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Commit | Line | Data |
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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> | |
7e4b21b8 TZ |
27 | #include <errno.h> |
28 | ||
29 | #include "../../perf.h" | |
30 | #include "../util.h" | |
743eb868 ACM |
31 | #include "../event.h" |
32 | #include "../thread.h" | |
7e4b21b8 TZ |
33 | #include "../trace-event.h" |
34 | ||
35 | PyMODINIT_FUNC initperf_trace_context(void); | |
36 | ||
37 | #define FTRACE_MAX_EVENT \ | |
38 | ((1 << (sizeof(unsigned short) * 8)) - 1) | |
39 | ||
aaf045f7 | 40 | struct event_format *events[FTRACE_MAX_EVENT]; |
7e4b21b8 TZ |
41 | |
42 | #define MAX_FIELDS 64 | |
43 | #define N_COMMON_FIELDS 7 | |
44 | ||
45 | extern struct scripting_context *scripting_context; | |
46 | ||
47 | static char *cur_field_name; | |
48 | static int zero_flag_atom; | |
49 | ||
50 | static PyObject *main_module, *main_dict; | |
51 | ||
52 | static void handler_call_die(const char *handler_name) | |
53 | { | |
54 | PyErr_Print(); | |
55 | Py_FatalError("problem in Python trace event handler"); | |
56 | } | |
57 | ||
58 | static void define_value(enum print_arg_type field_type, | |
59 | const char *ev_name, | |
60 | const char *field_name, | |
61 | const char *field_value, | |
62 | const char *field_str) | |
63 | { | |
64 | const char *handler_name = "define_flag_value"; | |
65 | PyObject *handler, *t, *retval; | |
66 | unsigned long long value; | |
67 | unsigned n = 0; | |
68 | ||
69 | if (field_type == PRINT_SYMBOL) | |
70 | handler_name = "define_symbolic_value"; | |
71 | ||
44ad9cd8 | 72 | t = PyTuple_New(4); |
7e4b21b8 TZ |
73 | if (!t) |
74 | Py_FatalError("couldn't create Python tuple"); | |
75 | ||
76 | value = eval_flag(field_value); | |
77 | ||
78 | PyTuple_SetItem(t, n++, PyString_FromString(ev_name)); | |
79 | PyTuple_SetItem(t, n++, PyString_FromString(field_name)); | |
80 | PyTuple_SetItem(t, n++, PyInt_FromLong(value)); | |
81 | PyTuple_SetItem(t, n++, PyString_FromString(field_str)); | |
82 | ||
7e4b21b8 TZ |
83 | handler = PyDict_GetItemString(main_dict, handler_name); |
84 | if (handler && PyCallable_Check(handler)) { | |
85 | retval = PyObject_CallObject(handler, t); | |
86 | if (retval == NULL) | |
87 | handler_call_die(handler_name); | |
88 | } | |
89 | ||
90 | Py_DECREF(t); | |
91 | } | |
92 | ||
93 | static void define_values(enum print_arg_type field_type, | |
94 | struct print_flag_sym *field, | |
95 | const char *ev_name, | |
96 | const char *field_name) | |
97 | { | |
98 | define_value(field_type, ev_name, field_name, field->value, | |
99 | field->str); | |
100 | ||
101 | if (field->next) | |
102 | define_values(field_type, field->next, ev_name, field_name); | |
103 | } | |
104 | ||
105 | static void define_field(enum print_arg_type field_type, | |
106 | const char *ev_name, | |
107 | const char *field_name, | |
108 | const char *delim) | |
109 | { | |
110 | const char *handler_name = "define_flag_field"; | |
111 | PyObject *handler, *t, *retval; | |
112 | unsigned n = 0; | |
113 | ||
114 | if (field_type == PRINT_SYMBOL) | |
115 | handler_name = "define_symbolic_field"; | |
116 | ||
44ad9cd8 TZ |
117 | if (field_type == PRINT_FLAGS) |
118 | t = PyTuple_New(3); | |
119 | else | |
120 | t = PyTuple_New(2); | |
7e4b21b8 TZ |
121 | if (!t) |
122 | Py_FatalError("couldn't create Python tuple"); | |
123 | ||
124 | PyTuple_SetItem(t, n++, PyString_FromString(ev_name)); | |
125 | PyTuple_SetItem(t, n++, PyString_FromString(field_name)); | |
126 | if (field_type == PRINT_FLAGS) | |
127 | PyTuple_SetItem(t, n++, PyString_FromString(delim)); | |
128 | ||
7e4b21b8 TZ |
129 | handler = PyDict_GetItemString(main_dict, handler_name); |
130 | if (handler && PyCallable_Check(handler)) { | |
131 | retval = PyObject_CallObject(handler, t); | |
132 | if (retval == NULL) | |
133 | handler_call_die(handler_name); | |
134 | } | |
135 | ||
136 | Py_DECREF(t); | |
137 | } | |
138 | ||
aaf045f7 | 139 | static void define_event_symbols(struct event_format *event, |
7e4b21b8 TZ |
140 | const char *ev_name, |
141 | struct print_arg *args) | |
142 | { | |
143 | switch (args->type) { | |
144 | case PRINT_NULL: | |
145 | break; | |
146 | case PRINT_ATOM: | |
147 | define_value(PRINT_FLAGS, ev_name, cur_field_name, "0", | |
148 | args->atom.atom); | |
149 | zero_flag_atom = 0; | |
150 | break; | |
151 | case PRINT_FIELD: | |
152 | if (cur_field_name) | |
153 | free(cur_field_name); | |
154 | cur_field_name = strdup(args->field.name); | |
155 | break; | |
156 | case PRINT_FLAGS: | |
157 | define_event_symbols(event, ev_name, args->flags.field); | |
158 | define_field(PRINT_FLAGS, ev_name, cur_field_name, | |
159 | args->flags.delim); | |
160 | define_values(PRINT_FLAGS, args->flags.flags, ev_name, | |
161 | cur_field_name); | |
162 | break; | |
163 | case PRINT_SYMBOL: | |
164 | define_event_symbols(event, ev_name, args->symbol.field); | |
165 | define_field(PRINT_SYMBOL, ev_name, cur_field_name, NULL); | |
166 | define_values(PRINT_SYMBOL, args->symbol.symbols, ev_name, | |
167 | cur_field_name); | |
168 | break; | |
169 | case PRINT_STRING: | |
170 | break; | |
171 | case PRINT_TYPE: | |
172 | define_event_symbols(event, ev_name, args->typecast.item); | |
173 | break; | |
174 | case PRINT_OP: | |
175 | if (strcmp(args->op.op, ":") == 0) | |
176 | zero_flag_atom = 1; | |
177 | define_event_symbols(event, ev_name, args->op.left); | |
178 | define_event_symbols(event, ev_name, args->op.right); | |
179 | break; | |
180 | default: | |
aaf045f7 SR |
181 | /* gcc warns for these? */ |
182 | case PRINT_BSTRING: | |
183 | case PRINT_DYNAMIC_ARRAY: | |
184 | case PRINT_FUNC: | |
7e4b21b8 TZ |
185 | /* we should warn... */ |
186 | return; | |
187 | } | |
188 | ||
189 | if (args->next) | |
190 | define_event_symbols(event, ev_name, args->next); | |
191 | } | |
192 | ||
aaf045f7 | 193 | static inline struct event_format *find_cache_event(int type) |
7e4b21b8 TZ |
194 | { |
195 | static char ev_name[256]; | |
aaf045f7 | 196 | struct event_format *event; |
7e4b21b8 TZ |
197 | |
198 | if (events[type]) | |
199 | return events[type]; | |
200 | ||
201 | events[type] = event = trace_find_event(type); | |
202 | if (!event) | |
203 | return NULL; | |
204 | ||
205 | sprintf(ev_name, "%s__%s", event->system, event->name); | |
206 | ||
207 | define_event_symbols(event, ev_name, event->print_fmt.args); | |
208 | ||
209 | return event; | |
210 | } | |
211 | ||
be6d842a DA |
212 | static void python_process_event(union perf_event *pevent __unused, |
213 | struct perf_sample *sample, | |
9e69c210 | 214 | struct perf_evsel *evsel __unused, |
743eb868 | 215 | struct machine *machine __unused, |
be6d842a | 216 | struct thread *thread) |
7e4b21b8 | 217 | { |
c0251485 | 218 | PyObject *handler, *retval, *context, *t, *obj, *dict = NULL; |
7e4b21b8 TZ |
219 | static char handler_name[256]; |
220 | struct format_field *field; | |
221 | unsigned long long val; | |
222 | unsigned long s, ns; | |
aaf045f7 | 223 | struct event_format *event; |
7e4b21b8 TZ |
224 | unsigned n = 0; |
225 | int type; | |
226 | int pid; | |
be6d842a DA |
227 | int cpu = sample->cpu; |
228 | void *data = sample->raw_data; | |
229 | unsigned long long nsecs = sample->time; | |
230 | char *comm = thread->comm; | |
7e4b21b8 TZ |
231 | |
232 | t = PyTuple_New(MAX_FIELDS); | |
233 | if (!t) | |
234 | Py_FatalError("couldn't create Python tuple"); | |
235 | ||
236 | type = trace_parse_common_type(data); | |
237 | ||
238 | event = find_cache_event(type); | |
239 | if (!event) | |
240 | die("ug! no event found for type %d", type); | |
241 | ||
242 | pid = trace_parse_common_pid(data); | |
243 | ||
244 | sprintf(handler_name, "%s__%s", event->system, event->name); | |
245 | ||
c0251485 PT |
246 | handler = PyDict_GetItemString(main_dict, handler_name); |
247 | if (handler && !PyCallable_Check(handler)) | |
248 | handler = NULL; | |
249 | if (!handler) { | |
250 | dict = PyDict_New(); | |
251 | if (!dict) | |
252 | Py_FatalError("couldn't create Python dict"); | |
253 | } | |
7e4b21b8 TZ |
254 | s = nsecs / NSECS_PER_SEC; |
255 | ns = nsecs - s * NSECS_PER_SEC; | |
256 | ||
257 | scripting_context->event_data = data; | |
258 | ||
259 | context = PyCObject_FromVoidPtr(scripting_context, NULL); | |
260 | ||
261 | PyTuple_SetItem(t, n++, PyString_FromString(handler_name)); | |
fb7d0b3c | 262 | PyTuple_SetItem(t, n++, context); |
7e4b21b8 | 263 | |
c0251485 PT |
264 | if (handler) { |
265 | PyTuple_SetItem(t, n++, PyInt_FromLong(cpu)); | |
266 | PyTuple_SetItem(t, n++, PyInt_FromLong(s)); | |
267 | PyTuple_SetItem(t, n++, PyInt_FromLong(ns)); | |
268 | PyTuple_SetItem(t, n++, PyInt_FromLong(pid)); | |
269 | PyTuple_SetItem(t, n++, PyString_FromString(comm)); | |
270 | } else { | |
271 | PyDict_SetItemString(dict, "common_cpu", PyInt_FromLong(cpu)); | |
272 | PyDict_SetItemString(dict, "common_s", PyInt_FromLong(s)); | |
273 | PyDict_SetItemString(dict, "common_ns", PyInt_FromLong(ns)); | |
274 | PyDict_SetItemString(dict, "common_pid", PyInt_FromLong(pid)); | |
275 | PyDict_SetItemString(dict, "common_comm", PyString_FromString(comm)); | |
276 | } | |
7e4b21b8 TZ |
277 | for (field = event->format.fields; field; field = field->next) { |
278 | if (field->flags & FIELD_IS_STRING) { | |
279 | int offset; | |
280 | if (field->flags & FIELD_IS_DYNAMIC) { | |
281 | offset = *(int *)(data + field->offset); | |
282 | offset &= 0xffff; | |
283 | } else | |
284 | offset = field->offset; | |
b1dcc03c | 285 | obj = PyString_FromString((char *)data + offset); |
7e4b21b8 TZ |
286 | } else { /* FIELD_IS_NUMERIC */ |
287 | val = read_size(data + field->offset, field->size); | |
288 | if (field->flags & FIELD_IS_SIGNED) { | |
b1dcc03c TZ |
289 | if ((long long)val >= LONG_MIN && |
290 | (long long)val <= LONG_MAX) | |
291 | obj = PyInt_FromLong(val); | |
292 | else | |
293 | obj = PyLong_FromLongLong(val); | |
7e4b21b8 | 294 | } else { |
b1dcc03c TZ |
295 | if (val <= LONG_MAX) |
296 | obj = PyInt_FromLong(val); | |
297 | else | |
298 | obj = PyLong_FromUnsignedLongLong(val); | |
7e4b21b8 TZ |
299 | } |
300 | } | |
c0251485 PT |
301 | if (handler) |
302 | PyTuple_SetItem(t, n++, obj); | |
303 | else | |
304 | PyDict_SetItemString(dict, field->name, obj); | |
305 | ||
7e4b21b8 | 306 | } |
c0251485 PT |
307 | if (!handler) |
308 | PyTuple_SetItem(t, n++, dict); | |
7e4b21b8 TZ |
309 | |
310 | if (_PyTuple_Resize(&t, n) == -1) | |
311 | Py_FatalError("error resizing Python tuple"); | |
312 | ||
c0251485 | 313 | if (handler) { |
7e4b21b8 TZ |
314 | retval = PyObject_CallObject(handler, t); |
315 | if (retval == NULL) | |
316 | handler_call_die(handler_name); | |
317 | } else { | |
318 | handler = PyDict_GetItemString(main_dict, "trace_unhandled"); | |
319 | if (handler && PyCallable_Check(handler)) { | |
7e4b21b8 TZ |
320 | |
321 | retval = PyObject_CallObject(handler, t); | |
322 | if (retval == NULL) | |
323 | handler_call_die("trace_unhandled"); | |
324 | } | |
c0251485 | 325 | Py_DECREF(dict); |
7e4b21b8 TZ |
326 | } |
327 | ||
328 | Py_DECREF(t); | |
329 | } | |
330 | ||
331 | static int run_start_sub(void) | |
332 | { | |
333 | PyObject *handler, *retval; | |
334 | int err = 0; | |
335 | ||
336 | main_module = PyImport_AddModule("__main__"); | |
337 | if (main_module == NULL) | |
338 | return -1; | |
339 | Py_INCREF(main_module); | |
340 | ||
341 | main_dict = PyModule_GetDict(main_module); | |
342 | if (main_dict == NULL) { | |
343 | err = -1; | |
344 | goto error; | |
345 | } | |
346 | Py_INCREF(main_dict); | |
347 | ||
348 | handler = PyDict_GetItemString(main_dict, "trace_begin"); | |
349 | if (handler == NULL || !PyCallable_Check(handler)) | |
350 | goto out; | |
351 | ||
352 | retval = PyObject_CallObject(handler, NULL); | |
353 | if (retval == NULL) | |
354 | handler_call_die("trace_begin"); | |
355 | ||
356 | Py_DECREF(retval); | |
357 | return err; | |
358 | error: | |
359 | Py_XDECREF(main_dict); | |
360 | Py_XDECREF(main_module); | |
361 | out: | |
362 | return err; | |
363 | } | |
364 | ||
365 | /* | |
366 | * Start trace script | |
367 | */ | |
368 | static int python_start_script(const char *script, int argc, const char **argv) | |
369 | { | |
370 | const char **command_line; | |
371 | char buf[PATH_MAX]; | |
372 | int i, err = 0; | |
373 | FILE *fp; | |
374 | ||
375 | command_line = malloc((argc + 1) * sizeof(const char *)); | |
376 | command_line[0] = script; | |
377 | for (i = 1; i < argc + 1; i++) | |
378 | command_line[i] = argv[i - 1]; | |
379 | ||
380 | Py_Initialize(); | |
381 | ||
382 | initperf_trace_context(); | |
383 | ||
384 | PySys_SetArgv(argc + 1, (char **)command_line); | |
385 | ||
386 | fp = fopen(script, "r"); | |
387 | if (!fp) { | |
388 | sprintf(buf, "Can't open python script \"%s\"", script); | |
389 | perror(buf); | |
390 | err = -1; | |
391 | goto error; | |
392 | } | |
393 | ||
394 | err = PyRun_SimpleFile(fp, script); | |
395 | if (err) { | |
396 | fprintf(stderr, "Error running python script %s\n", script); | |
397 | goto error; | |
398 | } | |
399 | ||
400 | err = run_start_sub(); | |
401 | if (err) { | |
402 | fprintf(stderr, "Error starting python script %s\n", script); | |
403 | goto error; | |
404 | } | |
405 | ||
406 | free(command_line); | |
7e4b21b8 TZ |
407 | |
408 | return err; | |
409 | error: | |
410 | Py_Finalize(); | |
411 | free(command_line); | |
412 | ||
413 | return err; | |
414 | } | |
415 | ||
416 | /* | |
417 | * Stop trace script | |
418 | */ | |
419 | static int python_stop_script(void) | |
420 | { | |
421 | PyObject *handler, *retval; | |
422 | int err = 0; | |
423 | ||
424 | handler = PyDict_GetItemString(main_dict, "trace_end"); | |
425 | if (handler == NULL || !PyCallable_Check(handler)) | |
426 | goto out; | |
427 | ||
428 | retval = PyObject_CallObject(handler, NULL); | |
429 | if (retval == NULL) | |
430 | handler_call_die("trace_end"); | |
431 | else | |
432 | Py_DECREF(retval); | |
433 | out: | |
434 | Py_XDECREF(main_dict); | |
435 | Py_XDECREF(main_module); | |
436 | Py_Finalize(); | |
437 | ||
7e4b21b8 TZ |
438 | return err; |
439 | } | |
440 | ||
441 | static int python_generate_script(const char *outfile) | |
442 | { | |
aaf045f7 | 443 | struct event_format *event = NULL; |
7e4b21b8 TZ |
444 | struct format_field *f; |
445 | char fname[PATH_MAX]; | |
446 | int not_first, count; | |
447 | FILE *ofp; | |
448 | ||
449 | sprintf(fname, "%s.py", outfile); | |
450 | ofp = fopen(fname, "w"); | |
451 | if (ofp == NULL) { | |
452 | fprintf(stderr, "couldn't open %s\n", fname); | |
453 | return -1; | |
454 | } | |
133dc4c3 IM |
455 | fprintf(ofp, "# perf script event handlers, " |
456 | "generated by perf script -g python\n"); | |
7e4b21b8 TZ |
457 | |
458 | fprintf(ofp, "# Licensed under the terms of the GNU GPL" | |
459 | " License version 2\n\n"); | |
460 | ||
461 | fprintf(ofp, "# The common_* event handler fields are the most useful " | |
462 | "fields common to\n"); | |
463 | ||
464 | fprintf(ofp, "# all events. They don't necessarily correspond to " | |
465 | "the 'common_*' fields\n"); | |
466 | ||
467 | fprintf(ofp, "# in the format files. Those fields not available as " | |
468 | "handler params can\n"); | |
469 | ||
470 | fprintf(ofp, "# be retrieved using Python functions of the form " | |
471 | "common_*(context).\n"); | |
472 | ||
473 | fprintf(ofp, "# See the perf-trace-python Documentation for the list " | |
474 | "of available functions.\n\n"); | |
475 | ||
476 | fprintf(ofp, "import os\n"); | |
477 | fprintf(ofp, "import sys\n\n"); | |
478 | ||
479 | fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n"); | |
480 | fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n"); | |
481 | fprintf(ofp, "\nfrom perf_trace_context import *\n"); | |
482 | fprintf(ofp, "from Core import *\n\n\n"); | |
483 | ||
484 | fprintf(ofp, "def trace_begin():\n"); | |
485 | fprintf(ofp, "\tprint \"in trace_begin\"\n\n"); | |
486 | ||
487 | fprintf(ofp, "def trace_end():\n"); | |
488 | fprintf(ofp, "\tprint \"in trace_end\"\n\n"); | |
489 | ||
490 | while ((event = trace_find_next_event(event))) { | |
491 | fprintf(ofp, "def %s__%s(", event->system, event->name); | |
492 | fprintf(ofp, "event_name, "); | |
493 | fprintf(ofp, "context, "); | |
494 | fprintf(ofp, "common_cpu,\n"); | |
495 | fprintf(ofp, "\tcommon_secs, "); | |
496 | fprintf(ofp, "common_nsecs, "); | |
497 | fprintf(ofp, "common_pid, "); | |
498 | fprintf(ofp, "common_comm,\n\t"); | |
499 | ||
500 | not_first = 0; | |
501 | count = 0; | |
502 | ||
503 | for (f = event->format.fields; f; f = f->next) { | |
504 | if (not_first++) | |
505 | fprintf(ofp, ", "); | |
506 | if (++count % 5 == 0) | |
507 | fprintf(ofp, "\n\t"); | |
508 | ||
509 | fprintf(ofp, "%s", f->name); | |
510 | } | |
511 | fprintf(ofp, "):\n"); | |
512 | ||
513 | fprintf(ofp, "\t\tprint_header(event_name, common_cpu, " | |
514 | "common_secs, common_nsecs,\n\t\t\t" | |
515 | "common_pid, common_comm)\n\n"); | |
516 | ||
517 | fprintf(ofp, "\t\tprint \""); | |
518 | ||
519 | not_first = 0; | |
520 | count = 0; | |
521 | ||
522 | for (f = event->format.fields; f; f = f->next) { | |
523 | if (not_first++) | |
524 | fprintf(ofp, ", "); | |
525 | if (count && count % 3 == 0) { | |
526 | fprintf(ofp, "\" \\\n\t\t\""); | |
527 | } | |
528 | count++; | |
529 | ||
530 | fprintf(ofp, "%s=", f->name); | |
531 | if (f->flags & FIELD_IS_STRING || | |
532 | f->flags & FIELD_IS_FLAG || | |
533 | f->flags & FIELD_IS_SYMBOLIC) | |
534 | fprintf(ofp, "%%s"); | |
535 | else if (f->flags & FIELD_IS_SIGNED) | |
536 | fprintf(ofp, "%%d"); | |
537 | else | |
538 | fprintf(ofp, "%%u"); | |
539 | } | |
540 | ||
541 | fprintf(ofp, "\\n\" %% \\\n\t\t("); | |
542 | ||
543 | not_first = 0; | |
544 | count = 0; | |
545 | ||
546 | for (f = event->format.fields; f; f = f->next) { | |
547 | if (not_first++) | |
548 | fprintf(ofp, ", "); | |
549 | ||
550 | if (++count % 5 == 0) | |
551 | fprintf(ofp, "\n\t\t"); | |
552 | ||
553 | if (f->flags & FIELD_IS_FLAG) { | |
554 | if ((count - 1) % 5 != 0) { | |
555 | fprintf(ofp, "\n\t\t"); | |
556 | count = 4; | |
557 | } | |
558 | fprintf(ofp, "flag_str(\""); | |
559 | fprintf(ofp, "%s__%s\", ", event->system, | |
560 | event->name); | |
561 | fprintf(ofp, "\"%s\", %s)", f->name, | |
562 | f->name); | |
563 | } else if (f->flags & FIELD_IS_SYMBOLIC) { | |
564 | if ((count - 1) % 5 != 0) { | |
565 | fprintf(ofp, "\n\t\t"); | |
566 | count = 4; | |
567 | } | |
568 | fprintf(ofp, "symbol_str(\""); | |
569 | fprintf(ofp, "%s__%s\", ", event->system, | |
570 | event->name); | |
571 | fprintf(ofp, "\"%s\", %s)", f->name, | |
572 | f->name); | |
573 | } else | |
574 | fprintf(ofp, "%s", f->name); | |
575 | } | |
576 | ||
577 | fprintf(ofp, "),\n\n"); | |
578 | } | |
579 | ||
580 | fprintf(ofp, "def trace_unhandled(event_name, context, " | |
c0251485 | 581 | "event_fields_dict):\n"); |
7e4b21b8 | 582 | |
c0251485 PT |
583 | fprintf(ofp, "\t\tprint ' '.join(['%%s=%%s'%%(k,str(v))" |
584 | "for k,v in sorted(event_fields_dict.items())])\n\n"); | |
7e4b21b8 TZ |
585 | |
586 | fprintf(ofp, "def print_header(" | |
587 | "event_name, cpu, secs, nsecs, pid, comm):\n" | |
588 | "\tprint \"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t" | |
589 | "(event_name, cpu, secs, nsecs, pid, comm),\n"); | |
590 | ||
591 | fclose(ofp); | |
592 | ||
593 | fprintf(stderr, "generated Python script: %s\n", fname); | |
594 | ||
595 | return 0; | |
596 | } | |
597 | ||
598 | struct scripting_ops python_scripting_ops = { | |
599 | .name = "Python", | |
600 | .start_script = python_start_script, | |
601 | .stop_script = python_stop_script, | |
602 | .process_event = python_process_event, | |
603 | .generate_script = python_generate_script, | |
604 | }; |