Commit | Line | Data |
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f0868d1e SR |
1 | #ifndef __TRACE_EVENTS_H |
2 | #define __TRACE_EVENTS_H | |
3 | ||
4 | #include "trace.h" | |
5 | ||
ae7462b4 ACM |
6 | typedef enum print_line_t (*trace_print_func)(struct trace_iterator *iter, |
7 | int flags); | |
f0868d1e SR |
8 | |
9 | struct trace_event { | |
10 | struct hlist_node node; | |
11 | int type; | |
12 | trace_print_func trace; | |
f0868d1e SR |
13 | trace_print_func raw; |
14 | trace_print_func hex; | |
15 | trace_print_func binary; | |
16 | }; | |
17 | ||
c37abc55 SR |
18 | extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...) |
19 | __attribute__ ((format (printf, 2, 3))); | |
f0868d1e | 20 | extern int |
769b0441 FW |
21 | trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary); |
22 | extern int | |
f0868d1e SR |
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, | |
26 | size_t cnt); | |
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); | |
36 | ||
c4a8e8be FW |
37 | int trace_print_context(struct trace_iterator *iter); |
38 | int trace_print_lat_context(struct trace_iterator *iter); | |
39 | ||
f0868d1e SR |
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); | |
43 | ||
ae7462b4 | 44 | enum print_line_t trace_nop_print(struct trace_iterator *iter, int flags); |
f633cef0 | 45 | |
f0868d1e SR |
46 | #define MAX_MEMHEX_BYTES 8 |
47 | #define HEX_CHARS (MAX_MEMHEX_BYTES*2 + 1) | |
48 | ||
f633cef0 SR |
49 | #define SEQ_PUT_FIELD_RET(s, x) \ |
50 | do { \ | |
51 | if (!trace_seq_putmem(s, &(x), sizeof(x))) \ | |
6c1a99af | 52 | return TRACE_TYPE_PARTIAL_LINE; \ |
f633cef0 SR |
53 | } while (0) |
54 | ||
55 | #define SEQ_PUT_HEX_FIELD_RET(s, x) \ | |
56 | do { \ | |
57 | BUILD_BUG_ON(sizeof(x) > MAX_MEMHEX_BYTES); \ | |
58 | if (!trace_seq_putmem_hex(s, &(x), sizeof(x))) \ | |
6c1a99af | 59 | return TRACE_TYPE_PARTIAL_LINE; \ |
f633cef0 SR |
60 | } while (0) |
61 | ||
f0868d1e SR |
62 | #endif |
63 |