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 int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
19 __attribute__ ((format (printf, 2, 3)));
21 trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary);
23 seq_print_ip_sym(struct trace_seq *s, unsigned long ip,
24 unsigned long sym_flags);
25 extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
27 int trace_seq_puts(struct trace_seq *s, const char *str);
28 int trace_seq_putc(struct trace_seq *s, unsigned char c);
29 int trace_seq_putmem(struct trace_seq *s, void *mem, size_t len);
30 int trace_seq_putmem_hex(struct trace_seq *s, void *mem, size_t len);
31 int trace_seq_path(struct trace_seq *s, struct path *path);
32 int seq_print_userip_objs(const struct userstack_entry *entry,
33 struct trace_seq *s, unsigned long sym_flags);
34 int seq_print_user_ip(struct trace_seq *s, struct mm_struct *mm,
35 unsigned long ip, unsigned long sym_flags);
37 int trace_print_context(struct trace_iterator *iter);
38 int trace_print_lat_context(struct trace_iterator *iter);
40 struct trace_event *ftrace_find_event(int type);
41 int register_ftrace_event(struct trace_event *event);
42 int unregister_ftrace_event(struct trace_event *event);
44 enum print_line_t trace_nop_print(struct trace_iterator *iter, int flags);
46 #define MAX_MEMHEX_BYTES 8
47 #define HEX_CHARS (MAX_MEMHEX_BYTES*2 + 1)
49 #define SEQ_PUT_FIELD_RET(s, x) \
51 if (!trace_seq_putmem(s, &(x), sizeof(x))) \
52 return TRACE_TYPE_PARTIAL_LINE; \
55 #define SEQ_PUT_HEX_FIELD_RET(s, x) \
57 BUILD_BUG_ON(sizeof(x) > MAX_MEMHEX_BYTES); \
58 if (!trace_seq_putmem_hex(s, &(x), sizeof(x))) \
59 return TRACE_TYPE_PARTIAL_LINE; \