1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _TRACE_SYSCALL_H
 3#define _TRACE_SYSCALL_H
 4
 5#include <linux/tracepoint.h>
 6#include <linux/unistd.h>
 7#include <linux/trace_events.h>
 8#include <linux/thread_info.h>
 9
10#include <asm/ptrace.h>
11
12
13/*
14 * A syscall entry in the ftrace syscalls array.
15 *
16 * @name: name of the syscall
17 * @syscall_nr: number of the syscall
18 * @nb_args: number of parameters it takes
19 * @types: list of types as strings
20 * @args: list of args as strings (args[i] matches types[i])
21 * @enter_fields: list of fields for syscall_enter trace event
22 * @enter_event: associated syscall_enter trace event
23 * @exit_event: associated syscall_exit trace event
24 */
25struct syscall_metadata {
26	const char	*name;
27	int		syscall_nr;
28	int		nb_args;
29	const char	**types;
30	const char	**args;
31	struct list_head enter_fields;
32
33	struct trace_event_call *enter_event;
34	struct trace_event_call *exit_event;
35};
36
37#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
38static inline void syscall_tracepoint_update(struct task_struct *p)
39{
40	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
41		set_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT);
42	else
43		clear_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT);
44}
45#else
46static inline void syscall_tracepoint_update(struct task_struct *p)
47{
48}
49#endif
50
51#endif /* _TRACE_SYSCALL_H */

 
 1#ifndef _TRACE_SYSCALL_H
 2#define _TRACE_SYSCALL_H
 3
 4#include <linux/tracepoint.h>
 5#include <linux/unistd.h>
 6#include <linux/ftrace_event.h>
 
 7
 8#include <asm/ptrace.h>
 9
10
11/*
12 * A syscall entry in the ftrace syscalls array.
13 *
14 * @name: name of the syscall
15 * @syscall_nr: number of the syscall
16 * @nb_args: number of parameters it takes
17 * @types: list of types as strings
18 * @args: list of args as strings (args[i] matches types[i])
19 * @enter_fields: list of fields for syscall_enter trace event
20 * @enter_event: associated syscall_enter trace event
21 * @exit_event: associated syscall_exit trace event
22 */
23struct syscall_metadata {
24	const char	*name;
25	int		syscall_nr;
26	int		nb_args;
27	const char	**types;
28	const char	**args;
29	struct list_head enter_fields;
30
31	struct ftrace_event_call *enter_event;
32	struct ftrace_event_call *exit_event;
33};
 
 
 
 
 
 
 
 
 
 
 
 
 
 
34
35#endif /* _TRACE_SYSCALL_H */