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-rw-r--r--kernel/trace/trace_output.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/kernel/trace/trace_output.h b/kernel/trace/trace_output.h
new file mode 100644
index 000000000..4c954636c
--- /dev/null
+++ b/kernel/trace/trace_output.h
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef __TRACE_EVENTS_H
+#define __TRACE_EVENTS_H
+
+#include <linux/trace_seq.h>
+#include "trace.h"
+
+extern enum print_line_t
+trace_print_bputs_msg_only(struct trace_iterator *iter);
+extern enum print_line_t
+trace_print_bprintk_msg_only(struct trace_iterator *iter);
+extern enum print_line_t
+trace_print_printk_msg_only(struct trace_iterator *iter);
+
+extern int
+seq_print_ip_sym(struct trace_seq *s, unsigned long ip,
+ unsigned long sym_flags);
+
+extern void trace_seq_print_sym(struct trace_seq *s, unsigned long address, bool offset);
+extern int trace_print_context(struct trace_iterator *iter);
+extern int trace_print_lat_context(struct trace_iterator *iter);
+
+extern void trace_event_read_lock(void);
+extern void trace_event_read_unlock(void);
+extern struct trace_event *ftrace_find_event(int type);
+
+extern enum print_line_t trace_nop_print(struct trace_iterator *iter,
+ int flags, struct trace_event *event);
+extern int
+trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry);
+
+/* used by module unregistering */
+extern int __unregister_trace_event(struct trace_event *event);
+extern struct rw_semaphore trace_event_sem;
+
+#define SEQ_PUT_FIELD(s, x) \
+ trace_seq_putmem(s, &(x), sizeof(x))
+
+#define SEQ_PUT_HEX_FIELD(s, x) \
+ trace_seq_putmem_hex(s, &(x), sizeof(x))
+
+#endif
+