tools/lib/traceevent/event-parse.h

   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 };
 129
 130 struct 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
 143 struct 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
 150 struct tep_print_arg_atom {
 151         char                    *atom;
 152 };
 153
 154 struct tep_print_arg_string {
 155         char                    *string;
 156         int                     offset;
 157 };
 158
 159 struct tep_print_arg_bitmask {
 160         char                    *bitmask;
 161         int                     offset;
 162 };
 163
 164 struct tep_print_arg_field {
 165         char                    *name;
 166         struct tep_format_field *field;
 167 };
 168
 169 struct tep_print_flag_sym {
 170         struct tep_print_flag_sym       *next;
 171         char                            *value;
 172         char                            *str;
 173 };
 174
 175 struct tep_print_arg_typecast {
 176         char                    *type;
 177         struct tep_print_arg    *item;
 178 };
 179
 180 struct tep_print_arg_flags {
 181         struct tep_print_arg            *field;
 182         char                            *delim;
 183         struct tep_print_flag_sym       *flags;
 184 };
 185
 186 struct tep_print_arg_symbol {
 187         struct tep_print_arg            *field;
 188         struct tep_print_flag_sym       *symbols;
 189 };
 190
 191 struct tep_print_arg_hex {
 192         struct tep_print_arg    *field;
 193         struct tep_print_arg    *size;
 194 };
 195
 196 struct 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
 202 struct tep_print_arg_dynarray {
 203         struct tep_format_field *field;
 204         struct tep_print_arg    *index;
 205 };
 206
 207 struct tep_print_arg;
 208
 209 struct tep_print_arg_op {
 210         char                    *op;
 211         int                     prio;
 212         struct tep_print_arg    *left;
 213         struct tep_print_arg    *right;
 214 };
 215
 216 struct tep_function_handler;
 217
 218 struct tep_print_arg_func {
 219         struct tep_function_handler     *func;
 220         struct tep_print_arg            *args;
 221 };
 222
 223 enum 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
 242 struct 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
 261 struct tep_print_parse;
 262
 263 struct tep_print_fmt {
 264         char                    *format;
 265         struct tep_print_arg    *args;
 266         struct tep_print_parse  *print_cache;
 267 };
 268
 269 struct 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
 281 enum {
 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
 293 enum tep_event_sort_type {
 294         TEP_EVENT_SORT_ID,
 295         TEP_EVENT_SORT_NAME,
 296         TEP_EVENT_SORT_SYSTEM,
 297 };
 298
 299 enum 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
 311 typedef unsigned long long (*tep_func_handler)(struct trace_seq *s,
 312                                                unsigned long long *args);
 313
 314 enum 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
 323 enum 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
 362 enum 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
 381 struct tep_plugin_list;
 382
 383 #define INVALID_PLUGIN_LIST_OPTION      ((char **)((unsigned long)-1))
 384
 385 enum tep_plugin_load_priority {
 386         TEP_PLUGIN_FIRST,
 387         TEP_PLUGIN_LAST,
 388 };
 389
 390 int tep_add_plugin_path(struct tep_handle *tep, char *path,
 391                         enum tep_plugin_load_priority prio);
 392 struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep);
 393 void tep_unload_plugins(struct tep_plugin_list *plugin_list,
 394                         struct tep_handle *tep);
 395 void 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);
 401 char **tep_plugin_list_options(void);
 402 void tep_plugin_free_options_list(char **list);
 403 int tep_plugin_add_options(const char *name,
 404                            struct tep_plugin_option *options);
 405 int tep_plugin_add_option(const char *name, const char *val);
 406 void tep_plugin_remove_options(struct tep_plugin_option *options);
 407 void tep_plugin_print_options(struct trace_seq *s);
 408 void 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 */
 413 typedef char *(tep_func_resolver_t)(void *priv,
 414                                     unsigned long long *addrp, char **modp);
 415 void tep_set_flag(struct tep_handle *tep, int flag);
 416 void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
 417 bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags);
 418
 419 static 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 */
 429 enum 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
 437 int tep_set_function_resolver(struct tep_handle *tep,
 438                               tep_func_resolver_t *func, void *priv);
 439 void tep_reset_function_resolver(struct tep_handle *tep);
 440 int tep_register_comm(struct tep_handle *tep, const char *comm, int pid);
 441 int tep_override_comm(struct tep_handle *tep, const char *comm, int pid);
 442 int tep_register_function(struct tep_handle *tep, char *name,
 443                           unsigned long long addr, char *mod);
 444 int tep_register_print_string(struct tep_handle *tep, const char *fmt,
 445                               unsigned long long addr);
 446 bool tep_is_pid_registered(struct tep_handle *tep, int pid);
 447
 448 struct 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
 459 void 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
 463 int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
 464                           int long_size);
 465
 466 enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
 467                                unsigned long size, const char *sys);
 468 enum 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
 473 void *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
 477 int 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);
 480 int 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);
 483 int 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
 487 int 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
 491 int 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
 495 enum tep_reg_handler {
 496         TEP_REGISTER_SUCCESS = 0,
 497         TEP_REGISTER_SUCCESS_OVERWRITE,
 498 };
 499
 500 int 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);
 503 int 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);
 506 int tep_register_print_function(struct tep_handle *tep,
 507                                 tep_func_handler func,
 508                                 enum tep_func_arg_type ret_type,
 509                                 char *name, ...);
 510 int tep_unregister_print_function(struct tep_handle *tep,
 511                                   tep_func_handler func, char *name);
 512
 513 struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name);
 514 struct tep_format_field *tep_find_field(struct tep_event *event, const char *name);
 515 struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name);
 516
 517 const char *tep_find_function(struct tep_handle *tep, unsigned long long addr);
 518 unsigned long long
 519 tep_find_function_address(struct tep_handle *tep, unsigned long long addr);
 520 unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size);
 521 int tep_read_number_field(struct tep_format_field *field, const void *data,
 522                           unsigned long long *value);
 523
 524 struct tep_event *tep_get_first_event(struct tep_handle *tep);
 525 int tep_get_events_count(struct tep_handle *tep);
 526 struct tep_event *tep_find_event(struct tep_handle *tep, int id);
 527
 528 struct tep_event *
 529 tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name);
 530 struct tep_event *
 531 tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record);
 532
 533 int tep_data_type(struct tep_handle *tep, struct tep_record *rec);
 534 int tep_data_pid(struct tep_handle *tep, struct tep_record *rec);
 535 int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec);
 536 int tep_data_flags(struct tep_handle *tep, struct tep_record *rec);
 537 const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid);
 538 struct tep_cmdline;
 539 struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
 540                                            struct tep_cmdline *next);
 541 int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline);
 542
 543 void tep_print_field(struct trace_seq *s, void *data,
 544                      struct tep_format_field *field);
 545 void tep_print_fields(struct trace_seq *s, void *data,
 546                       int size __maybe_unused, struct tep_event *event);
 547 int tep_strerror(struct tep_handle *tep, enum tep_errno errnum,
 548                  char *buf, size_t buflen);
 549
 550 struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type);
 551 struct tep_event **tep_list_events_copy(struct tep_handle *tep,
 552                                         enum tep_event_sort_type);
 553 struct tep_format_field **tep_event_common_fields(struct tep_event *event);
 554 struct tep_format_field **tep_event_fields(struct tep_event *event);
 555
 556 enum tep_endian {
 557         TEP_LITTLE_ENDIAN = 0,
 558         TEP_BIG_ENDIAN
 559 };
 560 int tep_get_cpus(struct tep_handle *tep);
 561 void tep_set_cpus(struct tep_handle *tep, int cpus);
 562 int tep_get_long_size(struct tep_handle *tep);
 563 void tep_set_long_size(struct tep_handle *tep, int long_size);
 564 int tep_get_page_size(struct tep_handle *tep);
 565 void tep_set_page_size(struct tep_handle *tep, int _page_size);
 566 bool tep_is_file_bigendian(struct tep_handle *tep);
 567 void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian);
 568 bool tep_is_local_bigendian(struct tep_handle *tep);
 569 void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian);
 570 int tep_get_header_page_size(struct tep_handle *tep);
 571 int tep_get_header_timestamp_size(struct tep_handle *tep);
 572 bool tep_is_old_format(struct tep_handle *tep);
 573 void tep_set_test_filters(struct tep_handle *tep, int test_filters);
 574
 575 struct tep_handle *tep_alloc(void);
 576 void tep_free(struct tep_handle *tep);
 577 void tep_ref(struct tep_handle *tep);
 578 void tep_unref(struct tep_handle *tep);
 579 int tep_get_ref(struct tep_handle *tep);
 580
 581 /* for debugging */
 582 void tep_print_funcs(struct tep_handle *tep);
 583 void tep_print_printk(struct tep_handle *tep);
 584
 585 /* ----------------------- filtering ----------------------- */
 586
 587 enum tep_filter_boolean_type {
 588         TEP_FILTER_FALSE,
 589         TEP_FILTER_TRUE,
 590 };
 591
 592 enum tep_filter_op_type {
 593         TEP_FILTER_OP_AND = 1,
 594         TEP_FILTER_OP_OR,
 595         TEP_FILTER_OP_NOT,
 596 };
 597
 598 enum 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
 612 enum 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
 627 enum 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
 638 enum tep_filter_value_type {
 639         TEP_FILTER_NUMBER,
 640         TEP_FILTER_STRING,
 641         TEP_FILTER_CHAR
 642 };
 643
 644 struct tep_filter_arg;
 645
 646 struct tep_filter_arg_boolean {
 647         enum tep_filter_boolean_type    value;
 648 };
 649
 650 struct tep_filter_arg_field {
 651         struct tep_format_field         *field;
 652 };
 653
 654 struct tep_filter_arg_value {
 655         enum tep_filter_value_type      type;
 656         union {
 657                 char                    *str;
 658                 unsigned long long      val;
 659         };
 660 };
 661
 662 struct 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
 668 struct 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
 674 struct 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
 680 struct 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
 688 struct 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
 701 struct 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
 709 struct 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
 716 struct 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
 724 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 725                                          const char *filter_str);
 726
 727 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 728                                 struct tep_record *record);
 729
 730 int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
 731                         char *buf, size_t buflen);
 732
 733 int tep_event_filtered(struct tep_event_filter *filter,
 734                        int event_id);
 735
 736 void tep_filter_reset(struct tep_event_filter *filter);
 737
 738 void tep_filter_free(struct tep_event_filter *filter);
 739
 740 char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
 741
 742 int tep_filter_remove_event(struct tep_event_filter *filter,
 743                             int event_id);
 744
 745 int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
 746
 747 int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
 748
 749 #endif /* _PARSE_EVENTS_H */