1 /* SPDX-License-Identifier: LGPL-2.1 */
2 /*
3 * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
4 *
5 */
6 #ifndef _PARSE_EVENTS_H
7 #define _PARSE_EVENTS_H
8
9 #include <stdbool.h>
10 #include <stdarg.h>
11 #include <stdio.h>
12 #include <regex.h>
13 #include <string.h>
14
15 #include "trace-seq.h"
16
17 #ifndef __maybe_unused
18 #define __maybe_unused __attribute__((unused))
19 #endif
20
21 #ifndef DEBUG_RECORD
22 #define DEBUG_RECORD 0
23 #endif
24
25 struct tep_record {
26 unsigned long long ts;
27 unsigned long long offset;
28 long long missed_events; /* buffer dropped events before */
29 int record_size; /* size of binary record */
30 int size; /* size of data */
31 void *data;
32 int cpu;
33 int ref_count;
34 int locked; /* Do not free, even if ref_count is zero */
35 void *priv;
36 #if DEBUG_RECORD
37 struct tep_record *prev;
38 struct tep_record *next;
39 long alloc_addr;
40 #endif
41 };
42
43 /* ----------------------- tep ----------------------- */
44
45 struct tep_handle;
46 struct tep_event;
47
48 typedef int (*tep_event_handler_func)(struct trace_seq *s,
49 struct tep_record *record,
50 struct tep_event *event,
51 void *context);
52
53 typedef int (*tep_plugin_load_func)(struct tep_handle *tep);
54 typedef int (*tep_plugin_unload_func)(struct tep_handle *tep);
55
56 struct tep_plugin_option {
57 struct tep_plugin_option *next;
58 void *handle;
59 char *file;
60 char *name;
61 char *plugin_alias;
62 char *description;
63 const char *value;
64 void *priv;
65 int set;
66 };
67
68 /*
69 * Plugin hooks that can be called:
70 *
71 * TEP_PLUGIN_LOADER: (required)
72 * The function name to initialized the plugin.
73 *
74 * int TEP_PLUGIN_LOADER(struct tep_handle *tep)
75 *
76 * TEP_PLUGIN_UNLOADER: (optional)
77 * The function called just before unloading
78 *
79 * int TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
80 *
81 * TEP_PLUGIN_OPTIONS: (optional)
82 * Plugin options that can be set before loading
83 *
84 * struct tep_plugin_option TEP_PLUGIN_OPTIONS[] = {
85 * {
86 * .name = "option-name",
87 * .plugin_alias = "override-file-name", (optional)
88 * .description = "description of option to show users",
89 * },
90 * {
91 * .name = NULL,
92 * },
93 * };
94 *
95 * Array must end with .name = NULL;
96 *
97 *
98 * .plugin_alias is used to give a shorter name to access
99 * the vairable. Useful if a plugin handles more than one event.
100 *
101 * If .value is not set, then it is considered a boolean and only
102 * .set will be processed. If .value is defined, then it is considered
103 * a string option and .set will be ignored.
104 *
105 * TEP_PLUGIN_ALIAS: (optional)
106 * The name to use for finding options (uses filename if not defined)
107 */
108 #define TEP_PLUGIN_LOADER tep_plugin_loader
109 #define TEP_PLUGIN_UNLOADER tep_plugin_unloader
110 #define TEP_PLUGIN_OPTIONS tep_plugin_options
111 #define TEP_PLUGIN_ALIAS tep_plugin_alias
112 #define _MAKE_STR(x) #x
113 #define MAKE_STR(x) _MAKE_STR(x)
114 #define TEP_PLUGIN_LOADER_NAME MAKE_STR(TEP_PLUGIN_LOADER)
115 #define TEP_PLUGIN_UNLOADER_NAME MAKE_STR(TEP_PLUGIN_UNLOADER)
116 #define TEP_PLUGIN_OPTIONS_NAME MAKE_STR(TEP_PLUGIN_OPTIONS)
117 #define TEP_PLUGIN_ALIAS_NAME MAKE_STR(TEP_PLUGIN_ALIAS)
118
119 enum tep_format_flags {
120 TEP_FIELD_IS_ARRAY = 1,
121 TEP_FIELD_IS_POINTER = 2,
122 TEP_FIELD_IS_SIGNED = 4,
123 TEP_FIELD_IS_STRING = 8,
124 TEP_FIELD_IS_DYNAMIC = 16,
125 TEP_FIELD_IS_LONG = 32,
126 TEP_FIELD_IS_FLAG = 64,
127 TEP_FIELD_IS_SYMBOLIC = 128,
128 TEP_FIELD_IS_RELATIVE = 256,
129 };
130
131 struct tep_format_field {
132 struct tep_format_field *next;
133 struct tep_event *event;
134 char *type;
135 char *name;
136 char *alias;
137 int offset;
138 int size;
139 unsigned int arraylen;
140 unsigned int elementsize;
141 unsigned long flags;
142 };
143
144 struct tep_format {
145 int nr_common;
146 int nr_fields;
147 struct tep_format_field *common_fields;
148 struct tep_format_field *fields;
149 };
150
151 struct tep_print_arg_atom {
152 char *atom;
153 };
154
155 struct tep_print_arg_string {
156 char *string;
157 struct tep_format_field *field;
158 };
159
160 struct tep_print_arg_bitmask {
161 char *bitmask;
162 struct tep_format_field *field;
163 };
164
165 struct tep_print_arg_field {
166 char *name;
167 struct tep_format_field *field;
168 };
169
170 struct tep_print_flag_sym {
171 struct tep_print_flag_sym *next;
172 char *value;
173 char *str;
174 };
175
176 struct tep_print_arg_typecast {
177 char *type;
178 struct tep_print_arg *item;
179 };
180
181 struct tep_print_arg_flags {
182 struct tep_print_arg *field;
183 char *delim;
184 struct tep_print_flag_sym *flags;
185 };
186
187 struct tep_print_arg_symbol {
188 struct tep_print_arg *field;
189 struct tep_print_flag_sym *symbols;
190 };
191
192 struct tep_print_arg_hex {
193 struct tep_print_arg *field;
194 struct tep_print_arg *size;
195 };
196
197 struct tep_print_arg_int_array {
198 struct tep_print_arg *field;
199 struct tep_print_arg *count;
200 struct tep_print_arg *el_size;
201 };
202
203 struct tep_print_arg_dynarray {
204 struct tep_format_field *field;
205 struct tep_print_arg *index;
206 };
207
208 struct tep_print_arg;
209
210 struct tep_print_arg_op {
211 char *op;
212 int prio;
213 struct tep_print_arg *left;
214 struct tep_print_arg *right;
215 };
216
217 struct tep_function_handler;
218
219 struct tep_print_arg_func {
220 struct tep_function_handler *func;
221 struct tep_print_arg *args;
222 };
223
224 enum tep_print_arg_type {
225 TEP_PRINT_NULL,
226 TEP_PRINT_ATOM,
227 TEP_PRINT_FIELD,
228 TEP_PRINT_FLAGS,
229 TEP_PRINT_SYMBOL,
230 TEP_PRINT_HEX,
231 TEP_PRINT_INT_ARRAY,
232 TEP_PRINT_TYPE,
233 TEP_PRINT_STRING,
234 TEP_PRINT_BSTRING,
235 TEP_PRINT_DYNAMIC_ARRAY,
236 TEP_PRINT_OP,
237 TEP_PRINT_FUNC,
238 TEP_PRINT_BITMASK,
239 TEP_PRINT_DYNAMIC_ARRAY_LEN,
240 TEP_PRINT_HEX_STR,
241 };
242
243 struct tep_print_arg {
244 struct tep_print_arg *next;
245 enum tep_print_arg_type type;
246 union {
247 struct tep_print_arg_atom atom;
248 struct tep_print_arg_field field;
249 struct tep_print_arg_typecast typecast;
250 struct tep_print_arg_flags flags;
251 struct tep_print_arg_symbol symbol;
252 struct tep_print_arg_hex hex;
253 struct tep_print_arg_int_array int_array;
254 struct tep_print_arg_func func;
255 struct tep_print_arg_string string;
256 struct tep_print_arg_bitmask bitmask;
257 struct tep_print_arg_op op;
258 struct tep_print_arg_dynarray dynarray;
259 };
260 };
261
262 struct tep_print_parse;
263
264 struct tep_print_fmt {
265 char *format;
266 struct tep_print_arg *args;
267 struct tep_print_parse *print_cache;
268 };
269
270 struct tep_event {
271 struct tep_handle *tep;
272 char *name;
273 int id;
274 int flags;
275 struct tep_format format;
276 struct tep_print_fmt print_fmt;
277 char *system;
278 tep_event_handler_func handler;
279 void *context;
280 };
281
282 enum {
283 TEP_EVENT_FL_ISFTRACE = 0x01,
284 TEP_EVENT_FL_ISPRINT = 0x02,
285 TEP_EVENT_FL_ISBPRINT = 0x04,
286 TEP_EVENT_FL_ISFUNCENT = 0x10,
287 TEP_EVENT_FL_ISFUNCRET = 0x20,
288 TEP_EVENT_FL_NOHANDLE = 0x40,
289 TEP_EVENT_FL_PRINTRAW = 0x80,
290
291 TEP_EVENT_FL_FAILED = 0x80000000
292 };
293
294 enum tep_event_sort_type {
295 TEP_EVENT_SORT_ID,
296 TEP_EVENT_SORT_NAME,
297 TEP_EVENT_SORT_SYSTEM,
298 };
299
300 enum tep_event_type {
301 TEP_EVENT_ERROR,
302 TEP_EVENT_NONE,
303 TEP_EVENT_SPACE,
304 TEP_EVENT_NEWLINE,
305 TEP_EVENT_OP,
306 TEP_EVENT_DELIM,
307 TEP_EVENT_ITEM,
308 TEP_EVENT_DQUOTE,
309 TEP_EVENT_SQUOTE,
310 };
311
312 typedef unsigned long long (*tep_func_handler)(struct trace_seq *s,
313 unsigned long long *args);
314
315 enum tep_func_arg_type {
316 TEP_FUNC_ARG_VOID,
317 TEP_FUNC_ARG_INT,
318 TEP_FUNC_ARG_LONG,
319 TEP_FUNC_ARG_STRING,
320 TEP_FUNC_ARG_PTR,
321 TEP_FUNC_ARG_MAX_TYPES
322 };
323
324 enum tep_flag {
325 TEP_NSEC_OUTPUT = 1, /* output in NSECS */
326 TEP_DISABLE_SYS_PLUGINS = 1 << 1,
327 TEP_DISABLE_PLUGINS = 1 << 2,
328 };
329
330 #define TEP_ERRORS \
331 _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \
332 _PE(PARSE_EVENT_FAILED, "failed to parse event"), \
333 _PE(READ_ID_FAILED, "failed to read event id"), \
334 _PE(READ_FORMAT_FAILED, "failed to read event format"), \
335 _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \
336 _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\
337 _PE(INVALID_ARG_TYPE, "invalid argument type"), \
338 _PE(INVALID_EXP_TYPE, "invalid expression type"), \
339 _PE(INVALID_OP_TYPE, "invalid operator type"), \
340 _PE(INVALID_EVENT_NAME, "invalid event name"), \
341 _PE(EVENT_NOT_FOUND, "no event found"), \
342 _PE(SYNTAX_ERROR, "syntax error"), \
343 _PE(ILLEGAL_RVALUE, "illegal rvalue"), \
344 _PE(ILLEGAL_LVALUE, "illegal lvalue for string comparison"), \
345 _PE(INVALID_REGEX, "regex did not compute"), \
346 _PE(ILLEGAL_STRING_CMP, "illegal comparison for string"), \
347 _PE(ILLEGAL_INTEGER_CMP,"illegal comparison for integer"), \
348 _PE(REPARENT_NOT_OP, "cannot reparent other than OP"), \
349 _PE(REPARENT_FAILED, "failed to reparent filter OP"), \
350 _PE(BAD_FILTER_ARG, "bad arg in filter tree"), \
351 _PE(UNEXPECTED_TYPE, "unexpected type (not a value)"), \
352 _PE(ILLEGAL_TOKEN, "illegal token"), \
353 _PE(INVALID_PAREN, "open parenthesis cannot come here"), \
354 _PE(UNBALANCED_PAREN, "unbalanced number of parenthesis"), \
355 _PE(UNKNOWN_TOKEN, "unknown token"), \
356 _PE(FILTER_NOT_FOUND, "no filter found"), \
357 _PE(NOT_A_NUMBER, "must have number field"), \
358 _PE(NO_FILTER, "no filters exists"), \
359 _PE(FILTER_MISS, "record does not match to filter")
360
361 #undef _PE
362 #define _PE(__code, __str) TEP_ERRNO__ ## __code
363 enum tep_errno {
364 TEP_ERRNO__SUCCESS = 0,
365 TEP_ERRNO__FILTER_MATCH = TEP_ERRNO__SUCCESS,
366
367 /*
368 * Choose an arbitrary negative big number not to clash with standard
369 * errno since SUS requires the errno has distinct positive values.
370 * See 'Issue 6' in the link below.
371 *
372 * https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
373 */
374 __TEP_ERRNO__START = -100000,
375
376 TEP_ERRORS,
377
378 __TEP_ERRNO__END,
379 };
380 #undef _PE
381
382 struct tep_plugin_list;
383
384 #define INVALID_PLUGIN_LIST_OPTION ((char **)((unsigned long)-1))
385
386 enum tep_plugin_load_priority {
387 TEP_PLUGIN_FIRST,
388 TEP_PLUGIN_LAST,
389 };
390
391 int tep_add_plugin_path(struct tep_handle *tep, char *path,
392 enum tep_plugin_load_priority prio);
393 struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep);
394 void tep_unload_plugins(struct tep_plugin_list *plugin_list,
395 struct tep_handle *tep);
396 void tep_load_plugins_hook(struct tep_handle *tep, const char *suffix,
397 void (*load_plugin)(struct tep_handle *tep,
398 const char *path,
399 const char *name,
400 void *data),
401 void *data);
402 char **tep_plugin_list_options(void);
403 void tep_plugin_free_options_list(char **list);
404 int tep_plugin_add_options(const char *name,
405 struct tep_plugin_option *options);
406 int tep_plugin_add_option(const char *name, const char *val);
407 void tep_plugin_remove_options(struct tep_plugin_option *options);
408 void tep_plugin_print_options(struct trace_seq *s);
409 void tep_print_plugins(struct trace_seq *s,
410 const char *prefix, const char *suffix,
411 const struct tep_plugin_list *list);
412
413 /* tep_handle */
414 typedef char *(tep_func_resolver_t)(void *priv,
415 unsigned long long *addrp, char **modp);
416 void tep_set_flag(struct tep_handle *tep, int flag);
417 void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
418 bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags);
419
tep_is_bigendian(void)420 static inline int tep_is_bigendian(void)
421 {
422 unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
423 unsigned int val;
424
425 memcpy(&val, str, 4);
426 return val == 0x01020304;
427 }
428
429 /* taken from kernel/trace/trace.h */
430 enum trace_flag_type {
431 TRACE_FLAG_IRQS_OFF = 0x01,
432 TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
433 TRACE_FLAG_NEED_RESCHED = 0x04,
434 TRACE_FLAG_HARDIRQ = 0x08,
435 TRACE_FLAG_SOFTIRQ = 0x10,
436 };
437
438 int tep_set_function_resolver(struct tep_handle *tep,
439 tep_func_resolver_t *func, void *priv);
440 void tep_reset_function_resolver(struct tep_handle *tep);
441 int tep_register_comm(struct tep_handle *tep, const char *comm, int pid);
442 int tep_override_comm(struct tep_handle *tep, const char *comm, int pid);
443 int tep_register_function(struct tep_handle *tep, char *name,
444 unsigned long long addr, char *mod);
445 int tep_register_print_string(struct tep_handle *tep, const char *fmt,
446 unsigned long long addr);
447 bool tep_is_pid_registered(struct tep_handle *tep, int pid);
448
449 struct tep_event *tep_get_event(struct tep_handle *tep, int index);
450
451 #define TEP_PRINT_INFO "INFO"
452 #define TEP_PRINT_INFO_RAW "INFO_RAW"
453 #define TEP_PRINT_COMM "COMM"
454 #define TEP_PRINT_LATENCY "LATENCY"
455 #define TEP_PRINT_NAME "NAME"
456 #define TEP_PRINT_PID 1U
457 #define TEP_PRINT_TIME 2U
458 #define TEP_PRINT_CPU 3U
459
460 void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
461 struct tep_record *record, const char *fmt, ...)
462 __attribute__ ((format (printf, 4, 5)));
463
464 int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
465 int long_size);
466
467 enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
468 unsigned long size, const char *sys);
469 enum tep_errno tep_parse_format(struct tep_handle *tep,
470 struct tep_event **eventp,
471 const char *buf,
472 unsigned long size, const char *sys);
473
474 void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event,
475 const char *name, struct tep_record *record,
476 int *len, int err);
477
478 int tep_get_field_val(struct trace_seq *s, struct tep_event *event,
479 const char *name, struct tep_record *record,
480 unsigned long long *val, int err);
481 int tep_get_common_field_val(struct trace_seq *s, struct tep_event *event,
482 const char *name, struct tep_record *record,
483 unsigned long long *val, int err);
484 int tep_get_any_field_val(struct trace_seq *s, struct tep_event *event,
485 const char *name, struct tep_record *record,
486 unsigned long long *val, int err);
487
488 int tep_print_num_field(struct trace_seq *s, const char *fmt,
489 struct tep_event *event, const char *name,
490 struct tep_record *record, int err);
491
492 int tep_print_func_field(struct trace_seq *s, const char *fmt,
493 struct tep_event *event, const char *name,
494 struct tep_record *record, int err);
495
496 enum tep_reg_handler {
497 TEP_REGISTER_SUCCESS = 0,
498 TEP_REGISTER_SUCCESS_OVERWRITE,
499 };
500
501 int tep_register_event_handler(struct tep_handle *tep, int id,
502 const char *sys_name, const char *event_name,
503 tep_event_handler_func func, void *context);
504 int tep_unregister_event_handler(struct tep_handle *tep, int id,
505 const char *sys_name, const char *event_name,
506 tep_event_handler_func func, void *context);
507 int tep_register_print_function(struct tep_handle *tep,
508 tep_func_handler func,
509 enum tep_func_arg_type ret_type,
510 char *name, ...);
511 int tep_unregister_print_function(struct tep_handle *tep,
512 tep_func_handler func, char *name);
513
514 struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name);
515 struct tep_format_field *tep_find_field(struct tep_event *event, const char *name);
516 struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name);
517
518 const char *tep_find_function(struct tep_handle *tep, unsigned long long addr);
519 unsigned long long
520 tep_find_function_address(struct tep_handle *tep, unsigned long long addr);
521 unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size);
522 int tep_read_number_field(struct tep_format_field *field, const void *data,
523 unsigned long long *value);
524
525 struct tep_event *tep_get_first_event(struct tep_handle *tep);
526 int tep_get_events_count(struct tep_handle *tep);
527 struct tep_event *tep_find_event(struct tep_handle *tep, int id);
528
529 struct tep_event *
530 tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name);
531 struct tep_event *
532 tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record);
533
534 int tep_data_type(struct tep_handle *tep, struct tep_record *rec);
535 int tep_data_pid(struct tep_handle *tep, struct tep_record *rec);
536 int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec);
537 int tep_data_flags(struct tep_handle *tep, struct tep_record *rec);
538 const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid);
539 struct tep_cmdline;
540 struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
541 struct tep_cmdline *next);
542 int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline);
543
544 void tep_print_field(struct trace_seq *s, void *data,
545 struct tep_format_field *field);
546 void tep_print_fields(struct trace_seq *s, void *data,
547 int size __maybe_unused, struct tep_event *event);
548 int tep_strerror(struct tep_handle *tep, enum tep_errno errnum,
549 char *buf, size_t buflen);
550
551 struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type);
552 struct tep_event **tep_list_events_copy(struct tep_handle *tep,
553 enum tep_event_sort_type);
554 struct tep_format_field **tep_event_common_fields(struct tep_event *event);
555 struct tep_format_field **tep_event_fields(struct tep_event *event);
556
557 enum tep_endian {
558 TEP_LITTLE_ENDIAN = 0,
559 TEP_BIG_ENDIAN
560 };
561 int tep_get_cpus(struct tep_handle *tep);
562 void tep_set_cpus(struct tep_handle *tep, int cpus);
563 int tep_get_long_size(struct tep_handle *tep);
564 void tep_set_long_size(struct tep_handle *tep, int long_size);
565 int tep_get_page_size(struct tep_handle *tep);
566 void tep_set_page_size(struct tep_handle *tep, int _page_size);
567 bool tep_is_file_bigendian(struct tep_handle *tep);
568 void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian);
569 bool tep_is_local_bigendian(struct tep_handle *tep);
570 void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian);
571 int tep_get_header_page_size(struct tep_handle *tep);
572 int tep_get_header_timestamp_size(struct tep_handle *tep);
573 bool tep_is_old_format(struct tep_handle *tep);
574 void tep_set_test_filters(struct tep_handle *tep, int test_filters);
575
576 struct tep_handle *tep_alloc(void);
577 void tep_free(struct tep_handle *tep);
578 void tep_ref(struct tep_handle *tep);
579 void tep_unref(struct tep_handle *tep);
580 int tep_get_ref(struct tep_handle *tep);
581
582 /* for debugging */
583 void tep_print_funcs(struct tep_handle *tep);
584 void tep_print_printk(struct tep_handle *tep);
585
586 /* ----------------------- filtering ----------------------- */
587
588 enum tep_filter_boolean_type {
589 TEP_FILTER_FALSE,
590 TEP_FILTER_TRUE,
591 };
592
593 enum tep_filter_op_type {
594 TEP_FILTER_OP_AND = 1,
595 TEP_FILTER_OP_OR,
596 TEP_FILTER_OP_NOT,
597 };
598
599 enum tep_filter_cmp_type {
600 TEP_FILTER_CMP_NONE,
601 TEP_FILTER_CMP_EQ,
602 TEP_FILTER_CMP_NE,
603 TEP_FILTER_CMP_GT,
604 TEP_FILTER_CMP_LT,
605 TEP_FILTER_CMP_GE,
606 TEP_FILTER_CMP_LE,
607 TEP_FILTER_CMP_MATCH,
608 TEP_FILTER_CMP_NOT_MATCH,
609 TEP_FILTER_CMP_REGEX,
610 TEP_FILTER_CMP_NOT_REGEX,
611 };
612
613 enum tep_filter_exp_type {
614 TEP_FILTER_EXP_NONE,
615 TEP_FILTER_EXP_ADD,
616 TEP_FILTER_EXP_SUB,
617 TEP_FILTER_EXP_MUL,
618 TEP_FILTER_EXP_DIV,
619 TEP_FILTER_EXP_MOD,
620 TEP_FILTER_EXP_RSHIFT,
621 TEP_FILTER_EXP_LSHIFT,
622 TEP_FILTER_EXP_AND,
623 TEP_FILTER_EXP_OR,
624 TEP_FILTER_EXP_XOR,
625 TEP_FILTER_EXP_NOT,
626 };
627
628 enum tep_filter_arg_type {
629 TEP_FILTER_ARG_NONE,
630 TEP_FILTER_ARG_BOOLEAN,
631 TEP_FILTER_ARG_VALUE,
632 TEP_FILTER_ARG_FIELD,
633 TEP_FILTER_ARG_EXP,
634 TEP_FILTER_ARG_OP,
635 TEP_FILTER_ARG_NUM,
636 TEP_FILTER_ARG_STR,
637 };
638
639 enum tep_filter_value_type {
640 TEP_FILTER_NUMBER,
641 TEP_FILTER_STRING,
642 TEP_FILTER_CHAR
643 };
644
645 struct tep_filter_arg;
646
647 struct tep_filter_arg_boolean {
648 enum tep_filter_boolean_type value;
649 };
650
651 struct tep_filter_arg_field {
652 struct tep_format_field *field;
653 };
654
655 struct tep_filter_arg_value {
656 enum tep_filter_value_type type;
657 union {
658 char *str;
659 unsigned long long val;
660 };
661 };
662
663 struct tep_filter_arg_op {
664 enum tep_filter_op_type type;
665 struct tep_filter_arg *left;
666 struct tep_filter_arg *right;
667 };
668
669 struct tep_filter_arg_exp {
670 enum tep_filter_exp_type type;
671 struct tep_filter_arg *left;
672 struct tep_filter_arg *right;
673 };
674
675 struct tep_filter_arg_num {
676 enum tep_filter_cmp_type type;
677 struct tep_filter_arg *left;
678 struct tep_filter_arg *right;
679 };
680
681 struct tep_filter_arg_str {
682 enum tep_filter_cmp_type type;
683 struct tep_format_field *field;
684 char *val;
685 char *buffer;
686 regex_t reg;
687 };
688
689 struct tep_filter_arg {
690 enum tep_filter_arg_type type;
691 union {
692 struct tep_filter_arg_boolean boolean;
693 struct tep_filter_arg_field field;
694 struct tep_filter_arg_value value;
695 struct tep_filter_arg_op op;
696 struct tep_filter_arg_exp exp;
697 struct tep_filter_arg_num num;
698 struct tep_filter_arg_str str;
699 };
700 };
701
702 struct tep_filter_type {
703 int event_id;
704 struct tep_event *event;
705 struct tep_filter_arg *filter;
706 };
707
708 #define TEP_FILTER_ERROR_BUFSZ 1024
709
710 struct tep_event_filter {
711 struct tep_handle *tep;
712 int filters;
713 struct tep_filter_type *event_filters;
714 char error_buffer[TEP_FILTER_ERROR_BUFSZ];
715 };
716
717 struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep);
718
719 /* for backward compatibility */
720 #define FILTER_NONE TEP_ERRNO__NO_FILTER
721 #define FILTER_NOEXIST TEP_ERRNO__FILTER_NOT_FOUND
722 #define FILTER_MISS TEP_ERRNO__FILTER_MISS
723 #define FILTER_MATCH TEP_ERRNO__FILTER_MATCH
724
725 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
726 const char *filter_str);
727
728 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
729 struct tep_record *record);
730
731 int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
732 char *buf, size_t buflen);
733
734 int tep_event_filtered(struct tep_event_filter *filter,
735 int event_id);
736
737 void tep_filter_reset(struct tep_event_filter *filter);
738
739 void tep_filter_free(struct tep_event_filter *filter);
740
741 char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
742
743 int tep_filter_remove_event(struct tep_event_filter *filter,
744 int event_id);
745
746 int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
747
748 int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
749
750 #endif /* _PARSE_EVENTS_H */
751