tracing: Add a helper function for event print functions
Move duplicate code in event print functions to a helper function.
This shrinks the size of the kernel by ~13K.
text data bss dec hex filename
6596137 1743966 10138672 18478775 119f6b7 vmlinux.o.old
6583002 1743849 10138672 18465523 119c2f3 vmlinux.o.new
Link: http://lkml.kernel.org/r/51258746.2060304@huawei.com
Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index fd28c17..4d79d2d 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -38,6 +38,12 @@
const char *ftrace_print_hex_seq(struct trace_seq *p,
const unsigned char *buf, int len);
+struct trace_iterator;
+struct trace_event;
+
+int ftrace_raw_output_prep(struct trace_iterator *iter,
+ struct trace_event *event);
+
/*
* The trace entry - the most basic unit of tracing. This is what
* is printed in the end as a single line in the trace output, such as:
@@ -95,8 +101,6 @@
};
-struct trace_event;
-
typedef enum print_line_t (*trace_print_func)(struct trace_iterator *iter,
int flags, struct trace_event *event);