| #ifndef _TRACE_SYSCALL_H | 
 | #define _TRACE_SYSCALL_H | 
 |  | 
 | #include <linux/tracepoint.h> | 
 | #include <linux/unistd.h> | 
 | #include <linux/ftrace_event.h> | 
 |  | 
 | #include <asm/ptrace.h> | 
 |  | 
 |  | 
 | /* | 
 |  * A syscall entry in the ftrace syscalls array. | 
 |  * | 
 |  * @name: name of the syscall | 
 |  * @syscall_nr: number of the syscall | 
 |  * @nb_args: number of parameters it takes | 
 |  * @types: list of types as strings | 
 |  * @args: list of args as strings (args[i] matches types[i]) | 
 |  * @enter_event: associated syscall_enter trace event | 
 |  * @exit_event: associated syscall_exit trace event | 
 |  */ | 
 | struct syscall_metadata { | 
 | 	const char	*name; | 
 | 	int		syscall_nr; | 
 | 	int		nb_args; | 
 | 	const char	**types; | 
 | 	const char	**args; | 
 | 	struct list_head enter_fields; | 
 |  | 
 | 	struct ftrace_event_call *enter_event; | 
 | 	struct ftrace_event_call *exit_event; | 
 | }; | 
 |  | 
 | #endif /* _TRACE_SYSCALL_H */ |