Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
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
39struct 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
59struct tep_handle;
60struct tep_event_format;
61
62typedef int (*tep_event_handler_func)(struct trace_seq *s,
63 struct tep_record *record,
64 struct tep_event_format *event,
65 void *context);
66
67typedef int (*tep_plugin_load_func)(struct tep_handle *pevent);
68typedef int (*tep_plugin_unload_func)(struct tep_handle *pevent);
69
70struct 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 *pevent)
89 *
90 * TEP_PLUGIN_UNLOADER: (optional)
91 * The function called just before unloading
92 *
93 * int TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
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
133enum 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
144struct tep_format_field {
145 struct tep_format_field *next;
146 struct tep_event_format *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
157struct 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
164struct tep_print_arg_atom {
165 char *atom;
166};
167
168struct tep_print_arg_string {
169 char *string;
170 int offset;
171};
172
173struct tep_print_arg_bitmask {
174 char *bitmask;
175 int offset;
176};
177
178struct tep_print_arg_field {
179 char *name;
180 struct tep_format_field *field;
181};
182
183struct tep_print_flag_sym {
184 struct tep_print_flag_sym *next;
185 char *value;
186 char *str;
187};
188
189struct tep_print_arg_typecast {
190 char *type;
191 struct tep_print_arg *item;
192};
193
194struct tep_print_arg_flags {
195 struct tep_print_arg *field;
196 char *delim;
197 struct tep_print_flag_sym *flags;
198};
199
200struct tep_print_arg_symbol {
201 struct tep_print_arg *field;
202 struct tep_print_flag_sym *symbols;
203};
204
205struct tep_print_arg_hex {
206 struct tep_print_arg *field;
207 struct tep_print_arg *size;
208};
209
210struct 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
216struct tep_print_arg_dynarray {
217 struct tep_format_field *field;
218 struct tep_print_arg *index;
219};
220
221struct tep_print_arg;
222
223struct tep_print_arg_op {
224 char *op;
225 int prio;
226 struct tep_print_arg *left;
227 struct tep_print_arg *right;
228};
229
230struct tep_function_handler;
231
232struct tep_print_arg_func {
233 struct tep_function_handler *func;
234 struct tep_print_arg *args;
235};
236
237enum 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
256struct 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
275struct tep_print_fmt {
276 char *format;
277 struct tep_print_arg *args;
278};
279
280struct tep_event_format {
281 struct tep_handle *pevent;
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
292enum {
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
304enum tep_event_sort_type {
305 TEP_EVENT_SORT_ID,
306 TEP_EVENT_SORT_NAME,
307 TEP_EVENT_SORT_SYSTEM,
308};
309
310enum 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
322typedef unsigned long long (*tep_func_handler)(struct trace_seq *s,
323 unsigned long long *args);
324
325enum 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
334enum 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
373enum 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
392struct tep_plugin_list;
393
394#define INVALID_PLUGIN_LIST_OPTION ((char **)((unsigned long)-1))
395
396struct tep_plugin_list *tep_load_plugins(struct tep_handle *pevent);
397void tep_unload_plugins(struct tep_plugin_list *plugin_list,
398 struct tep_handle *pevent);
399char **tep_plugin_list_options(void);
400void tep_plugin_free_options_list(char **list);
401int tep_plugin_add_options(const char *name,
402 struct tep_plugin_option *options);
403void tep_plugin_remove_options(struct tep_plugin_option *options);
404void 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 */
409typedef char *(tep_func_resolver_t)(void *priv,
410 unsigned long long *addrp, char **modp);
411void tep_set_flag(struct tep_handle *tep, int flag);
412unsigned short __tep_data2host2(struct tep_handle *pevent, unsigned short data);
413unsigned int __tep_data2host4(struct tep_handle *pevent, unsigned int data);
414unsigned long long
415__tep_data2host8(struct tep_handle *pevent, unsigned long long data);
416
417#define tep_data2host2(pevent, ptr) __tep_data2host2(pevent, *(unsigned short *)(ptr))
418#define tep_data2host4(pevent, ptr) __tep_data2host4(pevent, *(unsigned int *)(ptr))
419#define tep_data2host8(pevent, ptr) \
420({ \
421 unsigned long long __val; \
422 \
423 memcpy(&__val, (ptr), sizeof(unsigned long long)); \
424 __tep_data2host8(pevent, __val); \
425})
426
427static inline int tep_host_bigendian(void)
428{
429 unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
430 unsigned int val;
431
432 memcpy(&val, str, 4);
433 return val == 0x01020304;
434}
435
436/* taken from kernel/trace/trace.h */
437enum trace_flag_type {
438 TRACE_FLAG_IRQS_OFF = 0x01,
439 TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
440 TRACE_FLAG_NEED_RESCHED = 0x04,
441 TRACE_FLAG_HARDIRQ = 0x08,
442 TRACE_FLAG_SOFTIRQ = 0x10,
443};
444
445int tep_set_function_resolver(struct tep_handle *pevent,
446 tep_func_resolver_t *func, void *priv);
447void tep_reset_function_resolver(struct tep_handle *pevent);
448int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid);
449int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock);
450int tep_register_function(struct tep_handle *pevent, char *name,
451 unsigned long long addr, char *mod);
452int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
453 unsigned long long addr);
454int tep_pid_is_registered(struct tep_handle *pevent, int pid);
455
456void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
457 struct tep_event_format *event,
458 struct tep_record *record);
459void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
460 struct tep_event_format *event,
461 struct tep_record *record,
462 bool use_trace_clock);
463void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
464 struct tep_event_format *event,
465 struct tep_record *record);
466void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
467 struct tep_record *record, bool use_trace_clock);
468
469int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
470 int long_size);
471
472enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
473 unsigned long size, const char *sys);
474enum tep_errno tep_parse_format(struct tep_handle *pevent,
475 struct tep_event_format **eventp,
476 const char *buf,
477 unsigned long size, const char *sys);
478void tep_free_format(struct tep_event_format *event);
479void tep_free_format_field(struct tep_format_field *field);
480
481void *tep_get_field_raw(struct trace_seq *s, struct tep_event_format *event,
482 const char *name, struct tep_record *record,
483 int *len, int err);
484
485int tep_get_field_val(struct trace_seq *s, struct tep_event_format *event,
486 const char *name, struct tep_record *record,
487 unsigned long long *val, int err);
488int tep_get_common_field_val(struct trace_seq *s, struct tep_event_format *event,
489 const char *name, struct tep_record *record,
490 unsigned long long *val, int err);
491int tep_get_any_field_val(struct trace_seq *s, struct tep_event_format *event,
492 const char *name, struct tep_record *record,
493 unsigned long long *val, int err);
494
495int tep_print_num_field(struct trace_seq *s, const char *fmt,
496 struct tep_event_format *event, const char *name,
497 struct tep_record *record, int err);
498
499int tep_print_func_field(struct trace_seq *s, const char *fmt,
500 struct tep_event_format *event, const char *name,
501 struct tep_record *record, int err);
502
503int tep_register_event_handler(struct tep_handle *pevent, int id,
504 const char *sys_name, const char *event_name,
505 tep_event_handler_func func, void *context);
506int tep_unregister_event_handler(struct tep_handle *pevent, int id,
507 const char *sys_name, const char *event_name,
508 tep_event_handler_func func, void *context);
509int tep_register_print_function(struct tep_handle *pevent,
510 tep_func_handler func,
511 enum tep_func_arg_type ret_type,
512 char *name, ...);
513int tep_unregister_print_function(struct tep_handle *pevent,
514 tep_func_handler func, char *name);
515
516struct tep_format_field *tep_find_common_field(struct tep_event_format *event, const char *name);
517struct tep_format_field *tep_find_field(struct tep_event_format *event, const char *name);
518struct tep_format_field *tep_find_any_field(struct tep_event_format *event, const char *name);
519
520const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr);
521unsigned long long
522tep_find_function_address(struct tep_handle *pevent, unsigned long long addr);
523unsigned long long tep_read_number(struct tep_handle *pevent, const void *ptr, int size);
524int tep_read_number_field(struct tep_format_field *field, const void *data,
525 unsigned long long *value);
526
527struct tep_event_format *tep_get_first_event(struct tep_handle *tep);
528int tep_get_events_count(struct tep_handle *tep);
529struct tep_event_format *tep_find_event(struct tep_handle *pevent, int id);
530
531struct tep_event_format *
532tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *name);
533struct tep_event_format *
534tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
535
536void tep_data_lat_fmt(struct tep_handle *pevent,
537 struct trace_seq *s, struct tep_record *record);
538int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
539struct tep_event_format *tep_data_event_from_type(struct tep_handle *pevent, int type);
540int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
541int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
542int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec);
543const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid);
544struct cmdline;
545struct cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
546 struct cmdline *next);
547int tep_cmdline_pid(struct tep_handle *pevent, struct cmdline *cmdline);
548
549void tep_print_field(struct trace_seq *s, void *data,
550 struct tep_format_field *field);
551void tep_print_fields(struct trace_seq *s, void *data,
552 int size __maybe_unused, struct tep_event_format *event);
553void tep_event_info(struct trace_seq *s, struct tep_event_format *event,
554 struct tep_record *record);
555int tep_strerror(struct tep_handle *pevent, enum tep_errno errnum,
556 char *buf, size_t buflen);
557
558struct tep_event_format **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type);
559struct tep_format_field **tep_event_common_fields(struct tep_event_format *event);
560struct tep_format_field **tep_event_fields(struct tep_event_format *event);
561
562enum tep_endian {
563 TEP_LITTLE_ENDIAN = 0,
564 TEP_BIG_ENDIAN
565};
566int tep_get_cpus(struct tep_handle *pevent);
567void tep_set_cpus(struct tep_handle *pevent, int cpus);
568int tep_get_long_size(struct tep_handle *pevent);
569void tep_set_long_size(struct tep_handle *pevent, int long_size);
570int tep_get_page_size(struct tep_handle *pevent);
571void tep_set_page_size(struct tep_handle *pevent, int _page_size);
572int tep_is_file_bigendian(struct tep_handle *pevent);
573void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
574int tep_is_host_bigendian(struct tep_handle *pevent);
575void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian);
576int tep_is_latency_format(struct tep_handle *pevent);
577void tep_set_latency_format(struct tep_handle *pevent, int lat);
578int tep_get_header_page_size(struct tep_handle *pevent);
579
580struct tep_handle *tep_alloc(void);
581void tep_free(struct tep_handle *pevent);
582void tep_ref(struct tep_handle *pevent);
583void tep_unref(struct tep_handle *pevent);
584
585/* access to the internal parser */
586void tep_buffer_init(const char *buf, unsigned long long size);
587enum tep_event_type tep_read_token(char **tok);
588void tep_free_token(char *token);
589int tep_peek_char(void);
590const char *tep_get_input_buf(void);
591unsigned long long tep_get_input_buf_ptr(void);
592
593/* for debugging */
594void tep_print_funcs(struct tep_handle *pevent);
595void tep_print_printk(struct tep_handle *pevent);
596
597/* ----------------------- filtering ----------------------- */
598
599enum tep_filter_boolean_type {
600 TEP_FILTER_FALSE,
601 TEP_FILTER_TRUE,
602};
603
604enum tep_filter_op_type {
605 TEP_FILTER_OP_AND = 1,
606 TEP_FILTER_OP_OR,
607 TEP_FILTER_OP_NOT,
608};
609
610enum tep_filter_cmp_type {
611 TEP_FILTER_CMP_NONE,
612 TEP_FILTER_CMP_EQ,
613 TEP_FILTER_CMP_NE,
614 TEP_FILTER_CMP_GT,
615 TEP_FILTER_CMP_LT,
616 TEP_FILTER_CMP_GE,
617 TEP_FILTER_CMP_LE,
618 TEP_FILTER_CMP_MATCH,
619 TEP_FILTER_CMP_NOT_MATCH,
620 TEP_FILTER_CMP_REGEX,
621 TEP_FILTER_CMP_NOT_REGEX,
622};
623
624enum tep_filter_exp_type {
625 TEP_FILTER_EXP_NONE,
626 TEP_FILTER_EXP_ADD,
627 TEP_FILTER_EXP_SUB,
628 TEP_FILTER_EXP_MUL,
629 TEP_FILTER_EXP_DIV,
630 TEP_FILTER_EXP_MOD,
631 TEP_FILTER_EXP_RSHIFT,
632 TEP_FILTER_EXP_LSHIFT,
633 TEP_FILTER_EXP_AND,
634 TEP_FILTER_EXP_OR,
635 TEP_FILTER_EXP_XOR,
636 TEP_FILTER_EXP_NOT,
637};
638
639enum tep_filter_arg_type {
640 TEP_FILTER_ARG_NONE,
641 TEP_FILTER_ARG_BOOLEAN,
642 TEP_FILTER_ARG_VALUE,
643 TEP_FILTER_ARG_FIELD,
644 TEP_FILTER_ARG_EXP,
645 TEP_FILTER_ARG_OP,
646 TEP_FILTER_ARG_NUM,
647 TEP_FILTER_ARG_STR,
648};
649
650enum tep_filter_value_type {
651 TEP_FILTER_NUMBER,
652 TEP_FILTER_STRING,
653 TEP_FILTER_CHAR
654};
655
656struct tep_filter_arg;
657
658struct tep_filter_arg_boolean {
659 enum tep_filter_boolean_type value;
660};
661
662struct tep_filter_arg_field {
663 struct tep_format_field *field;
664};
665
666struct tep_filter_arg_value {
667 enum tep_filter_value_type type;
668 union {
669 char *str;
670 unsigned long long val;
671 };
672};
673
674struct tep_filter_arg_op {
675 enum tep_filter_op_type type;
676 struct tep_filter_arg *left;
677 struct tep_filter_arg *right;
678};
679
680struct tep_filter_arg_exp {
681 enum tep_filter_exp_type type;
682 struct tep_filter_arg *left;
683 struct tep_filter_arg *right;
684};
685
686struct tep_filter_arg_num {
687 enum tep_filter_cmp_type type;
688 struct tep_filter_arg *left;
689 struct tep_filter_arg *right;
690};
691
692struct tep_filter_arg_str {
693 enum tep_filter_cmp_type type;
694 struct tep_format_field *field;
695 char *val;
696 char *buffer;
697 regex_t reg;
698};
699
700struct tep_filter_arg {
701 enum tep_filter_arg_type type;
702 union {
703 struct tep_filter_arg_boolean boolean;
704 struct tep_filter_arg_field field;
705 struct tep_filter_arg_value value;
706 struct tep_filter_arg_op op;
707 struct tep_filter_arg_exp exp;
708 struct tep_filter_arg_num num;
709 struct tep_filter_arg_str str;
710 };
711};
712
713struct tep_filter_type {
714 int event_id;
715 struct tep_event_format *event;
716 struct tep_filter_arg *filter;
717};
718
719#define TEP_FILTER_ERROR_BUFSZ 1024
720
721struct tep_event_filter {
722 struct tep_handle *pevent;
723 int filters;
724 struct tep_filter_type *event_filters;
725 char error_buffer[TEP_FILTER_ERROR_BUFSZ];
726};
727
728struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
729
730/* for backward compatibility */
731#define FILTER_NONE TEP_ERRNO__NO_FILTER
732#define FILTER_NOEXIST TEP_ERRNO__FILTER_NOT_FOUND
733#define FILTER_MISS TEP_ERRNO__FILTER_MISS
734#define FILTER_MATCH TEP_ERRNO__FILTER_MATCH
735
736enum tep_filter_trivial_type {
737 TEP_FILTER_TRIVIAL_FALSE,
738 TEP_FILTER_TRIVIAL_TRUE,
739 TEP_FILTER_TRIVIAL_BOTH,
740};
741
742enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
743 const char *filter_str);
744
745enum tep_errno tep_filter_match(struct tep_event_filter *filter,
746 struct tep_record *record);
747
748int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
749 char *buf, size_t buflen);
750
751int tep_event_filtered(struct tep_event_filter *filter,
752 int event_id);
753
754void tep_filter_reset(struct tep_event_filter *filter);
755
756int tep_filter_clear_trivial(struct tep_event_filter *filter,
757 enum tep_filter_trivial_type type);
758
759void tep_filter_free(struct tep_event_filter *filter);
760
761char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
762
763int tep_filter_remove_event(struct tep_event_filter *filter,
764 int event_id);
765
766int tep_filter_event_has_trivial(struct tep_event_filter *filter,
767 int event_id,
768 enum tep_filter_trivial_type type);
769
770int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
771
772int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
773 enum tep_filter_trivial_type type);
774
775int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
776
777#endif /* _PARSE_EVENTS_H */