Merge commit 'v3.4.4' into android-tegra-nv-3.4
[linux-2.6.git] / kernel / trace / trace_output.h
1 #ifndef __TRACE_EVENTS_H
2 #define __TRACE_EVENTS_H
3
4 #include <linux/trace_seq.h>
5 #include "trace.h"
6
7 extern enum print_line_t
8 trace_print_bprintk_msg_only(struct trace_iterator *iter);
9 extern enum print_line_t
10 trace_print_printk_msg_only(struct trace_iterator *iter);
11
12 extern int
13 seq_print_ip_sym(struct trace_seq *s, unsigned long ip,
14                 unsigned long sym_flags);
15 extern int seq_print_userip_objs(const struct userstack_entry *entry,
16                                  struct trace_seq *s, unsigned long sym_flags);
17 extern int seq_print_user_ip(struct trace_seq *s, struct mm_struct *mm,
18                              unsigned long ip, unsigned long sym_flags);
19
20 extern int trace_print_context(struct trace_iterator *iter);
21 extern int trace_print_lat_context(struct trace_iterator *iter);
22
23 extern void trace_event_read_lock(void);
24 extern void trace_event_read_unlock(void);
25 extern struct trace_event *ftrace_find_event(int type);
26
27 extern enum print_line_t trace_nop_print(struct trace_iterator *iter,
28                                          int flags, struct trace_event *event);
29 extern int
30 trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry);
31
32 /* used by module unregistering */
33 extern int __unregister_ftrace_event(struct trace_event *event);
34 extern struct rw_semaphore trace_event_mutex;
35
36 #define MAX_MEMHEX_BYTES        8
37 #define HEX_CHARS               (MAX_MEMHEX_BYTES*2 + 1)
38
39 #define SEQ_PUT_FIELD_RET(s, x)                         \
40 do {                                                    \
41         if (!trace_seq_putmem(s, &(x), sizeof(x)))      \
42                 return TRACE_TYPE_PARTIAL_LINE;         \
43 } while (0)
44
45 #define SEQ_PUT_HEX_FIELD_RET(s, x)                     \
46 do {                                                    \
47         BUILD_BUG_ON(sizeof(x) > MAX_MEMHEX_BYTES);     \
48         if (!trace_seq_putmem_hex(s, &(x), sizeof(x)))  \
49                 return TRACE_TYPE_PARTIAL_LINE;         \
50 } while (0)
51
52 #endif
53