Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f4d5c029 authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Steven Rostedt
Browse files

tracing: Compile time initialization for event flags value 



Compile time initialization is better than runtime initialization.

Remove many early_initcall()s and many trace_init_flags_##name()s.

Acked-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <4D3FDFFC.6030304@cn.fujitsu.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent cce1dac8

include/linux/syscalls.h

+4 −4
Original line number Diff line number Diff line
@@ -132,11 +132,11 @@ extern struct trace_event_functions exit_syscall_print_funcs; 
		.class			= &event_class_syscall_enter,	\

		.event.funcs            = &enter_syscall_print_funcs,	\

		.data			= (void *)&__syscall_meta_##sname,\

		.flags			= TRACE_EVENT_FL_CAP_ANY,	\

	};								\

	static struct ftrace_event_call __used				\

	  __attribute__((section("_ftrace_events")))			\

	 *__event_enter_##sname = &event_enter_##sname;			\

	__TRACE_EVENT_FLAGS(enter_##sname, TRACE_EVENT_FL_CAP_ANY)

	 *__event_enter_##sname = &event_enter_##sname;



#define SYSCALL_TRACE_EXIT_EVENT(sname)					\

	static struct syscall_metadata __syscall_meta_##sname;		\
@@ -146,11 +146,11 @@ extern struct trace_event_functions exit_syscall_print_funcs; 
		.class			= &event_class_syscall_exit,	\

		.event.funcs		= &exit_syscall_print_funcs,	\

		.data			= (void *)&__syscall_meta_##sname,\

		.flags			= TRACE_EVENT_FL_CAP_ANY,	\

	};								\

	static struct ftrace_event_call __used				\

	  __attribute__((section("_ftrace_events")))			\

	*__event_exit_##sname = &event_exit_##sname;			\

	__TRACE_EVENT_FLAGS(exit_##sname, TRACE_EVENT_FL_CAP_ANY)

	*__event_exit_##sname = &event_exit_##sname;



#define SYSCALL_METADATA(sname, nb)				\

	SYSCALL_TRACE_ENTER_EVENT(sname);			\