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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 | ||
24 | #include <stdio.h> | |
25 | #include <stdlib.h> | |
26 | #include <string.h> | |
27 | #include <ctype.h> | |
28 | #include <errno.h> | |
29 | ||
30 | #include "../../perf.h" | |
31 | #include "../util.h" | |
32 | #include "../trace-event.h" | |
33 | ||
34 | PyMODINIT_FUNC initperf_trace_context(void); | |
35 | ||
36 | #define FTRACE_MAX_EVENT \ | |
37 | ((1 << (sizeof(unsigned short) * 8)) - 1) | |
38 | ||
39 | struct event *events[FTRACE_MAX_EVENT]; | |
40 | ||
41 | #define MAX_FIELDS 64 | |
42 | #define N_COMMON_FIELDS 7 | |
43 | ||
44 | extern struct scripting_context *scripting_context; | |
45 | ||
46 | static char *cur_field_name; | |
47 | static int zero_flag_atom; | |
48 | ||
49 | static PyObject *main_module, *main_dict; | |
50 | ||
51 | static void handler_call_die(const char *handler_name) | |
52 | { | |
53 | PyErr_Print(); | |
54 | Py_FatalError("problem in Python trace event handler"); | |
55 | } | |
56 | ||
57 | static void define_value(enum print_arg_type field_type, | |
58 | const char *ev_name, | |
59 | const char *field_name, | |
60 | const char *field_value, | |
61 | const char *field_str) | |
62 | { | |
63 | const char *handler_name = "define_flag_value"; | |
64 | PyObject *handler, *t, *retval; | |
65 | unsigned long long value; | |
66 | unsigned n = 0; | |
67 | ||
68 | if (field_type == PRINT_SYMBOL) | |
69 | handler_name = "define_symbolic_value"; | |
70 | ||
44ad9cd8 | 71 | t = PyTuple_New(4); |
7e4b21b8 TZ |
72 | if (!t) |
73 | Py_FatalError("couldn't create Python tuple"); | |
74 | ||
75 | value = eval_flag(field_value); | |
76 | ||
77 | PyTuple_SetItem(t, n++, PyString_FromString(ev_name)); | |
78 | PyTuple_SetItem(t, n++, PyString_FromString(field_name)); | |
79 | PyTuple_SetItem(t, n++, PyInt_FromLong(value)); | |
80 | PyTuple_SetItem(t, n++, PyString_FromString(field_str)); | |
81 | ||
7e4b21b8 TZ |
82 | handler = PyDict_GetItemString(main_dict, handler_name); |
83 | if (handler && PyCallable_Check(handler)) { | |
84 | retval = PyObject_CallObject(handler, t); | |
85 | if (retval == NULL) | |
86 | handler_call_die(handler_name); | |
87 | } | |
88 | ||
89 | Py_DECREF(t); | |
90 | } | |
91 | ||
92 | static void define_values(enum print_arg_type field_type, | |
93 | struct print_flag_sym *field, | |
94 | const char *ev_name, | |
95 | const char *field_name) | |
96 | { | |
97 | define_value(field_type, ev_name, field_name, field->value, | |
98 | field->str); | |
99 | ||
100 | if (field->next) | |
101 | define_values(field_type, field->next, ev_name, field_name); | |
102 | } | |
103 | ||
104 | static void define_field(enum print_arg_type field_type, | |
105 | const char *ev_name, | |
106 | const char *field_name, | |
107 | const char *delim) | |
108 | { | |
109 | const char *handler_name = "define_flag_field"; | |
110 | PyObject *handler, *t, *retval; | |
111 | unsigned n = 0; | |
112 | ||
113 | if (field_type == PRINT_SYMBOL) | |
114 | handler_name = "define_symbolic_field"; | |
115 | ||
44ad9cd8 TZ |
116 | if (field_type == PRINT_FLAGS) |
117 | t = PyTuple_New(3); | |
118 | else | |
119 | t = PyTuple_New(2); | |
7e4b21b8 TZ |
120 | if (!t) |
121 | Py_FatalError("couldn't create Python tuple"); | |
122 | ||
123 | PyTuple_SetItem(t, n++, PyString_FromString(ev_name)); | |
124 | PyTuple_SetItem(t, n++, PyString_FromString(field_name)); | |
125 | if (field_type == PRINT_FLAGS) | |
126 | PyTuple_SetItem(t, n++, PyString_FromString(delim)); | |
127 | ||
7e4b21b8 TZ |
128 | handler = PyDict_GetItemString(main_dict, handler_name); |
129 | if (handler && PyCallable_Check(handler)) { | |
130 | retval = PyObject_CallObject(handler, t); | |
131 | if (retval == NULL) | |
132 | handler_call_die(handler_name); | |
133 | } | |
134 | ||
135 | Py_DECREF(t); | |
136 | } | |
137 | ||
138 | static void define_event_symbols(struct event *event, | |
139 | const char *ev_name, | |
140 | struct print_arg *args) | |
141 | { | |
142 | switch (args->type) { | |
143 | case PRINT_NULL: | |
144 | break; | |
145 | case PRINT_ATOM: | |
146 | define_value(PRINT_FLAGS, ev_name, cur_field_name, "0", | |
147 | args->atom.atom); | |
148 | zero_flag_atom = 0; | |
149 | break; | |
150 | case PRINT_FIELD: | |
151 | if (cur_field_name) | |
152 | free(cur_field_name); | |
153 | cur_field_name = strdup(args->field.name); | |
154 | break; | |
155 | case PRINT_FLAGS: | |
156 | define_event_symbols(event, ev_name, args->flags.field); | |
157 | define_field(PRINT_FLAGS, ev_name, cur_field_name, | |
158 | args->flags.delim); | |
159 | define_values(PRINT_FLAGS, args->flags.flags, ev_name, | |
160 | cur_field_name); | |
161 | break; | |
162 | case PRINT_SYMBOL: | |
163 | define_event_symbols(event, ev_name, args->symbol.field); | |
164 | define_field(PRINT_SYMBOL, ev_name, cur_field_name, NULL); | |
165 | define_values(PRINT_SYMBOL, args->symbol.symbols, ev_name, | |
166 | cur_field_name); | |
167 | break; | |
168 | case PRINT_STRING: | |
169 | break; | |
170 | case PRINT_TYPE: | |
171 | define_event_symbols(event, ev_name, args->typecast.item); | |
172 | break; | |
173 | case PRINT_OP: | |
174 | if (strcmp(args->op.op, ":") == 0) | |
175 | zero_flag_atom = 1; | |
176 | define_event_symbols(event, ev_name, args->op.left); | |
177 | define_event_symbols(event, ev_name, args->op.right); | |
178 | break; | |
179 | default: | |
180 | /* we should warn... */ | |
181 | return; | |
182 | } | |
183 | ||
184 | if (args->next) | |
185 | define_event_symbols(event, ev_name, args->next); | |
186 | } | |
187 | ||
188 | static inline struct event *find_cache_event(int type) | |
189 | { | |
190 | static char ev_name[256]; | |
191 | struct event *event; | |
192 | ||
193 | if (events[type]) | |
194 | return events[type]; | |
195 | ||
196 | events[type] = event = trace_find_event(type); | |
197 | if (!event) | |
198 | return NULL; | |
199 | ||
200 | sprintf(ev_name, "%s__%s", event->system, event->name); | |
201 | ||
202 | define_event_symbols(event, ev_name, event->print_fmt.args); | |
203 | ||
204 | return event; | |
205 | } | |
206 | ||
be6d842a DA |
207 | static void python_process_event(union perf_event *pevent __unused, |
208 | struct perf_sample *sample, | |
9e69c210 | 209 | struct perf_evsel *evsel __unused, |
be6d842a DA |
210 | struct perf_session *session __unused, |
211 | struct thread *thread) | |
7e4b21b8 | 212 | { |
c0251485 | 213 | PyObject *handler, *retval, *context, *t, *obj, *dict = NULL; |
7e4b21b8 TZ |
214 | static char handler_name[256]; |
215 | struct format_field *field; | |
216 | unsigned long long val; | |
217 | unsigned long s, ns; | |
218 | struct event *event; | |
219 | unsigned n = 0; | |
220 | int type; | |
221 | int pid; | |
be6d842a DA |
222 | int cpu = sample->cpu; |
223 | void *data = sample->raw_data; | |
224 | unsigned long long nsecs = sample->time; | |
225 | char *comm = thread->comm; | |
7e4b21b8 TZ |
226 | |
227 | t = PyTuple_New(MAX_FIELDS); | |
228 | if (!t) | |
229 | Py_FatalError("couldn't create Python tuple"); | |
230 | ||
231 | type = trace_parse_common_type(data); | |
232 | ||
233 | event = find_cache_event(type); | |
234 | if (!event) | |
235 | die("ug! no event found for type %d", type); | |
236 | ||
237 | pid = trace_parse_common_pid(data); | |
238 | ||
239 | sprintf(handler_name, "%s__%s", event->system, event->name); | |
240 | ||
c0251485 PT |
241 | handler = PyDict_GetItemString(main_dict, handler_name); |
242 | if (handler && !PyCallable_Check(handler)) | |
243 | handler = NULL; | |
244 | if (!handler) { | |
245 | dict = PyDict_New(); | |
246 | if (!dict) | |
247 | Py_FatalError("couldn't create Python dict"); | |
248 | } | |
7e4b21b8 TZ |
249 | s = nsecs / NSECS_PER_SEC; |
250 | ns = nsecs - s * NSECS_PER_SEC; | |
251 | ||
252 | scripting_context->event_data = data; | |
253 | ||
254 | context = PyCObject_FromVoidPtr(scripting_context, NULL); | |
255 | ||
256 | PyTuple_SetItem(t, n++, PyString_FromString(handler_name)); | |
fb7d0b3c | 257 | PyTuple_SetItem(t, n++, context); |
7e4b21b8 | 258 | |
c0251485 PT |
259 | if (handler) { |
260 | PyTuple_SetItem(t, n++, PyInt_FromLong(cpu)); | |
261 | PyTuple_SetItem(t, n++, PyInt_FromLong(s)); | |
262 | PyTuple_SetItem(t, n++, PyInt_FromLong(ns)); | |
263 | PyTuple_SetItem(t, n++, PyInt_FromLong(pid)); | |
264 | PyTuple_SetItem(t, n++, PyString_FromString(comm)); | |
265 | } else { | |
266 | PyDict_SetItemString(dict, "common_cpu", PyInt_FromLong(cpu)); | |
267 | PyDict_SetItemString(dict, "common_s", PyInt_FromLong(s)); | |
268 | PyDict_SetItemString(dict, "common_ns", PyInt_FromLong(ns)); | |
269 | PyDict_SetItemString(dict, "common_pid", PyInt_FromLong(pid)); | |
270 | PyDict_SetItemString(dict, "common_comm", PyString_FromString(comm)); | |
271 | } | |
7e4b21b8 TZ |
272 | for (field = event->format.fields; field; field = field->next) { |
273 | if (field->flags & FIELD_IS_STRING) { | |
274 | int offset; | |
275 | if (field->flags & FIELD_IS_DYNAMIC) { | |
276 | offset = *(int *)(data + field->offset); | |
277 | offset &= 0xffff; | |
278 | } else | |
279 | offset = field->offset; | |
b1dcc03c | 280 | obj = PyString_FromString((char *)data + offset); |
7e4b21b8 TZ |
281 | } else { /* FIELD_IS_NUMERIC */ |
282 | val = read_size(data + field->offset, field->size); | |
283 | if (field->flags & FIELD_IS_SIGNED) { | |
b1dcc03c TZ |
284 | if ((long long)val >= LONG_MIN && |
285 | (long long)val <= LONG_MAX) | |
286 | obj = PyInt_FromLong(val); | |
287 | else | |
288 | obj = PyLong_FromLongLong(val); | |
7e4b21b8 | 289 | } else { |
b1dcc03c TZ |
290 | if (val <= LONG_MAX) |
291 | obj = PyInt_FromLong(val); | |
292 | else | |
293 | obj = PyLong_FromUnsignedLongLong(val); | |
7e4b21b8 TZ |
294 | } |
295 | } | |
c0251485 PT |
296 | if (handler) |
297 | PyTuple_SetItem(t, n++, obj); | |
298 | else | |
299 | PyDict_SetItemString(dict, field->name, obj); | |
300 | ||
7e4b21b8 | 301 | } |
c0251485 PT |
302 | if (!handler) |
303 | PyTuple_SetItem(t, n++, dict); | |
7e4b21b8 TZ |
304 | |
305 | if (_PyTuple_Resize(&t, n) == -1) | |
306 | Py_FatalError("error resizing Python tuple"); | |
307 | ||
c0251485 | 308 | if (handler) { |
7e4b21b8 TZ |
309 | retval = PyObject_CallObject(handler, t); |
310 | if (retval == NULL) | |
311 | handler_call_die(handler_name); | |
312 | } else { | |
313 | handler = PyDict_GetItemString(main_dict, "trace_unhandled"); | |
314 | if (handler && PyCallable_Check(handler)) { | |
7e4b21b8 TZ |
315 | |
316 | retval = PyObject_CallObject(handler, t); | |
317 | if (retval == NULL) | |
318 | handler_call_die("trace_unhandled"); | |
319 | } | |
c0251485 | 320 | Py_DECREF(dict); |
7e4b21b8 TZ |
321 | } |
322 | ||
323 | Py_DECREF(t); | |
324 | } | |
325 | ||
326 | static int run_start_sub(void) | |
327 | { | |
328 | PyObject *handler, *retval; | |
329 | int err = 0; | |
330 | ||
331 | main_module = PyImport_AddModule("__main__"); | |
332 | if (main_module == NULL) | |
333 | return -1; | |
334 | Py_INCREF(main_module); | |
335 | ||
336 | main_dict = PyModule_GetDict(main_module); | |
337 | if (main_dict == NULL) { | |
338 | err = -1; | |
339 | goto error; | |
340 | } | |
341 | Py_INCREF(main_dict); | |
342 | ||
343 | handler = PyDict_GetItemString(main_dict, "trace_begin"); | |
344 | if (handler == NULL || !PyCallable_Check(handler)) | |
345 | goto out; | |
346 | ||
347 | retval = PyObject_CallObject(handler, NULL); | |
348 | if (retval == NULL) | |
349 | handler_call_die("trace_begin"); | |
350 | ||
351 | Py_DECREF(retval); | |
352 | return err; | |
353 | error: | |
354 | Py_XDECREF(main_dict); | |
355 | Py_XDECREF(main_module); | |
356 | out: | |
357 | return err; | |
358 | } | |
359 | ||
360 | /* | |
361 | * Start trace script | |
362 | */ | |
363 | static int python_start_script(const char *script, int argc, const char **argv) | |
364 | { | |
365 | const char **command_line; | |
366 | char buf[PATH_MAX]; | |
367 | int i, err = 0; | |
368 | FILE *fp; | |
369 | ||
370 | command_line = malloc((argc + 1) * sizeof(const char *)); | |
371 | command_line[0] = script; | |
372 | for (i = 1; i < argc + 1; i++) | |
373 | command_line[i] = argv[i - 1]; | |
374 | ||
375 | Py_Initialize(); | |
376 | ||
377 | initperf_trace_context(); | |
378 | ||
379 | PySys_SetArgv(argc + 1, (char **)command_line); | |
380 | ||
381 | fp = fopen(script, "r"); | |
382 | if (!fp) { | |
383 | sprintf(buf, "Can't open python script \"%s\"", script); | |
384 | perror(buf); | |
385 | err = -1; | |
386 | goto error; | |
387 | } | |
388 | ||
389 | err = PyRun_SimpleFile(fp, script); | |
390 | if (err) { | |
391 | fprintf(stderr, "Error running python script %s\n", script); | |
392 | goto error; | |
393 | } | |
394 | ||
395 | err = run_start_sub(); | |
396 | if (err) { | |
397 | fprintf(stderr, "Error starting python script %s\n", script); | |
398 | goto error; | |
399 | } | |
400 | ||
401 | free(command_line); | |
7e4b21b8 TZ |
402 | |
403 | return err; | |
404 | error: | |
405 | Py_Finalize(); | |
406 | free(command_line); | |
407 | ||
408 | return err; | |
409 | } | |
410 | ||
411 | /* | |
412 | * Stop trace script | |
413 | */ | |
414 | static int python_stop_script(void) | |
415 | { | |
416 | PyObject *handler, *retval; | |
417 | int err = 0; | |
418 | ||
419 | handler = PyDict_GetItemString(main_dict, "trace_end"); | |
420 | if (handler == NULL || !PyCallable_Check(handler)) | |
421 | goto out; | |
422 | ||
423 | retval = PyObject_CallObject(handler, NULL); | |
424 | if (retval == NULL) | |
425 | handler_call_die("trace_end"); | |
426 | else | |
427 | Py_DECREF(retval); | |
428 | out: | |
429 | Py_XDECREF(main_dict); | |
430 | Py_XDECREF(main_module); | |
431 | Py_Finalize(); | |
432 | ||
7e4b21b8 TZ |
433 | return err; |
434 | } | |
435 | ||
436 | static int python_generate_script(const char *outfile) | |
437 | { | |
438 | struct event *event = NULL; | |
439 | struct format_field *f; | |
440 | char fname[PATH_MAX]; | |
441 | int not_first, count; | |
442 | FILE *ofp; | |
443 | ||
444 | sprintf(fname, "%s.py", outfile); | |
445 | ofp = fopen(fname, "w"); | |
446 | if (ofp == NULL) { | |
447 | fprintf(stderr, "couldn't open %s\n", fname); | |
448 | return -1; | |
449 | } | |
133dc4c3 IM |
450 | fprintf(ofp, "# perf script event handlers, " |
451 | "generated by perf script -g python\n"); | |
7e4b21b8 TZ |
452 | |
453 | fprintf(ofp, "# Licensed under the terms of the GNU GPL" | |
454 | " License version 2\n\n"); | |
455 | ||
456 | fprintf(ofp, "# The common_* event handler fields are the most useful " | |
457 | "fields common to\n"); | |
458 | ||
459 | fprintf(ofp, "# all events. They don't necessarily correspond to " | |
460 | "the 'common_*' fields\n"); | |
461 | ||
462 | fprintf(ofp, "# in the format files. Those fields not available as " | |
463 | "handler params can\n"); | |
464 | ||
465 | fprintf(ofp, "# be retrieved using Python functions of the form " | |
466 | "common_*(context).\n"); | |
467 | ||
468 | fprintf(ofp, "# See the perf-trace-python Documentation for the list " | |
469 | "of available functions.\n\n"); | |
470 | ||
471 | fprintf(ofp, "import os\n"); | |
472 | fprintf(ofp, "import sys\n\n"); | |
473 | ||
474 | fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n"); | |
475 | fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n"); | |
476 | fprintf(ofp, "\nfrom perf_trace_context import *\n"); | |
477 | fprintf(ofp, "from Core import *\n\n\n"); | |
478 | ||
479 | fprintf(ofp, "def trace_begin():\n"); | |
480 | fprintf(ofp, "\tprint \"in trace_begin\"\n\n"); | |
481 | ||
482 | fprintf(ofp, "def trace_end():\n"); | |
483 | fprintf(ofp, "\tprint \"in trace_end\"\n\n"); | |
484 | ||
485 | while ((event = trace_find_next_event(event))) { | |
486 | fprintf(ofp, "def %s__%s(", event->system, event->name); | |
487 | fprintf(ofp, "event_name, "); | |
488 | fprintf(ofp, "context, "); | |
489 | fprintf(ofp, "common_cpu,\n"); | |
490 | fprintf(ofp, "\tcommon_secs, "); | |
491 | fprintf(ofp, "common_nsecs, "); | |
492 | fprintf(ofp, "common_pid, "); | |
493 | fprintf(ofp, "common_comm,\n\t"); | |
494 | ||
495 | not_first = 0; | |
496 | count = 0; | |
497 | ||
498 | for (f = event->format.fields; f; f = f->next) { | |
499 | if (not_first++) | |
500 | fprintf(ofp, ", "); | |
501 | if (++count % 5 == 0) | |
502 | fprintf(ofp, "\n\t"); | |
503 | ||
504 | fprintf(ofp, "%s", f->name); | |
505 | } | |
506 | fprintf(ofp, "):\n"); | |
507 | ||
508 | fprintf(ofp, "\t\tprint_header(event_name, common_cpu, " | |
509 | "common_secs, common_nsecs,\n\t\t\t" | |
510 | "common_pid, common_comm)\n\n"); | |
511 | ||
512 | fprintf(ofp, "\t\tprint \""); | |
513 | ||
514 | not_first = 0; | |
515 | count = 0; | |
516 | ||
517 | for (f = event->format.fields; f; f = f->next) { | |
518 | if (not_first++) | |
519 | fprintf(ofp, ", "); | |
520 | if (count && count % 3 == 0) { | |
521 | fprintf(ofp, "\" \\\n\t\t\""); | |
522 | } | |
523 | count++; | |
524 | ||
525 | fprintf(ofp, "%s=", f->name); | |
526 | if (f->flags & FIELD_IS_STRING || | |
527 | f->flags & FIELD_IS_FLAG || | |
528 | f->flags & FIELD_IS_SYMBOLIC) | |
529 | fprintf(ofp, "%%s"); | |
530 | else if (f->flags & FIELD_IS_SIGNED) | |
531 | fprintf(ofp, "%%d"); | |
532 | else | |
533 | fprintf(ofp, "%%u"); | |
534 | } | |
535 | ||
536 | fprintf(ofp, "\\n\" %% \\\n\t\t("); | |
537 | ||
538 | not_first = 0; | |
539 | count = 0; | |
540 | ||
541 | for (f = event->format.fields; f; f = f->next) { | |
542 | if (not_first++) | |
543 | fprintf(ofp, ", "); | |
544 | ||
545 | if (++count % 5 == 0) | |
546 | fprintf(ofp, "\n\t\t"); | |
547 | ||
548 | if (f->flags & FIELD_IS_FLAG) { | |
549 | if ((count - 1) % 5 != 0) { | |
550 | fprintf(ofp, "\n\t\t"); | |
551 | count = 4; | |
552 | } | |
553 | fprintf(ofp, "flag_str(\""); | |
554 | fprintf(ofp, "%s__%s\", ", event->system, | |
555 | event->name); | |
556 | fprintf(ofp, "\"%s\", %s)", f->name, | |
557 | f->name); | |
558 | } else if (f->flags & FIELD_IS_SYMBOLIC) { | |
559 | if ((count - 1) % 5 != 0) { | |
560 | fprintf(ofp, "\n\t\t"); | |
561 | count = 4; | |
562 | } | |
563 | fprintf(ofp, "symbol_str(\""); | |
564 | fprintf(ofp, "%s__%s\", ", event->system, | |
565 | event->name); | |
566 | fprintf(ofp, "\"%s\", %s)", f->name, | |
567 | f->name); | |
568 | } else | |
569 | fprintf(ofp, "%s", f->name); | |
570 | } | |
571 | ||
572 | fprintf(ofp, "),\n\n"); | |
573 | } | |
574 | ||
575 | fprintf(ofp, "def trace_unhandled(event_name, context, " | |
c0251485 | 576 | "event_fields_dict):\n"); |
7e4b21b8 | 577 | |
c0251485 PT |
578 | fprintf(ofp, "\t\tprint ' '.join(['%%s=%%s'%%(k,str(v))" |
579 | "for k,v in sorted(event_fields_dict.items())])\n\n"); | |
7e4b21b8 TZ |
580 | |
581 | fprintf(ofp, "def print_header(" | |
582 | "event_name, cpu, secs, nsecs, pid, comm):\n" | |
583 | "\tprint \"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t" | |
584 | "(event_name, cpu, secs, nsecs, pid, comm),\n"); | |
585 | ||
586 | fclose(ofp); | |
587 | ||
588 | fprintf(stderr, "generated Python script: %s\n", fname); | |
589 | ||
590 | return 0; | |
591 | } | |
592 | ||
593 | struct scripting_ops python_scripting_ops = { | |
594 | .name = "Python", | |
595 | .start_script = python_start_script, | |
596 | .stop_script = python_stop_script, | |
597 | .process_event = python_process_event, | |
598 | .generate_script = python_generate_script, | |
599 | }; |