1 #ifndef __TRACE_EVENTS_H
2 #define __TRACE_EVENTS_H
6 typedef enum print_line_t (*trace_print_func
)(struct trace_iterator
*iter
,
10 struct hlist_node node
;
12 trace_print_func trace
;
15 trace_print_func binary
;
18 extern enum print_line_t
19 trace_print_bprintk_msg_only(struct trace_iterator
*iter
);
20 extern enum print_line_t
21 trace_print_printk_msg_only(struct trace_iterator
*iter
);
23 extern int trace_seq_printf(struct trace_seq
*s
, const char *fmt
, ...)
24 __attribute__ ((format (printf
, 2, 3)));
26 trace_seq_bprintf(struct trace_seq
*s
, const char *fmt
, const u32
*binary
);
28 seq_print_ip_sym(struct trace_seq
*s
, unsigned long ip
,
29 unsigned long sym_flags
);
30 extern ssize_t
trace_seq_to_user(struct trace_seq
*s
, char __user
*ubuf
,
32 extern int trace_seq_puts(struct trace_seq
*s
, const char *str
);
33 extern int trace_seq_putc(struct trace_seq
*s
, unsigned char c
);
34 extern int trace_seq_putmem(struct trace_seq
*s
, const void *mem
, size_t len
);
35 extern int trace_seq_putmem_hex(struct trace_seq
*s
, const void *mem
,
37 extern void *trace_seq_reserve(struct trace_seq
*s
, size_t len
);
38 extern int trace_seq_path(struct trace_seq
*s
, struct path
*path
);
39 extern int seq_print_userip_objs(const struct userstack_entry
*entry
,
40 struct trace_seq
*s
, unsigned long sym_flags
);
41 extern int seq_print_user_ip(struct trace_seq
*s
, struct mm_struct
*mm
,
42 unsigned long ip
, unsigned long sym_flags
);
44 extern int trace_print_context(struct trace_iterator
*iter
);
45 extern int trace_print_lat_context(struct trace_iterator
*iter
);
47 extern struct trace_event
*ftrace_find_event(int type
);
48 extern int register_ftrace_event(struct trace_event
*event
);
49 extern int unregister_ftrace_event(struct trace_event
*event
);
51 extern enum print_line_t
trace_nop_print(struct trace_iterator
*iter
,
54 #define MAX_MEMHEX_BYTES 8
55 #define HEX_CHARS (MAX_MEMHEX_BYTES*2 + 1)
57 #define SEQ_PUT_FIELD_RET(s, x) \
59 if (!trace_seq_putmem(s, &(x), sizeof(x))) \
60 return TRACE_TYPE_PARTIAL_LINE; \
63 #define SEQ_PUT_HEX_FIELD_RET(s, x) \
65 BUILD_BUG_ON(sizeof(x) > MAX_MEMHEX_BYTES); \
66 if (!trace_seq_putmem_hex(s, &(x), sizeof(x))) \
67 return TRACE_TYPE_PARTIAL_LINE; \