Loading...
Note: File does not exist in v6.8.
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
25struct 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
45struct tep_handle;
46struct tep_event;
47
48typedef int (*tep_event_handler_func)(struct trace_seq *s,
49 struct tep_record *record,
50 struct tep_event *event,
51 void *context);
52
53typedef int (*tep_plugin_load_func)(struct tep_handle *tep);
54typedef int (*tep_plugin_unload_func)(struct tep_handle *tep);
55
56struct 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
119enum 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};
129
130struct tep_format_field {
131 struct tep_format_field *next;
132 struct tep_event *event;
133 char *type;
134 char *name;
135 char *alias;
136 int offset;
137 int size;
138 unsigned int arraylen;
139 unsigned int elementsize;
140 unsigned long flags;
141};
142
143struct tep_format {
144 int nr_common;
145 int nr_fields;
146 struct tep_format_field *common_fields;
147 struct tep_format_field *fields;
148};
149
150struct tep_print_arg_atom {
151 char *atom;
152};
153
154struct tep_print_arg_string {
155 char *string;
156 int offset;
157};
158
159struct tep_print_arg_bitmask {
160 char *bitmask;
161 int offset;
162};
163
164struct tep_print_arg_field {
165 char *name;
166 struct tep_format_field *field;
167};
168
169struct tep_print_flag_sym {
170 struct tep_print_flag_sym *next;
171 char *value;
172 char *str;
173};
174
175struct tep_print_arg_typecast {
176 char *type;
177 struct tep_print_arg *item;
178};
179
180struct tep_print_arg_flags {
181 struct tep_print_arg *field;
182 char *delim;
183 struct tep_print_flag_sym *flags;
184};
185
186struct tep_print_arg_symbol {
187 struct tep_print_arg *field;
188 struct tep_print_flag_sym *symbols;
189};
190
191struct tep_print_arg_hex {
192 struct tep_print_arg *field;
193 struct tep_print_arg *size;
194};
195
196struct tep_print_arg_int_array {
197 struct tep_print_arg *field;
198 struct tep_print_arg *count;
199 struct tep_print_arg *el_size;
200};
201
202struct tep_print_arg_dynarray {
203 struct tep_format_field *field;
204 struct tep_print_arg *index;
205};
206
207struct tep_print_arg;
208
209struct tep_print_arg_op {
210 char *op;
211 int prio;
212 struct tep_print_arg *left;
213 struct tep_print_arg *right;
214};
215
216struct tep_function_handler;
217
218struct tep_print_arg_func {
219 struct tep_function_handler *func;
220 struct tep_print_arg *args;
221};
222
223enum tep_print_arg_type {
224 TEP_PRINT_NULL,
225 TEP_PRINT_ATOM,
226 TEP_PRINT_FIELD,
227 TEP_PRINT_FLAGS,
228 TEP_PRINT_SYMBOL,
229 TEP_PRINT_HEX,
230 TEP_PRINT_INT_ARRAY,
231 TEP_PRINT_TYPE,
232 TEP_PRINT_STRING,
233 TEP_PRINT_BSTRING,
234 TEP_PRINT_DYNAMIC_ARRAY,
235 TEP_PRINT_OP,
236 TEP_PRINT_FUNC,
237 TEP_PRINT_BITMASK,
238 TEP_PRINT_DYNAMIC_ARRAY_LEN,
239 TEP_PRINT_HEX_STR,
240};
241
242struct tep_print_arg {
243 struct tep_print_arg *next;
244 enum tep_print_arg_type type;
245 union {
246 struct tep_print_arg_atom atom;
247 struct tep_print_arg_field field;
248 struct tep_print_arg_typecast typecast;
249 struct tep_print_arg_flags flags;
250 struct tep_print_arg_symbol symbol;
251 struct tep_print_arg_hex hex;
252 struct tep_print_arg_int_array int_array;
253 struct tep_print_arg_func func;
254 struct tep_print_arg_string string;
255 struct tep_print_arg_bitmask bitmask;
256 struct tep_print_arg_op op;
257 struct tep_print_arg_dynarray dynarray;
258 };
259};
260
261struct tep_print_parse;
262
263struct tep_print_fmt {
264 char *format;
265 struct tep_print_arg *args;
266 struct tep_print_parse *print_cache;
267};
268
269struct tep_event {
270 struct tep_handle *tep;
271 char *name;
272 int id;
273 int flags;
274 struct tep_format format;
275 struct tep_print_fmt print_fmt;
276 char *system;
277 tep_event_handler_func handler;
278 void *context;
279};
280
281enum {
282 TEP_EVENT_FL_ISFTRACE = 0x01,
283 TEP_EVENT_FL_ISPRINT = 0x02,
284 TEP_EVENT_FL_ISBPRINT = 0x04,
285 TEP_EVENT_FL_ISFUNCENT = 0x10,
286 TEP_EVENT_FL_ISFUNCRET = 0x20,
287 TEP_EVENT_FL_NOHANDLE = 0x40,
288 TEP_EVENT_FL_PRINTRAW = 0x80,
289
290 TEP_EVENT_FL_FAILED = 0x80000000
291};
292
293enum tep_event_sort_type {
294 TEP_EVENT_SORT_ID,
295 TEP_EVENT_SORT_NAME,
296 TEP_EVENT_SORT_SYSTEM,
297};
298
299enum tep_event_type {
300 TEP_EVENT_ERROR,
301 TEP_EVENT_NONE,
302 TEP_EVENT_SPACE,
303 TEP_EVENT_NEWLINE,
304 TEP_EVENT_OP,
305 TEP_EVENT_DELIM,
306 TEP_EVENT_ITEM,
307 TEP_EVENT_DQUOTE,
308 TEP_EVENT_SQUOTE,
309};
310
311typedef unsigned long long (*tep_func_handler)(struct trace_seq *s,
312 unsigned long long *args);
313
314enum tep_func_arg_type {
315 TEP_FUNC_ARG_VOID,
316 TEP_FUNC_ARG_INT,
317 TEP_FUNC_ARG_LONG,
318 TEP_FUNC_ARG_STRING,
319 TEP_FUNC_ARG_PTR,
320 TEP_FUNC_ARG_MAX_TYPES
321};
322
323enum tep_flag {
324 TEP_NSEC_OUTPUT = 1, /* output in NSECS */
325 TEP_DISABLE_SYS_PLUGINS = 1 << 1,
326 TEP_DISABLE_PLUGINS = 1 << 2,
327};
328
329#define TEP_ERRORS \
330 _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \
331 _PE(PARSE_EVENT_FAILED, "failed to parse event"), \
332 _PE(READ_ID_FAILED, "failed to read event id"), \
333 _PE(READ_FORMAT_FAILED, "failed to read event format"), \
334 _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \
335 _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\
336 _PE(INVALID_ARG_TYPE, "invalid argument type"), \
337 _PE(INVALID_EXP_TYPE, "invalid expression type"), \
338 _PE(INVALID_OP_TYPE, "invalid operator type"), \
339 _PE(INVALID_EVENT_NAME, "invalid event name"), \
340 _PE(EVENT_NOT_FOUND, "no event found"), \
341 _PE(SYNTAX_ERROR, "syntax error"), \
342 _PE(ILLEGAL_RVALUE, "illegal rvalue"), \
343 _PE(ILLEGAL_LVALUE, "illegal lvalue for string comparison"), \
344 _PE(INVALID_REGEX, "regex did not compute"), \
345 _PE(ILLEGAL_STRING_CMP, "illegal comparison for string"), \
346 _PE(ILLEGAL_INTEGER_CMP,"illegal comparison for integer"), \
347 _PE(REPARENT_NOT_OP, "cannot reparent other than OP"), \
348 _PE(REPARENT_FAILED, "failed to reparent filter OP"), \
349 _PE(BAD_FILTER_ARG, "bad arg in filter tree"), \
350 _PE(UNEXPECTED_TYPE, "unexpected type (not a value)"), \
351 _PE(ILLEGAL_TOKEN, "illegal token"), \
352 _PE(INVALID_PAREN, "open parenthesis cannot come here"), \
353 _PE(UNBALANCED_PAREN, "unbalanced number of parenthesis"), \
354 _PE(UNKNOWN_TOKEN, "unknown token"), \
355 _PE(FILTER_NOT_FOUND, "no filter found"), \
356 _PE(NOT_A_NUMBER, "must have number field"), \
357 _PE(NO_FILTER, "no filters exists"), \
358 _PE(FILTER_MISS, "record does not match to filter")
359
360#undef _PE
361#define _PE(__code, __str) TEP_ERRNO__ ## __code
362enum tep_errno {
363 TEP_ERRNO__SUCCESS = 0,
364 TEP_ERRNO__FILTER_MATCH = TEP_ERRNO__SUCCESS,
365
366 /*
367 * Choose an arbitrary negative big number not to clash with standard
368 * errno since SUS requires the errno has distinct positive values.
369 * See 'Issue 6' in the link below.
370 *
371 * https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
372 */
373 __TEP_ERRNO__START = -100000,
374
375 TEP_ERRORS,
376
377 __TEP_ERRNO__END,
378};
379#undef _PE
380
381struct tep_plugin_list;
382
383#define INVALID_PLUGIN_LIST_OPTION ((char **)((unsigned long)-1))
384
385enum tep_plugin_load_priority {
386 TEP_PLUGIN_FIRST,
387 TEP_PLUGIN_LAST,
388};
389
390int tep_add_plugin_path(struct tep_handle *tep, char *path,
391 enum tep_plugin_load_priority prio);
392struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep);
393void tep_unload_plugins(struct tep_plugin_list *plugin_list,
394 struct tep_handle *tep);
395void tep_load_plugins_hook(struct tep_handle *tep, const char *suffix,
396 void (*load_plugin)(struct tep_handle *tep,
397 const char *path,
398 const char *name,
399 void *data),
400 void *data);
401char **tep_plugin_list_options(void);
402void tep_plugin_free_options_list(char **list);
403int tep_plugin_add_options(const char *name,
404 struct tep_plugin_option *options);
405int tep_plugin_add_option(const char *name, const char *val);
406void tep_plugin_remove_options(struct tep_plugin_option *options);
407void tep_plugin_print_options(struct trace_seq *s);
408void tep_print_plugins(struct trace_seq *s,
409 const char *prefix, const char *suffix,
410 const struct tep_plugin_list *list);
411
412/* tep_handle */
413typedef char *(tep_func_resolver_t)(void *priv,
414 unsigned long long *addrp, char **modp);
415void tep_set_flag(struct tep_handle *tep, int flag);
416void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
417bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags);
418
419static inline int tep_is_bigendian(void)
420{
421 unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
422 unsigned int val;
423
424 memcpy(&val, str, 4);
425 return val == 0x01020304;
426}
427
428/* taken from kernel/trace/trace.h */
429enum trace_flag_type {
430 TRACE_FLAG_IRQS_OFF = 0x01,
431 TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
432 TRACE_FLAG_NEED_RESCHED = 0x04,
433 TRACE_FLAG_HARDIRQ = 0x08,
434 TRACE_FLAG_SOFTIRQ = 0x10,
435};
436
437int tep_set_function_resolver(struct tep_handle *tep,
438 tep_func_resolver_t *func, void *priv);
439void tep_reset_function_resolver(struct tep_handle *tep);
440int tep_register_comm(struct tep_handle *tep, const char *comm, int pid);
441int tep_override_comm(struct tep_handle *tep, const char *comm, int pid);
442int tep_register_function(struct tep_handle *tep, char *name,
443 unsigned long long addr, char *mod);
444int tep_register_print_string(struct tep_handle *tep, const char *fmt,
445 unsigned long long addr);
446bool tep_is_pid_registered(struct tep_handle *tep, int pid);
447
448struct tep_event *tep_get_event(struct tep_handle *tep, int index);
449
450#define TEP_PRINT_INFO "INFO"
451#define TEP_PRINT_INFO_RAW "INFO_RAW"
452#define TEP_PRINT_COMM "COMM"
453#define TEP_PRINT_LATENCY "LATENCY"
454#define TEP_PRINT_NAME "NAME"
455#define TEP_PRINT_PID 1U
456#define TEP_PRINT_TIME 2U
457#define TEP_PRINT_CPU 3U
458
459void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
460 struct tep_record *record, const char *fmt, ...)
461 __attribute__ ((format (printf, 4, 5)));
462
463int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
464 int long_size);
465
466enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
467 unsigned long size, const char *sys);
468enum tep_errno tep_parse_format(struct tep_handle *tep,
469 struct tep_event **eventp,
470 const char *buf,
471 unsigned long size, const char *sys);
472
473void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event,
474 const char *name, struct tep_record *record,
475 int *len, int err);
476
477int tep_get_field_val(struct trace_seq *s, struct tep_event *event,
478 const char *name, struct tep_record *record,
479 unsigned long long *val, int err);
480int tep_get_common_field_val(struct trace_seq *s, struct tep_event *event,
481 const char *name, struct tep_record *record,
482 unsigned long long *val, int err);
483int tep_get_any_field_val(struct trace_seq *s, struct tep_event *event,
484 const char *name, struct tep_record *record,
485 unsigned long long *val, int err);
486
487int tep_print_num_field(struct trace_seq *s, const char *fmt,
488 struct tep_event *event, const char *name,
489 struct tep_record *record, int err);
490
491int tep_print_func_field(struct trace_seq *s, const char *fmt,
492 struct tep_event *event, const char *name,
493 struct tep_record *record, int err);
494
495enum tep_reg_handler {
496 TEP_REGISTER_SUCCESS = 0,
497 TEP_REGISTER_SUCCESS_OVERWRITE,
498};
499
500int tep_register_event_handler(struct tep_handle *tep, int id,
501 const char *sys_name, const char *event_name,
502 tep_event_handler_func func, void *context);
503int tep_unregister_event_handler(struct tep_handle *tep, int id,
504 const char *sys_name, const char *event_name,
505 tep_event_handler_func func, void *context);
506int tep_register_print_function(struct tep_handle *tep,
507 tep_func_handler func,
508 enum tep_func_arg_type ret_type,
509 char *name, ...);
510int tep_unregister_print_function(struct tep_handle *tep,
511 tep_func_handler func, char *name);
512
513struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name);
514struct tep_format_field *tep_find_field(struct tep_event *event, const char *name);
515struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name);
516
517const char *tep_find_function(struct tep_handle *tep, unsigned long long addr);
518unsigned long long
519tep_find_function_address(struct tep_handle *tep, unsigned long long addr);
520unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size);
521int tep_read_number_field(struct tep_format_field *field, const void *data,
522 unsigned long long *value);
523
524struct tep_event *tep_get_first_event(struct tep_handle *tep);
525int tep_get_events_count(struct tep_handle *tep);
526struct tep_event *tep_find_event(struct tep_handle *tep, int id);
527
528struct tep_event *
529tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name);
530struct tep_event *
531tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record);
532
533int tep_data_type(struct tep_handle *tep, struct tep_record *rec);
534int tep_data_pid(struct tep_handle *tep, struct tep_record *rec);
535int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec);
536int tep_data_flags(struct tep_handle *tep, struct tep_record *rec);
537const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid);
538struct tep_cmdline;
539struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
540 struct tep_cmdline *next);
541int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline);
542
543void tep_print_field(struct trace_seq *s, void *data,
544 struct tep_format_field *field);
545void tep_print_fields(struct trace_seq *s, void *data,
546 int size __maybe_unused, struct tep_event *event);
547int tep_strerror(struct tep_handle *tep, enum tep_errno errnum,
548 char *buf, size_t buflen);
549
550struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type);
551struct tep_event **tep_list_events_copy(struct tep_handle *tep,
552 enum tep_event_sort_type);
553struct tep_format_field **tep_event_common_fields(struct tep_event *event);
554struct tep_format_field **tep_event_fields(struct tep_event *event);
555
556enum tep_endian {
557 TEP_LITTLE_ENDIAN = 0,
558 TEP_BIG_ENDIAN
559};
560int tep_get_cpus(struct tep_handle *tep);
561void tep_set_cpus(struct tep_handle *tep, int cpus);
562int tep_get_long_size(struct tep_handle *tep);
563void tep_set_long_size(struct tep_handle *tep, int long_size);
564int tep_get_page_size(struct tep_handle *tep);
565void tep_set_page_size(struct tep_handle *tep, int _page_size);
566bool tep_is_file_bigendian(struct tep_handle *tep);
567void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian);
568bool tep_is_local_bigendian(struct tep_handle *tep);
569void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian);
570int tep_get_header_page_size(struct tep_handle *tep);
571int tep_get_header_timestamp_size(struct tep_handle *tep);
572bool tep_is_old_format(struct tep_handle *tep);
573void tep_set_test_filters(struct tep_handle *tep, int test_filters);
574
575struct tep_handle *tep_alloc(void);
576void tep_free(struct tep_handle *tep);
577void tep_ref(struct tep_handle *tep);
578void tep_unref(struct tep_handle *tep);
579int tep_get_ref(struct tep_handle *tep);
580
581/* for debugging */
582void tep_print_funcs(struct tep_handle *tep);
583void tep_print_printk(struct tep_handle *tep);
584
585/* ----------------------- filtering ----------------------- */
586
587enum tep_filter_boolean_type {
588 TEP_FILTER_FALSE,
589 TEP_FILTER_TRUE,
590};
591
592enum tep_filter_op_type {
593 TEP_FILTER_OP_AND = 1,
594 TEP_FILTER_OP_OR,
595 TEP_FILTER_OP_NOT,
596};
597
598enum tep_filter_cmp_type {
599 TEP_FILTER_CMP_NONE,
600 TEP_FILTER_CMP_EQ,
601 TEP_FILTER_CMP_NE,
602 TEP_FILTER_CMP_GT,
603 TEP_FILTER_CMP_LT,
604 TEP_FILTER_CMP_GE,
605 TEP_FILTER_CMP_LE,
606 TEP_FILTER_CMP_MATCH,
607 TEP_FILTER_CMP_NOT_MATCH,
608 TEP_FILTER_CMP_REGEX,
609 TEP_FILTER_CMP_NOT_REGEX,
610};
611
612enum tep_filter_exp_type {
613 TEP_FILTER_EXP_NONE,
614 TEP_FILTER_EXP_ADD,
615 TEP_FILTER_EXP_SUB,
616 TEP_FILTER_EXP_MUL,
617 TEP_FILTER_EXP_DIV,
618 TEP_FILTER_EXP_MOD,
619 TEP_FILTER_EXP_RSHIFT,
620 TEP_FILTER_EXP_LSHIFT,
621 TEP_FILTER_EXP_AND,
622 TEP_FILTER_EXP_OR,
623 TEP_FILTER_EXP_XOR,
624 TEP_FILTER_EXP_NOT,
625};
626
627enum tep_filter_arg_type {
628 TEP_FILTER_ARG_NONE,
629 TEP_FILTER_ARG_BOOLEAN,
630 TEP_FILTER_ARG_VALUE,
631 TEP_FILTER_ARG_FIELD,
632 TEP_FILTER_ARG_EXP,
633 TEP_FILTER_ARG_OP,
634 TEP_FILTER_ARG_NUM,
635 TEP_FILTER_ARG_STR,
636};
637
638enum tep_filter_value_type {
639 TEP_FILTER_NUMBER,
640 TEP_FILTER_STRING,
641 TEP_FILTER_CHAR
642};
643
644struct tep_filter_arg;
645
646struct tep_filter_arg_boolean {
647 enum tep_filter_boolean_type value;
648};
649
650struct tep_filter_arg_field {
651 struct tep_format_field *field;
652};
653
654struct tep_filter_arg_value {
655 enum tep_filter_value_type type;
656 union {
657 char *str;
658 unsigned long long val;
659 };
660};
661
662struct tep_filter_arg_op {
663 enum tep_filter_op_type type;
664 struct tep_filter_arg *left;
665 struct tep_filter_arg *right;
666};
667
668struct tep_filter_arg_exp {
669 enum tep_filter_exp_type type;
670 struct tep_filter_arg *left;
671 struct tep_filter_arg *right;
672};
673
674struct tep_filter_arg_num {
675 enum tep_filter_cmp_type type;
676 struct tep_filter_arg *left;
677 struct tep_filter_arg *right;
678};
679
680struct tep_filter_arg_str {
681 enum tep_filter_cmp_type type;
682 struct tep_format_field *field;
683 char *val;
684 char *buffer;
685 regex_t reg;
686};
687
688struct tep_filter_arg {
689 enum tep_filter_arg_type type;
690 union {
691 struct tep_filter_arg_boolean boolean;
692 struct tep_filter_arg_field field;
693 struct tep_filter_arg_value value;
694 struct tep_filter_arg_op op;
695 struct tep_filter_arg_exp exp;
696 struct tep_filter_arg_num num;
697 struct tep_filter_arg_str str;
698 };
699};
700
701struct tep_filter_type {
702 int event_id;
703 struct tep_event *event;
704 struct tep_filter_arg *filter;
705};
706
707#define TEP_FILTER_ERROR_BUFSZ 1024
708
709struct tep_event_filter {
710 struct tep_handle *tep;
711 int filters;
712 struct tep_filter_type *event_filters;
713 char error_buffer[TEP_FILTER_ERROR_BUFSZ];
714};
715
716struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep);
717
718/* for backward compatibility */
719#define FILTER_NONE TEP_ERRNO__NO_FILTER
720#define FILTER_NOEXIST TEP_ERRNO__FILTER_NOT_FOUND
721#define FILTER_MISS TEP_ERRNO__FILTER_MISS
722#define FILTER_MATCH TEP_ERRNO__FILTER_MATCH
723
724enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
725 const char *filter_str);
726
727enum tep_errno tep_filter_match(struct tep_event_filter *filter,
728 struct tep_record *record);
729
730int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
731 char *buf, size_t buflen);
732
733int tep_event_filtered(struct tep_event_filter *filter,
734 int event_id);
735
736void tep_filter_reset(struct tep_event_filter *filter);
737
738void tep_filter_free(struct tep_event_filter *filter);
739
740char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
741
742int tep_filter_remove_event(struct tep_event_filter *filter,
743 int event_id);
744
745int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
746
747int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
748
749#endif /* _PARSE_EVENTS_H */