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
16 * License along with this program; if not, see <http://www.gnu.org/licenses>
17 *
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
19 */
20 #ifndef _PARSE_EVENTS_H
21 #define _PARSE_EVENTS_H
22
23 #include <stdbool.h>
24 #include <stdarg.h>
25 #include <stdio.h>
26 #include <regex.h>
27 #include <string.h>
28
29 #include "trace-seq.h"
30
31 #ifndef __maybe_unused
32 #define __maybe_unused __attribute__((unused))
33 #endif
34
35 #ifndef DEBUG_RECORD
36 #define DEBUG_RECORD 0
37 #endif
38
39 struct tep_record {
40 unsigned long long ts;
41 unsigned long long offset;
42 long long missed_events; /* buffer dropped events before */
43 int record_size; /* size of binary record */
44 int size; /* size of data */
45 void *data;
46 int cpu;
47 int ref_count;
48 int locked; /* Do not free, even if ref_count is zero */
49 void *priv;
50 #if DEBUG_RECORD
51 struct tep_record *prev;
52 struct tep_record *next;
53 long alloc_addr;
54 #endif
55 };
56
57 /* ----------------------- tep ----------------------- */
58
59 struct tep_handle;
60 struct tep_event;
61
62 typedef int (*tep_event_handler_func)(struct trace_seq *s,
63 struct tep_record *record,
64 struct tep_event *event,
65 void *context);
66
67 typedef int (*tep_plugin_load_func)(struct tep_handle *tep);
68 typedef int (*tep_plugin_unload_func)(struct tep_handle *tep);
69
70 struct tep_plugin_option {
71 struct tep_plugin_option *next;
72 void *handle;
73 char *file;
74 char *name;
75 char *plugin_alias;
76 char *description;
77 const char *value;
78 void *priv;
79 int set;
80 };
81
82 /*
83 * Plugin hooks that can be called:
84 *
85 * TEP_PLUGIN_LOADER: (required)
86 * The function name to initialized the plugin.
87 *
88 * int TEP_PLUGIN_LOADER(struct tep_handle *tep)
89 *
90 * TEP_PLUGIN_UNLOADER: (optional)
91 * The function called just before unloading
92 *
93 * int TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
94 *
95 * TEP_PLUGIN_OPTIONS: (optional)
96 * Plugin options that can be set before loading
97 *
98 * struct tep_plugin_option TEP_PLUGIN_OPTIONS[] = {
99 * {
100 * .name = "option-name",
101 * .plugin_alias = "override-file-name", (optional)
102 * .description = "description of option to show users",
103 * },
104 * {
105 * .name = NULL,
106 * },
107 * };
108 *
109 * Array must end with .name = NULL;
110 *
111 *
112 * .plugin_alias is used to give a shorter name to access
113 * the vairable. Useful if a plugin handles more than one event.
114 *
115 * If .value is not set, then it is considered a boolean and only
116 * .set will be processed. If .value is defined, then it is considered
117 * a string option and .set will be ignored.
118 *
119 * TEP_PLUGIN_ALIAS: (optional)
120 * The name to use for finding options (uses filename if not defined)
121 */
122 #define TEP_PLUGIN_LOADER tep_plugin_loader
123 #define TEP_PLUGIN_UNLOADER tep_plugin_unloader
124 #define TEP_PLUGIN_OPTIONS tep_plugin_options
125 #define TEP_PLUGIN_ALIAS tep_plugin_alias
126 #define _MAKE_STR(x) #x
127 #define MAKE_STR(x) _MAKE_STR(x)
128 #define TEP_PLUGIN_LOADER_NAME MAKE_STR(TEP_PLUGIN_LOADER)
129 #define TEP_PLUGIN_UNLOADER_NAME MAKE_STR(TEP_PLUGIN_UNLOADER)
130 #define TEP_PLUGIN_OPTIONS_NAME MAKE_STR(TEP_PLUGIN_OPTIONS)
131 #define TEP_PLUGIN_ALIAS_NAME MAKE_STR(TEP_PLUGIN_ALIAS)
132
133 enum tep_format_flags {
134 TEP_FIELD_IS_ARRAY = 1,
135 TEP_FIELD_IS_POINTER = 2,
136 TEP_FIELD_IS_SIGNED = 4,
137 TEP_FIELD_IS_STRING = 8,
138 TEP_FIELD_IS_DYNAMIC = 16,
139 TEP_FIELD_IS_LONG = 32,
140 TEP_FIELD_IS_FLAG = 64,
141 TEP_FIELD_IS_SYMBOLIC = 128,
142 };
143
144 struct tep_format_field {
145 struct tep_format_field *next;
146 struct tep_event *event;
147 char *type;
148 char *name;
149 char *alias;
150 int offset;
151 int size;
152 unsigned int arraylen;
153 unsigned int elementsize;
154 unsigned long flags;
155 };
156
157 struct tep_format {
158 int nr_common;
159 int nr_fields;
160 struct tep_format_field *common_fields;
161 struct tep_format_field *fields;
162 };
163
164 struct tep_print_arg_atom {
165 char *atom;
166 };
167
168 struct tep_print_arg_string {
169 char *string;
170 int offset;
171 };
172
173 struct tep_print_arg_bitmask {
174 char *bitmask;
175 int offset;
176 };
177
178 struct tep_print_arg_field {
179 char *name;
180 struct tep_format_field *field;
181 };
182
183 struct tep_print_flag_sym {
184 struct tep_print_flag_sym *next;
185 char *value;
186 char *str;
187 };
188
189 struct tep_print_arg_typecast {
190 char *type;
191 struct tep_print_arg *item;
192 };
193
194 struct tep_print_arg_flags {
195 struct tep_print_arg *field;
196 char *delim;
197 struct tep_print_flag_sym *flags;
198 };
199
200 struct tep_print_arg_symbol {
201 struct tep_print_arg *field;
202 struct tep_print_flag_sym *symbols;
203 };
204
205 struct tep_print_arg_hex {
206 struct tep_print_arg *field;
207 struct tep_print_arg *size;
208 };
209
210 struct tep_print_arg_int_array {
211 struct tep_print_arg *field;
212 struct tep_print_arg *count;
213 struct tep_print_arg *el_size;
214 };
215
216 struct tep_print_arg_dynarray {
217 struct tep_format_field *field;
218 struct tep_print_arg *index;
219 };
220
221 struct tep_print_arg;
222
223 struct tep_print_arg_op {
224 char *op;
225 int prio;
226 struct tep_print_arg *left;
227 struct tep_print_arg *right;
228 };
229
230 struct tep_function_handler;
231
232 struct tep_print_arg_func {
233 struct tep_function_handler *func;
234 struct tep_print_arg *args;
235 };
236
237 enum tep_print_arg_type {
238 TEP_PRINT_NULL,
239 TEP_PRINT_ATOM,
240 TEP_PRINT_FIELD,
241 TEP_PRINT_FLAGS,
242 TEP_PRINT_SYMBOL,
243 TEP_PRINT_HEX,
244 TEP_PRINT_INT_ARRAY,
245 TEP_PRINT_TYPE,
246 TEP_PRINT_STRING,
247 TEP_PRINT_BSTRING,
248 TEP_PRINT_DYNAMIC_ARRAY,
249 TEP_PRINT_OP,
250 TEP_PRINT_FUNC,
251 TEP_PRINT_BITMASK,
252 TEP_PRINT_DYNAMIC_ARRAY_LEN,
253 TEP_PRINT_HEX_STR,
254 };
255
256 struct tep_print_arg {
257 struct tep_print_arg *next;
258 enum tep_print_arg_type type;
259 union {
260 struct tep_print_arg_atom atom;
261 struct tep_print_arg_field field;
262 struct tep_print_arg_typecast typecast;
263 struct tep_print_arg_flags flags;
264 struct tep_print_arg_symbol symbol;
265 struct tep_print_arg_hex hex;
266 struct tep_print_arg_int_array int_array;
267 struct tep_print_arg_func func;
268 struct tep_print_arg_string string;
269 struct tep_print_arg_bitmask bitmask;
270 struct tep_print_arg_op op;
271 struct tep_print_arg_dynarray dynarray;
272 };
273 };
274
275 struct tep_print_fmt {
276 char *format;
277 struct tep_print_arg *args;
278 };
279
280 struct tep_event {
281 struct tep_handle *tep;
282 char *name;
283 int id;
284 int flags;
285 struct tep_format format;
286 struct tep_print_fmt print_fmt;
287 char *system;
288 tep_event_handler_func handler;
289 void *context;
290 };
291
292 enum {
293 TEP_EVENT_FL_ISFTRACE = 0x01,
294 TEP_EVENT_FL_ISPRINT = 0x02,
295 TEP_EVENT_FL_ISBPRINT = 0x04,
296 TEP_EVENT_FL_ISFUNCENT = 0x10,
297 TEP_EVENT_FL_ISFUNCRET = 0x20,
298 TEP_EVENT_FL_NOHANDLE = 0x40,
299 TEP_EVENT_FL_PRINTRAW = 0x80,
300
301 TEP_EVENT_FL_FAILED = 0x80000000
302 };
303
304 enum tep_event_sort_type {
305 TEP_EVENT_SORT_ID,
306 TEP_EVENT_SORT_NAME,
307 TEP_EVENT_SORT_SYSTEM,
308 };
309
310 enum tep_event_type {
311 TEP_EVENT_ERROR,
312 TEP_EVENT_NONE,
313 TEP_EVENT_SPACE,
314 TEP_EVENT_NEWLINE,
315 TEP_EVENT_OP,
316 TEP_EVENT_DELIM,
317 TEP_EVENT_ITEM,
318 TEP_EVENT_DQUOTE,
319 TEP_EVENT_SQUOTE,
320 };
321
322 typedef unsigned long long (*tep_func_handler)(struct trace_seq *s,
323 unsigned long long *args);
324
325 enum tep_func_arg_type {
326 TEP_FUNC_ARG_VOID,
327 TEP_FUNC_ARG_INT,
328 TEP_FUNC_ARG_LONG,
329 TEP_FUNC_ARG_STRING,
330 TEP_FUNC_ARG_PTR,
331 TEP_FUNC_ARG_MAX_TYPES
332 };
333
334 enum tep_flag {
335 TEP_NSEC_OUTPUT = 1, /* output in NSECS */
336 TEP_DISABLE_SYS_PLUGINS = 1 << 1,
337 TEP_DISABLE_PLUGINS = 1 << 2,
338 };
339
340 #define TEP_ERRORS \
341 _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \
342 _PE(PARSE_EVENT_FAILED, "failed to parse event"), \
343 _PE(READ_ID_FAILED, "failed to read event id"), \
344 _PE(READ_FORMAT_FAILED, "failed to read event format"), \
345 _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \
346 _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\
347 _PE(INVALID_ARG_TYPE, "invalid argument type"), \
348 _PE(INVALID_EXP_TYPE, "invalid expression type"), \
349 _PE(INVALID_OP_TYPE, "invalid operator type"), \
350 _PE(INVALID_EVENT_NAME, "invalid event name"), \
351 _PE(EVENT_NOT_FOUND, "no event found"), \
352 _PE(SYNTAX_ERROR, "syntax error"), \
353 _PE(ILLEGAL_RVALUE, "illegal rvalue"), \
354 _PE(ILLEGAL_LVALUE, "illegal lvalue for string comparison"), \
355 _PE(INVALID_REGEX, "regex did not compute"), \
356 _PE(ILLEGAL_STRING_CMP, "illegal comparison for string"), \
357 _PE(ILLEGAL_INTEGER_CMP,"illegal comparison for integer"), \
358 _PE(REPARENT_NOT_OP, "cannot reparent other than OP"), \
359 _PE(REPARENT_FAILED, "failed to reparent filter OP"), \
360 _PE(BAD_FILTER_ARG, "bad arg in filter tree"), \
361 _PE(UNEXPECTED_TYPE, "unexpected type (not a value)"), \
362 _PE(ILLEGAL_TOKEN, "illegal token"), \
363 _PE(INVALID_PAREN, "open parenthesis cannot come here"), \
364 _PE(UNBALANCED_PAREN, "unbalanced number of parenthesis"), \
365 _PE(UNKNOWN_TOKEN, "unknown token"), \
366 _PE(FILTER_NOT_FOUND, "no filter found"), \
367 _PE(NOT_A_NUMBER, "must have number field"), \
368 _PE(NO_FILTER, "no filters exists"), \
369 _PE(FILTER_MISS, "record does not match to filter")
370
371 #undef _PE
372 #define _PE(__code, __str) TEP_ERRNO__ ## __code
373 enum tep_errno {
374 TEP_ERRNO__SUCCESS = 0,
375 TEP_ERRNO__FILTER_MATCH = TEP_ERRNO__SUCCESS,
376
377 /*
378 * Choose an arbitrary negative big number not to clash with standard
379 * errno since SUS requires the errno has distinct positive values.
380 * See 'Issue 6' in the link below.
381 *
382 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
383 */
384 __TEP_ERRNO__START = -100000,
385
386 TEP_ERRORS,
387
388 __TEP_ERRNO__END,
389 };
390 #undef _PE
391
392 struct tep_plugin_list;
393
394 #define INVALID_PLUGIN_LIST_OPTION ((char **)((unsigned long)-1))
395
396 struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep);
397 void tep_unload_plugins(struct tep_plugin_list *plugin_list,
398 struct tep_handle *tep);
399 char **tep_plugin_list_options(void);
400 void tep_plugin_free_options_list(char **list);
401 int tep_plugin_add_options(const char *name,
402 struct tep_plugin_option *options);
403 void tep_plugin_remove_options(struct tep_plugin_option *options);
404 void tep_print_plugins(struct trace_seq *s,
405 const char *prefix, const char *suffix,
406 const struct tep_plugin_list *list);
407
408 /* tep_handle */
409 typedef char *(tep_func_resolver_t)(void *priv,
410 unsigned long long *addrp, char **modp);
411 void tep_set_flag(struct tep_handle *tep, int flag);
412 void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
413 bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags);
414
tep_is_bigendian(void)415 static inline int tep_is_bigendian(void)
416 {
417 unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
418 unsigned int val;
419
420 memcpy(&val, str, 4);
421 return val == 0x01020304;
422 }
423
424 /* taken from kernel/trace/trace.h */
425 enum trace_flag_type {
426 TRACE_FLAG_IRQS_OFF = 0x01,
427 TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
428 TRACE_FLAG_NEED_RESCHED = 0x04,
429 TRACE_FLAG_HARDIRQ = 0x08,
430 TRACE_FLAG_SOFTIRQ = 0x10,
431 };
432
433 int tep_set_function_resolver(struct tep_handle *tep,
434 tep_func_resolver_t *func, void *priv);
435 void tep_reset_function_resolver(struct tep_handle *tep);
436 int tep_register_comm(struct tep_handle *tep, const char *comm, int pid);
437 int tep_override_comm(struct tep_handle *tep, const char *comm, int pid);
438 int tep_register_function(struct tep_handle *tep, char *name,
439 unsigned long long addr, char *mod);
440 int tep_register_print_string(struct tep_handle *tep, const char *fmt,
441 unsigned long long addr);
442 bool tep_is_pid_registered(struct tep_handle *tep, int pid);
443
444 struct tep_event *tep_get_event(struct tep_handle *tep, int index);
445
446 #define TEP_PRINT_INFO "INFO"
447 #define TEP_PRINT_INFO_RAW "INFO_RAW"
448 #define TEP_PRINT_COMM "COMM"
449 #define TEP_PRINT_LATENCY "LATENCY"
450 #define TEP_PRINT_NAME "NAME"
451 #define TEP_PRINT_PID 1U
452 #define TEP_PRINT_TIME 2U
453 #define TEP_PRINT_CPU 3U
454
455 void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
456 struct tep_record *record, const char *fmt, ...)
457 __attribute__ ((format (printf, 4, 5)));
458
459 int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
460 int long_size);
461
462 enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
463 unsigned long size, const char *sys);
464 enum tep_errno tep_parse_format(struct tep_handle *tep,
465 struct tep_event **eventp,
466 const char *buf,
467 unsigned long size, const char *sys);
468
469 void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event,
470 const char *name, struct tep_record *record,
471 int *len, int err);
472
473 int tep_get_field_val(struct trace_seq *s, struct tep_event *event,
474 const char *name, struct tep_record *record,
475 unsigned long long *val, int err);
476 int tep_get_common_field_val(struct trace_seq *s, struct tep_event *event,
477 const char *name, struct tep_record *record,
478 unsigned long long *val, int err);
479 int tep_get_any_field_val(struct trace_seq *s, struct tep_event *event,
480 const char *name, struct tep_record *record,
481 unsigned long long *val, int err);
482
483 int tep_print_num_field(struct trace_seq *s, const char *fmt,
484 struct tep_event *event, const char *name,
485 struct tep_record *record, int err);
486
487 int tep_print_func_field(struct trace_seq *s, const char *fmt,
488 struct tep_event *event, const char *name,
489 struct tep_record *record, int err);
490
491 enum tep_reg_handler {
492 TEP_REGISTER_SUCCESS = 0,
493 TEP_REGISTER_SUCCESS_OVERWRITE,
494 };
495
496 int tep_register_event_handler(struct tep_handle *tep, int id,
497 const char *sys_name, const char *event_name,
498 tep_event_handler_func func, void *context);
499 int tep_unregister_event_handler(struct tep_handle *tep, int id,
500 const char *sys_name, const char *event_name,
501 tep_event_handler_func func, void *context);
502 int tep_register_print_function(struct tep_handle *tep,
503 tep_func_handler func,
504 enum tep_func_arg_type ret_type,
505 char *name, ...);
506 int tep_unregister_print_function(struct tep_handle *tep,
507 tep_func_handler func, char *name);
508
509 struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name);
510 struct tep_format_field *tep_find_field(struct tep_event *event, const char *name);
511 struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name);
512
513 const char *tep_find_function(struct tep_handle *tep, unsigned long long addr);
514 unsigned long long
515 tep_find_function_address(struct tep_handle *tep, unsigned long long addr);
516 unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size);
517 int tep_read_number_field(struct tep_format_field *field, const void *data,
518 unsigned long long *value);
519
520 struct tep_event *tep_get_first_event(struct tep_handle *tep);
521 int tep_get_events_count(struct tep_handle *tep);
522 struct tep_event *tep_find_event(struct tep_handle *tep, int id);
523
524 struct tep_event *
525 tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name);
526 struct tep_event *
527 tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record);
528
529 int tep_data_type(struct tep_handle *tep, struct tep_record *rec);
530 int tep_data_pid(struct tep_handle *tep, struct tep_record *rec);
531 int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec);
532 int tep_data_flags(struct tep_handle *tep, struct tep_record *rec);
533 const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid);
534 struct tep_cmdline;
535 struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
536 struct tep_cmdline *next);
537 int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline);
538
539 void tep_print_field(struct trace_seq *s, void *data,
540 struct tep_format_field *field);
541 void tep_print_fields(struct trace_seq *s, void *data,
542 int size __maybe_unused, struct tep_event *event);
543 int tep_strerror(struct tep_handle *tep, enum tep_errno errnum,
544 char *buf, size_t buflen);
545
546 struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type);
547 struct tep_event **tep_list_events_copy(struct tep_handle *tep,
548 enum tep_event_sort_type);
549 struct tep_format_field **tep_event_common_fields(struct tep_event *event);
550 struct tep_format_field **tep_event_fields(struct tep_event *event);
551
552 enum tep_endian {
553 TEP_LITTLE_ENDIAN = 0,
554 TEP_BIG_ENDIAN
555 };
556 int tep_get_cpus(struct tep_handle *tep);
557 void tep_set_cpus(struct tep_handle *tep, int cpus);
558 int tep_get_long_size(struct tep_handle *tep);
559 void tep_set_long_size(struct tep_handle *tep, int long_size);
560 int tep_get_page_size(struct tep_handle *tep);
561 void tep_set_page_size(struct tep_handle *tep, int _page_size);
562 bool tep_is_file_bigendian(struct tep_handle *tep);
563 void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian);
564 bool tep_is_local_bigendian(struct tep_handle *tep);
565 void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian);
566 int tep_get_header_page_size(struct tep_handle *tep);
567 int tep_get_header_timestamp_size(struct tep_handle *tep);
568 bool tep_is_old_format(struct tep_handle *tep);
569 void tep_set_test_filters(struct tep_handle *tep, int test_filters);
570
571 struct tep_handle *tep_alloc(void);
572 void tep_free(struct tep_handle *tep);
573 void tep_ref(struct tep_handle *tep);
574 void tep_unref(struct tep_handle *tep);
575 int tep_get_ref(struct tep_handle *tep);
576
577 /* access to the internal parser */
578 void tep_buffer_init(const char *buf, unsigned long long size);
579 enum tep_event_type tep_read_token(char **tok);
580 void tep_free_token(char *token);
581 int tep_peek_char(void);
582 const char *tep_get_input_buf(void);
583 unsigned long long tep_get_input_buf_ptr(void);
584
585 /* for debugging */
586 void tep_print_funcs(struct tep_handle *tep);
587 void tep_print_printk(struct tep_handle *tep);
588
589 /* ----------------------- filtering ----------------------- */
590
591 enum tep_filter_boolean_type {
592 TEP_FILTER_FALSE,
593 TEP_FILTER_TRUE,
594 };
595
596 enum tep_filter_op_type {
597 TEP_FILTER_OP_AND = 1,
598 TEP_FILTER_OP_OR,
599 TEP_FILTER_OP_NOT,
600 };
601
602 enum tep_filter_cmp_type {
603 TEP_FILTER_CMP_NONE,
604 TEP_FILTER_CMP_EQ,
605 TEP_FILTER_CMP_NE,
606 TEP_FILTER_CMP_GT,
607 TEP_FILTER_CMP_LT,
608 TEP_FILTER_CMP_GE,
609 TEP_FILTER_CMP_LE,
610 TEP_FILTER_CMP_MATCH,
611 TEP_FILTER_CMP_NOT_MATCH,
612 TEP_FILTER_CMP_REGEX,
613 TEP_FILTER_CMP_NOT_REGEX,
614 };
615
616 enum tep_filter_exp_type {
617 TEP_FILTER_EXP_NONE,
618 TEP_FILTER_EXP_ADD,
619 TEP_FILTER_EXP_SUB,
620 TEP_FILTER_EXP_MUL,
621 TEP_FILTER_EXP_DIV,
622 TEP_FILTER_EXP_MOD,
623 TEP_FILTER_EXP_RSHIFT,
624 TEP_FILTER_EXP_LSHIFT,
625 TEP_FILTER_EXP_AND,
626 TEP_FILTER_EXP_OR,
627 TEP_FILTER_EXP_XOR,
628 TEP_FILTER_EXP_NOT,
629 };
630
631 enum tep_filter_arg_type {
632 TEP_FILTER_ARG_NONE,
633 TEP_FILTER_ARG_BOOLEAN,
634 TEP_FILTER_ARG_VALUE,
635 TEP_FILTER_ARG_FIELD,
636 TEP_FILTER_ARG_EXP,
637 TEP_FILTER_ARG_OP,
638 TEP_FILTER_ARG_NUM,
639 TEP_FILTER_ARG_STR,
640 };
641
642 enum tep_filter_value_type {
643 TEP_FILTER_NUMBER,
644 TEP_FILTER_STRING,
645 TEP_FILTER_CHAR
646 };
647
648 struct tep_filter_arg;
649
650 struct tep_filter_arg_boolean {
651 enum tep_filter_boolean_type value;
652 };
653
654 struct tep_filter_arg_field {
655 struct tep_format_field *field;
656 };
657
658 struct tep_filter_arg_value {
659 enum tep_filter_value_type type;
660 union {
661 char *str;
662 unsigned long long val;
663 };
664 };
665
666 struct tep_filter_arg_op {
667 enum tep_filter_op_type type;
668 struct tep_filter_arg *left;
669 struct tep_filter_arg *right;
670 };
671
672 struct tep_filter_arg_exp {
673 enum tep_filter_exp_type type;
674 struct tep_filter_arg *left;
675 struct tep_filter_arg *right;
676 };
677
678 struct tep_filter_arg_num {
679 enum tep_filter_cmp_type type;
680 struct tep_filter_arg *left;
681 struct tep_filter_arg *right;
682 };
683
684 struct tep_filter_arg_str {
685 enum tep_filter_cmp_type type;
686 struct tep_format_field *field;
687 char *val;
688 char *buffer;
689 regex_t reg;
690 };
691
692 struct tep_filter_arg {
693 enum tep_filter_arg_type type;
694 union {
695 struct tep_filter_arg_boolean boolean;
696 struct tep_filter_arg_field field;
697 struct tep_filter_arg_value value;
698 struct tep_filter_arg_op op;
699 struct tep_filter_arg_exp exp;
700 struct tep_filter_arg_num num;
701 struct tep_filter_arg_str str;
702 };
703 };
704
705 struct tep_filter_type {
706 int event_id;
707 struct tep_event *event;
708 struct tep_filter_arg *filter;
709 };
710
711 #define TEP_FILTER_ERROR_BUFSZ 1024
712
713 struct tep_event_filter {
714 struct tep_handle *tep;
715 int filters;
716 struct tep_filter_type *event_filters;
717 char error_buffer[TEP_FILTER_ERROR_BUFSZ];
718 };
719
720 struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep);
721
722 /* for backward compatibility */
723 #define FILTER_NONE TEP_ERRNO__NO_FILTER
724 #define FILTER_NOEXIST TEP_ERRNO__FILTER_NOT_FOUND
725 #define FILTER_MISS TEP_ERRNO__FILTER_MISS
726 #define FILTER_MATCH TEP_ERRNO__FILTER_MATCH
727
728 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
729 const char *filter_str);
730
731 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
732 struct tep_record *record);
733
734 int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
735 char *buf, size_t buflen);
736
737 int tep_event_filtered(struct tep_event_filter *filter,
738 int event_id);
739
740 void tep_filter_reset(struct tep_event_filter *filter);
741
742 void tep_filter_free(struct tep_event_filter *filter);
743
744 char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
745
746 int tep_filter_remove_event(struct tep_event_filter *filter,
747 int event_id);
748
749 int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
750
751 int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
752
753 #endif /* _PARSE_EVENTS_H */
754
