trace_output.h 1.2 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. #ifndef __TRACE_EVENTS_H
  3. #define __TRACE_EVENTS_H
  4. #include <linux/trace_seq.h>
  5. #include "trace.h"
  6. extern enum print_line_t
  7. trace_print_bputs_msg_only(struct trace_iterator *iter);
  8. extern enum print_line_t
  9. trace_print_bprintk_msg_only(struct trace_iterator *iter);
  10. extern enum print_line_t
  11. trace_print_printk_msg_only(struct trace_iterator *iter);
  12. extern int
  13. seq_print_ip_sym(struct trace_seq *s, unsigned long ip,
  14. unsigned long sym_flags);
  15. extern int trace_print_context(struct trace_iterator *iter);
  16. extern int trace_print_lat_context(struct trace_iterator *iter);
  17. extern void trace_event_read_lock(void);
  18. extern void trace_event_read_unlock(void);
  19. extern struct trace_event *ftrace_find_event(int type);
  20. extern enum print_line_t trace_nop_print(struct trace_iterator *iter,
  21. int flags, struct trace_event *event);
  22. extern int
  23. trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry);
  24. /* used by module unregistering */
  25. extern int __unregister_trace_event(struct trace_event *event);
  26. extern struct rw_semaphore trace_event_sem;
  27. #define SEQ_PUT_FIELD(s, x) \
  28. trace_seq_putmem(s, &(x), sizeof(x))
  29. #define SEQ_PUT_HEX_FIELD(s, x) \
  30. trace_seq_putmem_hex(s, &(x), sizeof(x))
  31. #endif