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

Commit c7ef3a90 authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt
Browse files

tracing: Have syscall tracing call its own init function 



In the clean up of having all events call one specific function,
the syscall event init was changed to call this helper function.

With the new print_fmt updates, the syscalls need to do special
initializations. This patch converts the syscall events to call
its own init function again.

Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent a342a028

include/linux/syscalls.h

+2 −2
Original line number Diff line number Diff line
@@ -143,7 +143,7 @@ struct perf_event_attr; 
		.name                   = "sys_enter"#sname,		\

		.system                 = "syscalls",			\

		.event                  = &enter_syscall_print_##sname,	\

		.raw_init		= trace_event_raw_init,		\

		.raw_init		= init_syscall_trace,		\

		.show_format		= syscall_enter_format,		\

		.define_fields		= syscall_enter_define_fields,	\

		.regfunc		= reg_event_syscall_enter,	\
@@ -165,7 +165,7 @@ struct perf_event_attr; 
		.name                   = "sys_exit"#sname,		\

		.system                 = "syscalls",			\

		.event                  = &exit_syscall_print_##sname,	\

		.raw_init		= trace_event_raw_init,		\

		.raw_init		= init_syscall_trace,		\

		.show_format		= syscall_exit_format,		\

		.define_fields		= syscall_exit_define_fields,	\

		.regfunc		= reg_event_syscall_exit,	\

kernel/trace/trace_syscalls.c

+6 −6
Original line number Diff line number Diff line
@@ -450,14 +450,14 @@ int init_syscall_trace(struct ftrace_event_call *call) 
	if (set_syscall_print_fmt(call) < 0)

		return -ENOMEM;



	id = register_ftrace_event(call->event);

	if (!id) {

	id = trace_event_raw_init(call);



	if (id < 0) {

		free_syscall_print_fmt(call);

		return -ENODEV;

		return id;

	}

	call->id = id;

	INIT_LIST_HEAD(&call->fields);

	return 0;



	return id;

}



int __init init_ftrace_syscalls(void)