1 // SPDX-License-Identifier: GPL-2.0 2 #ifndef __TRACE_EVENTS_H 3 #define __TRACE_EVENTS_H 4 5 #include <linux/trace_seq.h> 6 #include "trace.h" 7 8 extern enum print_line_t 9 trace_print_bputs_msg_only(struct trace_iterator *iter); 10 extern enum print_line_t 11 trace_print_bprintk_msg_only(struct trace_iterator *iter); 12 extern enum print_line_t 13 trace_print_printk_msg_only(struct trace_iterator *iter); 14 15 extern int 16 seq_print_ip_sym(struct trace_seq *s, unsigned long ip, 17 unsigned long sym_flags); 18 19 extern void trace_seq_print_sym(struct trace_seq *s, unsigned long address, bool offset); 20 extern int trace_print_context(struct trace_iterator *iter); 21 extern int trace_print_lat_context(struct trace_iterator *iter); 22 extern enum print_line_t print_event_fields(struct trace_iterator *iter, 23 struct trace_event *event); 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_trace_event(struct trace_event *event); 36 extern struct rw_semaphore trace_event_sem; 37 38 #define SEQ_PUT_FIELD(s, x) \ 39 trace_seq_putmem(s, &(x), sizeof(x)) 40 41 #define SEQ_PUT_HEX_FIELD(s, x) \ 42 trace_seq_putmem_hex(s, &(x), sizeof(x)) 43 44 #endif 45 46