Commit | Line | Data |
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f7d82350 SR |
1 | /* |
2 | * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> | |
3 | * | |
4 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; | |
8 | * version 2.1 of the License (not later!) | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
7b9f6b40 | 16 | * License along with this program; if not, see <http://www.gnu.org/licenses> |
f7d82350 SR |
17 | * |
18 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
19 | */ | |
20 | #ifndef _PARSE_EVENTS_H | |
21 | #define _PARSE_EVENTS_H | |
22 | ||
1b372ca5 | 23 | #include <stdbool.h> |
f7d82350 SR |
24 | #include <stdarg.h> |
25 | #include <regex.h> | |
91a058ad | 26 | #include <string.h> |
f7d82350 | 27 | |
1d037ca1 IT |
28 | #ifndef __maybe_unused |
29 | #define __maybe_unused __attribute__((unused)) | |
f7d82350 SR |
30 | #endif |
31 | ||
32 | /* ----------------------- trace_seq ----------------------- */ | |
33 | ||
34 | ||
35 | #ifndef TRACE_SEQ_BUF_SIZE | |
36 | #define TRACE_SEQ_BUF_SIZE 4096 | |
37 | #endif | |
38 | ||
39 | #ifndef DEBUG_RECORD | |
40 | #define DEBUG_RECORD 0 | |
41 | #endif | |
42 | ||
1c698186 | 43 | struct pevent_record { |
f7d82350 SR |
44 | unsigned long long ts; |
45 | unsigned long long offset; | |
46 | long long missed_events; /* buffer dropped events before */ | |
47 | int record_size; /* size of binary record */ | |
48 | int size; /* size of data */ | |
49 | void *data; | |
50 | int cpu; | |
51 | int ref_count; | |
52 | int locked; /* Do not free, even if ref_count is zero */ | |
ff1a70e7 | 53 | void *priv; |
f7d82350 | 54 | #if DEBUG_RECORD |
1c698186 SR |
55 | struct pevent_record *prev; |
56 | struct pevent_record *next; | |
f7d82350 SR |
57 | long alloc_addr; |
58 | #endif | |
59 | }; | |
60 | ||
3c6d8d84 NK |
61 | enum trace_seq_fail { |
62 | TRACE_SEQ__GOOD, | |
63 | TRACE_SEQ__BUFFER_POISONED, | |
64 | TRACE_SEQ__MEM_ALLOC_FAILED, | |
65 | }; | |
66 | ||
f7d82350 SR |
67 | /* |
68 | * Trace sequences are used to allow a function to call several other functions | |
69 | * to create a string of data to use (up to a max of PAGE_SIZE). | |
70 | */ | |
71 | ||
72 | struct trace_seq { | |
73 | char *buffer; | |
74 | unsigned int buffer_size; | |
75 | unsigned int len; | |
76 | unsigned int readpos; | |
3c6d8d84 | 77 | enum trace_seq_fail state; |
f7d82350 SR |
78 | }; |
79 | ||
80 | void trace_seq_init(struct trace_seq *s); | |
6a48aec3 | 81 | void trace_seq_reset(struct trace_seq *s); |
f7d82350 SR |
82 | void trace_seq_destroy(struct trace_seq *s); |
83 | ||
84 | extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...) | |
85 | __attribute__ ((format (printf, 2, 3))); | |
86 | extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args) | |
87 | __attribute__ ((format (printf, 2, 0))); | |
88 | ||
89 | extern int trace_seq_puts(struct trace_seq *s, const char *str); | |
90 | extern int trace_seq_putc(struct trace_seq *s, unsigned char c); | |
91 | ||
92 | extern void trace_seq_terminate(struct trace_seq *s); | |
93 | ||
94 | extern int trace_seq_do_printf(struct trace_seq *s); | |
95 | ||
96 | ||
97 | /* ----------------------- pevent ----------------------- */ | |
98 | ||
99 | struct pevent; | |
100 | struct event_format; | |
101 | ||
102 | typedef int (*pevent_event_handler_func)(struct trace_seq *s, | |
1c698186 | 103 | struct pevent_record *record, |
f7d82350 SR |
104 | struct event_format *event, |
105 | void *context); | |
106 | ||
107 | typedef int (*pevent_plugin_load_func)(struct pevent *pevent); | |
8d0c2224 | 108 | typedef int (*pevent_plugin_unload_func)(struct pevent *pevent); |
f7d82350 | 109 | |
5827f2fa SR |
110 | struct pevent_plugin_option { |
111 | struct pevent_plugin_option *next; | |
f7d82350 SR |
112 | void *handle; |
113 | char *file; | |
114 | char *name; | |
115 | char *plugin_alias; | |
116 | char *description; | |
117 | char *value; | |
ff1a70e7 | 118 | void *priv; |
f7d82350 SR |
119 | int set; |
120 | }; | |
121 | ||
122 | /* | |
123 | * Plugin hooks that can be called: | |
124 | * | |
125 | * PEVENT_PLUGIN_LOADER: (required) | |
126 | * The function name to initialized the plugin. | |
127 | * | |
128 | * int PEVENT_PLUGIN_LOADER(struct pevent *pevent) | |
129 | * | |
130 | * PEVENT_PLUGIN_UNLOADER: (optional) | |
131 | * The function called just before unloading | |
132 | * | |
8d0c2224 | 133 | * int PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) |
f7d82350 SR |
134 | * |
135 | * PEVENT_PLUGIN_OPTIONS: (optional) | |
136 | * Plugin options that can be set before loading | |
137 | * | |
5827f2fa | 138 | * struct pevent_plugin_option PEVENT_PLUGIN_OPTIONS[] = { |
f7d82350 SR |
139 | * { |
140 | * .name = "option-name", | |
141 | * .plugin_alias = "overide-file-name", (optional) | |
142 | * .description = "description of option to show users", | |
143 | * }, | |
144 | * { | |
145 | * .name = NULL, | |
146 | * }, | |
147 | * }; | |
148 | * | |
149 | * Array must end with .name = NULL; | |
150 | * | |
151 | * | |
152 | * .plugin_alias is used to give a shorter name to access | |
153 | * the vairable. Useful if a plugin handles more than one event. | |
154 | * | |
155 | * PEVENT_PLUGIN_ALIAS: (optional) | |
156 | * The name to use for finding options (uses filename if not defined) | |
157 | */ | |
158 | #define PEVENT_PLUGIN_LOADER pevent_plugin_loader | |
159 | #define PEVENT_PLUGIN_UNLOADER pevent_plugin_unloader | |
160 | #define PEVENT_PLUGIN_OPTIONS pevent_plugin_options | |
161 | #define PEVENT_PLUGIN_ALIAS pevent_plugin_alias | |
162 | #define _MAKE_STR(x) #x | |
163 | #define MAKE_STR(x) _MAKE_STR(x) | |
164 | #define PEVENT_PLUGIN_LOADER_NAME MAKE_STR(PEVENT_PLUGIN_LOADER) | |
165 | #define PEVENT_PLUGIN_UNLOADER_NAME MAKE_STR(PEVENT_PLUGIN_UNLOADER) | |
166 | #define PEVENT_PLUGIN_OPTIONS_NAME MAKE_STR(PEVENT_PLUGIN_OPTIONS) | |
167 | #define PEVENT_PLUGIN_ALIAS_NAME MAKE_STR(PEVENT_PLUGIN_ALIAS) | |
168 | ||
169 | #define NSECS_PER_SEC 1000000000ULL | |
170 | #define NSECS_PER_USEC 1000ULL | |
171 | ||
172 | enum format_flags { | |
173 | FIELD_IS_ARRAY = 1, | |
174 | FIELD_IS_POINTER = 2, | |
175 | FIELD_IS_SIGNED = 4, | |
176 | FIELD_IS_STRING = 8, | |
177 | FIELD_IS_DYNAMIC = 16, | |
178 | FIELD_IS_LONG = 32, | |
668fe01f SR |
179 | FIELD_IS_FLAG = 64, |
180 | FIELD_IS_SYMBOLIC = 128, | |
f7d82350 SR |
181 | }; |
182 | ||
183 | struct format_field { | |
184 | struct format_field *next; | |
185 | struct event_format *event; | |
186 | char *type; | |
187 | char *name; | |
188 | int offset; | |
189 | int size; | |
190 | unsigned int arraylen; | |
191 | unsigned int elementsize; | |
192 | unsigned long flags; | |
193 | }; | |
194 | ||
195 | struct format { | |
196 | int nr_common; | |
197 | int nr_fields; | |
198 | struct format_field *common_fields; | |
199 | struct format_field *fields; | |
200 | }; | |
201 | ||
202 | struct print_arg_atom { | |
203 | char *atom; | |
204 | }; | |
205 | ||
206 | struct print_arg_string { | |
207 | char *string; | |
208 | int offset; | |
209 | }; | |
210 | ||
473a778a SRRH |
211 | struct print_arg_bitmask { |
212 | char *bitmask; | |
213 | int offset; | |
214 | }; | |
215 | ||
f7d82350 SR |
216 | struct print_arg_field { |
217 | char *name; | |
218 | struct format_field *field; | |
219 | }; | |
220 | ||
221 | struct print_flag_sym { | |
222 | struct print_flag_sym *next; | |
223 | char *value; | |
224 | char *str; | |
225 | }; | |
226 | ||
227 | struct print_arg_typecast { | |
228 | char *type; | |
229 | struct print_arg *item; | |
230 | }; | |
231 | ||
232 | struct print_arg_flags { | |
233 | struct print_arg *field; | |
234 | char *delim; | |
235 | struct print_flag_sym *flags; | |
236 | }; | |
237 | ||
238 | struct print_arg_symbol { | |
239 | struct print_arg *field; | |
240 | struct print_flag_sym *symbols; | |
241 | }; | |
242 | ||
e080e6f1 NK |
243 | struct print_arg_hex { |
244 | struct print_arg *field; | |
245 | struct print_arg *size; | |
246 | }; | |
247 | ||
f7d82350 SR |
248 | struct print_arg_dynarray { |
249 | struct format_field *field; | |
250 | struct print_arg *index; | |
251 | }; | |
252 | ||
253 | struct print_arg; | |
254 | ||
255 | struct print_arg_op { | |
256 | char *op; | |
257 | int prio; | |
258 | struct print_arg *left; | |
259 | struct print_arg *right; | |
260 | }; | |
261 | ||
262 | struct pevent_function_handler; | |
263 | ||
264 | struct print_arg_func { | |
265 | struct pevent_function_handler *func; | |
266 | struct print_arg *args; | |
267 | }; | |
268 | ||
269 | enum print_arg_type { | |
270 | PRINT_NULL, | |
271 | PRINT_ATOM, | |
272 | PRINT_FIELD, | |
273 | PRINT_FLAGS, | |
274 | PRINT_SYMBOL, | |
e080e6f1 | 275 | PRINT_HEX, |
f7d82350 SR |
276 | PRINT_TYPE, |
277 | PRINT_STRING, | |
278 | PRINT_BSTRING, | |
279 | PRINT_DYNAMIC_ARRAY, | |
280 | PRINT_OP, | |
281 | PRINT_FUNC, | |
473a778a | 282 | PRINT_BITMASK, |
f7d82350 SR |
283 | }; |
284 | ||
285 | struct print_arg { | |
286 | struct print_arg *next; | |
287 | enum print_arg_type type; | |
288 | union { | |
289 | struct print_arg_atom atom; | |
290 | struct print_arg_field field; | |
291 | struct print_arg_typecast typecast; | |
292 | struct print_arg_flags flags; | |
293 | struct print_arg_symbol symbol; | |
e080e6f1 | 294 | struct print_arg_hex hex; |
f7d82350 SR |
295 | struct print_arg_func func; |
296 | struct print_arg_string string; | |
473a778a | 297 | struct print_arg_bitmask bitmask; |
f7d82350 SR |
298 | struct print_arg_op op; |
299 | struct print_arg_dynarray dynarray; | |
300 | }; | |
301 | }; | |
302 | ||
303 | struct print_fmt { | |
304 | char *format; | |
305 | struct print_arg *args; | |
306 | }; | |
307 | ||
308 | struct event_format { | |
309 | struct pevent *pevent; | |
310 | char *name; | |
311 | int id; | |
312 | int flags; | |
313 | struct format format; | |
314 | struct print_fmt print_fmt; | |
315 | char *system; | |
316 | pevent_event_handler_func handler; | |
317 | void *context; | |
318 | }; | |
319 | ||
320 | enum { | |
321 | EVENT_FL_ISFTRACE = 0x01, | |
322 | EVENT_FL_ISPRINT = 0x02, | |
323 | EVENT_FL_ISBPRINT = 0x04, | |
324 | EVENT_FL_ISFUNCENT = 0x10, | |
325 | EVENT_FL_ISFUNCRET = 0x20, | |
c6c2b960 SR |
326 | EVENT_FL_NOHANDLE = 0x40, |
327 | EVENT_FL_PRINTRAW = 0x80, | |
f7d82350 SR |
328 | |
329 | EVENT_FL_FAILED = 0x80000000 | |
330 | }; | |
331 | ||
332 | enum event_sort_type { | |
333 | EVENT_SORT_ID, | |
334 | EVENT_SORT_NAME, | |
335 | EVENT_SORT_SYSTEM, | |
336 | }; | |
337 | ||
338 | enum event_type { | |
339 | EVENT_ERROR, | |
340 | EVENT_NONE, | |
341 | EVENT_SPACE, | |
342 | EVENT_NEWLINE, | |
343 | EVENT_OP, | |
344 | EVENT_DELIM, | |
345 | EVENT_ITEM, | |
346 | EVENT_DQUOTE, | |
347 | EVENT_SQUOTE, | |
348 | }; | |
349 | ||
350 | typedef unsigned long long (*pevent_func_handler)(struct trace_seq *s, | |
351 | unsigned long long *args); | |
352 | ||
353 | enum pevent_func_arg_type { | |
354 | PEVENT_FUNC_ARG_VOID, | |
355 | PEVENT_FUNC_ARG_INT, | |
356 | PEVENT_FUNC_ARG_LONG, | |
357 | PEVENT_FUNC_ARG_STRING, | |
358 | PEVENT_FUNC_ARG_PTR, | |
359 | PEVENT_FUNC_ARG_MAX_TYPES | |
360 | }; | |
361 | ||
4dc1024a SR |
362 | enum pevent_flag { |
363 | PEVENT_NSEC_OUTPUT = 1, /* output in NSECS */ | |
a7c3196c SRRH |
364 | PEVENT_DISABLE_SYS_PLUGINS = 1 << 1, |
365 | PEVENT_DISABLE_PLUGINS = 1 << 2, | |
4dc1024a SR |
366 | }; |
367 | ||
2f197b9d NK |
368 | #define PEVENT_ERRORS \ |
369 | _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \ | |
370 | _PE(PARSE_EVENT_FAILED, "failed to parse event"), \ | |
371 | _PE(READ_ID_FAILED, "failed to read event id"), \ | |
372 | _PE(READ_FORMAT_FAILED, "failed to read event format"), \ | |
373 | _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \ | |
67ed939c | 374 | _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\ |
605b8fda | 375 | _PE(INVALID_ARG_TYPE, "invalid argument type"), \ |
41e12e58 NK |
376 | _PE(INVALID_EXP_TYPE, "invalid expression type"), \ |
377 | _PE(INVALID_OP_TYPE, "invalid operator type"), \ | |
605b8fda | 378 | _PE(INVALID_EVENT_NAME, "invalid event name"), \ |
02d62d6d NK |
379 | _PE(EVENT_NOT_FOUND, "no event found"), \ |
380 | _PE(SYNTAX_ERROR, "syntax error"), \ | |
381 | _PE(ILLEGAL_RVALUE, "illegal rvalue"), \ | |
382 | _PE(ILLEGAL_LVALUE, "illegal lvalue for string comparison"), \ | |
383 | _PE(INVALID_REGEX, "regex did not compute"), \ | |
384 | _PE(ILLEGAL_STRING_CMP, "illegal comparison for string"), \ | |
7bb73553 NK |
385 | _PE(ILLEGAL_INTEGER_CMP,"illegal comparison for integer"), \ |
386 | _PE(REPARENT_NOT_OP, "cannot reparent other than OP"), \ | |
387 | _PE(REPARENT_FAILED, "failed to reparent filter OP"), \ | |
c8ea690d | 388 | _PE(BAD_FILTER_ARG, "bad arg in filter tree"), \ |
42d6194d NK |
389 | _PE(UNEXPECTED_TYPE, "unexpected type (not a value)"), \ |
390 | _PE(ILLEGAL_TOKEN, "illegal token"), \ | |
391 | _PE(INVALID_PAREN, "open parenthesis cannot come here"), \ | |
392 | _PE(UNBALANCED_PAREN, "unbalanced number of parenthesis"), \ | |
69c770a6 | 393 | _PE(UNKNOWN_TOKEN, "unknown token"), \ |
41e12e58 NK |
394 | _PE(FILTER_NOT_FOUND, "no filter found"), \ |
395 | _PE(NOT_A_NUMBER, "must have number field"), \ | |
396 | _PE(NO_FILTER, "no filters exists"), \ | |
397 | _PE(FILTER_MISS, "record does not match to filter") | |
2f197b9d NK |
398 | |
399 | #undef _PE | |
400 | #define _PE(__code, __str) PEVENT_ERRNO__ ## __code | |
bffddffd NK |
401 | enum pevent_errno { |
402 | PEVENT_ERRNO__SUCCESS = 0, | |
41e12e58 | 403 | PEVENT_ERRNO__FILTER_MATCH = PEVENT_ERRNO__SUCCESS, |
bffddffd NK |
404 | |
405 | /* | |
406 | * Choose an arbitrary negative big number not to clash with standard | |
407 | * errno since SUS requires the errno has distinct positive values. | |
408 | * See 'Issue 6' in the link below. | |
409 | * | |
410 | * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html | |
411 | */ | |
412 | __PEVENT_ERRNO__START = -100000, | |
413 | ||
2f197b9d | 414 | PEVENT_ERRORS, |
bffddffd NK |
415 | |
416 | __PEVENT_ERRNO__END, | |
417 | }; | |
2f197b9d | 418 | #undef _PE |
bffddffd | 419 | |
c877bbd8 JO |
420 | struct plugin_list; |
421 | ||
5827f2fa SR |
422 | #define INVALID_PLUGIN_LIST_OPTION ((char **)((unsigned long)-1)) |
423 | ||
c877bbd8 | 424 | struct plugin_list *traceevent_load_plugins(struct pevent *pevent); |
8d0c2224 NK |
425 | void traceevent_unload_plugins(struct plugin_list *plugin_list, |
426 | struct pevent *pevent); | |
5827f2fa SR |
427 | char **traceevent_plugin_list_options(void); |
428 | void traceevent_plugin_free_options_list(char **list); | |
429 | int traceevent_plugin_add_options(const char *name, | |
430 | struct pevent_plugin_option *options); | |
431 | void traceevent_plugin_remove_options(struct pevent_plugin_option *options); | |
432 | void traceevent_print_plugins(struct trace_seq *s, | |
433 | const char *prefix, const char *suffix, | |
434 | const struct plugin_list *list); | |
c877bbd8 | 435 | |
f7d82350 SR |
436 | struct cmdline; |
437 | struct cmdline_list; | |
438 | struct func_map; | |
439 | struct func_list; | |
440 | struct event_handler; | |
441 | ||
442 | struct pevent { | |
443 | int ref_count; | |
444 | ||
445 | int header_page_ts_offset; | |
446 | int header_page_ts_size; | |
447 | int header_page_size_offset; | |
448 | int header_page_size_size; | |
449 | int header_page_data_offset; | |
450 | int header_page_data_size; | |
451 | int header_page_overwrite; | |
452 | ||
453 | int file_bigendian; | |
454 | int host_bigendian; | |
455 | ||
456 | int latency_format; | |
457 | ||
458 | int old_format; | |
459 | ||
460 | int cpus; | |
461 | int long_size; | |
012ac692 | 462 | int page_size; |
f7d82350 SR |
463 | |
464 | struct cmdline *cmdlines; | |
465 | struct cmdline_list *cmdlist; | |
466 | int cmdline_count; | |
467 | ||
468 | struct func_map *func_map; | |
469 | struct func_list *funclist; | |
470 | unsigned int func_count; | |
471 | ||
472 | struct printk_map *printk_map; | |
473 | struct printk_list *printklist; | |
474 | unsigned int printk_count; | |
475 | ||
4dc1024a | 476 | |
f7d82350 SR |
477 | struct event_format **events; |
478 | int nr_events; | |
479 | struct event_format **sort_events; | |
480 | enum event_sort_type last_type; | |
481 | ||
482 | int type_offset; | |
483 | int type_size; | |
484 | ||
485 | int pid_offset; | |
486 | int pid_size; | |
487 | ||
488 | int pc_offset; | |
489 | int pc_size; | |
490 | ||
491 | int flags_offset; | |
492 | int flags_size; | |
493 | ||
494 | int ld_offset; | |
495 | int ld_size; | |
496 | ||
497 | int print_raw; | |
498 | ||
499 | int test_filters; | |
500 | ||
4dc1024a SR |
501 | int flags; |
502 | ||
f7d82350 SR |
503 | struct format_field *bprint_ip_field; |
504 | struct format_field *bprint_fmt_field; | |
505 | struct format_field *bprint_buf_field; | |
506 | ||
507 | struct event_handler *handlers; | |
508 | struct pevent_function_handler *func_handlers; | |
509 | ||
510 | /* cache */ | |
511 | struct event_format *last_event; | |
1b372ca5 YY |
512 | |
513 | char *trace_clock; | |
f7d82350 SR |
514 | }; |
515 | ||
4dc1024a SR |
516 | static inline void pevent_set_flag(struct pevent *pevent, int flag) |
517 | { | |
518 | pevent->flags |= flag; | |
519 | } | |
520 | ||
f7d82350 SR |
521 | static inline unsigned short |
522 | __data2host2(struct pevent *pevent, unsigned short data) | |
523 | { | |
524 | unsigned short swap; | |
525 | ||
526 | if (pevent->host_bigendian == pevent->file_bigendian) | |
527 | return data; | |
528 | ||
529 | swap = ((data & 0xffULL) << 8) | | |
530 | ((data & (0xffULL << 8)) >> 8); | |
531 | ||
532 | return swap; | |
533 | } | |
534 | ||
535 | static inline unsigned int | |
536 | __data2host4(struct pevent *pevent, unsigned int data) | |
537 | { | |
538 | unsigned int swap; | |
539 | ||
540 | if (pevent->host_bigendian == pevent->file_bigendian) | |
541 | return data; | |
542 | ||
543 | swap = ((data & 0xffULL) << 24) | | |
544 | ((data & (0xffULL << 8)) << 8) | | |
545 | ((data & (0xffULL << 16)) >> 8) | | |
546 | ((data & (0xffULL << 24)) >> 24); | |
547 | ||
548 | return swap; | |
549 | } | |
550 | ||
551 | static inline unsigned long long | |
552 | __data2host8(struct pevent *pevent, unsigned long long data) | |
553 | { | |
554 | unsigned long long swap; | |
555 | ||
556 | if (pevent->host_bigendian == pevent->file_bigendian) | |
557 | return data; | |
558 | ||
559 | swap = ((data & 0xffULL) << 56) | | |
560 | ((data & (0xffULL << 8)) << 40) | | |
561 | ((data & (0xffULL << 16)) << 24) | | |
562 | ((data & (0xffULL << 24)) << 8) | | |
563 | ((data & (0xffULL << 32)) >> 8) | | |
564 | ((data & (0xffULL << 40)) >> 24) | | |
565 | ((data & (0xffULL << 48)) >> 40) | | |
566 | ((data & (0xffULL << 56)) >> 56); | |
567 | ||
568 | return swap; | |
569 | } | |
570 | ||
571 | #define data2host2(pevent, ptr) __data2host2(pevent, *(unsigned short *)(ptr)) | |
572 | #define data2host4(pevent, ptr) __data2host4(pevent, *(unsigned int *)(ptr)) | |
573 | #define data2host8(pevent, ptr) \ | |
574 | ({ \ | |
575 | unsigned long long __val; \ | |
576 | \ | |
577 | memcpy(&__val, (ptr), sizeof(unsigned long long)); \ | |
578 | __data2host8(pevent, __val); \ | |
579 | }) | |
580 | ||
91a058ad JO |
581 | static inline int traceevent_host_bigendian(void) |
582 | { | |
583 | unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 }; | |
584 | unsigned int val; | |
585 | ||
586 | memcpy(&val, str, 4); | |
587 | return val == 0x01020304; | |
588 | } | |
589 | ||
f7d82350 SR |
590 | /* taken from kernel/trace/trace.h */ |
591 | enum trace_flag_type { | |
592 | TRACE_FLAG_IRQS_OFF = 0x01, | |
593 | TRACE_FLAG_IRQS_NOSUPPORT = 0x02, | |
594 | TRACE_FLAG_NEED_RESCHED = 0x04, | |
595 | TRACE_FLAG_HARDIRQ = 0x08, | |
596 | TRACE_FLAG_SOFTIRQ = 0x10, | |
597 | }; | |
598 | ||
599 | int pevent_register_comm(struct pevent *pevent, const char *comm, int pid); | |
1b372ca5 | 600 | void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock); |
f7d82350 SR |
601 | int pevent_register_function(struct pevent *pevent, char *name, |
602 | unsigned long long addr, char *mod); | |
18900af8 | 603 | int pevent_register_print_string(struct pevent *pevent, const char *fmt, |
f7d82350 SR |
604 | unsigned long long addr); |
605 | int pevent_pid_is_registered(struct pevent *pevent, int pid); | |
606 | ||
607 | void pevent_print_event(struct pevent *pevent, struct trace_seq *s, | |
1b372ca5 | 608 | struct pevent_record *record, bool use_trace_clock); |
f7d82350 SR |
609 | |
610 | int pevent_parse_header_page(struct pevent *pevent, char *buf, unsigned long size, | |
611 | int long_size); | |
612 | ||
bffddffd NK |
613 | enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf, |
614 | unsigned long size, const char *sys); | |
71ad9583 JO |
615 | enum pevent_errno pevent_parse_format(struct pevent *pevent, |
616 | struct event_format **eventp, | |
617 | const char *buf, | |
2b29175d ACM |
618 | unsigned long size, const char *sys); |
619 | void pevent_free_format(struct event_format *event); | |
f7d82350 SR |
620 | |
621 | void *pevent_get_field_raw(struct trace_seq *s, struct event_format *event, | |
1c698186 | 622 | const char *name, struct pevent_record *record, |
f7d82350 SR |
623 | int *len, int err); |
624 | ||
625 | int pevent_get_field_val(struct trace_seq *s, struct event_format *event, | |
1c698186 | 626 | const char *name, struct pevent_record *record, |
f7d82350 SR |
627 | unsigned long long *val, int err); |
628 | int pevent_get_common_field_val(struct trace_seq *s, struct event_format *event, | |
1c698186 | 629 | const char *name, struct pevent_record *record, |
f7d82350 SR |
630 | unsigned long long *val, int err); |
631 | int pevent_get_any_field_val(struct trace_seq *s, struct event_format *event, | |
1c698186 | 632 | const char *name, struct pevent_record *record, |
f7d82350 SR |
633 | unsigned long long *val, int err); |
634 | ||
635 | int pevent_print_num_field(struct trace_seq *s, const char *fmt, | |
636 | struct event_format *event, const char *name, | |
1c698186 | 637 | struct pevent_record *record, int err); |
f7d82350 | 638 | |
6d862b8c SR |
639 | int pevent_print_func_field(struct trace_seq *s, const char *fmt, |
640 | struct event_format *event, const char *name, | |
641 | struct pevent_record *record, int err); | |
642 | ||
79d5adf0 NK |
643 | int pevent_register_event_handler(struct pevent *pevent, int id, |
644 | const char *sys_name, const char *event_name, | |
f7d82350 | 645 | pevent_event_handler_func func, void *context); |
ad13701d NK |
646 | int pevent_unregister_event_handler(struct pevent *pevent, int id, |
647 | const char *sys_name, const char *event_name, | |
648 | pevent_event_handler_func func, void *context); | |
f7d82350 SR |
649 | int pevent_register_print_function(struct pevent *pevent, |
650 | pevent_func_handler func, | |
651 | enum pevent_func_arg_type ret_type, | |
652 | char *name, ...); | |
20c7e5ab NK |
653 | int pevent_unregister_print_function(struct pevent *pevent, |
654 | pevent_func_handler func, char *name); | |
f7d82350 SR |
655 | |
656 | struct format_field *pevent_find_common_field(struct event_format *event, const char *name); | |
657 | struct format_field *pevent_find_field(struct event_format *event, const char *name); | |
658 | struct format_field *pevent_find_any_field(struct event_format *event, const char *name); | |
659 | ||
660 | const char *pevent_find_function(struct pevent *pevent, unsigned long long addr); | |
661 | unsigned long long | |
662 | pevent_find_function_address(struct pevent *pevent, unsigned long long addr); | |
663 | unsigned long long pevent_read_number(struct pevent *pevent, const void *ptr, int size); | |
664 | int pevent_read_number_field(struct format_field *field, const void *data, | |
665 | unsigned long long *value); | |
666 | ||
667 | struct event_format *pevent_find_event(struct pevent *pevent, int id); | |
668 | ||
669 | struct event_format * | |
670 | pevent_find_event_by_name(struct pevent *pevent, const char *sys, const char *name); | |
671 | ||
672 | void pevent_data_lat_fmt(struct pevent *pevent, | |
1c698186 SR |
673 | struct trace_seq *s, struct pevent_record *record); |
674 | int pevent_data_type(struct pevent *pevent, struct pevent_record *rec); | |
f7d82350 | 675 | struct event_format *pevent_data_event_from_type(struct pevent *pevent, int type); |
1c698186 | 676 | int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec); |
f7d82350 SR |
677 | const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid); |
678 | void pevent_event_info(struct trace_seq *s, struct event_format *event, | |
1c698186 | 679 | struct pevent_record *record); |
2f197b9d NK |
680 | int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum, |
681 | char *buf, size_t buflen); | |
f7d82350 SR |
682 | |
683 | struct event_format **pevent_list_events(struct pevent *pevent, enum event_sort_type); | |
684 | struct format_field **pevent_event_common_fields(struct event_format *event); | |
685 | struct format_field **pevent_event_fields(struct event_format *event); | |
686 | ||
687 | static inline int pevent_get_cpus(struct pevent *pevent) | |
688 | { | |
689 | return pevent->cpus; | |
690 | } | |
691 | ||
692 | static inline void pevent_set_cpus(struct pevent *pevent, int cpus) | |
693 | { | |
694 | pevent->cpus = cpus; | |
695 | } | |
696 | ||
697 | static inline int pevent_get_long_size(struct pevent *pevent) | |
698 | { | |
699 | return pevent->long_size; | |
700 | } | |
701 | ||
702 | static inline void pevent_set_long_size(struct pevent *pevent, int long_size) | |
703 | { | |
704 | pevent->long_size = long_size; | |
705 | } | |
706 | ||
012ac692 NK |
707 | static inline int pevent_get_page_size(struct pevent *pevent) |
708 | { | |
709 | return pevent->page_size; | |
710 | } | |
711 | ||
712 | static inline void pevent_set_page_size(struct pevent *pevent, int _page_size) | |
713 | { | |
714 | pevent->page_size = _page_size; | |
715 | } | |
716 | ||
f7d82350 SR |
717 | static inline int pevent_is_file_bigendian(struct pevent *pevent) |
718 | { | |
719 | return pevent->file_bigendian; | |
720 | } | |
721 | ||
722 | static inline void pevent_set_file_bigendian(struct pevent *pevent, int endian) | |
723 | { | |
724 | pevent->file_bigendian = endian; | |
725 | } | |
726 | ||
727 | static inline int pevent_is_host_bigendian(struct pevent *pevent) | |
728 | { | |
729 | return pevent->host_bigendian; | |
730 | } | |
731 | ||
732 | static inline void pevent_set_host_bigendian(struct pevent *pevent, int endian) | |
733 | { | |
734 | pevent->host_bigendian = endian; | |
735 | } | |
736 | ||
737 | static inline int pevent_is_latency_format(struct pevent *pevent) | |
738 | { | |
739 | return pevent->latency_format; | |
740 | } | |
741 | ||
742 | static inline void pevent_set_latency_format(struct pevent *pevent, int lat) | |
743 | { | |
744 | pevent->latency_format = lat; | |
745 | } | |
746 | ||
747 | struct pevent *pevent_alloc(void); | |
748 | void pevent_free(struct pevent *pevent); | |
749 | void pevent_ref(struct pevent *pevent); | |
750 | void pevent_unref(struct pevent *pevent); | |
751 | ||
752 | /* access to the internal parser */ | |
753 | void pevent_buffer_init(const char *buf, unsigned long long size); | |
754 | enum event_type pevent_read_token(char **tok); | |
755 | void pevent_free_token(char *token); | |
756 | int pevent_peek_char(void); | |
757 | const char *pevent_get_input_buf(void); | |
758 | unsigned long long pevent_get_input_buf_ptr(void); | |
759 | ||
760 | /* for debugging */ | |
761 | void pevent_print_funcs(struct pevent *pevent); | |
762 | void pevent_print_printk(struct pevent *pevent); | |
763 | ||
764 | /* ----------------------- filtering ----------------------- */ | |
765 | ||
766 | enum filter_boolean_type { | |
767 | FILTER_FALSE, | |
768 | FILTER_TRUE, | |
769 | }; | |
770 | ||
771 | enum filter_op_type { | |
772 | FILTER_OP_AND = 1, | |
773 | FILTER_OP_OR, | |
774 | FILTER_OP_NOT, | |
775 | }; | |
776 | ||
777 | enum filter_cmp_type { | |
778 | FILTER_CMP_NONE, | |
779 | FILTER_CMP_EQ, | |
780 | FILTER_CMP_NE, | |
781 | FILTER_CMP_GT, | |
782 | FILTER_CMP_LT, | |
783 | FILTER_CMP_GE, | |
784 | FILTER_CMP_LE, | |
785 | FILTER_CMP_MATCH, | |
786 | FILTER_CMP_NOT_MATCH, | |
787 | FILTER_CMP_REGEX, | |
788 | FILTER_CMP_NOT_REGEX, | |
789 | }; | |
790 | ||
791 | enum filter_exp_type { | |
792 | FILTER_EXP_NONE, | |
793 | FILTER_EXP_ADD, | |
794 | FILTER_EXP_SUB, | |
795 | FILTER_EXP_MUL, | |
796 | FILTER_EXP_DIV, | |
797 | FILTER_EXP_MOD, | |
798 | FILTER_EXP_RSHIFT, | |
799 | FILTER_EXP_LSHIFT, | |
800 | FILTER_EXP_AND, | |
801 | FILTER_EXP_OR, | |
802 | FILTER_EXP_XOR, | |
803 | FILTER_EXP_NOT, | |
804 | }; | |
805 | ||
806 | enum filter_arg_type { | |
807 | FILTER_ARG_NONE, | |
808 | FILTER_ARG_BOOLEAN, | |
809 | FILTER_ARG_VALUE, | |
810 | FILTER_ARG_FIELD, | |
811 | FILTER_ARG_EXP, | |
812 | FILTER_ARG_OP, | |
813 | FILTER_ARG_NUM, | |
814 | FILTER_ARG_STR, | |
815 | }; | |
816 | ||
817 | enum filter_value_type { | |
818 | FILTER_NUMBER, | |
819 | FILTER_STRING, | |
820 | FILTER_CHAR | |
821 | }; | |
822 | ||
823 | struct fliter_arg; | |
824 | ||
825 | struct filter_arg_boolean { | |
826 | enum filter_boolean_type value; | |
827 | }; | |
828 | ||
829 | struct filter_arg_field { | |
830 | struct format_field *field; | |
831 | }; | |
832 | ||
833 | struct filter_arg_value { | |
834 | enum filter_value_type type; | |
835 | union { | |
836 | char *str; | |
837 | unsigned long long val; | |
838 | }; | |
839 | }; | |
840 | ||
841 | struct filter_arg_op { | |
842 | enum filter_op_type type; | |
843 | struct filter_arg *left; | |
844 | struct filter_arg *right; | |
845 | }; | |
846 | ||
847 | struct filter_arg_exp { | |
848 | enum filter_exp_type type; | |
849 | struct filter_arg *left; | |
850 | struct filter_arg *right; | |
851 | }; | |
852 | ||
853 | struct filter_arg_num { | |
854 | enum filter_cmp_type type; | |
855 | struct filter_arg *left; | |
856 | struct filter_arg *right; | |
857 | }; | |
858 | ||
859 | struct filter_arg_str { | |
860 | enum filter_cmp_type type; | |
861 | struct format_field *field; | |
862 | char *val; | |
863 | char *buffer; | |
864 | regex_t reg; | |
865 | }; | |
866 | ||
867 | struct filter_arg { | |
868 | enum filter_arg_type type; | |
869 | union { | |
668fe01f | 870 | struct filter_arg_boolean boolean; |
f7d82350 SR |
871 | struct filter_arg_field field; |
872 | struct filter_arg_value value; | |
873 | struct filter_arg_op op; | |
874 | struct filter_arg_exp exp; | |
875 | struct filter_arg_num num; | |
876 | struct filter_arg_str str; | |
877 | }; | |
878 | }; | |
879 | ||
880 | struct filter_type { | |
881 | int event_id; | |
882 | struct event_format *event; | |
883 | struct filter_arg *filter; | |
884 | }; | |
885 | ||
bf19b82e NK |
886 | #define PEVENT_FILTER_ERROR_BUFSZ 1024 |
887 | ||
f7d82350 SR |
888 | struct event_filter { |
889 | struct pevent *pevent; | |
890 | int filters; | |
891 | struct filter_type *event_filters; | |
bf19b82e | 892 | char error_buffer[PEVENT_FILTER_ERROR_BUFSZ]; |
f7d82350 SR |
893 | }; |
894 | ||
895 | struct event_filter *pevent_filter_alloc(struct pevent *pevent); | |
896 | ||
41e12e58 | 897 | /* for backward compatibility */ |
45087935 SR |
898 | #define FILTER_NONE PEVENT_ERRNO__NO_FILTER |
899 | #define FILTER_NOEXIST PEVENT_ERRNO__FILTER_NOT_FOUND | |
41e12e58 NK |
900 | #define FILTER_MISS PEVENT_ERRNO__FILTER_MISS |
901 | #define FILTER_MATCH PEVENT_ERRNO__FILTER_MATCH | |
f7d82350 SR |
902 | |
903 | enum filter_trivial_type { | |
904 | FILTER_TRIVIAL_FALSE, | |
905 | FILTER_TRIVIAL_TRUE, | |
906 | FILTER_TRIVIAL_BOTH, | |
907 | }; | |
908 | ||
69c770a6 NK |
909 | enum pevent_errno pevent_filter_add_filter_str(struct event_filter *filter, |
910 | const char *filter_str); | |
f7d82350 | 911 | |
41e12e58 NK |
912 | enum pevent_errno pevent_filter_match(struct event_filter *filter, |
913 | struct pevent_record *record); | |
f7d82350 | 914 | |
bf19b82e NK |
915 | int pevent_filter_strerror(struct event_filter *filter, enum pevent_errno err, |
916 | char *buf, size_t buflen); | |
917 | ||
f7d82350 SR |
918 | int pevent_event_filtered(struct event_filter *filter, |
919 | int event_id); | |
920 | ||
921 | void pevent_filter_reset(struct event_filter *filter); | |
922 | ||
7ef2e813 | 923 | int pevent_filter_clear_trivial(struct event_filter *filter, |
f7d82350 SR |
924 | enum filter_trivial_type type); |
925 | ||
926 | void pevent_filter_free(struct event_filter *filter); | |
927 | ||
928 | char *pevent_filter_make_string(struct event_filter *filter, int event_id); | |
929 | ||
930 | int pevent_filter_remove_event(struct event_filter *filter, | |
931 | int event_id); | |
932 | ||
933 | int pevent_filter_event_has_trivial(struct event_filter *filter, | |
934 | int event_id, | |
935 | enum filter_trivial_type type); | |
936 | ||
937 | int pevent_filter_copy(struct event_filter *dest, struct event_filter *source); | |
938 | ||
939 | int pevent_update_trivial(struct event_filter *dest, struct event_filter *source, | |
940 | enum filter_trivial_type type); | |
941 | ||
942 | int pevent_filter_compare(struct event_filter *filter1, struct event_filter *filter2); | |
943 | ||
944 | #endif /* _PARSE_EVENTS_H */ |