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 void trace_print_seq(struct seq_file *m, struct trace_seq *s);
25 extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
26 __attribute__ ((format (printf, 2, 3)));
28 trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary);
30 seq_print_ip_sym(struct trace_seq *s, unsigned long ip,
31 unsigned long sym_flags);
32 extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
34 extern int trace_seq_puts(struct trace_seq *s, const char *str);
35 extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
36 extern int trace_seq_putmem(struct trace_seq *s, const void *mem, size_t len);
37 extern int trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
39 extern void *trace_seq_reserve(struct trace_seq *s, size_t len);
40 extern int trace_seq_path(struct trace_seq *s, struct path *path);
41 extern int seq_print_userip_objs(const struct userstack_entry *entry,
42 struct trace_seq *s, unsigned long sym_flags);
43 extern int seq_print_user_ip(struct trace_seq *s, struct mm_struct *mm,
44 unsigned long ip, unsigned long sym_flags);
46 extern int trace_print_context(struct trace_iterator *iter);
47 extern int trace_print_lat_context(struct trace_iterator *iter);
49 extern struct trace_event *ftrace_find_event(int type);
50 extern int register_ftrace_event(struct trace_event *event);
51 extern int unregister_ftrace_event(struct trace_event *event);
53 extern enum print_line_t trace_nop_print(struct trace_iterator *iter,
56 #define MAX_MEMHEX_BYTES 8
57 #define HEX_CHARS (MAX_MEMHEX_BYTES*2 + 1)
59 #define SEQ_PUT_FIELD_RET(s, x) \
61 if (!trace_seq_putmem(s, &(x), sizeof(x))) \
62 return TRACE_TYPE_PARTIAL_LINE; \
65 #define SEQ_PUT_HEX_FIELD_RET(s, x) \
67 BUILD_BUG_ON(sizeof(x) > MAX_MEMHEX_BYTES); \
68 if (!trace_seq_putmem_hex(s, &(x), sizeof(x))) \
69 return TRACE_TYPE_PARTIAL_LINE; \