080e6f1 | 269 | case PRINT_HEX: |
0fe05591 | 270 | case PRINT_HEX_STR: |
e080e6f1 NK |
271 | define_event_symbols(event, ev_name, args->hex.field); |
272 | define_event_symbols(event, ev_name, args->hex.size); | |
273 | break; | |
b839e1e8 JM |
274 | case PRINT_INT_ARRAY: |
275 | define_event_symbols(event, ev_name, args->int_array.field); | |
276 | define_event_symbols(event, ev_name, args->int_array.count); | |
277 | define_event_symbols(event, ev_name, args->int_array.el_size); | |
278 | break; | |
7e4b21b8 TZ |
279 | case PRINT_STRING: |
280 | break; | |
281 | case PRINT_TYPE: | |
282 | define_event_symbols(event, ev_name, args->typecast.item); | |
283 | break; | |
284 | case PRINT_OP: | |
285 | if (strcmp(args->op.op, ":") == 0) | |
286 | zero_flag_atom = 1; | |
287 | define_event_symbols(event, ev_name, args->op.left); | |
288 | define_event_symbols(event, ev_name, args->op.right); | |
289 | break; | |
290 | default: | |
aaf045f7 SR |
291 | /* gcc warns for these? */ |
292 | case PRINT_BSTRING: | |
293 | case PRINT_DYNAMIC_ARRAY: | |
76055940 | 294 | case PRINT_DYNAMIC_ARRAY_LEN: |
aaf045f7 | 295 | case PRINT_FUNC: |
473a778a | 296 | case PRINT_BITMASK: |
7e4b21b8 TZ |
297 | /* we should warn... */ |
298 | return; | |
299 | } | |
300 | ||
301 | if (args->next) | |
302 | define_event_symbols(event, ev_name, args->next); | |
303 | } | |
304 | ||
33058b94 SAS |
305 | static PyObject *get_field_numeric_entry(struct event_format *event, |
306 | struct format_field *field, void *data) | |
307 | { | |
8ac631cd | 308 | bool is_array = field->flags & FIELD_IS_ARRAY; |
39f54862 | 309 | PyObject *obj = NULL, *list = NULL; |
33058b94 | 310 | unsigned long long val; |
8ac631cd | 311 | unsigned int item_size, n_items, i; |
33058b94 | 312 | |
8ac631cd SAS |
313 | if (is_array) { |
314 | list = PyList_New(field->arraylen); | |
315 | item_size = field->size / field->arraylen; | |
316 | n_items = field->arraylen; | |
33058b94 | 317 | } else { |
8ac631cd SAS |
318 | item_size = field->size; |
319 | n_items = 1; | |
33058b94 | 320 | } |
8ac631cd SAS |
321 | |
322 | for (i = 0; i < n_items; i++) { | |
323 | ||
324 | val = read_size(event, data + field->offset + i * item_size, | |
325 | item_size); | |
326 | if (field->flags & FIELD_IS_SIGNED) { | |
327 | if ((long long)val >= LONG_MIN && | |
328 | (long long)val <= LONG_MAX) | |
329 | obj = PyInt_FromLong(val); | |
330 | else | |
331 | obj = PyLong_FromLongLong(val); | |
332 | } else { | |
333 | if (val <= LONG_MAX) | |
334 | obj = PyInt_FromLong(val); | |
335 | else | |
336 | obj = PyLong_FromUnsignedLongLong(val); | |
337 | } | |
338 | if (is_array) | |
339 | PyList_SET_ITEM(list, i, obj); | |
340 | } | |
341 | if (is_array) | |
342 | obj = list; | |
33058b94 SAS |
343 | return obj; |
344 | } | |
345 | ||
0f5f5bcd JS |
346 | |
347 | static PyObject *python_process_callchain(struct perf_sample *sample, | |
348 | struct perf_evsel *evsel, | |
349 | struct addr_location *al) | |
350 | { | |
351 | PyObject *pylist; | |
352 | ||
353 | pylist = PyList_New(0); | |
354 | if (!pylist) | |
355 | Py_FatalError("couldn't create Python list"); | |
356 | ||
357 | if (!symbol_conf.use_callchain || !sample->callchain) | |
358 | goto exit; | |
359 | ||
91d7b2de | 360 | if (thread__resolve_callchain(al->thread, &callchain_cursor, evsel, |
cc8b7c2b | 361 | sample, NULL, NULL, |
44cbe729 | 362 | scripting_max_stack) != 0) { |
0f5f5bcd JS |
363 | pr_err("Failed to resolve callchain. Skipping\n"); |
364 | goto exit; | |
365 | } | |
366 | callchain_cursor_commit(&callchain_cursor); | |
367 | ||
368 | ||
369 | while (1) { | |
370 | PyObject *pyelem; | |
371 | struct callchain_cursor_node *node; | |
372 | node = callchain_cursor_current(&callchain_cursor); | |
373 | if (!node) | |
374 | break; | |
375 | ||
376 | pyelem = PyDict_New(); | |
377 | if (!pyelem) | |
378 | Py_FatalError("couldn't create Python dictionary"); | |
379 | ||
380 | ||
381 | pydict_set_item_string_decref(pyelem, "ip", | |
382 | PyLong_FromUnsignedLongLong(node->ip)); | |
383 | ||
384 | if (node->sym) { | |
385 | PyObject *pysym = PyDict_New(); | |
386 | if (!pysym) | |
387 | Py_FatalError("couldn't create Python dictionary"); | |
388 | pydict_set_item_string_decref(pysym, "start", | |
389 | PyLong_FromUnsignedLongLong(node->sym->start)); | |
390 | pydict_set_item_string_decref(pysym, "end", | |
391 | PyLong_FromUnsignedLongLong(node->sym->end)); | |
392 | pydict_set_item_string_decref(pysym, "binding", | |
393 | PyInt_FromLong(node->sym->binding)); | |
394 | pydict_set_item_string_decref(pysym, "name", | |
395 | PyString_FromStringAndSize(node->sym->name, | |
396 | node->sym->namelen)); | |
397 | pydict_set_item_string_decref(pyelem, "sym", pysym); | |
398 | } | |
399 | ||
400 | if (node->map) { | |
401 | struct map *map = node->map; | |
402 | const char *dsoname = "[unknown]"; | |
8bd8c653 | 403 | if (map && map->dso) { |
0f5f5bcd JS |
404 | if (symbol_conf.show_kernel_path && map->dso->long_name) |
405 | dsoname = map->dso->long_name; | |
8bd8c653 | 406 | else |
0f5f5bcd JS |
407 | dsoname = map->dso->name; |
408 | } | |
409 | pydict_set_item_string_decref(pyelem, "dso", | |
410 | PyString_FromString(dsoname)); | |
411 | } | |
412 | ||
413 | callchain_cursor_advance(&callchain_cursor); | |
414 | PyList_Append(pylist, pyelem); | |
415 | Py_DECREF(pyelem); | |
416 | } | |
417 | ||
418 | exit: | |
419 | return pylist; | |
420 | } | |
421 | ||
74ec14f3 AK |
422 | static PyObject *get_sample_value_as_tuple(struct sample_read_value *value) |
423 | { | |
424 | PyObject *t; | |
425 | ||
426 | t = PyTuple_New(2); | |
427 | if (!t) | |
428 | Py_FatalError("couldn't create Python tuple"); | |
429 | PyTuple_SetItem(t, 0, PyLong_FromUnsignedLongLong(value->id)); | |
430 | PyTuple_SetItem(t, 1, PyLong_FromUnsignedLongLong(value->value)); | |
431 | return t; | |
432 | } | |
433 | ||
434 | static void set_sample_read_in_dict(PyObject *dict_sample, | |
435 | struct perf_sample *sample, | |
436 | struct perf_evsel *evsel) | |
437 | { | |
438 | u64 read_format = evsel->attr.read_format; | |
439 | PyObject *values; | |
440 | unsigned int i; | |
441 | ||
442 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { | |
443 | pydict_set_item_string_decref(dict_sample, "time_enabled", | |
444 | PyLong_FromUnsignedLongLong(sample->read.time_enabled)); | |
445 | } | |
446 | ||
447 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { | |
448 | pydict_set_item_string_decref(dict_sample, "time_running", | |
449 | PyLong_FromUnsignedLongLong(sample->read.time_running)); | |
450 | } | |
451 | ||
452 | if (read_format & PERF_FORMAT_GROUP) | |
453 | values = PyList_New(sample->read.group.nr); | |
454 | else | |
455 | values = PyList_New(1); | |
456 | ||
457 | if (!values) | |
458 | Py_FatalError("couldn't create Python list"); | |
459 | ||
460 | if (read_format & PERF_FORMAT_GROUP) { | |
461 | for (i = 0; i < sample->read.group.nr; i++) { | |
462 | PyObject *t = get_sample_value_as_tuple(&sample->read.group.values[i]); | |
463 | PyList_SET_ITEM(values, i, t); | |
464 | } | |
465 | } else { | |
466 | PyObject *t = get_sample_value_as_tuple(&sample->read.one); | |
467 | PyList_SET_ITEM(values, 0, t); | |
468 | } | |
469 | pydict_set_item_string_decref(dict_sample, "values", values); | |
470 | } | |
471 | ||
892e76b2 AK |
472 | static PyObject *get_perf_sample_dict(struct perf_sample *sample, |
473 | struct perf_evsel *evsel, | |
474 | struct addr_location *al, | |
475 | PyObject *callchain) | |
476 | { | |
477 | PyObject *dict, *dict_sample; | |
478 | ||
479 | dict = PyDict_New(); | |
480 | if (!dict) | |
481 | Py_FatalError("couldn't create Python dictionary"); | |
482 | ||
483 | dict_sample = PyDict_New(); | |
484 | if (!dict_sample) | |
485 | Py_FatalError("couldn't create Python dictionary"); | |
486 | ||
487 | pydict_set_item_string_decref(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel))); | |
488 | pydict_set_item_string_decref(dict, "attr", PyString_FromStringAndSize( | |
489 | (const char *)&evsel->attr, sizeof(evsel->attr))); | |
490 | ||
491 | pydict_set_item_string_decref(dict_sample, "pid", | |
492 | PyInt_FromLong(sample->pid)); | |
493 | pydict_set_item_string_decref(dict_sample, "tid", | |
494 | PyInt_FromLong(sample->tid)); | |
495 | pydict_set_item_string_decref(dict_sample, "cpu", | |
496 | PyInt_FromLong(sample->cpu)); | |
497 | pydict_set_item_string_decref(dict_sample, "ip", | |
498 | PyLong_FromUnsignedLongLong(sample->ip)); | |
499 | pydict_set_item_string_decref(dict_sample, "time", | |
500 | PyLong_FromUnsignedLongLong(sample->time)); | |
501 | pydict_set_item_string_decref(dict_sample, "period", | |
502 | PyLong_FromUnsignedLongLong(sample->period)); | |
74ec14f3 | 503 | set_sample_read_in_dict(dict_sample, sample, evsel); |
892e76b2 AK |
504 | pydict_set_item_string_decref(dict, "sample", dict_sample); |
505 | ||
506 | pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize( | |
507 | (const char *)sample->raw_data, sample->raw_size)); | |
508 | pydict_set_item_string_decref(dict, "comm", | |
509 | PyString_FromString(thread__comm_str(al->thread))); | |
510 | if (al->map) { | |
511 | pydict_set_item_string_decref(dict, "dso", | |
512 | PyString_FromString(al->map->dso->name)); | |
513 | } | |
514 | if (al->sym) { | |
515 | pydict_set_item_string_decref(dict, "symbol", | |
516 | PyString_FromString(al->sym->name)); | |
517 | } | |
518 | ||
519 | pydict_set_item_string_decref(dict, "callchain", callchain); | |
520 | ||
521 | return dict; | |
522 | } | |
523 | ||
b7fff6b5 ACM |
524 | static void python_process_tracepoint(struct perf_sample *sample, |
525 | struct perf_evsel *evsel, | |
b7fff6b5 | 526 | struct addr_location *al) |
7e4b21b8 | 527 | { |
adf5bcf3 | 528 | struct event_format *event = evsel->tp_format; |
39f54862 | 529 | PyObject *handler, *context, *t, *obj = NULL, *callchain; |
f38d2816 | 530 | PyObject *dict = NULL, *all_entries_dict = NULL; |
7e4b21b8 TZ |
531 | static char handler_name[256]; |
532 | struct format_field *field; | |
7e4b21b8 | 533 | unsigned long s, ns; |
7e4b21b8 | 534 | unsigned n = 0; |
7e4b21b8 | 535 | int pid; |
be6d842a DA |
536 | int cpu = sample->cpu; |
537 | void *data = sample->raw_data; | |
538 | unsigned long long nsecs = sample->time; | |
f9d5d549 | 539 | const char *comm = thread__comm_str(al->thread); |
e9f9a9ca | 540 | const char *default_handler_name = "trace_unhandled"; |
7e4b21b8 | 541 | |
62665dff ACM |
542 | if (!event) { |
543 | snprintf(handler_name, sizeof(handler_name), | |
544 | "ug! no event found for type %" PRIu64, (u64)evsel->attr.config); | |
545 | Py_FatalError(handler_name); | |
546 | } | |
7e4b21b8 | 547 | |
97822433 | 548 | pid = raw_field_value(event, "common_pid", data); |
7e4b21b8 TZ |
549 | |
550 | sprintf(handler_name, "%s__%s", event->system, event->name); | |
551 | ||
adf5bcf3 JO |
552 | if (!test_and_set_bit(event->id, events_defined)) |
553 | define_event_symbols(event, handler_name, event->print_fmt.args); | |
554 | ||
a5563edf | 555 | handler = get_handler(handler_name); |
c0251485 | 556 | if (!handler) { |
e9f9a9ca AK |
557 | handler = get_handler(default_handler_name); |
558 | if (!handler) | |
559 | return; | |
c0251485 PT |
560 | dict = PyDict_New(); |
561 | if (!dict) | |
562 | Py_FatalError("couldn't create Python dict"); | |
563 | } | |
e9f9a9ca AK |
564 | |
565 | t = PyTuple_New(MAX_FIELDS); | |
566 | if (!t) | |
567 | Py_FatalError("couldn't create Python tuple"); | |
568 | ||
569 | ||
bd48c63e ACM |
570 | s = nsecs / NSEC_PER_SEC; |
571 | ns = nsecs - s * NSEC_PER_SEC; | |
7e4b21b8 TZ |
572 | |
573 | scripting_context->event_data = data; | |
2de9533d | 574 | scripting_context->pevent = evsel->tp_format->pevent; |
7e4b21b8 TZ |
575 | |
576 | context = PyCObject_FromVoidPtr(scripting_context, NULL); | |
577 | ||
578 | PyTuple_SetItem(t, n++, PyString_FromString(handler_name)); | |
fb7d0b3c | 579 | PyTuple_SetItem(t, n++, context); |
7e4b21b8 | 580 | |
0f5f5bcd JS |
581 | /* ip unwinding */ |
582 | callchain = python_process_callchain(sample, evsel, al); | |
f38d2816 AK |
583 | /* Need an additional reference for the perf_sample dict */ |
584 | Py_INCREF(callchain); | |
0f5f5bcd | 585 | |
e9f9a9ca | 586 | if (!dict) { |
c0251485 PT |
587 | PyTuple_SetItem(t, n++, PyInt_FromLong(cpu)); |
588 | PyTuple_SetItem(t, n++, PyInt_FromLong(s)); | |
589 | PyTuple_SetItem(t, n++, PyInt_FromLong(ns)); | |
590 | PyTuple_SetItem(t, n++, PyInt_FromLong(pid)); | |
591 | PyTuple_SetItem(t, n++, PyString_FromString(comm)); | |
0f5f5bcd | 592 | PyTuple_SetItem(t, n++, callchain); |
c0251485 | 593 | } else { |
c0268e8d JS |
594 | pydict_set_item_string_decref(dict, "common_cpu", PyInt_FromLong(cpu)); |
595 | pydict_set_item_string_decref(dict, "common_s", PyInt_FromLong(s)); | |
596 | pydict_set_item_string_decref(dict, "common_ns", PyInt_FromLong(ns)); | |
597 | pydict_set_item_string_decref(dict, "common_pid", PyInt_FromLong(pid)); | |
598 | pydict_set_item_string_decref(dict, "common_comm", PyString_FromString(comm)); | |
0f5f5bcd | 599 | pydict_set_item_string_decref(dict, "common_callchain", callchain); |
c0251485 | 600 | } |
7e4b21b8 | 601 | for (field = event->format.fields; field; field = field->next) { |
249de6e0 JO |
602 | unsigned int offset, len; |
603 | unsigned long long val; | |
604 | ||
605 | if (field->flags & FIELD_IS_ARRAY) { | |
606 | offset = field->offset; | |
607 | len = field->size; | |
7e4b21b8 | 608 | if (field->flags & FIELD_IS_DYNAMIC) { |
249de6e0 JO |
609 | val = pevent_read_number(scripting_context->pevent, |
610 | data + offset, len); | |
611 | offset = val; | |
612 | len = offset >> 16; | |
7e4b21b8 | 613 | offset &= 0xffff; |
249de6e0 JO |
614 | } |
615 | if (field->flags & FIELD_IS_STRING && | |
616 | is_printable_array(data + offset, len)) { | |
617 | obj = PyString_FromString((char *) data + offset); | |
618 | } else { | |
619 | obj = PyByteArray_FromStringAndSize((const char *) data + offset, len); | |
620 | field->flags &= ~FIELD_IS_STRING; | |
621 | } | |
7e4b21b8 | 622 | } else { /* FIELD_IS_NUMERIC */ |
33058b94 | 623 | obj = get_field_numeric_entry(event, field, data); |
7e4b21b8 | 624 | } |
e9f9a9ca | 625 | if (!dict) |
c0251485 PT |
626 | PyTuple_SetItem(t, n++, obj); |
627 | else | |
c0268e8d | 628 | pydict_set_item_string_decref(dict, field->name, obj); |
c0251485 | 629 | |
7e4b21b8 | 630 | } |
0f5f5bcd | 631 | |
e9f9a9ca | 632 | if (dict) |
c0251485 | 633 | PyTuple_SetItem(t, n++, dict); |
7e4b21b8 | 634 | |
f38d2816 AK |
635 | if (get_argument_count(handler) == (int) n + 1) { |
636 | all_entries_dict = get_perf_sample_dict(sample, evsel, al, | |
637 | callchain); | |
638 | PyTuple_SetItem(t, n++, all_entries_dict); | |
639 | } else { | |
640 | Py_DECREF(callchain); | |
641 | } | |
642 | ||
7e4b21b8 TZ |
643 | if (_PyTuple_Resize(&t, n) == -1) |
644 | Py_FatalError("error resizing Python tuple"); | |
645 | ||
e9f9a9ca | 646 | if (!dict) { |
a5563edf | 647 | call_object(handler, t, handler_name); |
7e4b21b8 | 648 | } else { |
e9f9a9ca | 649 | call_object(handler, t, default_handler_name); |
c0251485 | 650 | Py_DECREF(dict); |
7e4b21b8 TZ |
651 | } |
652 | ||
f38d2816 | 653 | Py_XDECREF(all_entries_dict); |
7e4b21b8 TZ |
654 | Py_DECREF(t); |
655 | } | |
656 | ||
df919b40 AH |
657 | static PyObject *tuple_new(unsigned int sz) |
658 | { | |
659 | PyObject *t; | |
660 | ||
661 | t = PyTuple_New(sz); | |
662 | if (!t) | |
663 | Py_FatalError("couldn't create Python tuple"); | |
664 | return t; | |
665 | } | |
666 | ||
667 | static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val) | |
668 | { | |
669 | #if BITS_PER_LONG == 64 | |
670 | return PyTuple_SetItem(t, pos, PyInt_FromLong(val)); | |
671 | #endif | |
672 | #if BITS_PER_LONG == 32 | |
673 | return PyTuple_SetItem(t, pos, PyLong_FromLongLong(val)); | |
674 | #endif | |
675 | } | |
676 | ||
677 | static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val) | |
678 | { | |
679 | return PyTuple_SetItem(t, pos, PyInt_FromLong(val)); | |
680 | } | |
681 | ||
682 | static int tuple_set_string(PyObject *t, unsigned int pos, const char *s) | |
683 | { | |
684 | return PyTuple_SetItem(t, pos, PyString_FromString(s)); | |
685 | } | |
686 | ||
687 | static int python_export_evsel(struct db_export *dbe, struct perf_evsel *evsel) | |
688 | { | |
689 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
690 | PyObject *t; | |
691 | ||
692 | t = tuple_new(2); | |
693 | ||
694 | tuple_set_u64(t, 0, evsel->db_id); | |
695 | tuple_set_string(t, 1, perf_evsel__name(evsel)); | |
696 | ||
697 | call_object(tables->evsel_handler, t, "evsel_table"); | |
698 | ||
699 | Py_DECREF(t); | |
700 | ||
701 | return 0; | |
702 | } | |
703 | ||
704 | static int python_export_machine(struct db_export *dbe, | |
705 | struct machine *machine) | |
706 | { | |
707 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
708 | PyObject *t; | |
709 | ||
710 | t = tuple_new(3); | |
711 | ||
712 | tuple_set_u64(t, 0, machine->db_id); | |
713 | tuple_set_s32(t, 1, machine->pid); | |
714 | tuple_set_string(t, 2, machine->root_dir ? machine->root_dir : ""); | |
715 | ||
716 | call_object(tables->machine_handler, t, "machine_table"); | |
717 | ||
718 | Py_DECREF(t); | |
719 | ||
720 | return 0; | |
721 | } | |
722 | ||
723 | static int python_export_thread(struct db_export *dbe, struct thread *thread, | |
724 | u64 main_thread_db_id, struct machine *machine) | |
725 | { | |
726 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
727 | PyObject *t; | |
728 | ||
729 | t = tuple_new(5); | |
730 | ||
731 | tuple_set_u64(t, 0, thread->db_id); | |
732 | tuple_set_u64(t, 1, machine->db_id); | |
733 | tuple_set_u64(t, 2, main_thread_db_id); | |
734 | tuple_set_s32(t, 3, thread->pid_); | |
735 | tuple_set_s32(t, 4, thread->tid); | |
736 | ||
737 | call_object(tables->thread_handler, t, "thread_table"); | |
738 | ||
739 | Py_DECREF(t); | |
740 | ||
741 | return 0; | |
742 | } | |
743 | ||
744 | static int python_export_comm(struct db_export *dbe, struct comm *comm) | |
745 | { | |
746 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
747 | PyObject *t; | |
748 | ||
749 | t = tuple_new(2); | |
750 | ||
751 | tuple_set_u64(t, 0, comm->db_id); | |
752 | tuple_set_string(t, 1, comm__str(comm)); | |
753 | ||
754 | call_object(tables->comm_handler, t, "comm_table"); | |
755 | ||
756 | Py_DECREF(t); | |
757 | ||
758 | return 0; | |
759 | } | |
760 | ||
761 | static int python_export_comm_thread(struct db_export *dbe, u64 db_id, | |
762 | struct comm *comm, struct thread *thread) | |
763 | { | |
764 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
765 | PyObject *t; | |
766 | ||
767 | t = tuple_new(3); | |
768 | ||
769 | tuple_set_u64(t, 0, db_id); | |
770 | tuple_set_u64(t, 1, comm->db_id); | |
771 | tuple_set_u64(t, 2, thread->db_id); | |
772 | ||
773 | call_object(tables->comm_thread_handler, t, "comm_thread_table"); | |
774 | ||
775 | Py_DECREF(t); | |
776 | ||
777 | return 0; | |
778 | } | |
779 | ||
780 | static int python_export_dso(struct db_export *dbe, struct dso *dso, | |
781 | struct machine *machine) | |
782 | { | |
783 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
b5d8bbe8 | 784 | char sbuild_id[SBUILD_ID_SIZE]; |
df919b40 AH |
785 | PyObject *t; |
786 | ||
787 | build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id); | |
788 | ||
789 | t = tuple_new(5); | |
790 | ||
791 | tuple_set_u64(t, 0, dso->db_id); | |
792 | tuple_set_u64(t, 1, machine->db_id); | |
793 | tuple_set_string(t, 2, dso->short_name); | |
794 | tuple_set_string(t, 3, dso->long_name); | |
795 | tuple_set_string(t, 4, sbuild_id); | |
796 | ||
797 | call_object(tables->dso_handler, t, "dso_table"); | |
798 | ||
799 | Py_DECREF(t); | |
800 | ||
801 | return 0; | |
802 | } | |
803 | ||
804 | static int python_export_symbol(struct db_export *dbe, struct symbol *sym, | |
805 | struct dso *dso) | |
806 | { | |
807 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
808 | u64 *sym_db_id = symbol__priv(sym); | |
809 | PyObject *t; | |
810 | ||
811 | t = tuple_new(6); | |
812 | ||
813 | tuple_set_u64(t, 0, *sym_db_id); | |
814 | tuple_set_u64(t, 1, dso->db_id); | |
815 | tuple_set_u64(t, 2, sym->start); | |
816 | tuple_set_u64(t, 3, sym->end); | |
817 | tuple_set_s32(t, 4, sym->binding); | |
818 | tuple_set_string(t, 5, sym->name); | |
819 | ||
820 | call_object(tables->symbol_handler, t, "symbol_table"); | |
821 | ||
822 | Py_DECREF(t); | |
823 | ||
824 | return 0; | |
825 | } | |
826 | ||
c29414f5 AH |
827 | static int python_export_branch_type(struct db_export *dbe, u32 branch_type, |
828 | const char *name) | |
829 | { | |
830 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
831 | PyObject *t; | |
832 | ||
833 | t = tuple_new(2); | |
834 | ||
835 | tuple_set_s32(t, 0, branch_type); | |
836 | tuple_set_string(t, 1, name); | |
837 | ||
838 | call_object(tables->branch_type_handler, t, "branch_type_table"); | |
839 | ||
840 | Py_DECREF(t); | |
841 | ||
842 | return 0; | |
843 | } | |
844 | ||
df919b40 AH |
845 | static int python_export_sample(struct db_export *dbe, |
846 | struct export_sample *es) | |
847 | { | |
848 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
849 | PyObject *t; | |
850 | ||
2c15f5eb | 851 | t = tuple_new(22); |
df919b40 AH |
852 | |
853 | tuple_set_u64(t, 0, es->db_id); | |
854 | tuple_set_u64(t, 1, es->evsel->db_id); | |
855 | tuple_set_u64(t, 2, es->al->machine->db_id); | |
b83e868d | 856 | tuple_set_u64(t, 3, es->al->thread->db_id); |
df919b40 AH |
857 | tuple_set_u64(t, 4, es->comm_db_id); |
858 | tuple_set_u64(t, 5, es->dso_db_id); | |
859 | tuple_set_u64(t, 6, es->sym_db_id); | |
860 | tuple_set_u64(t, 7, es->offset); | |
861 | tuple_set_u64(t, 8, es->sample->ip); | |
862 | tuple_set_u64(t, 9, es->sample->time); | |
863 | tuple_set_s32(t, 10, es->sample->cpu); | |
864 | tuple_set_u64(t, 11, es->addr_dso_db_id); | |
865 | tuple_set_u64(t, 12, es->addr_sym_db_id); | |
866 | tuple_set_u64(t, 13, es->addr_offset); | |
867 | tuple_set_u64(t, 14, es->sample->addr); | |
868 | tuple_set_u64(t, 15, es->sample->period); | |
869 | tuple_set_u64(t, 16, es->sample->weight); | |
870 | tuple_set_u64(t, 17, es->sample->transaction); | |
871 | tuple_set_u64(t, 18, es->sample->data_src); | |
c29414f5 AH |
872 | tuple_set_s32(t, 19, es->sample->flags & PERF_BRANCH_MASK); |
873 | tuple_set_s32(t, 20, !!(es->sample->flags & PERF_IP_FLAG_IN_TX)); | |
2c15f5eb | 874 | tuple_set_u64(t, 21, es->call_path_id); |
df919b40 AH |
875 | |
876 | call_object(tables->sample_handler, t, "sample_table"); | |
877 | ||
878 | Py_DECREF(t); | |
879 | ||
880 | return 0; | |
881 | } | |
882 | ||
6a70307d AH |
883 | static int python_export_call_path(struct db_export *dbe, struct call_path *cp) |
884 | { | |
885 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
886 | PyObject *t; | |
887 | u64 parent_db_id, sym_db_id; | |
888 | ||
889 | parent_db_id = cp->parent ? cp->parent->db_id : 0; | |
890 | sym_db_id = cp->sym ? *(u64 *)symbol__priv(cp->sym) : 0; | |
891 | ||
892 | t = tuple_new(4); | |
893 | ||
894 | tuple_set_u64(t, 0, cp->db_id); | |
895 | tuple_set_u64(t, 1, parent_db_id); | |
896 | tuple_set_u64(t, 2, sym_db_id); | |
897 | tuple_set_u64(t, 3, cp->ip); | |
898 | ||
899 | call_object(tables->call_path_handler, t, "call_path_table"); | |
900 | ||
901 | Py_DECREF(t); | |
902 | ||
903 | return 0; | |
904 | } | |
905 | ||
906 | static int python_export_call_return(struct db_export *dbe, | |
907 | struct call_return *cr) | |
908 | { | |
909 | struct tables *tables = container_of(dbe, struct tables, dbe); | |
910 | u64 comm_db_id = cr->comm ? cr->comm->db_id : 0; | |
911 | PyObject *t; | |
912 | ||
913 | t = tuple_new(11); | |
914 | ||
915 | tuple_set_u64(t, 0, cr->db_id); | |
916 | tuple_set_u64(t, 1, cr->thread->db_id); | |
917 | tuple_set_u64(t, 2, comm_db_id); | |
918 | tuple_set_u64(t, 3, cr->cp->db_id); | |
919 | tuple_set_u64(t, 4, cr->call_time); | |
920 | tuple_set_u64(t, 5, cr->return_time); | |
921 | tuple_set_u64(t, 6, cr->branch_count); | |
922 | tuple_set_u64(t, 7, cr->call_ref); | |
923 | tuple_set_u64(t, 8, cr->return_ref); | |
924 | tuple_set_u64(t, 9, cr->cp->parent->db_id); | |
925 | tuple_set_s32(t, 10, cr->flags); | |
926 | ||
927 | call_object(tables->call_return_handler, t, "call_return_table"); | |
928 | ||
929 | Py_DECREF(t); | |
930 | ||
931 | return 0; | |
932 | } | |
933 | ||
934 | static int python_process_call_return(struct call_return *cr, void *data) | |
935 | { | |
936 | struct db_export *dbe = data; | |
937 | ||
938 | return db_export__call_return(dbe, cr); | |
939 | } | |
940 | ||
b7fff6b5 | 941 | static void python_process_general_event(struct perf_sample *sample, |
6a6daec2 | 942 | struct perf_evsel *evsel, |
87b6a3ad | 943 | struct addr_location *al) |
6a6daec2 | 944 | { |
892e76b2 | 945 | PyObject *handler, *t, *dict, *callchain; |
6a6daec2 FT |
946 | static char handler_name[64]; |
947 | unsigned n = 0; | |
6a6daec2 | 948 | |
e9f9a9ca AK |
949 | snprintf(handler_name, sizeof(handler_name), "%s", "process_event"); |
950 | ||
951 | handler = get_handler(handler_name); | |
952 | if (!handler) | |
953 | return; | |
954 | ||
fd6b858a FT |
955 | /* |
956 | * Use the MAX_FIELDS to make the function expandable, though | |
87b6a3ad | 957 | * currently there is only one item for the tuple. |
fd6b858a | 958 | */ |
6a6daec2 FT |
959 | t = PyTuple_New(MAX_FIELDS); |
960 | if (!t) | |
961 | Py_FatalError("couldn't create Python tuple"); | |
962 | ||
0f5f5bcd JS |
963 | /* ip unwinding */ |
964 | callchain = python_process_callchain(sample, evsel, al); | |
892e76b2 | 965 | dict = get_perf_sample_dict(sample, evsel, al, callchain); |
0f5f5bcd | 966 | |
fd6b858a | 967 | PyTuple_SetItem(t, n++, dict); |
6a6daec2 FT |
968 | if (_PyTuple_Resize(&t, n) == -1) |
969 | Py_FatalError("error resizing Python tuple"); | |
970 | ||
a5563edf | 971 | call_object(handler, t, handler_name); |
e9f9a9ca | 972 | |
fd6b858a | 973 | Py_DECREF(dict); |
6a6daec2 FT |
974 | Py_DECREF(t); |
975 | } | |
976 | ||
df919b40 | 977 | static void python_process_event(union perf_event *event, |
6a6daec2 FT |
978 | struct perf_sample *sample, |
979 | struct perf_evsel *evsel, | |
73994dc1 | 980 | struct addr_location *al) |
6a6daec2 | 981 | { |
df919b40 AH |
982 | struct tables *tables = &tables_global; |
983 | ||
6a6daec2 FT |
984 | switch (evsel->attr.type) { |
985 | case PERF_TYPE_TRACEPOINT: | |
f9d5d549 | 986 | python_process_tracepoint(sample, evsel, al); |
6a6daec2 FT |
987 | break; |
988 | /* Reserve for future process_hw/sw/raw APIs */ | |
989 | default: | |
df919b40 | 990 | if (tables->db_export_mode) |
7327259d | 991 | db_export__sample(&tables->dbe, event, sample, evsel, al); |
df919b40 | 992 | else |
f9d5d549 | 993 | python_process_general_event(sample, evsel, al); |
6a6daec2 FT |
994 | } |
995 | } | |
996 | ||
aef90263 JO |
997 | static void get_handler_name(char *str, size_t size, |
998 | struct perf_evsel *evsel) | |
999 | { | |
1000 | char *p = str; | |
1001 | ||
1002 | scnprintf(str, size, "stat__%s", perf_evsel__name(evsel)); | |
1003 | ||
1004 | while ((p = strchr(p, ':'))) { | |
1005 | *p = '_'; | |
1006 | p++; | |
1007 | } | |
1008 | } | |
1009 | ||
1010 | static void | |
1011 | process_stat(struct perf_evsel *counter, int cpu, int thread, u64 tstamp, | |
1012 | struct perf_counts_values *count) | |
1013 | { | |
1014 | PyObject *handler, *t; | |
1015 | static char handler_name[256]; | |
1016 | int n = 0; | |
1017 | ||
1018 | t = PyTuple_New(MAX_FIELDS); | |
1019 | if (!t) | |
1020 | Py_FatalError("couldn't create Python tuple"); | |
1021 | ||
1022 | get_handler_name(handler_name, sizeof(handler_name), | |
1023 | counter); | |
1024 | ||
1025 | handler = get_handler(handler_name); | |
1026 | if (!handler) { | |
1027 | pr_debug("can't find python handler %s\n", handler_name); | |
1028 | return; | |
1029 | } | |
1030 | ||
1031 | PyTuple_SetItem(t, n++, PyInt_FromLong(cpu)); | |
1032 | PyTuple_SetItem(t, n++, PyInt_FromLong(thread)); | |
1033 | ||
1034 | tuple_set_u64(t, n++, tstamp); | |
1035 | tuple_set_u64(t, n++, count->val); | |
1036 | tuple_set_u64(t, n++, count->ena); | |
1037 | tuple_set_u64(t, n++, count->run); | |
1038 | ||
1039 | if (_PyTuple_Resize(&t, n) == -1) | |
1040 | Py_FatalError("error resizing Python tuple"); | |
1041 | ||
1042 | call_object(handler, t, handler_name); | |
1043 | ||
1044 | Py_DECREF(t); | |
1045 | } | |
1046 | ||
1047 | static void python_process_stat(struct perf_stat_config *config, | |
1048 | struct perf_evsel *counter, u64 tstamp) | |
1049 | { | |
1050 | struct thread_map *threads = counter->threads; | |
1051 | struct cpu_map *cpus = counter->cpus; | |
1052 | int cpu, thread; | |
1053 | ||
1054 | if (config->aggr_mode == AGGR_GLOBAL) { | |
1055 | process_stat(counter, -1, -1, tstamp, | |
1056 | &counter->counts->aggr); | |
1057 | return; | |
1058 | } | |
1059 | ||
1060 | for (thread = 0; thread < threads->nr; thread++) { | |
1061 | for (cpu = 0; cpu < cpus->nr; cpu++) { | |
1062 | process_stat(counter, cpus->map[cpu], | |
1063 | thread_map__pid(threads, thread), tstamp, | |
1064 | perf_counts(counter->counts, cpu, thread)); | |
1065 | } | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | static void python_process_stat_interval(u64 tstamp) | |
1070 | { | |
1071 | PyObject *handler, *t; | |
1072 | static const char handler_name[] = "stat__interval"; | |
1073 | int n = 0; | |
1074 | ||
1075 | t = PyTuple_New(MAX_FIELDS); | |
1076 | if (!t) | |
1077 | Py_FatalError("couldn't create Python tuple"); | |
1078 | ||
1079 | handler = get_handler(handler_name); | |
1080 | if (!handler) { | |
1081 | pr_debug("can't find python handler %s\n", handler_name); | |
1082 | return; | |
1083 | } | |
1084 | ||
1085 | tuple_set_u64(t, n++, tstamp); | |
1086 | ||
1087 | if (_PyTuple_Resize(&t, n) == -1) | |
1088 | Py_FatalError("error resizing Python tuple"); | |
1089 | ||
1090 | call_object(handler, t, handler_name); | |
1091 | ||
1092 | Py_DECREF(t); | |
1093 | } | |
1094 | ||
7e4b21b8 TZ |
1095 | static int run_start_sub(void) |
1096 | { | |
7e4b21b8 TZ |
1097 | main_module = PyImport_AddModule("__main__"); |
1098 | if (main_module == NULL) | |
1099 | return -1; | |
1100 | Py_INCREF(main_module); | |
1101 | ||
1102 | main_dict = PyModule_GetDict(main_module); | |
a5563edf | 1103 | if (main_dict == NULL) |
7e4b21b8 | 1104 | goto error; |
7e4b21b8 TZ |
1105 | Py_INCREF(main_dict); |
1106 | ||
a5563edf | 1107 | try_call_object("trace_begin", NULL); |
7e4b21b8 | 1108 | |
a5563edf | 1109 | return 0; |
7e4b21b8 | 1110 | |
7e4b21b8 TZ |
1111 | error: |
1112 | Py_XDECREF(main_dict); | |
1113 | Py_XDECREF(main_module); | |
a5563edf | 1114 | return -1; |
7e4b21b8 TZ |
1115 | } |
1116 | ||
df919b40 AH |
1117 | #define SET_TABLE_HANDLER_(name, handler_name, table_name) do { \ |
1118 | tables->handler_name = get_handler(#table_name); \ | |
1119 | if (tables->handler_name) \ | |
1120 | tables->dbe.export_ ## name = python_export_ ## name; \ | |
1121 | } while (0) | |
1122 | ||
1123 | #define SET_TABLE_HANDLER(name) \ | |
1124 | SET_TABLE_HANDLER_(name, name ## _handler, name ## _table) | |
1125 | ||
1126 | static void set_table_handlers(struct tables *tables) | |
1127 | { | |
1128 | const char *perf_db_export_mode = "perf_db_export_mode"; | |
6a70307d | 1129 | const char *perf_db_export_calls = "perf_db_export_calls"; |
2c15f5eb CP |
1130 | const char *perf_db_export_callchains = "perf_db_export_callchains"; |
1131 | PyObject *db_export_mode, *db_export_calls, *db_export_callchains; | |
6a70307d | 1132 | bool export_calls = false; |
2c15f5eb | 1133 | bool export_callchains = false; |
df919b40 AH |
1134 | int ret; |
1135 | ||
1136 | memset(tables, 0, sizeof(struct tables)); | |
1137 | if (db_export__init(&tables->dbe)) | |
1138 | Py_FatalError("failed to initialize export"); | |
1139 | ||
1140 | db_export_mode = PyDict_GetItemString(main_dict, perf_db_export_mode); | |
1141 | if (!db_export_mode) | |
1142 | return; | |
1143 | ||
1144 | ret = PyObject_IsTrue(db_export_mode); | |
1145 | if (ret == -1) | |
1146 | handler_call_die(perf_db_export_mode); | |
1147 | if (!ret) | |
1148 | return; | |
1149 | ||
2c15f5eb | 1150 | /* handle export calls */ |
6a70307d AH |
1151 | tables->dbe.crp = NULL; |
1152 | db_export_calls = PyDict_GetItemString(main_dict, perf_db_export_calls); | |
1153 | if (db_export_calls) { | |
1154 | ret = PyObject_IsTrue(db_export_calls); | |
1155 | if (ret == -1) | |
1156 | handler_call_die(perf_db_export_calls); | |
1157 | export_calls = !!ret; | |
1158 | } | |
1159 | ||
1160 | if (export_calls) { | |
1161 | tables->dbe.crp = | |
1162 | call_return_processor__new(python_process_call_return, | |
1163 | &tables->dbe); | |
1164 | if (!tables->dbe.crp) | |
1165 | Py_FatalError("failed to create calls processor"); | |
1166 | } | |
1167 | ||
2c15f5eb CP |
1168 | /* handle export callchains */ |
1169 | tables->dbe.cpr = NULL; | |
1170 | db_export_callchains = PyDict_GetItemString(main_dict, | |
1171 | perf_db_export_callchains); | |
1172 | if (db_export_callchains) { | |
1173 | ret = PyObject_IsTrue(db_export_callchains); | |
1174 | if (ret == -1) | |
1175 | handler_call_die(perf_db_export_callchains); | |
1176 | export_callchains = !!ret; | |
1177 | } | |
1178 | ||
1179 | if (export_callchains) { | |
1180 | /* | |
1181 | * Attempt to use the call path root from the call return | |
1182 | * processor, if the call return processor is in use. Otherwise, | |
1183 | * we allocate a new call path root. This prevents exporting | |
1184 | * duplicate call path ids when both are in use simultaniously. | |
1185 | */ | |
1186 | if (tables->dbe.crp) | |
1187 | tables->dbe.cpr = tables->dbe.crp->cpr; | |
1188 | else | |
1189 | tables->dbe.cpr = call_path_root__new(); | |
1190 | ||
1191 | if (!tables->dbe.cpr) | |
aff63340 | 1192 | Py_FatalError("failed to create call path root"); |
2c15f5eb CP |
1193 | } |
1194 | ||
df919b40 AH |
1195 | tables->db_export_mode = true; |
1196 | /* | |
1197 | * Reserve per symbol space for symbol->db_id via symbol__priv() | |
1198 | */ | |
1199 | symbol_conf.priv_size = sizeof(u64); | |
1200 | ||
1201 | SET_TABLE_HANDLER(evsel); | |
1202 | SET_TABLE_HANDLER(machine); | |
1203 | SET_TABLE_HANDLER(thread); | |
1204 | SET_TABLE_HANDLER(comm); | |
1205 | SET_TABLE_HANDLER(comm_thread); | |
1206 | SET_TABLE_HANDLER(dso); | |
1207 | SET_TABLE_HANDLER(symbol); | |
c29414f5 | 1208 | SET_TABLE_HANDLER(branch_type); |
df919b40 | 1209 | SET_TABLE_HANDLER(sample); |
6a70307d AH |
1210 | SET_TABLE_HANDLER(call_path); |
1211 | SET_TABLE_HANDLER(call_return); | |
df919b40 AH |
1212 | } |
1213 | ||
7e4b21b8 TZ |
1214 | /* |
1215 | * Start trace script | |
1216 | */ | |
1217 | static int python_start_script(const char *script, int argc, const char **argv) | |
1218 | { | |
df919b40 | 1219 | struct tables *tables = &tables_global; |
7e4b21b8 TZ |
1220 | const char **command_line; |
1221 | char buf[PATH_MAX]; | |
1222 | int i, err = 0; | |
1223 | FILE *fp; | |
1224 | ||
1225 | command_line = malloc((argc + 1) * sizeof(const char *)); | |
1226 | command_line[0] = script; | |
1227 | for (i = 1; i < argc + 1; i++) | |
1228 | command_line[i] = argv[i - 1]; | |
1229 | ||
1230 | Py_Initialize(); | |
1231 | ||
1232 | initperf_trace_context(); | |
1233 | ||
1234 | PySys_SetArgv(argc + 1, (char **)command_line); | |
1235 | ||
1236 | fp = fopen(script, "r"); | |
1237 | if (!fp) { | |
1238 | sprintf(buf, "Can't open python script \"%s\"", script); | |
1239 | perror(buf); | |
1240 | err = -1; | |
1241 | goto error; | |
1242 | } | |
1243 | ||
1244 | err = PyRun_SimpleFile(fp, script); | |
1245 | if (err) { | |
1246 | fprintf(stderr, "Error running python script %s\n", script); | |
1247 | goto error; | |
1248 | } | |
1249 | ||
1250 | err = run_start_sub(); | |
1251 | if (err) { | |
1252 | fprintf(stderr, "Error starting python script %s\n", script); | |
1253 | goto error; | |
1254 | } | |
1255 | ||
df919b40 AH |
1256 | set_table_handlers(tables); |
1257 | ||
c29414f5 AH |
1258 | if (tables->db_export_mode) { |
1259 | err = db_export__branch_types(&tables->dbe); | |
1260 | if (err) | |
1261 | goto error; | |
1262 | } | |
1263 | ||
979ac257 CIK |
1264 | free(command_line); |
1265 | ||
7e4b21b8 TZ |
1266 | return err; |
1267 | error: | |
1268 | Py_Finalize(); | |
1269 | free(command_line); | |
1270 | ||
1271 | return err; | |
1272 | } | |
1273 | ||
d445dd2a AH |
1274 | static int python_flush_script(void) |
1275 | { | |
758008b2 AH |
1276 | struct tables *tables = &tables_global; |
1277 | ||
1278 | return db_export__flush(&tables->dbe); | |
d445dd2a AH |
1279 | } |
1280 | ||
7e4b21b8 TZ |
1281 | /* |
1282 | * Stop trace script | |
1283 | */ | |
1284 | static int python_stop_script(void) | |
1285 | { | |
df919b40 AH |
1286 | struct tables *tables = &tables_global; |
1287 | ||
a5563edf | 1288 | try_call_object("trace_end", NULL); |
7e4b21b8 | 1289 | |
df919b40 AH |
1290 | db_export__exit(&tables->dbe); |
1291 | ||
7e4b21b8 TZ |
1292 | Py_XDECREF(main_dict); |
1293 | Py_XDECREF(main_module); | |
1294 | Py_Finalize(); | |
1295 | ||
a5563edf | 1296 | return 0; |
7e4b21b8 TZ |
1297 | } |
1298 | ||
da378962 | 1299 | static int python_generate_script(struct pevent *pevent, const char *outfile) |
7e4b21b8 | 1300 | { |
aaf045f7 | 1301 | struct event_format *event = NULL; |
7e4b21b8 TZ |
1302 | struct format_field *f; |
1303 | char fname[PATH_MAX]; | |
1304 | int not_first, count; | |
1305 | FILE *ofp; | |
1306 | ||
1307 | sprintf(fname, "%s.py", outfile); | |
1308 | ofp = fopen(fname, "w"); | |
1309 | if (ofp == NULL) { | |
1310 | fprintf(stderr, "couldn't open %s\n", fname); | |
1311 | return -1; | |
1312 | } | |
133dc4c3 IM |
1313 | fprintf(ofp, "# perf script event handlers, " |
1314 | "generated by perf script -g python\n"); | |
7e4b21b8 TZ |
1315 | |
1316 | fprintf(ofp, "# Licensed under the terms of the GNU GPL" | |
1317 | " License version 2\n\n"); | |
1318 | ||
1319 | fprintf(ofp, "# The common_* event handler fields are the most useful " | |
1320 | "fields common to\n"); | |
1321 | ||
1322 | fprintf(ofp, "# all events. They don't necessarily correspond to " | |
1323 | "the 'common_*' fields\n"); | |
1324 | ||
1325 | fprintf(ofp, "# in the format files. Those fields not available as " | |
1326 | "handler params can\n"); | |
1327 | ||
1328 | fprintf(ofp, "# be retrieved using Python functions of the form " | |
1329 | "common_*(context).\n"); | |
1330 | ||
c76132dc | 1331 | fprintf(ofp, "# See the perf-script-python Documentation for the list " |
7e4b21b8 TZ |
1332 | "of available functions.\n\n"); |
1333 | ||
1334 | fprintf(ofp, "import os\n"); | |
1335 | fprintf(ofp, "import sys\n\n"); | |
1336 | ||
1337 | fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n"); | |
1338 | fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n"); | |
1339 | fprintf(ofp, "\nfrom perf_trace_context import *\n"); | |
1340 | fprintf(ofp, "from Core import *\n\n\n"); | |
1341 | ||
1342 | fprintf(ofp, "def trace_begin():\n"); | |
1343 | fprintf(ofp, "\tprint \"in trace_begin\"\n\n"); | |
1344 | ||
1345 | fprintf(ofp, "def trace_end():\n"); | |
1346 | fprintf(ofp, "\tprint \"in trace_end\"\n\n"); | |
1347 | ||
da378962 | 1348 | while ((event = trace_find_next_event(pevent, event))) { |
7e4b21b8 TZ |
1349 | fprintf(ofp, "def %s__%s(", event->system, event->name); |
1350 | fprintf(ofp, "event_name, "); | |
1351 | fprintf(ofp, "context, "); | |
1352 | fprintf(ofp, "common_cpu,\n"); | |
1353 | fprintf(ofp, "\tcommon_secs, "); | |
1354 | fprintf(ofp, "common_nsecs, "); | |
1355 | fprintf(ofp, "common_pid, "); | |
1356 | fprintf(ofp, "common_comm,\n\t"); | |
0f5f5bcd | 1357 | fprintf(ofp, "common_callchain, "); |
7e4b21b8 TZ |
1358 | |
1359 | not_first = 0; | |
1360 | count = 0; | |
1361 | ||
1362 | for (f = event->format.fields; f; f = f->next) { | |
1363 | if (not_first++) | |
1364 | fprintf(ofp, ", "); | |
1365 | if (++count % 5 == 0) | |
1366 | fprintf(ofp, "\n\t"); | |
1367 | ||
1368 | fprintf(ofp, "%s", f->name); | |
1369 | } | |
1370 | fprintf(ofp, "):\n"); | |
1371 | ||
1372 | fprintf(ofp, "\t\tprint_header(event_name, common_cpu, " | |
1373 | "common_secs, common_nsecs,\n\t\t\t" | |
1374 | "common_pid, common_comm)\n\n"); | |
1375 | ||
1376 | fprintf(ofp, "\t\tprint \""); | |
1377 | ||
1378 | not_first = 0; | |
1379 | count = 0; | |
1380 | ||
1381 | for (f = event->format.fields; f; f = f->next) { | |
1382 | if (not_first++) | |
1383 | fprintf(ofp, ", "); | |
1384 | if (count && count % 3 == 0) { | |
1385 | fprintf(ofp, "\" \\\n\t\t\""); | |
1386 | } | |
1387 | count++; | |
1388 | ||
1389 | fprintf(ofp, "%s=", f->name); | |
1390 | if (f->flags & FIELD_IS_STRING || | |
1391 | f->flags & FIELD_IS_FLAG || | |
e646fe73 | 1392 | f->flags & FIELD_IS_ARRAY || |
7e4b21b8 TZ |
1393 | f->flags & FIELD_IS_SYMBOLIC) |
1394 | fprintf(ofp, "%%s"); | |
1395 | else if (f->flags & FIELD_IS_SIGNED) | |
1396 | fprintf(ofp, "%%d"); | |
1397 | else | |
1398 | fprintf(ofp, "%%u"); | |
1399 | } | |
1400 | ||
0f5f5bcd | 1401 | fprintf(ofp, "\" %% \\\n\t\t("); |
7e4b21b8 TZ |
1402 | |
1403 | not_first = 0; | |
1404 | count = 0; | |
1405 | ||
1406 | for (f = event->format.fields; f; f = f->next) { | |
1407 | if (not_first++) | |
1408 | fprintf(ofp, ", "); | |
1409 | ||
1410 | if (++count % 5 == 0) | |
1411 | fprintf(ofp, "\n\t\t"); | |
1412 | ||
1413 | if (f->flags & FIELD_IS_FLAG) { | |
1414 | if ((count - 1) % 5 != 0) { | |
1415 | fprintf(ofp, "\n\t\t"); | |
1416 | count = 4; | |
1417 | } | |
1418 | fprintf(ofp, "flag_str(\""); | |
1419 | fprintf(ofp, "%s__%s\", ", event->system, | |
1420 | event->name); | |
1421 | fprintf(ofp, "\"%s\", %s)", f->name, | |
1422 | f->name); | |
1423 | } else if (f->flags & FIELD_IS_SYMBOLIC) { | |
1424 | if ((count - 1) % 5 != 0) { | |
1425 | fprintf(ofp, "\n\t\t"); | |
1426 | count = 4; | |
1427 | } | |
1428 | fprintf(ofp, "symbol_str(\""); | |
1429 | fprintf(ofp, "%s__%s\", ", event->system, | |
1430 | event->name); | |
1431 | fprintf(ofp, "\"%s\", %s)", f->name, | |
1432 | f->name); | |
1433 | } else | |
1434 | fprintf(ofp, "%s", f->name); | |
1435 | } | |
1436 | ||
0f5f5bcd JS |
1437 | fprintf(ofp, ")\n\n"); |
1438 | ||
1439 | fprintf(ofp, "\t\tfor node in common_callchain:"); | |
1440 | fprintf(ofp, "\n\t\t\tif 'sym' in node:"); | |
1441 | fprintf(ofp, "\n\t\t\t\tprint \"\\t[%%x] %%s\" %% (node['ip'], node['sym']['name'])"); | |
1442 | fprintf(ofp, "\n\t\t\telse:"); | |
1443 | fprintf(ofp, "\n\t\t\t\tprint \"\t[%%x]\" %% (node['ip'])\n\n"); | |
1444 | fprintf(ofp, "\t\tprint \"\\n\"\n\n"); | |
1445 | ||
7e4b21b8 TZ |
1446 | } |
1447 | ||
1448 | fprintf(ofp, "def trace_unhandled(event_name, context, " | |
c0251485 | 1449 | "event_fields_dict):\n"); |
7e4b21b8 | 1450 | |
c0251485 PT |
1451 | fprintf(ofp, "\t\tprint ' '.join(['%%s=%%s'%%(k,str(v))" |
1452 | "for k,v in sorted(event_fields_dict.items())])\n\n"); | |
7e4b21b8 TZ |
1453 | |
1454 | fprintf(ofp, "def print_header(" | |
1455 | "event_name, cpu, secs, nsecs, pid, comm):\n" | |
1456 | "\tprint \"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t" | |
1457 | "(event_name, cpu, secs, nsecs, pid, comm),\n"); | |
1458 | ||
1459 | fclose(ofp); | |
1460 | ||
1461 | fprintf(stderr, "generated Python script: %s\n", fname); | |
1462 | ||
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | struct scripting_ops python_scripting_ops = { | |
aef90263 JO |
1467 | .name = "Python", |
1468 | .start_script = python_start_script, | |
1469 | .flush_script = python_flush_script, | |
1470 | .stop_script = python_stop_script, | |
1471 | .process_event = python_process_event, | |
1472 | .process_stat = python_process_stat, | |
1473 | .process_stat_interval = python_process_stat_interval, | |
1474 | .generate_script = python_generate_script, | |
7e4b21b8 | 1475 | }; |