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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_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);
 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 
 54 

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