mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 01:10:04 +00:00
![Javi Merino](/assets/img/avatar_default.png)
Since 6ea22486ba
("tracing: Add array printing helper") trace can
generate traces with variable element size arrays. Add support to
parse them.
Signed-off-by: Javi Merino <javi.merino@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1427195239-15730-1-git-send-email-javi.merino@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
964 lines
25 KiB
C
964 lines
25 KiB
C
/*
|
|
* Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation;
|
|
* version 2.1 of the License (not later!)
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this program; if not, see <http://www.gnu.org/licenses>
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*/
|
|
#ifndef _PARSE_EVENTS_H
|
|
#define _PARSE_EVENTS_H
|
|
|
|
#include <stdbool.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <regex.h>
|
|
#include <string.h>
|
|
|
|
#ifndef __maybe_unused
|
|
#define __maybe_unused __attribute__((unused))
|
|
#endif
|
|
|
|
/* ----------------------- trace_seq ----------------------- */
|
|
|
|
|
|
#ifndef TRACE_SEQ_BUF_SIZE
|
|
#define TRACE_SEQ_BUF_SIZE 4096
|
|
#endif
|
|
|
|
#ifndef DEBUG_RECORD
|
|
#define DEBUG_RECORD 0
|
|
#endif
|
|
|
|
struct pevent_record {
|
|
unsigned long long ts;
|
|
unsigned long long offset;
|
|
long long missed_events; /* buffer dropped events before */
|
|
int record_size; /* size of binary record */
|
|
int size; /* size of data */
|
|
void *data;
|
|
int cpu;
|
|
int ref_count;
|
|
int locked; /* Do not free, even if ref_count is zero */
|
|
void *priv;
|
|
#if DEBUG_RECORD
|
|
struct pevent_record *prev;
|
|
struct pevent_record *next;
|
|
long alloc_addr;
|
|
#endif
|
|
};
|
|
|
|
enum trace_seq_fail {
|
|
TRACE_SEQ__GOOD,
|
|
TRACE_SEQ__BUFFER_POISONED,
|
|
TRACE_SEQ__MEM_ALLOC_FAILED,
|
|
};
|
|
|
|
/*
|
|
* Trace sequences are used to allow a function to call several other functions
|
|
* to create a string of data to use (up to a max of PAGE_SIZE).
|
|
*/
|
|
|
|
struct trace_seq {
|
|
char *buffer;
|
|
unsigned int buffer_size;
|
|
unsigned int len;
|
|
unsigned int readpos;
|
|
enum trace_seq_fail state;
|
|
};
|
|
|
|
void trace_seq_init(struct trace_seq *s);
|
|
void trace_seq_reset(struct trace_seq *s);
|
|
void trace_seq_destroy(struct trace_seq *s);
|
|
|
|
extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
|
|
__attribute__ ((format (printf, 2, 3)));
|
|
extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args)
|
|
__attribute__ ((format (printf, 2, 0)));
|
|
|
|
extern int trace_seq_puts(struct trace_seq *s, const char *str);
|
|
extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
|
|
|
|
extern void trace_seq_terminate(struct trace_seq *s);
|
|
|
|
extern int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp);
|
|
extern int trace_seq_do_printf(struct trace_seq *s);
|
|
|
|
|
|
/* ----------------------- pevent ----------------------- */
|
|
|
|
struct pevent;
|
|
struct event_format;
|
|
|
|
typedef int (*pevent_event_handler_func)(struct trace_seq *s,
|
|
struct pevent_record *record,
|
|
struct event_format *event,
|
|
void *context);
|
|
|
|
typedef int (*pevent_plugin_load_func)(struct pevent *pevent);
|
|
typedef int (*pevent_plugin_unload_func)(struct pevent *pevent);
|
|
|
|
struct pevent_plugin_option {
|
|
struct pevent_plugin_option *next;
|
|
void *handle;
|
|
char *file;
|
|
char *name;
|
|
char *plugin_alias;
|
|
char *description;
|
|
const char *value;
|
|
void *priv;
|
|
int set;
|
|
};
|
|
|
|
/*
|
|
* Plugin hooks that can be called:
|
|
*
|
|
* PEVENT_PLUGIN_LOADER: (required)
|
|
* The function name to initialized the plugin.
|
|
*
|
|
* int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
|
|
*
|
|
* PEVENT_PLUGIN_UNLOADER: (optional)
|
|
* The function called just before unloading
|
|
*
|
|
* int PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
|
|
*
|
|
* PEVENT_PLUGIN_OPTIONS: (optional)
|
|
* Plugin options that can be set before loading
|
|
*
|
|
* struct pevent_plugin_option PEVENT_PLUGIN_OPTIONS[] = {
|
|
* {
|
|
* .name = "option-name",
|
|
* .plugin_alias = "overide-file-name", (optional)
|
|
* .description = "description of option to show users",
|
|
* },
|
|
* {
|
|
* .name = NULL,
|
|
* },
|
|
* };
|
|
*
|
|
* Array must end with .name = NULL;
|
|
*
|
|
*
|
|
* .plugin_alias is used to give a shorter name to access
|
|
* the vairable. Useful if a plugin handles more than one event.
|
|
*
|
|
* If .value is not set, then it is considered a boolean and only
|
|
* .set will be processed. If .value is defined, then it is considered
|
|
* a string option and .set will be ignored.
|
|
*
|
|
* PEVENT_PLUGIN_ALIAS: (optional)
|
|
* The name to use for finding options (uses filename if not defined)
|
|
*/
|
|
#define PEVENT_PLUGIN_LOADER pevent_plugin_loader
|
|
#define PEVENT_PLUGIN_UNLOADER pevent_plugin_unloader
|
|
#define PEVENT_PLUGIN_OPTIONS pevent_plugin_options
|
|
#define PEVENT_PLUGIN_ALIAS pevent_plugin_alias
|
|
#define _MAKE_STR(x) #x
|
|
#define MAKE_STR(x) _MAKE_STR(x)
|
|
#define PEVENT_PLUGIN_LOADER_NAME MAKE_STR(PEVENT_PLUGIN_LOADER)
|
|
#define PEVENT_PLUGIN_UNLOADER_NAME MAKE_STR(PEVENT_PLUGIN_UNLOADER)
|
|
#define PEVENT_PLUGIN_OPTIONS_NAME MAKE_STR(PEVENT_PLUGIN_OPTIONS)
|
|
#define PEVENT_PLUGIN_ALIAS_NAME MAKE_STR(PEVENT_PLUGIN_ALIAS)
|
|
|
|
#define NSECS_PER_SEC 1000000000ULL
|
|
#define NSECS_PER_USEC 1000ULL
|
|
|
|
enum format_flags {
|
|
FIELD_IS_ARRAY = 1,
|
|
FIELD_IS_POINTER = 2,
|
|
FIELD_IS_SIGNED = 4,
|
|
FIELD_IS_STRING = 8,
|
|
FIELD_IS_DYNAMIC = 16,
|
|
FIELD_IS_LONG = 32,
|
|
FIELD_IS_FLAG = 64,
|
|
FIELD_IS_SYMBOLIC = 128,
|
|
};
|
|
|
|
struct format_field {
|
|
struct format_field *next;
|
|
struct event_format *event;
|
|
char *type;
|
|
char *name;
|
|
int offset;
|
|
int size;
|
|
unsigned int arraylen;
|
|
unsigned int elementsize;
|
|
unsigned long flags;
|
|
};
|
|
|
|
struct format {
|
|
int nr_common;
|
|
int nr_fields;
|
|
struct format_field *common_fields;
|
|
struct format_field *fields;
|
|
};
|
|
|
|
struct print_arg_atom {
|
|
char *atom;
|
|
};
|
|
|
|
struct print_arg_string {
|
|
char *string;
|
|
int offset;
|
|
};
|
|
|
|
struct print_arg_bitmask {
|
|
char *bitmask;
|
|
int offset;
|
|
};
|
|
|
|
struct print_arg_field {
|
|
char *name;
|
|
struct format_field *field;
|
|
};
|
|
|
|
struct print_flag_sym {
|
|
struct print_flag_sym *next;
|
|
char *value;
|
|
char *str;
|
|
};
|
|
|
|
struct print_arg_typecast {
|
|
char *type;
|
|
struct print_arg *item;
|
|
};
|
|
|
|
struct print_arg_flags {
|
|
struct print_arg *field;
|
|
char *delim;
|
|
struct print_flag_sym *flags;
|
|
};
|
|
|
|
struct print_arg_symbol {
|
|
struct print_arg *field;
|
|
struct print_flag_sym *symbols;
|
|
};
|
|
|
|
struct print_arg_hex {
|
|
struct print_arg *field;
|
|
struct print_arg *size;
|
|
};
|
|
|
|
struct print_arg_int_array {
|
|
struct print_arg *field;
|
|
struct print_arg *count;
|
|
struct print_arg *el_size;
|
|
};
|
|
|
|
struct print_arg_dynarray {
|
|
struct format_field *field;
|
|
struct print_arg *index;
|
|
};
|
|
|
|
struct print_arg;
|
|
|
|
struct print_arg_op {
|
|
char *op;
|
|
int prio;
|
|
struct print_arg *left;
|
|
struct print_arg *right;
|
|
};
|
|
|
|
struct pevent_function_handler;
|
|
|
|
struct print_arg_func {
|
|
struct pevent_function_handler *func;
|
|
struct print_arg *args;
|
|
};
|
|
|
|
enum print_arg_type {
|
|
PRINT_NULL,
|
|
PRINT_ATOM,
|
|
PRINT_FIELD,
|
|
PRINT_FLAGS,
|
|
PRINT_SYMBOL,
|
|
PRINT_HEX,
|
|
PRINT_INT_ARRAY,
|
|
PRINT_TYPE,
|
|
PRINT_STRING,
|
|
PRINT_BSTRING,
|
|
PRINT_DYNAMIC_ARRAY,
|
|
PRINT_OP,
|
|
PRINT_FUNC,
|
|
PRINT_BITMASK,
|
|
};
|
|
|
|
struct print_arg {
|
|
struct print_arg *next;
|
|
enum print_arg_type type;
|
|
union {
|
|
struct print_arg_atom atom;
|
|
struct print_arg_field field;
|
|
struct print_arg_typecast typecast;
|
|
struct print_arg_flags flags;
|
|
struct print_arg_symbol symbol;
|
|
struct print_arg_hex hex;
|
|
struct print_arg_int_array int_array;
|
|
struct print_arg_func func;
|
|
struct print_arg_string string;
|
|
struct print_arg_bitmask bitmask;
|
|
struct print_arg_op op;
|
|
struct print_arg_dynarray dynarray;
|
|
};
|
|
};
|
|
|
|
struct print_fmt {
|
|
char *format;
|
|
struct print_arg *args;
|
|
};
|
|
|
|
struct event_format {
|
|
struct pevent *pevent;
|
|
char *name;
|
|
int id;
|
|
int flags;
|
|
struct format format;
|
|
struct print_fmt print_fmt;
|
|
char *system;
|
|
pevent_event_handler_func handler;
|
|
void *context;
|
|
};
|
|
|
|
enum {
|
|
EVENT_FL_ISFTRACE = 0x01,
|
|
EVENT_FL_ISPRINT = 0x02,
|
|
EVENT_FL_ISBPRINT = 0x04,
|
|
EVENT_FL_ISFUNCENT = 0x10,
|
|
EVENT_FL_ISFUNCRET = 0x20,
|
|
EVENT_FL_NOHANDLE = 0x40,
|
|
EVENT_FL_PRINTRAW = 0x80,
|
|
|
|
EVENT_FL_FAILED = 0x80000000
|
|
};
|
|
|
|
enum event_sort_type {
|
|
EVENT_SORT_ID,
|
|
EVENT_SORT_NAME,
|
|
EVENT_SORT_SYSTEM,
|
|
};
|
|
|
|
enum event_type {
|
|
EVENT_ERROR,
|
|
EVENT_NONE,
|
|
EVENT_SPACE,
|
|
EVENT_NEWLINE,
|
|
EVENT_OP,
|
|
EVENT_DELIM,
|
|
EVENT_ITEM,
|
|
EVENT_DQUOTE,
|
|
EVENT_SQUOTE,
|
|
};
|
|
|
|
typedef unsigned long long (*pevent_func_handler)(struct trace_seq *s,
|
|
unsigned long long *args);
|
|
|
|
enum pevent_func_arg_type {
|
|
PEVENT_FUNC_ARG_VOID,
|
|
PEVENT_FUNC_ARG_INT,
|
|
PEVENT_FUNC_ARG_LONG,
|
|
PEVENT_FUNC_ARG_STRING,
|
|
PEVENT_FUNC_ARG_PTR,
|
|
PEVENT_FUNC_ARG_MAX_TYPES
|
|
};
|
|
|
|
enum pevent_flag {
|
|
PEVENT_NSEC_OUTPUT = 1, /* output in NSECS */
|
|
PEVENT_DISABLE_SYS_PLUGINS = 1 << 1,
|
|
PEVENT_DISABLE_PLUGINS = 1 << 2,
|
|
};
|
|
|
|
#define PEVENT_ERRORS \
|
|
_PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \
|
|
_PE(PARSE_EVENT_FAILED, "failed to parse event"), \
|
|
_PE(READ_ID_FAILED, "failed to read event id"), \
|
|
_PE(READ_FORMAT_FAILED, "failed to read event format"), \
|
|
_PE(READ_PRINT_FAILED, "failed to read event print fmt"), \
|
|
_PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\
|
|
_PE(INVALID_ARG_TYPE, "invalid argument type"), \
|
|
_PE(INVALID_EXP_TYPE, "invalid expression type"), \
|
|
_PE(INVALID_OP_TYPE, "invalid operator type"), \
|
|
_PE(INVALID_EVENT_NAME, "invalid event name"), \
|
|
_PE(EVENT_NOT_FOUND, "no event found"), \
|
|
_PE(SYNTAX_ERROR, "syntax error"), \
|
|
_PE(ILLEGAL_RVALUE, "illegal rvalue"), \
|
|
_PE(ILLEGAL_LVALUE, "illegal lvalue for string comparison"), \
|
|
_PE(INVALID_REGEX, "regex did not compute"), \
|
|
_PE(ILLEGAL_STRING_CMP, "illegal comparison for string"), \
|
|
_PE(ILLEGAL_INTEGER_CMP,"illegal comparison for integer"), \
|
|
_PE(REPARENT_NOT_OP, "cannot reparent other than OP"), \
|
|
_PE(REPARENT_FAILED, "failed to reparent filter OP"), \
|
|
_PE(BAD_FILTER_ARG, "bad arg in filter tree"), \
|
|
_PE(UNEXPECTED_TYPE, "unexpected type (not a value)"), \
|
|
_PE(ILLEGAL_TOKEN, "illegal token"), \
|
|
_PE(INVALID_PAREN, "open parenthesis cannot come here"), \
|
|
_PE(UNBALANCED_PAREN, "unbalanced number of parenthesis"), \
|
|
_PE(UNKNOWN_TOKEN, "unknown token"), \
|
|
_PE(FILTER_NOT_FOUND, "no filter found"), \
|
|
_PE(NOT_A_NUMBER, "must have number field"), \
|
|
_PE(NO_FILTER, "no filters exists"), \
|
|
_PE(FILTER_MISS, "record does not match to filter")
|
|
|
|
#undef _PE
|
|
#define _PE(__code, __str) PEVENT_ERRNO__ ## __code
|
|
enum pevent_errno {
|
|
PEVENT_ERRNO__SUCCESS = 0,
|
|
PEVENT_ERRNO__FILTER_MATCH = PEVENT_ERRNO__SUCCESS,
|
|
|
|
/*
|
|
* Choose an arbitrary negative big number not to clash with standard
|
|
* errno since SUS requires the errno has distinct positive values.
|
|
* See 'Issue 6' in the link below.
|
|
*
|
|
* http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
|
|
*/
|
|
__PEVENT_ERRNO__START = -100000,
|
|
|
|
PEVENT_ERRORS,
|
|
|
|
__PEVENT_ERRNO__END,
|
|
};
|
|
#undef _PE
|
|
|
|
struct plugin_list;
|
|
|
|
#define INVALID_PLUGIN_LIST_OPTION ((char **)((unsigned long)-1))
|
|
|
|
struct plugin_list *traceevent_load_plugins(struct pevent *pevent);
|
|
void traceevent_unload_plugins(struct plugin_list *plugin_list,
|
|
struct pevent *pevent);
|
|
char **traceevent_plugin_list_options(void);
|
|
void traceevent_plugin_free_options_list(char **list);
|
|
int traceevent_plugin_add_options(const char *name,
|
|
struct pevent_plugin_option *options);
|
|
void traceevent_plugin_remove_options(struct pevent_plugin_option *options);
|
|
void traceevent_print_plugins(struct trace_seq *s,
|
|
const char *prefix, const char *suffix,
|
|
const struct plugin_list *list);
|
|
|
|
struct cmdline;
|
|
struct cmdline_list;
|
|
struct func_map;
|
|
struct func_list;
|
|
struct event_handler;
|
|
|
|
struct pevent {
|
|
int ref_count;
|
|
|
|
int header_page_ts_offset;
|
|
int header_page_ts_size;
|
|
int header_page_size_offset;
|
|
int header_page_size_size;
|
|
int header_page_data_offset;
|
|
int header_page_data_size;
|
|
int header_page_overwrite;
|
|
|
|
int file_bigendian;
|
|
int host_bigendian;
|
|
|
|
int latency_format;
|
|
|
|
int old_format;
|
|
|
|
int cpus;
|
|
int long_size;
|
|
int page_size;
|
|
|
|
struct cmdline *cmdlines;
|
|
struct cmdline_list *cmdlist;
|
|
int cmdline_count;
|
|
|
|
struct func_map *func_map;
|
|
struct func_list *funclist;
|
|
unsigned int func_count;
|
|
|
|
struct printk_map *printk_map;
|
|
struct printk_list *printklist;
|
|
unsigned int printk_count;
|
|
|
|
|
|
struct event_format **events;
|
|
int nr_events;
|
|
struct event_format **sort_events;
|
|
enum event_sort_type last_type;
|
|
|
|
int type_offset;
|
|
int type_size;
|
|
|
|
int pid_offset;
|
|
int pid_size;
|
|
|
|
int pc_offset;
|
|
int pc_size;
|
|
|
|
int flags_offset;
|
|
int flags_size;
|
|
|
|
int ld_offset;
|
|
int ld_size;
|
|
|
|
int print_raw;
|
|
|
|
int test_filters;
|
|
|
|
int flags;
|
|
|
|
struct format_field *bprint_ip_field;
|
|
struct format_field *bprint_fmt_field;
|
|
struct format_field *bprint_buf_field;
|
|
|
|
struct event_handler *handlers;
|
|
struct pevent_function_handler *func_handlers;
|
|
|
|
/* cache */
|
|
struct event_format *last_event;
|
|
|
|
char *trace_clock;
|
|
};
|
|
|
|
static inline void pevent_set_flag(struct pevent *pevent, int flag)
|
|
{
|
|
pevent->flags |= flag;
|
|
}
|
|
|
|
static inline unsigned short
|
|
__data2host2(struct pevent *pevent, unsigned short data)
|
|
{
|
|
unsigned short swap;
|
|
|
|
if (pevent->host_bigendian == pevent->file_bigendian)
|
|
return data;
|
|
|
|
swap = ((data & 0xffULL) << 8) |
|
|
((data & (0xffULL << 8)) >> 8);
|
|
|
|
return swap;
|
|
}
|
|
|
|
static inline unsigned int
|
|
__data2host4(struct pevent *pevent, unsigned int data)
|
|
{
|
|
unsigned int swap;
|
|
|
|
if (pevent->host_bigendian == pevent->file_bigendian)
|
|
return data;
|
|
|
|
swap = ((data & 0xffULL) << 24) |
|
|
((data & (0xffULL << 8)) << 8) |
|
|
((data & (0xffULL << 16)) >> 8) |
|
|
((data & (0xffULL << 24)) >> 24);
|
|
|
|
return swap;
|
|
}
|
|
|
|
static inline unsigned long long
|
|
__data2host8(struct pevent *pevent, unsigned long long data)
|
|
{
|
|
unsigned long long swap;
|
|
|
|
if (pevent->host_bigendian == pevent->file_bigendian)
|
|
return data;
|
|
|
|
swap = ((data & 0xffULL) << 56) |
|
|
((data & (0xffULL << 8)) << 40) |
|
|
((data & (0xffULL << 16)) << 24) |
|
|
((data & (0xffULL << 24)) << 8) |
|
|
((data & (0xffULL << 32)) >> 8) |
|
|
((data & (0xffULL << 40)) >> 24) |
|
|
((data & (0xffULL << 48)) >> 40) |
|
|
((data & (0xffULL << 56)) >> 56);
|
|
|
|
return swap;
|
|
}
|
|
|
|
#define data2host2(pevent, ptr) __data2host2(pevent, *(unsigned short *)(ptr))
|
|
#define data2host4(pevent, ptr) __data2host4(pevent, *(unsigned int *)(ptr))
|
|
#define data2host8(pevent, ptr) \
|
|
({ \
|
|
unsigned long long __val; \
|
|
\
|
|
memcpy(&__val, (ptr), sizeof(unsigned long long)); \
|
|
__data2host8(pevent, __val); \
|
|
})
|
|
|
|
static inline int traceevent_host_bigendian(void)
|
|
{
|
|
unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
|
|
unsigned int val;
|
|
|
|
memcpy(&val, str, 4);
|
|
return val == 0x01020304;
|
|
}
|
|
|
|
/* taken from kernel/trace/trace.h */
|
|
enum trace_flag_type {
|
|
TRACE_FLAG_IRQS_OFF = 0x01,
|
|
TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
|
|
TRACE_FLAG_NEED_RESCHED = 0x04,
|
|
TRACE_FLAG_HARDIRQ = 0x08,
|
|
TRACE_FLAG_SOFTIRQ = 0x10,
|
|
};
|
|
|
|
int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
|
|
int pevent_register_trace_clock(struct pevent *pevent, const char *trace_clock);
|
|
int pevent_register_function(struct pevent *pevent, char *name,
|
|
unsigned long long addr, char *mod);
|
|
int pevent_register_print_string(struct pevent *pevent, const char *fmt,
|
|
unsigned long long addr);
|
|
int pevent_pid_is_registered(struct pevent *pevent, int pid);
|
|
|
|
void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
|
|
struct pevent_record *record, bool use_trace_clock);
|
|
|
|
int pevent_parse_header_page(struct pevent *pevent, char *buf, unsigned long size,
|
|
int long_size);
|
|
|
|
enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
|
|
unsigned long size, const char *sys);
|
|
enum pevent_errno pevent_parse_format(struct pevent *pevent,
|
|
struct event_format **eventp,
|
|
const char *buf,
|
|
unsigned long size, const char *sys);
|
|
void pevent_free_format(struct event_format *event);
|
|
void pevent_free_format_field(struct format_field *field);
|
|
|
|
void *pevent_get_field_raw(struct trace_seq *s, struct event_format *event,
|
|
const char *name, struct pevent_record *record,
|
|
int *len, int err);
|
|
|
|
int pevent_get_field_val(struct trace_seq *s, struct event_format *event,
|
|
const char *name, struct pevent_record *record,
|
|
unsigned long long *val, int err);
|
|
int pevent_get_common_field_val(struct trace_seq *s, struct event_format *event,
|
|
const char *name, struct pevent_record *record,
|
|
unsigned long long *val, int err);
|
|
int pevent_get_any_field_val(struct trace_seq *s, struct event_format *event,
|
|
const char *name, struct pevent_record *record,
|
|
unsigned long long *val, int err);
|
|
|
|
int pevent_print_num_field(struct trace_seq *s, const char *fmt,
|
|
struct event_format *event, const char *name,
|
|
struct pevent_record *record, int err);
|
|
|
|
int pevent_print_func_field(struct trace_seq *s, const char *fmt,
|
|
struct event_format *event, const char *name,
|
|
struct pevent_record *record, int err);
|
|
|
|
int pevent_register_event_handler(struct pevent *pevent, int id,
|
|
const char *sys_name, const char *event_name,
|
|
pevent_event_handler_func func, void *context);
|
|
int pevent_unregister_event_handler(struct pevent *pevent, int id,
|
|
const char *sys_name, const char *event_name,
|
|
pevent_event_handler_func func, void *context);
|
|
int pevent_register_print_function(struct pevent *pevent,
|
|
pevent_func_handler func,
|
|
enum pevent_func_arg_type ret_type,
|
|
char *name, ...);
|
|
int pevent_unregister_print_function(struct pevent *pevent,
|
|
pevent_func_handler func, char *name);
|
|
|
|
struct format_field *pevent_find_common_field(struct event_format *event, const char *name);
|
|
struct format_field *pevent_find_field(struct event_format *event, const char *name);
|
|
struct format_field *pevent_find_any_field(struct event_format *event, const char *name);
|
|
|
|
const char *pevent_find_function(struct pevent *pevent, unsigned long long addr);
|
|
unsigned long long
|
|
pevent_find_function_address(struct pevent *pevent, unsigned long long addr);
|
|
unsigned long long pevent_read_number(struct pevent *pevent, const void *ptr, int size);
|
|
int pevent_read_number_field(struct format_field *field, const void *data,
|
|
unsigned long long *value);
|
|
|
|
struct event_format *pevent_find_event(struct pevent *pevent, int id);
|
|
|
|
struct event_format *
|
|
pevent_find_event_by_name(struct pevent *pevent, const char *sys, const char *name);
|
|
|
|
void pevent_data_lat_fmt(struct pevent *pevent,
|
|
struct trace_seq *s, struct pevent_record *record);
|
|
int pevent_data_type(struct pevent *pevent, struct pevent_record *rec);
|
|
struct event_format *pevent_data_event_from_type(struct pevent *pevent, int type);
|
|
int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec);
|
|
const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid);
|
|
struct cmdline;
|
|
struct cmdline *pevent_data_pid_from_comm(struct pevent *pevent, const char *comm,
|
|
struct cmdline *next);
|
|
int pevent_cmdline_pid(struct pevent *pevent, struct cmdline *cmdline);
|
|
|
|
void pevent_event_info(struct trace_seq *s, struct event_format *event,
|
|
struct pevent_record *record);
|
|
int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum,
|
|
char *buf, size_t buflen);
|
|
|
|
struct event_format **pevent_list_events(struct pevent *pevent, enum event_sort_type);
|
|
struct format_field **pevent_event_common_fields(struct event_format *event);
|
|
struct format_field **pevent_event_fields(struct event_format *event);
|
|
|
|
static inline int pevent_get_cpus(struct pevent *pevent)
|
|
{
|
|
return pevent->cpus;
|
|
}
|
|
|
|
static inline void pevent_set_cpus(struct pevent *pevent, int cpus)
|
|
{
|
|
pevent->cpus = cpus;
|
|
}
|
|
|
|
static inline int pevent_get_long_size(struct pevent *pevent)
|
|
{
|
|
return pevent->long_size;
|
|
}
|
|
|
|
static inline void pevent_set_long_size(struct pevent *pevent, int long_size)
|
|
{
|
|
pevent->long_size = long_size;
|
|
}
|
|
|
|
static inline int pevent_get_page_size(struct pevent *pevent)
|
|
{
|
|
return pevent->page_size;
|
|
}
|
|
|
|
static inline void pevent_set_page_size(struct pevent *pevent, int _page_size)
|
|
{
|
|
pevent->page_size = _page_size;
|
|
}
|
|
|
|
static inline int pevent_is_file_bigendian(struct pevent *pevent)
|
|
{
|
|
return pevent->file_bigendian;
|
|
}
|
|
|
|
static inline void pevent_set_file_bigendian(struct pevent *pevent, int endian)
|
|
{
|
|
pevent->file_bigendian = endian;
|
|
}
|
|
|
|
static inline int pevent_is_host_bigendian(struct pevent *pevent)
|
|
{
|
|
return pevent->host_bigendian;
|
|
}
|
|
|
|
static inline void pevent_set_host_bigendian(struct pevent *pevent, int endian)
|
|
{
|
|
pevent->host_bigendian = endian;
|
|
}
|
|
|
|
static inline int pevent_is_latency_format(struct pevent *pevent)
|
|
{
|
|
return pevent->latency_format;
|
|
}
|
|
|
|
static inline void pevent_set_latency_format(struct pevent *pevent, int lat)
|
|
{
|
|
pevent->latency_format = lat;
|
|
}
|
|
|
|
struct pevent *pevent_alloc(void);
|
|
void pevent_free(struct pevent *pevent);
|
|
void pevent_ref(struct pevent *pevent);
|
|
void pevent_unref(struct pevent *pevent);
|
|
|
|
/* access to the internal parser */
|
|
void pevent_buffer_init(const char *buf, unsigned long long size);
|
|
enum event_type pevent_read_token(char **tok);
|
|
void pevent_free_token(char *token);
|
|
int pevent_peek_char(void);
|
|
const char *pevent_get_input_buf(void);
|
|
unsigned long long pevent_get_input_buf_ptr(void);
|
|
|
|
/* for debugging */
|
|
void pevent_print_funcs(struct pevent *pevent);
|
|
void pevent_print_printk(struct pevent *pevent);
|
|
|
|
/* ----------------------- filtering ----------------------- */
|
|
|
|
enum filter_boolean_type {
|
|
FILTER_FALSE,
|
|
FILTER_TRUE,
|
|
};
|
|
|
|
enum filter_op_type {
|
|
FILTER_OP_AND = 1,
|
|
FILTER_OP_OR,
|
|
FILTER_OP_NOT,
|
|
};
|
|
|
|
enum filter_cmp_type {
|
|
FILTER_CMP_NONE,
|
|
FILTER_CMP_EQ,
|
|
FILTER_CMP_NE,
|
|
FILTER_CMP_GT,
|
|
FILTER_CMP_LT,
|
|
FILTER_CMP_GE,
|
|
FILTER_CMP_LE,
|
|
FILTER_CMP_MATCH,
|
|
FILTER_CMP_NOT_MATCH,
|
|
FILTER_CMP_REGEX,
|
|
FILTER_CMP_NOT_REGEX,
|
|
};
|
|
|
|
enum filter_exp_type {
|
|
FILTER_EXP_NONE,
|
|
FILTER_EXP_ADD,
|
|
FILTER_EXP_SUB,
|
|
FILTER_EXP_MUL,
|
|
FILTER_EXP_DIV,
|
|
FILTER_EXP_MOD,
|
|
FILTER_EXP_RSHIFT,
|
|
FILTER_EXP_LSHIFT,
|
|
FILTER_EXP_AND,
|
|
FILTER_EXP_OR,
|
|
FILTER_EXP_XOR,
|
|
FILTER_EXP_NOT,
|
|
};
|
|
|
|
enum filter_arg_type {
|
|
FILTER_ARG_NONE,
|
|
FILTER_ARG_BOOLEAN,
|
|
FILTER_ARG_VALUE,
|
|
FILTER_ARG_FIELD,
|
|
FILTER_ARG_EXP,
|
|
FILTER_ARG_OP,
|
|
FILTER_ARG_NUM,
|
|
FILTER_ARG_STR,
|
|
};
|
|
|
|
enum filter_value_type {
|
|
FILTER_NUMBER,
|
|
FILTER_STRING,
|
|
FILTER_CHAR
|
|
};
|
|
|
|
struct fliter_arg;
|
|
|
|
struct filter_arg_boolean {
|
|
enum filter_boolean_type value;
|
|
};
|
|
|
|
struct filter_arg_field {
|
|
struct format_field *field;
|
|
};
|
|
|
|
struct filter_arg_value {
|
|
enum filter_value_type type;
|
|
union {
|
|
char *str;
|
|
unsigned long long val;
|
|
};
|
|
};
|
|
|
|
struct filter_arg_op {
|
|
enum filter_op_type type;
|
|
struct filter_arg *left;
|
|
struct filter_arg *right;
|
|
};
|
|
|
|
struct filter_arg_exp {
|
|
enum filter_exp_type type;
|
|
struct filter_arg *left;
|
|
struct filter_arg *right;
|
|
};
|
|
|
|
struct filter_arg_num {
|
|
enum filter_cmp_type type;
|
|
struct filter_arg *left;
|
|
struct filter_arg *right;
|
|
};
|
|
|
|
struct filter_arg_str {
|
|
enum filter_cmp_type type;
|
|
struct format_field *field;
|
|
char *val;
|
|
char *buffer;
|
|
regex_t reg;
|
|
};
|
|
|
|
struct filter_arg {
|
|
enum filter_arg_type type;
|
|
union {
|
|
struct filter_arg_boolean boolean;
|
|
struct filter_arg_field field;
|
|
struct filter_arg_value value;
|
|
struct filter_arg_op op;
|
|
struct filter_arg_exp exp;
|
|
struct filter_arg_num num;
|
|
struct filter_arg_str str;
|
|
};
|
|
};
|
|
|
|
struct filter_type {
|
|
int event_id;
|
|
struct event_format *event;
|
|
struct filter_arg *filter;
|
|
};
|
|
|
|
#define PEVENT_FILTER_ERROR_BUFSZ 1024
|
|
|
|
struct event_filter {
|
|
struct pevent *pevent;
|
|
int filters;
|
|
struct filter_type *event_filters;
|
|
char error_buffer[PEVENT_FILTER_ERROR_BUFSZ];
|
|
};
|
|
|
|
struct event_filter *pevent_filter_alloc(struct pevent *pevent);
|
|
|
|
/* for backward compatibility */
|
|
#define FILTER_NONE PEVENT_ERRNO__NO_FILTER
|
|
#define FILTER_NOEXIST PEVENT_ERRNO__FILTER_NOT_FOUND
|
|
#define FILTER_MISS PEVENT_ERRNO__FILTER_MISS
|
|
#define FILTER_MATCH PEVENT_ERRNO__FILTER_MATCH
|
|
|
|
enum filter_trivial_type {
|
|
FILTER_TRIVIAL_FALSE,
|
|
FILTER_TRIVIAL_TRUE,
|
|
FILTER_TRIVIAL_BOTH,
|
|
};
|
|
|
|
enum pevent_errno pevent_filter_add_filter_str(struct event_filter *filter,
|
|
const char *filter_str);
|
|
|
|
enum pevent_errno pevent_filter_match(struct event_filter *filter,
|
|
struct pevent_record *record);
|
|
|
|
int pevent_filter_strerror(struct event_filter *filter, enum pevent_errno err,
|
|
char *buf, size_t buflen);
|
|
|
|
int pevent_event_filtered(struct event_filter *filter,
|
|
int event_id);
|
|
|
|
void pevent_filter_reset(struct event_filter *filter);
|
|
|
|
int pevent_filter_clear_trivial(struct event_filter *filter,
|
|
enum filter_trivial_type type);
|
|
|
|
void pevent_filter_free(struct event_filter *filter);
|
|
|
|
char *pevent_filter_make_string(struct event_filter *filter, int event_id);
|
|
|
|
int pevent_filter_remove_event(struct event_filter *filter,
|
|
int event_id);
|
|
|
|
int pevent_filter_event_has_trivial(struct event_filter *filter,
|
|
int event_id,
|
|
enum filter_trivial_type type);
|
|
|
|
int pevent_filter_copy(struct event_filter *dest, struct event_filter *source);
|
|
|
|
int pevent_update_trivial(struct event_filter *dest, struct event_filter *source,
|
|
enum filter_trivial_type type);
|
|
|
|
int pevent_filter_compare(struct event_filter *filter1, struct event_filter *filter2);
|
|
|
|
#endif /* _PARSE_EVENTS_H */
|