Commit | Line | Data |
---|---|---|
f0868d1e SR |
1 | #ifndef __TRACE_EVENTS_H |
2 | #define __TRACE_EVENTS_H | |
3 | ||
4 | #include "trace.h" | |
5 | ||
6 | typedef int (*trace_print_func)(struct trace_seq *s, struct trace_entry *entry, | |
7 | int flags); | |
8 | ||
9 | struct trace_event { | |
10 | struct hlist_node node; | |
11 | int type; | |
12 | trace_print_func trace; | |
13 | trace_print_func latency_trace; | |
14 | trace_print_func raw; | |
15 | trace_print_func hex; | |
16 | trace_print_func binary; | |
17 | }; | |
18 | ||
c37abc55 SR |
19 | extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...) |
20 | __attribute__ ((format (printf, 2, 3))); | |
f0868d1e SR |
21 | extern int |
22 | seq_print_ip_sym(struct trace_seq *s, unsigned long ip, | |
23 | unsigned long sym_flags); | |
24 | extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf, | |
25 | size_t cnt); | |
26 | int trace_seq_puts(struct trace_seq *s, const char *str); | |
27 | int trace_seq_putc(struct trace_seq *s, unsigned char c); | |
28 | int trace_seq_putmem(struct trace_seq *s, void *mem, size_t len); | |
29 | int trace_seq_putmem_hex(struct trace_seq *s, void *mem, size_t len); | |
30 | int trace_seq_path(struct trace_seq *s, struct path *path); | |
31 | int seq_print_userip_objs(const struct userstack_entry *entry, | |
32 | struct trace_seq *s, unsigned long sym_flags); | |
33 | int seq_print_user_ip(struct trace_seq *s, struct mm_struct *mm, | |
34 | unsigned long ip, unsigned long sym_flags); | |
35 | ||
36 | struct trace_event *ftrace_find_event(int type); | |
37 | int register_ftrace_event(struct trace_event *event); | |
38 | int unregister_ftrace_event(struct trace_event *event); | |
39 | ||
f633cef0 SR |
40 | int |
41 | trace_nop_print(struct trace_seq *s, struct trace_entry *entry, int flags); | |
42 | ||
f0868d1e SR |
43 | #define MAX_MEMHEX_BYTES 8 |
44 | #define HEX_CHARS (MAX_MEMHEX_BYTES*2 + 1) | |
45 | ||
f633cef0 SR |
46 | #define SEQ_PUT_FIELD_RET(s, x) \ |
47 | do { \ | |
48 | if (!trace_seq_putmem(s, &(x), sizeof(x))) \ | |
6c1a99af | 49 | return TRACE_TYPE_PARTIAL_LINE; \ |
f633cef0 SR |
50 | } while (0) |
51 | ||
52 | #define SEQ_PUT_HEX_FIELD_RET(s, x) \ | |
53 | do { \ | |
54 | BUILD_BUG_ON(sizeof(x) > MAX_MEMHEX_BYTES); \ | |
55 | if (!trace_seq_putmem_hex(s, &(x), sizeof(x))) \ | |
6c1a99af | 56 | return TRACE_TYPE_PARTIAL_LINE; \ |
f633cef0 SR |
57 | } while (0) |
58 | ||
f0868d1e SR |
59 | #endif |
60 |