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TOMOYO Linux Cross Reference
Linux/kernel/trace/trace_output.h

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  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_bputs_msg_only(struct trace_iterator *iter);
  9 extern enum print_line_t
 10 trace_print_bprintk_msg_only(struct trace_iterator *iter);
 11 extern enum print_line_t
 12 trace_print_printk_msg_only(struct trace_iterator *iter);
 13 
 14 extern int
 15 seq_print_ip_sym(struct trace_seq *s, unsigned long ip,
 16                 unsigned long sym_flags);
 17 extern int seq_print_userip_objs(const struct userstack_entry *entry,
 18                                  struct trace_seq *s, unsigned long sym_flags);
 19 extern int seq_print_user_ip(struct trace_seq *s, struct mm_struct *mm,
 20                              unsigned long ip, unsigned long sym_flags);
 21 
 22 extern int trace_print_context(struct trace_iterator *iter);
 23 extern int trace_print_lat_context(struct trace_iterator *iter);
 24 
 25 extern void trace_event_read_lock(void);
 26 extern void trace_event_read_unlock(void);
 27 extern struct trace_event *ftrace_find_event(int type);
 28 
 29 extern enum print_line_t trace_nop_print(struct trace_iterator *iter,
 30                                          int flags, struct trace_event *event);
 31 extern int
 32 trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry);
 33 
 34 /* used by module unregistering */
 35 extern int __unregister_ftrace_event(struct trace_event *event);
 36 extern struct rw_semaphore trace_event_sem;
 37 
 38 #define MAX_MEMHEX_BYTES        8
 39 #define HEX_CHARS               (MAX_MEMHEX_BYTES*2 + 1)
 40 
 41 #define SEQ_PUT_FIELD_RET(s, x)                         \
 42 do {                                                    \
 43         if (!trace_seq_putmem(s, &(x), sizeof(x)))      \
 44                 return TRACE_TYPE_PARTIAL_LINE;         \
 45 } while (0)
 46 
 47 #define SEQ_PUT_HEX_FIELD_RET(s, x)                     \
 48 do {                                                    \
 49         BUILD_BUG_ON(sizeof(x) > MAX_MEMHEX_BYTES);     \
 50         if (!trace_seq_putmem_hex(s, &(x), sizeof(x)))  \
 51                 return TRACE_TYPE_PARTIAL_LINE;         \
 52 } while (0)
 53 
 54 #endif
 55 
 56 

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