| 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 | |