1 #ifndef __TRACE_EVENTS_H
2 #define __TRACE_EVENTS_H
6 typedef int (*trace_print_func)(struct trace_seq *s, struct trace_entry *entry,
10 struct hlist_node node;
12 trace_print_func trace;
13 trace_print_func latency_trace;
16 trace_print_func binary;
19 extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...);
21 seq_print_ip_sym(struct trace_seq *s, unsigned long ip,
22 unsigned long sym_flags);
23 extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
25 int trace_seq_puts(struct trace_seq *s, const char *str);
26 int trace_seq_putc(struct trace_seq *s, unsigned char c);
27 int trace_seq_putmem(struct trace_seq *s, void *mem, size_t len);
28 int trace_seq_putmem_hex(struct trace_seq *s, void *mem, size_t len);
29 int trace_seq_path(struct trace_seq *s, struct path *path);
30 int seq_print_userip_objs(const struct userstack_entry *entry,
31 struct trace_seq *s, unsigned long sym_flags);
32 int seq_print_user_ip(struct trace_seq *s, struct mm_struct *mm,
33 unsigned long ip, unsigned long sym_flags);
35 struct trace_event *ftrace_find_event(int type);
36 int register_ftrace_event(struct trace_event *event);
37 int unregister_ftrace_event(struct trace_event *event);
40 trace_nop_print(struct trace_seq *s, struct trace_entry *entry, int flags);
42 #define MAX_MEMHEX_BYTES 8
43 #define HEX_CHARS (MAX_MEMHEX_BYTES*2 + 1)
45 #define SEQ_PUT_FIELD_RET(s, x) \
47 if (!trace_seq_putmem(s, &(x), sizeof(x))) \
51 #define SEQ_PUT_HEX_FIELD_RET(s, x) \
53 BUILD_BUG_ON(sizeof(x) > MAX_MEMHEX_BYTES); \
54 if (!trace_seq_putmem_hex(s, &(x), sizeof(x))) \