Linux 3.11-rc3
[cris-mirror.git] / tools / lib / traceevent / event-parse.h
blob7be7e89533e4fed9979dae191cbb2aa808c45121
1 /*
2 * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
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!)
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.
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>
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20 #ifndef _PARSE_EVENTS_H
21 #define _PARSE_EVENTS_H
23 #include <stdarg.h>
24 #include <regex.h>
26 #ifndef __maybe_unused
27 #define __maybe_unused __attribute__((unused))
28 #endif
30 /* ----------------------- trace_seq ----------------------- */
33 #ifndef TRACE_SEQ_BUF_SIZE
34 #define TRACE_SEQ_BUF_SIZE 4096
35 #endif
37 #ifndef DEBUG_RECORD
38 #define DEBUG_RECORD 0
39 #endif
41 struct pevent_record {
42 unsigned long long ts;
43 unsigned long long offset;
44 long long missed_events; /* buffer dropped events before */
45 int record_size; /* size of binary record */
46 int size; /* size of data */
47 void *data;
48 int cpu;
49 int ref_count;
50 int locked; /* Do not free, even if ref_count is zero */
51 void *priv;
52 #if DEBUG_RECORD
53 struct pevent_record *prev;
54 struct pevent_record *next;
55 long alloc_addr;
56 #endif
60 * Trace sequences are used to allow a function to call several other functions
61 * to create a string of data to use (up to a max of PAGE_SIZE).
64 struct trace_seq {
65 char *buffer;
66 unsigned int buffer_size;
67 unsigned int len;
68 unsigned int readpos;
71 void trace_seq_init(struct trace_seq *s);
72 void trace_seq_destroy(struct trace_seq *s);
74 extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
75 __attribute__ ((format (printf, 2, 3)));
76 extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args)
77 __attribute__ ((format (printf, 2, 0)));
79 extern int trace_seq_puts(struct trace_seq *s, const char *str);
80 extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
82 extern void trace_seq_terminate(struct trace_seq *s);
84 extern int trace_seq_do_printf(struct trace_seq *s);
87 /* ----------------------- pevent ----------------------- */
89 struct pevent;
90 struct event_format;
92 typedef int (*pevent_event_handler_func)(struct trace_seq *s,
93 struct pevent_record *record,
94 struct event_format *event,
95 void *context);
97 typedef int (*pevent_plugin_load_func)(struct pevent *pevent);
98 typedef int (*pevent_plugin_unload_func)(void);
100 struct plugin_option {
101 struct plugin_option *next;
102 void *handle;
103 char *file;
104 char *name;
105 char *plugin_alias;
106 char *description;
107 char *value;
108 void *priv;
109 int set;
113 * Plugin hooks that can be called:
115 * PEVENT_PLUGIN_LOADER: (required)
116 * The function name to initialized the plugin.
118 * int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
120 * PEVENT_PLUGIN_UNLOADER: (optional)
121 * The function called just before unloading
123 * int PEVENT_PLUGIN_UNLOADER(void)
125 * PEVENT_PLUGIN_OPTIONS: (optional)
126 * Plugin options that can be set before loading
128 * struct plugin_option PEVENT_PLUGIN_OPTIONS[] = {
130 * .name = "option-name",
131 * .plugin_alias = "overide-file-name", (optional)
132 * .description = "description of option to show users",
133 * },
135 * .name = NULL,
136 * },
137 * };
139 * Array must end with .name = NULL;
142 * .plugin_alias is used to give a shorter name to access
143 * the vairable. Useful if a plugin handles more than one event.
145 * PEVENT_PLUGIN_ALIAS: (optional)
146 * The name to use for finding options (uses filename if not defined)
148 #define PEVENT_PLUGIN_LOADER pevent_plugin_loader
149 #define PEVENT_PLUGIN_UNLOADER pevent_plugin_unloader
150 #define PEVENT_PLUGIN_OPTIONS pevent_plugin_options
151 #define PEVENT_PLUGIN_ALIAS pevent_plugin_alias
152 #define _MAKE_STR(x) #x
153 #define MAKE_STR(x) _MAKE_STR(x)
154 #define PEVENT_PLUGIN_LOADER_NAME MAKE_STR(PEVENT_PLUGIN_LOADER)
155 #define PEVENT_PLUGIN_UNLOADER_NAME MAKE_STR(PEVENT_PLUGIN_UNLOADER)
156 #define PEVENT_PLUGIN_OPTIONS_NAME MAKE_STR(PEVENT_PLUGIN_OPTIONS)
157 #define PEVENT_PLUGIN_ALIAS_NAME MAKE_STR(PEVENT_PLUGIN_ALIAS)
159 #define NSECS_PER_SEC 1000000000ULL
160 #define NSECS_PER_USEC 1000ULL
162 enum format_flags {
163 FIELD_IS_ARRAY = 1,
164 FIELD_IS_POINTER = 2,
165 FIELD_IS_SIGNED = 4,
166 FIELD_IS_STRING = 8,
167 FIELD_IS_DYNAMIC = 16,
168 FIELD_IS_LONG = 32,
169 FIELD_IS_FLAG = 64,
170 FIELD_IS_SYMBOLIC = 128,
173 struct format_field {
174 struct format_field *next;
175 struct event_format *event;
176 char *type;
177 char *name;
178 int offset;
179 int size;
180 unsigned int arraylen;
181 unsigned int elementsize;
182 unsigned long flags;
185 struct format {
186 int nr_common;
187 int nr_fields;
188 struct format_field *common_fields;
189 struct format_field *fields;
192 struct print_arg_atom {
193 char *atom;
196 struct print_arg_string {
197 char *string;
198 int offset;
201 struct print_arg_field {
202 char *name;
203 struct format_field *field;
206 struct print_flag_sym {
207 struct print_flag_sym *next;
208 char *value;
209 char *str;
212 struct print_arg_typecast {
213 char *type;
214 struct print_arg *item;
217 struct print_arg_flags {
218 struct print_arg *field;
219 char *delim;
220 struct print_flag_sym *flags;
223 struct print_arg_symbol {
224 struct print_arg *field;
225 struct print_flag_sym *symbols;
228 struct print_arg_hex {
229 struct print_arg *field;
230 struct print_arg *size;
233 struct print_arg_dynarray {
234 struct format_field *field;
235 struct print_arg *index;
238 struct print_arg;
240 struct print_arg_op {
241 char *op;
242 int prio;
243 struct print_arg *left;
244 struct print_arg *right;
247 struct pevent_function_handler;
249 struct print_arg_func {
250 struct pevent_function_handler *func;
251 struct print_arg *args;
254 enum print_arg_type {
255 PRINT_NULL,
256 PRINT_ATOM,
257 PRINT_FIELD,
258 PRINT_FLAGS,
259 PRINT_SYMBOL,
260 PRINT_HEX,
261 PRINT_TYPE,
262 PRINT_STRING,
263 PRINT_BSTRING,
264 PRINT_DYNAMIC_ARRAY,
265 PRINT_OP,
266 PRINT_FUNC,
269 struct print_arg {
270 struct print_arg *next;
271 enum print_arg_type type;
272 union {
273 struct print_arg_atom atom;
274 struct print_arg_field field;
275 struct print_arg_typecast typecast;
276 struct print_arg_flags flags;
277 struct print_arg_symbol symbol;
278 struct print_arg_hex hex;
279 struct print_arg_func func;
280 struct print_arg_string string;
281 struct print_arg_op op;
282 struct print_arg_dynarray dynarray;
286 struct print_fmt {
287 char *format;
288 struct print_arg *args;
291 struct event_format {
292 struct pevent *pevent;
293 char *name;
294 int id;
295 int flags;
296 struct format format;
297 struct print_fmt print_fmt;
298 char *system;
299 pevent_event_handler_func handler;
300 void *context;
303 enum {
304 EVENT_FL_ISFTRACE = 0x01,
305 EVENT_FL_ISPRINT = 0x02,
306 EVENT_FL_ISBPRINT = 0x04,
307 EVENT_FL_ISFUNCENT = 0x10,
308 EVENT_FL_ISFUNCRET = 0x20,
310 EVENT_FL_FAILED = 0x80000000
313 enum event_sort_type {
314 EVENT_SORT_ID,
315 EVENT_SORT_NAME,
316 EVENT_SORT_SYSTEM,
319 enum event_type {
320 EVENT_ERROR,
321 EVENT_NONE,
322 EVENT_SPACE,
323 EVENT_NEWLINE,
324 EVENT_OP,
325 EVENT_DELIM,
326 EVENT_ITEM,
327 EVENT_DQUOTE,
328 EVENT_SQUOTE,
331 typedef unsigned long long (*pevent_func_handler)(struct trace_seq *s,
332 unsigned long long *args);
334 enum pevent_func_arg_type {
335 PEVENT_FUNC_ARG_VOID,
336 PEVENT_FUNC_ARG_INT,
337 PEVENT_FUNC_ARG_LONG,
338 PEVENT_FUNC_ARG_STRING,
339 PEVENT_FUNC_ARG_PTR,
340 PEVENT_FUNC_ARG_MAX_TYPES
343 enum pevent_flag {
344 PEVENT_NSEC_OUTPUT = 1, /* output in NSECS */
347 #define PEVENT_ERRORS \
348 _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \
349 _PE(PARSE_EVENT_FAILED, "failed to parse event"), \
350 _PE(READ_ID_FAILED, "failed to read event id"), \
351 _PE(READ_FORMAT_FAILED, "failed to read event format"), \
352 _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \
353 _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\
354 _PE(INVALID_ARG_TYPE, "invalid argument type")
356 #undef _PE
357 #define _PE(__code, __str) PEVENT_ERRNO__ ## __code
358 enum pevent_errno {
359 PEVENT_ERRNO__SUCCESS = 0,
362 * Choose an arbitrary negative big number not to clash with standard
363 * errno since SUS requires the errno has distinct positive values.
364 * See 'Issue 6' in the link below.
366 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
368 __PEVENT_ERRNO__START = -100000,
370 PEVENT_ERRORS,
372 __PEVENT_ERRNO__END,
374 #undef _PE
376 struct cmdline;
377 struct cmdline_list;
378 struct func_map;
379 struct func_list;
380 struct event_handler;
382 struct pevent {
383 int ref_count;
385 int header_page_ts_offset;
386 int header_page_ts_size;
387 int header_page_size_offset;
388 int header_page_size_size;
389 int header_page_data_offset;
390 int header_page_data_size;
391 int header_page_overwrite;
393 int file_bigendian;
394 int host_bigendian;
396 int latency_format;
398 int old_format;
400 int cpus;
401 int long_size;
403 struct cmdline *cmdlines;
404 struct cmdline_list *cmdlist;
405 int cmdline_count;
407 struct func_map *func_map;
408 struct func_list *funclist;
409 unsigned int func_count;
411 struct printk_map *printk_map;
412 struct printk_list *printklist;
413 unsigned int printk_count;
416 struct event_format **events;
417 int nr_events;
418 struct event_format **sort_events;
419 enum event_sort_type last_type;
421 int type_offset;
422 int type_size;
424 int pid_offset;
425 int pid_size;
427 int pc_offset;
428 int pc_size;
430 int flags_offset;
431 int flags_size;
433 int ld_offset;
434 int ld_size;
436 int print_raw;
438 int test_filters;
440 int flags;
442 struct format_field *bprint_ip_field;
443 struct format_field *bprint_fmt_field;
444 struct format_field *bprint_buf_field;
446 struct event_handler *handlers;
447 struct pevent_function_handler *func_handlers;
449 /* cache */
450 struct event_format *last_event;
453 static inline void pevent_set_flag(struct pevent *pevent, int flag)
455 pevent->flags |= flag;
458 static inline unsigned short
459 __data2host2(struct pevent *pevent, unsigned short data)
461 unsigned short swap;
463 if (pevent->host_bigendian == pevent->file_bigendian)
464 return data;
466 swap = ((data & 0xffULL) << 8) |
467 ((data & (0xffULL << 8)) >> 8);
469 return swap;
472 static inline unsigned int
473 __data2host4(struct pevent *pevent, unsigned int data)
475 unsigned int swap;
477 if (pevent->host_bigendian == pevent->file_bigendian)
478 return data;
480 swap = ((data & 0xffULL) << 24) |
481 ((data & (0xffULL << 8)) << 8) |
482 ((data & (0xffULL << 16)) >> 8) |
483 ((data & (0xffULL << 24)) >> 24);
485 return swap;
488 static inline unsigned long long
489 __data2host8(struct pevent *pevent, unsigned long long data)
491 unsigned long long swap;
493 if (pevent->host_bigendian == pevent->file_bigendian)
494 return data;
496 swap = ((data & 0xffULL) << 56) |
497 ((data & (0xffULL << 8)) << 40) |
498 ((data & (0xffULL << 16)) << 24) |
499 ((data & (0xffULL << 24)) << 8) |
500 ((data & (0xffULL << 32)) >> 8) |
501 ((data & (0xffULL << 40)) >> 24) |
502 ((data & (0xffULL << 48)) >> 40) |
503 ((data & (0xffULL << 56)) >> 56);
505 return swap;
508 #define data2host2(pevent, ptr) __data2host2(pevent, *(unsigned short *)(ptr))
509 #define data2host4(pevent, ptr) __data2host4(pevent, *(unsigned int *)(ptr))
510 #define data2host8(pevent, ptr) \
511 ({ \
512 unsigned long long __val; \
514 memcpy(&__val, (ptr), sizeof(unsigned long long)); \
515 __data2host8(pevent, __val); \
518 /* taken from kernel/trace/trace.h */
519 enum trace_flag_type {
520 TRACE_FLAG_IRQS_OFF = 0x01,
521 TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
522 TRACE_FLAG_NEED_RESCHED = 0x04,
523 TRACE_FLAG_HARDIRQ = 0x08,
524 TRACE_FLAG_SOFTIRQ = 0x10,
527 int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
528 int pevent_register_function(struct pevent *pevent, char *name,
529 unsigned long long addr, char *mod);
530 int pevent_register_print_string(struct pevent *pevent, char *fmt,
531 unsigned long long addr);
532 int pevent_pid_is_registered(struct pevent *pevent, int pid);
534 void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
535 struct pevent_record *record);
537 int pevent_parse_header_page(struct pevent *pevent, char *buf, unsigned long size,
538 int long_size);
540 enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
541 unsigned long size, const char *sys);
542 enum pevent_errno pevent_parse_format(struct event_format **eventp, const char *buf,
543 unsigned long size, const char *sys);
544 void pevent_free_format(struct event_format *event);
546 void *pevent_get_field_raw(struct trace_seq *s, struct event_format *event,
547 const char *name, struct pevent_record *record,
548 int *len, int err);
550 int pevent_get_field_val(struct trace_seq *s, struct event_format *event,
551 const char *name, struct pevent_record *record,
552 unsigned long long *val, int err);
553 int pevent_get_common_field_val(struct trace_seq *s, struct event_format *event,
554 const char *name, struct pevent_record *record,
555 unsigned long long *val, int err);
556 int pevent_get_any_field_val(struct trace_seq *s, struct event_format *event,
557 const char *name, struct pevent_record *record,
558 unsigned long long *val, int err);
560 int pevent_print_num_field(struct trace_seq *s, const char *fmt,
561 struct event_format *event, const char *name,
562 struct pevent_record *record, int err);
564 int pevent_register_event_handler(struct pevent *pevent, int id, char *sys_name, char *event_name,
565 pevent_event_handler_func func, void *context);
566 int pevent_register_print_function(struct pevent *pevent,
567 pevent_func_handler func,
568 enum pevent_func_arg_type ret_type,
569 char *name, ...);
571 struct format_field *pevent_find_common_field(struct event_format *event, const char *name);
572 struct format_field *pevent_find_field(struct event_format *event, const char *name);
573 struct format_field *pevent_find_any_field(struct event_format *event, const char *name);
575 const char *pevent_find_function(struct pevent *pevent, unsigned long long addr);
576 unsigned long long
577 pevent_find_function_address(struct pevent *pevent, unsigned long long addr);
578 unsigned long long pevent_read_number(struct pevent *pevent, const void *ptr, int size);
579 int pevent_read_number_field(struct format_field *field, const void *data,
580 unsigned long long *value);
582 struct event_format *pevent_find_event(struct pevent *pevent, int id);
584 struct event_format *
585 pevent_find_event_by_name(struct pevent *pevent, const char *sys, const char *name);
587 void pevent_data_lat_fmt(struct pevent *pevent,
588 struct trace_seq *s, struct pevent_record *record);
589 int pevent_data_type(struct pevent *pevent, struct pevent_record *rec);
590 struct event_format *pevent_data_event_from_type(struct pevent *pevent, int type);
591 int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec);
592 const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid);
593 void pevent_event_info(struct trace_seq *s, struct event_format *event,
594 struct pevent_record *record);
595 int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum,
596 char *buf, size_t buflen);
598 struct event_format **pevent_list_events(struct pevent *pevent, enum event_sort_type);
599 struct format_field **pevent_event_common_fields(struct event_format *event);
600 struct format_field **pevent_event_fields(struct event_format *event);
602 static inline int pevent_get_cpus(struct pevent *pevent)
604 return pevent->cpus;
607 static inline void pevent_set_cpus(struct pevent *pevent, int cpus)
609 pevent->cpus = cpus;
612 static inline int pevent_get_long_size(struct pevent *pevent)
614 return pevent->long_size;
617 static inline void pevent_set_long_size(struct pevent *pevent, int long_size)
619 pevent->long_size = long_size;
622 static inline int pevent_is_file_bigendian(struct pevent *pevent)
624 return pevent->file_bigendian;
627 static inline void pevent_set_file_bigendian(struct pevent *pevent, int endian)
629 pevent->file_bigendian = endian;
632 static inline int pevent_is_host_bigendian(struct pevent *pevent)
634 return pevent->host_bigendian;
637 static inline void pevent_set_host_bigendian(struct pevent *pevent, int endian)
639 pevent->host_bigendian = endian;
642 static inline int pevent_is_latency_format(struct pevent *pevent)
644 return pevent->latency_format;
647 static inline void pevent_set_latency_format(struct pevent *pevent, int lat)
649 pevent->latency_format = lat;
652 struct pevent *pevent_alloc(void);
653 void pevent_free(struct pevent *pevent);
654 void pevent_ref(struct pevent *pevent);
655 void pevent_unref(struct pevent *pevent);
657 /* access to the internal parser */
658 void pevent_buffer_init(const char *buf, unsigned long long size);
659 enum event_type pevent_read_token(char **tok);
660 void pevent_free_token(char *token);
661 int pevent_peek_char(void);
662 const char *pevent_get_input_buf(void);
663 unsigned long long pevent_get_input_buf_ptr(void);
665 /* for debugging */
666 void pevent_print_funcs(struct pevent *pevent);
667 void pevent_print_printk(struct pevent *pevent);
669 /* ----------------------- filtering ----------------------- */
671 enum filter_boolean_type {
672 FILTER_FALSE,
673 FILTER_TRUE,
676 enum filter_op_type {
677 FILTER_OP_AND = 1,
678 FILTER_OP_OR,
679 FILTER_OP_NOT,
682 enum filter_cmp_type {
683 FILTER_CMP_NONE,
684 FILTER_CMP_EQ,
685 FILTER_CMP_NE,
686 FILTER_CMP_GT,
687 FILTER_CMP_LT,
688 FILTER_CMP_GE,
689 FILTER_CMP_LE,
690 FILTER_CMP_MATCH,
691 FILTER_CMP_NOT_MATCH,
692 FILTER_CMP_REGEX,
693 FILTER_CMP_NOT_REGEX,
696 enum filter_exp_type {
697 FILTER_EXP_NONE,
698 FILTER_EXP_ADD,
699 FILTER_EXP_SUB,
700 FILTER_EXP_MUL,
701 FILTER_EXP_DIV,
702 FILTER_EXP_MOD,
703 FILTER_EXP_RSHIFT,
704 FILTER_EXP_LSHIFT,
705 FILTER_EXP_AND,
706 FILTER_EXP_OR,
707 FILTER_EXP_XOR,
708 FILTER_EXP_NOT,
711 enum filter_arg_type {
712 FILTER_ARG_NONE,
713 FILTER_ARG_BOOLEAN,
714 FILTER_ARG_VALUE,
715 FILTER_ARG_FIELD,
716 FILTER_ARG_EXP,
717 FILTER_ARG_OP,
718 FILTER_ARG_NUM,
719 FILTER_ARG_STR,
722 enum filter_value_type {
723 FILTER_NUMBER,
724 FILTER_STRING,
725 FILTER_CHAR
728 struct fliter_arg;
730 struct filter_arg_boolean {
731 enum filter_boolean_type value;
734 struct filter_arg_field {
735 struct format_field *field;
738 struct filter_arg_value {
739 enum filter_value_type type;
740 union {
741 char *str;
742 unsigned long long val;
746 struct filter_arg_op {
747 enum filter_op_type type;
748 struct filter_arg *left;
749 struct filter_arg *right;
752 struct filter_arg_exp {
753 enum filter_exp_type type;
754 struct filter_arg *left;
755 struct filter_arg *right;
758 struct filter_arg_num {
759 enum filter_cmp_type type;
760 struct filter_arg *left;
761 struct filter_arg *right;
764 struct filter_arg_str {
765 enum filter_cmp_type type;
766 struct format_field *field;
767 char *val;
768 char *buffer;
769 regex_t reg;
772 struct filter_arg {
773 enum filter_arg_type type;
774 union {
775 struct filter_arg_boolean boolean;
776 struct filter_arg_field field;
777 struct filter_arg_value value;
778 struct filter_arg_op op;
779 struct filter_arg_exp exp;
780 struct filter_arg_num num;
781 struct filter_arg_str str;
785 struct filter_type {
786 int event_id;
787 struct event_format *event;
788 struct filter_arg *filter;
791 struct event_filter {
792 struct pevent *pevent;
793 int filters;
794 struct filter_type *event_filters;
797 struct event_filter *pevent_filter_alloc(struct pevent *pevent);
799 #define FILTER_NONE -2
800 #define FILTER_NOEXIST -1
801 #define FILTER_MISS 0
802 #define FILTER_MATCH 1
804 enum filter_trivial_type {
805 FILTER_TRIVIAL_FALSE,
806 FILTER_TRIVIAL_TRUE,
807 FILTER_TRIVIAL_BOTH,
810 int pevent_filter_add_filter_str(struct event_filter *filter,
811 const char *filter_str,
812 char **error_str);
815 int pevent_filter_match(struct event_filter *filter,
816 struct pevent_record *record);
818 int pevent_event_filtered(struct event_filter *filter,
819 int event_id);
821 void pevent_filter_reset(struct event_filter *filter);
823 void pevent_filter_clear_trivial(struct event_filter *filter,
824 enum filter_trivial_type type);
826 void pevent_filter_free(struct event_filter *filter);
828 char *pevent_filter_make_string(struct event_filter *filter, int event_id);
830 int pevent_filter_remove_event(struct event_filter *filter,
831 int event_id);
833 int pevent_filter_event_has_trivial(struct event_filter *filter,
834 int event_id,
835 enum filter_trivial_type type);
837 int pevent_filter_copy(struct event_filter *dest, struct event_filter *source);
839 int pevent_update_trivial(struct event_filter *dest, struct event_filter *source,
840 enum filter_trivial_type type);
842 int pevent_filter_compare(struct event_filter *filter1, struct event_filter *filter2);
844 #endif /* _PARSE_EVENTS_H */