Release 4.7 include/trace/syscall.h

#ifndef _TRACE_SYSCALL_H

#define _TRACE_SYSCALL_H

#include <linux/tracepoint.h>
#include <linux/unistd.h>
#include <linux/trace_events.h>
#include <linux/thread_info.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_fields: list of fields for syscall_enter trace event
 * @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 trace_event_call *enter_event;
	
struct trace_event_call *exit_event;
};

#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)


static inline void syscall_tracepoint_update(struct task_struct *p)
{
	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
		set_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT);
	else
		clear_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT);
}
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#else


static inline void syscall_tracepoint_update(struct task_struct *p)
{
}
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#endif

#endif /* _TRACE_SYSCALL_H */
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Directory: include/trace

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